Results 61 to 70 of about 563,907 (301)

Solar driven lasers for power satellite applications [PDF]

, 1980
The technological feasibility of using multimagawatt lasers for space power transmission is discussed. Candidate lasers include electric discharge lasers, direct optically pumped lasers, and free electron ...
Cassady, P., Klosterman, E., Taussio, R.
core   +1 more source

Increasing thermoelectric performance using coherent transport

, 2011
We show that coherent electron transport through zero-dimensional systems can be used to tailor the shape of the system's transmission function. This quantum-engineering approach can be used to enhance the performance of quantum dots or molecules in ...
A. Wacker, G. Karlström, H. J. Goldsmid, H. Linke, O. Karlström   +4 more
core   +1 more source

Modelling and simulation of a two speed electric vehicle [PDF]

, 2012
Electric vehicles offer an alternative to hybrid and conventional vehicles through the use of electcric drive without fossil fuel consumption. This shifts green house gas production from the vehicle to power stations, but if power is supplied from ...
Abdul Rahman, S, Lin, Y, Walker, PD, Zhan, W, Zhang, N, Zhu, B   +5 more
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Models for the modern power grid

, 2014
This article reviews different kinds of models for the electric power grid that can be used to understand the modern power system, the smart grid. From the physical network to abstract energy markets, we identify in the literature different aspects that ...
Baptista, Murilo S., Cardieri, Paulo, Latva-aho, Matti, Nardelli, Pedro H. J., Pomalaza-Raez, Carlos, Rubido, Nicolas, Wang, Chengwei   +6 more
core   +1 more source

Novel application of magnetoresistive sensors for high-voltage transmission-line monitoring [PDF]

, 2011
High-voltage transmission lines are responsible for transmission of electric power. Their sag and electric current are important parameters for transmission-line monitoring.
Hou, Y, Huang, Q, Lee, WK, Lui, KS, Pong, PWT, Sun, X, Wong, KKY   +6 more
core   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Study on the dynamic mechanical properties of winding‐block axial structure considering short circuit strain rate effect

High Voltage
Transformers may suffer multiple short‐circuit impacts during long‐term operation, and axial instability is one of the typical types of serious accidents caused by short‐circuit faults.
Xinyu Wang, Ping Wang, Jianghai Geng, Zikang Zhang, Fangcheng Lü, Shuguo Gao   +5 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Influence characteristics of water penetration on fibre‐reinforced polymer/rigid polyurethane foam interface of the composite cross‐arm considering natural ageing

High Voltage
Fibre‐reinforced polymer (FRP)/rigid polyurethane foam (RPUF) interface is susceptible to moisture intrusion in addition to natural ageing during operation.
Jun Xie, Zhe Zhou, Ziqian Liu, Haonan Tian, Sigang Zhang, Qing Xie   +5 more
doaj   +1 more source