نتایج جستجو برای: cable shovel

تعداد نتایج: 12916  

2005
Long Yu Jiahua Tan

In this paper, an efficient two-dimensional finite element model for a mooring cable and seabed interaction is built while geometric shape and tensions of the cable are computed in time domain. In the model, a hybrid beam element is employed to simulate the mooring cable with the seabed simulated by different soil constitutive models. When the elastic and elastic-plastic soil constitutive model...

2007
Nebojša RAIČEVIĆ Slavoljub ALEKSIĆ Aleksandra Medvedeva

The problem of electric field grading in cable components, having both theoretical and technological implications, can be framed in more general topic of field control in HV equipment. A solution may be obtained by two possible approaches: using geometric field control [11, 13, 14, 15, 17, 18], in which the field distribution depends on the arrangement of main and auxiliary electrodes or using ...

Journal: :iranian journal of public health 0
z tohidast akrad jm beitollahi aa khajetorab

the most important factor in evaluating dental health is dmft (decayed, missing, filled, teeth). this research was conducted to compare dmft index in the workers of sweets and cable factories of shahrood (moghan), a small city near 300 km east of tehran. all the 127 production line workers of cable factory and 124 workers of sweets factory who had the predetermined criteria were selected. a que...

1999
Edward F. Vance

Methods of directly coupling sources to cables for-EMP testing are reviewed. Effects of cable impedance, cable shielding, and structure in the vicini,ty of the cable are examined. Several practical coupling mechanisms are discussed .

2010
Takeo Igarashi Mike Stilman

We present two path planning algorithms for mobile robots that are connected by cable to a fixed base. Our algorithms efficiently compute the shortest path and control strategy that lead the robot to the target location considering cable length and obstacle interactions. First, we focus on cable-obstacle collisions. We introduce and formally analyze algorithms that build and search an overlappe...

Journal: :Algorithms 2014
Xuebin Qin Mei Wang Jzau-Sheng Lin Xiaowei Li

In electric power systems, power cable operation under normal conditions is very important. Various cable faults will happen in practical applications. Recognizing the cable faults correctly and in a timely manner is crucial. In this paper we propose a method that an annealed chaotic competitive learning network recognizes power cable types. The result shows a good performance using the support...

2006
Wei-Tsong Lee Kuo-Chih Chu Chin-Ping Tan Kuo-Kan Yu

Since the high bandwidth and popular usage are the characteristics of cable network, it becomes one of the main solutions for residential network. The cable network is a kind of asymmetric bandwidth architecture, which generates certain performance issues. This article first discusses the issues stemmed from asymmetric bandwidth. It then briefly introduces Data over Cable Service Interface Spec...

2011
Jianhui Song Yang Yu Hongwei Gao

Based on the principle of time domain reflectometry(TDR) cable length measurement, the principle error of the TDR cable length measurement is analyzed. Methods for reducing cable length measurement error are analyzed. Two cable length measurement systems based on the TDR principle are designed. The high-precision time interval measurement module is the core of the first measurement system. The ...

2017
Pengyu Wang Gang Liu Hui Ma Yigang Liu Tao Xu

This paper presents a theoretical and experimental study on the ampacity of the prefabricated straight-through joint of a 110 kV high voltage cable. Thermal modelling revealed that the critical spot limiting the ampacity of this type of cable joint is located on its crosslinked polyethylene (XLPE) insulation section. The axial distribution of the thermal field in this type of cable joint was al...

2013
N. Yang D-S Jeng X. L. Zhou

This paper presents a semi-analytical approximation for a two-dimensional (2D) tension analysis of submarine cables during laying operations. In the analysis, based on geometric compatibility relations and equilibrium equations, a set of non-linear differential equations are obtained. The present model considers effects of ocean currents, cable ship motion, pay-out rate, water depth and materia...

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