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Phase transition regulation and caloric effect

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 463-477 doi: 10.1007/s11708-023-0860-1

Abstract: Solid state refrigeration based on caloric effect is regarded as a potential candidate for replacingworsening the performance in other aspects, like attaining a large caloric effect with narrowing the transitionperformance of materials, consisting of enlarging caloric effects, reducing hysteresis losses, adjusting transitiontemperatures, and widening transition temperature spans, which indicate that further progress can be

Keywords： phase transition regulation     caloric effect     solid state refrigeration    

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Maximizing power saving with state transition overhead for multiple mobile subscriber stations in WiMAX Article

Bo LI,Sung-kwon PARK

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 10,   Pages 1085-1094 doi: 10.1631/FITEE.1500314

Abstract: In the algorithms designed for multiple MSSs, the sleep state, which is set for activation of state transitionThe PSC setting for real-time connections in multiple MSSs with consideration of the state transitionThe problem is non-deterministic polynomial time hard (NP-hard), and a suboptimal algorithm for the problemSimulation results demonstrate that the energy saving of the proposed algorithm is higher than that ofstate-of-the-art algorithms and approaches the optimum limit.

Keywords： Power saving class     State transition overhead     IEEE 802.16e/m     Quality of service    

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State versus private sector provision of water services in Armenia

Naira HARUTYUNYAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 620-630 doi: 10.1007/s11783-012-0425-8

Abstract: Despite increasing advocacy and adaptation of public-private model of water governance worldwide since the 1990s, today only 5% of the world’s population is served by water utilities with private involvement. The present article examines the experience of the water sector in Armenia with private sector participation. The study describes the process of the introduction of public-private partnerships in the water sector and focuses on analyzing the impact of privatization on water utility performance. The analysis employs the partial indicator method for evaluating the impacts in relation to operational, finance, and environmental performance, done by drawing on the database for the five water companies in Armenia. The empirical evidence shows that private participation in general led to improved overall performance. In particular, private involvement resulted in increased operational efficiency in terms of labor productivity, water metering, continuity of service, and revenue collection efficiency. There were mixed improvements in the operating cost coverage ratio. As for environmental performance, there were gains in the reduction of residential water consumption, accompanied, however, by an increase in non-revenue water.

Keywords： water governance     water privatization     public-private partnership     operational efficiency     Armenia     transition    

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Integrated energy in Germany–A critical look at the development and state of integrated energies in Germany

Saman AMANPOUR, Daniel HUCK, Mark KUPRAT, Harald SCHWARZ

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 493-500 doi: 10.1007/s11708-018-0570-2

Abstract: In the face of global warming and a scarcity of resources, future energy systems are urged to undergo a major and radical transformation. The recognition of the need to embrace renewable energy technologies and to move toward decarbonization has led to significant changes in the German energy generation, consumption and infrastructure. Ambitious German national plans to decrease carbon dioxide emissions on one side, and the unpredictable and volatile nature of renewable energy sources on the other side have elevated the importance of integrated energies in recent years. The deployment of integrated technologies as a solution to interlink various infrastructures creates opportunities for increasing the reliability of energy systems, minimizing environmental impacts and maximizing the share of renewable resources. This paper discusses the role of integrated energy systems in supporting of sustainable solutions for future energy transitions. Moreover, the reinforcement of this movement with the help of different technologies will be discussed and the development of integrated energy systems in Germany will be reviewed.

Keywords： integrated energy     renewable energies     energy transition     power-to-gas     power-to-heat     power-to-mobility     energy    

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A Data and Knowledge Collaboration Strategy for Decision-Making on the Amount of Aluminum Fluoride Addition Based on Augmented Fuzzy Cognitive Maps Article

Weichao Yue、 Weihua Gui、 Xiaofang Chen、 Zhaohui Zeng、 Yongfang Xie

Engineering 2019, Volume 5, Issue 6,   Pages 1060-1076 doi: 10.1016/j.eng.2019.10.005

Abstract: The state transition algorithm (STA) is introduced to detect weight matrices that lead the FCMs to desiredthan when using the differential Hebbian learning (DHL), particle swarm optimization (PSO), or genetic algorithm

Keywords： AlF 3 addition     Fuzzy cognitive maps     Learning algorithms     State transition algorithm     Fuzzy    

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Research on the railway construction process quality model based on the state-space method

Lu Shoudong,Zhou Guohua,Chen Haifeng and Zhao Guotang

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 64-69

Abstract:

In the ISO9000“input- output”process model，the concept of process quality is difficult to get the correct interpretation. From the point of view of the process's“white box” theory，this paper puts forward the scientific meaning of the concept of process quality and the process quality model by taking the basic operating unit of6M1E in the railway construction project for example. The basic operating unit system consists of the technological natural process，operation process and management process；the process quality of the basic operating unit system depends on the interrelation and interaction among those three sub- processes，and also subject to the impact of the external disturbance input factors. Finally，the cast- in- situ prestressed concrete continuous box girder construction process is utilized to elaborate the specific application of this theory in the quality management of the railway construction project.

Keywords： railway construction project     “white box”model     state transition equation     process quality    

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Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 47-56 doi: 10.1007/s11708-011-0159-5

Abstract: system poses a great challenge to power engineering researchers on how to best monitor and estimate the state

Keywords： artificial intelligence     power distribution control     state estimation    

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Octane compositions in sulfuric acid catalyzed isobutane/butene alkylation products: experimental and quantum chemistry studies

Lina Liang, Youzhi Liu, Weizhou Jiao, Qiaoling Zhang, Chao Zhang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1229-1242 doi: 10.1007/s11705-020-2030-x

Abstract: Based on a classic carbenium ion mechanism, the carbocation transition states in concentrated sulfuricHopefully, the carbocation transition state models developed in this work will be useful for understanding

Keywords： sulfuric acid catalyzed alkylation     carbocation reaction     transition state     octane compositions    

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Epithelial-to-mesenchymal transition in cancer: complexity and opportunities

Yun Zhang, Robert A. Weinberg

Frontiers of Medicine 2018, Volume 12, Issue 4,   Pages 361-373 doi: 10.1007/s11684-018-0656-6

Abstract:

The cell-biological program termed the epithelial-to-mesenchymal transition (EMT) plays an important

Keywords： epithelial-to-mesenchymal transition     cancer     metastasis     cancer stem cell    

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Energy transition management towards a low-carbon world

Frontiers of Engineering Management 2022, Volume 9, Issue 3,   Pages 499-503 doi: 10.1007/s42524-022-0201-9

Keywords： energy transition     low-carbon technology     system modeling     transition path     emission reduction    

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Smart oilfield development and transition of petroleum-based cities

He LIU, Xinhua MA

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 299-301 doi: 10.1007/s42524-019-0024-5

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Energy transition toward carbon-neutrality in China: Pathways, implications and uncertainties

Frontiers of Engineering Management 2023, Volume 10, Issue 2,   Pages 358-372 doi: 10.1007/s42524-022-0202-8

Abstract: Achieving carbon neutrality in China before 2060 requires a radical energy transition.To identify the possible transition pathways of China’s energy system, this study presents a scenario-basedThe assessment of the relationship between the energy transition and energy return on investment (EROI) reveals that energy transition may decrease the EROI, which would trigger increased energy investmentThe results also indicate the need for backup capacities to enhance the energy security during the transition

Keywords： carbon neutrality     energy transition     uncertainty     EROI     LEAP    

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Policy entry points for facilitating a transition towards a low-carbon electricity future

Frontiers of Engineering Management   Pages 462-472 doi: 10.1007/s42524-022-0214-4

Abstract: This study extends the ambit of the debate on electricity transition by specifically identifying possibletransformative and enduring changes can be made in the electricity and socio–economic systems to facilitate the transitionGuided by the “essence” of the multi-level perspective — a prominent framework for the study of energy transitionphase-out on coal mining regions in terms of economic development and jobs; and 4) facilitating a shift in transition

Keywords： electricity transition     multi-level perspective     policy entry points    

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Distribution system state estimation: an overview of recent developments Review Article

Gang WANG, Georgios B. GIANNAKIS, Jie CHEN, Jian SUN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 4-17 doi: 10.1631/FITEE.1800590

Abstract: manipulation of smart meter readings, all highlight the need for accurate, fast, and robust power system stateIn this study, we provide a contemporary overview of PSSE and describe the current state of the art inFinally, distribution system state estimation is discussed along with its current challenges.

Keywords： State estimation     Cramér-Rao bound     Feasible point pursuit     Semidefinite relaxation     Proximal linear algorithm    

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Multi-objective particle swarm cooperative optimization algorithm for state parameters

Ding Lei,Wu Min,She Jinhua,Duan Ping

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 101-107

Abstract: the lead-zinc sintering process, an efficient multi-objective particle swarm cooperative optimization algorithmSecondly, an improved multi-objective particle swarm cooperative optimization algorithm is presentedFinally, the proposed multi-objective optimization algorithm is applied to optimize the synthetic permeabilityThe simulation results show that the proposed multi-objective optimization algorithm effectively solves

Keywords： synthetic permeability     burn-through point     multi-objective particle swarm cooperative optimization algorithm    

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Title Author Date Type Operation

Phase transition regulation and caloric effect

Journal Article

Maximizing power saving with state transition overhead for multiple mobile subscriber stations in WiMAX

Bo LI,Sung-kwon PARK

Journal Article

State versus private sector provision of water services in Armenia

Naira HARUTYUNYAN

Journal Article

Integrated energy in Germany–A critical look at the development and state of integrated energies in Germany

Saman AMANPOUR, Daniel HUCK, Mark KUPRAT, Harald SCHWARZ

Journal Article

A Data and Knowledge Collaboration Strategy for Decision-Making on the Amount of Aluminum Fluoride Addition Based on Augmented Fuzzy Cognitive Maps

Weichao Yue、 Weihua Gui、 Xiaofang Chen、 Zhaohui Zeng、 Yongfang Xie

Journal Article

Research on the railway construction process quality model based on the state-space method

Lu Shoudong,Zhou Guohua,Chen Haifeng and Zhao Guotang

Journal Article

Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Journal Article

Octane compositions in sulfuric acid catalyzed isobutane/butene alkylation products: experimental and quantum chemistry studies

Lina Liang, Youzhi Liu, Weizhou Jiao, Qiaoling Zhang, Chao Zhang

Journal Article

Epithelial-to-mesenchymal transition in cancer: complexity and opportunities

Yun Zhang, Robert A. Weinberg

Journal Article

Energy transition management towards a low-carbon world

Journal Article

Smart oilfield development and transition of petroleum-based cities

He LIU, Xinhua MA

Journal Article

Energy transition toward carbon-neutrality in China: Pathways, implications and uncertainties

Journal Article

Policy entry points for facilitating a transition towards a low-carbon electricity future

Journal Article

Distribution system state estimation: an overview of recent developments

Gang WANG, Georgios B. GIANNAKIS, Jie CHEN, Jian SUN

Journal Article

Multi-objective particle swarm cooperative optimization algorithm for state parameters

Ding Lei,Wu Min,She Jinhua,Duan Ping

Journal Article