Results 111 to 120 of about 18,219,725 (307)

Features of construction of systems of railway automatics and telemechanics at the organization of high-speed traffic in the Republic of Uzbekistan

, 2016
The most effective way to intensify the work of railway transport, improve the use of its main complex and costly technical means of transportation process management automation is using complex systems of interval control of train traffic and ensure its
Aripov, Nazirjon, Ametova, Elnara, Aliyev, Ravshan, Baratov, Dilshod   +3 more
core   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

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

Where Projects Fail: Geospatial Evidence of Delays and Cancellations in Chinese Development Finance

Journal of International Development, EarlyView.
ABSTRACT Delays and cancellations can severely undermine the effectiveness of development finance. Yet, little systematic evidence exists on where and why these disruptions occur within the rapidly expanding portfolio of Chinese‐financed development projects in Africa.
Leoni Mendler‐Krakau
wiley   +1 more source

An Elasto–Plastic Hydro–Mechanical Model for Analyzing the Swelling Behavior of Heterogeneous Clay–Sulfate Rocks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Swelling of clay‐sulfate rocks is a concern in geotechnical engineering that can damage infrastructure. In the historic town of Staufen in southwest Germany, geothermal drilling into a swellable anhydrite‐bearing clay formation resulted in water inflow and subsequent swelling, triggering ground heave and damage to more than 250 houses.
Reza Mahmoudi Kouhi, Reza Taherdangkoo, Thomas Nagel, Faramarz Doulati Ardejani, Christoph Butscher   +4 more
wiley   +1 more source

Shaking table test on damage mechanism of bedrock and overburden layer slope based on the time–frequency analysis method

Scientific Reports
To systematically analyze the damage caused by bedrock and overburden layer slope under seismic action, a set of large-scale shaking table test was designed and completed.
Changwei Yang, Guangpeng Chen, Mao Yue, Xianqing Xu, Ke Su, Zhuqing Li   +5 more
doaj   +1 more source

Economic Development Impacts of High Speed Rail [PDF]

This paper reviews the state of high-speed rail (HSR) planning in the United States c. 2010. The plans generally call for a set of barely inter-connected hub-and-spoke networks. The evidence from US transit systems shows that lines have two major impacts.
David Levinson
core  

An urban evolved invasive plant tolerates experimental climate change

PLANTS, PEOPLE, PLANET, EarlyView.
Urbanization may drive invasive species evolution, resulting in greater invasion risks as global conditions change. We compared urban populations of the invasive Erigeron annuus in Zagreb, Croatia, to surrounding rural populations and found that urban‐evolved populations were more tolerant of experimental warming and drought than rural populations ...
S. Luke Flory, Drew Hiatt, Jesse Borden, Damjana Levačić, Sven Jelaska   +4 more
wiley   +1 more source

Embodied brand companions: fostering passenger loyalty and emotional connection in high-speed rail membership programs via social VR avatars

Frontiers in Virtual Reality
IntroductionHigh-speed rail loyalty programs commonly rely on transactional rewards, such as points, discounts, priority services, and tier-based benefits.
Xia Hua, Qin Zhou, Congcong Kong, Junping Ding, Zhouyang Gu   +4 more
doaj   +1 more source

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, Paudel, Rupak, Rajbhandari, Sujan, Le Minh, Hoa   +3 more
core