Дисертації з теми "Mass balance analysis"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-46 дисертацій для дослідження на тему "Mass balance analysis".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
DeBuhr, Christopher Leonard. "Metamorphic petrology and mass balance analysis in the Bugaboo contact aureole." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0019/NQ49488.pdf.
Повний текст джерелаLaukkanen, Mikko. "Project Solaris - Mass and balance analysis tool for a solar powered UAV." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-7449.
Повний текст джерелаBergman, Ottar. "A Regional Analysis of Changing Climate Conditions and Glacier Mass Balance in Svalbard." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-383930.
Повний текст джерелаMigliavacca, Alencar. "Balanço de massa, energia e exergia na produção intensiva de frangos de corte." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3150/tde-06122017-090731/.
Повний текст джерелаBrazilian production of broilers has been highlighted with the implantation of the integrated production system, which improved the efficiency and quality in animal protein conversion. However, due to the rapid technological evolution with the increasing energy demand and the diversification of production systems in different microclimates, elucidating mass and energy conversion processes has become a challenging task regarding this production system. Constantly, researchers, producers and agribusiness look for more profitable processes, reducing the labour demand and environmental impact. However, an integrated evaluation of the productive system of broilers, considering the quantitative, energy and environmental aspects has never been carried out. Thus, this study aims at promoting a detailed mass and energy balance and to evaluate the quality of the energy conversions in the productive process of broilers by means of exergy analysis. With the survey of inputs, products and direct wastes, linked to the production cycle, the mass flow rates for the different processes of the cycle were quantified and a complete diagnosis of the quantity and quality energetic involved was obtained applying the exergy evaluation. Considering the scenario adopted, in mass terms, the greatest demands identified for the inputs were water (69.2%) and feed (24.9%). At the exit of the process, the greenhouse gases/dust extracted through ventilation (39.4%), the firewood combustion gases (25.6%) and the litter poultry generated (14.2%) are the main outputs. The broilers mass was quantified in 20%. The relation between water and feed consumption has shown to be the temperature. Regarding energy, the largest contribution identified for the inputs was feed (77.7%) followed by the absorbent (9.7%) and firewood (9.6%). At the exit of the process lead the energy associated with the broilers (33.2%) and the poultry litter generated (32.1%). The energy performance obtained for conventional shed was 27%. The processes of the largest exergy destroyed within the productive cycle are the litter poultry converted from excreta (51.5% in conventional and 48.2% in air conditioning) and the combustion of wood for heating (21.9% in conventional and 20.5% in air conditioning). In addition, the second law performance for the cycle was estimated in about 26%. The energy and exergy production index was introduced allowing for the comparison among different systems. As the main residue, the litter poultry generated in the cycle when reused as an input for heating the aviary itself in the form of briquettes, can increase these efficiencies. The use of LPG is more environmentally friendly compared to wood, considering the average demands for the too forms of heating, due to the direct form of heat transfer to the broilers. It is advisable, on hot days, to raise the air speed using the evaporative cooling only in cases of high ambient temperature, as the introduction of water raises the exergy dissipated in the cycle.
Eriksson, Rehn Ida. "Mass balance and local characteristics of three glaciers in southern Norway, between 1980 and 2018 : An analysis of the mass balance and the local characteristics of Ålfotbreen, Storbreen and Gråsubreen." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-184671.
Повний текст джерелаWoocay-Prieto, Arturo. "Groundwater hydrochemical facies, flowpaths and recharge determined by multivariate statistical, isotopic and chloride mass-balance methods." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Повний текст джерелаStärner, Nathalie. "Mass balance analysis of phosphorous in Motala Ström River Basin : A focus on lake Roxen and Glan." Thesis, Linköpings universitet, Tema vatten i natur och samhälle, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-81971.
Повний текст джерелаMagnusson, Hans. "From recovery boiler to integration of a textile fiber plant : Combination of mass balance analysis and chemical engineering." Licentiate thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-37266.
Повний текст джерелаModern chemical technology is an extremely efficient tool for solving problems particularly in a complicated environment such as the pulp and paper industry. Here, examples are studied during which chemical technology is of fundamental importance. At normal conditions the molten salt mixture from the kraft recovery boiler flows down into the dissolving tank without hindrance. However, for certain kraft recovery boiler alternatives, knowledge of more precise data of the molten salts is required. The viscosity for the case of sodium carbonate and 30 mole% sulphide has been measured and is of the magnitude 2 – 3 cP at relevant temperatures. The main input of non-process elements (NPE) is down to the wood, and known problems include deposits in evaporators and decreasing efficiency in the causticization department. Green liquor clarification is an efficient kidney for many NPE. Magnesium added in the oxygen delignification does not form a closed loop. Integration of a prehydrolysis kraft pulp mill producing dissolving pulp with a plant producing viscose textile fiber could be of significant interest, as the handling of both alkali and sulphuric compounds can be integrated. Problems will however arise as the capacity of the pulping line and the chemical recovery has to be adjusted.
Spence, Joshua. "PERVIOUS CONCRETE: A HYDROLOGIC ANALYSIS FOR STORMWATER MANAGEMENT CREDIT." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4176.
Повний текст джерелаM.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering
Thuong, Nguyen Thi. "Heavy Metal Contamination in Water and Sediment of To Lich River in Inner City Hanoi." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180494.
Повний текст джерелаPhuthi, Thabisani Nigel. "Steelmaking with the ESS furnace : a model-based metallurgical analysis." Diss., University of Pretoria, 2020. http://hdl.handle.net/2263/75934.
Повний текст джерелаDissertation (MEng)--University of Pretoria, 2020.
Materials Science and Metallurgical Engineering
MEng
Unrestricted
Yeung, Wai Yin. "Environmental concentrations, toxicology, and development of new methods for extraction and mass balance analysis of perfluorinated compounds in environmental samples /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-bch-b2374960xf.pdf.
Повний текст джерела"Submitted to Department of Biology and Chemistry in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves 211-239)
Runeskog, Henrik. "Continuous Balance Evaluation by Image Analysis of Live Video : Fall Prevention Through Pose Estimation." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297541.
Повний текст джерелаDjupinlärningstekniken Kroppshållningsestimation är ett lovande medel gällande att följa en person och identifiera dess kroppshållning. Eftersom kroppshållning och balans är två närliggande koncept, kan användning av kroppshållningsestimation appliceras till fallprevention. Genom att härleda läget för en persons tyngdpunkt och därefter läget för dess tryckcentrum, kan utvärdering en persons balans genomföras utan att använda kraftplattor eller sensorer och att enbart använda kameror. I denna studie har en kroppshållningsestimationmodell tillsammans med en fördefinierad kroppsviktfördelning använts för att extrahera läget för en persons tryckcentrum i realtid. Den föreslagna metoden använder två olika metoder för att utvinna djupseende av bilderna från kameror - stereoskopi genom användning av två RGB-kameror eller genom användning av en RGB-djupseende kamera. Det estimerade läget av tryckcentrat jämfördes med läget av samma parameter utvunnet genom användning av tryckplattan Wii Balance Board. Eftersom den föreslagna metoden var ämnad att fungera i realtid och utan hjälp av en GPU, blev valet av kroppshållningsestimationsmodellen inriktat på att maximera mjukvaruhastighet. Därför användes tre olika modeller - en mindre och snabbare modell vid namn Lightweight Pose Network, en större och mer träffsäker modell vid namn High-Resolution Network och en model som placerar sig någonstans mitt emellan de två andra modellerna gällande snabbhet och träffsäkerhet vid namn Pose Resolution Network. Den föreslagna metoden visade lovande resultat för utvinning av balansparametrar i realtid, fastän den största felfaktorn visade sig vara djupseendetekniken. Resultaten visade att användning av en mindre och snabbare kroppshållningsestimationsmodellen påvisar att hålla måttet i jämförelse med större och mer träffsäkra modeller vid användning i realtid och utan användning av externa dataprocessorer.
Fan, Xiaoya. "Dynamics underlying epileptic seizures: insights from a neural mass model." Doctoral thesis, Universite Libre de Bruxelles, 2018. https://dipot.ulb.ac.be/dspace/bitstream/2013/279546/6/contratXF.pdf.
Повний текст джерелаDoctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
Krohn, Jeremy P. "PERFORMANCE ANALYSIS OF A SUCCESSIVE ALKALINITY PRODUCING SYSTEM TREATING ACID MINE DRAINAGE AT SIMMONS RUN IN COSHOCTON COUNTY, OHIO." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1173151741.
Повний текст джерелаRafiee, Nima. "Process design and energy efficiency analysis of an oil and gas processing plant." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаGrimaldi, David Andres. "Dissolved Gases and a Carbon Dioxide Balance from the San Vicente Geothermal Fieldin El Salvador, Central America." Ohio University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1615276127141058.
Повний текст джерелаDang, Yu. "Value-added Conversion of Waste Cooking Oil, Post-consumer PET Bottles and Soybean Meal into Biodiesel and Polyurethane Products." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468591615.
Повний текст джерелаHedfors, Jim. "Force Budget Analysis of Glacier Flow : Ice Dynamical Studies on Storglaciären, Sweden, and Ice Flow Investigations of Outlet Glaciers in Dronning Maud Land, Antarctica." Doctoral thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4219.
Повний текст джерелаThis thesis contributes to the understanding of glacier response to climate change by ice dynamical studies on Storglaciären, Sweden, and Bonnevie-Svendsenbreen, Kibergbreen and Plogbreen in Dronning Maud Land, Antarctica. Ice surface velocities, ice geometry and temperature information is fed through a force budget model to calculate ice mass outflux of these glacial systems via three-dimensional stress distributions for a flux-gate.
Field data were collected through repeated DGPS and GPR observations on Storglaciären between July 2000 to September 2001 and on Kibergbreen and Plobreen during the SWEDARP 2002/03 expedition to Antarctica. The work was strongly supported by remotely-sensed information.
The results from Storglaciären show a strength in the force budget model to discern both spatial and temporal variability in ice dynamical patterns. It highlights the influence of seasonality and bedrock topography upon glacier flow. A modeling experiment on Bonnevie-Svendsenbreen suggested that ice temperature increases substantially under conditions of high stress (≥0.4 MPa) due to strain-heating. This provides a positive feedback loop, increasing ice deformation, as long as it overcomes the advection of cool ice from the surface. These results explain, to some extent, the mechanism behind fast flowing ice streams. Mass flux caclulations from Bonnevie-Svendsenbreen suggest that the outflux given from force budget calculations can be used as a gauge for influx assuming steady state conditions. Plogbreen receives an influx of 0.48±0.1 km3 a-1 and expedites a discharge volume of 0.55±0.05 km3 a-1. This indicative negative mass balance is explained by a falling trend in upstream accumulation and the recent rise in global sea level, as it is likely to induce glacier acceleration due to a reduction in resistive forces at the site of the gate. This result is comparable with other Antarctic studies reporting negative mass balances, e.g. from WAIS, as caused by changes in the global atmospheric circulation pattern.
Simonetti, Emeline. "Contribution au développement et à la validation de méthodes fondées sur la technologie embarquée pour l'analyse quantitative de la locomotion et la rééducation fonctionnelle de la personne amputée de membre inférieur." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAE052.
Повний текст джерелаOne key objective during the rehabilitation of people with lower-limb amputation fitted with a prosthesis is the restoration of a physiological and energy-efficient gait pattern minimizing falling risks due to the loss of balance. Few practical tools are available to provide quantitative data to assist the follow-up of patients in the clinical routine. The development of wearable sensors offers opportunities to quantitatively and objectively describe gait in ecological situations. In this context, the aim of the thesis is to contribute to the development of wearable tools and protocols to support the functional rehabilitation of lower-limb amputees by providing clinically relevant quantitative data. Two complementary approaches have been implemented. The first approach consists in developing biomechanical models of the human body in order to retrieve biomechanically founded parameters. A protocol allowing to accurately estimate the body center of mass acceleration and instantaneous velocity has therefore been proposed based on gait data of ten people with transfemoral amputation and was validated in one person with transfemoral amputation. The second approach consists in identifying patterns in the signals measured by wearable sensors to extract concise descriptors of gait symmetry and dynamic balance. The clinical relevance and reliability of these descriptors have been investigated for the first time in people with lower-limb amputation. The work produced in the course of this thesis has contributed to the clinical transfer of wearable sensors into the clinical practice through the identification of clinically and biomechanically relevant parameters and the validation of original algorithms allowing to quantitatively describe the gait of lower-limb amputees
Persson, Magnus. "Nutrient limitation for coastal areas and estuaries in the Baltic Sea : Applying linear regression analysis and TN/TP ratio to determine the limiting nutrient." Thesis, Uppsala universitet, Institutionen för ekologi och genetik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-335780.
Повний текст джерелаSyftet med detta projekt var att bestämma det begränsande näringsämnet för ett antal kustområden i Östersjön. Frågan huruvida fosfor eller kväve är det begränsande näringsämnet i kustområden runt Östersjön har varit omdiskuterad under flera år och undersökts vid ett flertal tillfällen. I denna studie testades tre metoder, i fem olika kustområden, med syftet att fastställa det begränsande näringsämnet. Först användes linjär regressionsanalys med uppmätta värden på TP och TN koncentrationer tillsammans med klorofyll-a och Secchidjup. Empirisk data insamlades från övervakningsprogram där prover tagits sedan 1970- och 80-talet. Medelvärden beräknades för perioden maj till september för alla områden förutom ett, där undersöktes perioden april till oktober. Sommarmedelvärdena för TN/TP kvoten analyserades också för alla områden med avseende på Redfield kvoten. Slutligen genomfördes massbalansberäkningar med data för de externa belastningarna av TP och TN, dessa beräkningar kalibrerades sedan med uppmätta värden på koncentrationen i ytvattnet (0–10 m). Utifrån beräkningarna erhölls värden på den externa och den interna belastningen. Dessa belastningar testades med linjär regression för ett samband med de uppmätta värdena på Secchidjup och klorofyll-a. Metoden att använda linjär regressionsanalys med empiriskt uppmätta koncentrationer och djup, gav generellt ett oklart resultat. Detta var en följd av att halterna av både TP och TN i regel följdes åt, vilket fick konsekvensen att korrelationskoefficienterna för TP och TN ofta var lika stora. Samma problem uppstod för regressionsanalysen med belastningarna, då även dessa ofta följde varandra, men även motsade resultatet med koncentrationerna. Analysen av TN/TP kvoten tydde på att ett område var fosforbegränsat och ett område möjligen var kvävebegränsat. För de övriga tre områdena skiftade TN/TP kvoten under åren mellan kväve- och fosforbegränsning. De oklara resultaten gjorde det svårt att dra en övergripande slutsats. Däremot vid analysen av de enskilda områdena uppvisade tre av de fem områdena tecken på fosforbegränsning, även om detta inte kunde med säkerhet fastställas. Det var huvudsakligen två faktorer vars inverkan anses ha haft stor betydelse för det oklara resultatet. Den första faktorn var uppmätt data, vars frekvens och omfattning skiljde sig avsevärt mellan år och platser. Följaktligen försvårades beräkningarna av koncentrationerna och tillförlitligheten i hur representativa värdena var. Den andra och avgörande faktorn var de matchande trenderna hos både koncentrationerna och belastningarna. För att förbättra resultatet kan ett näringsämne ändras, medan det andra näringsämnet hålls relativt konstant. Problemet med att genomföra ett sådant experiment skulle vara att kontrollera inflödet av näringsämnen från närliggande hav.
Eyries, Pascal. "A dynamic distributed-parameter modeling approach for performance monitoring of oral drug delivery systems." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0501103-161142.
Повний текст джерелаKeywords: mass balance approach; bioavailability; drug delivery; dynamic modeling; partial differential equations; sensitivity analysis; dynamic simulations. Includes bibliographical references (p. 62-67).
Howells, Christopher Corey. "The Modeling and Analysis of the Apoptotic BAD/tBID/BAK Pathway as a Chemical Reaction Network." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/26915.
Повний текст джерелаPh. D.
Claverie, Etienne. "Modélisation de la température du sol avec un bilan d’énergie, application à la prédiction de l’émergence du maïs (Zea mais)." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC028/document.
Повний текст джерелаThe beginning of crop growth is influenced by soil temperature and water content near the surface. We have developed a model that predicts the local temperature and water content surrounding the seed using easily available meteorological data. Our global sensitivity analysis helped us identify the components of the model with the largest contribution to the output uncertainty. After calibration, the model showed less than 10 % relative error for temperature and water content at 30 cm. In standard sowing conditions in north-western Switzerland, the emergence was better predicted when using our simulated seed bed temperature than air temperature, the classical proxy variable. Combining the emergence model with soil temperature simulation, an accurate prediction of emergence was achieved. This work is an example of applying complex biophysics model for understanding an agronomic problem. The results of this work will participate in optimising breeding efforts for cold-tolerant crop varieties. Future investigations should consider a finer modelling of processes for evaporation and emergence
Hvizdoš, Pavel. "Aplikace Balanced Scorecard jako nástroj řízení strategie společnosti Formy Tachov, s. r. o., divize Opravna." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-11487.
Повний текст джерелаHarena, Tchamse. "Essai de validation et perspectives d'application en agrometeorologie d'un modele de simulation de la croissance et du developpement du mais : ceres-maize." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF2D214.
Повний текст джерелаHUI, LAI SHU, and 賴淑惠. "Mass balance analysis on the lateritic soils of Taoyuan tableland." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/4w2z4y.
Повний текст джерела國立彰化師範大學
地理學系
102
There are terrace landforms in the Taoyuan tableland. Previous studies has correlated these geomorphic surface based on various methods. The most recently documented result was based on the technique determined by the time-depending physical properties. However, the equivalent results on chemical properties has not been proved or tested. In this study, five soil profiles sampled from the Taoyuan tableland were examined for the degree of chemical weathering by applying the theorem of mass balance. The soil prosperities of volumetric density, volume, and chemical composition were measured and used in the calculation for the comparison of soil before and after weathering. Titanium is the trace element considered immobile from leaching during soil development, and serves as a reference during the calculation of mass balance. The continuity of whole profile was examined by checking the concerned ratios of texture and element. With the bottom soil of sampled profile as parent material and the titanium element as reference for mass balance calculation, the variation of elements in soil before and after weathering was measured to explore the extent of evolution and chemical weathering of the sampled soil from Taoyuan plateau. From results of this study reveals that there is continuity among these five soil samples, representing no obvious incidents that interfered with the evolution process. Mass balance calculation shows that, among base cations, ions such as potassium, sodium, and magnesium are easy to weather and leach from the soil samples. The increase of TY-SF sodium is probably due to the neighborhood of sample location with sea. The elements of sodium might relevantly come from ocean, rainfall and the atmosphere. As to elements such as iron, aluminium, manganese, etc., among them, the loss of iron element is relatively obvious. The iron elements mostly run off and increasingly deposited to the lower layer. The silicon is the element with the most concentration in soil samples. Moreover, with less variation, the titanium elements are more significantly stable than the others in the soil. The evolution extent of five soil profiles were estimated in this study by judging the quantity of lost iron in soil, which was summarily found to be TY-SF> TY-BGG> TY-PJ and TY-2d> TY-3a. Among them, the iron elements run off the most in TY-SF profile and the least in TY-3a profile, which are perhaps due to an older and younger stratum respectively. These results agree with that of Guo’s study (2013), which investigated the formation of cascaded terraces in Taoyuan plateau based on physical properties. This also indicates that the analysis approach based on chemical properties is feasible and complementary to the analysis approach based on physical properties.
szu-tzu, Chen, and 陳思慈. "Mass balance analysis on the lateritic soils of Tsaotun river terraces." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/87716773189146564839.
Повний текст джерела國立彰化師範大學
地理學系
98
Mass balance analysis of soil provide relationship among bulk density, volume changes and soil chemical composition in relation to parent material. By estimating the gain, loss and translocation of elements in soil profile or horizons allows us to investigate the interactions between the soil evolution and the environments. Six soil pedons were sampled from Tsaotun river terraces in central Taiwan. This study based on the ratios of particle size and elements to identify parent material uniformity. The bottom (least weathered) horizon of the soil profile was assumed for the parent material. Zr was used as immobile element to calculate mass balance analysis. The comparison of the variation in elements during weathering in different partize size fraction, help to understand the degree of soil evolution. The six pedons didn’t indicate LDs (Lithologic Discontinuities), which suggest no disturbing events occurred in pedologic process. The result of mass balance analysis indicated that gain and loss of elements varied in the soil profiles. K and Mg are the easier leaching loss of base cations than others from the soil profile in the weathering process. Fe, Al and Mn loss from the upper horizons, redistribute to the lower horizons, and transform form sand fraction to silt and clay fraction, whereas Fe and Al are more significant. Si has the most concentration in the profile; thus Si has the most mass flux. The slight loss of Ti indicates that Ti is more immobile than other elements. The volumetric change of the profile TTN-1a and TTN-1b are collapsed. It maybe resulted from the loss of primary elements or erosion, and causing the thickness less than the profile TTN-2 and TTN-3. By using the property that Fe and Ti are gradually enriched in silt and clay fraction in long term weathering, the evaluation of the degree of soil development is TTN-1a≧TTN-1b>TTN-2≧TTN-3>TTN-4>TTN-5. By comparing the negative mass flux, the negative mass flux of the highest pedon of studied Tsaotun river terraces is less than Pakua tableland. Thus, according to the degree of soil development and the calculated results of chemical weathering, the age of studied soil on Tsaotun river terraces is probably younger than the soil evolution on Pakua tableland.
Chu, Kuan-Yan, and 朱寬彥. "Mass transfer analysis on the hollow fiber membrane absorption of CO2 using the mass balance law." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/06994182967118193972.
Повний текст джерела元智大學
化學工程與材料科學學系
96
The main study focused on the model building of hollow fiber absorption of CO2 and the mass transfer theory. The model was based on non-wetted mode in which the absorbent (water or MEA) flows into shell side and the well-mixing gas (CO2/N2) flow into lumen side; whereas the liquid flow in the shell side was characterized by Happel’s free surface model. After the experiment, we used the mass balance law to simulate the system and check up the results. During the operating conditions, the mass transfer coefficient (Koverall) of water to CO2 was positive proportion to the liquid flow rate, and had no difference with the gas flow rate. When the absorbent was MEA, the tendency was the same as water, and Koverall of MEA is bigger than water and the difference became more pronounced as the increasing of liquid flow rate. For the simulation result of water absorbet or MEA absorbent in non-recycle way, the standard deviation between experimental results was less than 10, so we can announce that the the model we used can describe the system well. In the simulation results of MEA in non-recycle way, we found that the effective length was changed more pronounced with concentration of MEA, effective length was positive proportion to the concentration of MEA. After we build up the simulation method, we used the model to simulate the system when the absorbent was recycled and the larger module. After the simulation, we can know that the physical absorption was more siginificantly influenced by liquid flow rate, the time when gas output concentration was equal to inlet concentration, and chemical absorption was more siginificantly influenced by gas flow rate.
Tasi, Chao-Yuan, and 蔡兆原. "Analysis of Humic Acid Fouling during Ultrafiltration Using the Mass Balance Theory." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/37585476950838885898.
Повний текст джерела國立臺灣大學
環境工程學研究所
91
The influence of operational parameter on the fouling behavior and resistances for ultrafiltration of humic acid were studied. Flux decline was analyzed by the resistance-in-series model. In filtration processes the amount of humic acid accumulated on membrane’s surface was calculated by mass balance theory. According to the fouling resistance we provide a simple equation for forecasting the amount of humic acid accumulation on membrane’s surface. There are three operational parameters in this experiment including transmembrane pressure, pore size of membrane and TOC concentration of inflow water. The results showed that TOC concentration has smaller influence on flux decline. Higher transmembrane pressure and larger pore size have greater influence on flux decline. Although TOC concentration does not have great effect on flux decline but it has large impacts on humic acid fouling behavior. After 24 hours ultrafiltration there is 0.73 g/m2 humic acid accumulation on membrane’s surface when TOC concentration is 2 mg/L and transmembrane pressure equals to 10psi. At the same condition but using TOC concentration of 9 mg/L, the fouling accumulation on membrane’s surface has greatly increased to 3.896 g/m2, which has a 434% increase. By using 30k and 100k membrane, it both has an increase of 140% or more. TOC concentration is a minor factor on flux decline, but it is a deciding factor for fouling accumulation on surface membrane. Irreversible resistance has great dependence on transmembrane pressure. When transmembrane pressure was increased the accumulation becomes more compact. Key words: resistance in series model, mass balance theory, fouling resistance.
Barros, Ana Isabel Faustino. "Mass balance analysis of carbon and nitrogen in industrial mixotrophic microalgae cultures." Master's thesis, 2014. https://repositorio-aberto.up.pt/handle/10216/88645.
Повний текст джерелаBarros, Ana Isabel Faustino. "Mass balance analysis of carbon and nitrogen in industrial mixotrophic microalgae cultures." Dissertação, 2014. https://repositorio-aberto.up.pt/handle/10216/88645.
Повний текст джерела蕭雅文. "Mass balance analysis on the lateritic soils of Tadu tableland and Hsinhse area." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/20170837930552203321.
Повний текст джерелаLi, F. Y., and 李峰佑. "Design and Modal Analysis for Dynamic Balance Mass of the Reciprocating Air Compressor Crankshaft." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/83007775334539621177.
Повний текст джерела國立彰化師範大學
機電工程學系
96
Improving the vibration problem is the main goal of this study for finding the optimal crankshaft counterweight of the reciprocating compressor. Therefore this research mainly aims for designing the appropriate crankshaft counterweight with effective way to reduce the vibration for a commercial reciprocating compressor. As the counterweight reduces the kinetic orbit of crankshaft connecting rod, the decreasing unbalanced orbit corresponds to less vibration. First, we will establish an analytical model for computing the counterweight of the crank based on the dimension of air compressor and drive specifications. Design issue is created for a new crankshaft that fit the air compressor with vibration and noise requirements. Finite element software is used to simulate the modal and deformed situation under variant weight of the crank. Besides, spectrum analyzer for modal testing is introduced for analyzing signals from impulse hammer and accelerometer. Through analytical, simulation and experimentation, this research develops a complete process for crankshaft counterweight design. The designed crankshaft counterweight is implemented and verified through vibration reduction of 50.62%. Experimental result validates this research output.
Mota, Roberto Duarte. "SABIC’s functional forms plant mass balance, production and waste analysis, and sawdust removal and elimination." Master's thesis, 2017. http://hdl.handle.net/10400.26/25450.
Повний текст джерелаChiou, Ming-Jong, and 丘明中. "A Study on Mass Balance Analysis of Fly Ash and Its Heavy Metals of MSW Incinerator." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/78907712954107863405.
Повний текст джерелаJhang, Wei-Jhong, and 張維中. "The Evaluation of Sludge Anaerobic Digestion in Public Sewage Treatment Plant - Ultrasonic Hydrolysis & Mass Balance Analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/fey369.
Повний текст джерела朝陽科技大學
環境工程與管理系
103
This study mainly focused on public sewage treatment plants to conduct the effectiveness evaluation of anaerobically digested sludge and respectively conducted the sludge ultrasonic analysis and mass balance analysis. After the sludge ultrasonic analysis, the organic matter release, sludge reduction, and gas effects of hydrolysis products were discussed. Furthermore, the study simultaneously carried out domestic sewage plant data collection and conducted a mass balance analysis to establish the assessment framework for the sludge treatment units. The experimental results show that in the ultrasonic sludge hydrolysis in terms of dissolution of CODs, concentrated and digested sludge had notable effects, but in the sludge reduction portion, digested sludge had no significant change. In the concentrated sludge after the lengthening of ultrasonic processing time, the reduced rate of TS or SS significantly decreased; thus, the sludge after hydrolysis, biochemical methane production potential test, and concentrated sludge biogas production were as follows: untreated > 1 min > 5 min > 10 min; digested sludge 10 min ≥ 5 min > untreated > 1 min > 30 min. For concentrated and digested sludge after ultrasound hydrolysis, although dissolution of CODs increased and sludge (concentrated sludge only) decreased, gas production situation did not increase in the BMP test. From the data provided by each sewage treatment plant, the reported information showed no unity, and most of the sewage treatment plants did not have statistics on sludge volume. As a balance analysis could not be effectively conducted on each unit, the evaluation results of onsite field interviews and sampling showed that each unit reached the mass balance, the effectiveness of anaerobic digestion was also above standard, and the operating conditions were good. For the sludge unit to carry out an effectiveness evaluation, it is recommended that the test items and frequency be unified.
吳政緯. "The Design and Model Analysis of the Dynamic Balance Mass for the Crankshaft of a Two–cylinder Reciprocating Air Compressor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/37479110826794951081.
Повний текст джерела國立彰化師範大學
機電工程學系
99
Improving the vibration problem is the main goal of this study by finding the optimal crankshaft counterweight of the two-cylinder reciprocating compressor. Therefore this research mainly aims for designing the appropriate crankshaft counterweight with effective way to reduce the vibration of the two-cylinder commercial reciprocating compressor. First, we will establish an analytical computation and procedure for calculating counterweight of the crank based on the dimension of air compressor and drive specifications. Second, design issue is created for a new crankshaft that fit the air compressor with vibration and noise suppression requirements. Finite element software of ANSYS is used to do the simulation for the modal analysis of the crankshaft. A new crankshaft counterweight is proposed effectively to increase the first mode of the natural frequency for the crankshaft of the compressor.
Svedin, Claes. "An energy balance analysis for current and future production of paper at Mondi Dynäs paper mill : A development project of current and future scenarios for the steam and condensate network with proposals for enhanced utilization of energy." Thesis, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-115895.
Повний текст джерелаBald, M. "Development of textural differentiation in soils: a quantitative analysis." Thesis, 2012. http://hdl.handle.net/2440/91783.
Повний текст джерелаA soil profile exhibiting strong textural differentiation between surface and subsurface horizons at Keyneton, South Australia, was sampled for quantitative and qualitative analyses of the processes responsible for development. From constant resistant mineral ratios throughout the profile it was concluded that the soil had formed from uniform parent material, suggesting that pedological processes had heavily influenced formation. Particle size distribution, clay mineralogy determined by XRD, and microstructural features indicated that clay accumulation in the subsurface was accompanied by a greater intensity of weathering in the surface horizons. The presence of void argillans in the B horizon provided strong evidence for the translocation of clay. Mass balance calculations showed significant volumetric expansion and mass gain throughout the entire profile, but greatest in the B horizons. Al, Fe, Na and Si were all gained in large quantities. The results indicate that clay translocation by illuviation is a dominant process in the development of textural differentiation, with some clay likely to have formed in situ.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical cinches, 2012
Dart, Robert C. "Gold-in-calcrete: a continental to profile scale study of regolith carbonates and their association with gold mineralisation." Thesis, 2009. http://hdl.handle.net/2440/61507.
Повний текст джерелаThesis (Ph.D.) - University of Adelaide, School of Earth and Environmental Sciences, 2009.
Buckley, John G., G. Cooper, C. N. Maganaris, and N. D. Reeves. "Is stair descent in the elderly associated with periods of high centre of mass downward accelerations?" 2012. http://hdl.handle.net/10454/9630.
Повний текст джерелаWhen descending stairs bodyweight becomes supported on a single limb while the forwards-reaching contralateral limb is lowered in order to make contact with the step below. This is associated with lowering of the centre of mass (CoM), which in order to occur in a controlled manner, requires increased ankle and knee joint torque production relative to that in overground walking. We have previously shown that when descending steps or stairs older people operate at a higher proportion of their maximum eccentric capacity and at, or in excess of the maximum passive reference joint range of motion. This suggests they have reduced and/or altered control over their CoM and we hypothesised that this would be associated with alterations in muscle activity patterns and in the CoM vertical acceleration and velocity profiles during both the lowering and landing phases of stair descent. 15 older (mean age 75 years) and 17 young (mean age 25 years) healthy adults descended a 4-step staircase, leading with the right limb on each stair, during which CoM dynamics and electromyographic activity patterns for key lower-limb muscles were assessed. Maximum voluntary eccentric torque generation ability at the knee and ankle was also assessed. Older participants compared to young participants increased muscle co-contraction relative duration at the knee and ankle of the trailing limb so that the limb was stiffened for longer during descent. As a result older participants contacted the step below with a reduced downwards CoM velocity when compared to young participants. Peak downwards and peak upwards CoM acceleration during the descent and landing phases respectively, were also reduced in older adults compared to those in young participants. In contrast, young participants descended quickly onto the step below but arrested their downward CoM velocity sooner following landing; a strategy that was associated with longer relative duration lead-limb plantar flexor activity, increased peak upwards CoM acceleration, and a reduced landing duration. These results suggest that a reduced ability to generate high eccentric torque at the ankle in the forward reaching limb is a major factor for older participants adopting a cautious movement control strategy when descending stairs. The implications of this CoM control strategy on the incidences of falling on stairs are discussed.
Tamáskovics, Nándor. "Allgemeines unscharfes Verfahren zur rechnerischen Tagesbruchprognose." 2019. https://tubaf.qucosa.de/id/qucosa%3A34486.
Повний текст джерелаThe use of sites with artificial or natural openings in the underground includes an elevated technical risk, as constructions can be constrained due to unplanned deformations of the subsoil. To the theoretical analysis of pothole subsidence in practical settings on a layered site, the ”General Failure Mass Volume Balance Method”can be applied with a low number of input parameters. Both the input values of a theoretical model for pothole subsidence analysis and the volume of prognosed surface failures can be regarded as random variables. The randomset- theory offers a practical solution to include the stochastic nature of the pothole subsidence process into a theoretical model with limited required computational effort. The prognosed volumina and the corresponding probabilities of occurrence can be used for a risk analysis of protected objects on sites with expected pothole subsidence.
Chen, Siang-Yi, and 陳湘怡. "Analyses on Mass-Energy Balances and Cogeneration in an Integrated Steel Mill." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/49373736390729759438.
Повний текст джерела國立成功大學
機械工程學系碩博士班
92
In the first part of this research, the steel-making process and mass-energy balance data in China Steel Corporation were collected and analyzed so as to provide guidelines for localized mass-energy integration. In the analysis, the concept underlying Kaohsiung Coastal Industrial Park were taken as the starting point. China Steel Corporation is an integrated steel mill, capable of processing raw materials until final products. We focused our attention on the mass-energy flow during coke making, sintering, iron making and steel making. The second part of this research was concerned with the economical analysis of the electricity-steam cogeneration in the China Steel Corporation by using the operational characteristics and cost of coal as parameters. Comparison of economical benefit based on electricity-steam ratio and capacity for different cogeneration systems has been done. The operational limit and economical benefit of a conventional one-boiler one-generator system and a two-boiler two-generator system was evaluated and compared. For a two-boiler two-generator system, the routing of main steam flow could be more diverse, but the trend of net income is the same as it is for a one-boiler one-generator system. The limitation to the operation of the two-boiler two-generator system comes from the design limits of the generator. When the combined rate of steam flow of the two boilers is high, it is more likely to be affected by the capacity of the generator. The present research results can be utilized in the establishment of a localized mass-energy integrated industrial park to achieve energy conservation and pollution reduction.
Lin, Dian-Yu, and 林典諭. "Dynamic and Analyses for the Balance Mass of the Crankshaft of a Two-cylinder Reciprocating Air Compressor." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/45441242069274739104.
Повний текст джерела國立彰化師範大學
機電工程學系
102
The purpose of this study is to suppress the problem of vibration which occurs in a running two-cylinder reciprocating compressor. Determining an optimal crankshaft counterweight and narrowing the trajectory orbit of the crankshaft connecting rod mechanism is achieved. First, we will select an analytical model for computing the counterweight of the crank based on the dimension of air compressor and drive specifications. Design issue is created for a new crankshaft that fit the air compressor with vibration requirements. Use of finite element software was used to simulate the modality of the two cylinders. In additions, the inertial force influenced to the crankshaft under different counterweight design was simulated. Simulation results by using Solid Works software show the new counterweight was able to reduce the crankshaft’s eccentric by 4mm and the orbit trajectory by 10mm. This study provides the procedures pertaining to the bettering performance and assessment for an existing reciprocating compressor.
Rufino, Paulo Daniel Oliveira. "Balanced scorecard aplicado à Loja Adidas, Outlet Freeport Alcochete." Master's thesis, 2016. http://hdl.handle.net/10400.5/13178.
Повний текст джерелаWe live in a world where all the resources are limited, and the changes happens constantly, in that way only the efficiencies organizations can aspire the best results and success. The organizations must unite to achieve the initial strategic goals, reinforcing the team work, responsibility and the efficiency. The role of the manager is fundamental in the organization. He has the responsibility to lead his team for the goals established, managing the internal conflicts and making the decisions, and this only can be made if he has a deep knowing of the organization and the external environment, helping him for the decisions in real time. In that way, the methodology of the Balanced Scorecard was applied in the Adidas store – Outlet Freeport Alcochete, to evaluate and measure the performance of the organization in the, financial, costumer, internal processes, development and learning perspectives, using the initial strategic goals, performance indicators, current goals and consideration of the cause-effect between the several strategic objectives for is achievement. The Balanced Scorecard is an important and useful tool to support the management job, using the Strategic Map gives us a clear image of the strategic lines, supporting the communication as well. In order to evaluate the organization performance in the short time, the Balance Scorecard it´s indispensible for the organization success in real time.