Дисертації з теми "Measurement of energy characteristics"
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Alanezi, Abdulrahman Mubarak Q. "Automated Residential Energy Audits and Savings Measurements Using A Smart WiFi Thermostat Enabled Data Mining Approach." University of Dayton / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1618349179314704.
Повний текст джерелаAouachria, Zéroual. "L'Eolienne Savonius : comportements mécanique et aérodynamique." Aix-Marseille 1, 1987. http://www.theses.fr/1987AIX11062.
Повний текст джерелаSchirtzinger, Mary Beth Bateman. "Maternal depression : measurement and characteristics /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu148768178825174.
Повний текст джерелаHenriksson, David, and Oscar Johansson. "Energy Measurement of Electric Fence." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-80547.
Повний текст джерелаGibbons, Jasper, and David Moss. "LIDAR OUTGOING LASER ENERGY MEASUREMENT SYSTEM." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605772.
Повний текст джерелаA flexible system has been designed to accurately measure and average the outgoing laser energy of a micro-pulse LIDAR unit (MPL). This system incorporates specifically designed analog measurement circuitry interfaced with a microcontroller, allowing researchers to manage experiments from a personal computer. The final system produces a linearly proportional response between an incident laser energy input and the analog and digital circuitry’s output, accurate to within 0.1%. Custom designed algorithms allow the system to average the energy measured in a series of pulses. Each series can range on the order of tens of thousands of pulses.
Read, Craig. "Complexity characteristics and measurement within engineering systems." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8140.
Повний текст джерелаCliffordson, Christina. "Assessing empathy : measurement characteristics and interviewer effects /." Göteborg : Acta Universitatis Gothoburgensis, 2001. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009363239&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Повний текст джерелаDomínguez, Álvarez Noemí. "Device and strategy for surface energy measurement." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/463330.
Повний текст джерелаEn esta Tesis doctoral hemos desarrollado un nuevo método de medida para medir el ángulo de contacto y la energía superficial en muestras hidrofóbicas con un equipo basado en tecnología confocal. Este nuevo método de medida incorpora la corrección del efecto de la rugosidad de la superficie en la medida del ángulo de contacto. El método de medida desarrollado incluye la medida con el equipo confocal de un parámetro que mide el área real que se está midiendo, por lo que incluye la rugosidad y es conocido como Sdr por sus siglas en inglés, y además diversos parámetros de una gota que es depositada sobre la superficie a medir, tal como son la altura y el diámetro aparente de la gota. Por otro lado, el método de medida desarrollado también incluye tres modelos matemáticos que permiten calcular el ángulo de contacto a partir de la combinación de la altura (h) y el diámetro aparente (L) de la gota medidos con el equipo confocal, y también el volumen de la gota dispensada (V) indicado por el dispensador de líquidos. Hemos verificado la validez de cada uno de los modelos matemáticos mediante la evaluación del error introducido por esto parámetros en el cálculo del ángulo de contacto. También hemos realizado un estudio de validación comparando los ángulos de contacto calculados mediante el modelo matemático que únicamente utiliza h y L medidos con el equipo confocal, con los ángulos de contacto medidos por un medidor de ángulos de contacto comercial que se puede encontrar actualmente en el mercado, aplicando el método de ajuste conocido como altura-anchura (height-width). Esto nos permitió verificar el método de medida desarrollado para calcular ángulos de contacto en diferentes muestras hidrofóbicas. Además, hemos corregido el efecto de la rugosidad de la superficie según el modelo de Wenzel en los ángulos de contacto calculados para un subconjunto de muestras hidrofóbicas. Nuestro método utiliza el parámetro Sdr medido con el equipo confocal para calcular el factor de rugosidad requerido para corregir el efecto de la rugosidad de la superficie en el ángulo de contacto calculado. Finalmente, midiendo con agua y diyodometano, hemos podido evaluar la energía superficial total, así como también sus componentes dispersiva y polar de acuerdo con el método de OWRK a partir de los ángulos de contacto corregidos anteriormente, obteniendo como resultado valores de la energía superficial muy preciosos. Por lo tanto, podemos concluir que con el trabajo presentado en esta Tesis doctoral hemos sido capaces de demostrar la validez del método de medida desarrollado para evaluar el ángulo de contacto y la energía superficial en muestras hidrofóbicas con un equipo confocal. La ventaja de esta nueva técnica es que permite tener en cuenta y corregir el efecto de la rugosidad de una superficie en la evaluación de su energía superficial utilizando un único equipo de medida
Marasli, Necmettin. "The measurement of solid-liquid surface energy." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260154.
Повний текст джерелаWestergren, Erik. "Heat Flux Measurement using Infrared Thermography : The development and validation of a novel measurement method." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-143420.
Повний текст джерелаEpstein, Dana Robin. "Measurement of subjective sleep characteristics of adult insomniacs." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276720.
Повний текст джерелаBoyes, Stephen J. "Reverberation chambers and the measurement of antenna characteristics." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/11481/.
Повний текст джерелаHartnell, Jeffrey John. "Measurement of the calorimetric energy scale in MINOS." Thesis, University of Oxford, 2005. http://ora.ox.ac.uk/objects/uuid:9287fd83-e5f8-4341-9158-89ae7a83c269.
Повний текст джерелаAhmad, Naveed. "Measurement of energy performance : Analysis of QUB method." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI051.
Повний текст джерелаQUB is a dynamic in-situ thermal characterization test method that has the potential to be conducted in a short duration of one to two nights. The robustness of QUB method with uncertainty in power level (during QUB heating phase), uncertainty in overall heat transfer coefficient at steady state, H_ref, and the outdoor temperatures a function of seasons needs to be established for real buildings.A dynamic state-space model is developed in this thesis to simulate QUB experiments. The state-space modelling involves generating a thermal circuit for each component of the building (walls, fenestration, ventilation system, etc.). The thermal circuits are then assembled to generate a single circuit for the entire building. The state-space model developed, is validated using thermal characteristics and measured data of a full-scale house (the twin house) provided by IEA EBC Annex 58. The numerical simulations of the QUB experiments on a house show that the method has only slight variation with uncertainty in power; for example, 30% error in optimum power can cause an error within 3 % of the reference value. A posteriori error analysis is performed by simulating QUB experiments in situations in which the real envelope has different characteristics than those assumed in the design of the experiment for QUB method. These results are then compared with a priori errors, a situation in which QUB experiments are performed with the knowledge of the real envelope. The error analysis shows that with 50 % error in the overall heat transfer coefficient (i.e. missing wall insulation situation), the QUB method results in an increased error of only 3¬¬ %. The precision of QUB method was tested also with the variation of solar radiation. QUB results on cloudy days show lesser variation as compared to sunny days. It was shown that the heat transfer from the delayed solar radiations entering through the walls of the building has an effect on the temperature evolution during the QUB experiment. This can lead to an increased error in QUB method. The QUB experiments are simulated during summer and winter to determine the impact of seasons on the accuracy of the method. The winter season shows more robust results as compared to summer months. The summer months show larger variation of results. It is verified that the large variation are due to small temperature difference between indoor and outdoor conditions during some of the summer nights. The experiments in summer season can be improved by increasing the set point temperature before the QUB experiment
Schimann, Hubert C. R. "Force and Energy Measurement of Bubble-Particle Detachment." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9963.
Повний текст джерелаMaster of Science
Mengesha, Wondwosen. "NaI(T1) electron energy resolution." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/15963.
Повний текст джерелаMoats, Anne Rosalie Myers. "LEAP: A balloon-borne search for low energy cosmic ray antiprotons." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184723.
Повний текст джерелаKubota, Madoka. "Energy Harvesting Characteristics of Nonlinear Oscillators under Excitation." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199315.
Повний текст джерелаThomasson, Anton. "Measuring energy consumption characteristics in mobile data communication." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71954.
Повний текст джерелаKirby, Brian. "Measurement of an off-axis neutrino beam energy spectrum." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43208.
Повний текст джерелаMurthy, Kavita. "Energy measurement capabilities of the LEDA cosmic ray detector." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=64058.
Повний текст джерелаBartsch, Detlef. "Energy loss measurement with the ZEUS Central Tracking Detector." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985183535.
Повний текст джерелаSayeed, Kazi Abu. "Measurement of the Branching Fractions for B0s Resonance Energy." Cincinnati, Ohio : University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1218577440.
Повний текст джерелаAdvisors: Alan Schwartz (Committee Chair), Alexander Kagan (Committee Member), Brian Meadows (Committee Member), Michael Sitko (Committee Member), Michael Sokoloff (Committee Member) Title from electronic thesis title page (viewed Oct. 5, 2008). Includes abstract. Keywords: Particle Physics Includes bibliographical references.
Brobeck, Elina Stone Edward McKeown R. D. "Measurement of ultra-high energy cosmic rays with CHICOS /." Diss., Pasadena, Calif. : California Institute of Technology, 2009. http://resolver.caltech.edu/CaltechETD:etd-10192008-143041.
Повний текст джерелаAnilkumar, Ravi. "Energy-Efficient Measurement of Coverage in Distributed Sensor Networks." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9787.
Повний текст джерелаMaster of Science
Natho-Jina, Sultana. "Measurements and analyses of runoff characteristics on subsurface drained farmlands." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65357.
Повний текст джерелаWeingarten, Leopold. "Physical Hybrid Model : Measurement - Experiment - Simulation." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-176412.
Повний текст джерелаPorteous, Colin D. A. "Performance characteristics of solar buffer zones for Scottish housing." Thesis, University of Strathclyde, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240212.
Повний текст джерелаEkwevugbe, Tobore. "Advanced occupancy measurement using sensor fusion." Thesis, De Montfort University, 2013. http://hdl.handle.net/2086/10103.
Повний текст джерелаZhao, Lei. "Bench scale apparatus measurement uncertainty and uncertainty effects on measurement of fire characteristics of material systems." Link to electronic thesis, 2005. http://www.wpi.edu/Pubs/ETD/Available/etd-050105-182456/.
Повний текст джерелаHaarpaintner, Guido. "Electrical characteristics of quantum well solar cells." Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/7609.
Повний текст джерелаHayakawa, N., M. Nagino, H. Kojima, M. Goto, T. Takahashi, K. Yasuda, and H. Okubo. "Dielectric characteristics of HTS cables based on partial discharge measurement." IEEE, 2005. http://hdl.handle.net/2237/6772.
Повний текст джерелаChen, Hong. "Modeling and measurement of frost characteristics on heat exchanger surfaces." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0033/NQ63853.pdf.
Повний текст джерелаDONGMO, GUEFACK ERIC. "Hedge Fund Industry: Performance Measurement, Statistical Properties and Fund Characteristics." Doctoral thesis, Università Cattolica del Sacro Cuore, 2011. http://hdl.handle.net/10280/981.
Повний текст джерелаIn this thesis, I examine the risk-adjusted performance, statistical properties and fund characteristics of hedge fund investments. In Essay One, results of survivorship bias and backfill bias by investment styles indicate that biases are different across styles. Using a multi-factor model of Fung and Hsieh (2004), the analysis of performance indicates that 42% of the hedge funds significantly outperformed the market. Finally, using parametric and non-parametric methods, the analysis of persistence indicates different degree of persistence depending on the hedge fund strategy. In Essay Two, I analyse fund of hedge funds (FOHFs). I find several interesting results. First, FOHFs and the sub-strategies earn positive excess returns and a high Fung and Hsieh 7-factor alpha. Second, FOHFs and the sub-strategies underperform the hedge fund index (HFI). Third, the correlations between FOHF indices and equity index are lower than correlations between HFI and equity indices. Finally, hedge funds and FOHFs are positively correlated with the equity index in the bear markets but uncorrelated with the equity index in the bull markets. Compared to HFI, FOHF indices have lower correlation with equity index in both bull and bear markets, indicating that FOHFs provide better diversification benefits than individual hedge funds.
Tao, Zhengsu. "Characteristics of the transparent fluid assisted in-process measurement method /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?MECH%202003%20TAO.
Повний текст джерелаIncludes bibliographical references (leaves 106-114). Also available in electronic version. Access restricted to campus users.
De, Silva A. A. "Measurement of some radiative properties of solar absorber materials." Thesis, Open University, 1986. http://oro.open.ac.uk/56922/.
Повний текст джерелаSimley, Eric J. "Wind Speed Preview Measurement and Estimation for Feedforward Control of Wind Turbines." Thesis, University of Colorado at Boulder, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3721887.
Повний текст джерелаWind turbines typically rely on feedback controllers to maximize power capture in below-rated conditions and regulate rotor speed during above-rated operation. However, measurements of the approaching wind provided by Light Detection and Ranging (lidar) can be used as part of a preview-based, or feedforward, control system in order to improve rotor speed regulation and reduce structural loads. But the effectiveness of preview-based control depends on how accurately lidar can measure the wind that will interact with the turbine.
In this thesis, lidar measurement error is determined using a statistical frequency-domain wind field model including wind evolution, or the change in turbulent wind speeds between the time they are measured and when they reach the turbine. Parameters of the National Renewable Energy Laboratory (NREL) 5-MW reference turbine model are used to determine measurement error for a hub-mounted circularly-scanning lidar scenario, based on commercially-available technology, designed to estimate rotor effective uniform and shear wind speed components. By combining the wind field model, lidar model, and turbine parameters, the optimal lidar scan radius and preview distance that yield the minimum mean square measurement error, as well as the resulting minimum achievable error, are found for a variety of wind conditions. With optimized scan scenarios, it is found that relatively low measurement error can be achieved, but the attainable measurement error largely depends on the wind conditions. In addition, the impact of the induction zone, the region upstream of the turbine where the approaching wind speeds are reduced, as well as turbine yaw error on measurement quality is analyzed.
In order to minimize the mean square measurement error, an optimal measurement prefilter is employed, which depends on statistics of the correlation between the preview measurements and the wind that interacts with the turbine. However, because the wind speeds encountered by the turbine are unknown, a Kalman filter-based wind speed estimator is developed that relies on turbine sensor outputs. Using simulated lidar measurements in conjunction with wind speed estimator outputs based on aeroelastic simulations of the NREL 5-MW turbine model, it is shown how the optimal prefilter can adapt to varying degrees of measurement quality.
Mong-Chih, Shich, and 謝孟志. "SPT Impulse Energy Measurement and Analysis." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/37261753635185425333.
Повний текст джерелаLai, Bao-Ren, and 賴寶仁. "Simulation and Measurement of Tissues’ Dielectric Characteristics." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/63124632978437434230.
Повний текст джерела國立陽明大學
醫學工程研究所
100
Objective : In this thesis, we want to study the dielectric properties of the human tissues in order to build models to analyze and simulate the dissipation of the electromagnetic wave’s energy which transport from inside to outside of human body. To building this thesis, we want to achieve the purpose of positioning the position of invasive catheter with the system of transmission and received antenna. Methods : The experiment method separates two ways, one uses static magnetic field, another one uses EM wave. The materials of building static magnetic field are Fe2O3 powder and soft magnetic sheet. Before using the EM wave method, we need dielectric data of the different human tissues, and analyze the rest power after transferring tissues according to thesis. We have to measure dielectric properties of the tissues of ligamental flavum and interspinous ligament and supraspinous ligament which are access from porcine vertebral. We control experiment temperature in 37oc, and use network analyzer model N9923A to measure s parameter. At last, we can calculate the dielectric data from s parameter. Results : In the result, the gauss meter could not measure the magnetic field out of the distances of 5 centimeters. Conclusion : According to the result, it is not suitable to positioning the placement of invasive catheter with static magnetic field method. With EM experiment, we obtained the result of tissues’ penetration depth. And the tissues’ penetration depth are fitting the trend of the lower of the frequency, the deeper of the penetration depth.
Chen, Yen-Chun, and 陳彥均. "Identification of StructuralDynamic Characteristics UsingOutput-only Measurement." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/15492017709262097339.
Повний текст джерела國立臺灣大學
土木工程學研究所
94
It is difficult to measure the input for system identification and this is because there are many factors of .environment. So the output-only is becoming important for the future. In this thesis, address several output-only methods and then analysis identification of Structural Dynamic Characteristics Using Output-only Measurement. In order to identify the structure system, address two methods, KL (Karhunen-Loéve ) and SSI (Stochastic Subspace Identification), to identify the mode and then compare two methods. For the modal frequency and damping ratio of the structure, there are four methods, general method 、half-power method 、AR modal method 、two least-squares ARMA modal method, to identify separately and then compile statistics the measured data. In connection with Gi-Lu bridge, we can understand the dynamic characteristic of longitudinal、transverse and vertical directions and consider the couple effect of the deck and cable.
Li, H. Y., and 李慧儀. "Characteristics Measurement of GaN Blue Laser Diode." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/13216320688083290828.
Повний текст джерела國立交通大學
光電工程所
89
In this thesis, we investigated the commercially available GaN blue lasers including the emission characteristics and the frequency stability of the lasers. We used two types of GaN lasers. One is 5 mW (NLHV 500A), and the other is 30 mW (NLHV 3000E). Threshold current and center wavelength of low-power type are 48 mA and 407 nm. Those of high-power type are 39 mA and 400 nm. The temperature dependence of L-I curve showed a characteristic temperature T0 is 213.8 K and 141.4 K for low power and high power laser respectively. From current versus the output power, we get quantum efficiency of around 38 % for low power device and 31 % for high power device. The wavelength shift of current and temperature variation are 0.00267 nm/mA which corresponding to 5 GHz/mA, and 0.016 nm/oC = 30 GHz/oC. The transverse mode is TEM00 and the linewidth measured by a scanning Fabry-Perot interferometer is about 5 MHz. These data indicate the GaN laser is relatively insensitive to thermal effect. Besides these, we setup an external cavity using the low power laser, and obtained a tuning range about 2 nm. We also used an optical feedback system to stabilize the high power laser and measured stability about 1E-9 for a 1000 sec period, which is two orders better than the free-running laser.
Lu, Pei-che, and 呂沛哲. "Vision measurement of characteristics of cabbage seedlings." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/28436282884570329232.
Повний текст джерела國立臺灣大學
農業機械工程學系研究所
87
Automatic image-processing algorithms were developed to identify features and properties of cabbage seedlings. An automatic image acquiring system, which consists of illuminating chamber, was developed by computer communication, automatic control and machine vision. Top and side images of cabbage seedlings were grabbed after the process of the color calibration. Image-processing algorithms were modified as follows:determining the threshold values by the method of minimum error thresholding to reduce errors of stem diameter and hypocosyle length measured image-processing (the average error of stem diameter was reduced to 4.72% and the average error of hypocosyle length was reduced to 8.08%). Measuring the characteristics of cabbage leaves by drawing the shape of image. Using ellipse shape to reduce the errors due to the cabbage leaf separation and more accurate values were obtained, such as the error of leaf-length reduced to 4.01%, the error of leaf-width reduced to 3.37% and the error of leaf-area reduced to 9.99%. It was found that characteristics of cabbage seedlings would be affected by the seasons, such as stalk height, stem diameter, leaf fresh weight and dry weight without roots. Using multiple linear regression (MLR) and back-propagation network to analyze the linear and non-linear relationships between the characteristics (including manual-measurement and image-calculation) and the quality indices of cabbage seedlings (including the expert’s scores of seedlings and dry weight without roots). Correlation coefficient (r) of the best MLR model to predict the expert’s scores was 0.89 and RMSE (Root mean square error) was 0.18. The best neural network model to predict the expert’s scores was developed with r of 0.92 and SEC (Standard error of calibration) of 0.15. Stem diameter, fresh weight without roots, average leaf-width and average leaf-area were the most important characteristics of manual measurement related to the experts’ grade scores of seedlings. The best MLR model to predict dry weight (without root) was 0.9 in r and was 0.023 in RMSE. While the best neural network model to predict dry weight (without root) was 0.93 in r and was 0.012 in SEC. Dry weight of root, fresh weight without root, leaf fresh weight and average leaf-width were the most important characteristics of manual measurement related to dry weight without roots. The correlation coefficient of the best MLR model to predict the expert’s scores was 0.75 and RMSE was 0.26. The best neural network to predict the expert’s scores with the consideration of season was 0.83 in r and was 0.2 in SEC. Projective area of top image, span, seedling length and projective area of side image were the most important characteristics of image calculation related to the expert’s grades scores of seedlings. The best MLR model to predict dry weight without root was 0.62 in r and was 0.045 in RMSE. The best neural network to predict dry weight without root was 0.77 in r and was 0.018 in SEC. Projective area of side image and top image, average leaf-area and seedling length were the most important characteristics of image calculation to dry weight without roots. Accuracy of the best neural network was 98.6% when the grades were used as the output.
鐘新强. "Optical Characteristics Measurement of Optometry Trial Lenses." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/h9hprh.
Повний текст джерелаYung-YungChen and 陳雍雍. "Energy consumption characteristics of hospital buildings." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/10548782596079888557.
Повний текст джерела國立成功大學
建築學系碩博士班
100
In recent years, the ideological trend of energy conservation and carbon reduction has driven the development of building energy assessment. More and more countries around the world and also Taiwan are attempting to control the energy consumption of construction industry based on this reason. From the policy of building energy conservation it was found that it only utilizes single type of energy consumption standard regulation regarding to the buildings so it could not reflect the difference of the proportion of their internal space composition and Energy Usage Intensity (EUI). This kind of building energy assessment will cause some mistakes and unfairness during assessment confront with hospital buildings which contain complicate composition of the internal spaces and also huge difference in energy usage of each space. Regarding to this situation, this study focused on five hospital buildings of each rating in central part of Taiwan, investigating lighting and equipment energy consumption data from ten types of main space in the building, also coordinate with computer software, eQUEST to simulate the energy consumption of AC in each space for analyzing usage. In our final studies we found that the energy consumption of hospital is not directly related to the rating, but related to the proportion about the composition of internal space in hospital. Our study has generalized the features of energy consumption for internal spaces in hospital and also proposed suggestions for the hospital building to implement five types of energy consumed partition during energy assessment. 1. 12hours low energy consumed area: outpatient department 2. 12hours high energy consumed area: Physiotherapy, Pharmacy, department of Radiology, Hemodialysis center and Health screening centre 3. 24hours low energy consumed area: general ward area 4. 24hours high energy consumed area: emergency ward area and Intensive Care Unit (ICU) 5. 24hours operating room area: operating room Total EUI of 12hours and 24hours low energy consumed area falls in the range of 250~260 kWh/ (m2‧yr) while total EUI of 24hours operating room area is around 700 kWh/(m2‧yr) which is the most energy consumed area in the hospital building.
Yan, Ching-Huei, and 顏清輝. "Penetration Resistance and Energy Measurement of SPT." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/91817288437999564016.
Повний текст джерела國立高雄應用科技大學
土木工程與防災科技研究所
94
Standard Penetration Test(SPT) has been extensively used in civil engineering. Due to wrong operation performed and inexact equipment, the judgment of formation of soil layers lead to error or imperfections by using SPT N-value. Therefore, it generally needs to many different ways to modify so that N value can be used in geotechnical applications. The purpose of this study is to estimate the energy loss using energy measurement system for SPT and for providing SPT N- value correction for reference. The research methods are focused on design and setup the load cell and the accelerometer on the energy measurement rod. In addition, the industrial panel computer (IPC) and high-speed analogy-to-digital converter (ADC) card are used to acquisite and record the test data. Moreover, the Mass-Spring-Slider (MSS) model is proposed to estimate the relationship among the displacement, velocity, and acceleration of drill rod. The result showed that the joint of drill rod influenced the shape of first pressure wave and measurement energy of manual hammer was little higher than that of automatic hammer. In other words, the N-value will be underestimated. Besides, the MSS model should be needed to limit the deformation by Slider element otherwise the displacement of model should continue to increase with force. In addition, the maximum energy occurred most frequently on, or near, the first pressure wave in load cell response.
Tang, Shiang-Guo, and 唐相國. "Analysis and Measurement of MIMO Radio Channel Characteristics." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/65180842173153463384.
Повний текст джерела國立臺灣大學
電信工程學研究所
90
This thesis introduces a new structure for improving the transmitted data capacity in fixed bandwidth — the multiple-input multiple-output (MIMO) communication system, which is composed of two antenna arrays at both ends of the transmission link. The MIMO communication system exploits the low correlation among radio channels that is caused by rich multipath environment and transmits several kinds of data simultaneously with less interference. For further investigation of MIMO channel features, first we constructed a measurement platform for detecting the characteristics of MIMO channels. By the eigenanalysis and waterfilling capacity distribution method, the statistical feature of MIMO channels can be obtained. We found that the number of significant (available) 4x4 MIMO channel gain in indoor is larger than that in picocell case because the effect of multipath; the total capacity with 10% outage is around 25~30bits/s/Hz in indoor compared with 15~20bits/s/Hz in picocell scenario. In microcell scenario, for larger spatial coverage the RUSK channel sounder was exploited for measurement. Although the error that resulted from the difference of SIMO and MIMO system existed, the phenomenon that capacity when LOS exists is smaller than that in NLOS case can still be observed.
Liou, Jia-Hua, and 劉家樺. "Polarization characteristics of 1D plasmonic grating measurement anddiscussion." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/56851152808060453406.
Повний текст джерела國立中山大學
光電工程學系研究所
99
The birefringence of one-dimension PMMA surface gratings on a gold film substrate is investigated. The grating served as a coupler to facilitate the incoming light coupled to surface plasmon wave (SPW) which possesses high propagation wave vector. Since surface plasmon waves(SPWs) have a special dispersion relation, the birefringence Δneff (Δneff =nx-ny, where grating k-vector is along x axis) of this structure is relatively large and can be changed from positive to negative by changing the operation wavelength. The obtained the four Stokes parameters at 515nm and 633nm are marked on the Poincare sphere. Δneff is 2π/7 and -π/8 at 515nm and 633nm respectively. Further, by changing the form factor of PMMA gratings, we found that the maximum Δneff occurred when PMMA stripe width : air gap=1:1.
Liu, Yao-Yi, and 劉曜毅. "Fabrication of GaN MESFET and measurement of characteristics." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/53573373206528669492.
Повний текст джерела國立清華大學
電子工程研究所
90
We investigate the reliability of GaN metal semiconductor field effect transistor. The high quality GaN was grown by metal organic chemical vapor deposition (MOCVD). We used Ni/Au as a schottky gate and Ti/Al/Ti/Au as a drain source of GaN MESFET. It was found that the performance of GaN MESFET was not changed after heated at 300℃ for 120m. No degradation of ohmic contact and schottky contact was occurred. The better reliability of GaN MESFET was demonstrated.
Liang, Zhi-Zhan, and 梁智展. "Frequency Selective Surfaces Design, Measurement and Characteristics Analysis." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/11552966216879655787.
Повний текст джерела國立臺灣海洋大學
電機工程學系
95
Because of the filtering property suggested, frequency selective surfaces (FSS) have attracted a lot of researches, and have been applied to military and industry applications. In this paper, the patterns of the FSS designed in the literatures and the effect of their parameters are analyzed by the commercial simulation software package HFSS. In order to verify the simulation results, the method of print-out is used to manufacture the FSS prototype. It saves a lot of time and reduces the cost of production. The methods of practical analysis and verification for both simulation and measurement setup also have been proposed in the paper. In the analysis of the FSS, the parameters to be simulated include the size, polarization and angle of incident wave, thickness and permittivity of the dielectric layers. Different shapes of the element patterns (slot or patch) are also analyzed, such as ring (slot), Jerusalem cross (slot), Jerusalem cross (patch), tripole (slot), cross (slot), etc. Base on these analyses, the process of designing narrow-band bandpass filtering has been proposed. In order to verify our simulation results, the method of printed-out is used. By comparing the measurement and simulation results, the source of the error can be obtained. We perform a lots of sensitivity analyses of the FSS affected by both the conductivity of conductor and permittivity of dielectric. For our experiments, it is obviously that the conductivity of the conductor will not affect the resonant frequency when it is greater than a certain range. After that, resonant frequency will decrease as conductivity decreased. Also we can see that the permittivity of the dielectric layer’s impacts on resonant frequency will varied according to different shapes. Resonant frequency will not be necessary decreased as the permittivity increased. However, the resonant frequency will be irregularity in a small range within certain intervals. For the bandpass filtering applications, the shape of Jerusalem cross is a better choice from our experiment results, because it has smaller error and performs more consistent results on both resonant frequency and bandwidth, along with good transmittance behavior. Several key points on both manufacturing and measuring process and the future work are also summarized in this paper.
Chien-Lung, Chen, and 陳建隆. "The Study of Standard Penetration Test Energy Measurement." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/54815033335687794974.
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