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Based on the study of the workshop layout, aiming at minimizing "transportation distance", the mathematical model of the workshop layout is established, and the optimal design of workshop layout is achieved by using the genetic algorithm with penalty function. Through the calculation of a living example, the validity and feasibility of the algorithm is verified.
Progress in the maintenance area has been motivated by the increase in the number, size, complexity, and variety of equipment; growing awareness of the impact of equipment failures. Maintenance Method base on Risk Assessmen (MMRA) is one of the most popular maintenance optimization methods. Research presented in this paper is a pilot study using risk assessmen techniques in Preventive Maintenance...
Building energy-saving gap is very serious. Energy-saving chain management of architectural engineering is a new management mode which can effectively prevent this phenomenon. To study the improvement in building energy-saving performance under new management thought of building energy-saving, we need to consider the collaboration optimization and performance improvement of each operation point in...
In this paper, the fuzzy cluster analysis, fuzzy analytic hierarchy process and fuzzy house of quality are integrated, which are introduced in the quality assurance of service products design. Firstly, the customer quality requirements are made a hierarchical division by fuzzy clustering. Based on this, used the fuzzy analytic hierarchy process to determine weights of the customer quality requirements...
Social networks became more and more important as subject of research in recent years. In this paper, a study of one Online Social Network, namely "17salsa-net" (www.17salsa.com) which is one of the biggest online social networks that providing services for salsa dancers and salsa fans in China, had been made to lay out a systematic analysis of network properties and evolution factors. Most...
A SVSSI (special variable sample size and sampling interval) X̅ chart that uses two sampling intervals and three sample sizes has been shown superior to the traditional VSI and VSSI X̅ charts. The economic model for a SVSSI X̅ chart is developed. The performance indexes of the SVSSI X̅ chart ATS, AATS, ANSS, and ANOS are derived by employing the Markov chain approach. The cost function is derived...
Internet of Things is a key component of next generation information technology. And the key of Internet of Things is RFID. Now Internet of Things brings new requirements to handheld UHF RFID reader. This paper proposed a complete solution of handheld UHF RFID reader based on AS3991 and AM3517 for The Internet of Things. This reader uses AS3991 UHF RFID reader chip , which conforms to ISO18000-6C...
It depends on the revenue allocation that the stakeholders of construction project can cooperate harmoniously or not for it can reduce the conflict among the stakeholders and construction resources if the income can be distributed reasonably.With the use of game theory, this paper has created a rational revenue allocation model and determined the non-egalitarian distribution coefficient on the basis...
Public investment policy should pursue for increase in per capita income instead of increase in income. The objective is affected by some constraints, which involve taxation, corruption, labor productivity, and so forth. Empirical analysis shows the effectiveness of the public investment model. The model is able to provide reliable reference for governmental economic decision.
The government needs balance between GDP increase and social equity. In the public investment model, per capita income gap and employment rate should both be expressed in relative values to facilitate governmental evaluation and decision making. When the government aims to support underdeveloped regions or sectors, the model can help to allocate public investment to various regions and sectors.
This paper presents a new method for three-dimensional earth model visualization. This method models the velocity structure of seismic waves with the combination of cuboids and quad-prisms. And it is simpler than the traditional scientific visualization method in computational complexity. Using this method, we have constructed a visualization model for the CRUST5.1, a global 3D velocity model of the...
Brand trust refers to consumer's faith or confidence in order to avoid risks of a particular brand in the face of risk. In this paper, the connotation of brand trust was reviewed and analysis the impact of antecedent factors. At last, the paper proposes future research trends and analysis that the future research should be focused on dimensions of brand trust and analysis the impact of brand trust...
The energy consumption in mobile devices had gained more attention from infra-structure carriers and mobile manufacturers with the growth and expansion of third generation networks. The air interface resource allocation is the main factor of the energy consumption increase when the mobile is transmitting in background at anytime. When the air interface timeouts are reduced, there is a reduction in...
This paper will take a logistics company for example, and analyze its operation situations firstly. And then we try to build the system of performance evaluation index based on the KPIs method. Thirdly, this paper calculates the weight of evaluation index by fuzzy analytic hierarchy process method (FAHP), and tries to evaluate the logistics performance of this company. Result of example has proved...
A method to compress aeroengine test data is discussed in this paper. Three characteristics of test data are analyzed firstly. They are limited value range, limited variation range and limited value precision. Based on the characteristics, four processes including reducing decimal digits, eliding sign bit, eliding repeated value and eliding redundant coding bits are utilized to compress the data....
In this paper, we come up with a new algorithm for node localization in three-dimensional wireless sensor networks, DB. Based on the two well-known algorithms, DV-Hop and Bounding Cube, DB uses the distance of known nodes and unknown nodes as the radius of the cubes which are used for centroid estimate, and then evaluate location of the unknown nodes according to the intersection of the cubes. And...
Ore recovery depends on the stope structure parameters, at the same time, stope safety will be changed according to difference stope structure parameters. A mechanics model of stope structure of room and pillar mining method is established with FLAC3D, a finite difference software, in this paper. And the stope stability changing with crustal stress and stope structure parameters is simulated. The...
Current optimisation methods, especially stochastic methods, are short of intermediate data analysis and control. Moreover the intermediate data has rarely been interpreted into the knowledge useful for either optimisation itself or industry productions. In this paper, we proposed a new optimisation method featuring on the capability of intermediate data analysis and control without setting any computational...
According to some shortcomings of armored equipment maintenance, such as 'surplus maintenance' and 'corrective maintenance', Prognostics and Health Management (PHM) technology which was brought forward by USA army was introduced. Aiming at an armored vehicle engine, augmented-Failure Mode and Effect Analysis(aFMEA) was proceeded. Analysis on failure symptoms and sensor installation was introduced...
Wireless sensor network will enable the reliable monitoring of a variety of environments for several application like in military, forest, etc. This paper focus on the communication routing protocol which has impact on network lifetime and scalability. The sensor network lifetime is a function of energy. LEACH (Low-Energy Adaptive Clustering Hierarchy) as routing protocol of sensor network for energy...
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