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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Fitness, Flexibility, and Suspension: An Aquatics Facility on Washington, D.C.'s Southwest Waterfront

Biesiadny-Mrstik, Michelle Marie 02 July 2004 (has links)
To create a legible building, the structure's form must describe and reinforce the mission of the organization that inhabits it. This proposal for a regional competition, training and recreational aquatics facility demonstrates ideas of physical fitness through an exploration of muscles, cables, tension, joints, and bones. The building is part of a larger urban strategy for redeveloping the Washington Channel waterfront in Southwest Washington, D.C. Early images of transformed beach glass, thread, and basswood generated the inspiration for the basic architectural components: the wall, the columns, and the suspended jewels. The following document gives definition to the basic elements. / Master of Architecture
52

Hardware Application for Rapid Prototyping, Modeling and Validation of Cable-Suspended Robot Systems

Petitt, Cody R. 22 July 2016 (has links)
No description available.
53

Spacecharge, breakdown and lifetime estimation of polyethylene insulation systems

Brown, Matthew Adrian January 2002 (has links)
No description available.
54

X-machine based specification and design for testing of the CATV protocol

Grondoudis, Andreas January 2000 (has links)
No description available.
55

A theoretical and experimental investigation into statics and dynamics of chain cable lifters

Zandiyeh, A. R. K. January 1988 (has links)
No description available.
56

Cable suspended robots control approaches and applications /

Oh, So-Ryeok. January 2006 (has links)
Thesis (Ph.D.)--University of Delaware, 2006. / Principal faculty advisor: Sunil K. Agrawal, Dept. of Mechanical Engineering. Includes bibliographical references.
57

Development of a New High Speed Cable-Based Planar Parallel Manipulator

Sun, Nan Nan January 2012 (has links)
Industrial robots and automation technology have advanced rapidly in the last several decades. New types of manipulators that uses parallel mechanisms are becoming more popular due to their high speed and high stiffness. This thesis focuses on a sub-class of parallel manipulators that uses cables to replace rigid links for further increase in speed. The design strategies in this study were expanded from research works by Khajepour. Behzadipour, and Edmon Chan. This thesis presents analysis and development of a new cable-based planar parallel manipulator that is based on a previous prototype built by Edmon Chan. The new manipulator design added a new rotational DOF to the end-effector, and the number of cables are doubled in order to increase the stiffness. New methods for kinematics and dynamics analysis are formulated to make the procedure more systematic. A new mathematical formulation for stiffness matrix of the end-effector is presented. The resultant stiffness matrix is equivalent to the stiffness matrix formulated by Behzadipour. Additional stiffness analysis is conducted on valid range of stiffness calculation and comparison of different cable configurations. A multi-objective optimization problem is formulated in order to search for the best set of design parameters for the manipulator, and it is solved with an exhaustive complete search method. A physical prototype of the manipulator is modelled and manufactured with the help of partners from Conestoga college. Experiments with the manipulator show that more powerful motors are needed to run the robot at full speed. Motor torque measurements show that the dynamics analysis of the manipulator is valid. Stiffness of the manipulator is measured by applying external force to the end-effector, and it is shown to be strong. The manipulator is able to demonstrate a sort and pick-and-place operation at 60 cycles per minute while running at 70% of the maximum speed, with an acceleration of 2.8 g and velocity of 4 m/s.
58

Dynamic analysis of the cables consider Dynamic analysis of the cables consider sag effect and flexural rigidity

Chen, Wun-Shin 02 September 2005 (has links)
In this paper¡Athe cable structures considering sag effect and flexural rigidity are used to the series of dynamic analysis.It dedatees on vibration of the cables by the harmonic force and win¡Ðrain induced vibration. Using the finite element method to analyze the effect of the sge and the effect of the sag and the flexural rigidity¡Aincluding frequencies of the cable and displacement of every nodes at arbitrarily time.
59

A Study on the Regulation for Convergence of Telecommunication and Cable TV Industries -Sampling European Union

Lin, Jia-Hung 12 June 2001 (has links)
THESIS ABSTRACT A Study on the Regulation for Convergence of Telecommunication and Cable TV Industries -Sampling European Union Audio, video and data are transferred by different channels traditionally. Therefore, there are diverse industries such as telecommunications, cable TV etc. But now the boundary between industries is ambiguous which is affected by technology development. This phenomenon makes it possible that competition exists between different industries. Moreover, it enhances the opportunities of convergence of industries and operation across industries. However conventional regulation defines regulatory scope according to products, services or technology. But changes of technology and market make conventional regulation unsuitable to current environment. Hence we should take a new regulation framework adapted to new market and development. European Union had involved these issues since 1980s and submitted a regulation framework suitable for future situation. Therefore, the researcher describes the roles and functions of relating authorities of E.U. and demonstrates the concrete implementations in response to convergence. Afterward, the researcher analyzes E.U. regulation by two perspectives: regulation authorities and regulation measures. From regulation authority perspective, the roles and attitudes about operation process are observed. From regulation measure perspective, these measures will be analyzed by goal, type and strategic level. Finally, the researcher tries to search for a general regulation framework for Taiwan¡¦s reference. In addition, after Taiwan¡¦s entrance to WTO, the process of negotiation between countries of E.U. could be a reference for Taiwan¡¦s authority to deal with international affairs.
60

Valuation of Cable system operater

Lin, Long-Sheng 07 February 2002 (has links)
none

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