Dissertations / Theses on the topic 'Construction plant'
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1
Riaz, Zainab. "Improving construction plant safety using advanced ICT." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8053.
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In recent years, a number of advanced Information and Communication Technology (ICT) solutions have been developed to assist in the management of business processes and working environments. Radio Frequency Identification (RFID) tagging technology and mobile computing are two such technologies which have been adopted for use in hybrid systems because they can monitor and manage industrial health, safety and welfare activities.
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Yaish, Sami Abdul-Rahman. "Construction and screening of plant genomic libraries." Thesis, Durham University, 1990. http://etheses.dur.ac.uk/6054/.
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A library of pea (Pisum sativum L) genomic DNA in bacteriophage EMBL3 was screened for seed storage protein genes of the legumin and vicilin families. Three genomic clones were isolated. One of the clones was found to contain a gene in the Leg A sub-family which was designated Leg E. The nucleotide and predicted amino acid sequence of Leg E were compared to those of Leg A. The coding sequences of both genes are strongly homologous with only 9 bases difference out of 1560 bases. A second genomic clone contained two genes from the Leg J subfamily. Leg J and Leg K. The clone was shown to overlap with a genomic clone isolated previously, JC5 (Gatehouse et al. 1988). Strong homology was found between the Leg K and Leg J sequences. The Leg K gene is predicted to be pseudogene, due to the conversion of the ATG methionine start codon to a GTG valine codon and the presence of a stop codon in the 5' end of the coding sequence in the reading frame predicted by the first subsequent start codon. A genomic library was constructed for Arabidopsis thaliana, using EMBL3 as a vector to sub-clone Sau3AI partially digested Arabidopsis genomic DNA. About 8 x 10(^4) random clones were obtained when the ligated vector DNA and insert were in vitro packaged. The Arabidopsis gene library was screened for clones containing sequences encoding the cell wall protein extensin, using a rape (Brassica napus L extensin cDNA as a probe. Six clones were isolated, two of which were restriction mapped. One of them was partially sequenced. This clone did not contain an extensin gene homologous to the probe sequence, and only contained a short extensin-like sequence which was responsible for the observed hybridisation. The putative gene may represent another type of protein, since it was expressed in the root of Arabidopsis and Brassica napus L, as shown by "Northern" blots which were probed with labelled DNA from the clone.
3
Ogundipe, O. "The use of realtime kinematic GPS on construction plant." Thesis, University of Nottingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396619.
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Lin, Lie-Chien. "An integrated framework for plant layout evaluation." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/24226.
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Lapp, Christopher Warren. "A methodology for modular nuclear power plant design and construction." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/96442.
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Jurewicz, Jacob M. "Design and construction of an offshore floating nuclear power plant." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/103707.
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Thesis: S.M. and S.B., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 135-138).
This thesis details the ongoing development of a new Offshore Floating Nuclear Plant (OFNP) concept that exhibits a promising potential for economic and rapid deployment on a global scale. The OFNP creatively combines state-of-the-art Light Water Reactors (LWRs) and floating platforms similar to those used in offshore oil and gas operations. A reliable and cost-effective global supply chain exists for both technologies, which enables a robust expansion in the use of nuclear energy on a time scale consistent with combating climate change in the near future. The OFNP is a plant that can be entirely built within a floating platform in a shipyard, transferred to the site, where it is anchored within 12 nautical miles (22 km) off the coast in relatively deep water (=/> 100 m), and connected to the grid via submarine AC transmission cables. Shipyard construction ensures a supply of qualified workers and facilities, and it brings mass-production-like construction efficiency to existing reactor designs. Eventual shipyard decommissioning allows sites to immediately return to a "green field" condition when the plant's life is spent. The crews would operate in monthly or semi-monthly shifts with onboard living quarters, similar to oil and gas platforms. The OFNP is a nuclear plant specifically designed for the global market: it can be constructed in one country or multiple countries and exported internationally. It lends itself to a flexible and mobile electricity generation strategy, which minimizes the need for indigenous nuclear infrastructure in the host country and does not commit the customer to a 40 to 60 years-long project.
by Jacob M. Jurewicz.
S.M. and S.B.
7
Tung, David C. "Welding Metallurgy of Nickel-Based Superalloys for Power Plant Construction." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449164834.
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Walden, Robert P. "A study of nuclear power plant construction in the United States." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26276.
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Biegel, Kathryn E. "Scenario modeling for feasibility assessment of nuclear power plant construction projects." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/103714.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2015."June 2015." Cataloged from PDF version of thesis.
Includes bibliographical references (pages 44-47).
In historical and current experience, the economics of nuclear power have proven to be problematic for utility companies. Construction costs and schedules have proven to be highly unpredictable, with the average reactor construction project costing two to three times more than its initial budget and taking almost twice as long to complete as expected. The causes of this phenomenon have not been well-characterized, even two decades after the last new reactor was brought online in 1996. Scenario generation can provide useful information about the economic viability of nuclear construction projects over a variety of parameter spaces without having to make prescriptive assertions about likely single values for delay and other difficult-to-predict parameters. The MEERKAT model creates scenarios over two different reactor types (Westinghouse AP1000 and NuScale SMR plant); three delay cases (optimistic, median, and pessimistic based on historical data); and six different utility company credit ratings (which translate into varying costs of capital). MEERKAT outputs the levelized cost of electricity (LCOE) for each scenario and compares them to average electricity prices for a number of regions in the United States. These scenarios produce levelized costs of electricity (LCOEs) that are not competitive in a deregulated market in any case, and which may be competitive in regulated markets under certain optimistic conditions. If the AP1000 is considered as more credit-stressful than the SMR project, the SMR becomes more competitive with the AP1000, but the projects' viability in the wider market remains unchanged. However, in general terms the smaller up-front cost of the SMR makes it a more feasible endeavor for a wider variety of utility companies, increasing the potential customer base for nuclear power generation units.
by Kathryn E. Biegel.
S.B.
10
Chen, Lyu-Shi 1958. "EXPERT SYSTEM FOR BROADBAND NETWORK CABLE PLANT DESIGN." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276490.
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This thesis implements the expert system technology in broadband network cable plant design to provide an automated design tool for the design engineer. Under this scheme, the knowledge of the cable plant design engineer can be captured and adapted into a manageable form. The various processes of this system include design rule checking, automatically blueprint layout, signal quality analysis and report generator. As we know, the broadband cable plant design shares 50% of the installation budget at the same time, it is a critical issue in the reliability, the extendability, and the manageability of the network system. It is important that the design can be verified before beginning installation. This is the goal of broadband cable plant design expert system tries to address.
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Sommerfeld, Edward John. "A plant fleet asset management system." Thesis, Queensland University of Technology, 1999.
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Fernandez-Munoz, Raul. "Design of solar power plant with coupled thermal storage." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/16722.
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Massoudi, A. R. "Utilization of plant condition monitoring with reference to the Iranian construction industry." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638024.
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Various possible maintenance strategies could be made up to achieve maintenance objectives such as safety, durability, reliability and the operating economy of machines. Utilization of a plant condition monitoring programme in an industry which has no background on condition-based maintenance requires an appropriate machinery condition monitoring methodology adapting the traditional maintenance system with an efficient maintenance programme. In this research project a plant survey and feasibility study has been implemented through a field study and a condition monitoring pilot study in order to evaluate the condition of machinery under study and the efficiency of an existing maintenance system. Data obtained from the field study were analysed and critical failure problems and the major environmental and operational factors contributing to these failures have been highlighted. A comprehensive oil analysis programme has been carried out on more than one thousand oil samples which had been taken from five major components of construction machinery, i.e., engines, transmission, hydraulic systems, differential and final drive units. The analytical results have been statistically analysed. Initial monitoring guide lines for establishing a condition monitoring programme have been created and the effect of factors, such as operational environment, machine type and make, on analytical results have been investigated. Correlation between various oil analysis readings which could provide useful information for diagnostic purposes have been discussed. The efficiency of an oil analysis condition monitoring programme has also been investigated by comparing the results of machinery which have and have not been continuously monitored. In this work, a simple and quick wear debris test technique (Bottle Method) has been developed for both laboratory and field orientated monitoring programmes. A modified procedure was also developed for evaluating the state and severity of wear in a component. This technique could also be used in field or laboratory monitoring programmes.
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Muleya, Franco. "Modelling wheeled construction plant performance in clay and sandy terrain : a terramechanics perspective." Thesis, Anglia Ruskin University, 2014. http://arro.anglia.ac.uk/550362/.
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This research has investigated the effect of tyre rutting of wheeled construction plant performance traversing in wet and deformable terrain, specifically clay and sand. The purpose was to translate the wheel rutting into performance reduction measured in drawbar-pull. The ultimate goal was to translate the power loss into practical effects on cost, time and other economic variations on construction projects that are characterised by movement of wheeled plant on long haulage deformable roads. In order to achieve this aim, mathematical modelling was deployed based on Newton’s laws of motion, principles of energy conservation and numerical integration. The model is based on a single rigid wheel because construction plant tyres are inflated to high pressure in order to support heavy loads thereby translating the flexible tyres into rigid mode. The results from the mathematical model were verified using a three stage robust verification process which included computational analysis based on two existing semi-empirical methods and real experimental data. Laboratory experiments using Mobility SF- 3713 were also used to check the validity of the results. The results from the mathematical model verify that a flexible tyre can operate in rigid mode if it encounters softer and wet ground. Results further indicate that the soil cohesion, angle of shearing resistance and moisture content play key roles in the subsequent power loss created by motion resistance. All the results from computational analysis and the experiments were found to be consistent with the mathematical model results. The study concludes that there is ample evidence to suggest that there is significant power loss associated with wheeled construction plant traversing in soft terrain which can be assessed. The study further concludes that a combination of economic decisions on variables must be considered with respect to existing ground conditions. This will considerably reduce uncertainty levels in cost and resource management on construction projects.
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Santos, Maria Viviane Agostinho dos. "Integration between the manufacturing plant and a construction in the city of Fortaleza." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15534.
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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoCoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior
Com o aumento da concorrÃncia entre as empresas presentes no mercado da construÃÃo, tem-se buscado uma diminuiÃÃo dos custos para conseguir um maior lucro em obras. Umas das saÃdas viÃveis à a busca da integraÃÃo com os fornecedores de materiais considerados estratÃgicos, como os componentes âblocosâ utilizados para alvenaria. Com o objetivo de analisar a integraÃÃo entre a fÃbrica e a obra, no municÃpio de Fortaleza, atravÃs da identificaÃÃo das caracterÃsticas de gestÃo dos fluxos fÃsicos, um total de quatro obras, todas em fase de execuÃÃo de alvenaria, sendo duas executadas com componentes cerÃmicos e duas executadas com componentes de concreto, foram avaliadas. A mesma quantidade de fabricantes foi utilizada na pesquisa: duas especÃficas para componentes cerÃmicos e as demais para componentes de concreto. Cada obra possuÃa relaÃÃo de parceria jà estabelecida com um fabricante avaliado. Ao final do trabalho sÃo sugeridas algumas orientaÃÃes para a elaboraÃÃo de projetos de inventÃrio para a alvenaria, contribuindo diretamente para a racionalizaÃÃo dos deslocamentos, facilitando o fluxo de materiais e colaborando para o aumento da produtividade dos profissionais, diminuindo, ainda, o desperdÃcio de materiais, equipamentos e mÃo de obra, alÃm de fornecer um maior controle dos componentes. Os paletes com dimensÃo reduzida (0,60 m x 0,60 m), implementados nas fÃbricas e entregues nas obras, facilitam os deslocamentos no interior do canteiro de obras, evitando prejuÃzos ao longo do processo de movimentaÃÃo.
Com o aumento da concorrÃncia entre as empresas presentes no mercado da construÃÃo, tem-se buscado uma diminuiÃÃo dos custos para conseguir um maior lucro em obras. Umas das saÃdas viÃveis à a busca da integraÃÃo com os fornecedores de materiais considerados estratÃgicos, como os componentes âblocosâ utilizados para alvenaria. Com o objetivo de analisar a integraÃÃo entre a fÃbrica e a obra, no municÃpio de Fortaleza, atravÃs da identificaÃÃo das caracterÃsticas de gestÃo dos fluxos fÃsicos, um total de quatro obras, todas em fase de execuÃÃo de alvenaria, sendo duas executadas com componentes cerÃmicos e duas executadas com componentes de concreto, foram avaliadas. A mesma quantidade de fabricantes foi utilizada na pesquisa: duas especÃficas para componentes cerÃmicos e as demais para componentes de concreto. Cada obra possuÃa relaÃÃo de parceria jà estabelecida com um fabricante avaliado. Ao final do trabalho sÃo sugeridas algumas orientaÃÃes para a elaboraÃÃo de projetos de inventÃrio para a alvenaria, contribuindo diretamente para a racionalizaÃÃo dos deslocamentos, facilitando o fluxo de materiais e colaborando para o aumento da produtividade dos profissionais, diminuindo, ainda, o desperdÃcio de materiais, equipamentos e mÃo de obra, alÃm de fornecer um maior controle dos componentes. Os paletes com dimensÃo reduzida (0,60 m x 0,60 m), implementados nas fÃbricas e entregues nas obras, facilitam os deslocamentos no interior do canteiro de obras, evitando prejuÃzos ao longo do processo de movimentaÃÃo.
16
Muleya, Franco. "Modelling wheeled construction plant performance in clay and sandy terrain: a terramechanics perspective." Thesis, Anglia Ruskin University, 2014. https://arro.anglia.ac.uk/id/eprint/550362/1/FRANCO%20MULEYA%20PHD%20FINAL%20COPY.pdf.
Full textAbstract:
This research has investigated the effect of tyre rutting of wheeled construction plant performance traversing in wet and deformable terrain, specifically clay and sand. The purpose was to translate the wheel rutting into performance reduction measured in drawbar-pull. The ultimate goal was to translate the power loss into practical effects on cost, time and other economic variations on construction projects that are characterised by movement of wheeled plant on long haulage deformable roads.
In order to achieve this aim, mathematical modelling was deployed based on Newton’s laws of motion, principles of energy conservation and numerical integration. The model is based on a single rigid wheel because construction plant tyres are inflated to high pressure in order to support heavy loads thereby translating the flexible tyres into rigid mode. The results from the mathematical model were verified using a three stage robust verification process which included computational analysis based on two existing semi-empirical methods and real experimental data. Laboratory experiments using Mobility SF- 3713 were also used to check the validity of the results.
The results from the mathematical model verify that a flexible tyre can operate in rigid mode if it encounters softer and wet ground. Results further indicate that the soil cohesion, angle of shearing resistance and moisture content play key roles in the subsequent power loss created by motion resistance. All the results from computational analysis and the experiments were found to be consistent with the mathematical model results.
The study concludes that there is ample evidence to suggest that there is significant power loss associated with wheeled construction plant traversing in soft terrain which can be assessed. The study further concludes that a combination of economic decisions on variables must be considered with respect to existing ground conditions. This will considerably reduce uncertainty levels in cost and resource management on construction projects.
17
Gohouzoudjehi, Azo Hisidore. "Geoenvironmental Evaluation of Stabilized Water Plant Sludges for Mechanistic Design and Application in Construction." Kyoto University, 2003. http://hdl.handle.net/2433/149532.
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Kyoto University (京都大学)0048
新制・課程博士
博士(農学)
甲第9865号
農博第1302号
新制||農||862(附属図書館)
学位論文||H15||N3740(農学部図書室)
UT51-2003-C633
京都大学大学院農学研究科地域環境科学専攻
(主査)教授 青山 咸康, 教授 高橋 強, 教授 河地 利彦
学位規則第4条第1項該当
18
Keenan, David Wayne 1955. "BLOCK PLAN CONSTRUCTION FROM A DELTAHEDRON-BASED ADJACENCY GRAPH." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/292025.
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Khamis, Ibrahim Ahmad 1956. "DYNAMIC SIMULATION OF A PROCESS INHERENT ULTIMATE SAFETY POWER PLANT (PIUS)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275565.
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Guyer, Brittany (Brittany Leigh). "An examination of the pursuit of nuclear power plant construction projects in the United States." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76526.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2011."June 2011." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 66-67).
The recent serious reconsideration of nuclear power as a means for U.S. electric utilities to increase their generation capacity provokes many questions regarding the achievable success of future nuclear power plant construction projects. The troublesome nature characterizing much of the history of U.S. nuclear power plant commercialization provides impetus for an examination of the reasons behind the unanticipated outcomes of many nuclear power plant construction projects. An examination of the history of U.S. nuclear power provides for both an understanding of the historical context of the technology, in addition to an acknowledgement of the difficulties that have surrounded its commercialization. This thesis work identifies the factors that have contributed most significantly to the inability of U.S. electric utilities to successfully manage nuclear power plant construction projects. The historical record of these endeavors was used to create a causal-loop diagram. This diagram reflects a generalized decision-making process used by electric utilities when considering the pursuit of nuclear power plant construction. From the results of the diagram, policy changes are proposed that could reduce the susceptibility of the decision-making process to environmental instabilities and increase the overall attractiveness of the technology.
by Brittany L. Guyer.
S.M.
21
Van, Straten Celene Debra. "The construction of plant expression vectors for the introduction of leafroll disease resistance in grapevine." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51950.
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Thesis (MSc)--University of Stellenbosch, 2000.ENGLISH ABSTRACT: Grapevine leafroll is one of the most damaging viral diseases that affect many viticultural regions of the world. Numerous reports over the last few years have associated closterovirus-like particles with leafroll disease. To date, eight serologically distinct closteroviruses have been isolated from leafroll infected vines, of which grapevine leafroll associated closterovirus-3 (GLRaV-3) is the best characterized. Virus resistance in transgenic plants based on the expression of a virusderived gene is known as pathogen-derived resistance. The viral coat protein (CP) gene, which expresses a structural protein responsible for coating the virus particles, was used in the first demonstration of virus-derived resistance. Coat protein-mediated resistance is currently the most feasible and most widely used method to obtain virus resistance in crop plants. The CP gene of a South African isolate of GLRaV-3 infected grapevine was isolated, cloned and sequenced. Double stranded RNA (dsRNA) was extracted from GLRaV-3 infected material and a high molecular weight band, of -18 kb was identified from infected vines. The dsRNA was used as a template in a reverse transcription PCR together with GLRaV-3 CP gene specific primers for the amplification of the GLRaV-3 CP gene (975 bp). The GLRaV-3 CP gene was cloned into the pGem®-T Easy vector. Clones hosting the CP gene in the sense (pLR3CP+) and antisense (pLR3CP-) orientations respectively were obtained. The sequence obtained from these two clones showed 99.26 % similarity to the only other GLRaV-3 CP nucleotide sequence available. The GLRaV-3 CP gene was excised from pLR3CP+ and pLR3CP- and subcloned into a plant expression vector, pCAMBIA 3301 in the sense (pCamBLR3CP+) and antisense (pCamBLR3CP-) orientations respectively, therefore enabling sense and antisense gene expression in transgenic plants. The GLRaV-3 CP gene was also subcloned from pCamBLR3CP+ into another plant expression vector, pCAMBIA 2301 in the sense orientation and designated as pCVSLR3CP+. These three constructs were given to Dr. M. Vivier (Institute for Wine Biotechnology, Stellenbosch) for grapevine transformation experiments. Two of these constructs, pCamBLR3CP+ and pCamBLR3CP- as well as pCAMBIA 3301 were used to transform Nicotiana tabacum by Agrobacterium tumefaciens-mediated transformation. Plants were selected for their ability to withstand the herbicide, Basta. This resistance is due to the presence of a plant selectable marker gene on each of these constructs, known as the bar gene. PCR with GLRaV-3 CP gene specific primers showed no amplification of the GLRaV-3 CP gene in the plants transformed with pCamBLR3CP+ and pCamBLR3CP-. Southern blot analysis with the GLRaV-3 CP gene as hybridization probe showed no signal for these plants, thus confirming the PCR results. PCR with bar gene specific primers showed no amplification of the bar gene in the plants infected with pCAMBIA 3301. The plants transformed with pCamBLR3CP+ and pCamBLR3CP- were also screened for the presence of the bar gene. Three of the eight plants tested showed amplification of the -560 bp bar gene. This result suggests that these plants were transformed with pCAMBIA 3301 (vector without the ligated GLRaV-3 CP gene) and not pCamBLR3CP+ or pCamBLR3CP- as had been expected. This project provides preliminary work for the subsequent transformation of grapevine with the GLRaV-3 CP gene, in an attempt to impart virus resistance.
AFRIKAANSE OPSOMMING: Wingerd rolblaar is een van die mees beskadigende virale siektes wat baie wingerd areas in die wêreld aantas. In Aantal verslae oor die afgelope jare het closterovirus partikels met wingerd rolblaar geassosieer. Tot hede, is agt serologiese onderskeibare closterovirusse geïsoleer vanuit geaffekteerde wingerde, waarvan wingerd rolblaar geassosieerde closterovirus-3 (GLRaV-3) die beste gekarakteriseerd is. Virus bestandheid in transgeniese plante gebaseer op die uitdrukking van gene afkomstig vanaf virusse, staan bekend as patogeen-afgeleide weerstand. Die virale kapsule protein (CP) geen vervaardig In strukturele protein wat verantwoordelik is vir die bedekking van die virus partikel. Dié geen was gebruik in die eerste demonstrasie van patogeen-afgeleide weerstand. Kapsuul protein-bemiddelde weerstand is tans die mees praktiese en algemene gebruikte metode om virus weerstand in plant gewasse te verkry. Die CP geen van In Suid Afrikaanse isolaat van GLRaV-3 geïnfekteerde wingerde is geïsoleer, gekloneer en die volgorde is bepaal. Dubbelstring RNA (dsRNA) was uit GLRaV-3 geïnfekteerde materiaal geëkstraheer en In hoë molekulêre gewig band van -18 kb is geïdentifiseer. Die dsRNA is gebruik as In templaat vir In omgekeerde transkripsie PKR saam met GLRaV-3 CP geen spesifieke inleiers vir die amplifikasie van die GLRaV-3 CP geen (975 bp). Die GLRaV-3 CP geen is gekloneer in die pGem®-T Easy vektor. Klone met die CP geen in die sin (pLR3CP+) en teensin (pLR3CP-) oriëntasies respektiewelik is verkry. Die volgorde wat verkry is vanuit hierdie twee klone dui op In 99.26 % ooreenstemming met die enigste ander GLRaV-3 CP geen volgorde wat beskikbaar is. Die GLRaV-3 CP geen is uit pLR3CP+ en pLR3CP- gesny en is gesubkloneer in In plant ekspressie vektor, pCAMBIA 3301 in die sin (pCamBLR3CP+) en teensin (pCamBLR3CP-) oriëntasies respektiewelik, wat die sin en teensin geen ekspressie in transgeniese plante in staat stel. Die GLRaV-3 CP geen was ook gesubkloneer vanaf pCamBLR3CP+ in In ander plant ekspressie vektor, pCAMBIA 2301 in die sin orientasie en is as pCVSLR3CP+ benoem. Hierdie drie konstruksies is aan Dr. M. Vivier (Instituut vir Wyn Biotegnologie, Stellenbosch) gegee vir wingerd transformasie eksperimente. Twee van hierdie konstruksies, pCamBLR3CP+ en pCamBLR3CP- asook pCAMBIA 3301 is gebruik om Nicotiana tabacum deur middel van Agrobacterium tumefaciens-bemiddelde transformasie te transformeer. Plante is geselekteer vir hul vermoë om die onkruiddoder, Basta, te weerstaan. Die teenwoordigheid van die plant selekteerbare merker geen, bar, op elke konstruksie lui tot dié weerstand. Die plante wat getransformeer is met pCamBLR3CP+ en pCamBLR3CP- is deur PKR saam met die GLRaV-3 CP geen spesifieke inleiers getoets, en geen amplifikasie van die GLRaV-3 CP geen is getoon nie. Southern blot analise met die GLRaV-3 CP geen as hibridisasie peiler het geen sein gewys vir hierdie plante nie, wat die PKR resultate bevestig. Die plante wat getransformeer is met pCAMBIA 3301 is deur PKR saam met die bar geen spesifieke inleiers getoets, en geen amplifikasie van die bar geen is getoon nie. Die plante wat getransformeer is met pCamBLR3CP+ en pCamBLR3CP- is ook getoets vir die teenwoordigheid vir die bar geen. Drie van die agt plante wat getoets is, het amplifikasie van die -560 bp bar geen getoon. Hierdie onverwagte resultate stel voor dat dié plante met pCAMBIA 3301 (vektor sonder die geligeerde GLRaV-3 CP geen) en nie met pCamBLR3CP+ en pCamBLR3CPgetransformeer is nie. Hierdie projek verskaf voorlopige werk vir die daaropvolgende transformasie van wingerd met die GLRaV-3 CP geen in 'n poging om virus bestandheid te verskaf.
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Bland, Brian Wayne. "Design, construction, and evaluation of coal extraction pilot plant to manufacture coal based carbon pitch." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1683.
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Thesis (M.S.)--West Virginia University, 2000.Title from document title page. Document formatted into pages; contains xi, 144 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 91-93).
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Lyu, Kyu Yeol. "Internationalisation of Korean industry : a study of the performance of the plant and construction industry." Thesis, University of Manchester, 1989. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669224.
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Cuccurullo, Alessia. "EARTH STABILISATION BY PLANT-DERIVED UREASE ENZYME FOR BUILDING APPLICATIONS." Thesis, Pau, 2019. https://tel.archives-ouvertes.fr/tel-03179295.
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Cette étude se concentre sur les performances hygro-mécaniques de la terre crue compactée comme matériau de construction alternatif aux matériaux de construction classiques à forte empreinte énergétique. Les briques en terre ont été fabriquées en appliquant des pressions de compactage élevées (jusqu’à 100 MPa, d’où la dénomination d’hyper-compactage) pour augmenter la densité du matériau et ainsi obtenir des propriétés mécaniques similaires à celles des matériaux de construction traditionnels tels que les briques cuites, les blocs de béton et la terre stabilisée. Une vaste campagne expérimentale a été menée sur des échantillons constitués de différents mélanges hyper-compactés de terres à leur teneur en eau optimale respective. La rigidité et la résistance mécanique ont été mesurées par des essais de compression non confinés et triaxiaux, tandis que l’adsorption/désorption de vapeur a été évaluée par la valeur de MBV (Moisture Buffering Value). La durabilité à l'érosion hydrique a été étudiée en effectuant des tests de adsorption capillaire, d'immersion et de goutte-à-goutte conformément aux normes DIN 18945 (2013) et NZS 4298 (1998). Les résultats ont confirmé que l'hyper-compactage améliore les performances mécaniques de la terre crue compactée, mais qu'une augmentation sensible de l'humidité ambiante pouvait entraîner une réduction considérable de la résistance. Néanmoins, les tests de durabilité ont révélé que la terre compactée non stabilisée ne pouvait pas être utilisée pour la construction des parties de structures exposées aux intempéries naturelles en raison de sa sensibilité vis-à-vis de l’eau liquide. Les expériences ont démontré la dépendance de la résistance, de la rigidité, du comportement hydrique, de la sensibilité à l’eau liquide et de la durabilité à la taille des particules. En particulier, il a été observé qu'un mélange de terre à faible granulométrie et calibrées présentait des caractéristiques pour les propriétés susmentionnées supérieures à celle d’un sol à la granulométrie grossière et non maîtrisée. Un défi important a été l'amélioration de la durabilité de la terre crue à l'érosion hydrique en adoptant de techniques de stabilisation à faibles impacts environnementaux, ce qui a conduit à la mise au point d’une méthode originale de stabilisation basée sur l’utilisation d’extraits de plantes. Cette méthode était conforme à la précipitation de calcite induite par voie enzymatique via l'action de l'enzyme uréase pour catalyser l'hydrolyse de l'urée. Cette réaction produit des ions carbonates, qui réagissent ensuite avec les ions calcium du sol dissout dans l’eau interstitielle pour précipiter sous forme de carbonate de calcium, liant ainsi les particules du solThe present work investigates the hygro-mechanical performance of compacted earth as an alternative to conventional energy-intensive building materials. Earth bricks were manufactured by applying high compaction pressures up to 100 MPa (hyper-compaction) to increase the density of the earth and hence to obtain mechanical properties that are similar to those of traditional construction materials such as fired bricks, concrete blocks and stabilised earth. A wide campaign of laboratory tests was performed on samples made of different earth mixes that were hyper-compacted at their respective optimum water contents. Stiffness and strength were measured by unconfined and triaxial compression tests while vapour adsorption/desorption was assessed by measuring moisture buffering value (MBV). Durability to water erosion was also evaluated by performing suction, immersion and drip tests according to the norms DIN 18945 (2013) and NZS 4298 (1998), respectively. Results showed that hyper-compaction largely improved the mechanical performance of compacted earth but that a marked increase in ambient humidity could produce a considerable reduction of strength. Durability tests highlighted that the unstabilised compacted earth could not be employed for the construction of structures exposed to natural weathering. The experiments also demonstrated the dependency of strength, stiffness, moisture buffering capacity and water durability on particle grading. In particular, it was shown that a fine and well-graded earth mix exhibited higher levels of strength, stiffness, moisture buffering capacity and durability than a coarse and poorly-graded one. One important challenge lied in the improvement of the earth durability against water erosion by adopting novel stabilisation techniques, which led to the development of an original stabilisation method based on the utilisation of plant extracts. The method was consistent with the principles of Enzymatic Induced Calcite Precipitation (EICP), which utilises the action of the urease enzyme to catalyse the hydrolysis of urea. This reaction produces carbonate ions, which then react with the calcium ions dissolved in the pore water to produce the precipitation of calcium carbonate (i.e. calcite), thus binding the soil together. The novelty of the present work resides in the utilisation of crude plant-derived urease enzyme instead of pure reagent-grade products available from chemical suppliers, which reduces environmental and financial costs. In particular, the urease enzyme was obtained from a liquid soybeans extract, inside which the urea and calcium chloride were subsequently dissolved to induce the precipitation of calcite. Measurements of pH, electrical conductivity and precipitation ratio indicated that the optimum equimolar concentration of urea and calcium chloride (leading to the largest precipitation of calcite) was 2.5 mol/L. An experimental campaign was finally undertaken to implement the proposed bio-stabilisation method into the manufacture of compressed earth bricks. The most promising versions of the proposed bio-stabilisation method were also the object of further investigation to assess the hygro-mechanical behaviour of the stabilised earth by means of unconfined compression and moisture buffering value tests. The findings, although preliminary, suggested that a noticeable improvement of strength and water durability could be achieved by the proposed stabilisation protocol, in spite of the difficulty in replicating exactly quantitative results
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Robson, Julia. "The construction of an expression vector for the transformation of the grape chloroplast genome." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53621.
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Thesis (MSc)--University of Stellenbosch, 2003.ENGLISH ABSTRACT: The genetic information of plants is found in the nucleus, the mitochondria, and the plastids. The DNA of plastids is comprised of multiple copies of a double-stranded, circular, prokaryoticallyderived genome of -150 kb. The genome equivalents of plastid organelles in higher plant cells are an attractive target for genetic engineering as high protein expression levels are readily obtained due to the high genome copy number per organelle. The resultant proteins are contained within the plastid organelle and the corresponding transgenes are inherited, in most crop plants, uniparentally, preventing pollen transmission of DNA. Plastid transformation involves the uniform modification of all the plastid genome copies, a process facilitated by homologous recombination and the non-Mendelian segregation of plastids upon cell division. The plastid genomes are in a continuous state of inter- and intra-molecular exchange due to their common genetic complement. This enables the site-specific integration of any piece of DNA flanked by plastid targeting sequences, via homologous recombination. The attainment of homoplasmy, where all genomes are transformed, requires the inclusion of a plastid-specific selectable marker. Selective pressure favouring the propagation of the transformed genome copies, as well as the random segregation of plastids upon cell division, make it feasible to acquire uniformity and hence genetic stability. From this, a complete transplastomie line is obtained where all plastid genome copies present are transgenic, having eliminated all wild-type genome copies. The prokaryotic nature of the chloroplast genetic system enables expression of multiple proteins from polycistronic mRNAs, allowing the introduction of entire operons in a single transformation. Expression cassettes in vectors thus include single regulatory elements of plastid origin, and harbour genes encoding selectable and screenable markers, as well as one or more genes of interest. Each coding region is preceded by an appropriate translation control region to ensure efficient translation from the polycistronic mRNA. The function of a plastid transformation vector is to enable transfer and stable integration of foreign genes into the chloroplast genomes of higher plants. The expression vector constructed in this research is specific for the transformation of the grape chloroplast genome. Vitis vinifera L., from the family, Vitaceae, is the choice species for the production of wine and therefore our target for plastid transformation. All chloroplast derived regulatory elements and sequences included in the vector thus originated from this species.
AFRIKAANSE OPSOMMING: Die genetiese inligting van plante word gevind in die kern, die mitochondria, en die plastiede. Die DNA van plastiede bestaan uit veelvuldige kopieë van 'n ~ 150 kb dubbelstring, sirkulêre genoom van prokariotiese oorsprong. Die genoomekwivalente van plastiede in hoër plante is 'n aantreklike teiken vir genetiese manipulering, aangesien die hoë genoom kopiegetal per organel dit moontlik maak om gereeld hoë vlakke van proteïenuitdrukking te verkry. Hierdie proteïene word tot die plastied beperk, en die ooreenstemmende transgene word in die meeste plante sitoplasmies oorgeërf, sonder die oordrag van DNA deur die stuifmeel. Plastied transformasie behels die uniforme modifikasie van al die plastied genoomkopieë, 'n proses wat deur homoloë rekombinasie en die nie-Mendeliese segregasie van plastiede tydens seldeling gefasiliteer word. As gevolg van die gemeenskaplike genetiese komplement, vind aanhoudende interen intra-molekulêre uitruiling van plastiedgenome plaas. Dit maak die setel-spesifieke integrasie, via homoloë rekombinasie, van enige stuk DNA wat deur plastied teikenvolgordes begrens word, moontlik. Vir die verkrying van homoplasmie, waar alle genome getransformeer is, word die insluiting van 'n plastiedspesifieke selekteerbare merker benodig. Seleksiedruk wat die vermeerdering van die getransformeerde genoomkopieë bevoordeel, en die lukrake segregasie van plastiede tydens seldeling, maak dit moontlik om genetiese stabiliteit en uniformiteit van die genoom te verkry. Dit kan op sy beurt tot die verkryging van 'n volledige transplastomiese lyn lei, waar alle aanwesige plastiedgenome transgenies is, en wilde tipe genoomkopieë geëlimineer is. Die prokariotiese aard van die chloroplas genetiese sisteem maak die uitdrukking van veelvuldige proteïene vanaf polisistroniese mRNAs moontlik, wat die toevoeging van volledige operons in 'n enkele transformasie toelaat. Uitdrukkingskassette in vektore bevat dus enkel regulatoriese elemente van plastied oorsprong, gene wat kodeer vir selekteerbare en sifbare merkers, asook een of meer gene van belang (teikengene). Voor elke koderingsstreek, is daar ook 'n toepaslike translasie beheerstreek om doeltreffende translasie vanaf die polisistroniese mRNA te verseker. Die funksie van 'n plastied transformasie vektor is om die oordrag en stabiele integrasie van transgene in chloroplasgenome van hoër plante moontlik te maak. Die uitdrukkingsvektor wat in hierdie studie gekonstrueer is, is spesifiek vir die transformasie van die druif chloroplasgenoom. Vitis vinifera L., van die familie Vitaceae, is die voorkeur species vir die produksie van wyn, en daarom die teiken vir plastied transformasie. Alle chloroplast-afgeleide regulatoriese elemente en volgordes wat in hierdie vektor ingesluit is, het huloorsprong vanaf VUis vinifera L.
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Laborel-Preneron, Aurélie. "Formulation and characterization of unfired clay bricks with plant aggregates." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30140.
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La construction est l'un des secteurs de l'industrie les plus polluants. C'est la raison pour laquelle développer l'usage de matériaux de construction durables est un intérêt majeur. La terre crue est de plus en plus étudiée en tant que matériau de construction pour son faible impact environnemental, son abondance ou ses capacités à réguler l'humidité intérieure, améliorant ainsi le confort de l'occupant. Pour optimiser certaines de ses performances, des fibres ou granulats végétaux sont incorporés à la terre depuis des millénaires. Toutefois, les études scientifiques n'ont débuté qu'il y a une trentaine d'années, laissant une marge importante de compréhension du matériau. Actuellement, l'ajout de matière végétale peut s'effectuer par le biais de la valorisation d'agroressources, qui permet par ailleurs de piéger du dioxyde de carbone au sein des briques. Cette thèse, qui s'inscrit dans le cadre du projet Bioterra financé par l'Agence Nationale de la Recherche (ANR), a pour objectif de contribuer au développement d'un matériau à base de terre crue et de granulats végétaux, pour une utilisation sous forme de briques. Après une caractérisation approfondie de différentes ressources végétales (paille d'orge, chènevotte et rafle de maïs), une approche comparative des propriétés d'usage et de la durabilité des matériaux composites est réalisée. Une étude sur la disponibilité des bio-ressources en France a montré que les coproduits de l'agriculture utilisés dans ce travail de recherche sont disponibles en quantités importantes, bien que leur utilisation pour l'alimentation humaine ou animale soit prioritaire. Les résultats des essais expérimentaux ont montré que les résistances mécaniques sont diminuées avec l'ajout de végétaux, mais que la ductilité est améliorée. La paille, grâce à sa forme allongée, donne toutefois de meilleurs résultats que les autres agroressources. En ce qui concerne les propriétés hygrothermiques, la conductivité thermique est améliorée et la capacité de sorption de vapeur est légèrement augmentée. Toutefois, la terre seule étant très perméable à l'eau, l'ajout de particules végétales n'a pas d'effet bénéfique sur la perméabilité apparente des composites à la vapeur d'eau. Finalement, les granulats végétaux améliorent certains critères de durabilité comme la résistance à l'impact ou l'érosion à l'eau, mais limitent la résistance à l'abrasion. Vis-à-vis de la résistance au feu, les bio-composites, bien que contenant une quantité importante de matière ligno-cellulosique, sont toujours incombustibles. Ils sont toutefois transformés avec la cuisson de la terre et la consumation des végétaux. Enfin, l'étude de la prolifération de micro-organismes a abouti à la mise en place d'une méthodologie expérimentale. L'incorporation de paille semble faciliter l'apparition de moisissures par rapport à la terre seule. Néanmoins, la prolifération apparaît uniquement dans des conditions optimales de 30°C et 93% d'humidité relative après inoculation de souche d'Aspergillus brasiliensis. L'addition de différentes ressources végétales dans une matrice de terre améliorera donc certaines propriétés d'usage mais en dégradera d'autres. La formulation du matériau composite (nature et dosage en granulats végétaux notamment) sera donc conditionnée par sa destination dans le bâtiment. Un compromis devra être trouvé entre les différentes propriétésConstruction is one of the most polluting sectors of industry, and this is why developing sustainable building materials is of world-wide interest. Earth is being increasingly studied as a building material because of its low environmental impact and its abilities to regulate indoor moisture and to improve the building occupants' comfort. Plant aggregates and fibers have been incorporated into the earth matrix for thousands of years to enhance its performance, but scientific studies began quite recently. Nowadays, the addition of renewable resources can be achieved with agricultural by-products, thus allowing carbon dioxide to be captured. As part of the Bioterra project funded by the French National Research Agency (ANR), this thesis has the objective of contributing to the development of earth-based materials containing plant aggregates that can be used in bricks. After an extensive characterization of the different plant resources, namely barley straw, hemp shiv and corn cob, a comparative study of the use and durability properties of the composite materials is made. A survey of the production and use of bio-resources in France showed good availability of the resources studied in the present research, although they are primarily used as human food and animal litter. In the experimental tests, a decrease of the mechanical strength was observed with the addition of plant aggregates. However, the ductility of the bio-composites increased. Thanks to its elongated shape, straw is the plant aggregate that gives the best results. Concerning hygrothermal properties, thermal conductivity is reduced and the vapor sorption capacity is slightly increased. Nevertheless, earth alone is very permeable. The addition of plant aggregates thus brings no benefit concerning the apparent water vapor permeability. Finally, plant aggregates improve some durability criteria, such as impact or erosion resistance, but limit abrasion resistance. With regard to fire, bio-composites are still not combustible, even if they contain a significant quantity of lignocellulosic matter. They are, however, transformed with firing, when the earth is fired and the plant material smolder. Lastly, the study on microbial growth contributed to the development of an experimental methodology. The incorporation of straw seems to facilitate mold growth in comparison with earth alone. However, proliferation appears only in the worst conditions: for material subjected to a temperature of 30°C and a relative humidity of 93%, after inoculation with Aspergillus brasiliensis strain. To summarize, the addition of different plant aggregates in an earth matrix improves some properties but deteriorates others. The formulation of a composite material (particularly the nature and the content of the plant aggregate) will thus depend on its intended use in the building. Therefore, a compromise has to be found among the different properties
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Spillane, John Peter. "Challenges and strategies for confined site construction : the case of personnel, plant and material management (PPMM)." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602932.
Full textAbstract:
The construction industry is in a point of transition. With the continued onset of global urban expansion and renewal, construction sites where space is a finite, vital resource requiring effective management, are now the norm within the industry. In order to effectively manage this limited space and the key resources within, it is essential to identify the issues and the strategies, to be adopted. The objective of this research and thesis is to identify, clarify and tabulate the various personnel, plant and material management factors and their resulting effects on confined site construction. This is achieved by means of interviews, case studies, focus group analysis, linked to an industry survey. Through the use of cognitive mapping, means testing, regression modelling, factor analysis, system dynamics and structural equation modelling of the collaborated data, the personnel, plant and material knowledge areas are highlighted along with their associated attributes. Results show that the top three personnel management issues and strategies are "Adverse Health & Safety Environment", "Restricted Space Hinders Productivity", "Challenging Surrounding Environment" and "Effective Communication & Coordination, "Implement Health & Safety Protocol", "Early Contractor Involvement" respectively. Contrary to this, research has documented that the top three critical factors in the management of plant and materials, both with respect to issues and strategi.es are; "Safely Store Plant & Materials", "Contractor Spatial Conflict", "Increased Management Facilitation" and "Efficient Delivery Requirements", "Implement Site Safety Management Plans" "Effective Stakeholder Communication" respectively. Finally, the top three strategies in the management of the external environment are; "Regular External Stakeholder Communication", "Reduce Infrastructure Congestion" and "Reduce Visual/Functional Impact". It is highlighted that through effective management of the identified principle knowledge areas identified coupled with implementing the various strategies highlighted; successful management of a confined construction site can be achieved.
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Ting, Ngoot Chin. "Construction of high density genetic linkage maps and fine mapping of quantitative trait loci associated with yield components and fatty acid composition in oil palm." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52227/.
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The African oil palm (Elaeis guineensis Jacq.) is a highly valued oil producing perennial crop with a productive lifespan of about 25 years. Although benefiting from a long productivity period, oil palm genetic improvement is a slow and tedious process which requires between 10 to 12 years to complete one selection cycle. As such, marker-assisted selection (MAS) is an invaluable tool for yield improvement in oil palm. In particular, MAS could be used to facilitate efforts to increase the unsaturated fatty acid content of palm oil by introgression of desired alleles from the American species, E. oleifera which produces highly unsaturated oil. In order to help achieve this, high density genetic linkage maps were constructed for a commercial Deli dura (maternal) x Yangambi pisifera (paternal) breeding population (P2) and a Colombian E. oleifera (maternal) x Nigerian E. guineensis (paternal) interspecific hybrid population (OxG). The P2 and OxG mapping populations were screened with approximately 700 oil palm SSR primer-pairs and genotyped with a 4.5K customized oil palm SNP array to identify informative markers. The P2 and OxG populations consisted of 87 and 108 palms, respectively. Genetic linkage maps were first constructed for the individual parental palms of the mapping populations and followed by integration of the two parental maps. A P2 integrated map with 1,331 markers spanning 1,867 cM over the 16 linkage groups was constructed, representing the 16 chromosome pairs in oil palm. This study for the first time reports the genetic map for the Colombian E. oleifera, although the map only comprises of ten linkage groups with 65 markers spanning 471 cM. The Colombian E. oleifera map was also successfully integrated with the Nigerian E. guineensis parental map, resulting in a partial integrated map for OxG. The genetic maps and the available phenotypic data were successfully used to identify 22 quantitative trait loci (QTLs) associated with various yield components (YC) in the P2 population and 12 QTLs for fatty acid composition (FAC) in the OxG population. The QTLs identified for FAC include the total unsaturation levels via iodine value (IV), myristic (C14:0), palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), oleic (C18:1) and linoleic (C18:2) acids. On the P2 integrated map, QTLs for YC were associated with mean bunch number (MBN), mean fruit weight (MFW), oil/bunch ratio (OTB), oil/wet mesocarp ratio (OTWP), oil/dry mesocarp ratio (OTDP), mean mesocarp weight (MPW), wet mesocarp weight (WPWT), kernel yield (KY), mean kernel weight (MKW), mean shell weight (MSW), shell to fruit (STF), total oil (TOT), oil yield (OY) and dry mesocarp weight (DPWT). The closely linked markers demonstrated significant allelic effects associated with the YC and FAC phenotypes analysed. The genetic effects (estimated by G Model) for the identified QTLs can be ranked from high for C16:0, C18:1 and IV (ranging from 2.16 – 2.46) to medium for OTWP, DPWT, MPW, WPWT, OTB, MFW, OTDP, MBN and STF (0.50 – 2.14) and low (< 0.5) for KY, MKW, MSW, C18:2, C18:0, C16:1 and C14:0. The three major QTLs for C16:0, C18:1 and IV were also successfully cross-mapped on two interspecific BC2 populations, which adds confidence on the association of the markers with the traits concerned and reflecting their potential utility in a MAS programme. This study also identified candidate regulatory genes and transcription factors (TFs) within the QTL confidence intervals by aligning to the oil palm (EG5) genome build. A set of five candidate genes (HIBCH, PATE/FATB, BASS2, LACS4 and DGAT1) and a TF (WRI1) were identified within the QTL confidence interval associated with genetic effects for C16:0, C18:1, C14:0, C18:0 and IV in LGOT1, which was supported by the significant differential expression patterns observed for the candidate genes and TF in RNA sequencing (RNA-seq) and real-time PCR (qRT-PCR) experiments. The RNA-seq and qRT-PCR experiments included palms from OxG and two independent interspecific backcross populations. Clear differential expression patterns were observed for some of the genes and their putative isoforms, which requires further validation in future studies. The high-density SNP and SSR-based genetic maps developed in this study have greatly improved marker density and genome coverage in comparison with the first reference map based on AFLP, RFLP and SSR markers. The improved maps with reduced gap between markers were aligned to the EG5 genome build, which proved useful for mining of candidate genes associated with the QTLs from the targeted regions. The closely linked markers and candidate genes associated with FAC and YC provide a good starting point for other genetic improvement studies in oil palm including whole genome association mapping studies. The candidate gene approach as used in the present study is useful for identifying the potential causal genes linked to QTLs. Finally, the markers closely linked to specific traits, specially IV, C16:0 and C18:1, MFW, MPW and OTDP have great potential and should be prioritized for further validation in the effort towards their adoption for MAS to introduce greater unsaturation and improve oil yield in commercial oil palm.
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Wang, Eu Sheng. "Construction and molecular characterisation of an improved chloroplast transformation vector system as a versatile delivery and expression platform for in-vitro propagated Nicotiana benthamiana." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/30486/.
Full textAbstract:
The objective of this study is to develop a versatile vector system for the delivery and expression of transgenes in the chloroplast genome of N. benthamiana. The successful advent of such a system would vastly streamline the construction process of chloroplast transformation vectors for the expression of recombinant proteins, such as vaccine candidates, in the chloroplasts of N. benthamiana. Transgenes targeted to the chloroplasts of higher plants are expected to be expressed at considerably higher levels as compared to nuclear expression, resulting in more significant accumulation of recombinant proteins. In this study, a 2-part chloroplast transformation vector system was developed and two new GFP vector prototypes, pEXPR-G and pEXPR-UG were generated for preliminary evaluation of functionality. The aadA and GFP expression cassettes of pEXPR-G and pEXPR-UG were evaluated in E. coli prior to actual delivery into N. benthamiana via particle bombardment. Particle bombardment parameters were optimised with particular emphasis on minimising excessive damage to the target tissue in order to facilitate the recovery of antibiotic resistant shoots and calli following transformation. To further evaluate the versatility of the developed system for the expression of vaccine antigens, recombinant vectors, pEXPR-HA and pEXPR-NA were constructed for the delivery of hemagglutinin (HA) and neuraminidase (NA) genes of avian influenza strain H5N1 into the chloroplast genome of N. benthamiana. Experimental results indicated that pEXPR-G and pEXPR-UG were fundamentally functional in E. coli and both the aadA and GFP expression cassettes were active, allowing the bacteria to withstand 500mg/l spectinomycin and express the transgene of interest at the protein level. Similar results were also observed in transplastomic N. benthamiana transformed with pEXPR-UG and pEXPR-NA. In essence, the developed 2-part chloroplast transformation vector system was found to be highly versatile and could be conveniently applied for the construction of transformation vectors for the delivery and expression of HA and NA in the chloroplast of N. benthamiana.
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Islam, Muhammad Saiful. "Modelling cost overrun risks in power plant projects." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/125508/1/Muhammad%20Saiful_Islam_Thesis.pdf.
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Cost overruns in power plant projects frequently occur, and this very alarming phenomenon requires proper risk assessment and management in the early phase of power plant project development. A modified fuzzy group decision-making approach (FGDMA) was developed and the critical risks in different phases of thermal power plant project were identified. Further, a novel fuzzy canonical model (FCM) was developed and the complex causal risk-networks were modelled to understand the root causes of cost overruns. The benefits of this research to practitioners are such that it provides greater understanding of the risks involved in power plant projects and sound analytical methods to asses the risks.
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Caraballo, Ginna. "An Arduino Based Control System for a Brackish Water Desalination Plant." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804931/.
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Water scarcity for agriculture is one of the most important challenges to improve food security worldwide. In this thesis we study the potential to develop a low-cost controller for a small scale brackish desalination plant that consists of proven water treatment technologies, reverse osmosis, cation exchange, and nanofiltration to treat groundwater into two final products: drinking water and irrigation water. The plant is powered by a combination of wind and solar power systems. The low-cost controller uses Arduino Mega, and Arduino DUE, which consist of ATmega2560 and Atmel SAM3X8E ARM Cortex-M3 CPU microcontrollers. These are widely used systems characterized for good performance and low cost. However, Arduino also requires drivers and interfaces to allow the control and monitoring of sensors and actuators. The thesis explains the process, as well as the hardware and software implemented.
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Garbez, Morgan. "Construction de l'architecture et des composantes visuelles d'un buisson ligneux d'ornement : le rosier." Thesis, Rennes, Agrocampus Ouest, 2016. http://www.theses.fr/2016NSARB287/document.
Full textAbstract:
Les buissons ligneux forment un modèle végétal clé pour répondreaux préoccupations sociales et environnementales.Usuellement transposé sur le modèle arborescent, leur développementarchitectural reste encore peu compris et peu étudiéau regard de leur qualité visuelle. Pour cerner et anticiper cesattentes, une méthodologie pluridisciplinaire visant le managementde la qualité visuelle des plantes d’ornement est proposée.Elle intègre l’architecture des plantes avec sa plasticité phénotypiqueet la perception de leur apparence visuelle. Sur un rosierbuisson : Rosa hybrida L. ‘Radrazz’, l’étude montre commentl’analyse architecturale avec ses outils de modélisation, l’analysesensorielle et d’image peuvent former un cadre scientifi quecohérent visant cet objectif, et transposable à d’autres taxons.Sur rosiers virtuels, et réels exposés à un gradient lumineux, l’apparencevisuelle peut être caractérisée objectivement au moyend’épreuves sensorielles sur vidéode plante en rotation à différentsstades. La vidéo permet aux sujets une meilleure représentationmentale de la plante en 3D, et ainsi une descriptionplus complète et fi able de l’apparence visuelle ; puis de prédirecette description en intégrant statistiquement l’analyse d’imagede plusieurs facettes de la plante. Certaines variables architecturalespertinentes, et de nombreuses équivalentes, potentiellementintéressantes pour étudier le développement des buissonsau cours de leur cycle de vie, permettent de prédire voire d’expliquerl’élaboration des composantes visuelles d’un cultivarShrubs form a key plant model to meet social and environmentalconcerns. Usually transposed on the tree model, their architecturaldevelopment is still ill-known and understudied to address visualquality. To identify and anticipate such expectations, the visual qualitymanagement of ornamental plants through a multidisciplinarymethodology is proposed. It includes architecture of the plants withits phenotypic plasticity and their visual appearance perception.On a rose bush: Rosa hybrida L. ‘Radrazz’, this work shows howarchitectural analysis with its modeling tools, sensory evaluationand image analysis can form a coherent scientifi c framework toface up to such a purpose, and be transposed for other taxa. Onvirtual rose bushes, and real ones exposed to a light gradient, thevisual appearance can be characterized objectively by means ofsensory tests using rotating plant video at different stages.Thevideo stand enables a better mental representation of the plant 3Dby the subjects, leading to a more complete and reliable descriptionof the plant visual appearance; then to predict this descriptionthrough statistically integrated image analysis of multiple plantfacets. Some relevant architectural variables, with numerousequivalents, potentially interesting to study the architecturaldevelopment of bushes during their life cycle, enabled to predicteven explain how visual components were built for a cultivar. Fora better market responsiveness, this work lays the foundationfor drafting interactive decision and innovation support tools forb
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Coenen, Lance Gregory 1959. "MULTI-STEP COULOSTATIC IMPULSE GENERATOR AND POTENTIAL MONITORING SYSTEM." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276529.
Full textAbstract:
A Coulostatic Impulse Generator (CIG) is an electronic device that transfers electrical charge to and from a pair of electrodes inserted in plant tissue. Six discrete charge transfers can be implemented in any desired sequence. The major purpose of the CIG is to determine the electrochemical constituents of the plant apoplast electrolyte. The objective of this thesis is threefold: (1) to design, construct and test the supervisory circuitry of the CIG, (2) to design, construct and test the interface between the NEC portable computer and the CIG, (3) to generate utility software to control each circuit board in the system. To handle the extreme difference in the timing of the charge transfer (microseconds) and the subsequent plant response a three step timing sequence is employed which permits an independent range of sample times and sample numbers. Data acquired is first stored in RAM in the computer within the CIG and then transferred to the external computer. (Abstract shortened with permission of author.)
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Jen, Yin-Yen, and 任蔭延. "A Case Study of the Plant Construction Project." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/64482992838643481623.
Full textAbstract:
碩士國立臺灣科技大學
工業管理系
100
This case is a description of the process of a plant construction and the situations that a project manager may confront during it. Under the affects of various social environment and organization, the members of the Changhua Office have had to worry themselves with the uncertain future of their employment period. Given the more than three years of hard work, the company had come to admire the performance and accomplishments of the Department. Due to the variation of the external environment, the company need to improve the capacity issues for the production, the ideal to build a plant has finally come true. It is a very valuable experience for anyone to be a project manager assigned the responsibility for a plant construction. From the perspective of a third party, a project Manager seems to hold a high position, responsible for all resources, and ultimately holding an abundance of power. However, a project manager should consider thoroughly whether he could do well on the project planning, organization, leadership and control during the plant construction after he decide to accept the assignment. The project manager is able to deal with a group of people with different professional skills and live with different life culture and is able to organize them into a whole team to achieve a single goal. To reconcile the conflict between people in team and make them work together as a team through the skill of the constant communication. While the conflicting storm is keeping come in, the project manager should make the proper decision when it’s needed and leads the team come through the clutters and difficulties and conquer the risks ahead. The most important mission and responsibility for a project manager is to ensure the project runs to maximum effect under the limitations of time, budget and resources. However, one can only fully understand this when you actually undertake such a large responsibility.
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Lin, Ming-Chang, and 林明政. "Refinery/Petro-Chemical Plant Construction Site-Safety Research." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/e36994.
Full textAbstract:
碩士國立虎尾科技大學
工業工程與管理研究所
99
In order to face global market environment, the domestic oil refining/petrochemical manufacturers need globalization as well as keep roots in Taiwan. In past decade, there are several large refining/petrochemical construction projects in Taiwan. Therefore, construction engineering company must actively cultivate global logistics, use modern information and technology integration-driven plant construction mechanisms, and strengthen its core competencies of plant construction in order to compete with other international construction companies. Construction site safety has become a very important issue in recent years. However, the reasons of incident occurrence are often overlooked and result in the loss of life and property. Hence, construction engineering company must develop a site safety management system to effectively reduce the risk of accidents. This study selects people who are working in relevant area of site safety in the domestic refinery/petrochemical construction projects as the research object. A survey method is used in this study to investigate their point of view in the following of dimensions: “personal safety awareness”, “safety culture and management”, “workplace facility and environment”. The result shows that most of respondents are highly agreeablethe with the questions in the above three dimensions.
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"Construction and characterization of transgenic Arabidopsis thaliana with altered sink-source relationship." 2003. http://library.cuhk.edu.hk/record=b5891497.
Full textAbstract:
Piu Wong.Thesis submitted in: July 2002.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.
Includes bibliographical references (leaves 126-146).
Abstracts in English and Chinese.
Thesis committee --- p.i
Statement --- p.ii
Abstract --- p.iii
Acknowledgement --- p.viii
General abbreviations --- p.xi
Abbreviations of chemicals --- p.xiii
List of figures --- p.xv
List of Tables --- p.xvii
Table of contents --- p.xviii
Chapter 1 --- Literature review
Chapter 1.1 --- Overviews --- p.1
Chapter 1.1.1 --- Nutritional and economical significance of aspartate family amino acidsin human and animal nutrition --- p.1
Chapter 1.1.2 --- Synthesis of aspartate family amino acids in plants --- p.2
Chapter 1.2 --- Regulation of aspartate family amino acids between sink and source organs --- p.6
Chapter 1.2.1 --- Co-ordination of genes/enzymes involved in amide amino acid metabolism to channel aspartate for aspartate family amino acid synthesis --- p.6
Chapter 1.2.2 --- Sink-source regulation as a general mechanism in plants --- p.9
Chapter 1.3 --- Source regulation at free amino acid level --- p.11
Chapter 1.3.1 --- Regulation of free methionine synthesis --- p.11
Chapter 1.3.1.1 --- Competition for OPHS between TS and CGS --- p.11
Chapter 1.3.1.2 --- Turnover of CGS mRNA --- p.12
Chapter 1.3.1.3 --- Post-translational regulation of CGS enzyme --- p.13
Chapter 1.3.2 --- Regulation of lysine synthesis and catabolism --- p.15
Chapter 1.3.2.1 --- Feedback regulation loop --- p.15
Chapter 1.3.2.2 --- Possible intracellular compartmentalization of enzymes and metabolitesin regulating lysine level --- p.21
Chapter 1.3.2.3 --- Co-ordination of gene/enzyme in aspartate kinase pathway in regulating flux to Lys --- p.21
Chapter 1.3.3 --- Significance of lysine catabolism in mammals and plants --- p.24
Chapter 1.3.3.1 --- Complex developmental regulation and stress response of LKR/SDH gene expression --- p.28
Chapter 1.3.3.2 --- Regulation through a novel composite locus LKR-SDH --- p.28
Chapter 1.3.3.3 --- Post-translational control of LKR-SDH activity --- p.31
Chapter 1.3.3.4 --- Implication of two metabolic flux in Lys catabolism --- p.34
Chapter 1.4 --- Source (free lysine) enhancement in transgenic plants --- p.36
Chapter 1.4.1 --- Expression of feedback insensitive enzyme in transgenic plants to enhance free lysine supply in transgenic plant --- p.36
Chapter 1.4.2 --- Reducing or eliminating lysine catabolism to enhance free lysine poolin transgenic plants --- p.40
Chapter 1.5 --- Sink regulation --- p.41
Chapter 1.5.1 --- Engineering transgenic plants through expression of seed storage protein (sink) --- p.41
Chapter 1.5.2 --- "Dynamic relationship between sink protein, nitrogen metabolism and sulphur metabolism" --- p.45
Chapter 1.6 --- Transgenic plants with improved source or enhanced sinks related to aspartate family amino acids available for our research --- p.47
Chapter 1.6.1 --- Enhanced source: ASN1 over-expressers --- p.47
Chapter 1.6.2 --- Enhanced source: metL transgenic plants --- p.47
Chapter 1.6.3 --- Altered source: RNAi line --- p.47
Chapter 1.6.4 --- Effective sink: LRP transgenic plants --- p.48
Chapter 1.7 --- Overall concept of this study --- p.48
Chapter 2 --- Materials and methods --- p.50
Chapter 2.1 --- Materials and growth conditions --- p.50
Chapter 2.1.1 --- "Plants, bacterial strains and vectors" --- p.50
Chapter 2.1.2 --- Chemicals and reagents used --- p.53
Chapter 2.1.3 --- Solutions used --- p.53
Chapter 2.1.4 --- Commercial kits used --- p.53
Chapter 2.1.5 --- Equipment and facilities used --- p.53
Chapter 2.1.6 --- Growth condition --- p.53
Chapter 2.1.7 --- Tagging of A. thaliana siliques of different developmental stage --- p.54
Chapter 2.2 --- Methods --- p.55
Chapter 2.2.1 --- Expression pattern analysis --- p.55
Chapter 2.2.1.1 --- RNA extraction --- p.55
Chapter 2.2.1.2 --- Generation of single-stranded DIG-labelled ASN1 DNA probes --- p.55
Chapter 2.2.1.3 --- Testing the concentration of DIG-labelled probes --- p.56
Chapter 2.2.1.4 --- Northern blot --- p.57
Chapter 2.2.1.5 --- Hybridization --- p.58
Chapter 2.2.1.6 --- Stringency washes --- p.58
Chapter 2.2.1.7 --- Chemiluminescent detection --- p.58
Chapter 2.2.2 --- Amino acid analysis and nitrogen determination --- p.60
Chapter 2.2.2.1 --- Free amino acids in A. thaliana --- p.60
Chapter 2.2.2.2 --- Phloem exudates collection from A. thaliana --- p.60
Chapter 2.2.2.3 --- Soluble Protein quantitation --- p.61
Chapter 2.2.2.4 --- Extraction of salt and water soluble protein from A. thaliana seeds --- p.61
Chapter 2.2.2.5 --- Purification and amino acid analysis of protein extracts from A. thaliana seeds --- p.62
Chapter 2.2.2.6 --- Total amino acid determination in mature dry seeds --- p.63
Chapter 2.2.3 --- Generation of crossing progenies --- p.64
Chapter 2.2.3.1 --- Artificial crossing of A. thaliana --- p.64
Chapter 2.2.3.2 --- CTAB extraction of genomic DNA --- p.64
Chapter 2.2.3.3 --- PCR screening for successful crossing --- p.65
Chapter 2.2.4 --- Generation of transgenic plants --- p.67
Chapter 2.2.4.1 --- Cloning of E.coli dapA gene --- p.67
Chapter 2.2.4.2 --- Preparation of recombinant plasmid --- p.68
Chapter 2.2.4.3 --- Gene sequencing --- p.68
Chapter 2.2.4.4 --- Homology search of differentially expressed genes --- p.69
Chapter 2.2.4.5 --- Construction of chimeric dapA genes (TP-Phas-dapA) --- p.69
Chapter 2.2.4.6 --- Transformation of electro-competent Agrobacterium cell --- p.73
Chapter 2.2.4.7 --- Transformation of A. thaliana through vacuum infiltration --- p.73
Chapter 2.2.4.8 --- Selection of hemizygous and homozygous transgenic plants --- p.74
Chapter 2.2.4.9 --- Expression analysis of homozygous LRP/dapA transgenic plants --- p.75
Chapter 3 --- Results --- p.77
Chapter 3.1 --- Characterization of ASN1 over-expressers --- p.77
Chapter 3.1.1 --- Overexpression of the ASN1 gene enhances the sink-source relationship of asparagine transport under regular daylight cycle --- p.88
Chapter 3.1.2 --- Spatial distribution of total free amino acids under normal daylight cycle --- p.88
Chapter 3.1.3 --- Over-expression of the ASN1 gene affects free amino acid level quantitatively under normal daylight cycle --- p.89
Chapter 3.1.4 --- Over-expression of the ASN1 gene affects composition of total amino acid under normal daylight cycle --- p.89
Chapter 3.2 --- Construction of dapA transgenic Arabidopsis --- p.91
Chapter 3.2.1 --- Construction of chimeric gene for expression of the dapA gene --- p.91
Chapter 3.2.2 --- Transformation of p1300/Phas-dapA into Arabidopsis and selection of homozygous progenies --- p.91
Chapter 3.3 --- Generation of transgenic plants with altered sink-source relationship through crossing and in-planta transformation --- p.96
Chapter 3.3.1 --- Rationale in methods for generating transgenic plants with different combination of sources and sinks --- p.96
Chapter 3.3.2 --- Screening for double homozygous progenies through crossing --- p.98
Chapter 3.3.3 --- Screening for F1 progenies of successful crossing --- p.100
Chapter 3.3.4 --- Selection of homozygous crossing progenies --- p.102
Chapter 3.3.5 --- Screening for homozygous dapA/LRP transgenic plants --- p.104
Chapter 3.4 --- Amino acid composition analysis --- p.109
Chapter 3.4.1 --- The change of aspartate family amino acids in mature seeds of transgenic plants with altered sources --- p.113
Chapter 3.4.2 --- The change of aspartate family amino acids in mature seeds of transgenic plants with improved sink --- p.114
Chapter 3.4.3 --- The change of aspartate family amino acids in mature seeds of transgenic plants with improved sink --- p.115
Chapter 4. --- Discussion
Chapter 4.1 --- Characterization of ASN1 over-expressers --- p.116
Chapter 4.1.1 --- Possible regulation of ASN1 mRNA stability through level of asparagine --- p.117
Chapter 4.1.2 --- Over-expression of ASN1 gene may improve nitrogen remobilisation from source to sink tissues --- p.118
Chapter 4.1.3 --- Over-expression of ASN1 gene has modified the composition of amino acidsin sink organs --- p.119
Chapter 4.2 --- ASN1 RNAi transgenic plants increases the relative contents of lysine in the seeds --- p.122
Chapter 4.2.1 --- Role of ASN1 in supplying or competing aspartate in developing seeds --- p.122
Chapter 4.2.2 --- Possible role of glutamate receptor --- p.123
Chapter 4.3 --- Lysine catabolism may strictly control the level of lysine --- p.123
Chapter 4.3.1 --- Possible role of lysine-tRNA in protein synthesis --- p.124
Chapter 5. --- Conclusion and prospective --- p.125
References --- p.126
Appendix --- p.147
37
Pang, Ching, and 龎靖. "Construction of a dual inducible plant gene expression system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/05363865554310910378.
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Yang, Li-Fen, and 楊麗芬. "Evaluation of Integrated Gasification Combined Cycle Power Plant Construction." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/39q33j.
Full textAbstract:
碩士國立臺北科技大學
工業工程與管理研究所
97
Gasified technology has been widely valued from 1990. And it has been a trend of development from 2005 to union electricity generation and the multiplex application. Coal Gasification Technology is applied widely. It may not only be used for making Synthesis Natural Gas(SNG), the ammonia(NH3) and Synthetic Gas for the tradition chemical product and the fuel, but also may couple Integrated Gasification Combined cycles (IGCC) directly to obtain generating system of the high fever efficiency. It has lower environmental pollution than the traditional Coal Generating set does. The lowest expectation for newly Gas Clean Generate Electric Power factories is that Gas Clean Generate Electric Power emphasizes the high efficiency more than low pollution. According to the present Gas Clean Generate Electric Power development situation, it mainly has Integrated Gasification Combined cycles (IGCC), Pressure Fluidized Bed Combustion (PFBC), Supercritical Pulverized Coal (PC) and so on, in which IGCC technology is the most remarkable no matter in the technical maturation, the energy efficiency, and the environmental protection. It also has gradually become most useful new electricity generation technology. Taking advantage of the coal to transform into the pure energy has been striven to be the first important development topic for the advanced countries invested large research and development resources. Because Integrated Gasification Combined Cycles (IGCC) has the superiority of the energy efficiency promotion, the high potential and the remarkable environmental protection, it will be the trend for the future and be conducive to improve the high carbon electricity generation structure in our country at present. However, there are less pure IGCC plans at present in our country. This research focused on extracting the main decision factors and developing the hierarchy in the decision making of building up an IGCC factory which leads to the reduction of investment cost, construction period, operation and maintenance cost. It will be able to conform to the law of development documents as well. Our research established the evaluation hierarchy and the decision model with rational index and weightings of building up an IGCC factory for the electrical industry. Through the proposed AHP hierarchy, a better development of electrical industry is expected.
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Navaratne, Ayanthi N. "Construction and characterization of novel amperometric plant tissue-based biosensors." Thesis, 1992. http://hdl.handle.net/10125/9513.
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Yeon, Jaeheum 1981. "Risk Framework for the Next Generation Nuclear Power Plant Construction." Thesis, 2012. http://hdl.handle.net/1969.1/148403.
Full textAbstract:
Uncertainty can be either an opportunity or a risk. Every construction project begins with the expectation of project performance. To meet the expectation, construction projects need to be managed through sound risk assessment and management beginning with the front-end of the project life cycle to check the feasibility of a project.
The Construction Industry Institute’s (CII) International Project Risk Assessment (IPRA) tool has been developed, successfully used for a variety of heavy industry sector projects, and recently elevated to Best Practice status. However, its current format is inadequate to address the unique challenges of constructing the next generation of nuclear power plants (NPP). To understand and determine the risks associated with NPP projects, the goal of this thesis is to develop tailored risk framework for NPP projects that leverages and modifies the existing IPRA process.
The IPRA has 82 elements to assess the risks associated with international construction projects. The modified IPRA adds five major issues (elements) to consider the unique risk factors of typical NPP projects based upon a review of the literature and an evaluation of the performance of previous nuclear-related facilities. The modified IPRA considers the sequence of NPP design that ultimately impacts the risks associated with plant safety and operations. Historically, financial risks have been a major chronic problem with the construction of NPPs. This research suggests that unstable regulations and the lack of design controls and oversight are significant risk issues.
This thesis includes a consistency test to initially validate whether the asserted risks exist in actual conditions. Also, an overall risk assessment is performed based on the proposed risk framework for NPP and the list of assessed risk is proposed through a possible scenario. After the assessment, possible mitigation strategies are also provided against the major risks as a part of this thesis.
This study reports on the preliminary findings for developing a new risk framework for constructing nuclear power plants. Future research is needed for advanced verification of the proposed elements. Follow-on efforts should include verification and validation of the proposed framework by industry experts and methods to quantify and evaluate the performance and risks associated with the multitude of previous NPP projects.
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LIU, JING-RONG, and 劉競榮. "Construction of bacteriophage Cf as cloning vector for plant bacteria." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/13634705971730513788.
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Hsiau, Hsian-Jong, and 蕭獻忠. "Application of Fuzzy PERT for plant construction in project management." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/63159665591596472840.
Full textAbstract:
碩士國立雲林科技大學
工業工程與管理研究所碩士班
92
Construction project generally includes a set of activities. Precise information about the activity duration is seldom available, due to the complication, long range and less duplication. It is not suitable to use crisp value to evaluate the project scheduling. Fuzzy PERT has been developed to solve the project completion time problems for uncertainty of activity duration. But unfortunately there are still many difficulties to apply. The main difficulties are: (1) The fuzzy number comparing methods used to determine the earliest startting date of each task are different. (2) Using fuzzy substraction method to compute the fuzzy latest dates, fuzzy number extension and unreasonable negative value will be happened. (3) Assuming activity durations well known in literature are unreasonable for real world project management. (4) There is no appropriate project risk level index for decision makers to make a decision. This paper deals with above difficulties and proposes modified methods in fuzzy PERT. The modified methods include: (1) Propose Max α-level cut method to compare fuzzy number, in order to determine the reasonable earliest startting date of each task. (2) Using fuzzy algebra method instead of fuzzy substraction method to compute the fuzzy latest dates. (3) Activity durations are available from task volumes and capacity of resources. (4) To create an appropriate project risk level index for decision makers to make a decision. In this paper presents an algorithm model, which is feasible proved by actual example and simulation cases. It can aid decision makers to evaluate construction project completion time and project risk while bidding.
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Chen, Yung-Feng, and 陳永豐. "The Construction of A Scheduling System of Plastic Injection Plant." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/79363769288612039248.
Full textAbstract:
碩士國立雲林科技大學
工業工程與管理研究所碩士班
91
Scheduling is a very important domain in production management. It can be used for planning a series of jobs or activities as well as planning time schedule of a machine and equipment. Therefore it is considered the best method for distribution of limited resource. A construction of a good scheduling system not only can increase the rate of the use of a machine and equipment but also help people to finish jobs on time in order to meet their customers’ demand and increase the profits and abilities of their companies. The parallel-machine scheduling problem will be caused when there are two or more machines to work with the same process. The parallel-machine scheduling problems are commonly found in plastic injection process. Plastic injections parts are produced by using many parallel-machines to achieve the required output. The subject of this research is to provide a construction of a scheduling system of plastic injection plant of the shoes industry and to solve this complicated scheduling problem by using heuristic algorithm and computer.
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Whittaker, Warren James. "Defining design authority elements in Nuclear Power Plant construction projects." Thesis, 2020. https://hdl.handle.net/10539/31281.
Full textAbstract:
A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Science in Engineering, 2020In Nuclear Power Plant operation, Nuclear Safety is paramount to protect the personnel, public, environment and the plant from the potentially harmful effects of nuclear radiation. This is evidenced by nuclear accidents such as Chernobyl and Fukushima. The ability to ensure that the design of a nuclear plant remains aligned to the design intent of its safety systems and components is fundamental to nuclear safety. This responsibility lies with the Design Authority appointed in the operating organisation. With many nuclear power plants being built around the world in countries which have not operated nuclear plants previously, it is imperative that these organisations are supported with guidance on what is needed to establish the Design Authority function. The lack of comprehensive industry guidance has led the researcher to the primary research question: What elements should be considered for the effective establishment of the Design Authority function at commercial operation of a New Nuclear Power Plant Construction project? Based on a comprehensive literature review of existing international industry regulations, standards and guidance documents, followed by a survey of internal nuclear experts, the critical elements for establishing the Design Authority function were identified. The survey covered existing power plant operations and nuclear build projects, as applicable, in countries which included the, United States of America France, United Kingdom, South Korea, Canada, Romania, China, South Africa and. United Arab Emirates The study identified the fundamental elements in establishing the Design Authority function as; acquiring the design knowledge and skills to execute the function; securing the plants design information; and establishing and ensuring compliance to a configuration management process
CK2021
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Chen, Chih-min, and 陳志敏. "The Best Procedure and Organization for Plant Construction Project Managements." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48459070431269288059.
Full textAbstract:
碩士國立中山大學
高階經營碩士班
100
Company F is a well-known petrochemical group in Taiwan. In the early stage of the company founded, the engineering manpower is not sufficient for construction project. All construction projects generally execute with a whip style organization. Into the growth stage in the 1970s, the manpower of the engineering department has been quite adequate with professional skill. In that time, the whip-style organization of plant construction project change to function-style organization model. After the start of the 1990s, a large petrochemical expansion project was start; more than 10 plant construction projects must be executed at the same time. Company F allowing the use of a whip-style project management model to save project manpower. In last 10 years, both of two project organization modes were used when the petrochemical expansion coming to an end. According to the past experience, part of project has been quite successful and part of project failing in schedule, quality and cost control. In this thesis, according to individual construction project practices evaluate the management procedure and mode. By following the engineering management standards of company F combined with the basic concept and theory of project management, supplemented by practical engineering experience to identify the key success factor for project management. And by the case study analyzing optimized project management model for engaging in plant construction project management to follow. This study will summarize the operation procedure of plant construction project management and the standard of project management organization by integration of existing project management specification and the experience of construction projects. That will compare with the literature of project management field and organizational model, than by the personal experience of construction project cases to evaluate the different point of project management field to find the successful and failed reason then find out key success factors. Followed by the combination of standard project organization, literatures of project organization mode and plant construction project cases evaluate what is the best project management model. The key success factors of construction project management can be used to improve the management of construction project for engineering department and company. By the analysis of the optimized construction project management model, the results could be referred for the future of all kinds’ construction project. According to the results, that could supply the improving suggestion for engineering management execution of the engineering department to ensure more safety, quality, cost and schedule control on the construction management. KEY WORDS: Project Management,Construction Management,Project Organization,Project Manager,Construction Project,Key Success Factors
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Wu, Chien-Huei, and 吳建輝. "Design-Build Strategy for Shortening High-Tech Industrial Plant Construction." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/668332.
Full textAbstract:
碩士國立臺北科技大學
土木與防災研究所
93
As Taiwan’s high tech industry has made great developments within the past 20 years, I have participated in the design and construction management of numerous high tech fabrication (fab) plants. The fierce competition, huge investments, and rapid changes that exist within the high tech industry necessitate extremely tight schedules for fab construction. Thus, in order to achieve superiority in the market of fab construction services, speed is very important. In my experience, we have assisted clients with equipment setup in addition to constructing their fab plants in order to help them advance/meet their proposed plant test run date. Gradually, the traditional construction method of separating design and construction will become inadequate at satisfying the time restrictions of high tech fab plant construction; the study and use of alternate methods will be necessary. This technical report aims to evaluate such innovative methods by taking into account reviews of existing literature, Fast Track Construction and Design-Build Construction case studies and personal experience. One must consider factors of work scope, management style, company organization, and design-construction integration and coordination while attempting to reduce the design and construction time required to build a fab plant. The report intends to serve as a reference to the construction industry and high tech client companies on high-tech fab plant construction and management.
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Cheng, Li-Hung, and 鄭莉虹. "Design - Construction Interface Problems-A case study for High tech plant." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/h2d9k5.
Full textAbstract:
碩士國立高雄第一科技大學
營建工程系碩士專班
105
This study is using system thinking to explore the interface issues and influencing factors of design and construction during the construction process of High-Tech Plant. It’s expected to find the mental model and fundamental solution of Owner 、designer and constructor through the multi-level causal relationship by (1) literature review method (2) interview (3) system thinking technology. Study conclusions of the root causes occurring the interfaces between design and construction are (1) lacking of experience and knowledge in project, undefined plant requirement, lacking of construction information, short planning period, change of decision making in Owner side (2) interface integration is not fulfilled, lacking of design information, short design planning period and not familiar with actual construction process in Design side(3) there is mental model with “limited thinking and blaming” for Owner construction and design department.
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Shen, Chien-Hung, and 沈建宏. "Integration of Planning and Design processes for Semiconductor Plant Construction Projects." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/he2bf2.
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Sung, Ssu-Hsien, and 宋思賢. "Applying Object-Block-Based Visualization to Construction Site Management -A Precast Concrete Case in High-Tech Plant Construction." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/74109051526575093600.
Full textAbstract:
碩士國立臺灣大學
土木工程學研究所
97
The features of High-tech factory construction project include tight construction duration, numerous mobilization, high-volume of materials, and complexity of interfaces. In the overall project, the cost and the progress of construction are seriously affected by transmission of interface information. According to Lean Construction Institute theory, due to inefficiency, errors, delay, and communications, 30% of the construction cost are wasted on manpower and material. Therefore, in order to reduce waste and risk in project planning and construction , this research intends to use 4D visualized model to facilitate the transmission interface of information. The purpose of this research aims to apply 4D visualized technology for facilitating construction site management and in line with the theory of Lean Construction concepts. The research project focuses on construction management, and its research process is as follows: the first step is to establish a Work Breakdwon Structure (WBS) based on 4D image, known as Object Block Work Breakdown Structure (OBWBS), which is advantageous to define images in the working items operated by the contractor of the project. The second step is to plan the construction process of contractors. Finally the images classified by OBWBS are linked to construction project process and carried out 4D simulation. Consequently, this 4D visualized model can be applied to simulate working process for various contrators work. Meanwhile, it can be used to verify how far is between the current stage and the ultimate result. The model can surely improve communication and efficiency of decision making.
50
Chen, Jwo-Shin, and 陳茁新. "A Study of Design-Builder Selection Criteria for the Petrochemical Plant Construction." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/43245632469663337566.
Full textAbstract:
碩士國立雲林科技大學
工業工程與管理研究所碩士班
92
Petrochemical industry is one of the most important primary industries in Taiwan. Products of this industry comprise headstream basic parts, middle stream medial parts, and down stream processing wares. According to statistics of Industrial Development Bureau (IDB), the total production value of petrochemical industry has exceeded 12000 hundred millions NT dollars, with the percentage standing at approximately 23% of the whole manufacturing industry. Therefore, it affects the domestic economy enormously. In recent years, global demand on petroleum chemicals is growing. The ongoing attempt to carry out the tenth five-years plan from the mainland China specifically and especially stimulates the rapid growth of the petrochemical industry. Building a petrochemical industrial park is becoming the priority construction in between across the strait. Currently, to ensure the plant-building efficiency, most petrochemical plant constructions adopt the design-build mode. In the past, on the contrary, since there was no formal and strict criteria for plant builder selection, quality of builders differs tremendously, producing flaws in certain design cases and construction quality, making untoward operations, and creating tremendous cost in maintenance and resulting in huge waste. In light of the unsuccessful past domestic plant-building experiences, how to select an excellent and reliable design-builder is key for petrochemical plant to finish construction without a hitch.. This research focuses on plant-building design-builder selection criteria for the petrochemical industry. This study analyzes in depth all relevant documentations, either domestic or abroad, regarding scholars, institutes, and public projects, and other related writings concerning plant-building practices from a certain petrochemical firm in Taiwan to discuss the correlations of petrochemical plant-building factors, builder selection factors of public projects, and design-builder selection criteria for the petrochemical plant construction. Using the correlations established, expert interview is conducted, questionnaire designed, and factor analysis conducted to establish to build criteria hierarchy. Then, the Analytic Hierarchy Process (AHP) is utilized to determine each criterion weight and to establish a strict but feasible selection criteria mechanism. The results of this study serve as a reference for managers of petrochemical industry in choosing the best plant-building design-builder.