Results 141 to 150 of about 139,090 (312)
Metro regional economic model : Presented to the 32nd annual Pacific Northwest economic conference [PDF]
, 1998 14 pp. Tables. Published May, 1998. Captured January 28, 2009.This paper describes Metro’s regional model and presents the empirical estimates and some results from our study. It is shown that the Metro model contains reasonable parameter estimates and
Yee, Dennis, Metro (Or.)
core
An optimizing microseismic method for rock burst early warning based on mining production process
Deep Underground Science and Engineering, EarlyView.A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han +6 more
wiley +1 more source
Structural Optimization and Comparative Analysis of B-type Metro Bogie Frame
机车电传动, 2019 According to the service life of bogie frame of a project can not meet the operation requirements, by comparing and analyzing the time-domain and frequency-domain diagrams of line dynamic stress test data, the optimal structure scheme was put forward ...
Qingwei SONG +4 more
doaj
Research on Metro Vehicle Wheel Wear and Reprofiling Strategy
Chengshi guidao jiaotong yanjiuObjective Wheel wear directly affects the vibration environment of metro vehicles. Severe abnormal wear can lead to structural fatigue exceeding the limit, reducing the safety of train operation.
JIA Xiaoping +3 more
doaj +1 more source
Pelatihan Dan Pendampingan Pembuatan Paving Block Berbahan Baku Limbah Plastik HDPE Kelurahan Yosodadi, Kecamatan Metro Timur, Kota Metro [PDF]
Karang Taruna dan bank sampah Kelurahan Yosodadi Kecamatan Metro Timur Kota Metro merupakan salah satu Karang Taruna dan bank sampah yang telah melaksanakan program 3R (Reuse, Reduce, Recycle) sesuai dengan Peraturan Pemerintahan No 81 Tahun 2012 hal ini
Sriharyani, Leni +9 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Design of Train Remote Monitoring System Based on ZigBee and GPRS Technology
机车电传动, 2012 A metro train traction motor and gear box remote monitoring system was designed in this paper, which was based on ZigBee network, GPRS remote transmission and labVIEW-writed PC software.
葛玉荣, 时晓艳, 刘金涛
doaj
Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
Structural Analysis of PSD Mechanical System Based on FEA
机车电传动, 2012 Structural analysis model of metro platform screen door (PSD) mechanical system was built, and FEA method was employed to study the modal and structural stiffness of PSD system for getting the natural frequencies and vibration modes from modal analysis ...
应寅琼, 江虹, 李成, 谢永清
doaj
Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source