Results 91 to 100 of about 204,808 (307)

Control Strategy of Subway Bidirectional Converter for Suppressing Grid Background Harmonics

Chengshi guidao jiaotong yanjiu
[Objective] The nonlinear power equipment in subway traction power supply systems causes distortions in grid voltage during operation, leading to large grid background harmonics, which will affect the grid-connected current quality of subway ...
ZHOU Xiangjie, LIU Xiaogui, QIAN Na, LI Songlin, ZHANG Dachuan   +4 more
doaj   +1 more source

High speed/high capacity railway and regional development - evaluation of effects on spatial accessibility [PDF]

In the last decade the theme of high speed infrastructure in Italy has been deeply debated, with different political and technical opinions, which have expanded the time for projects and constructions. As a consequence of this long debate, a redefinition
Badiani, Barbara, Tiboni, Michela, Tira, Maurizio   +2 more
core  

High speed short range optical wireless ground-to-train communications [PDF]

, 2010
There is a huge demand for seamless high-speed communications in fast moving trains. People want broadband services while on board as in their home or in the workplace.
Ghassemlooy, Zabih, Le Minh, Hoa, Paudel, Rupak, Rajbhandari, Sujan   +3 more
core  

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Deep Feature Fusion with Integration of Residual Connection and Attention Model for Classification of VHR Remote Sensing Images

Remote Sensing, 2019
The classification of very-high-resolution (VHR) remote sensing images is essential in many applications. However, high intraclass and low interclass variations in these kinds of images pose serious challenges.
Jicheng Wang, Li Shen, Wenfan Qiao, Yanshuai Dai, Zhilin Li   +4 more
doaj   +1 more source

Research related to vibrations from high speed railway traffic

, 2008
We discuss here recent results from several research programmes related to dynamic aspects and vibrations induced by high speed railway traffic, developed at the computational mechanics group, within the “Escuela de Ingenieros de Caminos” of the ...
Gabaldón Castillo, Felipe, Goicolea Ruigómez, José María   +1 more
core  

Large, rugged and remote: The challenge of wolf–livestock coexistence on federal lands in the American West

People and Nature, EarlyView.
Abstract The expansion of grey wolves (Canis lupus) across the western United States, including on public lands used for extensive livestock grazing, requires tools and techniques for reducing wolf–livestock conflict and supporting coexistence. We examined approaches used on forested lands managed by the U.S.
Robert M. Anderson, Susan Charnley, Jeff Vance Martin, Kathleen Epstein   +3 more
wiley   +1 more source

mcGANs: Topology Optimization Using Multi-Stage CGAN

IEEE Access
The traditional methods of solving topology optimization depends on finite element method (FEM). However, the iterative calculation of FEM increases the time cost of topology optimization significantly.
Jiandong Zhu, Ting Ding, Fuhao Cui, Zhi Wang   +3 more
doaj   +1 more source

High speed train communications systems using free space optics [PDF]

, 2010
In this work, we propose a broad-band free space optical (FSO) wireless communications system for high-speed trains. The system consists of optical transceivers positioned outside the train and along the railway track.
Ghassemlooy, Zabih, Iaz, M., Le Minh, Hoa, Paudel, Rupak, Rajbhandari, Sujan   +4 more
core  

High-speed railway and regional economic growth: a case of Beijing-Shanghai high-speed railway [PDF]

HOLISTICA – Journal of Business and Public Administration, 2019
Abstract The development course of high-speed railway indicates that it not only changes the composition of traffic modes when competing with other modes of transportation, but also plays an important role in spurring the economic growth of the cities along the line and the evolution of regional spatial structure.
openaire   +1 more source