|
|
|
|
|
Changhao Lu, Enzhe Song, Congcong Xu, Zuo Ni, Xiyu Yang and Quan Dong
Stable ultra-lean combustion is an effective way for natural gas engines to reduce NOx emissions, but it also has higher requirements for ignition stability. The passive pre-chamber can effectively increase the ignition energy and extend the lean-burn li...
ver más
|
|
|
|
|
|
|
|
|
Xiaoyu Lu, Ruipeng Qin, Chunliang Dong and Chaotao Fan
In many underground engineering projects, rocks are often subjected to cyclic loading and unloading, such as repeated excavation of roadway surrounding rock, which will lead to damage to underground rocks, and the energy of rocks also changes. Therefore,...
ver más
|
|
|
|
|
|
|
|
|
Liangxing Jin, Tian Qin and Pingting Liu
Considering the change of different soil layer parameters of a two?layered strip foundation, a planar kinematically permissible multi?block failure mechanism of a two?layered strip foundation under vertical uniform load is formulated. Based on upper?boun...
ver más
|
|
|
|
|
|
|
|
|
Paulina Kruk-Fura and Jerzy E. Garbarczyk
This study demonstrated for the first time that it is possible to prepare nanocrystalline d-Bi2O3 that is stable at room temperature by twin-rollers and free cooling methods, using a ceramic crucible. The phase composition of prepared samples and upper l...
ver más
|
|
|
|
|
|
|
|
|
Tongmu Liu, Jianxing Yu, Huakun Wang, Yang Yu, Haoda Li and Baocheng Zhou
A modified method for predicting the wear coefficient of reciprocating sliding wear was proposed in this study, which is less time-consuming. Based on this method, reciprocating sliding wear tests of three chain alloys (CM490, SS316, and TC4) under diffe...
ver más
|
|
|
|