Results 91 to 100 of about 6,330 (209)

Designing by Geometry. Rankine's Theorems of Transformation of Structures. [PDF]

open access: yes, 2010
William John Macquorn Rankine (1820-1872) was one of the main figures in establishing engineering science in the second half of the 19th. Century. His Manual of Applied Mechanics (1858) gathers most of his contributions to strength of materials and ...
Huerta Fernández, Santiago
core   +1 more source

Impact of accurate reinforcement steel assessment on structure longevity and progressive collapse resistance

open access: yesSustainable Structures
Current standards for reinforcement steel may not accurately reflect the actual properties of steel used in construction, leading to potentially underestimating the resistance and longevity of structures.
Omer Ghunaim   +3 more
doaj   +1 more source

Prediction model for progressive collapse resistance of concrete beam-column subassemblies considering tensile catenary action using machine learning algorithms

open access: yesResults in Engineering
Following the gradual crushing and spalling of concrete at large deformations, tensile catenary action (TCA) usually develops in axially restrained reinforced concrete beam-column subassemblies and provides a crucial resistance mechanism to avoid ...
Yihua Zeng   +3 more
doaj   +1 more source

RESEARCH ON VIBRATION CONTROL METHOD OF TRAIN PANTOGRAPH

open access: yesJixie qiangdu, 2019
In this paper, the vibration control method of train pantograph is studied. A dynamic equation based on Newton’s second law is established for the two element pantograph model.
GUO YanHong
doaj  

An Exotic Approach to Hadron Physics

open access: yes, 2007
An exotic approach to hadrons is discussed. It is based on the recently developed open-closed string duality explicitly conjectured as the AdS/CFT correspondence. Mesons as well as pentaquarks are studied in this approach.
Bando, Masako   +4 more
core   +1 more source

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

open access: yesHigh Voltage
When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load ...
Ye Cao   +13 more
doaj   +1 more source

Structural behaviour of fully coupled spar–mooring system under extreme wave loading

open access: yesJournal of Civil Engineering and Management, 2014
Floating spar platform has been proven to be an economical and efficient type of offshore oil and gas exploration structure in deep and ultra-deep seas. Associated nonlinearities, coupled action, damping effect and extreme sea environments may modify its
A. B. M. Saiful Islam   +4 more
doaj   +1 more source

Oceanus. [PDF]

open access: yes, 1995
v.
Woods Hole Oceanographic Institution.
core   +1 more source

$G$-prime and $G$-primary $G$-ideals on $G$-schemes

open access: yes, 2014
Let $G$ be a flat finite-type group scheme over a scheme $S$, and $X$ a noetherian $S$-scheme on which $G$-acts. We define and study $G$-prime and $G$-primary $G$-ideals on $X$ and study their basic properties.
Aoyama Y.   +17 more
core   +2 more sources

Research on dynamic characteristics of pantograph arc under cross wind

open access: yes机车电传动, 2022
The pantograph arc has become an important factor restricting the further development of high-speed trains. Therefore, in-depth research on the characteristics of pantograph arc is of great significance for further analyzing the damage characteristics of
SUN Chuanming   +3 more
doaj  

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