Results 31 to 40 of about 256,906 (176)

Experimental and Numerical Investigation on Progressive Collapse Resistance of Post-tensioned Precast Concrete Beam-Column Sub-assemblages [PDF]

open access: yes, 2020
In this paper, four 1/2 scaled precast concrete (PC) beam-column sub-assemblages with high performance connection were tested under push-down loading procedure to study the load resisting mechanism of PC frames subjected to different column removal ...
Feng, D-C.   +4 more
core   +1 more source

Horizontal and Vertical Coordinated Control of Three-Axis Heavy Vehicles

open access: yesMachines
In order to coordinate the transverse motion control and longitudinal motion control in the tracking control process and ensure the yaw stability and roll stability in the tracking process, a transverse and longitudinal coordinated control method of ...
Lanchun Zhang   +4 more
doaj   +1 more source

Simulation and Modelling of Safety of Roadways in Reverse Horizontal Curves (RHCs): With Focus on Lateral Acceleration

open access: yesAdvances in Civil Engineering, 2022
As a type of horizontal curve, the reverse horizontal curves (RHCs) are one of the most critical types of road locations where many accidents occur due to slippage resulting from the centrifugal force of the vehicles.
Maziyar Khanjari   +2 more
doaj   +1 more source

Simulation Analysis of Magnetic Characteristic of Double Permanent Magnet Wheel Linear Drive Device

open access: yesJixie chuandong, 2020
The non-contact permanent magnet force linear driving device of double permanent magnet wheel is a magnetic driving device for long-distance linear transmission by means of permanent magnet force.
Sun Feng   +6 more
doaj  

Spin density wave dislocation in chromium probed by coherent x-ray diffraction [PDF]

open access: yes, 2009
We report on the study of a magnetic dislocation in pure chromium. Coherent x-ray diffraction profiles obtained on the incommensurate Spin Density Wave (SDW) reflection are consistent with the presence of a dislocation of the magnetic order, embedded at ...
A.G. Khachaturyan   +45 more
core   +4 more sources

Estimation of stability derivatives and dynamic stability characteristics of basic and AEW HS-748 aircraft [PDF]

open access: yes, 1988
Longitudinal and lateral stability derivatives of the basic and the AEW configurations of the HS-748 aircraft have been estimated. DATCOM and ESDU Data Sheet methods were employed to estimate the complete set of derivatives of the basic aircraft ...
Nagarajan, V, Sundaramurthy, H
core  

A spatio-temporal description of the abrupt changes in the photospheric magnetic and Lorentz-force vectors during the 2011 February 15 X2.2 flare

open access: yes, 2012
The active region NOAA 11158 produced the first X-class flare of Solar Cycle 24, an X2.2 flare at 01:44 UT on 2011 February 15. Here we analyze SDO/HMI magnetograms covering a 12-hour interval centered at the time of this flare.
A.A. Pevtsov   +43 more
core   +1 more source

A rigid–flexible coupling finite element model of coupler for analyzing train instability behavior during collision

open access: yesRailway Engineering Science, 2023
Rail vehicles generate huge longitudinal impact loads in collisions. If unreasonable matching exists between the compressive strength of the intermediate coupler and the structural strength of the car body, the risk of car body structure damage and train
Jingke Zhang   +7 more
doaj   +1 more source

Resource–saving Reserve of Strength Characteristics of Longitudinal Beam of the Metro Wagon Truck [PDF]

open access: yes, 2018
In this paper, an analysis of methods for calculating structures from allowable stresses and from limiting states is made. It is shown that when the transition from the longitudinal beam calculation to the allowable stresses to the calculation of the ...
Kuznetzov, A. (Aleksandr)   +2 more
core   +2 more sources

Experimental Research on Running Safety of Heavy-load Locomotive under Longitudinal Force

open access: yes机车电传动, 2017
To study the operation safety of heavy-load locomotive under effect of longitudinal force, by comparing the dynamic performance of different line conditions, different coupling force state and different coupler rotation angle, the relationship of ...
SHAO Jun, ZHANG Zhichao, YAO Xiaopei
doaj  

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