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At present, optimization modeling has become a powerful tool to tackle emergency logistics problems. A multi-objective material supply model in an emergent disaster is first constructed in the paper. The differential evolution (DE) algorithm with constraint handling methods, specialized for the material supply model, is then presented. Finally, a simulation experiment is performed and our results...
In order to render a biometric system robust against malicious tampering, it is important to understand the different types of attack and their impact as observed by the liveness and matching scores. In this study, we consider zero-effort impostor attack (referred to as the Z-attack), nonzero-effort impostor attack such as presentation attack or spoofing (S-attack), and other categories of attack...
In this paper, we describe an on-going experiment in asynchronous on-line learning. In 2010, a popular graduate statistics course was converted to this format. The course has now been offered four times in the new format. We review some highlights from the history of personalized instruction and how those ideas influenced the development of our course; as well as the results of its first four offerings...
Solar cells made with quantum dots as the active absorber are currently the subject of intense investigation. A key reason for this interest is the band gap tunability of quantum dots. The most commonly used quantum dots in the context of photovoltaics are lead sulfide (PbS) and lead selenide (PbSe) ones. Among the various device architectures that have been reported, the depleted heterojunction is...
This study investigates the general framework of the decisions in in-plant milk run systems, and also the other related decisions that affect or affected by milk run systems. Emphasis was placed on lean-oriented decisions and objectives. This was accomplished conceptually using extensive literature review. The study shows that there is a lack of studies regarding in-plant milk run system as a whole,...
The existing disaster emergency materials management systems are established based on the traditional design mode, the information processing capabilities are limited by the communication control volume of control system, and the asynchronous / synchronous communication and time delay communication are seldom considered. The information sharing and resource integration capability among cities is low...
Radio Frequency Identification (RFID) technology has been widely used in manufacturing sites for supporting the shopfloor management. Huge amount of RFID-enabled production data has been generated. In order to discover invaluable information and knowledge from the RFID big data, it is necessary to cleanse such dataset since there is large number of noises. This paper uses n-dimensional RFID-Cuboids...
This paper provides an overview of current and upcoming requirements for Carrier Logistics and discusses solutions for optimizing the efficiency of capital equipment installed in the fab. An exploration of crucial influencing factors (both on the material handling as well as on the equipment side) will be followed by a discussion of different approaches to the challenges and an assessment of the impact...
Missions outside of Earth's magnetic field are impeded by the presence of radiation from galactic cosmic rays and solar particle events. To overcome this issue, NASA's Advanced Exploration Systems Radiation Works Storm Shelter Team (RadWorks) has been testing different radiation protective habitats to shield against the onset of solar particle event radiation. These habitats have the capability of...
The research based on multi-depot RVRP with road capacity dynamic constraint. Building relevant mathematic model, and brought simulated annealing mechanism into chaos genetic algorithm. The simulated result shows that the proposed algorithm can be applied to solve this problem.
Location problems are often solved by means of optimization. Simulation is often used to test the feasibility of an optimal solution after that the optimal solution is obtained. The test by simulation is done with more dynamic circumstances, introducing stochastic behavior. This research proposes to solve location problems directly in a simulation model, combining an optimization algorithm within...
With information age approaching, for the fierce competition between enterprises, the large-scale machinery plants, such as the coal mine, begin to apply the scientific and lean management with modern technology. The sound layout is instrumental in controlling cost and increasing efficiency, so the managers think highly of the ground and transportation system layout of coal mine, as has become a newer...
Equipment characteristics of civil-military integration precision support are introduced, and the preliminary conception of the domestic Civil-military integration precision support system is put forward. Equipment of Civil-military integration is supported by the support system which has precise construction idea and process of the construction, and the key technologies are discussed and analyzed.
The purpose of this study was to gain greater insights into the habit factors that contribute to one's learning effectiveness. Therefore, present study developed the "Learner's Digest" blog (i.e., a learning blog) with relevant features including information retrieval, user friendly context and learner-learner interaction. It was designed to provide interesting blog posts to facilitate meaningful...
The success of emergency supplies response often needs collaborative cooperation between related emergency departments. Because of its functions on emergency supplies response, the response process can be high efficiency. This paper mainly illustrates the processes of collaborative allocation of emergency supplies under power grid emergency. It is a research on finding out the failure factors which...
An emergency plan contains the constraints of resource and time. However, complexity and changeability of emergency environment could influence these constrains, leading to both time and resource lose. Aimed to meet the needs of executive time constraint, a model of plan adjustment for executive exception in emergency logistics distribution is proposed in this paper. Firstly, executive exceptions...
This work aims to analyze the effect caused by the implementation of logistics automation project in the process of separation uniform refundable in SDAB (Supply Sub Directorate), between the years 2010 and 2012. The research used as the source database of Integrated Supply System (SIA), intended to check the performance of separation before and after implementation of the automation project. The...
A graduate course, APMA 6430 Probability and Statistics for Engineers and Scientists, has been offered by the University of Virginia's School of Engineering and Applied Science since 1985 in both traditional and synchronous distance learning modes. The decision to move to a totally asynchronous delivery mode was made in 2009 and fully implemented in Spring, 2010, based in part on the desire to support...
In our study we apply the principal-agent model to study credit contract proposed by banks to motivate third-party logistics firms (TPL) and consider supervision as an important variable. Our results indicate that when supervision is introduced into contract, TPL can be motivated to work more efficiently. In particular, we give bank' efficient supervision set and bank can be better off by keeping...
In paper are presented main knowledge from the area of logistics, enterprise logistics and production logistics. On the base of theoretical knowledge in second part of the paper are described experiences from the application of logistics and simulation in the area of flexible manufacturing system design. The paper also introduces an example application of logistic flow optimization of a real flexible...
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