Bibliografías temáticas / Efficiency improvement mechanism

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Literatura académica sobre el tema "Efficiency improvement mechanism"

Autor: Grafiati
Publicado: 11 de enero de 2025
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Efficiency improvement mechanism"

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Liu, Long Tao, and Wen Tang. "Improvement of a SIP Security Mechanism." Applied Mechanics and Materials 263-266 (December 2012): 2929–32. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.2929.

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SIP is one of the mainstream protocols in the VoIP. A majority of SIP’s security mechanism only provides a single direction authentication from server to client such as HTTP digest authentication. To improve the present situation, a new security mechanism of SIP based on the improved HTTP digest authentication is put forward in this study. This improved security mechanism not only provides a double direction authentication between the server and client but also reduces the expenses of the server and increases the authentication efficiency thanks to its low computational complexity.
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Yakubovskiy, Yuriy V., Boris I. Karastelev, and Petr M. Brovko. "Improvement of management technological development mechanism of the aviation industry enterprises." Bulletin of the Far Eastern Federal University. Economics and Management, no. 2 (74) (July 20, 2015): 42–52. https://doi.org/10.5281/zenodo.46268.

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The effect mechanism of technological development on the economic efficiency of enterprises of the Russian aviation industry. Recommendations to improve the efficiency of production activities in the aircraft industry through the harmonization of the control method based on the use of the principle of self-organization.
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Yan, Qing You, Xin Fa Tang, Juan Juan Cao, and Chao Kong. "Growth Ceiling of Energy Efficiency and Countermeasure Archetype in Electric Power Supply and Demand System." Applied Mechanics and Materials 291-294 (February 2013): 1297–302. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1297.

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Energy efficiency depends on the profit that the consumed energy contributes to human need system for the sustainable development. With the increasing importance of coordinate development of environment, economic and electric power system, it is more and more difficult to choose the right improvement path and mechanism of energy efficiency in electric-power supply and demand system. After analyzing the feedback mechanism of energy efficiency improvement of the electric power supply and demand system, energy efficiency improvement which caused the growth ceiling was found along with some inhibi
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Zhou, Pengfei, Mengyu Han, and Yang Shen. "Impact of Intelligent Manufacturing on Total-Factor Energy Efficiency: Mechanism and Improvement Path." Sustainability 15, no. 5 (2023): 3944. http://dx.doi.org/10.3390/su15053944.

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Intelligent technology is the core driving force of the fourth industrial revolution, which has an important impact on high-quality economic development. In this paper, the panel data of 30 provinces from 2006 to 2019 were selected to construct a regression model to conduct an empirical analysis on the role and mechanism of intelligent manufacturing in improving total factor energy efficiency. The research results show that first, the productivity effect, scale effect and resource allocation effect of intelligent manufacturing can significantly improve the energy efficiency of the total factor
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Huabai, Bu, and Bu Jiaqi. "Research on the Improvement of Village Governance Efficiency Based on Blockchain Technology." Journal of Agricultural Science 12, no. 9 (2020): 192. http://dx.doi.org/10.5539/jas.v12n9p192.

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It is known that China is in the critical “triple overlap” period of the history of social transformation, the fourth industrial revolution, and new globalization. As a disruptive technology, blockchain has solved the “trust construction” and causing a revolution in the social governance model. The article uses blockchain technology as a means to solve the problems of the existing rural governance structure and governance capability system, analyzes the mechanism and implementation bottleneck of blockchain technology, and proposes countermeasures and pol
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SHEN, Fengiman, Takanobu INADA, Kensaku YAMAMOTO, and Yuji IWANAGA. "Combustion Mechanism and Improvement of Combustion Efficiency of Single Pulverized Coal." Tetsu-to-Hagane 80, no. 1 (1994): 7–12. http://dx.doi.org/10.2355/tetsutohagane1955.80.1_7.

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Michaelowa, Axel, and D. Hayashi. "Methodological challenges for energy efficiency improvement under the clean development mechanism." IOP Conference Series: Earth and Environmental Science 6, no. 20 (2009): 202011. http://dx.doi.org/10.1088/1755-1307/6/20/202011.

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Skorokhvatov, Oleg, Alexey Kovalchuk, Dmytry Maksymchuk, Oleksandr Bosyi, and Alexey Malishkin. "IMPROVEMENT OF TENSIONING MECHANISM TRACKS FOR TRACTOR ENGINE." Collection of scientific works of Odesa Military Academy, no. 16 (February 11, 2022): 43–47. http://dx.doi.org/10.37129/2313-7509.2021.16.43-47.

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The article poses a scientific problem, which is solved by using electromechanical mechanisms with an automatic control scheme and tracking the tension of the caterpillar within the required limits. The analysis of scientific papers revealed a number of disadvantages that are inherent in tracked propellers with existing track tensioning mechanisms: a significant drop in the efficiency at high speeds of a track with a rubber-metal hinge due to high stretching coefficients, which leads to a decrease in the coefficient of adhesion of the track; significant deterioration in maneuverability due to
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Tang, Ning, Yumei Xia, Yijie Zhan, et al. "Improvement of Chloroplast Transformation Using CRISPR/Cas9." Journal of Biobased Materials and Bioenergy 14, no. 3 (2020): 401–7. http://dx.doi.org/10.1166/jbmb.2020.1970.

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Chloroplasts are organelles that contain genetic materials (DNA) in higher plant cells. The special genetic characteristics of chloroplasts mean that plasmid transformation has important research value, so it has become an important research direction second to nuclear transformation. Although the techniques of chloroplast genome modification have been successfully applied in tobacco and extended to other high plants, there are still many limitations. Exogenous genes are integrated into the chloroplast genome through homologous recombination. Therefore, the low efficiency of homologous recombi
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Wang, Zhan Jie, Wen Chen, and Hai Long Wang. "Improvement on Real-Time Capability of Heartbeat Mechanism." Advanced Materials Research 108-111 (May 2010): 938–42. http://dx.doi.org/10.4028/www.scientific.net/amr.108-111.938.

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Heartbeat mechanism is the key technology of fault detection in cluster system, and the performance of heartbeat detection restricts the efficiency of high-availability clusters. Heartbeat packets will be delayed or even lost in the case of system or network overload, leading to the lack of real-time detection, the increased misjudgment rate, and reducing the reliability of the system. Aiming at the issue, this paper presented a new real-time heartbeat mechanism. By controlling the time of sending heartbeat packets, real-time Ethernet TTEP avoids the network delay and collision, which will spe
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Tesis sobre el tema "Efficiency improvement mechanism"

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Zhao, Yunhai. "Interface engineering and absorber with composition gradient for high-efficiency Kesterite solar cells." Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS048.

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Dans cette thèse, les propriétés de transport des porteurs de charge, le processus de croissance des grains, le mécanisme de perte de VOC et les possibilités d'amélioration du rendement des cellules solaires de CZTSSe ont été étudiés. L'importante perte de VOC et le faible facteur de remplissage des cellules solaires CZTSSe sont les principaux défis pour l'amélioration du rendement. Cela est principalement dû à la mauvaise qualité de l'interface arrière, à l'alignement non optimisé des bandes et à la présence des phases secondaires dans l'absorbeur. Trois approaches ont été utilisées dans ce t
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Мищишин, Ольга Львівна. "Формування та розвиток транскордонних кластерів". Diss., Національний університет "Львівська політехніка", 2020. https://ena.lpnu.ua/handle/ntb/56112.

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Tang, U. Fai. "Efficiency improvement of micro-mobility with intra-domain multicast-based mechanisms." Thesis, University of Macau, 2006. http://umaclib3.umac.mo/record=b1636993.

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Chen, Tseng-Chih, and 陳增智. "An Improvement on the Efficiency of Network Authorization Mechanism." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/c45n9y.

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碩士<br>世新大學<br>資訊管理學研究所(含碩專班)<br>96<br>A single sign-on and role-based authorization control can bring great benefits about integrating identity authentication and access control mechanisms. However, when we explore the system control functions, there are fewer simple and effective mechanisms controlling more detailed functions and authority. According to this truth, my study integrates single sign-on mechanism, RBAC access control mechanisms, file and directory of resource management mechanisms, access pre-loaded mechanisms and auditing mechanisms in order to construct a comprehensive informat
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Chou, Bo-Yin, and 周伯胤. "Fast Mode Decision Mechanism for Coding Efficiency Improvement in H.264/AVC and SVC." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/ssm4ez.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>97<br>In order to speedup the encoding process of H.264/AVC and Scalable Video Coding (SVC), Temporal and Spatial Correlation-based Merging and Splitting (TSCMS) fast mode decision algorithm and Coded Block Pattern (CBP)-based fast mode decision algorithm are proposed in this thesis. TSCMS and CBP-based fast mode decision algorithms are applied to H.264/AVC and SVC, respectively. In TSCMS, Temporal Correlation (TC) is used to predict the Motion Vectors (MVs) of 8×8 blocks in each macroblock. In addition, the merging and splitting procedure is adopted to predict the
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Jie, Su-Lin, and 蘇林捷. "Power Efficiency Improvement of a Wavelength-preserved All Optical 2R Regeneration System in an SOA-based Optical Cross-gain Compression Mechanism." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/23931863856919016561.

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Carstens, Herman. "Improvements to longitudinal clean development mechanism sampling designs for lighting retrofit projects." Diss., 2014. http://hdl.handle.net/2263/42443.

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An improved model for reducing the cost of long-term monitoring in Clean Development Mechanism (CDM) lighting retrofit projects is proposed. Cost-effective longitudinal sampling designs use the minimum number of meters required to report yearly savings at the 90% confidence and 10% relative precision level for duration of the project (up to 10 years) as stipulated by the CDM. Improvements to the existing model include a new non-linear Compact Fluorescent Lamp population decay model based on the results of the Polish Efficient Lighting Project, and a cumulative sampling function modified
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Libros sobre el tema "Efficiency improvement mechanism"

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Cevelev, Aleksandr. Strategic development of railway transport logistics. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1194747.

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The monograph is devoted to the methodology of material and technical support of railway transport. According to the types of activities, the nature of the material and technical resources used, technologies, means and management systems, Russian railways belong to the category of high-tech industries that must have high quality and technical level, reliability and technological efficiency in operation. For this reason, the logistics system itself, both in structure and in the algorithm of the functions performed as a whole, needs a serious improvement in the quality of its work. The economic
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Das, Upasak, Amartya Paul, and Mohit Sharma. Can information campaigns reduce last mile payment delays in public works programme? Evidence from a field experiment in India. 21st ed. UNU-WIDER, 2021. http://dx.doi.org/10.35188/unu-wider/2021/955-6.

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Does information dissemination among beneficiaries of welfare programmes mitigate their implementation failures? We present experimental evidence in the context of a rural public works programme in India, where we assess the impact of an intervention that involves dissemination of publicly available micro-level data on last mile delays in payment and programme uptake, along with a set of intermediate outcomes. The findings point to a substantial reduction in last mile payment delays along with improvements in awareness of basic provisions of the programme and process mechanisms while indicatin
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Scott-Smith, Tom. On an Empty Stomach. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501748653.001.0001.

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This book examines the practical techniques humanitarians have used to manage and measure starvation, from Victorian “scientific” soup kitchens to space-age, high-protein foods. Tracing the evolution of these techniques since the start of the nineteenth century, the book argues that humanitarianism is not a simple story of progress and improvement, but rather is profoundly shaped by sociopolitical conditions. Aid is often presented as an apolitical and technical project, but the way humanitarians conceive and tackle human needs has always been deeply influenced by culture, politics, and societ
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Naji, Abdennasser. Total Quality Management in Education: Conditions for systemic improvement of the quality of learning outcomes. amazon, 2020. http://dx.doi.org/10.37870/979-8694752237.

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This book deals with the issue of the quality of education systems by examining the key factors that influence learning outcomes, and by highlighting in a systemic way the determinants of this quality. I have shown the importance of considering the quality of learning outcomes as the ultimate and unavoidable objective of any education system that aims to be efficient and effective. I reviewed the theoretical bases that concern the politics, approaches and mechanisms of quality management applied to education. I developed a model called Elmandjra, which tries to explain the influence links that
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Mazer, Jeffrey, and Mitchell M. Levy. Policies, bundles, and protocols in critical care. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0017.

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Recently, the medicine community has been driven to think about patient safety in new ways, and with this new found interest in patient safety, large health care systems and individual institutions have been forced to develop mechanisms to track and measure performance. There is ample evidence that physicians and systems can do better. The tools of this new craft include checklists, protocols, guidelines, and bundles. These tools help to decrease variability in care and enhance the translation of evidence-based medicine to bedside care. Ongoing measurement of both performance and clinical outc
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Wojewodzic, Tomasz. Procesy dywestycji i dezagraryzacji w rolnictwie o rozdrobnionej strukturze agrarnej. Publishing House of the University of Agriculture in Krakow, 2017. http://dx.doi.org/10.15576/978-83-66602-31-1.

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The turn of the 20th and 21st centuries has been a very dynamic period of change in Poland and around the world; also a period of change in thinking about the economy and agriculture. The present work is a study of the decline, divestments and development of agriculture in the areas of fragmented farming structure. The reflections presented herein, upon the processes of the remodelling of agrarian structures, of divestments in farming, and disagrarisation, are mostly anchored in the achievements of the theory of spatial economy (land management), and the microeconomic theories of choice, inclu
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Capítulos de libros sobre el tema "Efficiency improvement mechanism"

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Shi, Weichao, Mina Tadros, Damien Gomez, et al. "Development of Energy Efficient Solutions for Hydrogen Powered Vessels: RESHIP Project." In Lecture Notes in Mobility. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-89444-2_61.

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Abstract RESHIP project funded under the Horizon Europe programme aims to redefine energy efficiency for using hydrogen for ships with disruptive technologies in Energy Saving Devices (ESDs) and onboard hydrogen system for a seamless transition towards zero-emission. The project focuses on two key technologies, the Tubercle Assisted Propulsors (TAPs) and the liquid inorganic hydrogen carrier, HydroSil. TAPs technology is based on a novel and generic biomimetic passive flow control mechanism inspired by humpback whales, which have small bumps on their pectoral fins known as leading-edge (LE) tu
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Grbo, Zinka, and Sevleta Halilović. "Some Peculiarities of the Legal Framework on Commercial Arbitration in Bosnia and Herzegovina." In European Union and its Neighbours in a Globalized World. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-76345-8_4.

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Abstract In Bosnia and Herzegovina, arbitration emerges as a promising mechanism for resolving disputes, especially those involving foreign parties. Nevertheless, an overview of the legal framework shows several obstacles that impede this from becoming a reality. Upon examination of the legal framework, a patchwork of laws governing arbitration, dispersed across B&amp;H’s territorial units, is revealed. However, even fragmented, this framework provides a solid ground for arbitration proceedings to be conducted. This is shown by analyzing certain aspects of arbitration, including arbitrability,
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Quilloy, Fergie Ann, Benedick Labaco, Carlos Casal, and Shalabh Dixit. "Crop Establishment in Direct-Seeded Rice: Traits, Physiology, and Genetics." In Rice Improvement. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66530-2_6.

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AbstractThe changing climate and water availability strongly affect the current state of agricultural production. While the global temperature rises, the occurrence of extreme climatic conditions becomes erratic. This current scenario has driven the development of rice varieties and cultivation practices that require less water and favor mechanization. Although puddled transplanted rice has been more widely used in the past, direct seeding has been gaining popularity in recent years, especially due to its water- and labor-saving features. This technique allows full crop establishment from seed
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Sasirekha, G. V. K., and K. M. Gangaraju. "Efficient BER Improvement Mechanism for Wireless E1/E1 ATM Links." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9532-0_4.

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Nikolakis, Nikolaos, Paolo Catti, and Kosmas Alexopoulos. "An Explainable Active Learning Approach for Enhanced Defect Detection in Manufacturing." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-86489-6_5.

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Abstract Artificial Intelligence (AI) can significantly support manufacturing companies in their pursuit of operational excellence, by maintaining efficiency while minimizing defects. However, the complexity of AI solutions often creates a barrier to their practical application. Transparency and user-friendliness should be prioritized to ensure that the insights generated by AI can be effectively applied in real-time decision-making. To bridge this gap and foster a collaborative environment where AI and human expertise collectively drive operational excellence, this paper suggests an AI approa
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Plaček, Michal, František Ochrana, Milan Jan Půček, and Juraj Nemec. "Conclusion and Public Policy Recommendation: Efficiency Improvement Through Managerial Approach and Accountability Mechanisms." In Fiscal Decentralization Reforms. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46758-6_11.

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de Schutter, Kristof, Olivier Christiaens, Clauvis Nji Tizi Taning, and Guy Smagghe. "Boosting dsRNA delivery in plant and insect cells with peptide- and polymer-based carriers: case-based current status and future perspectives." In RNAi for plant improvement and protection. CABI, 2021. http://dx.doi.org/10.1079/9781789248890.0011.

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Abstract Since the discovery of this naturally occurring endogenous regulatory and defence mechanism, RNA interference (RNAi) has been exploited as a powerful tool for functional genomic research. In addition, it has evolved as a promising candidate for a sustainable, specific and ecofriendly strategy for pest management and plant improvement. A key element in this technology is the efficient delivery of dsRNAs into the pest or plant tissues. While several examples using transgenic plants expressing the dsRNAs have proved the potential of this technology, nontransgenic approaches are investiga
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de Schutter, Kristof, Olivier Christiaens, Clauvis Nji Tizi Taning, and Guy Smagghe. "Boosting dsRNA delivery in plant and insect cells with peptide- and polymer-based carriers: case-based current status and future perspectives." In RNAi for plant improvement and protection. CABI, 2021. http://dx.doi.org/10.1079/9781789248890.0102.

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Abstract Since the discovery of this naturally occurring endogenous regulatory and defence mechanism, RNA interference (RNAi) has been exploited as a powerful tool for functional genomic research. In addition, it has evolved as a promising candidate for a sustainable, specific and ecofriendly strategy for pest management and plant improvement. A key element in this technology is the efficient delivery of dsRNAs into the pest or plant tissues. While several examples using transgenic plants expressing the dsRNAs have proved the potential of this technology, nontransgenic approaches are investiga
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Hayes, R. C., M. T. Abberton, and J. A. Lovatt. "Mechanisms Utilised Within the IBERS Diploid Lolium perenne L. Forage Grass Breeding Programmes to Improve Rumen Nitrogen Use Efficiency." In Breeding strategies for sustainable forage and turf grass improvement. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4555-1_5.

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Wang, Bibo, Yu Chen, Hongliang Gu, Jian Yang, and Tan Zhao. "Two Energy-Efficient, Timesaving Improvement Mechanisms of Network Reprogramming in Wireless Sensor Network." In Embedded Software and Systems. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11599555_45.

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Actas de conferencias sobre el tema "Efficiency improvement mechanism"

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Yang, Wenying, Fansong Meng, and Daoyi Wu. "Parameter Sensitivity Analysis and Efficiency Improvement of Electromagnetic Repulsion Mechanism Based on Orthogonal Experiment Design." In 2024 IEEE International Magnetic Conference (INTERMAG). IEEE, 2024. https://doi.org/10.1109/intermag56625.2024.10830471.

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Bloor, Maximilian, Tom Savage, Calvin Tsay, Ehecatl Antonio Del Rio Chanona, and Max Mowbray. "A Subset Selection Strategy for Gaussian Process Q-Learning of Process Optimization and Control." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.126649.

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This work addresses a practical challenge in batch process optimization: the need for sample efficient learning methods due to the high cost and time-intensive nature of running physical batch processes. While reinforcement learning (RL) offers a promising framework for optimizing batch processes, traditional approaches require numerous experimental runs to converge to optimal policies. A novel sample efficient RL method that leverages Gaussian Processes (GPs) to accelerate learning from limited batch data is proposed. However, the direct application of GPs becomes computationally intractable
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Marepally, Koushik, Ron Berlin, and James Baeder. "Exploration of Vortex-Thrust: Da Vinci Aerial Screw Physics, Aerodynamics and Performance." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-63.

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This study explores the aerodynamics of aerial screws, drawing inspiration from Leonardo da Vinci's visionary 16th-century designs. Using high-fidelity Computational Fluid Dynamics (CFD) analysis, the research identifies a vortex-based thrust generation mechanism, centered on the formation of a "da Vinci vortex"—a coherent helical structure critical to performance. Systematic investigations into the effects of pitch and taper variations reveal nuanced strategies for optimizing thrust efficiency. Bilinear modifications to these parameters achieve up to a 13% improvement in figure of merit over
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Yeremenko, Oleksandr, Stanislav Khalin, Vasyl Khmelovskyi, Tatyana Zubok, and Larysa Piskunova. "Improvement of biomass granulator matrix mechanism." In 24th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering and Information Technologies, 2025. https://doi.org/10.22616/erdev.2025.24.tf113.

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Matrix-type granulators have a pressing mechanism consisting of a perforated ring die and rollers that press biomass into the die channels (dies). At high pressures of 40-90 MPa, molecular adhesion (dry extrusion process) occurs between biomass particles in the channels, and intense friction of the material against the walls occurs, which increases the temperature of the pellets to 80-105°C. During operation of the mechanism, technological violations of the “roller-biomass-matrix” system occur in the form of jamming (non-passage) of the material through the matrix channels. This reduces the pr
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Yang, Wenying, Fansong Meng, and Daoyi Wu. "Parametric Sensitivity Analysis and Efficiency Improvement of Electromagnetic Repulsion Mechanism Based on Orthogonal Experiment Design." In 2024 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). IEEE, 2024. http://dx.doi.org/10.1109/intermagshortpapers61879.2024.10577071.

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Muramatsu, N., H. Ando, M. Takaki, H. Matsumoto, and Y. Kubouchi. "Gripping Efficiency of Gripping Mechanism Using Buckling Phenomenon of Long Column." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13631.

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In the development of miniature opening and closing mechanism, piezoelectric element has been used as its actuator. This mechanism, however, tends to become larger and complicated as it needs a mechanism for displacement enlargement because of the infinitesimal output displacement. Therefore, an attempt applying buckling phenomenon of long column to the opening and closing mechanism of finger has been made. An elastic member with a long strip shape was bent in the shape of M character, both ends fixed and reciprocating translational drive was imparted to the V-shaped common portion at the cent
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Chunbao, Liu, Chai Bosen, Liu Changsuo, and Ma Wenxing. "Research on mechanism of drag reduction and efficiency improvement of hydrodynamic torque converter with bionic non-smooth surfaces." In 2015 International Conference on Fluid Power and Mechatronics (FPM). IEEE, 2015. http://dx.doi.org/10.1109/fpm.2015.7337333.

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Komp, Dominik, Sumeet Kumar, Amine Abdelmoula, Manfred Hajek, and Juergen Rauleder. "Investigation of Active Rotor Design and Control for Performance Improvement." In Vertical Flight Society 75th Annual Forum & Technology Display. The Vertical Flight Society, 2019. http://dx.doi.org/10.4050/f-0075-2019-14530.

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A computational investigation was conducted to identify the optimal performance of a rotor with an active camber morphing mechanism using up to twice-per-revolution (2P) control input. Using rotor comprehensive analysis with an elastic blade model and a free vortex wake for the aerodynamics model to ensure computational efficiency, a parametric study of design and control variables was carried out to identify their influence on rotor performance. The same computational framework was used to obtain optimal control inputs that led to best performance using 2P individual blade control (IBC) via p
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Saxena, Samveg, Iván Dario Bedoya, Nihar Shah, and Amol Phadke. "Understanding Loss Mechanisms and Identifying Areas of Improvement for HCCI Engines Using Detailed Exergy Analysis." In ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92052.

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This paper presents a detailed exergy analysis of homogeneous charge compression ignition (HCCI) engines, including a crank-angle resolved breakdown of mixture exergy and exergy destruction. Exergy analysis is applied to a multi-zone HCCI simulation including detailed chemical kinetics. The HCCI simulation is validated against engine experiments for ethanol-fueled operation. The exergy analysis quantifies the relative importance of different loss mechanisms within HCCI engines over a range of engine operating conditions. Specifically, four loss mechanisms are studied for their relative impact
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Hah, Chunill. "Stall Margin Improvement in a Transonic Compressor With a Casing Treatment: Flow Mechanism." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-83363.

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Abstract A compressor casing treatment with circumferential casing grooves (CCGs) is studied in detail. The primary objective of the current paper is to unearth the main driving fluid mechanism that changes the stall margin in a transonic compressor with CCGs. Large Eddy Simulation (LES) is applied to calculate the transonic compressor flow fields with and without CCGs. Detailed comparisons between measured and computed flow fields show that changes in flow structures due to CCGs are very well represented with LES. The measured data show that flow blockage generation in the tip gap area is red
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Informes sobre el tema "Efficiency improvement mechanism"

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Yahav, Shlomo, John McMurtry, and Isaac Plavnik. Thermotolerance Acquisition in Broiler Chickens by Temperature Conditioning Early in Life. United States Department of Agriculture, 1998. http://dx.doi.org/10.32747/1998.7580676.bard.

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The research on thermotolerance acquisition in broiler chickens by temperature conditioning early in life was focused on the following objectives: a. To determine the optimal timing and temperature for inducing the thermotolerance, conditioning processes and to define its duration during the first week of life in the broiler chick. b. To investigate the response of skeletal muscle tissue and the gastrointestinal tract to thermal conditioning. This objective was added during the research, to understand the mechanisms related to compensatory growth. c. To evaluate the effect of early thermo cond
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Zilberman, David, and Eithan Hochman. Price Evaluation and Allocation of Water under Alternative Water Rights Systems. United States Department of Agriculture, 1992. http://dx.doi.org/10.32747/1992.7561062.bard.

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This project developed conceptual and empirical frameworks to analyze the water management politics as water scarcity increases. The analyses showed that increased scarcity will tend to encourage a transition from systems in which water is allocated administratively to water trading. However, transaction costs and political economy considerations placed barriers on the introduction of markets. The recent droughts - both in Israel and California were shown to cause an increase in water use efficiency by adoption of modern technologies and improvement of water conveyance systems. The drought led
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Ferdaus, Md Meftahul, Mahdi Abdelguerfi, Kendall Niles, Ken Pathak, and Joe Tom. Widened attention-enhanced atrous convolutional network for efficient embedded vision applications under resource constraints. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49459.

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Onboard image analysis enables real-time autonomous capabilities for unmanned platforms including aerial, ground, and aquatic drones. Performing classification on embedded systems, rather than transmitting data, allows rapid perception and decision-making critical for time-sensitive applications such as search and rescue, hazardous environment exploration, and military operations. To fully capitalize on these systems’ potential, specialized deep learning solutions are needed that balance accuracy and computational efficiency for time-sensitive inference. This article introduces the widened att
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Defoort, Willson, and Olsen. L51849 Performance Evaluation of Exhaust Catalysts During the Initial Aging on Large Industrial Engines. Pipeline Research Council International, Inc. (PRCI), 2001. http://dx.doi.org/10.55274/r0011213.

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An investigation of catalyst performance during the initial aging process, providing insight into the deactivation rate of the catalyst and assisting in predicting the operational lifetime of the catalyst was preformed. The information gained through the test program provides a mechanism to assist in developing new technologies geared at reducing engine emission while providing improvements in efficiency, reliability, and operability for the aging industrial reciprocating engine fleet. Two natural gas lean burn engines, a 2-stroke, large bore slow speed and a 4-stroke medium bore medium speed,
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Yahav, Shlomo, John Brake, and Noam Meiri. Development of Strategic Pre-Natal Cycling Thermal Treatments to Improve Livability and Productivity of Heavy Broilers. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7593395.bard.

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The necessity to improve broiler thermotolerance and live performance led to the following hypothesis: Appropriate comprehensive incubation treatments that include significant temperature management changes will promote angiogenesis and will improve acquisition of thermotolerance and carcass quality of heavy broilers through epigenetic adaptation. It was based on the following questions: 1. Can TM during embryogenesis of broilers induce a longer-lasting thermoregulatory memory (up to marketing age of 10 wk) that will improve acquisition of thermotolerance as well as increased breast meat yield
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Tao, Yang, Amos Mizrach, Victor Alchanatis, Nachshon Shamir, and Tom Porter. Automated imaging broiler chicksexing for gender-specific and efficient production. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7594391.bard.

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Extending the previous two years of research results (Mizarch, et al, 2012, Tao, 2011, 2012), the third year’s efforts in both Maryland and Israel were directed towards the engineering of the system. The activities included the robust chick handling and its conveyor system development, optical system improvement, online dynamic motion imaging of chicks, multi-image sequence optimal feather extraction and detection, and pattern recognition. Mechanical System Engineering The third model of the mechanical chick handling system with high-speed imaging system was built as shown in Fig. 1. This syst
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Traore, Raïssatou Joëlle, and Giulia Mascagni. Tax Harmonisation Policy within the West African Economic and Monetary Union: Analysis and Prospects. Institute of Development Studies, 2025. https://doi.org/10.19088/ictd.2025.015.

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The West African Economic and Monetary Union (WAEMU) has been engaged in an ambitious project to harmonise its members’ domestic tax systems since 1994. After 30 years, this study aims to highlight the successes and challenges associated with WAEMU’s tax harmonisation policy, and to examine its application in practice. Although WAEMU has succeeded in establishing a solid normative framework and has achieved its primary harmonisation goals, the success of a tax policy is measured by its actual implementation. In this respect, the results are mixed. It is therefore essential that WAEMU intensifi
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Dudareva, Natalia, Alexander Vainstein, Eran Pichersky, and David Weiss. Integrating biochemical and genomic approaches to elucidate C6-C2 volatile production: improvement of floral scent and fruit aroma. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7696514.bard.

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The specific objectives of approved proposal include to: 1. Elucidate the C6-C2 biochemical pathways leading to the biosynthesis of phenylacetaldehyde, phenylethyl alcohol and phenylethyl acetate in floral tissues of ornamentally important plants, pefunia and roses. 2. Isolate and characterrze genes responsible for the production of these C6-C2 compounds and those involved in the regulation of the pathway using genomic and transcriptomic tools. 3. Determine whether altering the expression of key genes of this pathway can result in changing the aroma characteristics of flowers. Aldehydes are in
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Glazer, Itamar, Alice Churchill, Galina Gindin, and Michael Samish. Genomic and Organismal Studies to Elucidate the Mechanisms of Infectivity of Entomopathogenic Fungi to Ticks. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7593382.bard.

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The overall goal of this research was to elucidate the factors affecting early development of Metarhizium spp. (previously named M. anisopliae) on ticks or tick cuticle extracts and the molecular basis of these early infection processes. The original objectives were: 1. Characterize the pre-penetration events (adhesion, germination and appressorium formation) of spores of M. anisopliae strains with high or low virulence during tick infection. 2. Create GFP-expressing strains of M. anisopliae tick pathogens having high and low virulence to compare their progress of infection by microscopy. 3. U
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Weinberg, Zwi G., Richard E. Muck, Nathan Gollop, Gilad Ashbell, Paul J. Weimer, and Limin Kung, Jr. effect of lactic acid bacteria silage inoculants on the ruminal ecosystem, fiber digestibility and animal performance. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7587222.bard.

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The overall objective of the whole research was to elucidate the mechanisms by which LAB silage inoculants enhance ruminant performance. The results generated will permit the development of better silage inoculants that maximize both silage preservation and animal performance. For this one-year BARD feasibility study, the objectives were to: 1. determine whether lactic acid bacteria (LAB) used in inoculants for silage can survive in rumen fluid (RF) 2.select the inoculants that survived best, and 3. test whether LAB silage inoculants produce bacteriocins-like substances. The most promising str
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