Results 81 to 90 of about 1,062,732 (288)

WorMa: An Undulatory Robot With Center of Mass Regulation via Internal Fluid Redistribution for Amphibious Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
WorMa is an amphibious undulatory robot that uses Center of Mass redistribution as the sole terrain adaptation mechanism. This mechanism is based on internal fluid mass redistribution through a pump‐driven latex balloon system that creates three profiles: head‐biased, balanced, and tail‐biased.
Daniil Filimonov, Nana Obayashi
wiley   +1 more source

Accounting power supply schemes for traction substations in the calculation of short circuits in the AC traction network

open access: yesVestnik of the Railway Research Institute, 2019
When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of traction substations from a high-voltage power line of a longitudinal power supply, the external ...
Yu. I. Zharkov   +2 more
openaire   +3 more sources

Case Calculation and Analysis of Insufficient Traction Force in Elevator

open access: yesJournal of Physics: Conference Series, 2023
Abstract For the traction driven elevator, the satisfaction of traction conditions is the basic guarantee for the normal operation of the elevator. If the traction force is insufficient, there will be skid, slip and other phenomena, which not only cannot meet the design requirements of the elevator manufacturers, but also easy to cause ...
openaire   +1 more source

Traction Transmission Gearbox Mechanical Properties Numerical Calculation and Strength Analysis

open access: yes, 2011
Traction devices are power transmission components of railbound vehicle. This article discusses the gearbox mechanical properties numerical calculation and strength analysis. It established calculation model based on field test parameters.
Xue Qing Mei   +5 more
core   +1 more source

Enhancing Amphibious Flipper‐Based Locomotion Through Terrain‐Dependent Bayesian Optimization of Central Pattern Generator Control

open access: yesAdvanced Robotics Research, EarlyView.
A sea turtle‐inspired amphibious robot uses simulation‐guided optimization to adapt its flipper coordination to different environments. Sensitivity analysis and multiobjective Bayesian optimization identify terrain‐dependent controllers that are validated on hardware.
Nnamdi C. Chikere, Yasemin Ozkan‐Aydin
wiley   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

open access: yesAdvanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong   +24 more
wiley   +1 more source

Research and Development of Energy-storage Light-railVehicle Electric Traction System

open access: yes机车电传动, 2013
Parameters and performance requirement of energy-storage electric traction light-rail vehicle were introduced. T/B characteristic of electric traction system, simulation and calculation of vehicle operation capability, main circuit, control system and ...
CHEN Xin-jian   +4 more
doaj  

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

open access: yesAdvanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu   +8 more
wiley   +1 more source

[Texas Traction Company Minutes: 1916-1927]

open access: yes, 1916
Minutes documenting the regular and special meetings of stockholders and of the board of directors for the Texas Traction Company in Dallas, Texas. It includes documentation regarding attendance and proceedings, along with supplemental documentation ...
Southern Traction Company
core  

Development of Zero-Spin Planetary Traction Drive Transmission: Part 1 — Design and Principles of Performance Calculation

open access: yes, 2001
A novel design of planetary tapered roller traction drive was described. The design eliminated the spin motion induced sliding, offering high mechanical efficiency and improved wear performance.
Xiaolan Ai
core   +1 more source

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