Six questions are posed that are likely to be of interest to one considering applying the dual heuristic programming (DHP) methodology. Tentative answers to these questions are provided in the last section of the pape...
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Six questions are posed that are likely to be of interest to one considering applying the dual heuristic programming (DHP) methodology. Tentative answers to these questions are provided in the last section of the paper. As a basis for these, the paper first describes observations made from a series of explorations into various aspects of using the DHP method to design the controller for the pole-cart benchmark problem. Parameters of the explorations included training gains, plant parameter variations, fidelity of plant model, controller sampling rates, network architectures, training strategies, and generalization tests.
First, we will describe the concept and implementation issues of our "Dynamically Extendible Museum", a system which enables the users to create their favorite virtual spaces dynamically and incrementally fr...
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First, we will describe the concept and implementation issues of our "Dynamically Extendible Museum", a system which enables the users to create their favorite virtual spaces dynamically and incrementally from databases in order to present the objects retrieved by the user's queries. Second, we propose a mechanism to incrementally formulate user's query by letting the user select objects in a virtual space. We also discuss implementation issues of our prototype systems using museum metaphors to demonstrate our ideas.
The ultimate goal of the RoboCup Initiative is to build a humanoid soccer team which beats a human World Cup Champion team. In this paper, we presents reasons why this goal should be pursued, and analyze technical iss...
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The ultimate goal of the RoboCup Initiative is to build a humanoid soccer team which beats a human World Cup Champion team. In this paper, we presents reasons why this goal should be pursued, and analyze technical issues involved in, humanoid to play soccer game. The analysis demonstrates the breadth of technologies that need to be developed through the course of the Challenge, which has major impacts to industries in general.
Through a detailed Research and Development program, the U.S. Navy has developed a suite of shipboard solid waste management equipment enabling compliance with federal and international law. Four major equipment types...
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Through a detailed Research and Development program, the U.S. Navy has developed a suite of shipboard solid waste management equipment enabling compliance with federal and international law. Four major equipment types have been developed to outfit twenty-seven classes of naval surface ships. The major equipment types are: Plastic Waste Processor (PWP), Metal/Glass Shredder (MGS), Large Pulper (LP), and Small Pulper (SP). The Navy is aggressively procuring and installing this equipment aboard all ships of FFG 7 Class and larger. A deadline of December 31, 2000 has been set for completion. engineering analysis and held waste generation studies were conducted to select the specific equipment suite and develop alteration documentation for each ship class. Specific factors in this process were: solid waste generation rates, equipment reliability analysis, ship arrangement considerations, daily equipment operation Limits, and shipboard quality of life issues. A solid waste management study was conducted in the fall of 1997 to validate Navy equipment and ship design parameters onboard the USS John C. Stennis (CVN 74). Generation rates for shipboard solid waste were determined for plastic, metal and glass, food, paper, cardboard, fabric and wood. engineering analysis of data allowed a decrease in CVN 68 Class design waste generation rates. engineering analysis enabled a reduction in the number of PWPs and MGSs required, and fewer spaces for efficient operation. Ship arrangement studies were conducted to optimize efficiency and equipment mix of Solid Waste Processing Rooms (SWPRs) relative to waste generation sites. This paper briefly articulates the process followed by the Navy in responding to regulations governing solid waste management in the marine environment. Evidence validating the engineering procedures followed is presented.
作者：
Wu, BCYoung, GSSchmidt, WChoppella, KDr. Bi-Chu Wu:received a PhD in Mechanical Engineering from the University of Maryland
College Park in 1991. She has worked on projects involving naval architecture design optimization solid mechanics and database development. Presently a senwr engineer with Angle Incorporated Dr Wu's research interests are in design optimization and fuzzy logic applications. Dr. Gin-Shu Young:
a senior engineer with Angle Incorporated holds a PhD in Mechanical Engineering from the University of Maryland College Park. As a guest researcher with National Institute of Standards and Technologies from 1990 to 1993 he worked on vision-based navigation for autonomous vehicles. His experience also includes applications of optimization fuzzy logic neural network and genetic algorithm methods to engineering system design Mr. William Schmidt:co-founded Angle Incorporated in 1990 and has served as Vice PresidentlChiefScientist during this tame. He holds a B.Sc. in Applied Science from the Naval Acadt?my and an M.Sc. in Physics from the Naval Post Graduate School. He has cner 20 years experience in technical leadership
material and personnel management. He has led the application of computer aided design (CAD) and Product Model Information Exchange to the shipbuilding industry. His experience also includes leading the amlication of model based operational analysis to support the Live Fire Test Program for DDG 51 Class Destroyers. Mr. Krishna M. Choppella:is a Sofware Engineer at Eidea Laboratories
Incotporated where he works on componentbased distributed enterpvise frameworks. He has been involved in creating data analysis tools for the US Nay by integrating CAD modeis databases and graphical front ends. His work in the Masters degree program in Mechanical Engineering at the University of Texas at Austin was in di0ddase.r spectroscopy of combustion products in porous-matri burners. He received his Bachelors degree in Electrical Engineering in India. He was a Research Associate at the Centre for Laser Technology and Project Engi
Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive asse...
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Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive assertions. This paper describes a method based on fuzzy functions and an integrated performance index to model O/C using descriptive assertions to be used with mathematical formulas in optimization. Another issue addressed in this paper concerns the coordination of design elements when sequentially coupled, that is, when one leads the other and the performance of the follower depends greatly on the design of the leader. Based on neuro-fuzzy techniques, the method described here coordinates and optimizes sequentially coupled elements. The two methods are applied to machinery arrangement (MA) and pipe routing (PR). Preliminary models for optimization of MA and PR are described considering convenience, producibility: engine room size, interference and location as factors in the O/C set. Some test results from MA/PR applications are presented and discussed. The methods are generic and can be extended to other elements in ship design. They are mutually independent and may be used separately Two advantages of their use are an improvement in overall performance and a reduction in the need for redesign of elements.
A new token-passing mechanism, priority taken passing, which features real-time access and fast detection and recovery of transmission errors, is discussed in detail in comparison with standard token-passing protocols...
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A new token-passing mechanism, priority taken passing, which features real-time access and fast detection and recovery of transmission errors, is discussed in detail in comparison with standard token-passing protocols, and its large-scale integration (LSI)-oriented design concept is described, Priority token passing includes only a small performance overhead, due to its switching functions, which can change network topology from ring to broadcast medium, A token-holding node passes the token to another node after determining the successor through priority comparison, Errors occurring during token passing can, thus, be detected and corrected simply and promptly, Priority token passing has a simple hardware implementation, requiring only small additions to the frame control circuitry, and has a small implementation overhead, The priority token-passing protocol and two other important network communication functions, dual ring network reconfiguration and high-level data link control (HDLC) normal response mode-based message transmission,are designed as a single finite-state machine, and implemented into a compact LSI chip, This integrated instrument network (IINET) chip provides complete network communication services and requires only three additional external electronic components for operation.
作者：
Nehaniv, Chrystopher L.Knowledge Engineering
Cybernetics and Software Systems Group Graduate School of Computer Science and Engineering University of Aizu Fukushima Aizu-Wakamatsu City965-80 Japan
Biological systems exist under circumstances of irreversibility that make them fundamentally different from inanimate matter (distinguishing them for instance as subject to development, damage and death). Individual h...
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