Evaluation of the Integration Level of Urban and Rural Logistics in Henan Province
Issue:
Volume 3, Issue 1, June 2019
Pages:
1-5
Received:
18 December 2018
Accepted:
25 January 2019
Published:
28 February 2019
DOI:
10.11648/j.cse.20190301.11
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Abstract: This paper uses factor analysis method based on 15 relevant data to evaluate the Development Level of Urban-Rural Logistics Integration in 18 cities of Henan Province. Through the establishment and analysis of the model, three key factors affecting the integration of urban and rural logistics in Henan Province are summarized: economic development level, transportation infrastructure and utilization rate of transportation facilities. Combining with the analysis of the model and the final factor score to find the problem of hindering the development of logistics and offering a proposal.
Abstract: This paper uses factor analysis method based on 15 relevant data to evaluate the Development Level of Urban-Rural Logistics Integration in 18 cities of Henan Province. Through the establishment and analysis of the model, three key factors affecting the integration of urban and rural logistics in Henan Province are summarized: economic development l...
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The Effect of Zinc Acetate Concentration on Optical Properties of ZnS Thin Films by Spectroscopic Ellipsometry Analysis Method
Batool Ahmadi Khanegahi,
Hassan Sedghi
Issue:
Volume 3, Issue 1, June 2019
Pages:
6-11
Received:
3 December 2018
Accepted:
14 December 2018
Published:
28 March 2019
DOI:
10.11648/j.cse.20190301.12
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Abstract: In the present work ZnS thin films with different concentration (0.25, 0.5, 0.75 and 1 M) have been deposited on glass substrates by sol–gel spin coating method using an acidic solution, containing zinc acetate (Zn(CHC3COO) 2.2H2O) and thiourea (CH4N2S) as precursors. The optical properties of ZnS thin films such as refractive index, extinction coefficient, dielectric function and band gap energy of the films were obtained by spectroscopic ellipsometry analyzes method in the wavelength of 300 to 800 nm. Considering the data obtained, it can be deduced that the optical properties of ZnS films is highly influenced by Zn concentration. The extinction coefficients (k) of the films were increase with increasing concentration of zinc acetate. From these results it is found that the energy gap of the ZnS films decreases with increasing concentration of zinc acetate in the range of 3.65-2.75eV.
Abstract: In the present work ZnS thin films with different concentration (0.25, 0.5, 0.75 and 1 M) have been deposited on glass substrates by sol–gel spin coating method using an acidic solution, containing zinc acetate (Zn(CHC3COO) 2.2H2O) and thiourea (CH4N2S) as precursors. The optical properties of ZnS thin films such as refractive index, extinction coe...
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Implementation of Trajectory Tracking for Snake-Like Robot Using Proportional Controller
Lu Mai,
Kyaw Zin Latt,
Tin Tin Hla
Issue:
Volume 3, Issue 1, June 2019
Pages:
12-19
Received:
17 July 2019
Accepted:
19 August 2019
Published:
2 September 2019
DOI:
10.11648/j.cse.20190301.13
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Views:
Abstract: The improvement of rescue robots has been vigorously in perilous surroundings for investigate and rescue processes. The secure genus of mobile robots is called snake-like robot. The paper presents implementation of trajectory tracking for snake-like robot by using Proportional controller. In this work, the frame design of snake-like robot model has been accomplished based on the control function with mathematical geometry. The tracking path for snake-like robot was established with the circular path. And then the estimation between the actual tracking and original path could be analysed with MATLAB programming. In this paper, snake-like robot head position is controlled to converge the desired trajectory tracking. In the control system, the rest of the units are automatically converged to track the path of the preceding units by controlling one unit in the head. The tracking error could be reduced by using Proportional controller. The performances of the tracking paths for snake-like robot were shown in this paper.
Abstract: The improvement of rescue robots has been vigorously in perilous surroundings for investigate and rescue processes. The secure genus of mobile robots is called snake-like robot. The paper presents implementation of trajectory tracking for snake-like robot by using Proportional controller. In this work, the frame design of snake-like robot model has...
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