Results 41 to 50 of about 21,633 (146)
Design of a Hydroelectronic Solar‐Tracking System for Solar Panels
Energy Science &Engineering, Volume 14, Issue 5, Page 2600-2625, May 2026.A prototype of a passive solar‐tracking system utilizing buoyant force based on water level was developed, and its MATLAB/Simulink model was implemented. This study is expected to encourage researchers to design solar‐tracking mechanisms using metals with different thermal expansion coefficients, air, oil, and other fluids. ABSTRACT This study presents
Ufuk Süğürtin, Türker Fedai Çavuş
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Impact of Wheel Wear on Dynamics Performance of CR200J EMU Trailer and Control Cars
Chengshi guidao jiaotong yanjiuObjective In response to stability alarm faults occurring in CR200J EMU trailer and control cars in certain sections, it is necessary to analyze the factors affecting the dynamics performance to analyze the causes and address the issues.
XU Li, YANG Chen, GU Zhonghua
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Medical Physics, Volume 53, Issue 5, May 2026.Abstract Background Clinical dosimetry for kV X‐ray radiotherapy beams requires calibrated ionization chambers. When the clinical field size differs from the field size used for chamber calibration, in‐air measurements result in a different magnitude of scatter from the detector stem or body housing affecting the sensitive volume.
Fayz Kadeer +2 more
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Grinding Management of Rail Profile Based on Abnormal Hunting of High-speed Train
机车电传动, 2020 To study the influence of the polished depth of rail profile at the gauge angle on the low-frequency vibration of high-speed train, a group of rail profiles were obtained by interpolating between the standard CN60 profile and the measured rail profile ...
Jingwei CHEN +3 more
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Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone
Journal of Field Robotics, Volume 43, Issue 3, Page 1646-1660, May 2026.ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown +8 more
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Study on Dynamic Problem of Speed-increasing EMUs on Lanzhou-Xinjiang Passenger Dedicated Line
机车电传动, 2021 The Lanzhou-Xinjiang passenger dedicated Line is located in the northwest region of China with the natural environment of high temperature, severe cold and windy sand, which puts forward higher requirements for the safe and reliable operation of high ...
Guodong LI +3 more
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Feral Territories: The Suburbanization of Nature in Eastern Bangkok
Antipode, Volume 58, Issue 3, May 2026.ABSTRACT Between the 1960s and 1980s, American and international financial and technical assistance spurred men with means to bring together concrete, asphalt, timber, and steel to construct unplanned, poorly serviced (because they were unplanned), and expensive subdivisions at the outskirts of what was then central Bangkok.
Samson Lim
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RUST AND REPARATIONS: Memory, Labor, and the Politics of Repair in Senegal's Railway Workshop
Cultural Anthropology, Volume 41, Issue 2, Page 450-483, May 2026.ABSTRACT This essay examines the multivalences of repair in Senegalese railway workshops, where workers maintain and modify aging wagons from suburban and former transnational rail services, originally imported from France, and later from India and Pakistan. I trace three interrelated dimensions of repair.
CHARLINE KOPF
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Test Study on Carbody Abnormal Vibration of High-speed EMUs
机车电传动, 2014 Carbody abnormal vibration analysis of a high-speed EMUs was researched, mainly containing the wheel tread measurements,carbody vibration on-line test, turn around running and vibration compared before and after repairing profile. The results showed that
WU Hui-chao, XU Yun, SHI Jun-jie
doaj
TAXON, Volume 75, Issue 2, April 2026.Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann +4 more
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