Results 21 to 30 of about 48,580 (193)

Urban heat vulnerability: A dynamic assessment using multi-source data in coastal metropolis of Southeast China

Frontiers in Public Health, 2022
Extreme heat caused by global climate change has become a serious threat to the sustainable development of urban areas. Scientific assessment of the impacts of extreme heat on urban areas and in-depth knowledge of the cross-scale mechanisms of heat ...
Chaowei Wu, Chaowei Wu, Wei Shui, Zhigang Huang, Zhigang Huang, Chunhui Wang, Yuehui Wu, Yinpan Wu, Chengzhi Xue, Yunhui Huang, Yiyi Zhang, Dongyang Zheng   +11 more
doaj   +1 more source

Spatial assessment of urban heatwave vulnerability of coupling adaptability based on BPNN model: a case study of Xiamen City, China

Geomatics, Natural Hazards & Risk, 2021
The continuous advancement of urbanization and the acceleration of global climate warming have severely aggravated the heatwave vulnerability of the urban complex human–land system.
Haifeng Yang
doaj   +1 more source

Frictional Duality Observed during Nanoparticle Sliding [PDF]

, 2008
One of the most fundamental questions in tribology concerns the area dependence of friction at the nanoscale. Here, experiments are presented where the frictional resistance of nanoparticles is measured by pushing them with the tip of an atomic force ...
Dietzel, Dirk, Fuchs, Harald, Monninghoff, Tristan, Ritter, Claudia, Schirmeisen, Andre, Schwarz, Udo D.   +5 more
core   +1 more source

Charge vibration behaviour in polyimide under the pulse voltage with different rise and fall times

High Voltage, 2022
High‐voltage electronic equipment is widely used in power systems, which normally operate under the pulse voltage condition. However, compared to DC or AC stress, the electrical insulation suffers a more severe ageing process under a pulse voltage with ...
Tao Zhang, Dongxin He, Junyu Wei, Hongshun Liu, Qingquan Li, Gilbert Teyssedre   +5 more
doaj   +1 more source

An Advanced Partial Discharge Recognition Strategy of Power Cable

Journal of Electrical and Computer Engineering, 2015
Detection and localization of partial discharge are very important in condition monitoring of power cables, so it is necessary to build an accurate recognizer to recognize the discharge types.
Xiaotian Bi, Ang Ren, Simeng Li, Mingming Han, Qingquan Li   +4 more
doaj   +1 more source

Review of Digital Construction of UHV Projects Based on Building Information Modeling Technology [PDF]

Dianli jianshe
As major national infrastructure projects， UHV projects are key to ensuring power grid security， promoting energy consumption， and optimizing resource allocation.
QI Lizhong, LIU Ding, ZHANG Zhuoqun, XIE Rongzhen, RONG Jingguo, ZHANG Su, YUAN Bo, SUN Yi
doaj   +1 more source

A Nexafs Study of Nitric Oxide Layers Adsorbed from a nitrite Solution onto a Pt(111) Surface [PDF]

, 2008
NO molecules adsorbed on a Pt(111) surface from dipping in an acidic nitrite solution are studied by near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), low energy electron diffraction (LEED) and ...
Alonso, C., Benfatto, M., Casero, E., Cerda', J. I., Felici, R., Giglia, A., Hatada, K., Hayakawa, K., Mahne, N., Martin-Gago, J. A., Nannarone, S., Pedio, M.   +11 more
core   +2 more sources

AFM of metallic nano-particles and nano-structures in heavily irradiated NaCl [PDF]

, 2003
AFM investigations are reported for heavily, electron irradiated NaCl crystals in ultra high vacuum (UHV) in the non-contact mode with an UHV AFM/STM Omicron system.
A. Tolstikhina, Cherkasov F. G., D.I. Vainshtein, H.W. Den Hartog, R. Gaynutdinov, S.J. Hak, Shtyrkov E. I.   +6 more
core   +3 more sources

UHV piezoelectric translator [PDF]

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
Abstract A UHV compatible piezoelectric translator has been developed to correct for angular misalignments in the crystals of a UHV X-ray monochromator. The unit is small, bakeable to 150°C, and use only ceramic materials for insulation. We report on the construction details, vacuum compatibility, mechanical properties, and uses of the device.
Oversluizen, T., Watson, G.
openaire   +1 more source

Holonomies of gauge fields in twistor space 5: amplitudes of gluons and massive scalars

, 2012
Scattering amplitudes of gluons coupled with a pair of massive scalars, so-called massive scalar amplitudes, provide the simplest yet physically useful examples of massive amplitudes.
Abe, Abe, Abe, Abe, Badger, Badger, Badger, Bern, Bern, Boels, Boels, Boels, Boels, Britto, Britto, Buchta, Cachazo, Cirio, Cohen, Craig, Dittmaier, Dixon, Dixon, Elvang, Ettle, Ferrario, Forde, Gorsky, Huang, Kiermaier, Kohno, Mansfield, Mason, Nair, Rodrigo, Schwinn, Yasuhiro Abe   +36 more
core   +1 more source