Journal articles: 'Power productions'

1

Leventopoulos, Mélisande. "« Catholics and Cinema : productions, policies, power »." 1895, no. 64 (September 1, 2011): 160–64. http://dx.doi.org/10.4000/1895.4381.

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Ibrahim, Noor ‘Adilah. "MODELLING OF INTRADAY PHOTOVOLTAIC POWER PRODUCTION." Malaysian Journal of Science 40, no. 2 (June 30, 2021): 105–24. http://dx.doi.org/10.22452/mjs.vol40no2.8.

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Photovoltaic (PV) productions should occur within a time interval of sunlight. Time mismatches are detected between sunrise and first production hour as well as sunset and last production hour in a transmission system operator, Amprion, Germany. Hence, in this paper, we investigate this effect using an additive function of two seasonalities and a stochastic process. Both seasonalities are based on the mimicked locations, corrected by a weighing scale, depending on the first and last production hours' coordinates. The result shows that the proposed deterministic model could capture the effect of sunrise and sunset. Also, the dynamics of random components are sufficiently explained by an autoregressive process of order two. Finally, the Normal Inverse Gaussian distribution is shown as the best distribution in explaining noise behaviour, particularly heavy tails in the production's residuals, compared to the Gaussian distribution.

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Janz, Wesley. "Theaters of Power: Architectural and Cultural Productions." Journal of Architectural Education 50, no. 4 (May 1997): 230–43. http://dx.doi.org/10.1080/10464883.1997.10734730.

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Janz, Wesley. "Theaters of Power: Architectural and Cultural Productions." Journal of Architectural Education (1984-) 50, no. 4 (May 1997): 230. http://dx.doi.org/10.2307/1425436.

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Zylstra, Geoff D. "Productions of Space, Productions of Power: Studying Space, Urban Design, and Social Relations." Journal of Urban History 43, no. 3 (February 1, 2017): 562–69. http://dx.doi.org/10.1177/0096144217694609.

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Woo, Tae-Ho, and Un-Chul Lee. "Modeling of Operational Safeguard for Power Productions in the Nuclear Power Plants (NPPs)." Energy Exploration & Exploitation 28, no. 6 (December 2010): 433–49. http://dx.doi.org/10.1260/0144-5987.28.6.433.

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S, Shantharaju. "Declining Bargain Power: Streaming, Production, and Entertainment Labour." Artha Journal of Social Sciences 19, no. 3 (December 10, 2020): 21–35. http://dx.doi.org/10.12724/ajss.54.2.

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The fluidity of time and space, diverse collection, and personalized recommendations of streaming (OTT players) would mean a lot to a viewer looking for instant entertainment. On the other hand, such transitions from traditional viewing platforms pose a diverse challenge to everyone involved in entertainment productions. The remote select button is replaced with a scrolling option, but the difference is in the platform's 'thinking' or analytical algorithm, which was not part of traditional TV or Cinema hall. This global shift might be beneficial to a few and yet, lowers the number of personnel involved in productions. This is a conceptual paper looking into the interaction between streaming and the entertainment industry labour.

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Suchet, Daniel, Adrien Jeantet, Thomas Elghozi, and Zacharie Jehl. "Defining and Quantifying Intermittency in the Power Sector." Energies 13, no. 13 (July 1, 2020): 3366. http://dx.doi.org/10.3390/en13133366.

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The lack of a systematic definition of intermittency in the power sector blurs the use of this term in the public debate: the same power source can be described as stable or intermittent, depending on the standpoint of the authors. This work tackles a quantitative definition of intermittency adapted to the power sector, linked to the nature of the source, and not to the current state of the energy mix or the production predictive capacity. A quantitative indicator is devised, discussed and graphically depicted. A case study is illustrated by the analysis of the 2018 production data in France and then developed further to evaluate the impact of two methods often considered to reduce intermittency: aggregation and complementarity between wind and solar productions.

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Hagglund, Kent. "Issues of Sexuality and Power: Five Swedish ‘Dreams’, 1989–90." New Theatre Quarterly 8, no. 29 (February 1992): 23–33. http://dx.doi.org/10.1017/s0266464x0000628x.

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Why should one of Shakespeare's plays suddenly receive almost as many productions in a single season in the Swedish theatre as it had done during the whole previous decade? Kent Hagglund, in analyzing and comparing the five productions of A Midsummer Night's Dream seen in his country between July 1989 and June 1990, explains some of the accidental reasons for such a convergence of interest – such as the availability of a new and clear modern translation, which is only now becoming part of Swedish theatrical consciousness. But he also looks at those elements in the play itself which give it a sudden contemporary relevance – notably, the struggle for dominance which manifests itself in forms of sexual violence. All five productions prove to have been closely concerned with this issue, which, suggests Hagglund, also reflects an important aspect of the crisis afflicting ‘the Swedish social ideal’ today.

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Gambini, Marco, and Michela Vellini. "Hybrid thermal power plants: Solar-electricity and fuel-electricity productions." Energy Conversion and Management 195 (September 2019): 682–89. http://dx.doi.org/10.1016/j.enconman.2019.04.073.

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Kastanya, Doddy. "On the use of average power in predicting radioisotope productions." Annals of Nuclear Energy 165 (January 2022): 108648. http://dx.doi.org/10.1016/j.anucene.2021.108648.

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Ai, Qian, and Yanting Huang. "Research on probability product differentiation based on power equilibrium." E3S Web of Conferences 253 (2021): 03064. http://dx.doi.org/10.1051/e3sconf/202125303064.

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Overall the benefit of Supply Chain Based on probabilistic production and power equilibrium, the influencing factors of the decision-making of probabilistic productions are studied in this paper. Firstly, the correlation function of profit is formed by solving the lowest utility of products. Then numerical simulation and example research are carried out. The results show that, there is a positive correlation property between the two types of products which formed probabilistic production and supply chain efficiency. At the same time, manufacture and retailer should also pay attention to the proportion of the two types of products in order to achieve the best overall benefit. The conclusion in this paper has practical significance, it has a significant impact on the decision-making under the power equilibrium.

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Boffone, Trevor. "Whitewashed Usnavi: Race, power and representation in In the Heights." Studies in Musical Theatre 13, no. 3 (December 1, 2019): 235–50. http://dx.doi.org/10.1386/smt_00003_1.

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This article focuses on questions of race, power and representation in regional productions of Lin-Manuel Miranda and Quiara Alegría Hudes’ 2008 Tony Award-winning musical In the Heights. While issues of representation in In the Heights did not begin in 2016, this article uses the Porchlight Music Theatre production as a point of departure to analyse how the musical became a contentious performance text in the post-Hamilton era. This study focuses on how theatre companies that have not traditionally produced Latinx stories have used In the Heights as an entry-point into the Latinx community and as a way to capitalize from the unprecedented success of Miranda’s Hamilton.

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Martín, M. L., F. Valero, A. Pascual, J. Sanz, and L. Frias. "Analysis of wind power productions by means of an analog model." Atmospheric Research 143 (June 2014): 238–49. http://dx.doi.org/10.1016/j.atmosres.2014.02.012.

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Иванников, Valeriy Ivannikov, Сушков, Sergey Sushkov, Никонов, and Vadim Nikonov. "DEVELOPMENT OF MODELS OF TRANSPORT AND DISTRIBU-TIVE TASKS FOR VARIOUS CATEGORIES OF FOREST AREAS." Voronezh Scientific-Technical Bulletin 4, no. 2 (June 30, 2015): 57–61. http://dx.doi.org/10.12737/14385.

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In article the system of transport tasks (distributive, systems of drawing up balance of production and consumption of forest products), and also problems of optimization of planning of placement and concentration of production of forest products is considered. Various options of statement of tasks depending on power both the procuring, and processing productions are considered. As criteria of op-timization expensive indicators which need to be minimized are applied.

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Podhurenko, Volodymyr, Yulii Kutsan, Oleg Getmanets, and Volodymyr Terekhov. "Modeling of electricity production by wind power stations of Ukraine." E3S Web of Conferences 280 (2021): 09010. http://dx.doi.org/10.1051/e3sconf/202128009010.

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Based on the results of actual multi-year measurements of wind speeds, numerical calculations have been made of the forecast energy productions of 43 megawatt-high power stations of the leading world producers in the wind conditions of the North Black Sea region of Ukraine. The established correlation between the annual energy production of wind power station (WPS) and its basic parameters (nameplate capacity, diameter of the rotor and hub height) allowed to develop a mathematical model of the forecast annual energy production of WPS. The calculations for the mathematical model are well in line with the operational parameters of the generation. The mathematical model makes it possible to quickly and reliably select (or design) the optimal wind turbine for industrial wind power in the North Black Sea, thus taking a significant step in reducing the energy dependency, environmental protection and the transition to energy-efficient and environmentally friendly technologies enabling Ukraine to reach the level of advanced states in the development of wind energy.

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Cereci, Sedat. "Social responsibility of media on environmental dangers: Warning productions." World Journal of Environmental Research 7, no. 1 (September 7, 2017): 27–35. http://dx.doi.org/10.18844/wjer.v7i1.2383.

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Abstract Environmental problems are the most serious matters which are caused by electrical and electronical and technological conditions in the world. Media are the most common instruments in the world and numerous messages are conveyed via media, even warnings or threats. Media have sovereignty on people and have power to persuade people and to persuade administrators. All topics and all matters can be used by media and media can change all matters to attractive topics and media can set a fantastic imaginary world for people. Environmental matters are sometimes used by media but media ususally focus sensational dimensions of environment and serious problems about environment are generally ignored. Media have many facilities and great power to warn people about environmental risks and envitonmental dangers and environmental responsibilities. Keywords: Environment, media, responsibility, danger, warning.

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Cerniglia, Ken, and Aubrey Lynch. "Embodying Animal, Racial, Theatrical, and Commercial Power in The Lion King." Congress on Research in Dance Conference Proceedings 2011 (2011): 3–9. http://dx.doi.org/10.1017/s0149767711000234.

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Disney stories and characters have delighted international audiences for nearly nine decades, but as The Walt Disney Company has sought to reach new markets in the twenty-first century, Disney's live theatrical productions have served a unique and powerful ambassadorial function in which body and representation play vital roles. In 1997, Julie Taymor's production of The Lion King, which is inspired by several cultural traditions, opened on Broadway to critical and popular acclaim. The musical has since been translated into six languages and has played in over a dozen productions around the world.While the characters are animals, The Lion King is a human fable, and Taymor was determined that audiences see the fictional animals and real, live humans at the same time–what she termed the “double event.” With her unique vision as a guide, she enlisted an international creative team: film co-director Roger Allers and co-writer Irene Mecchi as book writers, Rhodesia-born Brit Richard Hudson as set designer, Michael Curry as puppet co-designer, Garth Fagan as choreographer, and a handful of diverse composers and lyricists to create the score–Elton John and Tim Rice, Lebo M, Hans Zimmer, Mark Mancina, and Taymor herself.Despite consciously postmodern, internationalist, and postcolonial aims–which have earned both economic and political rewards–the creative process, product, and reception have not arrived without challenges, complications, and criticism. This paper examines how The Lion King attempts to harness animal, racial, theatrical, and commercial power for diverse audiences in a global age.

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Khakimovich, Siddikov Ilkhom, Makhsudov Mokhirbek Tolibjonovich, Boikhanov Zailobiddin Urazalio'gli, and Uzaqov Rakhmanjan. "Features productions reactive power on systems electrical supply with renewable sources energies." ACADEMICIA: An International Multidisciplinary Research Journal 10, no. 6 (2020): 292. http://dx.doi.org/10.5958/2249-7137.2020.00591.1.

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Saleh, Layla, Mohamed al Zaabi, and Toufic Mezher. "Estimating the social carbon costs from power and desalination productions in UAE." Renewable and Sustainable Energy Reviews 114 (October 2019): 109284. http://dx.doi.org/10.1016/j.rser.2019.109284.

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Wang, Wei-Chih. "Power asymmetries in intercultural theatre in Taiwan: Flagship productions and audience response." East Asian Journal of Popular Culture 3, no. 2 (August 1, 2017): 183–98. http://dx.doi.org/10.1386/eapc.3.2.183_1.

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Fan, Yan Li, and Qing En Li. "Design of Low-Voltage Power Distribution System." Advanced Materials Research 791-793 (September 2013): 1889–91. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1889.

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The low-voltage distribution system is the key component of the electrical power system. Some analysis and research of the low-voltage distribution system is carried out in this paper, which provides some scientific basis to design the low-voltage distribution system. Firstly, the summarize of low-voltage distribution system is taken. The influence to productions and livings of low-voltage distribution system is introduced. Secondly, the mode of connection and design philosophy of low-voltage distribution system is studied in detail, especially the high-rise buildings low-voltage distribution system is concluded and summarized.

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23

Wambaugh, Julie L., Patrick J. Doyle, Joan E. West, and Michelene M. Kalinyak. "Spectral Analysis of Sound Errors in Persons With Apraxia of Speech and Aphasia." American Journal of Speech-Language Pathology 4, no. 4 (November 1995): 186–92. http://dx.doi.org/10.1044/1058-0360.0404.186.

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Incorrect productions of [∫] were compared to correct productions of [s] and [∫] in two subjects with apraxia of speech and aphasia. Frequencies of the peak spectral energy (FPSE) were extracted from power spectrums of monosyllabic words. In addition, in order to verify that [s] and [∫] could be differentiated in terms of FPSE, we obtained speech samples of correct productions of [s] and [∫] from two normal male speakers. A perceptual task was also completed by requiring two listeners to categorize recorded productions. Results revealed significant differences among sound categories for Subject 1, but not for Subject 2. That is, Subject 1's incorrect [∫] productions were acoustically different from his homonymous [s] productions, whereas the productions were not acoustically different for Subject 2. These findings suggest that Subject 1's /∫/errors were not errors of substitution, but would be more appropriately characterized as distortions. Conversely, this spectral analysis did not clarify the nature of Subject 2's incorrect /∫/ productions; both substitution and distortion remained possible appropriate descriptors of his sound errors.

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Sokolskaya, Anna. "“Obedient bodies”: Space, time and sound in the operas by Christoph Marthaler." Practices & Interpretations: A Journal of Philology, Teaching and Cultural Studies 5, no. 1 (March 1, 2020): 34–49. http://dx.doi.org/10.18522/2415-8852-2020-1-34-49.

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The article discusses the relationships between musical performance, theatrical space and gesturality in Christoph Marthaler’s operatic productions. The stage design, the types of actor’s physical and vocal expressivity in “Le Nozze di Figaro”, “La Grande Duchesse de Gérolstein”, “Kát’a Kabanová”, “Věc Makropulos”, “Les Contes d’Hoffmann” and “Tristan und Isolde” are studied. Gesture, vocalisation and text in Marthaler’s productions are discussed and interpreted by considering the mismatching of dance and musical rhythm, the contrast of academical and non-academical singing manners or soundless articulation, as well as emphasizing the visual side of musical performance. Ensemble music-making and figurative gestures are the metaphors of power relations, total control and the collapse of social structures. It is concluded that the ways of vocalization and the types of gestures embody the system of power. The society in Marthaler’s operatic stage productions appears as an ensemble of the discursive practices.

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Ganguly, Lauhona. "Global Television Formats and Their Impact on Production Cultures: The Remaking of Music Entertainment Television in India." Television & New Media 20, no. 1 (February 27, 2018): 20–35. http://dx.doi.org/10.1177/1527476418759215.

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This article focuses on the impact of global television formats on local (nonformat) homegrown shows and examines how formats reshape industrial–cultural conventions for local productions. Empirically, the article looks at how (Indian) Idol rewrites cultural values, assumptions, and norms for nonfictional entertainment, particularly music talent shows in India. Using a production studies approach, analysis zooms in on production negotiations—the strategies and goals of the Idol format, specific calculations targeting Indian market, and how rival, homegrown shows review and revise (or reject) a format’s appeals. By investigating how producers from local nonformat shows such as Saregamapa (discussed further in the article) deliberate and rewrite their productions to challenge and overcome Idol’s allure while also adopting Idol’s features, this article argues that format copying is a coping mechanism, which reveals the tactical, creative, and cultural responses to the power of global media capital and not creative lethargy or mere copycatting.

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Zhao, Gang, Hua Zhang, Zhi Gang Jiang, Wei Yan, and Yan Hong Wang. "Green Optimization Based on Cellular Automata for Process Planning and Production Operation in Workshop." Advanced Materials Research 255-260 (May 2011): 2174–78. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.2174.

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On the principle of green planning for the industial production, the optimization model oriented to the environmental attributes is discussed and solved by the genetic algorithm improved with the cellular automata based on an artificial life game. The solution of the influencing factors in production offers the optimal operational parameters. To achieve those optimal parameters in actual production, some innovations and integrated technologies are applied in the process planning and multiple productions in workshop. Technical route, new organic methods, application technology and facilities for complex productions are contributed to improve the process planning and physical manufacturing for mass products. A comprehensive assessment system based on resource and environment attributes for production is developed for the process planning and operational optimization for each general product. The case study on the typical product of the valve used in thermal power generation is demonstrated in this paper. An optimistic estimate on the resource and environment impacts is obtained when the green optimization is entirely implemented for the process planning and production operation in the manufacturing workshop.

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Khoseini, Kh, A. N. Mikhailov, M. S. Kuz’min, and B. V. Berdyshev. "Deformation Processes in Mechanothermoforming Productions." Chemical and Petroleum Engineering 41, no. 3-4 (March 2005): 109–15. http://dx.doi.org/10.1007/s10556-005-0070-1.

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Abdelsalam, Emad, Feras Kafiah, Malek Alkasrawi, Ismael Al-Hinti, and Ahmad Azzam. "Economic Study of Solar Chimney Power-Water Distillation Plant (SCPWDP)." Energies 13, no. 11 (June 1, 2020): 2789. http://dx.doi.org/10.3390/en13112789.

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This work provides technical and economic feasibility of installing a solar chimney power-water distillation plant (SCPWDP) in the port of Aqaba in Jordan. A mathematical model for the SCPWDP has been developed and validated. A full year of weather conditions data has been processed, where water and electricity productions have been estimated. The results show that the SCPWDP can produce 481,440 kWh of electricity and 123,753 ton of distilled water yearly simultaneously. The economic analysis shows that the levelized cost of energy (LCOE) for the SCPWDP is $1.86/kWh. The cost estimate seems reasonable once compared with other studies. However, from economical point of view the LCOE of SCPWDP requires a further decrease in order to make it economically feasible. The sensitivity analysis shows that increasing the chimney height of the SCPWDP would increase the production of electricity, and hence, decreases the LCOE. However, increasing the chimney height would have a marginal improvement since it increases both capital and operation expenditures.

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Sutherland, Lucie. "‘The Power of Attraction’: the Staging of Wilde and his Contemporaries at the St James's Theatre, 1892–1895." New Theatre Quarterly 31, no. 1 (January 30, 2015): 33–48. http://dx.doi.org/10.1017/s0266464x15000044.

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The actor-manager system remained pivotal to West End production throughout the later nineteenth century. Focusing on one actor-manager, George Alexander, and using records of his expenditure on productions during the early 1890s, Lucie Sutherland demonstrates how financial data can be used to examine evolving relationships between industry leaders and dramatic authors in this era. She argues that this kind of evidence demonstrates not only the fiscal dimension to such relationships – level of investment per production, percentage of royalties paid – but also that the data may be analyzed to ascertain the responsiveness of an actor-manager to income generated. Here, significant attention is paid to box-office revenue and expenditure for the first productions of Lady Windermere's Fan and The Importance of Being Earnest, exploring the income Alexander achieved by staging Wilde's drama prior to the arrest and trials of 1895. The use of quantitative data allows for close scrutiny of the work undertaken by prominent figures in the professional theatre; familiar narratives can be contested and endorsed through engagement with this type of material. Lucie Sutherland is a Teaching Associate in Drama and Performance at the University of Nottingham. She has written on aspects of nineteenth- and twentieth-century British theatre, including regional performance cultures and the impact of increasing professional regulation (for example the emergence of an actors' union) upon commercial theatre. She is currently completing a critical biography of Alexander.

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Darwish, M. A. "Prospect of using alternative energy for power and desalted water productions in Kuwait." Desalination and Water Treatment 36, no. 1-3 (December 2011): 219–38. http://dx.doi.org/10.5004/dwt.2011.2474.

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Xu, Jian, Siyang Liao, Yuanzhang Sun, Xi-Yuan Ma, Wenzhong Gao, Xiaomin Li, Junhe Gu, Jianxun Dong, and Mi Zhou. "An Isolated Industrial Power System Driven by Wind-Coal Power for Aluminum Productions: A Case Study of Frequency Control." IEEE Transactions on Power Systems 30, no. 1 (January 2015): 471–83. http://dx.doi.org/10.1109/tpwrs.2014.2322080.

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Babu, Attuluri R. Vijay, K. Suresh, Pillutla Murali Krishna, and Shaik Ashfaq Hussain. "Design and Implementation of High Efficient Single Phase Transformer Less Inverter for Grid Connected Solar Photovol-taic Energy System." International Journal of Engineering & Technology 7, no. 4.24 (November 27, 2018): 108. http://dx.doi.org/10.14419/ijet.v7i4.24.21867.

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Solar energy is the most available energy among all the renewable energies, and the available range is almost 86000 TW. The global overall demand is 15TW, so only three hours production of electrical energy from solar is enough to compensate the power demand for a complete year.Clean and green environments are very much help for living things, non-renewable energy productions creates environmental pollution. Stand-alone system with renewable energy might be facing power failure and also effective utilizations also not possible. Excess power should be export to grid and whenever the power shortage which is compensates by import power from grid, and then only effective utilization is possible. This paper deals with the investigations on transformer less inverter topologies and control strategies for grid connected PV system. The proposed work has high efficient single phase transformer less inverter which is controlled by PIC 16F877. This arrangement has an advantage of reliability and high level of efficiency.

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Yang, Honglun, Qiliang Wang, Jingyu Cao, Gang Pei, and Jing Li. "Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver." Frontiers in Energy 14, no. 4 (November 20, 2020): 867–81. http://dx.doi.org/10.1007/s11708-020-0707-y.

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AbstractThis paper proposes a comprehensive thermodynamic and economic model to predict and compare the performance of concentrated solar power plants with traditional and novel receivers with different configurations involving operating temperatures and locations. The simulation results reveal that power plants with novel receivers exhibit a superior thermodynamic and economic performance compared with traditional receivers. The annual electricity productions of power plants with novel receivers in Phoenix, Sevilla, and Tuotuohe are 8.5%, 10.5%, and 14.4% higher than those with traditional receivers at the outlet temperature of 550°C. The levelized cost of electricity of power plants with double-selective-coated receivers can be decreased by 6.9%, 8.5%, and 11.6%. In Phoenix, the optimal operating temperature of the power plants is improved from 500°C to 560°C by employing a novel receiver. Furthermore, the sensitivity analysis of the receiver heat loss, solar absorption, and freeze protection temperature is also conducted to analyze the general rule of influence of the receiver performance on power plants performance. Solar absorption has a positive contribution to annual electricity productions, whereas heat loss and freeze protection temperature have a negative effect on electricity outputs. The results indicate that the novel receiver coupled with low melting temperature molten salt is the best configuration for improving the overall performance of the power plants.

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Bakır, Gizem, Saltuk Buğra Selçuklu, and Hüseyin Yapıcı. "Medical Radioisotope Production in a Power-Flattened ADS Fuelled with Uranium and Plutonium Dioxides." Science and Technology of Nuclear Installations 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/5302176.

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This study presents the medical radioisotope production performance of a conceptual accelerator driven system (ADS). Lead-bismuth eutectic (LBE) is selected as target material. The subcritical fuel core is conceptually divided into ten equidistant subzones. The ceramic (natural U, Pu)O2fuel mixture and the materials used for radioisotope production (copper, gold, cobalt, holmium, rhenium, thulium, mercury, palladium, thallium, molybdenum, and yttrium) are separately prepared as cylindrical rods cladded with carbon/carbon composite (C/C) and these rods are located in the subzones. In order to obtain the flattened power density, percentages of PuO2in the mixture of UO2and PuO2in the subzones are adjusted in radial direction of the fuel zone. Time-dependent calculations are performed at 1000 MW thermal fission power (Pth) for one hour using the BURN card. The neutronic results show that the investigated ADS has a high neutronic capability, in terms of medical radioisotope productions, spent fuel transmutation and energy multiplication. Moreover, a good quasiuniform power density is achieved in each material case. The peak-to-average fission power density ratio is in the range of 1.02–1.28.

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Al-Dahidi, Sameer, Osama Ayadi, Jehad Adeeb, Mohammad Alrbai, and Bashar R. Qawasmeh. "Extreme Learning Machines for Solar Photovoltaic Power Predictions." Energies 11, no. 10 (October 11, 2018): 2725. http://dx.doi.org/10.3390/en11102725.

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The unpredictability of intermittent renewable energy (RE) sources (solar and wind) constitutes reliability challenges for utilities whose goal is to match electricity supply to consumer demands across centralized grid networks. Thus, balancing the variable and increasing power inputs from plants with intermittent energy sources becomes a fundamental issue for transmission system operators. As a result, forecasting techniques have obtained paramount importance. This work aims at exploiting the simplicity, fast computational and good generalization capability of Extreme Learning Machines (ELMs) in providing accurate 24 h-ahead solar photovoltaic (PV) power production predictions. The ELM architecture is firstly optimized, e.g., in terms of number of hidden neurons, and number of historical solar radiations and ambient temperatures (embedding dimension) required for training the ELM model, then it is used online to predict the solar PV power productions. The investigated ELM model is applied to a real case study of 264 kWp solar PV system installed on the roof of the Faculty of Engineering at the Applied Science Private University (ASU), Amman, Jordan. Results showed the capability of the ELM model in providing predictions that are slightly more accurate with negligible computational efforts compared to a Back Propagation Artificial Neural Network (BP-ANN) model, which is currently adopted by the PV system owners for the prediction task.

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Voisin, Nathalie, Alan F. Hamlet, L. Phil Graham, David W. Pierce, Tim P. Barnett, and Dennis P. Lettenmaier. "The Role of Climate Forecasts in Western U.S. Power Planning." Journal of Applied Meteorology and Climatology 45, no. 5 (May 1, 2006): 653–73. http://dx.doi.org/10.1175/jam2361.1.

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Abstract The benefits of potential electric power transfers between the Pacific Northwest (PNW) and California (CA) are evaluated using a linked set of hydrologic, reservoir, and power demand simulation models for the Columbia River and the Sacramento–San Joaquin reservoir systems. The models provide a framework for evaluating climate-related variations and long-range predictability of regional electric power demand, hydropower production, and the benefits of potential electric power transfers between the PNW and CA. The period of analysis is 1917–2002. The study results show that hydropower production and regional electric power demands in the PNW and CA are out of phase seasonally but that hydropower productions in the PNW and CA have strongly covaried on an annual basis in recent decades. Winter electric power demand and spring and annual hydropower production in the PNW are related to both El Niño–Southern Oscillation (ENSO) and the Pacific decadal oscillation (PDO) through variations in winter climate. Summer power demand in CA is related primarily to variations in the PDO in spring. Hydropower production in CA, despite recent covariation with the PNW, is not strongly related to ENSO variability overall. Primarily because of strong variations in supply in the PNW, potential hydropower transfers between the PNW and CA in spring and summer are shown to be correlated to ENSO and PDO, and the conditional probability distributions of these transfers are therefore predictable with long lead times. Such electric power transfers are estimated to have potential average annual benefits of $136 and $79 million for CA and the PNW, respectively, at the year-2000 regional demand level. These benefits are on average 11%–27% larger during cold ENSO/PDO events and are 16%–30% lower during warm ENSO/PDO events. Power transfers from the PNW to CA and hydropower production in CA are comparable in magnitude, on average.

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Bi, Da Sen, Yao Dong Zhou, and Liang Chu. "Coupling Analysis on Hydrauic Press and Forming Moulds of the Containment of Nuclear Power Reactor." Materials Science Forum 704-705 (December 2011): 1437–43. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1437.

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Based on actual production, the each mould in the production line of containment of nuclear power reactor and the frame of THP22-4000 hydraulic press was modeled by coupling method. By using the finite element analysis simulation software ANSYS Workbench, the stiffness and strength of each coupling models were analyzed by node-coupling method. According to the results having been analyzed formerly, the distribution of stress and strain of each coupling models were studied, and the influence rules of assembly area of mould on workbench and close-height of mould on coupling stiffness were drawn, so as to guide the mold and the hydraulic structure design and optimization. Under the prerequisite of ensuring the forming precision of containment, it would be possible to configure and optimize scientifically and rationally the structure of forming molds and equipments, lower the costs of productions, and obtain higher economic benefits.

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Dors, Priscilla, Mari Lucia Campos, Martha Andreia Brand, and David José Miquelluti. "Biochar and its adsorbent power. How are scientific publications about this issue?" Research, Society and Development 10, no. 10 (August 5, 2021): e61101018520. http://dx.doi.org/10.33448/rsd-v10i10.18520.

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Bibliometric analysis seeks to evaluate scientific productions, enabling the compilation of various types of information such as effective publications, authors and shows the direction of future productions. Biochar is the name given to biomass of plant origin that has undergone a burning process. The biochar has gained prominence in recent years for its versatile material. Rich in carbon and used for carbon sequestration, nutrient retention, it improves soil fertility, the physical and biological properties of the soil and increases agricultural yield. It is a promising adsorbent for the remediation of organic and inorganic contaminants from soil and water. This study aims to analyse qualitatively and quantitatively, using bibliometric methods, the publications of research articles related to the use of biochar as an adsorbent, in the period 2011-2021. The base data for this research were collected in October 2020, in the Scopus database. The selected articles were analysed with the aid of VOsviewer®. There was an advance in studies on biochar in the period. The largest number of articles cited and the highest productivity are Chinese. The predominant language is English and the predominant area is environmental sciences.

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Anchrum, Hafeeza. "Power to Heal: Medicare and the Civil Rights Revolution, by BLB Film Productions, LLC." Nursing History Review 28, no. 1 (September 1, 2019): 196–98. http://dx.doi.org/10.1891/1062-8061.28.196.

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Olivier, Lawrence. "La question du pouvoir chez Foucault: espace, stratégie et dispositif." Canadian Journal of Political Science 21, no. 1 (March 1988): 83–98. http://dx.doi.org/10.1017/s0008423900055621.

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AbstractMichel Foucault's framework has substantially changed the manner in which we understand power. His analysis substitutes for theoretical representations a study of complex mechanisms of production like strategy, tactic, apparatus, technologies, and so forth. Those terms are not simply figures of speech or analogies. The archaeology of knowledge brings a new perspective of study for social analysis: space. That concept shapes Foucault's approach from L'Histoire de la folie to Souci de soi. From that point of view, it is less important to linger on his notion of power than to inquire about his general theory of productions developped through the archaeological analysis of madness, jail, sexuality or subjectivity. It is in this fashion that Michel Foucault's work will contribute to modify social and human sciences' practices

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Jourdier, Bénédicte, and Philippe Drobinski. "Errors in wind resource and energy yield assessments based on the Weibull distribution." Annales Geophysicae 35, no. 3 (May 31, 2017): 691–700. http://dx.doi.org/10.5194/angeo-35-691-2017.

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Abstract. The methodology used in wind resource assessments often relies on modeling the wind-speed statistics using a Weibull distribution. In spite of its common use, this distribution has been shown to not always accurately model real wind-speed distributions. Very few studies have examined the arising errors in power outputs, using either observed power productions or theoretical power curves. This article focuses on France, using surface wind measurements at 89 locations covering all regions of the country. It investigates how statistical modeling using a Weibull distribution impacts the prediction of the wind energy content and of the power output in the context of an annual energy production assessment. For this purpose it uses a plausible power curve adapted to each location. Three common methods for fitting the Weibull distribution are tested (maximum likelihood, first and third moments, and the Wind Atlas Analysis and Application Program (WAsP) method). The first two methods generate large errors in the production (mean absolute error around 5 %), especially in the southern areas where the goodness of fit of the Weibull distribution is poorer. The production is mainly overestimated except at some locations with bimodal wind distributions. With the third method, the errors are much lower at most locations (mean absolute error around 2 %). Another distribution, a mixed Rayleigh–Rice distribution, is also tested and shows better skill at assessing the wind energy yield.

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Kim, Youjin, Galih Bangga, and Antonio Delgado. "Investigations of HAWT Airfoil Shape Characteristics and 3D Rotational Augmentation Sensitivity Toward the Aerodynamic Performance Improvement." Sustainability 12, no. 18 (September 15, 2020): 7597. http://dx.doi.org/10.3390/su12187597.

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This study investigates the impacts of dierent airfoil shapes on the 3D augmentationand power production of horizontal axis wind turbines (HAWTs). The aerodynamic eect fromchanging the leading and trailing edge of the airfoil is the emphasis of the research. Varied powerproduced from modifying sensitivity on 3D augmentations, caused by revamping airfoil shapes, areshown. The 3D correction law, considering the chord to radius ratio and the blades’ pitch angle inthe rotation, is applied to the airfoil lift coecients. The blade element method (BEM) embeddedin the software Qblade with modified lift coecients simulates the power productions of threewind turbines from these airfoils. The comparisons of the boundary layer characteristics, sectionalforces, and inflow angle of the blade sections are calculated. The k-omega SST turbulence model inOpenFoam visualizes the stall and separation of the blades’ 2D section. The airfoils with a roundedleading edge show a reduced stall and separated flow region. The power production is 2.3 timeshigher for the airfoil constructed with a more rounded leading edge S809r and two times higher forthe airfoil S809gx of the symmetric structure.

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Khadka, Shree Ram. "Estimation of the Largest and the Smallest Function Values of a Feasible Solution for the Total Product Rate Variation Problem." Journal of Institute of Science and Technology 19, no. 1 (November 8, 2015): 35–38. http://dx.doi.org/10.3126/jist.v19i1.13824.

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The problem of minimizing the total deviations between the actual and the ideal cumulative production of a variety of models of a common base product arises as a sequencing problem in mixed-model just-in-time production systems. This is called the total product rate variation problem. Several pseudo-polynomial exact algorithms and heuristics have been derived for this problem. In this paper, we estimate the largest and the smallest function values of a feasible solution for the problem when the m-th power of the total deviations between the actual and the ideal cumulative productions has to be minimizedJournal of Institute of Science and Technology, 2014, 19(1): 35-38

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Christian, Aymar Jean. "Expanding production value: The culture and scale of television and new media." Critical Studies in Television: The International Journal of Television Studies 14, no. 2 (May 16, 2019): 255–67. http://dx.doi.org/10.1177/1749602019838882.

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Web, or networked, distribution technologies have challenged the power of US media corporations, which set high technical standards for production value, a measure of content quality. Legacy TV companies privilege complex, seamless technical execution supported by large crews of workers – lighting, sound, design, visual effects – but exclude as producers culturally marginalised creators perceived as too risky for the big investment necessary to execute it. The internet disrupts these dynamics by allowing for the distribution of smaller scale TV and video productions that are independently or inexpensively made. In smaller scale work, cultural production value asserts more importance, as producers create with and for their community.

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Zhao, Gang, Hua Zhang, Zhi Gang Jiang, Wei Yan, and Ming Xiao. "An Integrated Technology of Green Planning for Workshop Layout and Machining Operations." Applied Mechanics and Materials 121-126 (October 2011): 2497–501. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.2497.

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A thermal power valve workshop applying the integrated technology of green planning for workshop layout and machining operations (GPIT) has been constructed from the demands of enterprise development. The key technology is to model the full life cycle production for the typical products in the workshop and carry out a green planning for the whole workshop. By the attribute analysis of the resource consumption and environment impacts, some adaptive processes of green manufacturing and prototypes of processing devices are developed for the physical productions in the valve workshop. The green planning and optimal operation for the workshop production is implemented and the remarkable environmental and economic benefits are gained.

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Rakic, Nikola, Dusan Gordic, Vanja Sustersic, Mladen Josijevic, and Milun Babic. "Renewable electricity in Western Balkans: Support policies and current state." Thermal Science 22, no. 6 Part A (2018): 2281–96. http://dx.doi.org/10.2298/tsci180512169r.

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The use of renewable energy sources for electricity generation in the Western Balkan countries is analyzed in this review paper. Since those countries are part of EU or intend to be, data for Western Balkan are also compared with data for EU-28. The first part of the paper presents a brief overview of main promotion mechanism for electricity generation from renewable energy sources. As a dominant support policy, the feed-in tariff is more elaborated as an incentive measure and a de?tailed overview of the amount of tariffs and quotas for dominant technologies in the Western Balkan countries is presented. Furthermore, the current state of installed capacities and annual productions of three particular renewable electricity technologies (small hydro power, wind power, and solar photovoltaic) are analyzed in detailes. Based on presented data, there is a discussion and consideration of the impact of incentive measures on the electricity market and power production from renewable sources.

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Mao, Cui Ping, and Shu Bin Wu. "Preparation and Surface Properties Investigation of Lignin-Phonls Non-Ionic Surfactant." Advanced Materials Research 647 (January 2013): 762–68. http://dx.doi.org/10.4028/www.scientific.net/amr.647.762.

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Surfactants from modified lignin have received growing attention recently. Lignin is an inevitable by-product of the chemical manufacturing processes for cellulose and pulping. Furthermore, this class of chemical has vast availability around the world. Due to the interactions of hydrophobic and hydrophilic groups on the interface, lignin modified surfactants present favorable surfactivity. In this paper, alkali lignin (AL) suffered the liquefaction treatment into liquefid alkali lignin (L-AL), of which major constituents were lignin-phenols. Hydrophilic modified L-AL was synthesized with epoxy chloropropane then with polyglycol. The surface tension, watersolubility and HLB value of the productions were characterized. Then the surfactant was applied to the experiments of foam properties, detergency and emulsifying power. The results showed that the modified surfactant had fine solubility in water, relatively higher HLB value of 16.26 and lower surface tention. The production had lower foaming power and foam stability. Though its decontamination performance was relatively weak，however the emulsifying power presented pretty well.

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Peck, Frederick, and Michael Matassa. "Reinventing fractions and division as they are used in algebra: the power of preformal productions." Educational Studies in Mathematics 92, no. 2 (February 22, 2016): 245–78. http://dx.doi.org/10.1007/s10649-016-9690-y.

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Zhang, Bingying, and Zijun Zhang. "A two-stage model for asynchronously scheduling offshore wind farm maintenance tasks and power productions." International Journal of Electrical Power & Energy Systems 130 (September 2021): 107013. http://dx.doi.org/10.1016/j.ijepes.2021.107013.

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Dungey, Nicholas. "Writing Kafka's Soul: Disciplinary Power, Resistance & the Authorship of the Subject." New Perspectives 26, no. 1 (February 2018): 63–85. http://dx.doi.org/10.1177/2336825x1802600109.

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Who is the real Kafka? What do his writings really mean? These are the questions that have dominated Kafka scholarship, which has predominantly focused on issues of the author's identity and the meaning of his writings. As the heirs of a modern metaphysics that posits the existence of an objectively rational and free subject, we – including many Kafka scholars – have generally assumed that there is a true self, that reason enables access to universally verifiable knowledge, and that this subject presupposes and authorizes the works of knowledge, art, and cultural productions that bears the subject's name. It is time to ask, however, whether the metaphysical approach to Kafka and his writings obscured more than it has illuminated? What if, instead, we abandon the metaphysical search for the true Kafka? There is now an emerging postmodern account of Kafka's subjectivity and the dynamic, discursive relationship between the construction of his subjectivity and the production of his writings. Utilizing Foucault's interrogation of metaphysical subjectivity, I investigate Kafka's voluminous letters and diaries as the effects of disciplinary power and the vehicles through which resistance to this power is pressed into the service of aesthetic self-creation.

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Journal articles on the topic 'Power productions'

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