Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 39 for “"CAD-System"”.
-
Expert system for machinability data integrated with a CAD system
This work defines an expert machinability data system integrated with a CAD system, for computing complete machining parameters required for further processing with NC software. The main objective is to move toward the concept of a fully computerized system, from design to the generation of NC code …
-
Development of a CAD system for automated conceptual design of supersonic aitcraft
Development of a conceptual aircraft design system based on ACSYNT, an aircraft synthesis program written by the NASA Ames Research Center; is discussed. The system, named ACSYNT/VPI, was written using the PHIGS graphics standard for machine independence and designed based on top·down principles …
-
An investigation and evaluation into the 'usibility' of human-computer interfaces using a typical CAD system
… be evaluated in commercial software. A prototype system was developed with the collaboration of FEMVIEW Ltd. (marketing a CAD package). Proposals for future research using the prototype system suggests the need for field trials to assess its usefulness in a working environment and to gain insights …
-
Applying human-computer interaction methodologies to the development of computer-aided design software
… of usability studies on computer-aided design (CAD) systems has prompted three questions: (1) Is usability testing different for CAD systems than conventional software? (2) What role does domain expertise play in the use of CAD software since most CAD applications are not simple tasks? (3) How …
-
SVM-based Harris Corner Detection to Classify Normal/Abnormal Breast Mammogram Images
… materials of the Computer-Aided Diagnosis (CAD) system to support diagnosis of breast cancer. In the CAD system, intensity value is a widely used feature for medical image processing. Classification of the breast mammogram image as normal or abnormal class is important, since it supports the …
-
An Evaluation of Performance and Transfer of Perspective Drawing Techniques Acquired Utilizing Computer-Aided Design Versus Paper and Pencil
… drawing using either a Computer Aided Design (CAD) system or traditional paper and pencil as their design tools. Using a two group, multiple comparison design the following research questions were answered: Is the accuracy or efficiency of the perspective drawing process improved over time? Is …
-
The development of an educational computer aided design system for garment manufacture
A computer aided design (CAD) system for the design of flat patterns for female clothing has been developed specifically for use in an Educational environment. This Pattern Making System (PMS) has been developed using a commercial computer aided design software system, CADDS 4X, originally marketed …
-
Studie zur klinischen Wertigkeit des CAD-Systems in der digitalen Vollfeldmammographie in Abhängigkeit von der Erfahrung des Befunders
… die Anwendung des computerassistierten Diagnosesystems, der Ausbildungsstand der Befunder und das jeweilige Patientenkollektiv auf die Befundungszeit, Trefferquote und Anzahl der falsch-positiven sowie falsch-negativen Markierungen von Mammographieaufnahmen haben. Das Patientenkollektiv bestand …
-
Automated CAD Model Generation for Structural Optimisation
Computer-aided design (CAD) models play a crucial role in the design, manufacturing and maintenance of products. Therefore, the mesh-based finite element descriptions common in structural optimisation must be first translated into CAD models. Currently, this translation either can be performed …
-
iSMILE: An integrated system for device model design, parameter extraction, and circuit simulation
An important bottleneck faced in the use of CAD tools such as a circuit simulator and a parameter extractor to explore new device technology lies in the time-consuming process of developing and verifying new models. In this thesis, a novel CAD system which integrates device model design, circuit …
-
Design and implementation of three-dimensional logic structures
In this thesis, a computer-aided-design (CAD) system is developed that assists in the design of novel three-dimensional integrated circuits. The software tools allow for the specification of a multilayer transistor circuit by means that are readily accessible to those familiar with two-dimensional …
-
Integrated Design of Complex Mechanical Products Considering Modeling, Simulation and Optimization Aspects
The presently developed computer-based design systems are not effective for design of complex mechanical products when multiple tools and methods in different schemes have to be employed at different design stages. In this research, a new integrated framework has been introduced for the design of …
-
Computer aided design of a switched reluctance motor
… and to reduce the cost. Computer Aided Design (CAD) helps to meet this challenge both in the design evaluation and product design stages. This thesis contains the development of an interactive software for the optimal design of a motor intended for variable speed applications. The use of finite …
-
Integration of computer aided design (CAD) technology in apparel design curricula
… study were to assess student attitudes toward CAD technology and use, to determine the efficient use of computer-aided design (CAD) systems in the design curriculum, and to investigate the current use of CAD at other colleges and universities in the United States with apparel design programs. A …
-
Intersection and filleting of non-uniform B-spline surfaces
… the design and creation of an interactive CAD system which converts the geometry descriptions commonly used in conceptual aircraft design codes to descriptions that meet the requirements of preliminary design systems. In particular, the conversion of ACSYNT Hermite surface data of aircraft …
-
Computer-aided design of tension structures
… made it possible to develop a fully interactive CAD system for tension structures. The development of such a CAD system is the subject of discussion in chapter 7. The CAD system integrates together the form-finding, load analysis and fabrication patterning stages, resulting in a continuous design …
-
A hierarchical approach to effective test generation for VHDL behavioral models
… for a VHDL behavioral model is proposed. A system is presented to evaluate the quality of the test sequence generated by the algorithm. Test sequences and coverage results are given for several models. Some suggestions for future improvements to the tools are made. The HBTG forms part of a …
-
Visualization tools for SpecTRM
SpecTRM is a CAD system for digital automation. The intent of SpecTRM is to assist engineers in managing the requirements, design and evolution process aspects of developing software. The purpose of this thesis project is to extend SpecTRM even further through the development of visualization …
-
CAD as a tool in urban design : a study in reunited Germany
… to define and develop this relationship. The system in situ is barely able to manage all the information concerning the design as well as the erection process. This thesis is an attempt to organize all available information on an urban scale using a CAD system and develop a design strategy to …
-
Bio-Surfaces and Geometric References for a Standardized Biomechanical Design Methodology for Mass Customization
… implementation of these mating conditions in a CAD system.
Page 1 of 2