Ni Z.,Hefei University of Technology |
Ni Z.,Key Laboratory of Process Optimization and Intelligent Decision making |
Wang H.,Hefei University of Technology |
Wang H.,Key Laboratory of Process Optimization and Intelligent Decision making |
And 3 more authors.
Zhongguo Jixie Gongcheng/China Mechanical Engineering | Year: 2014
Cloud computing technology and service technology were applied to study the dynamic cloud service selection problem and a hierarchical model of cloud manufacturing service and dynamic cloud service selection algorithm (CSSMA) were presented based on MapReduce and multi-objective ant colony optimization. Multi-objective ant colony optimization, Map and Reduce function, and optimization strategies were employed in CSSMA. CSSMA run parallel distributed in the manufacturing cloud platform. The outcome of the simulation experiments shows that CSSMA performes favorable capabilities in solving dynamic cloud service selection; it also demonstrates the proposed algorithm has good ability in processing large scale problems.
Tang L.,CAS Anhui Institute of Optics and Fine Mechanics |
Shu Z.,CAS Anhui Institute of Optics and Fine Mechanics |
Dong J.,CAS Anhui Institute of Optics and Fine Mechanics |
Wang G.,CAS Anhui Institute of Optics and Fine Mechanics |
And 7 more authors.
Chinese Optics Letters | Year: 2010
We describe a mobile molecular Doppler wind lidar (DWL) based on double-edge technique for wind measurement of altitudes ranging from 10 to 40 km. A triple Fabry-Perot etalon is employed as a frequency discriminator to determine the Doppler shift proportional to the wind velocity. The lidar operates at 355 nm with a 45-cm-aperture telescope and a matching azimuth-over-elevation scanner that provides full hemispherical pointing. To guarantee wind accuracy, a single servo loop is used to monitor the outgoing laser frequency to remove inaccuracies due to the frequency drift of the laser or the etalon. The standard deviation of the outgoing laser frequency drift is 6.18 MHz and the corresponding velocity error is 1.11 m/s. The wind profiles measured by the DWL are in good agreement with the results of the wind profile radar (WPR). Evaluation is achieved by comparing at altitudes from 2 to 8 km. The relative error of horizontal wind speed is from 0.8 to 1.8 m/s in the compared ranges. The wind accuracy is less than 6 m/s at 40 km and 3 m/s at 10 km. © 2010 Chinese Optics Letters.
Tang L.,Chinese Academy of Sciences |
Wang Y.-T.,Anhui Finance and Trade Vocational College |
Shu Z.-F.,Chinese Academy of Sciences |
Dong J.-H.,Chinese Academy of Sciences |
And 7 more authors.
Chinese Physics Letters | Year: 2010
A mobile molecular Doppler wind lidar (DWL) based on double-edge technique is presented for wind measurement at altitudes from 10km to 40 km. A triple Fabry-Perot etalon is employed as a frequency discriminator to determine the Doppler shift proportional to the wind velocity. The lidar operates at 355nm with a 45-cm aperture telescope and a matching azimuth-over-elevation scanner that can provide full hemispherical pointing. In order to guarantee the wind accuracy, different forms of calibration function of detectors in different count rates response range would be especially valuable. The accuracy of wind velocity iteration is improved greatly because of application of the calibration function of linearity at the ultra low light intensity especially at altitudes from 10km to 40 km. The calibration functions of nonlinearity make the transmission of edge channel 1 and edge channel 2 increase 38.9% and 27.7% at about 1M count rates, respectively. The dynamic range of wind field measurement may also be extended because of consideration of the response function of detectors in their all possible operating range. © 2010 Chinese Physical Society and IOP Publishing Ltd.
Wu H.,Hefei University of Technology |
Ni Z.-W.,Hefei University of Technology |
Wang H.-Y.,Hefei University of Technology |
Wang H.-Y.,Anhui Finance and Trade Vocational College
Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS | Year: 2012
The researches on solving problems with Ant Colony Optimization(ACO) distributed parallel under cloud computing were less, and ACO had defects in long search time and convergence in non-optimal solution. When the scale of problem was large, it was too hard to solve. Therefore, MapReduce-based ACO was proposed by using cloud computing to parallel ACO. In this algorithm, dividing conquer and simulated annealing algorithm were merged into ACO to improve the defects. It was also applied to solve large-scale of Traveling Salesman Problem(TSP). The simulation experiment got a well effect and the new solutions of test gr666 were obtained.
Wang H.-Y.,Hefei University of Technology |
Wang H.-Y.,Anhui Finance and Trade Vocational College |
Ni Z.-W.,Hefei University of Technology |
Wu Z.-J.,Hefei University of Technology
Moshi Shibie yu Rengong Zhineng/Pattern Recognition and Artificial Intelligence | Year: 2014
Multi-tenant service customization is one of the key technologies to facilitate the agile SaaS multi-tenant architecture, and it can meet the ever-changing personalized demands from customers as well. The hierarchical graph and the customization process of multi-tenant service customization are employed in this paper, and a customization algorithm based on MapReduce and multi-objective ant colony optimization (MSCMA) is proposed. The most suitable business process and the optimized service composition can be found out from various business processes and massive services according to the non-functionality requirement of the tenant, and the optimization tasks can be fulfilled in distributed cloud computing environment in parallel by MSCMA. The results of the simulated experiment demostrate that MSCMA shows favorable convergence and scalability in solving multi-tenant service customization and the proposed algorithm has good ability in processing massive data and solving large scale problems. ©, 2014, Journal of Pattern Recognition and Artificial Intelligence. All right reserved.
Liu H.,Hefei University of Technology |
Chen T.,Hefei University of Technology |
Shi Y.,Anhui Finance and Trade Vocational College |
Chang D.,Hefei University of Technology |
And 2 more authors.
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | Year: 2011
Effect of Ni loading amount and reaction temperature on catalytic cracking of tar was investigated over a nickel base catalyst of palygorskite clay (Ni/PG) that was prepared by the wetness method. The morphology, phase and carbon deposition of catalysts were characterized by transmission electron microscopy, X-ray diffraction and total carbon analysis, respectively. The results show that the tar removal and hydrogen yield can be improved at a great Ni loading amount. In addition, the tar removal and hydrogen yield could be enhanced at a high reaction temperature, and the Ni loading over the Ni/PG catalyst exhibits a superior capacity of resistance to the carbon deposition.
Chen H.,Anhui Finance and Trade Vocational College |
Feng N.,Hefei University of Technology
Advanced Materials Research | Year: 2013
An Ecological Industrial Park (EIP) is an important practical tool to achieve sustainability, but the stability during its operation is a prominent problem. With the construction and running of many EIPs in China, the in-depth study on the stability is extremely urgent. It has been partially confirmed from the statistics that information platform influences the stability in an industrial ecosystem. On this basis, this paper further analyzed the construction of information platform in EIPs, and tried to study its promoting effects on the stability of EIPs from a new angle instead of the statistical angle. © (2013) Trans Tech Publications, Switzerland.
Yang R.-F.,Anhui Finance and Trade Vocational College |
Fang Y.-T.,Jiangsu University
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2012
In order to determine the defect modes of one-dimensional phononic crystals, the way of obtaining defect modes basing on the Bloch therory were derived through analytic method. The result is well agreement with that obtained through transfer matrix method.
Wang B.,Anhui Finance and Trade Vocational College
Nature Environment and Pollution Technology | Year: 2016
This study aimed to analyse the current status of water-environment pollution in Yangtze River basin in China and to determine the size of agricultural economy loss caused by water-environment pollution based on statistical data of water-environment pollution in Yangtze River basin from 2007-2013. We initially analysed the influences of water-environment quality and agricultural nonpoint source pollution in Yangtze River basin on water environment. Then, we used the shadow price method to calculate the agricultural economy loss caused by water pollution in Yangtze River basin in 2007-2013. Finally, we proposed pertinent policies and suggestions for water-pollution governance. Results indicated the three major problems related to the study: prominent water pollution in the local area, serious pollution of agricultural nonpoint source and insufficient protective measures, and shortage of capacity for the governance of water-environment pollution in Yangtze River basin. In 2007-2013, the shadow price values of agricultural water in Yangtze River basin fluctuated within 1.46 to 1.58 (RMB/t). As a middle-level basin in China, from the aspect of time tendency, inferior V water in Yangtze River basin basically maintained a steadily decreasing tendency in recent years with little change in total water consumption. As a result, the overall degree of loss of water pollution in Yangtze River basin also presented a steadily decreasing tendency, and the annual average agricultural economy loss caused by water pollution was 17,941,000,000 (RMB). Our findings have significant realistic value in the monitoring of water-environment quality, environmental governance, and agricultural development in Yangtze River basin in China.
Xu L.,Anhui Finance and Trade Vocational College
BioTechnology: An Indian Journal | Year: 2014
China College pay more attention to venture training system construction work, but for inputs of resources whether made has expected of effect, operation of training system whether effective, has been lacking evaluation mechanism and method, this paper based on establishing effectiveness evaluation indicators system of college venture training system, using fuzzy integrated evaluation method, from factors set, and weight set, and evaluation set, these several aspects to build effectiveness evaluation model of college venture training system, to make intuitive assessment and evaluation on college venture training system construction and run situation. The model can be used to evaluate the University's entrepreneurship training system, can also be used for other comparative study on training system of the University. These articles also make further explanations and clarifications on evaluation model and its application. © Trade Science Inc.