The statewide transportation improvement program (STIP), a three-year programming document required by federal regulations, has been prepared by the Virginia highway agency as an abridgement of its six-year program (S...
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The statewide transportation improvement program (STIP), a three-year programming document required by federal regulations, has been prepared by the Virginia highway agency as an abridgement of its six-year program (SYTP),which is required by state regulations. Generation of the STIP from the SYTP has been determined to not meet federal requirements. The innovation of this effort is the application of business process modeling to improve hierarchical integration of federal and state transportation programming using the IDEF format. Describing the statewide and federal program processes using the IDEF standards has several benefits. The high-level outputs of software models are charts with underlying characteristics of activities (inputs, controls, mechanisms, and outputs). IDEF models support the business analyst to describe the statewide and federal programs and other processes consistently. Use of the IDEF standards for process improvement may evolve to be a common practice across the agency
To help programmers debug visual programs, we propose an animated execution method with supporting functions to be used with the animated execution. The animated execution animates state transitions as the program is ...
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To help programmers debug visual programs, we propose an animated execution method with supporting functions to be used with the animated execution. The animated execution animates state transitions as the program is executed. To make it easy for the programmer to interpret the animation, it is displayed in a manner similar to the visual program. The functions are used to narrow the possible locations of bugs and to test fixed components quickly. We have implemented animated execution and the functions on 3D-PP, our three-dimensional visual programming system.
STARS (Students, Teachers and Resources in the Sciences) is a National Science Foundation GK-12 funded project whose objective is to foster systemic change in elementary curricula and enrich math, science and long-ter...
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STARS (Students, Teachers and Resources in the Sciences) is a National Science Foundation GK-12 funded project whose objective is to foster systemic change in elementary curricula and enrich math, science and long-term professional development of teachers. The program aims to decrease the current educational gap in science and math present in schools within the same school district, as reflected in the Florida comprehensive assessment test (FCAT). One challenging task is the development of new and innovative modules that introduce advanced science and engineering concepts to third, fourth and fifth grade students from diverse backgrounds. The modules have been designed by graduate fellows (resources) with knowledge in science, engineering, math and technology. This paper discusses the methodology for module development, formatting and design of the lessons, and implementation in the classroom. A discussion regarding the modules from the viewpoint of teachers, students and fellows is also provided.
Several institutional frameworks were enacted by jurisdictions in Japan, which were intended to provide some type of economic aid (compensation) to households that are deprived of their dwellings by natural disaster a...
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Several institutional frameworks were enacted by jurisdictions in Japan, which were intended to provide some type of economic aid (compensation) to households that are deprived of their dwellings by natural disaster and intend to reconstruct and/or rent a house in the damaged region. In this work a dynamic model is formulated to investigate house-owners and tenants' housing choice after their dwellings are destroyed by an earthquake as well as owners' insurance behavior before the earthquake. The study analyzes the effects of the subsidy for reconstruction and/or lease (compensation) on the housing market in the damaged region. It is found that the compensation motivates damaged households to reconstruct and/or rent a house in the damaged region and consequently prevents households from flowing out of its region, while insurance has neutral effect on housing choice.
Information technology is providing manufacturers with additional flexibility with regard to their supply chain network choices. Our research studies supply chain network organization structures categorized by the org...
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Information technology is providing manufacturers with additional flexibility with regard to their supply chain network choices. Our research studies supply chain network organization structures categorized by the organic and mechanistic management control structures. The structural impacts on cost and fill rate performance are studied in two-echelon and two-supply-chain network organization models under different market coordination conditions using system dynamic simulations. Our results show significant effects of demand and network structural factors, and their interactions, on these measures. As demand becomes dynamic, the cooperative interaction model, where supply chains cooperate to satisfy customer demand, is found to have better system performance than the competitive supply chain model. The analysis also suggests that increasing the responsiveness at the downstream plant is particularly important to the overall system performance improvement. [PUBLICATION ABSTRACT]
The Qualitative Simulation Graph Methodology (QSGM) is well suited to address the program Evaluation and Review Technique (PERT) scheduling-with-resources problem. In QSGM, all possible scenarios are characterized in ...
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The Qualitative Simulation Graph Methodology (QSGM) is well suited to address the program Evaluation and Review Technique (PERT) scheduling-with-resources problem. In QSGM, all possible scenarios are characterized in the problem. This is called the coverage property. The coverage property of QSGM has two important implications for the PERT scheduling problem. First, it means that all possible schedules are represented. Second, it means that the model can characterize all possible outcomes of a decision that needs to be made in the schedule. This gives rise to the possibility of robust scheduling decisions without the need to rerun the schedule because actual activity durations differ from estimated activity durations.
Information and computer security is a topic that has grown significantly in popularity in the last few years. With the increased level of funding for IT security research, and the support of information assurance edu...
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ISBN:
(纸本)1595930485
Information and computer security is a topic that has grown significantly in popularity in the last few years. With the increased level of funding for IT security research, and the support of information assurance education through the Information Assurance Scholarship program (IASP) and the Scholarship for Service (SFS) program, information assurance education is enjoying a great period of growth in the U.S. Mississippi State University has embraced these programs and is responding with a slate of new information security courses designed to prepare students to serve as security engineers in either government service or in private industry. Copyright 2005 ACM.
Because conventional switching converters are usually using unbalanced circuit topologies, parasitic capacitance between the drain of an MOS-FET and the frame ground through its heat sink may generate the common-mode ...
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Because conventional switching converters are usually using unbalanced circuit topologies, parasitic capacitance between the drain of an MOS-FET and the frame ground through its heat sink may generate the common-mode conducted noise. We proposed a concept of balanced switching converter circuit, which is an effective way to reduce the common-mode conducted noise of a switching converter by current cancellation. In this paper, the path of the noise current in a balanced buck-boost converter circuit is investigated using a current probe. By measuring current waveforms and frequency spectra of the parasitic capacitances and the frame ground line, the mechanism of the common-mode noise reduction by current cancellation is clarified.
In case of emergency, we need to grasp the situation and make correct assessment quickly. The video data taken from monitoring cameras are important information in the emergent situation. In our research, we built a s...
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In case of emergency, we need to grasp the situation and make correct assessment quickly. The video data taken from monitoring cameras are important information in the emergent situation. In our research, we built a support system for identifying video data of monitoring cameras. The system collects video data from the net-cameras through the Internet and deals with them as spatiotemporal data. To search video data, we proposed an intuitive search method for users. In the method, we assume a virtual wall in the city. This method allows users to search for the video data, which is recorded during a period, and records a virtual wall in a certain direction. The users set the above search-key on the map, and it will be transformed to the search-key for the spatiotemporal access structure to proceed the search. When the system shows the search result, the video data, which is easy to understand the whole scene, will be displayed first. As the horizontal direction of the screen corresponds to the virtual wall's direction in the real world, the user can narrow down the search result in the horizontal direction of the screen. We built a prototype in Java, Javaservlet and C++.
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