Results 41 to 50 of about 2,619,969 (311)

Elastoplastic model for cemented coarse-grained materials and its application

open access: yesYantu gongcheng xuebao, 2019
Until now, the engineers still doubt about whether the cemented coarse-grained soils can be used in permanent structures such as high rockfill dams. It is mainly due to the fact that the studies on the mechanical properties of the cemented coarse-grained
WEI Kuang-min 1,2, CHEN Sheng-shui 1,2, LI Guo-ying 1,2, MI Zhan-kuan 1,2, LIN Hua 1,2
doaj   +1 more source

Failure Mechanism of True 2D Granular Flows

open access: yes, 2015
Most previous experimental investigations of two-dimensional (2D) granular column collapses have been conducted using three-dimensional (3D) granular materials in narrow horizontal channels (i.e., quasi-2D condition).
Bui, Ha H.   +2 more
core   +1 more source

Numerical simulation of evolution of viscous debris flows considering interface

open access: yesYantu gongcheng xuebao, 2019
Based on the interface theory, taking the corresponding surface of the yielding depth of debris flows as the interface, the viscous debris flow can be divided into ideal fluid and Bingham fluid.
DENG Zhao 1, CHEN Sheng-shui 1, 2, ZHONG Qi-ming 1, 2
doaj   +1 more source

Structure-Sensitive Mechanism of Nanographene Failure

open access: yes, 2010
The response of a nanographene sheet to external stresses is considered in terms of a mechanochemical reaction. The quantum chemical realization of the approach is based on a coordinate-of-reaction concept for the purpose of introducing a mechanochemical
A. Chuvilin   +31 more
core   +1 more source

Influences of filling replacement and drainage modification on stability of water conveyance canals in North Xinjiang

open access: yesYantu gongcheng xuebao, 2021
The leakage of canals in North Xinjiang is serious, and the behavior of expansive canal soil deteriorates rapidly, leading to frequent canal slides. In order to solve this problem, the canals are refilled and rebuilt, and a drainage system is set up at ...
DENG Ming-jiang 1, CAI Zheng-yin 2, 3, GUO Wan-li 3, HUANG Ying-hao 2, 3, ZHANG Chen 3
doaj   +1 more source

Metabolic Mechanisms in Heart Failure [PDF]

open access: yesCirculation, 2007
Although neurohumoral antagonism has successfully reduced heart failure morbidity and mortality, the residual disability and death rate remains unacceptably high. Though abnormalities of myocardial metabolism are associated with heart failure, recent data suggest that heart failure may itself promote metabolic changes such as insulin resistance, in ...
Ashrafian, Houman   +2 more
openaire   +4 more sources

Experimental study on special physical and mechanical properties of white sandstone in North Xinjiang

open access: yesYantu gongcheng xuebao, 2020
The white sandstone is a commonly used soil material in the Gobi canal. In order to study its physical and mechanical properties, a series of indoor tests are carried out.
DENG Ming-jiang 1, CAI Zheng-yin 2, 3, GUO Wan-li 3, HUANG Ying-hao 2, 3, ZHANG Chen 3
doaj   +1 more source

Experimental study on permeability and its influencing factors for sandy gravel of Dashixia dam

open access: yesYantu gongcheng xuebao, 2019
A super-large cubic permeability meter (1000 mm×1000 mm) and a traditional cylindrical large-scale permeability meter (Φ300 mm) are used to conduct systematic experiments on the permeability characteristics of gravel materials to be used in Dashixia ...
CHEN Sheng-shui 1,2, LING Hua 1,2, MI Zhan Kuang 1,2, MIAO Zhe 3, MEI Shi-ang 1,2
doaj   +1 more source

Cardiac stem cells: A promising treatment option for heart failure. [PDF]

open access: yes, 2012
Cardiovascular diseases are the most common cause of death in the world. The development of heart failure is mainly due to the loss of cardiomyocytes following myocardial infarction and the absence of endogenous myocardial repair.
Huang, Lan, Zhao, Xiaohui
core   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

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