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In view of shortcomings such as premature convergence and oscillation in Simple Genetic Algorithms (SGA), the article adopts the method of adaptive adjusting for the probabilities of crossover and mutation. So the Improved Genetic Algorithms (IGA) is formed by adding the transgenic operator to SGA. And the optimum design program of steel box-concrete composite arch bridge based on improved genetic...
For small and medium Chain enterprises to be successful they must break through the logistics "bottleneck." This paper, targets small and medium sized supermarket chains and gives an analysis of its problems in logistics and distribution it also analyses the logistics and distribution model and its proposed logistics system optimization program.
Operating municipal infrastructure projects are a special operation model that the Government and the project investors achieve the operating infrastructure projects by signing infrastructure concession contracts. This paper is aimed at the feature of operating infrastructure projects to achieve the objective of maximizing the value of the projects, under the conditions the concession period and the...
The robust coordination of a two-stage supply chain with a risk-averse retailer and a risk-neutral supplier is studied under the condition of only knowing historical demand observation data. An objective function based on conditional value at risk is developed with respect to the risk-averse retailer, and the corresponding coordination mechanism for supply chain is designed with only knowing historical...
In order to descript how Database Technology can be used in Network Document Management System, this paper analyses the requirement of the system, and then, the paper descript the detail from these aspects: database design, security design and database optimization. Firstly, the paper shows how we can design the data storage method and the database of network document management system so that the...
The rigidity of twist-drill are determined by its structure parameters. In this paper, the FEM model of the twist-drill is established by software ABAQUS. With the methods of Orthogonal test and FEM, a quantitative analysis to the torsional rigidity of twist-drill have been developed. The optimization of the twist-drill structure parameters are carried out with Genetic Algorithm based on the objective...
The process planning and scheduling (PPS) is to determine a solution (schedule), which tells a production facility what to make, when, and on which equipment, to process a set of parts with operations effectively. Multiobjective PPS problems become more complex because the decision maker need to make a trade-off between two or more objectives while determining a set of optimal nondominated solutions...
Rationally determining the scale of production is one of the key technical problems of the mining from open-pit to underground. In this paper, technical, economic and social factors on the production scale of Daye Iron Mine are considered comprehensively, and the theory and method of fuzzy comprehensive evaluation are used to select. Then, verified by the gray system theory, the optimal scale of production...
It is deficiency to use accuracy as a measurement to evaluate model classifying ability. This paper proposes a measurement method which uses the area under the ROC curve, or AUC value, to evaluate the performance of the model. Furthermore, applying cross validation and grid-search methods, through designed algorithms, to build an optimization of support vector machines medical prediction model. The...
The high and new tech-enterprise belongs to the knowledge-intensive enterprise. The personnel recruitment in high and new tech-enterprise as the entrance of its human resources management system is more important than that of other enterprises, and its risk is also stronger. This article analyzes presentation forms and the causes of personnel recruitment risks and proposes the prevention and control...
Promotional activities have been commonly used by the retailers to increase profits, but the deficiencies of promotional system have brought about the losses in many aspects, which increasingly becomes the focus of the market's attention. With the introduction to the concept of management honeypot, this paper records management issues and submits them to the administrative levels, and meanwhile figures...
Surface integrity of 3D medical data is crucial for surgery simulation or virtual diagnoses. However, undesirable holes often exist due to external damage on bodies or accessibility limitation on scanners. To bridge the gap, hole-filling for medical imaging is a popular research topic in recent years. Considering that medical image, e.g. CT or MRI, has the natural form of tensor, we recognize the...
The grain size is an important quality index of granular materials. The accurate measurement of it has a guiding significance for technical performances and application of subsequent processing. Currently most of particle detection are done by manual operation such as screening method, which causes many problems as time-consuming measurement and lengthy testing steps. The particle size detection technology...
Because that transport links are not being considered enough in the existing decision making optimization model of manufacturers' order fulfillment, linear optimization model of manufacturers' order fulfillment is built according to factors as transporter, transport mode, type of line, model, and transportation of goods, transport origin and termination which have combined effects to transportation...
There are two major factors restricting current loop bandwidth, switching frequency and digital delay. Digital delay includes A/D sampling time and PWM duty cycle update. The calculating delay is the major source of delay in the loop. The bandwidth expansion strategy was proposed. Double stator current sampling and double PWM duty cycle update were achieved in a carrier period. This paper chooses...
This text applies relevant theory of the quality cost to the management of quality cost of the channel and then based on relative theories of fuzzy decision improving AHP in order to appraise every index of the system of the Channel quality cost and solves the problem of the empowerment.
Basing on the analysis of the current performance evaluation index system , this paper put forward that performance evaluation index system should be made to EVA as the center rather than to net income for the center because only the EVA is the measure of corporate value and wealth creation metrics . performance evaluation index system of the company of EVA-based includes corporate objectives and...
With the quick development of science and technology, weapon equipments become more and more intricate and have very high technology content. It brings the problem of high equipment acquisition risk and cost. How to overcome the problem aroused many concerns, and a lot of acquisition strategies were put forward. But most of the strategies are qualitative analysis from the angle of economics and can...
Abstract-Improving the operation and management level of coal washing is an important way to enhance their competitiveness for modern coal washing enterprises. The article establishes the comprehensive operation optimization management system of modern coal washing enterprise that are the operation optimization management involving the all-direction, the whole process and full-time interval, and describes...
In ongoing efforts to reduce the congestion of the airspace and the cost of company, optimization stands as a fundamental research problem. This paper proposes a new method by establishing a SIMMOD simulate model and a controller workload objective function to address the dynamic slot-route assignment problem of the air traffic. Genetic Algorithms was used that offers a dynamic optimization required...
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