Results 71 to 80 of about 2,529 (218)
Artificial Organs, Volume 49, Issue 9, Page 1380-1386, September 2025.This in vitro comparative study demonstrated that the HeartMate 3 pump has a superior overall hemocompatibility profile to the HeartMate 2 pump, underscoring the advantages of the maglev centrifugal pump design compared to the axial pump design. ABSTRACT Background Left ventricular assist devices (LVADs) have been utilized to maintain the circulatory ...
John Vandenberge +9 more
wiley +1 more source
The Impact of DNA as a Chemical Admixture for Cementitious Materials
Advanced Materials Technologies, Volume 10, Issue 15, August 7, 2025.DNA molecules are added to cement pastes and their effects on rheology and hydration time are studied. DNA's chemical structure is composed of polysaccharide and phosphate groups, which are active functional groups in different commercial chemical admixtures: Viscosity modifiers and superplasticizers.
Alexander Mezhov +4 more
wiley +1 more source
Design and Research of Dynamic Detection System for Medium-Low Speed Maglev Contact Rail
Chengshi guidao jiaotong yanjiu［Objective］ Contact rail is an important component in maglev rail transit system engineering, providing safe and reliable electrical energy for medium-low speed maglev trains.
TU Jun, ZHOU Wenwu, SU Kuan, YUAN Wei
doaj +1 more source
EMS control system design for a maglev vehicle—A critical system [PDF]
Automatica, 1993 For the effective operation of a magnetically levitated (maglev) vehicle using electro-magnetic suspension, it is necessary that the airgap between the guideway and the levitating magnets is maintained. Such systems, where the output is required to remain strictly within bounds, are known as critical systems.
openaire +2 more sources
Engineering Reports, Volume 7, Issue 7, July 2025.The research proposes a variable‐speed fixed‐displacement pump control strategy combined with a fuzzy PID algorithm. A co‐simulation model is developed, key parameters are set, and comparative energy consumption analyses are conducted between the variable‐speed fixed‐displacement pump and the fixed‐speed variable‐displacement pump through simulation ...
Qiaohong Ming, Yangyang Wang
wiley +1 more source
Publications on maglev technologies [PDF]
, 1991 Magnetically levitated passenger-transportation vehicles, using attractive and repulsive magnetic forces, are currently in the development or prototype-revenue stages in Japan and Germany.
He, J. L. +3 more
core +1 more source
Discussion on Key Technology of High-speed Maglev Railway Bridge Structures in Low Vacuum Tube
机车电传动, 2020 As a new type of transportation system, the vacuum tube high-speed traffic has become a research hotspot and a key development direction in the world. The vacuum tube pressure, blockage ratio, aerodynamic drag, maglev system, vehicle body, etc.
Daliang ZHAO, Shubin LIU, Bing WANG
doaj
MathematicsThe vehicle–guideway coupled self-excited vibration of maglev systems is a common control instability problem in maglev traffic while the train is suspended above flexible girders, and it seriously affects the suspension stability of maglev vehicles.
Pengxiang Zhu +5 more
doaj +1 more source
Vibration characteristics of the Transrapid TR08 Maglev System [PDF]
RR294/R2130As part of the Federal Railroad Administration's (FRA) Magnetic Levitation Transportation Technology Deployment Program, the technical report has been prepared to charaterize the vibration associated with the operation of the Transrapid ...
Roof, C. J. +12 more
core
AHS Maglev System Architecture
, 1999 In the period between 1993-1998 a vision was presented of an Automated Highway System developed under a contract naming Virginia Tech one of the three ITS Research Centers of Excellence in the United States by the Federal Highway Administration.
Siridhara, Siradol
core +1 more source