This paper presents the construction of a bridge deck and jersey barriers with the newly developed polyolefin fiber reinforced concrete. This is the first time this synthetic fiber-reinforced concrete was used in the ...
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The Assembly Line Balancing Problem (ALBP) is to determine the optimal allocation of assembly operations to a set of workstations, with respect to precedence constraints. This paper proposes a multi-objective optimiza...
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The Assembly Line Balancing Problem (ALBP) is to determine the optimal allocation of assembly operations to a set of workstations, with respect to precedence constraints. This paper proposes a multi-objective optimization to solve the ALBP using a Genetic Algorithm (GA) approach. The aim is to minimize, besides the number of workstations, two aspects, very important from an economic point of view, but poorly treated in literature: the number of high skilled workers needed to correctly accomplish the operations and the number of assembly equipment along the line. A case study was finally discussed in order to demonstrate the capability of the proposed method in finding optimized solutions in different scenarios. (C) 2016 The Authors. Published by Elsevier B.V.
In this article, the informatization developments of main international ports are summarized. Then, the detail requirements of next generation Intelligent Ports are collected and analyzed. Later, the corresponding key...
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ISBN:
(纸本)9781479905300;9781479905294
In this article, the informatization developments of main international ports are summarized. Then, the detail requirements of next generation Intelligent Ports are collected and analyzed. Later, the corresponding key technologies of Internet of Things are summarized. And, a kind of Intelligent Ports solution is proposed, and its main functions are designed in detail. Finally, the future development trend of Intelligent Ports is predicted.
The monitoring equipment of forest fire prevention usually needs all-weather supply of electric power. But most of solar power systems applied in forest fire prevention use fixed-mounted solar panels. This problem res...
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The monitoring equipment of forest fire prevention usually needs all-weather supply of electric power. But most of solar power systems applied in forest fire prevention use fixed-mounted solar panels. This problem results in low efficiency of electricity generation. Thus the area of solar panels has to increase to meet electricity demand of the equipment. An all-weather automatic solar tracking method was proposed, which combined the photoelectric detection and the solar trajectory tracking modes. The method used a sunlight intensity sensor to estimate weather conditions firstly. Then it utilized a solar position sensor and a solar trajectory algorithm to determine the changes of solar position. Finally, different tracking models were taken to track the sun in sunny, cloudy and rainy days. Through simulation experiments, this method could effectively reduce the impact of weather change and ensure to track the sun stably and accurately all weather.
The investigation of varactor tuned Ka-band Gunn oscillators in full-height waveguide cavities is described in this paper. The experiment result shows that the frequency tuning range is 3.06 GHz and output power is la...
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The investigation of varactor tuned Ka-band Gunn oscillators in full-height waveguide cavities is described in this paper. The experiment result shows that the frequency tuning range is 3.06 GHz and output power is larger than 30 mW.
In view of the existing problems of complexity of process parameters and the difficulty in determining the optimal process in the field of 3D printing, polylactic acid (PLA) samples were prepared by fused deposition m...
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The 2.5D finite-difference-element method (FDM) gun and collector modeling code: CHAELOPS, is under-developing at University electronic science and technology of China (UESTC). This developing program is designed to a...
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