Дисертації з теми "Accumulated performance"
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Pollitt, Joanna T. "Accumulated response in live improvised dance performance." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2001. https://ro.ecu.edu.au/theses/1038.
Повний текст джерелаRamsbottom, Roger. "Accumulated oxygen deficit and running performance in man." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/26897.
Повний текст джерелаQasem, Hassan. "Effect of accumulated dust on the performance of photovoltaic modules." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/11735.
Повний текст джерелаHetrick, Ronald. "The effects of accumulated wealth and corporate governance quality on nonprofit performance." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/492512.
Повний текст джерелаD.B.A.
This dissertation explores the relationship between governance quality, accumulated wealth, and organizational performance in U.S. nonprofits. Accumulated wealth in nonprofits has been previously shown to reduce overall support contributions because donors perceive less need for financial resources. Further, the absence of owners leads to weaker monitoring mechanisms and greater agency problems. Despite the size of the nonprofit sector (5.5% of GDP and 9% of employment), the impact of governance in organizations with accumulated wealth has not been studied much. Using recent data on governance practices at nonprofits reported on IRS Form 990’s and structural equation modeling/partial least squares analysis, this study finds that the strength of governance practices in nonprofits reduces the negative impact of accumulated wealth in Arts, Education, Environment, Health, Higher Education, Hospitals, Human Services, International, and Religious organizations. This paper demonstrates how agency theory and stakeholder theory complement each other when the nonprofit business model has a traditional revenue structure similar to its for-profit counterpart. For practitioners, it shows that combining a strong governing body, governing policies, compensation policies, and transparency policies, helps hold management accountable. This is necessary for the more efficient and effective execution of a nonprofit’s mission.
Temple University--Theses
Altimari, Leandro Ricardo. "Efeito da ingestão de cafeina sobre o deficit acumulado de oxigenio, sinal eletromiografico dos musculos superficiais do quadriceps e desempenho fisico de ciclistas." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275171.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Educação Fisica
Made available in DSpace on 2018-08-11T14:01:30Z (GMT). No. of bitstreams: 1 Altimari_LeandroRicardo_D.pdf: 2753845 bytes, checksum: 72487f2f03add9833dd0a2e582f711e2 (MD5) Previous issue date: 2008
Resumo: O propósito do presente estudo foi investigar o efeitos da ingestão de cafeína (6 mg.kg-1) sobre o desempenho físico e mecanismos associados à fadiga de ciclistas em esforços supramáximos. Fizeram parte do estudo dez ciclistas com idade média de 27,5 ± 4,1 anos e tempo médio de prática na modalidade de 9,8 ± 4,7 anos. Os indivíduos foram submetidos a diferentes situações experimentais: 1) Determinação do consumo de oxigênio de pico (VO2pico) e limiar ventilatório (LV2); 2) Determinação da demanda acumulada de oxigênio (DEO2) (4 sessões de exercício submáximo - 60, 70, 80 e 90% do VO2pico), e 3) Teste retangular supramáximo (110% do VO2pico) para determinação do MAOD realizado em duas situações distintas (CAF - cafeína e PL - placebo/maltodextrina) aleatoriamente, em sistema duplo cego, com no mínimo 72 horas de intervalo entre os testes. Os sujeitos foram submetidos a mensuração de parâmetros antropométricos e anamnese nutricional para determinação do habito alimentar. Os sinais EMG foram coletados durante o teste retangular supramáximo (MAOD). O esforço percebido utilizando a escala de 6-20 pontos de Borg (1982) foi reportado a cada 30s de exercício no teste retangular supramáximo (MAOD). A concentração de lactato sangüíneo foi analisada em repouso (-60 min), imediatamente antes (0 min) e após (1, 3, 5, 7 e 10 min) o teste de MAOD nas condições CAF e PL. Os resultados demonstraram que o tempo de exaustão, a DEAO2 e o MAOD foram significantemente maiores na condição CAF comparada a PL (P<0,05). Não foram constatadas diferenças significantes na atividade EMG (RMS) dos músculos VL, VM, RF e QF integrados entre as condições CAF e PL em todos os períodos de tempo analisados (P>0,05). Quando comparado os slopes de FM dos músculos VL, VM, RF e QF integrados entre as condições CAF e PL estes se mostraram significantemente menores para ambos os músculos na condição CAF (P<0,05). O slope da PSE foi significantemente maior na condição CAF comparado a PL (P<0,05). Entretanto, o y-intercepto apresentou valor significantemente menor na condição CAF comparado a PL (P<0,05). Vale ressaltar que o valor de PSE inicial (30 s) medido durante o teste de MAOD na condição CAF foi significantemente menor comparado a PL (P <0,05). Não foram constatadas diferenças significantes nas concentrações de lactato sanguíneo entre as condições CAF e PL (P>0,05). Podemos concluir que a ingestão de cafeína (6 mg.kg-1) melhorou o desempenho anaeróbio pela atenuação da taxa de fadiga muscular causada por provável aumento na velocidade da condução dos impulsos nervosos para as fibras musculares
Abstract: The purpose of this study was to investigate the effects of the caffeine ingestion (6 mg.kg-1) on performance and mechanisms associated with the fatigue of cyclists in efforts supramaximum. Ten cyclists (age 27.5 ± 4.1 years; cycling experience 9.8 ± 4.7 years) were submitted to different experimental situations: 1) determination of the peak oxygen consumption (VO2pico) and ventilatory threshold (LV); 2) Determination of the accumulated oxygen demand (DEO2) (4 sessions of submaximum exercise - 60, 70, 80 and 90% of VO2pico), and 3) Supramaximum constant load test (110% of VO2pico) for determination of MAOD accomplished randomized in two different situations (CAF - caffeine and PL - placebo/maltodextrine), in double blind way, with an interval among tests with at least 72 hours. The subjects were submitted to anthropometric measurement and nutritional anamnesis for determination of the eating habits. The EMG signs were collected during the supramaximum constant load test (MAOD). The ratings of perceived exertion (PSE) were acquired using the 6-20 Borg scale (1982) being reported at each 30s of exercise during MAOD test. The blood lactate was analyzed in rest (-60 min), immediately before (0 min) and after (1, 3, 5, 7 and 10 min) during the MAOD test at CAF and PL conditions. The results demonstrated that the time of exhaustion, DEAO2 and MAOD were significantly larger in CAF than in PL condition (P < 0.05). Significant differences were not verified in the EMG activity (RMS) from Vastus Lateralis (VL), Vastus Medialis (VM), Rectus Femoris (RF) and integrated Quadriceps Femoris (QF) muscles among CAF and PL conditions during all of the analyzed periods (P > 0.05). When compared the mean power frequency (MPF) slopes of the muscles VL, VM, RF and QF integrated among the conditions CAF and PL these smaller significantly were shown for both muscles in the condition CAF (P < 0.05). The PSE slope was significantly higher during CAF when compare to PL condition (P < 0.05). However, the y-intercept presented significantly smaller value in CAF than in PL condition (P < 0.05). It is worthwhile to highlight that the initial value of PSE (30 s) measured during the MAOD test during CAF condition was significantly smaller than PL (P < 0.05). No significant differences were verified in the blood lactate concentrations between CAF and PL conditions (P > 0.05). It is possible to conclude that caffeine ingestion (6 mg.kg-1) improved anaerobic performance with the reduction of the rate of muscle fatigue, which could be explained by an increase in the firing rate of the neural impulse to muscles fibers
Doutorado
Ciencias do Desporto
Doutor em Educação Física
Te, Slaa Chad. "Performance of the Producer Accumulator in Corn and Soybean Commodity Markets." Thesis, South Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10620800.
Повний текст джерелаThis research quantifies risk reduction and performance of the producer accumulator contract in corn and soybean markets. To quantify performance, we use three alternative theoretical pricing models to estimate historical producer accumulator contract specifications in corn and soybean markets. We then compare the performance of the producer accumulator to eight alternative agricultural marketing strategy portfolios that are also used in new generation grain contracts.
The performance measures we compare are: average bushel price that would be received by the producer, daily portfolio risk, and the Sharpe ratio. The period we examine performance was between 2008 and 2017. We investigate performance of the producer accumulator executed during each year, month, whether the contract was executed during the growing season or non-growing season, and beginning and following an uptrend, neutral trend, and downtrend ranging in length from 25 to 100-days. Specific to the producer accumulator, we also quantify bushels accumulated during the contract period.
We find the average price the producer would expect to receive adopting an accumulator to slightly underperform the average price they would receive with a long futures portfolio in corn and slightly outperform long futures in soybeans. Nevertheless, the accumulator significantly reduces daily risk compared to the long futures portfolio. Indeed, producer accumulator portfolios produced average daily Sharpe ratios exceeding all other simulated risk management strategies in corn and soybeans on an average annual and average aggregate basis from 2008-2017. Consequently, the producer accumulator portfolio offered corn and soybean producers the best risk adjusted return to hedge production during this time-frame.
Erdin, Enes. "Performance Of Parallel Decodable Turob And Repeat-accumulate Codes Implemented On An Fpga Platform." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610998/index.pdf.
Повний текст джерелаStorck-Gantois, Fanny. "Effet de la compression et de l’ajout d’additifs sur l’amélioration des performances d’un accumulateur au plomb." Paris 6, 2008. http://www.theses.fr/2008PA066370.
Повний текст джерелаSayah, Simon. "Impact de la formulation d'électrolytes sur les performances d'une électrode négative nanocomposite silicium-étain pour batteries Li-ion." Thesis, Tours, 2017. http://www.theses.fr/2017TOUR4025/document.
Повний текст джерелаThis study focuses on new electrolytes and additives in order to improve the cyclability of a Si0.32Ni0.14Sn0.17Al0.04C0.35 negative composite electrode (Si-Sn) and to obtain a stable electrolyte|electrolyte interface. Indeed, like most silicon-based materials, this high-capacity Si-Sn composite (over 600 mA.hg-1) currently suffers from a short cycle life due to volume expansion during charge-discharge processes leading to the degradation of the SEI. To improve the quality of the interface, two kinds of electrolytes were evaluated: (i) mixtures of alkyl carbonates EC/PC/3DMC in which a lithium salt (LiPF6, LiTFSI, LiFSI or LiDFOB) and additives like SEI builder (vinylene carbonate (VC) or fluoroethylene carbonate (FEC)) were added, (ii) ionic liquids (IL) based on quaternary ammonium (N1114+), imidazolium (EMI+) or pyrrolidinium (PYR+) cation, associated with delocalized charge anions such as bis(trifluoromethanesulfonyl)imide (TFSI-) or bis(fluorosulfonyl)imide (FSI-). The Walden diagram confirms the efficient dissociation of LiFSI and LiPF6 in EC/PC/3DM ensuring ionic conductivities as high as 12 mS.cm-1. Although possessing limited transport properties in such a ternary mixture compared to other salts, LiDFOB forms, without additional additives, an high quality SEI allowing the composite to provide the best performances in half cells (560 mA.hg-1 and 98.4% coulombic efficiency). The use of additive is however necessary to reach the objectives fixed by the ANR research project in terms of coulombic efficiency (>99.5%). In this case, the addition of 2%VC+10%FEC to the ternary mixture is the most interesting composition with LiPF6 as lithium salt. So, the Si-Sn nanocomposite material reaches 550 mA.h.g-1 during 100 cycles at C/5 with 99.8% efficiency. In IL, the best performances are achieved in [EMI][FSI]/LiFSI (1 mol.L-1). The performances of the Si-Sn composite reaches 635 mA.h.g-1 for 100 cycles at C/5 with coulombic efficiency close to 100%, without additives. This electrolyte formulation generates a stable SEI which the mainly mineral composition, is predominantly derived from the reduction products of FSI-
Lannelongue, Jérémy. "Accumulateurs hautes performances de type plomb-étanche-AGM avec collecteurs de courant à base de titane et de carbone flexibles." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI091/document.
Повний текст джерелаThe aim of this work is to present and proof new concept of high performance lead-acid cells using new thin-plate electrodes. The new approach allows increasing the energy density and the specific power of the battery without a penalty for its cycle and calendar lifetime. Flexible carbon support electroplated with lead and thin surface-modified titanium mesh/foil are used as current collectors. Parameters like electric resistance and active materials utilization have been evaluated successfully in long-term laboratory tests (deep-cycling, micro-cycling, cyclic voltammetry, impedance spectroscopy) using small-scale compressed lead-acid and lead-carbon cells with absorptive glass mat (AGM) separators. The thickness, the porosity and the expander loading are the key parameters which influence the evolution of the negative active material utilization. It has been found that the process of reversible hydrogen storage within the activated carbon used as main dopant of the negative plate competes with the Pb/PbSO4 electrode inhibiting its operation at carbon loading higher than 9.3 %m. The use of SnO2 coated titanium as positive current collector eliminates completely the appearance of corrosion-related battery failure. Multiphysics modeling based on these data will allow fitting to all the battery applications (power, energy)
Schlaifer, Perrine. "Performance Calculations and Optimization of a Fresnel Direct Steam Generation CSP Plant with Heat Storage." Thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116806.
Повний текст джерелаČajčíková, Jolana. "Energetický audit polyfunkčního objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-239943.
Повний текст джерелаKamp, William Hermanus Michael. "Redundant Number Systems for Optimising Digital Signal Processing Performance in Field Programmable Gate Array." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/4623.
Повний текст джерелаHlůšek, Josef. "Koncepční návrh výkonného kluzáku s pomocným elektrickým pohonem (dle EASA CS-22)." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400839.
Повний текст джерелаPanabiere, Eddie. "Synthèse et propriétés électrochimiques de nouveaux nitrures mixtes de lithium et métaux de transition pour électrodes négatives performantes d'accumulateurs lithium-ion." Phd thesis, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00952770.
Повний текст джерелаTeng, Sin Yong. "Intelligent Energy-Savings and Process Improvement Strategies in Energy-Intensive Industries." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433427.
Повний текст джерелаMeldrum, Kathryn Janet. "Measuring anaerobic performance in children using accumulated oxygen deficit." Thesis, 2004. https://vuir.vu.edu.au/15642/.
Повний текст джерелаWang, Ji. "Study on Accumulated Performance of a Solar Thermal Powered Adsorption Refrigeration System." Thesis, 2019. http://hdl.handle.net/2440/120966.
Повний текст джерелаThesis (MPhil) -- University of Adelaide, School of Mechanical Engineering, 2019
Chen, Chien-Ming, and 陳建明. "Study On Heat-Dissipation Performance For Accumulated Heat In LCM Superficial Coherence Thermo-Compression Equipment." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17867810454550953586.
Повний текст джерела國立成功大學
工程科學系專班
96
When electronic components or chemical materials are subjected to a high temperature environment for a long period of time, the operation lives of the components and the balance stability of the chemical materials inside a working machine will be affected. Currently, the air or water cooling is commonly used in the practical application of heat dissipation. Fins, which can increase the cooling area, are often utilized to raise the heat-dissipation efficient of these two cooling methods. In this thesis, water cooling with fins is used to transfer the heat accumulated in a working machine and the heat-dissipating performance is evaluated. In this work, an experimental model is built, which is a close system of cuboid shape. A heater, which is used to simulate the heat source, is fixed on or moved up and down repeatedly along an internal vertical surface of the cuboid. Four primary subjects are studied: (1) the comparison of heat-dissipating performances for different inlet water temperatures and heights of homemade water cooling module, (2) the comparison of heat-dissipating performances for homemade and bought water cooling modules, (3) the comparison of heat-dissipating performances for the water cooling module with electrical fans installed on the vertical surface of the cuboid or a fan on the module, (4) Evaluation of heat-dissipating performances for a heater moving up and down repeatedly. From the evaluation results of the heat-dissipating performance, it can be found that the cooling module with a fan on it is the best, the cooling module with fans installed on the vertical surface of the cuboid is the second best and the cooling module alone is the worst. Under the same working conditions, the thermal resistance of the best one is one half of that for the worst one and the best one is six times the decrease in air temperature of the cuboid of the worst one. In the heat-dissipation process, the condensed water is attached to the fins, which hinders the heat transfer in the worst one. The condensed water can be removed by the fan installed on the module so that the best one has the highest performance. With the same working conditions, the performance of the fixed heater is almost the same as that of the moving heater.
WANG, YUAN-KUO, and 王源國. "A study on the performance of electrospinning accumulated graphene/polyvinyl alcohol on the electrode of bio-electro-Fenton microbial fuel cells." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/17179624264944244057.
Повний текст джерела國立宜蘭大學
機械與機電工程學系碩士班
104
Electrospinning was based on high polymer material oriented. It is the processing technology to coordinated with the organic solvent and modulate electrospinning solution to make micro fiber even nanofiber, have low processing costs and material characteristics diversification. Nowadays, electrospinning used in Microbial Fuel Cell (MFC) has been tracked in current study. But almost research only modified on proton exchange membrane and electrode plates. Only a few research combined with electro-Fenton-reaction to discuss. In this study, polyvinyl alcohol (PVA) polymer as a composite plate material by adding grapheme film composite plate as a catalyst and Indium Tin Oxide (ITO) as a composite fiber stage. Used in Bio-Electro-Fenton Microbial Fuel Cell (BEFMFC) system cathode plates by adding 0wt%, 2wt%, 4wt%, 6wt% and 8wt% of graphene to composite with PVA and prepare the electrospinning nanofiber. Discuss with the BEFMFC’s power performance and efficiency of Fenton system. Experimented with (1)composited fibers morphology and state by contact angle measurement instrument hydrophilic composite fibers were measured. Fourier transform infrared spectroscopy (FT-IR) to analysis the graphene and PVA electrospun fibers functional group binding state, and then to a scanning electron microscope (SEM) and a transmission electron microscope (TEM) to confirm the status of binding with the case of electrospinning PVA composited fibers with graphene. (2) To analysis the graphene/PVA electrospinning laminated ITO composited electrode’s electrochemical capacity, electrical resistivity and electrical conductivity, use the four-point probe measured the electrical conductivity of graphene/PVA composite electrode. Use electrochemical measuring instrument to measuring Cyclic voltammetry (CV) in different individual electrode electrochemical capacity. (3) Finally, a composite measure of the plate prepared in this study on BEFMFC’s Power performance and efficiency of azo dyes(Reactive Black5, RB5) decolorization by bio-electro-fenton system. The results showed that by measuring the contact angle of the hydrophilic contact angle with increasing graphene additive amount is gradually reduced, at the time 8wt% added amount can be reduced to 10.71 °. Using fourier transform infrared spectroscopy confirmed that graphene can be successfully combined with the PVA and the added amount of graphene characterized its functional group was obvious at 4wt% of graphene. SEM can be observed with the addition of fiber diameter graphene content to enhance and gradually decreased when adding 8wt% fiber diameter can reduced to 103.74nm. Resistivity and the electrical conductivity measured with the 8wt% graphene contents has the best electrical conductance 1.46 × 10-6 (S/m).The CV in electrochemical activity scanning at 4wt% graphene contents have the best electrochemical activity. BEFMFC in a series of energy measurement showed the composite ITO plate graphene addition amount of 4wt% has the best power density 74.1mW/m2 and the open circuit voltage (OCV) of 0.42V.Cyclic voltammetry analysis has the best effect of also 4wt% amount of graphene. The RB5 decolorization at 4wt% graphene additive amount has the highest rate of 60.25%, showing that bio-electro-Fenton reaction efficiency is best at 4wt% amount of graphene/PVA composited electrode. Also, the graphene addition amount of 4wt% with PVA to produce the composited electrode should has the best electrochemical reaction.
Mpholwane, Matome Lieghtone. "The determinants of running performance in middle distance female athletes." Thesis, 2008. http://hdl.handle.net/10539/5426.
Повний текст джерелаChen, Chang-Yu, and 陳昶佑. "Analysis and Implementation of High Performance Multiplier/Accumulator." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/03282703705097659233.
Повний текст джерела林宏光. "High-Performance Reconfigurable Sub-Word Parallel Multiplier-Accumulator Design." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/70513499807532928334.
Повний текст джерела國立交通大學
電子工程系所
94
This thesis presents the design methodology of a high-performance reconfigurable multiplier-accumulator (MAC) capable of supporting sub-word parallelism (SWP) and additional features such as mixed-mode operation and flexible sub-word combination and mode assignment scheme. In order to perform SWP on the proposed scalar MAC, a new SWP partial product array and a novel speed-optimized SWP partial product reduction tree are proposed. With slight delay and some area overhead, the SWP MAC utilizes essentially the same hardware as the proposed scalar MAC. The whole design is dynamically reconfigurable, fully-synthesizable, reusable, and verifiable. The proposed designs and previous relevant works are implemented and compared. Experimental results demonstrate that the proposed SWP MAC design theoretically and practically improves and outperforms previous works in terms of critical path delay, area cost, and power consumption.
Wall, Laura. "Modelling cognitive performance in schizophrenia and across tasks." Thesis, 2020. http://hdl.handle.net/1959.13/1438246.
Повний текст джерелаThis thesis is comprised of two distinct sections with different background, aims and implications, but which share the same methodology – analysis of three cognitive tasks with the Linear Ballistic Accumulator (LBA) model. In the first section, I investigate the across task consistency of LBA parameter estimates to address an untested assumption that the estimates capture general, underlying cognitive processes, which are more than just task specific. I find that there is indeed consistency in the estimates across three similar but distinct tasks and therefore proceed to develop a novel approach which incorporates this shared information, providing more efficient and precise estimation. I fit the LBA to two tasks simultaneously by including a covariance matrix for two tasks into the hierarchical Bayesian estimation procedure. Despite the additional constraint this matrix imposes, the combined model adequately estimates both the individual and group parameters, as well as the estimates of across task covariance. In the second half, I then use this new “combined modelling” approach to investigate cognitive deficits in schizophrenia and find that across the tasks there are some consistent differences between people with and without schizophrenia, such as poorer sensitivity, and some that are task and context specific, such as adjustments of caution. Across both fields of cognitive modelling and cognition in schizophrenia, this new method of combined modelling of multiple tasks is a valuable addition as it allows more precise measurement with fewer data points.