24,870 research outputs found

    MODELING PRACTICE Immersive Design Methodologies

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    Modeling Practice is centered around an immersive methodology that connects the architect to the process of making. The value of reflection and a consciousness of methodology are intrinsic layers of thought throughout. The act of building influences the process of design. The experience of creating is as important as the final result. The practice of creating architecture comes with a range of limitations, notably a disconnection from the building process, and in many cases an insubstantial amount of time to interact with the site and surroundings in which the project is located. Throughout many years of working in the profession, the awareness of these particular hindrances to practicing architecture in a fully engaged and fulfilling manner have become prevalent. Prior to the pursuit of an advanced education in architecture, the commencement of a separate, slower endeavor to build a home sparked ideas that lead to the alternative methods of operating that this study investigates. Modeling Practice sets up an immersive methodology that connects the architect to the process of making and building while utilizing a unique studio environment and a site that has been explored, transformed, and reflected upon by the architect over the last seven years. Practice in this manner can be described as unmediated, as there are no time limits of construction, no clients to contend with, and no outside contractors; each decision is made by the architect, and each act of the process is either performed by the architect or directly under the architect’s supervision. The role of the architect is rewritten. The architect investigates, designs, and constructs. The architect is immersed in the site and in the process of creating architecture

    A computer simulator for development of engineering system design methodologies

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    A computer program designed to simulate and improve engineering system design methodology is described. The simulator mimics the qualitative behavior and data couplings occurring among the subsystems of a complex engineering system. It eliminates the engineering analyses in the subsystems by replacing them with judiciously chosen analytical functions. With the cost of analysis eliminated, the simulator is used for experimentation with a large variety of candidate algorithms for multilevel design optimization to choose the best ones for the actual application. Thus, the simulator serves as a development tool for multilevel design optimization strategy. The simulator concept, implementation, and status are described and illustrated with examples

    Design methodologies for automotive steel wheels

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    L'abstract è presente nell'allegato / the abstract is in the attachmen

    Some recent asynchronous system design methodologies

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    Journal ArticleWe present an in-depth study of some techniques for asynchronous system design, analysis, and verification. After defining basic terminology, we take one simple example - a four-phase t o two-phase converter - and present its design using (a) classical flow-tables; (b) Signal Transition Graphs of [8]; and (c) Trace Theory of [15]. We then present necessary and sufficient conditions for Delay Insensitivity, proposed by [38], and illustrate it on our example. Finally, we present the work of [13] on the verification of asynchronous circuits, and illustrate it on the circuits derived in the paper. The following points are emphasized: (i) presentation of techniques at more depth than in a general survey; (ii) illustration of all t h e aspects discussed on a common example; (hi) comparative study of the works presented. Many interesting works had to be left out, solely because of our lack of space and time

    Asynchronous circuit simulation and design methodologies

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    The purpose of this thesis is to examine asynchronous design as a possible alternative to synchronous design. Asynchronous design promises better power consumption and higher performance. In this thesis an asynchronous simulator capable of predicting asynchronous system performance is designed. The simulator is based on a probabilistic event driven model of asynchronous elements. The simulator is performance oriented only, and thus is not capable of functional simulation or verification. It provides a highly abstract view of the system. Using the simulator several design methodologies were inspected and simulated for their performance. Particular attention is paid to differences between synchronous and asynchronous methodologies. In addition several current sensor techniques were examined as a possible way of implementing asynchronous circuit completion detection. The contribution of this thesis is definition of the reasons why the current sensing is not a feasible way for completion detection, and the ability to predict the asynchronous system behavior on an architectural level

    Applications of different design methodologies in navigation systems and development at JPL

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    The NASA/JPL deep space navigation system consists of a complex array of measurement systems, data processing systems, and support facilities, with components located both on the ground and on-board interplanetary spacecraft. From its beginings nearly 30 years ago, this system has steadily evolved and grown to meet the demands for ever-increasing navigation accuracy placed on it by a succession of unmanned planetary missions. Principal characteristics of this system are its capabilities and great complexity. Three examples in the design and development of interplanetary space navigation systems are examined in order to make a brief assessment of the usefulness of three basic design theories, known as normative, rational, and heuristic. Evaluation of the examples indicates that a heuristic approach, coupled with rational-based mathematical and computational analysis methods, is used most often in problems such as orbit determination strategy development and mission navigation system design, while normative methods have seen only limited use is such applications as the development of large software systems and in the design of certain operational navigation subsystems

    Rapid analysis & design methodologies of High-Frequency LCLC Resonant Inverter as Electrodeless Fluorescent Lamp Ballast

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    The papers presents methodologies for the analysis of 4th-order LCLC resonant power converters operating at 2.63 MHz as fluorescent lamp ballasts, where high frequency operation facilitates capacitive discharge into the tube, with near resonance operation at high load quality factor enabling high efficiency. State-variable dynamic descriptions of the converter are employed to rapidly determine the steady-state cyclic behaviour of the ballast during nominal operation. Simulation and experimental measurements from a prototype ballast circuit driving a 60 cm, 8W T5 fluorescent lamp are also included

    Design methodologies for product oriented manufacturing systems

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    This paper presents a review of design methodologies for production systems, with focus on Product Oriented Manufacturing Systems (POMS). POMS organization is discussed and compared against production systems concepts. The methodologies are described and grouped in three classes: generic, specific and focused, if they provide a generic solution like a product, a tool or a system; only one type of solution, e.g., a production system or guides through a implementation of a particular instance of a production system, e.g., Toyota Production System implementation. The focused class of the methodologies is also divided in two groups: methodologies for designing new production systems, referred as construction methodologies for production systems, and methodologies for reengineering existing systems, referred as improvement methodologies. A better grasp of production systems design needs is given through a brief introduction to the GCD design methodology developed by the authors. Moreover the GCD methodology is put in perspective showing differences and design suitability in relation to the reviewed methodologies
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