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This study compares file folder structures on personal computers of two groups of information workers, administrative staff and PhD students. A set of quantitative measures are calculated which disclose the differences and similarities between folder structures of the two user groups. The results shows that the group conducting more administrative activities has broader and shallower folders than...
Coal mine materials delivery process has the following characteristics: (1) Depot and warehouse are located in different places; (2) Dangerous materials include explosives and detonators which cannot be mixed together for delivery; (3) There is no desired time window, but urgency for demand. Our objective aims at minimizing the distribution cost. For dangerous materials delivery process, we build...
By adopting the prospect theory, this paper explores how loss aversion influences suppliers' buyback policies when retailers are loss-averse. Specifically, this paper examines how buyback contract coordinates a supply chain, which consists of one loss-averse retailer and one risk-neutral supplier with stock losses. Research models in centralized setting and decentralized solution are proposed and...
An important problem in robot simultaneous localization and mapping (SLAM) is loop closure detection. Recent studies of the problem have led to successful development of methods that are based on images captured by the robot. These methods tackle the issue of efficiency through data structures such as indexing and hierarchical (tree) organization of the image data that represent the robot map. In...
The valuation of game situation was experimentally studied according to the characteristics of Einstein würfelt nicht!(EWN), and a reasonable evaluation method is obtained in this paper. In addition, this paper presents an optimized Monte Carlo algorithm based on the valuation of game. Finally, the optimized Monte Carlo algorithm played chess respectively with the Mini-Max algorithm and Monte Carlo...
Atmospheric turbulence affects the imaging system at a long distance, which causes time-varying blur. Although the blur kernel is unknown, we propose an algorithm to estimate Optical Transfer Function (OTF) for long-exposure atmospheric turbulence blurred images. In this paper we present a novel image prior-isolate edges prior to predict a sharp ‘vision’ of degraded image edges, and utilize the two...
The classification performance of previous IG algorithm may decline obviously because of the maldistribution of classes and features, due to which an improved text feature selection method UDsIG is proposed. First, we select features by classes to reduce the impact on feature selection when the classes are unevenly distributed. After that, we use feature equilibrium of distribution to decrease the...
Shearlet transform which is based on a multiresolution analysis and built in the discrete framework provides efficient multiscale directional representations and yields approximately optimal representation properties. We employ the Laplacian model to describe the coefficients in shearlet domain, then in the MAP theory, a shearlet-based deblurring problem is equivalent to an optimization problem. Experimental...
The paradigm of cloud computing has spontaneously prompted a wide interest in market-based resource allocation mechanisms by which a cloud provider aims at efficiently allocating cloud resources among potential users. Among these mechanisms, auction-style pricing policies, as they can effectively reflect the underlying trends in demand and supply for the computing resources, have attracted a research...
According to the data of the 18 cities and counties pesticide usage and tropical crops area of HaiNan province from 2003 to 2010, the prediction model is established based on the particle swarm optimization algorithm. From the fitted curve the trend direction about pesticides usage with the time course of change is clearly observed. The result can be used to provide a reference for department of pesticide...
According to course teaching characteristic and actual status of Network Operating System, describes some reformation measures about teaching content, teaching methods, assessment and textbook construction. As a result of practice, it could provide reference value for Network Operating System teaching.
A sinusoidal photovoltaic inverter, which is a vital part of photovoltaic power generation system, is designed in this paper. The efficiency, quality, reliability are the key issues for the photovoltaic power supply. An improved push-pull DC-DC circuit is achieved and used in the inverter with full bridge DC-AC circuit. The control strategy is realized by a DSP chip, the DC booster is adopted by push-pull...
In homogeneity of cardiac electro physiology is existed in both normal and diseased hearts, which would be exacerbated by electrical or structural remodeling. Slow heart rate or decreasing repolarization reserve of action potential can enhance transmural heterogeneity and promote arrhythmia generation. In this study, we used optical mapping technique to investigate how pacing rate changing and Ikr...
W-Climbot is an inchworm-like biped wall-climbing robot we developed with a modular approach. Consisting of five joint modules and two suction modules, the robot is actually a mobile 5-DoF arm with dual end-effectors at the two ends. With this kinematic structure and biped climbing mode, W-Climbot has superior wall-climbing function (e.g., great ability to omni-directional locomotion, to negotiate...
According to the character of the electronic information industry in Tianjin, its operation mode, conditions and dynamic has been studied. Its operation mode is that the industry is instructed by the leader firms, because the leader firms can attract more larger enterprises to settle in Tianjin and promote the development of related industries. This operation mode is formed under some operation conditions...
University culture is an important part of human advanced culture. Culture is the soul of university, university just use this kind of culture to cultivate talents. From five dimensions of university cultural development, which is mental culture, matcrial culture, institutional culture, environmental culture and featured items, people use basic fuzzy analysis method to evaluate university cultural...
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