Results 71 to 80 of about 836,844 (304)
Renmin Zhujiang, 2021 A river channel in Shenzhen intersects with the tunnel of Metro Line 9 vertically,with the overburden thickness of 1.87 m only,and “gantry” pile raft structure to assist anti-floating.This paper simplifies the force model of the “gantry” anti-floating ...
LU Bin, WANG Guojian
doaj
Penyelidik UTM raih 23 emas [PDF]
, 2012 Universiti Teknologi malaysia (UTM) mempamerkan keunggulan dalam bidang inovasi dan penyelidikan apabila merangkul 23 emas,22perak dan tiga gangsa di Expo teknologi Malaysia (MTE)2012,baru-baru ...
Harian Metro,
core
Stability and Behavior of Bulk Nanobubbles Under Reservoir Conditions
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Compared with microbubbles, nanobubbles exhibit superior stability, higher specific surface area, and smaller size. These characteristics have increasingly attracted the attention of petroleum researchers. However, existing literature lacks studies on nanobubble concentration and size under harsh reservoir conditions. To address this gap, this
Chuanying Zhang +5 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Aiming at the current demand for using wellbore coaxial lines with tubing and casing in oil wells, implementing microwave chemical‐assisted crude oil upgrading underground, and promoting “carbon‐zero” mining projects in oil field development, we carried out theoretical analysis, simulations, and applied research on the distributed parameters ...
Tao Liu, Lili Wang
wiley +1 more source
Study on the Fragmentation Characteristics and Dust Generation Mechanism of Coal Cutting by Pick
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT During underground excavation, coal dust generation threatens miners' health and damages ecosystems. Its generation is directly influenced by cutting pick performance and inherent coal properties. This study investigates the effects of coal properties and cutting parameters on coal fragmentation characteristics from a mesoscopic perspective ...
Shihang Li +10 more
wiley +1 more source
Unstuck Technology for EPB/TBM Dual Mode Shield Machine Stuck in Rock Stratum
Chengshi guidao jiaotong yanjiu［Objective］ During the tunneling process of the EPB (earth pressure balance shield machine)/TBM (full-face hard rock tunnel boring machine) dual-mode shield tunneling machine, problems such as excessive wear of the cutting tools and improper setting of ...
DUAN Yueqiang
doaj +1 more source
Early synapsids neurosensory diversity revealed by CT and synchrotron scanning
The Anatomical Record, EarlyView.Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit +6 more
wiley +1 more source
Simulation and Optimization of Metro Train Braking Rate under the Timing Condition
Chengshi guidao jiaotong yanjiu［Objective］ With the proposal of a green and low-carbon development goal for urban rail transit in China, metro is facing a daily increasing pressure of energy saving and emission reduction.
PAN Yang
doaj +1 more source
Management of Energy Exchange Process on Metro Rolling Stock with On-Board Capacitive Energy Storage [PDF]
Problems of the Regional EnergeticsThe object of this paper is to develop and synthesize a system for managing energy exchange processes between the overhead line, electric drive of metro vehicles, braking resistor and ca-pacitive energy storage devices.
Sulym A.O. +3 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen +3 more
wiley +1 more source