Relevant bibliographies by topics / Measurement of energy characteristics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Measurement of energy characteristics'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Measurement of energy characteristics"

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Raitsin, A. M., and M. V. Ulanovskii. "Correct measurement methodology spatial-energy characteristics of laser beams." Metrologiya, no. 2 (July 4, 2021): 4–19. http://dx.doi.org/10.32446/0132-4713.2021-2-4-19.

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A methodology for correct measurements of the spatial and energy characteristics of a laser beam is considered, based on the determination of the initial moments of the spatial intensity distribution in the beam cross section. The classification of radiation fields participating in the measuring process is given: emitted, measured and measured. It is shown that ISO 11146:2005 “Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios, Part 1-3” for measuring the spatial and energy characteristics of laser beams leads to incorrect measurements. This is due to the fact that the recommendations for the application of ISO 11146:2005 do not take into account the dynamic range of the used matrix radiation detectors, and the characteristics of the emitted field of interest to the user turn out to be diverging, which violates the uniformity of measurements. Moreover, the conditions ensuring the convergence of the results are practically impracticable. To solve these problems, it is proposed to establish and regulate the lower level of the dynamic range of measurements of the intensity of the used matrix receivers and to consider the spatial and energy characteristics of the emitted field of interest to the user, depending on the set value of the lower level. It is shown that measurements with this methodology become correct and make it possible to compare the characteristics of laser beams obtained by different array detectors. Formulas are given that take into account the effect of the lower level of the dynamic range of the matrix radiation detectors on the measurement result. These formulas should be recommended for inclusion in the updated edition of the national standard GOST R ISO 11146-2008 “Lasers and laser installations (systems). Methods for measuring widths, divergence angles and propagation coefficients of laser beams. Parts 1-3”.
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Beck, B. T., and G. L. Wedekind. "Characteristics of a Simple Energy Absorption Transducer." Journal of Heat Transfer 108, no. 3 (August 1, 1986): 676–83. http://dx.doi.org/10.1115/1.3246989.

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This paper presents the results of an investigation into a simple technique developed primarily for evaluating surface coating effectiveness for the absorption of a nonuniform laser radiation heat flux. Analysis suggests that if the transducer sensor is designed appropriately, and the experimental data analyzed in a particular manner, the temperature–time history of the transducer need be measured at only a single arbitrary location. These conclusions are also supported by experimental measurements of laser radiation absorption at a wavelength of 10.6 μm for polished copper, polished steel, and for a manganese–phosphate coating on a steel substrate. The absorptivities measured for the polished copper and steel agree well with other experimental data in the literature. Limitations of the measurement technique, resulting from the temperature dependence of the transducer material properties, radiation absorptivity, and combined convective and radiative heat flux, are also investigated theoretically and experimentally.
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TANIYAMA, Tetsuya, Yasuhiro SHIRAKURA, Kaoru SUZUKI, and Takaya MASUTANI. "Characteristics of Piezoelectric Crystal Element on Laser Energy Measurement." Review of Laser Engineering 14, no. 2 (1986): 146–50. http://dx.doi.org/10.2184/lsj.14.146.

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Levashenko, G. I., A. S. Sokol'nikov, I. N. Dobrokhotov, and N. V. Mazaev. "Measurement of energy characteristics of an impulsive thermal radiator." Combustion, Explosion, and Shock Waves 29, no. 1 (1993): 43–46. http://dx.doi.org/10.1007/bf00755327.

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Tur, Josep A., and Maria del Mar Bibiloni. "Anthropometry, Body Composition and Resting Energy Expenditure in Human." Nutrients 11, no. 8 (August 14, 2019): 1891. http://dx.doi.org/10.3390/nu11081891.

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Anthropometry (from the Greek anthropos: human, and metron: measure) refers to the systematic collection and correlation of measurements of human individuals, including the systematic measurement of the physical characteristics of the human body, primarily body weight, body size, and shape [...]
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KUDO, Kazuhiko, Hiroshi TANIGUCHI, Yong-mo KIM, and Masayuki MIZUNO. "Measurement of Characteristics of Radiative Energy Transmittance Through Packed Spheres." Transactions of the Japan Society of Mechanical Engineers Series B 57, no. 537 (1991): 1867–73. http://dx.doi.org/10.1299/kikaib.57.1867.

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Sun, Zhen Bao. "Measurement and Numerical Study of Characteristics of an Energy Unit." Applied Mechanics and Materials 568-570 (June 2014): 1774–77. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.1774.

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The mathematical model based on temperature formulation for describing freezing course of soil is presented and the explicit finite difference method is used to perform computer simulation of freezing time of soil in this paper. It seems to be satisfactory by comparing the numerical results by the method of TDMA with experimental data. It is significant for freezing process and freezing units, optimum design of practical engineering.
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Ananto, Rhezal Agung, and Asfari Hariz Santoso. "Analisis Performance Jangka Pendek Pembangkit Listrik Tenaga Surya dengan Sistem Stand-alone System." ELPOSYS: Jurnal Sistem Kelistrikan 8, no. 1 (February 27, 2021): 22–27. http://dx.doi.org/10.33795/elposys.v8i1.30.

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Renewable energy power generation technology continues to develop every year and energy demand continues to increase. Reducing carbon emissions in accordance with international carbon emission policies (including Indonesia). The renewable energy target is targeted to increase every year in accordance with the national renewable energy mix policy. Renewable energy has characteristics that fluctuate over time, so continuous measurement data is needed. This data is used for the design of renewable energy in Indonesia in the future. To analyze the performance of a solar power plant, measurement variables are needed. Photovoltaic analysis requires measurement of variable voltage, current, power and energy. Measurement variables are measurement variables from photovoltaic and measurement variables from solar energy. The measurement of solar energy is measured in Watts per square meter. The measurement method is a direct measurement in the territory of Indonesia. The measurement method is the measurement at sunrise to sunset. The measurement results are used for performance analysis. The measurements result are used for photovoltaic efficiency analysis.
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Sieverding, Claus H., Davide Ottolia, Carlo Bagnera, Andrea Comadoro, J. F. Brouckaert, and Jean-Michel Desse. "Unsteady Turbine Blade Wake Characteristics." Journal of Turbomachinery 126, no. 4 (October 1, 2004): 551–59. http://dx.doi.org/10.1115/1.1737783.

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The paper presents an experimental investigation of large coherent structures, commonly referred to as “von Karman vortex street,” in the wake of a turbine blade at high subsonic Mach number M2,is=0.79 and high Reynolds number (RE=2.8×106 and their effect on the steady and unsteady pressure and temperature distribution in the wake. Ultra short smoke visualizations and two interferometric measurement techniques, holographic interferometry and white light differential interferometry provide insight into the vortex formation and shedding process. In addition, the interferometric measurement provides quantitative information on the stream wise evolution of the minimum density associated with the vortices and on their lateral spreading. Wake traverses are performed with a four-head fork probe carrying a Kiel probe and a fast response Kulite pressure probe for pressure measurements and a thermocouple probe and a cold wire resistance probe for temperature measurements. The results confirm the observation of energy separation in the wake as found by other researchers. The experimental data are a unique source for the validation of unsteady Navier-Stokes codes.
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Challinger, Susanna E., Iain D. Baikie, and A. Glen Birdwell. "Diamond Energy Levels and Photoemission Characteristics from 300 – 425 K." MRS Advances 3, no. 33 (2018): 1937–42. http://dx.doi.org/10.1557/adv.2018.27.

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ABSTRACTThe unique electronic structure of diamond and its excellent thermal properties allow a broad range of possible applications; from electron sources to RF electronics. However, knowledge of the surface energy levels is essential to produce efficient, high-quality devices. We investigate the valence band position and resulting negative electron affinity for hydrogen terminated diamond under ambient, low vacuum and ultra-high vacuum (UHV) conditions. There was a -0.5 eV change in valence band position causing a negative electron affinity shift from -1.1 eV under UHV to -0.6 eV in ambient pressure. We compare the photoemission current under each environment to predict the ability of the sample to be used as an electron source. The maximum emission was observed when the sample displayed the largest negative affinity. A scanning photoemission measurement is demonstrated to highlight the superior photoemission yield from the hydrogen terminated diamond surface compared to the stainless steel contact. A scanning Kelvin probe measurement is shown to illustrate a method of analyzing the contact potential difference across the diamond surface. Within high-power RF electronics, devices are likely to be operating at increased temperatures so knowledge of the impact of temperature on the energy levels is important. We study the valence band and Fermi level positions for hydrogen terminated diamond from room temperature (300K) to 425K under low and UHV conditions. The Fermi level moved below the valence band edge at increased temperature, illustrating the effect of the 2D hole gas at the surface. We also analyzed the photoemission characteristics and found an increase in yield with increasing temperature. The measurement techniques used to evaluate the energy levels of diamond: photoemission spectroscopy and Kelvin probe measurements, in ambient and vacuum, allow analysis to be completed in minutes. This offers an initial analysis alternative to elucidate more information and predict performance prior to the more time-consuming full device manufacture and characterization.
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Dissertations / Theses on the topic "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.

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Aouachria, Zéroual. "L'Eolienne Savonius : comportements mécanique et aérodynamique." Aix-Marseille 1, 1987. http://www.theses.fr/1987AIX11062.

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Methode experimentale de mesure des pressions parietales d'un rotor, a axe vertical, de type savonius en rotation. Les resultats obtenus ont ete utilises dans un modele de calcul afin de determiner les parametres mecaniques c::(m)et c::(p) de la machine. Determination des coefficients de trainee et de portance ainsi que du comportement vibratoire du rotor sous l'effet des forces aerodynamiques. Correlation du champ des pressions d'aube avec le systeme des emissions tourbillonnaires engendrees par l'eolienne en rotation. Etude de dispositifs de suspension de type "pilotis" destines a isoler, en vibration, un rotor savonius tripale
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Schirtzinger, Mary Beth Bateman. "Maternal depression : measurement and characteristics /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu148768178825174.

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Henriksson, 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.

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Syftet med denna rapport är att få en inblick hur elstängselaggregat fungerar och hur energimängden, från en stöt, noterar. Det har då tagits fram en förstudie om vilka elstängselaggregat och vilka mätinstrument som ska användas. Mätningar har gjorts både i laborationsmiljö och ute i jordbruksmiljö. En enklare funktion och uppbyggnad har undersökts och kontrollerats för att visa strömmar och spänningar från varje elstängselaggregat. Energimängden kan sedan räknas ut. Dessutom tar rapporten upp problem i jordbruksmiljö och i instrumenten.
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Gibbons, Jasper, and David Moss. "LIDAR OUTGOING LASER ENERGY MEASUREMENT SYSTEM." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605772.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California
A 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.
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Read, Craig. "Complexity characteristics and measurement within engineering systems." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8140.

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Complexity is a significant factor in the development of new products and systems; generally speaking, the higher the complexity, the more difficult products and systems are going to be to design and develop. There are a number of different factors that influence complexity within systems, namely: interoperability; upgradability; adaptability; evolving requirements; system size; automation requirements; performance requirements; support requirements; sustainability; reliability; the need for increased product lifespan; and finally, the length of time systems take to develop. There is, at present, no common language to describe complexity within engineered systems; this language needs to be developed in order to help industry cope with increasing product complexity and thus meet customer demands. This thesis represents a start in the development of that language, and thus an understanding of systems complexity. The thesis offers a framework for complexity analysis within systems, one which identifies some of the key complexity characteristics that need to be taken into consideration, and which embraces complexity problems, definitions, concepts and classifications, origins and coping mechanisms. It has also has been developed in terms of a measurement approach, thereby allowing for a meaningful comparison between products, and an understanding of the complexities within them. This framework was developed using information collected from academic literature and from more specific case studies. Each complexity characteristic was investigated, and the interactions between characteristics were identified; these interactions allow us to understand complexity and help to develop a common language. The thesis develops a measurement technique that quantifies various complexity characteristics in terms of the framework laid down, thus enabling a quantified understanding of complexity within systems. This new measurement approach was tested on a set of recent case studies, and the complexity characteristics produced by the measurement technique were, in turn, tested against attributes of the system. The framework itself is always evolving - it incorporates new complexity characteristics. Nevertheless, such evolution can only further our understanding of complexity. Further work, to explore and integrate the approach demonstrated in this thesis into an automated tool, and test its robustness, along with a continual development of other elements of the framework, such as a classification of complexity, is recommended.
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Cliffordson, 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.

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Domínguez, Álvarez Noemí. "Device and strategy for surface energy measurement." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/463330.

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In this Ph.D. Thesis, we have developed a new measurement method to measure the contact angle and the surface energy in hydrophobic samples with a device based on confocal technology. This new measurement method incorporates the correction of the effect of the roughness of the surface in the contact angle measurement. The developed measurement method includes the measurement with the confocal device of the Developed Interfacial Area Ratio (Sdr) of the surface under study as well as several parameters of a liquid drop placed on the surface, such as the height and the apparent diameter of the drop. On the other hand, the developed measurement method also includes three mathematical models to calculate the contact angle from a combination of the height (h) and the apparent diameter (L) of the drop measured by the confocal device, and the volume of the dispensed drop (V) indicated by the liquid dispenser. We have verified the validity of each mathematical model by evaluating the introduced error in the calculation of the contact angle. A validation study has also been performed by comparing the calculated contact angles by means of the developed mathematical model that uses exclusively the height and the apparent width of the drop measured with the confocal device with the contact angles measured by a current commercial contact angle meter applying the height-width fitting method. This allowed us to verify the developed measurement method to calculate contact angles on different hydrophobic samples. Furthermore, we have corrected the effect of the surface roughness of a subset of hydrophobic samples on the calculated contact angles according to Wenzel’s model. Our method uses the Sdr parameter measured with the confocal device to calculate the roughness ratio factor required to correct the calculated contact angle with the effect of the roughness. Finally, by doing the measurement with water and diiodomethane, we have evaluated the total surface energy as well as its dispersive and polar components according to OWRK’s method from the previously corrected contact angles, obtaining accurate surface energy values. Therefore, we can conclude that the work reported in this Ph.D. Thesis has been able to demonstrate the validity of the developed measurement methodology for evaluating the contact angle and the surface energy on hydrophobic samples with a confocal device. The advantage of this new technique is that it allows to take into account and correct the effect of the roughness in the evaluation of the surface energy, using a single device.
En 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
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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.

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Westergren, 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.

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Books on the topic "Measurement of energy characteristics"

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Singh, Jag J. Low-energy gamma ray attenuation characteristics of aviation fuels. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990.

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Singh, Jag J. Low-energy gamma ray attenuation characteristics of aviation fuels. Hampton, Va: Langley Research Center, 1990.

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Singh, Jag J. Low-energy gamma ray attenuation characteristics of aviation fuels. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990.

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Casada, D. A. Hand-held power monitoring devices: User consideration and a comparison of performance characteristics. Oak Ridge, TN: Oak Ridge National Laboratory, 1996.

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Porter, Ray. Energy measurement and control. Wootton: R. Porter, 1997.

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U.S. Dept. of Defense. Measurement of electromagnetic interference characteristics. Ascot: ILI, 1995.

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Jhang, Kyung-Young, Cliff J. Lissenden, Igor Solodov, Yoshikazu Ohara, and Vitalyi Gusev, eds. Measurement of Nonlinear Ultrasonic Characteristics. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1461-6.

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Rufo, Mike. California's secret energy surplus: The potential for energy efficiency. Oakland, CA: The Energy Foundation and The Hewlett Foundation, 2002.

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Misak, Stanislav, and Lukas Prokop. Operation Characteristics of Renewable Energy Sources. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-43412-4.

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Westphalen, Detlef. Energy consumption characteristics of commercial building HVAC systems: Energy savings potential. Cambridge, MA: TIAX LLC., 2002.

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Book chapters on the topic "Measurement of energy characteristics"

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Wei, Yanju. "Measurement, Mechanism and Characteristics of Formaldehyde Emission from Methanol/Gasoline Blends Fueled Engine." In Energy, Environment, and Sustainability, 243–63. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1224-4_10.

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Kern, R., and H. G. Wagemann. "Uncomplicated Measurement Procedure for I-V-Characteristics of Photovoltaic Generators At Remote Sites." In Seventh E.C. Photovoltaic Solar Energy Conference, 314–18. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3817-5_58.

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Wang, Shuo, Kuang Li, Shiwei Xu, Shaobo Ma, Han Chen, Xiaodong Tang, Jun Su, and Yangping Shen. "On the Measurements of the Beam Characteristics of Low-Energy Accelerator." In Springer Proceedings in Physics, 465–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13876-9_91.

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John, Walter. "Size Distribution Characteristics of Aerosols." In Aerosol Measurement, 41–54. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118001684.ch4.

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Busch, Paul, Pekka Lahti, Juha-Pekka Pellonpää, and Kari Ylinen. "Time and Energy." In Quantum Measurement, 389–403. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43389-9_17.

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Mitchell, John. "Measurement of gel characteristics." In Special Publications, 336–45. Cambridge: Royal Society of Chemistry, 2009. http://dx.doi.org/10.1039/9781847551214-00336.

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Priest, Stephen D. "Measurement of discontinuity characteristics." In Discontinuity Analysis for Rock Engineering, 24–62. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1498-1_2.

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Santjer, Fritz. "Measurement of Electrical Characteristics." In Wind Power in Power Systems, 175–93. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781119941842.ch9.

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Fernandez-Anez, Nieves, Blanca Castells Somoza, Isabel Amez Arenillas, and Javier Garcia-Torrent. "Composition and Characteristics." In SpringerBriefs in Energy, 45–57. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43933-0_5.

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Platzer, Max F., and Nesrin Sarigul-Klijn. "Hydrogen Characteristics." In The Green Energy Ship Concept, 57–58. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58244-9_15.

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Conference papers on the topic "Measurement of energy characteristics"

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Chen, Xin, Fei Wei, Chao Liu, Xue Liu, Delong Dong, and Zhaojie Zhang. "Research on Business Characteristic Data Generation Method Based on Comprehensive Energy Measurement Characteristics." In ICITEE2020: The 3rd International Conference on Information Technologies and Electrical Engineering. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3452940.3452981.

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Yashutina, O. S., Yu K. Atroshenko, and T. S. Boykova. "Experimental research of temperature measurement process characteristics using thermocouples." In THERMOPHYSICAL BASIS OF ENERGY TECHNOLOGIES (TBET 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001211.

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Brinovar, Iztok, Gregor Srpcic, Miralem Hadziselimovic, Viktor Gorican, and Bojan Stumberger. "Measurement systems for determining the characteristics of electrical machines." In 2017 International Conference on Modern Electrical and Energy Systems (MEES). IEEE, 2017. http://dx.doi.org/10.1109/mees.2017.8248943.

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Cipin, Radoslav, Miroslav Patocka, and Jiri Vondrus. "Acceleration method of the IM torque-speed characteristics measurement." In 2011 International Conference on Power Engineering, Energy and Electrical Drives (POWERENG). IEEE, 2011. http://dx.doi.org/10.1109/powereng.2011.6036531.

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Jallod, Uday E., and Kamal M. Abood. "Characteristics measurement of Baghdad University radio telescope for hydrogen emission line." In TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5138521.

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Jin, Zongshuai, and Hengxu Zhang. "Noise characteristics and fast filtering of synchronized frequency measurement in low voltage grid." In 2016 IEEE Smart Energy Grid Engineering (SEGE). IEEE, 2016. http://dx.doi.org/10.1109/sege.2016.7589559.

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Chong, Liu, Cai Maolin, Wang Jia, and Guan Li. "Research on the energy loss characteristics and improving measurement of heat pump." In 2011 International Conference on Fluid Power and Mechatronics (FPM). IEEE, 2011. http://dx.doi.org/10.1109/fpm.2011.6045795.

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Lester, C., J. Browning, and L. Matthews. "Simulation and measurement of vacuum electron hop funnel IV characteristics and energy distribution." In 2010 IEEE 37th International Conference on Plasma Sciences (ICOPS). IEEE, 2010. http://dx.doi.org/10.1109/plasma.2010.5534350.

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Xinyi, Wang, Liu Yiying, Yu Penghao, Li Weikang, and Wang Hao. "Study on aging characteristics of MOV in energy absorption branch of hybrid DC circuit breaker." In 2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI). IEEE, 2019. http://dx.doi.org/10.1109/icemi46757.2019.9101485.

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Egan, Vanessa M., Patrick A. Walsh, and Edmond J. Walsh. "Flow Characteristics of Aluminium Oxide Nanofluids." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88450.

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The current study is an investigation in the flow characteristics of aluminium oxide nanofluids. Relative viscosity measurements are obtained for varying volume fractions using both a rotational viscometer and an experimental setup designed for pressure drop measurements in tubes. The effect of nanoparticle size and preparation method is also investigated as predispersed nanofluids of nominal particle size 10nm and 50nm are compared with each other and with a fluid mixed from Al2O3 nanopowder. Volume fractions of between 1% and 7% were tested. The first method employed to obtain viscosities is based on the Hagen-Poiseuille equation for laminar pipe flow, where pressure drop measurement and flow rate measurements are used to determine relative viscosities of various nanofluids samples. Viscosity measurements were also obtained for a number of solutions on a rotational viscometer and compared to the latter and existing models available in the literature. Overall, it was found during experimentation that the relationship between pressure and flow rate for the various nanofluids was linear indicating that the fluids were Newtonian in nature. An increase in viscosity was recorded for increasing volume fraction; however this was seen to be negligible for volume fractions lower than 1%. Overall it was also seen that both methods of determining relative viscosity were in good agreement. There was not a clear indication of the effect of nanoparticle size on the relative viscosity however the nanofluids formulated from purchased Al2O3 powder resulted in a considerably lower relative viscosity when compared to both nanofluids purchased pre-dispersed from suppliers.
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Reports on the topic "Measurement of energy characteristics"

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Mulvehill, J. M., and L. W. Brackenbush. Characteristics of beta detection and dose measurement at Department of Energy facilities. Office of Scientific and Technical Information (OSTI), February 1987. http://dx.doi.org/10.2172/7063032.

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Tanny, Josef, Gabriel Katul, Shabtai Cohen, and Meir Teitel. Application of Turbulent Transport Techniques for Quantifying Whole Canopy Evapotranspiration in Large Agricultural Structures: Measurement and Theory. United States Department of Agriculture, January 2011. http://dx.doi.org/10.32747/2011.7592121.bard.

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Original objectives and revisions The original objectives of this research, as stated in the approved proposal were: 1. To establish guidelines for the use of turbulent transport techniques as accurate and reliable tool for continuous measurements of whole canopy ET and other scalar fluxes (e.g. heat and CO2) in large agricultural structures. 2. To conduct a detailed experimental study of flow patterns and turbulence characteristics in agricultural structures. 3. To derive theoretical models of air flow and scalar fluxes in agricultural structures that can guide the interpretation of TT measurements for a wide range of conditions. All the objectives have been successfully addressed within the project. The only modification was that the study focused on screenhouses only, while it was originally planned to study large greenhouses as well. This was decided due to the large amount of field and theoretical work required to meet the objectives within screenhouses. Background In agricultural structures such as screenhouses and greenhouses, evapotranspiration (ET) is currently measured using lysimeters or sap flow gauges. These measurements provide ET estimates at the single-plant scale that must then be extrapolated, often statistically or empirically, to the whole canopy for irrigation scheduling purposes. On the other hand, turbulent transport techniques, like the eddy covariance, have become the standard for measuring whole canopy evapotranspiration in the open, but their applicability to agricultural structures has not yet been established. The subject of this project is the application of turbulent transport techniques to estimate ET for irrigation scheduling within large agricultural structures. Major conclusions and achievements The major conclusions of this project are: (i) the eddy covariance technique is suitable for reliable measurements of scalar fluxes (e.g., evapotranspiration, sensible heat, CO2) in most types of large screenhouses under all climatic conditions tested. All studies resulted with fair energy balance closures; (ii) comparison between measurements and theory show that the model is capable in reliably predicting the turbulent flow characteristics and surface fluxes within screenhouses; (iii) flow characteristics within the screenhouse, like flux-variance similarity and turbulence intensity were valid for the application of the eddy covariance technique in screenhouses of relatively dilute screens used for moderate shading and wind breaking. In more dense screens, usually used for insect exclusions, development of turbulent conditions was marginal; (iv) installation of the sensors requires that the system’s footprint will be within the limits of the screenhouse under study, as is the case in the open. A footprint model available in the literature was found to be reliable in assessing the footprint under screenhouse conditions. Implications, both scientific and agricultural The study established for the first time, both experimentally and theoretically, the use of the eddy covariance technique for flux measurements within agricultural screenhouses. Such measurements, along with reliable theoretical models, will enable more accurate assessments of crop water use which may lead to improved crop water management and increased water use efficiency of screenhouse crops.
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DEPARTMENT OF DEFENSE WASHINGTON DC. Military Standard. Measurement of Electromagnetic Interference Characteristics. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada294943.

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Marshall, R. D., Long T. Phan, and M. Celebi. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4511.

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Phan, Long T., Erik M. Hendrickson, and Richard D. Marshall. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4782.

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Marshall, R. D., and T. Long Phan. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4884.

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Bolen, Scott. Monopulse Tracker Operating Characteristics Measurement Error Performance for Azimuth Tracking. Fort Belvoir, VA: Defense Technical Information Center, June 1994. http://dx.doi.org/10.21236/ada281188.

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Author, Not Given. Housing characteristics, 1987: Residential Energy Consumption Survey. Office of Scientific and Technical Information (OSTI), May 1989. http://dx.doi.org/10.2172/6112183.

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Church, M., S. Hsueh, P. Rapidis, and S. Werkema. Energy and energy width measurement in the FNAL antiproton accumulator. Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/6008878.

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Church, M., S. Hsueh, P. Rapidis, and S. Werkema. Energy and energy width measurement in the FNAL antiproton accumulator. Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/10114206.

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