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End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 322-334 doi: 10.1007/s11708-014-0329-3

Abstract: In this paper, the end-use efficiencies of the different energy carriers and the overall energy efficiencyThe result shows that approximately 65% of the residence use wood and biomass for domestic cooking andIn addition, this paper has suggested alternatives in the end-use application and has demonstrated the

Keywords: end-use     energy     exergy efficiency     residential sector     Nigeria    

Comparing End-Use Potential for Industrial Food-Waste Sources Review

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

Engineering 2018, Volume 4, Issue 3,   Pages 371-380 doi: 10.1016/j.eng.2018.05.010

Abstract:

Approximately one quarter of the global edible food supply is wasted. The drivers of food waste can occur at any level between production, harvest, distribution, processing, and the consumer. While the drivers vary globally, the industrialized regions of North America, Europe, and Asia share similar situations; in each of these regions the largest loss of food waste occurs with the consumer, at approximately 51% of total waste generated. As a consequence, handling waste falls on municipal solid waste operations. In the United States, food waste constitutes 15% of the solid waste stream by weight, contributes 3.4 × 107t of carbon dioxide (CO2) equivalent emissions, and costs 1.9 billion USD in disposal fees. The levels of carbon, nutrients, and moisture in food waste make bioprocessing into higher value products an attractive method for mitigation. Opportunities include extraction of nutraceuticals and bioactive compounds, or conversion to a variety of volatile acids—including lactic, acetic, and propionic acids—that can be recovered and sold at a profit. The conversion of waste into volatile acids can be paired with bioenergy production, including hydrogen or biogas. This present review compares the potential for upgrading industrial food waste to either specialty products or methane. Higher value uses of industrial food waste could alleviate approximately 1.9 × 108 t of CO2equivalent emissions. As an example, potato peel could be upgraded to lactic acid via fermentation to recover 5600 million USD per year, or could be converted to methane via anaerobic digestion, resulting in a revenue of 900 million USD per year. The potential value to be recovered is significant, and food-waste valorization will help to close the loop for various food industries.

Keywords: Industrial food waste     Food-waste valorization     Value-added recovery    

Analysis of Sydney’s recycled water schemes

Zhuo CHEN, Huu Hao NGO, Wenshan GUO, Xiaochang WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 608-615 doi: 10.1007/s11783-012-0468-x

Abstract: study aims to make a comprehensive analysis of recycled water schemes in Sydney for a wide range of endthe effluent quality compared with specified guideline values and public attitudes toward different endthe analytical results, the good prospects of further expansion and exploration of current and new end

Keywords: recycled water schemes     end use     water quality     public attitudes     integrated water planning and management    

Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 211-227 doi: 10.1007/s11708-022-0847-3

Abstract: studies that realize topology identification and decision-making optimization in sequence, the proposed end-to-endIn particular, the generator in SCAN is trained by the core modules in sequence so as to form an end-to-end

Keywords: end-to-end learning     microgrids     voltage profile improvement     generative adversarial network    

Efficient decoding self-attention for end-to-end speech synthesis Research Article

Wei ZHAO, Li XU

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1127-1138 doi: 10.1631/FITEE.2100501

Abstract: has been innovatively applied to text-to-speech (TTS) because of its parallel structure and superior strength in modeling sequential data. However, when used in with an autoregressive decoding scheme, its inference speed becomes relatively low due to the quadratic complexity in sequence length. This problem becomes particularly severe on devices without graphics processing units (GPUs). To alleviate the dilemma, we propose an (EDSA) module as an alternative. Combined with a dynamic programming decoding procedure, TTS model inference can be effectively accelerated to have a linear computation complexity. We conduct studies on Mandarin and English datasets and find that our proposed model with EDSA can achieve 720% and 50% higher inference speed on the central processing unit (CPU) and GPU respectively, with almost the same performance. Thus, this method may make the deployment of such models easier when there are limited GPU resources. In addition, our model may perform better than the baseline Transformer TTS on out-of-domain utterances.

Keywords: Efficient decoding     End-to-end     Self-attention     Speech synthesis    

Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 301-311 doi: 10.15302/J-FASE-2018207

Abstract: antimicrobials are used, and reviewing different technical and socioeconomic factors influencing antimicrobial useat farm level, this study discusses the main knowledge gaps in antimicrobial use in food animal productionThe review reveals that antimicrobial use in food animals exhibit strong regional and species differences, and there are still large information gaps concerning the current state of antimicrobial use.and potential technological alternatives or alternative systems all have an impact on antimicrobial use

Keywords: antimicrobial use     drivers for antimicrobial use     food animal production    

Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0994-7

Abstract: It becomes an urgent issue to develop and adopt an effective End-of-Life (EoL) strategy for EEE in order

Keywords: End-of-Life     Waste electrical and electronic equipment     Life cycle assessment     Reuse    

Development and application of high-end aerospace MEMS

Weizheng YUAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 567-573 doi: 10.1007/s11465-017-0424-3

Abstract:

This paper introduces the design and manufacturing technology of aerospace microelectromechanical systems (MEMS) characterized by high performance, multi-variety, and small batch. Moreover, several kinds of special MEMS devices with high precision, high reliability, and environmental adaptability, as well as their typical applications in the fields of aeronautics and aerospace, are presented.

Keywords: MEMS     design and manufacture technology     aeronautic and aerospace    

End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 732-743 doi: 10.1631/FITEE.1400414

Abstract: End-to-end delay measurement has been an essential element in the deployment of real-time services inWe propose a novel theoretical framework to analyze the end-to-end delay distributions of networked systemsWe use a signal flow graph to model the delay distribution of a networked system and prove that the end-to-endBy analyzing the time responses of the transfer function, we obtain the end-to-end delay distributionMoreover, we use the framework to study the network protocol performance.

Keywords: Networked system     End-to-end     Delay distribution    

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some important

Keywords: self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Strategic Study of CAE 2017, Volume 19, Issue 3,   Pages 136-141 doi: 10.15302/J-SSCAE-2017.03.019

Abstract:

The continual development of high-end manufacturing equipment is essentialfor the development of the high-end equipment manufacturing industry.during the 13th Five-Year Plan, these authors analyze the new demands and future priorities of high-endenterprises in China, this paper puts forward suggestions to promote the sound development of the high-end

Keywords: high-end equipment manufacturing industry     high-end manufacturing equipment     machine tool     basic manufacturing    

Engineering management for high-end equipment intelligent manufacturing

Shanlin YANG, Jianmin WANG, Leyuan SHI, Yuejin TAN, Fei QIAO

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 420-450 doi: 10.15302/J-FEM-2018050

Abstract:

The high-end equipment intelligent manufacturing (HEIM) industry is of strategic importance to national

Keywords: high-end equipment     intelligent manufacturing     engineering management     information technology    

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1515-1529 doi: 10.1007/s11709-022-0887-0

Abstract: Based on the domain reduction idea and artificial boundary substructure method, this paper proposes an FK-FEM hybrid approach by integrating the advantages of FK and FEM (i.e., FK can efficiently generate high-frequency three translational motion, while FEM has rich elements types and constitutive models). An advantage of this approach is that it realizes the entire process simulation from point dislocation source to underground structure. Compared with the plane wave field input method, the FK-FEM hybrid approach can reflect the spatial variability of seismic motion and the influence of source and propagation path. This approach can provide an effective solution for seismic analysis of underground structures under scenario of earthquake in regions where strong earthquakes may occur but are not recorded, especially when active faults, crustal, and soil parameters are available. Taking Daikai subway station as an example, the seismic response of the underground structure is simulated after verifying the correctness of the approach and the effects of crustal velocity structure and source parameters on the seismic response of Daikai station are discussed. In this example, the influence of velocity structure on the maximum interlayer displacement angle of underground structure is 96.5% and the change of source parameters can lead to the change of structural failure direction.

Keywords: source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

Moving policy and regulation forward for single-use plastic alternatives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-021-1423-5

Abstract: Single-use plastics are often used once or cannot be reused for extended periods.The waste generated by single-use plastics threatens ecosystem health by entering the environment andThe innovation of sustainable and environmentally friendly single-use plastic alternative materials andthe public are promising technologies and management approaches that can solve the problem of single-useThe development of single-use plastic alternative products can be promoted fundamentally only by improving

Keywords: Single-use plastic alternatives     Policy     Regulation     Sustainable development    

Optimization of cold-end system of thermal power plants based on entropy generation minimization

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 956-972 doi: 10.1007/s11708-021-0785-5

Abstract: Cold-end systems are heat sinks of thermal power cycles, which have an essential effect on the overallHowever, little attention has been paid to the optimization of the cold-end system with multi-pressureThe results show that the entropy generation rate of the multi-pressure cold-end system is less thanthat of the single-pressure cold-end system when the total condenser area is constant.quadruple-pressure cold-end systems are 575 and 580 k$/a, respectively.

Keywords: cold-end system     entropy generation minimization     optimization     economic analysis     genetic algorithm    

Title Author Date Type Operation

End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Journal Article

Comparing End-Use Potential for Industrial Food-Waste Sources

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

Journal Article

Analysis of Sydney’s recycled water schemes

Zhuo CHEN, Huu Hao NGO, Wenshan GUO, Xiaochang WANG

Journal Article

Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Journal Article

Efficient decoding self-attention for end-to-end speech synthesis

Wei ZHAO, Li XU

Journal Article

Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

Journal Article

Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Journal Article

Development and application of high-end aerospace MEMS

Weizheng YUAN

Journal Article

End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Journal Article

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Journal Article

Engineering management for high-end equipment intelligent manufacturing

Shanlin YANG, Jianmin WANG, Leyuan SHI, Yuejin TAN, Fei QIAO

Journal Article

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Journal Article

Moving policy and regulation forward for single-use plastic alternatives

Journal Article

Optimization of cold-end system of thermal power plants based on entropy generation minimization

Journal Article