Results 31 to 40 of about 2,142,116 (352)

Time interleaved optical sampling for ultra-high speed A/D conversion [PDF]

, 1998
A scheme is proposed for increasing the sampling rate of analogue-to-digital conversion by more than an order of magnitude by combining state-of-the-art A/D converters with photonic technology.
Koumans, R. G. M. P., Yariv, A.
core   +1 more source

Deep Deterministic Policy Gradient for High-Speed Train Trajectory Optimization

IEEE transactions on intelligent transportation systems (Print), 2021
This paper proposes a novel train trajectory optimization approach for high-speed railways. We restrict our attention to single train operation scenarios with different scheduled/rescheduled running times aiming at generating optimal train recommended ...
Lingbin Ning, Min Zhou, Z. Hou, R. Goverde, Fei-Yue Wang, Hai-rong Dong   +5 more
semanticscholar   +1 more source

A Finite-Element Model of Seated Human Body Representing the Distribution of Static Pressures and Dynamic Forces over a Rigid Seat During Vertical Vibration for Sitting Postures with Various Thigh Contact

Applied Sciences
Overall sitting comfort is related to both static pressure distribution and dynamic human–seat interaction during vibration. This study proposes a simplified finite-element model of the seated human body that could potentially be used to assess overall ...
Weitan Yin, Shaoqing Liu, Jianying Liang, Chi Liu, Yi Qiu, Xu Zheng, Linfeng Sun, Shan Huang   +7 more
doaj   +1 more source

Wind Tunnel Testing on Crosswind Aerodynamic Forces Acting on Railway Vehicles

Journal of Fluid Science and Technology, 2010
This study is devoted to measure the aerodynamic forces acting on two railway trains, one of which is a high-speed train at 300km/h maximum operation speed, and the other is a conventional train at the operating speed 100km/h. The three-dimensional train
Hyeok-bin KWON, Seong-won NAM, Won-hee YOU   +2 more
doaj   +1 more source

A Novel Method for Calculating the Radiated Disturbance from Pantograph Arcing in High-speed Railway [PDF]

, 2017
Pantograph arcing is a key electromagnetic disturbance source to affect train control system in high-speed railway. Since the characteristics of pantograph arcing is related to train speed, it is necessary to investigate effective numerical modeling and ...
Andy Marvin, Eva Karadimou, Hefei Cao, Lan Ma, Rob Armstrong, Yinghong Wen   +5 more
core   +1 more source

Multifunctional strut-plate composite lattice metamaterial for integrated acoustic, energy, and vibration management

Virtual and Physical Prototyping
In the pursuit of engineering solutions capable of managing persistent hazards such as noise, vibration, and structural impacts, materials that combine sound absorption, vibration damping, and deformation resistance are crucial.
Xi Wang, Shiyi Wang, Minghao Huang, Ruixian Qin, Bingzhi Chen   +4 more
doaj   +1 more source

Hydrolysis behavior and mechanism of AlON powders

Materials & Design
AlON-C (∼25 μm) powders were prepared using the carbothermal reduction and nitridation (CRN) method. The powders were subsequently processed through milling to obtain AlON-M (∼1.6 μm) and AlON-F (∼456 nm).
Jianxin Xu, Dongming Li, Jian Song, Delei Du, Xu Zhang   +4 more
doaj   +1 more source

Investigation of turbulence effect on the free space optical link for ground-to-train communications [PDF]

, 2011
There is a growing demand for high mobility and ultrafast internet/data services which drives the motivation for free space optical (FSO) communications for high speed trains.
Ghassemlooy, Zabih, Le Minh, Hoa, Livingstone, Bryan, Paudel, Rupak, Rajbhandari, Sujan   +4 more
core  

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine, Béliard Sophie, Renard Cécile, Caussy Cyrielle, Hamidou Zeinab, Romano David, Gacem Mélanie, Petit Arnaud, Saultier Paul, Borentain Patrick, Michel Gérard   +10 more
wiley   +1 more source

Tribo-Dynamic Behavior of Double-Row Cylindrical Roller Bearings Under Raceway Defects and Cage Fracture

Lubricants
High-quality data samples are essential for the early detection of bearing failures and the analysis of bearing behavior. The accurate simulation of bearing fault conditions can provide valuable insights into understanding failure mechanisms.
Longqing Fan, Xingwang Zhao, Wei Hao, Chaoyang Miao, Xiuyuan Hu, Congcong Fang   +5 more
doaj   +1 more source