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Littérature scientifique sur le sujet « General or miscellaneous »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "General or miscellaneous"

« I. GENERAL / MISCELLANEOUS ». English and American Studies in German 2010 (14 janvier 2011) : 1–2. http://dx.doi.org/10.1515/9783110239393.1.

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« A. General. Miscellaneous ». English and American Studies in German 2010 (14 janvier 2011). http://dx.doi.org/10.1515/9783110239393.17.

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« PART EIGHT GENERAL AND MISCELLANEOUS PROVISIONS ». Palestine Yearbook of International Law Online 4, n^o 1 (1987) : 353–62. http://dx.doi.org/10.1163/221161488x00142.

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« Miscellaneous : Promoting excellence in teaching general practice ». European Journal of General Practice 2, n^o 4 (janvier 1996) : 176. http://dx.doi.org/10.3109/13814789609161564.

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Abdisa, Tagesu. « General Characteristic and Miscellaneous Examination of Microorganism ». International Journal of Veterinary Science and Research, 14 août 2018, 105–8. http://dx.doi.org/10.17352/ijvsr.s1.115.

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« Miscellaneous ». Microporous Materials 1, n^o 3 (juin 1993) : 235. http://dx.doi.org/10.1016/0927-6513(93)80089-d.

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« Miscellaneous ». Orvosi Hetilap 150, n^o 39 (1 septembre 2009) : 1839–40. http://dx.doi.org/10.1556/oh.2009.39m.

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« Miscellaneous ». Orvosi Hetilap 150, n^o 40 (octobre 2009) : 1871–79. http://dx.doi.org/10.1556/oh.2009.40m.

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« Miscellaneous ». Orvosi Hetilap 150, n^o 41 (1 octobre 2009) : 1912–19. http://dx.doi.org/10.1556/oh.2009.41m.

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« Miscellaneous ». Orvosi Hetilap 150, n^o 42 (1 octobre 2009) : 1956–59. http://dx.doi.org/10.1556/oh.2009.42m.

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Thèses sur le sujet "General or miscellaneous"

Jacka, David. « High-Level Control of Agent-based Crowds by means of General Constraints ». Thesis, University of Cape Town, 2009. http://pubs.cs.uct.ac.za/archive/00000638/.

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The use of virtual crowds in visual eects has grown tremendously since the warring armies of virtual orcs and elves were seen in The Lord of the Rings. These crowds are generated by agent-based simulations, where each agent has the ability to reason and act for itself. This autonomy is eective at automatically producing realistic, complex group behaviour but leads to problems in controlling the crowds. Due to interaction between crowd members, the link between the behaviour of the individual and that of the whole crowd is not obvious. The control of a crowd's behaviour is, therefore, time consuming and frustrating, as manually editing the behaviour of individuals is often the only control approach available. This problem of control has not been widely addressed in crowd simulation research. We propose, implement and test a system in which a user may control the behaviour of a crowd by means of general constraints. This Constraint Satisfaction system automatically alters the behaviour of the individuals in the crowd such that the group behaviour meets the provided constraints. We test this system on a number of scenarios involving dierent types of agents and compare the effectiveness of this automatic system to an expert user manually changing the crowd. We find our method of control, in most cases, to be at least as effective as the expert user.

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Schollar, Christopher. « RFI Monitoring for the MeerKAT Radio Telescope ». Thesis, University of Cape Town, 2015. http://pubs.cs.uct.ac.za/archive/00001042/.

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South Africa is currently building MeerKAT, a 64 dish radio telescope array, as a pre-cursor for the proposed Square Kilometre Array (SKA). Both telescopes will be located at a remote site in the Karoo with a low level of Radio Frequency Interference (RFI). It is important to maintain a low level of RFI to ensure that MeerKAT has an unobstructed view of the universe across its bandwidth. The only way to effectively manage the environment is with a record of RFI around the telescope. The RFI management team on the MeerKAT site has multiple tools for monitoring RFI. There is a 7 dish radio telescope array called KAT7 which is used for bi-weekly RFI scans on the horizon. The team has two RFI trailers which provide a mobile spectrum and transient measurement system. They also have commercial handheld spectrum analysers. Most of these tools are only used sporadically during RFI measurement campaigns. None of the tools provided a continuous record of the environment and none of them perform automatic RFI detection. Here we design and implement an automatic, continuous RFI monitoring solution for MeerKAT. The monitor consists of an auxiliary antenna on site which continuously captures and stores radio spectra. The statistics of the spectra describe the radio frequency environment and identify potential RFI sources. All of the stored RFI data is accessible over the web. Users can view the data using interactive visualisations or download the raw data. The monitor thus provides a continuous record of the RF environment, automatically detects RFI and makes this information easily accessible. This RFI monitor functioned successfully for over a year with minimal human intervention. The monitor assisted RFI management on site during RFI campaigns. The data has proved to be accurate, the RFI detection algorithm shown to be effective and the web visualisations have been tested by MeerKAT engineers and astronomers and proven to be useful. The monitor represents a clear improvement over previous monitoring solutions used by MeerKAT and is an effective site management tool.

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Xu, Dongping. « Performance Study and Dynamic Optimization Design for Thread Pool Systems ». Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/835380-ZOcXfL/webviewable/.

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Nucara, Pascal. « Design of gas turbine axial compressors for fuel flexibility ». Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48905/.

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Current gas turbine technology for power generation is generally optimised for natural gas. On the basis of current instabilities in natural gas price and supply, the use of alternative fuels, such as syngas, has recently gained high interest. Due to the different thermodynamic properties of syngas compared to natural gas the behaviour of existing gas turbine components may significantly change. From practical and economic points of view, it is generally considered that in order to meet the new fuel properties, the main effort should be put on the adaptation of conventional gas turbines in integrated gasification combined cycle (IGCC) plants rather than producing a new generation of gas turbine designs from scratch. In addition to the requirement of new combustion technologies, main critical issues are represented by the reduction of compressor surge margin and turbine blade overheating. Solutions might include thermodynamic cycle as well as turbine geometry modifications. The latter would be preferred in terms of power plant performance. The main aim of this thesis is to explore suitable solutions to be applied to gas turbine compressors in order to accommodate syngas combustion. Among others, the use of variable stator vanes (VSVs) and blade radial stacking line modifications are considered. These are investigated on reference geometries available in the public domain. A baseline compressor geometry representative of a conventional heavy-duty gas turbine fueled with natural gas is generated and modified according to the understating gained during this study. The re-designed machine is a result of the application of stator vanes re-staggering in the front stages and blade sweep in the rear stages in order to cope with compressor air supply control and critical flow separation regions respectively. The obtained results show that efficient and stable operation during power modulation can be achieved, while reducing the need of other modifications to the combined cycle plant. It was therefore concluded that the proposed option can be considered a viable option to satisfy some important technical and economic constraints imposed by the integration of an existing gas turbine within an IGCC plant.

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Ekong, Godwin I. « Tip clearance control concepts in gas turbine H.P. compressors ». Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48906/.

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Ravindrudu, Rahul. « Benchmarking More Aspects of High Performance Computing ». Ames, Iowa : Oak Ridge, Tenn. : Ames Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/837280-06M7ga/webviewable/.

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Thesis (M.S.); Submitted to Iowa State Univ., Ames, IA (US); 19 Dec 2004.
Published through the Information Bridge: DOE Scientific and Technical Information. "IS-T 2196" Rahul Ravindrudu. US Department of Energy 12/19/2004. Report is also available in paper and microfiche from NTIS.

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Nolasco, Carlos Manuel Simões. « Dos pontapés na bola aos pontapés no Direito-para um entendimento do direito do desporto ». Master's thesis, Instituições portuguesas -- UC-Universidade de Coimbra -- -Faculdade de Economia, 1999. http://dited.bn.pt:80/29072.

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Nolasco, Carlos Manuel Simões. « Dos pontapés na bola aos pontapés no direito : para um entendimento do direito do desporto ». Master's thesis, Instituições portuguesas -- UC-Universidade de Coimbra -- -Faculdade de Economia, 1999. http://hdl.handle.net/10316/9733.

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Barber, IV John Letherman. « Application of optimal prediction to molecular dynamics ». Berkeley, Calif. : Oak Ridge, Tenn. : Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/838987-xpCsPP/native/.

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Thesis (Ph.D.); Submitted to the University of California at Berkeley, Berkeley, CA 94720 (US); 1 Dec 2004.
Published through the Information Bridge: DOE Scientific and Technical Information. "LBNL--56842" Barber IV, John Letherman. USDOE Director. Office of Science. Advanced Scientific Computing Research (US) 12/01/2004. Report is also available in paper and microfiche from NTIS.

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Majidpour, Mehdi. « The dynamics of technological catching-up : the case of Iran’s gas turbine industry ». Thesis, University of Sussex, 2011. http://sro.sussex.ac.uk/id/eprint/6905/.

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Today, fostering gas-fired power plants is recognised as a significant step towards a low-carbon economy. Gas fired-power plants are favoured over other types of fossil-fuelled power plants due to their various advantages, including lower emissions, flexibility of technology, higher efficiency, short construction times and lower capital investment. The gas turbine is the main machine and the most technologically advanced part of a gas-fired power plant. There have been a limited number of companies in industrialised countries that have developed these sophisticated technologies over the last 50 years. The global market for land-based gas turbines has an oligopolistic structure. The evolution of these technologies has been greatly influenced by countries' government policies, and in particular energy policies. In this light, one question is: to what extent have industrialising countries built their technological capabilities in gas turbines? Consequently, one focus of interest here is the way in which, and the extent to which, industrialising countries have synthesised their indigenous technology development efforts with overseas technology inflows. Countries such as Iran, India and China, which have large and growing domestic electricity markets, are appropriate candidates for research in order to understand the possible technological gaps and associated dynamics between the industrialised and industrialising worlds. To answer these questions, this thesis research deals with Iran's gas turbine industry and, for the first time, systematically examines this industry in the context of a developing country. The study delves deeply into the dynamics of interactions between indigenous technology development and overseas technology inflows. It casts light upon the influences, challenges, and difficulties associated with technological catching-up processes. The framework of the analysis is based on an extensive literature review on technological catch-up, the substitution/complementarity debate, and the gas turbine industry. The framework was operationalized through qualitative interviews as well as supplementary documents. The thesis uses a ‘dynamic approach', and argues that understanding the interaction processes cannot be reduced to examining only the type of relationship between the two technology sources. Instead, far more attention needs to be devoted to analysing the complexity and associated influences on this relationship. The thesis also provides empirical insights into the development of gas turbine capabilities in India and China, the two largest emerging economies. It reveals that a high level of state involvement in developing countries is a prominent feature of the industry. It also demonstrates that the evolution of the industry also in both developed and developing countries is closely interrelated with each country's national energy policies.

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Livres sur le sujet "General or miscellaneous"

National Health Service in Scotland. Management Executive., dir. Miscellaneous spaces in a district general hospital. Edinburgh : HMSO, 1993.

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Smith, Dominic. The beautiful miscellaneous : A novel. New York, NY : Atria Books, 2008.

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An epsilon of room, II : Pages from year three of a mathematical blog. Providence, R.I : American Mathematical Society, 2010.

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United States. Congress. House. Committee on Naval Affairs, dir. Items of Pay, Miscellaneous. Insert on Page 39, Hearings of Paymaster-General Harris. Washington : U.S. G.P.O., 1985.

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Britain, Great. Health and personal social services : General Dental Services (Miscellaneous Amendments) Regulations (Northern Ireland) 1992. [Belfast] : HMSO, 1992.

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Britain, Great. Health and personal social services : General Dental Services (Miscellaneous Amendments) Regulations (Northern Ireland) 1991. [Belfast] : HMSO, 1991.

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A Moscow math circle : Week-by-week problem sets. Berkeley, Calif : Mathematical Sciences Research Institute, 2011.

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West, Lucy Fisher. The papers of Martin Van Buren : Guide and index to general correspondence and miscellaneous documents. Alexandria, VA : Chadwyck-Healey, 1989.

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Britain, Great. Health and personal social services : General Dental Services (Miscellaneous Amendments) (No.2) Regulations (Northern Ireland) 1990. [Belfast] : HMSO, 1990.

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Faulkner, William. Knight's gambit : Typescripts and miscellaneous typescript pages. New York : Garland Pub., 1987.

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Chapitres de livres sur le sujet "General or miscellaneous"

Shami, Shukri K., et Delilah A. Hassanally. « Miscellaneous ». Dans Manual of Ambulatory General Surgery, 99–122. London : Springer London, 2000. http://dx.doi.org/10.1007/978-1-4471-0723-1_9.

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Kaliyadan, Feroze, Jayasree Puravoor, Balachandra Ankad, Richard Usatine, Aimilios Lallas, Bengu Nisa Akay, Nirmal Balakrishnan et Enzo Errichetti. « Miscellaneous ». Dans Dermoscopy in General Dermatology for Skin of Colour, 91–107. London : CRC Press, 2021. http://dx.doi.org/10.1201/9780367816483-9.

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Ochiai, Ei-Ichiro. « Miscellaneous Topics ». Dans General Principles of Biochemistry of the Elements, 213–34. Boston, MA : Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-5371-3_7.

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Zhang, Wei-Bin. « Miscellaneous Issues and Conclusion ». Dans The General Economic Theory, 339–42. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56204-5_16.

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Singh, Hariqbal, et Dinesh Pardesi. « Miscellaneous ». Dans Radiology for Undergraduates and General Practitioners, 193. Jaypee Brothers Medical Publishers (P) Ltd., 2012. http://dx.doi.org/10.5005/jp/books/11540_12.

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Gupta, RP. « Miscellaneous ». Dans Interesting X-rays in General Surgery, 231. Jaypee Brothers Medical Publishers (P) Ltd., 2010. http://dx.doi.org/10.5005/jp/books/11374_9.

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« I. GENERAL. MISCELLANEOUS ». Dans English and American Studies (2007), sous la direction de Paul Georg Meyer. Berlin, New York : Walter de Gruyter – Max Niemeyer Verlag, 2008. http://dx.doi.org/10.1515/9783484431089.1.

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« I. GENERAL / MISCELLANEOUS ». Dans English and American Studies in German (2006), sous la direction de Paul Georg Meyer. Berlin, New York : Walter de Gruyter – Max Niemeyer Verlag, 2007. http://dx.doi.org/10.1515/9783484431195.1.

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Gudmundsson, Snorri. « Miscellaneous Design Notes ». Dans General Aviation Aircraft Design, 947–83. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-397308-5.00023-4.

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Gudmundsson, Snorri. « Miscellaneous Design Notes ». Dans General Aviation Aircraft Design, 1007–30. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-818465-3.00026-4.

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Actes de conférences sur le sujet "General or miscellaneous"

Du, L., D. He, Y. Yang, J. A. Restrepo, B. Lu, R. G. Harley et T. G. Habetler. « Self-organizing classification and identification of miscellaneous electric loads ». Dans 2012 IEEE Power & Energy Society General Meeting. New Energy Horizons - Opportunities and Challenges. IEEE, 2012. http://dx.doi.org/10.1109/pesgm.2012.6343927.

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Kolovich, Carolyn E., et Harvey Haines. « Analysis of US Liquid and Gas Incident Data ». Dans 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0202.

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This document presents an analysis of “Reportable Incidents” on gas transmission and gathering pipelines in the U.S. during the 16-year period from 1985 through 2000 and on liquid pipelines in the U.S. from 1986 through 2000. The reporting format changed after 1985 for the liquid incidents. The purposes of this analysis are to improve the pipeline industry’s understanding of the causes of incidents and their consequences, to monitor trends that may indicate the need for action, and to diagnose potential problems in the database that might be general in nature and to identify areas for potential improvement in the data collection process that can help pipelines address the issue of risk management. After third party, accounting for 27.6 percent of all gas incidents, the next four leading causes of reportable incidents are: internal corrosion 12.8 percent, external corrosion 9.9 percent, incorrect operation 7.0 percent, and miscellaneous 6.8 percent. For the liquid incidents, third party incidents are also the leading cause at 20.5 percent. External corrosion was responsible for 18.5 percent, followed by miscellaneous incidents at 9.9 percent, incorrect operations at 8.6 percent and internal corrosion at 6.2 percent. For natural gas pipelines, it appears the number of third party and external corrosion incidents are decreasing while the number of internal corrosion incidents is increasing slightly. For liquid pipelines, the numbers of incidents attributable to third party damage and internal corrosion have remained relatively constant, while there has been a slight decrease in incidents caused by external corrosion. The consequences of incidents are of great importance in terms of assessing their impact on public safety. The consequences of pipeline failures are expressed in the incident reports in terms of fatalities, injuries, and property damage.

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Li, Jun, Xin Guo et Wu Zhao. « Research on Multi-Dimensional Information Service Oriented to Innovative Process Planning ». Dans ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/detc2021-71137.

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Abstract The importance of process planning in manufacturing systems has been widely recognized. Process planning is a complex process with abundant information, intensive knowledge and miscellaneous experience, which leads to many challenges in its innovation. Innovation has been supported by innovative methods and information integration. However, the existing research on innovative design theory and information integration only focused on product design but rarely process planning. Therefore, it is urgent to study how to systematically use multi-dimensional information to influence process planning and realize innovative process design. An model for innovative process planning was proposed. And the general strategy of process innovation design was established. The process knowledge management and application methods were put forward, and the knowledge service system for innovative process was established. In order to support process innovation in practice, the framework of innovative process design service platform was established. Finally, a case is taken to illustrate the feasibility of the proposed method. The result shows that the proposed method can guide the designers to produce innovative process plans rapidly to solve the shortcomings of traditional process plans.

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Denton, J. D. « Loss Mechanisms in Turbomachines ». Dans ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-435.

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The origins and effects of loss in turbomachines are discussed with the emphasis on trying to understand the physical origins of loss rather than on reviewing the available prediction methods. Loss is defined in terms of entropy increase and the relationship of this to the more familiar loss coefficients is derived and discussed. The sources of entropy are in general: Viscous effects in boundary layers, viscous effects in mixing processes, shock waves and heat transfer across temperature differences. These are first discussed in general and then the results are applied to turbomachinery flows. Understanding of the loss due to heat transfer requires some discussion of cycle thermodynamics. Sections are devoted to discussing: Blade boundary layer and trailing edge loss, tip leakage loss, endwall loss, effects of heat transfer and miscellaneous losses. The loss arising from boundary layer separation is particularly difficult to quantify. Most of the discussion is based on axial flow machines but a separate section is devoted to the special problems of radial flow machines. In some cases, eg attached blade boundary layers, the loss mechanisms are well understood, but even so the loss can seldom be predicted with great accuracy. In many other cases, eg endwall loss, the loss mechanisms are still not clearly understood and prediction methods remain very dependent on correlations. The paper emphasises that the use of correlations should not be a substitute for trying to understand the origins of loss and suggests that a good physical understanding of the latter may be more valuable than a quantitative prediction.

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Detilleux, Michel, et Baudouin Centner. « In-House Developed Methodologies and Tools for Decommissioning Projects ». Dans The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7350.

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The paper describes different methodologies and tools developed in-house by Tractebel Engineering to facilitate the engineering works to be carried out especially in the frame of decommissioning projects. Three examples of tools with their corresponding results are presented: - The LLWAA-DECOM code, a software developed for the radiological characterization of contaminated systems and equipment. The code constitutes a specific module of more general software that was originally developed to characterize radioactive waste streams in order to be able to declare the radiological inventory of critical nuclides, in particular difficult-to-measure radionuclides, to the Authorities. In the case of LLWAA-DECOM, deposited activities inside contaminated equipment (piping, tanks, heat exchangers ...) and scaling factors between nuclides, at any given time of the decommissioning time schedule, are calculated on the basis of physical characteristics of the systems and of operational parameters of the nuclear power plant. This methodology was applied to assess decommissioning costs of Belgian NPPs, to characterize the primary system of Trino NPP in Italy, to characterize the equipment of miscellaneous circuits of Ignalina NPP and of Kozloduy unit 1 and, to calculate remaining dose rates around equipment in the frame of the preparation of decommissioning activities; - The VISIMODELLER tool, a user friendly CAD interface developed to ease the introduction of lay-out areas in a software named VISIPLAN. VISIPLAN is a 3D dose rate assessment tool for ALARA work planning, developed by the Belgian Nuclear Research Centre SCK·CEN. Both softwares were used for projects such as the steam generators replacements in Belgian NPPs or the preparation of the decommissioning of units 1&2 of Kozloduy NPP; - The DBS software, a software developed to manage the different kinds of activities that are part of the general time schedule of a decommissioning project. For each activity, when relevant, algorithms allow to estimate, on the basis of local inputs, radiological exposures of the operators (collective and individual doses), production of primary, secondary and tertiary waste and their characterization, production of conditioned waste, release of effluents, ... and enable the calculation and the presentation (histograms) of the global results for all activities together. An example of application in the frame of the Ignalina decommissioning project is given.

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Šafranj, Jelisaveta, Vesna Bogdanović et Vesna Bulatović. « Paragraph development in scientific and technical writing ». Dans 11th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design, 2022. http://dx.doi.org/10.24867/grid-2022-p65.

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A paragraph is a grouping of sentences, a way of carving them up into connected sets so as to reduce the diversity of their thoughts to manageable proportions. Normally readers will expect a paragraph to have a single focus and one role since it is defined as a group of sentences developing a single idea, concept, thought, and topic. Overlong paragraphs, with too many sentences in them, have numerous drawbacks. The text becomes under organized and difficult to follow. However, paragraphs should not be too short. If paragraphs are reduced to just one or two sentences, then they cease to have this organizing rationale and become heteronymous cogs, turning as the argument progresses but not doing any useful work. For English-speaking readers, short paragraphs in technical writing will also make the text look disconnected, fragmented, and uncertain. A paragraph's pattern is important in making an argument look coherent and well organized because it is a unit of thought. In general, a paragraph should make one point, or one component part of a single broader point. Where a paragraph handles miscellaneous unconnected points, as it is sometimes necessary to round out an argument, this role should be explicitly signaled to readers because they will not expect it. The relationship between the ideas in an EST (English for Science and Technology) paragraph and between the items of information and the core generalization is expressed by several techniques. Sometimes the nature of the material the writer has available determines the applied technique, but at other times, the writer makes his own decisions as to the best way of presenting the relationships between his ideas. In the first case, we are dealing with natural techniques, and in the second, with logical techniques, and they are not mutually exclusive.

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Cinello, Alexandre, François Pétrié, Eric Le Hir, Bernard Molin et Guillaume de Hauteclocque. « Shielding Effect on the Overall Hydrodynamic Properties of Complex Subsea Structures ». Dans ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83063.

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Deepwater field developments are usually associated with large submarine packages to be installed such as suction anchors, manifolds and other subsea equipment. Key data for the lowering operation engineering are the added mass and drag coefficients of the package, which is usually a complex structure made of plates (mudmat, drop object protection…), piping and miscellaneous equipment. To extract these hydrodynamics coefficients, it is usual industry practice to consider the package overall volume or to sum the individual components coefficients which may lead to very different results. Experimental investigations on generic complex structures have been conducted within the CITEPH project “Offshore installation of heavy package – phase II”, with the aim of better understanding the hydrodynamics coefficients to be used for the design. This paper presents the work that has been performed during this joint industry project, in 2010/2011, with the support of TOTAL, TECHNIP, SAIPEM and DORIS Engineering, on shielding effect. In particular, model tests set-up and main results are discussed. The trends that have been found and the empirical laws that have been established as functions of dimensionless numbers are also presented.

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Yuan, Chengyin, et Placid Ferreira. « EMBench : An IEC61499 Based Integrated Environment for Manufacturing Systems ». Dans ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21109.

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In these days, manufacturing organizations are facing global competition and short technological cycles. The flexibility of an enterprise and its ability to respond to miscellaneous customer requests decide the competitiveness in the global market. It also requires that the manufacturing plant must reorganize efficiently to produce various products at low cost and short time. This flexibility in the manufacturing process must be able to accommodate various tasks to share resources under safe and efficient control. In the current development processes of manufacturing systems, information handling usually is an undeveloped area. Domains such as design, validation, and deployment will be separated and isolated. One reason for the redundant non-value-added implementation of the component model is that existing system development largely consists of isolated sub-processes that generate proprietary information such as control logic, simulation models, etc. This paper focuses on introducing an innovative software environment, EMBench, which integrates mechanical design, control configuration, simulation and deployment services seamlessly for manufacturing automation systems. Its auto-generated user-friendly GUI (Graphical User Interface) supports direct commanding to the controller at different layers, and internal data (control/mechanical) and model (simulation/physical) mapping eliminates redundant and error-prone manual data entry and model replication at different stages. This tool provides a means of layered and encapsulated services so that complex systems can be designed, configured, simulated and deployed hierarchically with various levels of details. IEC61499 is an emerging industrial standard for distributed industrial process measurement & control systems. Using IEC61499 function blocks and service layer architecture, control services ranging from basic joint servo, to kinematics of a mechanism, to trajectory interpolation, to language parsing and HMI processing, to complex multiple resources/processes coordination can be configured for an application. With the adaptation of IEC61499, EMBench serves as a modular, component-based design, simulation and prototyping tool for shop floor control. Several case studies are presented in details and various potential usages in different fields are discussed. EMBench uses IEC61499 as a means for modularization and reuse of control services.

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Jia, Bao, Yongchao Wang, Qin He, Tianyang Lliu, Chenggang Xian, Wenfeng Jia, Ming Jiang et Cenk Temizel. « Mechanistic Understanding of Delayed Oil Breakthrough in Near-Critical Point Shale Oil Reservoirs ». Dans SPE Eastern Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/211869-ms.

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Abstract Recently, significant breakthroughs have been made in exploring one specific shale oil field, northeast China. On-site observation reveals that the appearance of oil at the wellhead is only seen a long time after fracturing in many wells. The extended period of purely water production complicates subsurface flow behavior and hinders the increase of medium- and long-term oil production. Strong coupling between phase behavior and relative permeability curves in the reservoir with the near-critical point initial condition restricts the efficient development of this kind of shale oil. The work gives detailed descriptions of the geology and petrophysics background of the target formation. A series of compositional simulation models are constructed to reveal the cause of the late oil breakthrough. The delayed oil breakthrough is highly related to the coexistence of three phases that are not seen in common reservoirs. Such reservoirs’ early-time production behavior is positively associated with the gas-liquid relative permeability curves and initial water saturation. Oil-water relative permeability curves affect the water-cut behavior depending on wetting properties. The potential oil-wet property slows down oil breakthroughs. Conceivably, purely gas and water phases exist due to the nanopore confinement of crude oil phase behavior; thus, the late oil production is barely related to the gas-liquid relative permeability curves. The Q formation is widely developed in Songliao Basin, where the oil and gas generation indexes are promising. Few tectonic movements and large-scale fault zones occurred in this area suitable for oil and gas exploration and development.1,2 The first member of the Q formation contains high-quality source rocks and high hydrocarbon generation potential. The shale formation strata are similar to the Forth Worth basin and Barnett shale stratigraphic assemblage in the United States, containing miscellaneous mineralogies. The shale of the Q formation is felsic; generally, the first member has less clay than the second and third members.3 During the development of G Sag in the first member, deferred oil production appears in many horizontal wells after fracturing. The effluent at the wellhead continues to be pure water phase for a long time. This phenomenon did not occur in China's Longdong shale oil, Mahu tight oil, Jimusar shale oil, and Changqing tight oilfields.4–6 For example, the average oil appearance time in the demonstration area of three-dimensional development of the Mahu tight conglomerate reservoir is just 1.67 days, and the initial production increased rapidly. Similarly, according to our literature survey, such postponed oil production has not been recorded in shale reservoirs in the United States. The late and long-term water production occurrence means that complex phase transition and multiphase flow behavior have occurred in the subsurface, regulating medium- and long-term oil and gas production. The late appearance of oil is closely related to the initial state of the reservoir at the critical point of the phase envelope and the three-phase flow of oil, gas, and water. Generally speaking, the initial pressure of the reservoir is much higher than the saturation pressure, so the oil and water phases coexist, and the oil phase is in a single-phase state.7,8 For many light crude oils in G sag, the initial state of the reservoir is close to the critical temperature and critical pressure point, implying that oil, gas, and water might coexist initially, leading to the unique production flow circumstance after fracturing. The objectives of this study are: 1. provide a relatively comprehensive background petrophysical delineation of the Q formation; 2. establish exploratory reservoir simulation models based on PVT data to interpret the delayed oil production; the inceptive models are compositional with deep insight into the coupled phase behavior and relative permeability curves; 3. investigate possible nanopore confinement on the relative permeability interpretation.

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Rapports d'organisations sur le sujet "General or miscellaneous"

Research Department - Miscellaneous Correspondence - Miscellaneous, General - Coombs, Dr HC - File 2 - 1936 - 1953. Reserve Bank of Australia, septembre 2022. http://dx.doi.org/10.47688/rba_archives_2006/18711.

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Papua New Guinea - Miscellaneous - Treasurer (Australia) - General Correspondence. Reserve Bank of Australia, mars 2021. http://dx.doi.org/10.47688/rba_archives_2006/04222.

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Research Department - Miscellaneous Correspondence - Miscellaneous, General - Correspondence Coombs, Dr HC and Melville, Professor LG - 1951 - 1953. Reserve Bank of Australia, septembre 2022. http://dx.doi.org/10.47688/rba_archives_2006/18869.

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Research Department - Central Bank - General - Miscellaneous - International Credits - 1950 - 1962. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2006/16627.

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Research Department - Central Bank - General - Miscellaneous - Economic Policy - 1950 - 1953. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2008/01573.

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Research Department - Central Bank - General - Miscellaneous Correspondence - Currency - 1924 - 1953. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2006/16313.

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Research Department - Central Bank - General - Miscellaneous - Economic Policy - 1952 - 1962. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2006/16667.

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Research Department - Central Bank - General - Miscellaneous - Interest Rates - 1944 - 1950. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2006/16336.

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Research Department - Central Bank - General - Miscellaneous - Economic Policy - 1949 - 1950. Reserve Bank of Australia, septembre 2021. http://dx.doi.org/10.47688/rba_archives_2006/16633.

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Research Department - Miscellaneous Correspondence - Miscellaneous, General - Correspondence from Dr Coombs on Discussions with USA and UK - 1943. Reserve Bank of Australia, septembre 2022. http://dx.doi.org/10.47688/rba_archives_2006/18638.

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