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In recent years, due to the raising of green manufacturing and environmental consciousness, the industrial equipment and molded product request toward energy saving, reducing cycle time and secondary process procedure. With high strength, high stiffness, high design possibility, better fatigue life and better corrosion resistance capability, PA66 polymer composite materials are gaining more and more...
The ever-increasing design complexity is driving the need of fast and accurate macro-modeling algorithms to accelerate the hierarchical timing. We introduce LibAbs, an effective macro-modeling algorithm that efficiently supports high accuracy, high compression rate, and multi-threading. LibAbs applies tree-based graph reduction techniques to reduce the model size with comparable accuracy values to...
Performance variation is a significant problem forlarge scale HPC systems and will increase on future exascalesystems. In this work, we show that performance variationimpacts the performance and energy efficiency of contemporarylarge-scale computing systems in highly temporally inconsistentways. We thus present a case for criticality models, a learningbased mechanism that allows a system to generate...
The 3D finite element analysis model of Package-on-Package solder joints was set up based on Patran software. The natural frequency, vibration mode of the model was analyzed under the condition of random vibration, the stress and strain distribution and the strain power spectrum density of response curves of the Package-on-Package solder joints were obtained, and the random vibration fatigue life...
Recent years people have witnessed a surge of interest in APT attack, due to its complex and persistent attack characteristics. In order to prevent APT attacks, this article studies and analyzes a large number of APT attack cases which have been disclosed, gives an overview of APT attack lifecycle and attack techniques. This paper discusses the purposes of APT attacks and APT attack characteristics...
A mathematical method is proposed to estimate the minimum number of PGV (Person Guided Vehicle) for a 450mm wafer fab. As with the transition from 300mm to 450mm, the drive for 450mm wafers is primarily based on the economic benefits achieved by having a larger number of chip area on a substrate. This effort has begun at SUNY Polytechnic Institute Colleges of Nanoscale Science + Engineering, driven...
On-line analytical processing (OLAP) provides analysis of multi-dimensional data stored in a database and achieves great success in many applications such as sales, marketing, financial data analysis. OLAP operation is a dominant part of data analysis especially when addressing a large amount of data. With the emergence of the MapReduce paradigm and cloud technology, OLAP operation can be processed...
The Enterprise Resource Planning (ERP) system is an integrated software package applied by many enterprises as an operations platform over the past years. However, according to an industrial survey, the failure rate of ERP system implementation is relatively high because of high implementation costs and long implementation time, incapable implementation teams, process misfits, resistance to change...
Displacement amplification ratio and input stiffness are significant design characteristics for an ultra-precision positioning flexure-based compliant mechanism. Early and accurate performance prediction models can significantly improve the reliability and availability of product in the field of ultra-precision positioning, but Existing theoretic models cannot predict its characteristics accurately...
Assistant Decision System for Optimization of Private Communication Network is a software tool used to optimize the private network and provide decision-making advice for the network maintenance technicians and network managers. The software tool can provide scientific decision basis for the optimization (or planning), construction, operation administration and maintenance (OAM) of the private network...
A seamless spectrum handover considering differential frequency channels is proposed to reduce the number of inter-cell handoff and to reduce the blocking/dropping probability of unlicensed secondary users (SUs). A two-dimensional markov chain model is proposed to evaluate the performance of the proposed handoff spectrum scheme. The proposed scheme can reduce the blocking rate and dropping rate of...
In this paper, a circuit model equivalent to that proposed in a previous work was verified through experimental and finite element methods. On the basis of this verified model, the impact of the parameters on the electrical characteristics of a circular flexural vibration mode piezoelectric transformer was systematically investigated through the orthogonal experiment design method. Some interesting...
The drastic development of E-Banking business has brought great cost saving and enormous rise of profit for commercial bank entities, so that every commercial banks are actively developing E-Banking business, and more attention and capital have also been inputted upon the development of information security ensuring products to ensure the safety of E-Banking. Because the information security ensuring...
The eco-composite wall structure is a new structural system, characterized by low weight, high strength, saving energy and good aseismic performance. It consists of concealed frame, concrete frame grids, filling block sand so on, which makes the entities calculation model extremely complicated. Therefore, it is necessary to present the simplified elastic calculation model of the structure. Based on...
The methodology of modeling and analyzing of a knowledge network are discussed in this article. Two steps will be taken to establish the model of a knowledge network for a scientific organization. Based no the network model, the density, betweenness centrality and structure expression analysis will be conducted. The calculation result of the density provides an objective indicator for the researchers...
The evolution of TD-SCDMA is LTE TDD. But the scarcity of spectrum resource below 1GHz is one of the most serious problems in the deployment of LTE TDD. Digital Dividend spectrum, which is free up for the conversion from analog TV to digital TV, is the ideal frequency band to deploy LTE TDD below 1GHz. So the coexistence issue between Digital Terrestrial Television Broadcast (DTTB) and LTE TDD in...
This paper focuses on adapting the Granular Theories to system modelling for design and development of a service-oriented system. It highlights how to integrate Granular Computing Structures, development philosophy, methodology and UML for modelling, organising and addressing systems through a case study of Emergency Assistance Service System (EAS). The proposed approach to building software development...
Because of inadequate study of customer behavior, it is difficult to develop targeted marketing strategies and business models, which also blocks its global development. And this lack of market perception has already become the barrier of its global development. Given the above situation, this article adopts Structural Equation Model to explore how to improve the competitiveness of 3G M-commerce market...
Over the past decade, granular computing has rapidly emerged as a new paradigm for distributed information systems. This paper describes an approach to develop service-oriented systems with granular computing theories and OMG standard UML (Unified Modelling Language)[1,4]. The paper goes on to outline how to integrate granular computing structures, methodology and UML for modelling, organising and...
This paper presents reliability design and analysis should be developed in the course of process design in order to solve the process defects. Studying the conception and solution of process reliability in Mechanical Manufacture, we put forward the frame of top technology and the basic idea about how the process to realize the inhered reliability. Also, the research on process reliability will establish...
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