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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.
291

The Impacts of Business Fluctuations on Credit Rationing and Mechanism Design for Equilibrium in the Credit Markets

Liu, Ming-yi 24 August 2004 (has links)
none
292

Design and Manufacture of a Cam Type Linear Actuator

Tsai, Meng-Che 02 September 2004 (has links)
The drawbacks of the mechanical linear actuator which is applied to punch flexible printed circuit boards(FPCBs), are many components involved, low transmission efficient, and high proportion of energy consumption. In order to design and manufacture a device that can generate a rapid and high quality punching processes, the fundamental rules that can be followed are to use few parts with light weight design, good working piece, energy conserved, and perfect efficient. To improve the kinematic and dynamic characteristics of the existing mechanism, design, manufacture, and assessment are to be taken for developing new linear actuated mechanisms. The first step is to analyze the performance of the existing linkage actuator . The second step is to design a over-head cam mechanism of non-constant rotational speed to substitute the pulley and the rock arm according to the design specifications. The performance of the new type actuated device is superior to the existing mechanism, and this research had preliminary verified the viewpoint of the energy in high speed punching. The achievements of this research also provide references for linear actuator designers and high speed punching producers.
293

none

Liu, Te-Jen 12 October 2004 (has links)
none
294

Performance Comparison of Online Group-Buying with Different Pricing Mechanisms from the Viewpoint of Perceived Risk

Chueh, Chih-hsun 05 July 2005 (has links)
In the group-buying transaction, consumers will not know the final price until the transaction is closed. It means that there are uncertainties of the final price and time to reach a desired price. In other words, consumers have financial risk and time risk in group-buying transactions. In addition, different pricing strategies of group-buying may result in different risks. The purpose of this study is to investigate how the perceived risks of consumers affect their intentions to participate the online group-buying with different pricing mechanisms, i.e. decreasing, neutral and increasing. The result shows that because group-buying models with different pricing mechanisms have different initial prices, final prices and discounts, the risks perceived by consumers are different and then, affect consumers¡¦ intention to participate the online group-buying. Among these three pricing mechanisms, decreasing pricing mechanism makes consumers perceive higher risk than other pricing mechanisms because its initial price is higher. The more the consumers¡¦ perceived risks are, the lower the consumers¡¦ intentions to participate the online group-buying are. Therefore, group-buying with decreasing pricing mechanism can not attract consumers to join the online group-buying efficiently. Furthermore, this study finds that perceived usefulness and satisfaction affect consumers¡¦ intentions to participate the online group-buying significantly. In addition, all consumers¡¦ perceived risks, perceived usefulness and intentions to participate online group-buying influence consumers¡¦ actual participating behavior significantly.
295

Relationship Among Ethical Mechanism, Ethical Climate and Ethical Behavior - Wealth Management Specialists in Financial Business

Tsai, Hui-chen 04 September 2006 (has links)
Abstract Ethical mechanism is generated by taking ethical perception into business organization policy; ethical climate is developed by the application of ethical mechanism in business organization operation; and ethical behavior is created by ethical climate within an organization. Therefore, ethical mechanism, ethical climate and ethical behavior are closely related, and profoundly affect the operation and development of a business organization. This thesis is to study the relationship among ethical mechanism, ethical climate and ethical behavior within organization levels and cross-levels. The wealth management specialists working at 32 banks and 4 stock trading companies are the main object of this study, and the analysis demonstrated in this thesis is based on 36 questionnaires collected from managers and 298 questionnaires from practitioners. On organizational level, the study focuses on how ethics mechanism influences the formation of ethical climate. On cross-level, the effect of ethical climate on staff¡¦s ethical behavior is thoroughly studied. 1. In general, financial business adopts seven ethical mechanisms, which are code of ethics, rewards and punishments, promotion, ethics committee, audit system, employee selection and ethics training. 2. There are four types of ethical climate existent in financial business, which are compliance of regulations, employee caring, independent thinking, and personal interest. 3. There are three structures of ethical behavior, which are honesty, integrity, and obedience. 4. The Effect of Ethical Climate on Ethical Mechanism l The implementation of ethical mechanism such as code of ethics, ethics committee and audit are greatly beneficial to the formation of ethical climate of employee¡¦s compliance of regulations. l The implementation of audit for ethical mechanism is helpful for the formation of ethical climate of compliance of regulations and independent thinking. l Employee selection and ethics training rarely affect the formation of ethical climate of compliance of regulations, employee caring and independent thinking. l The ethical climate of personal interest is suppressed by the implementation of open and fair promotion. l Of all ethical mechanisms, promotion is the only one that affects the ethical climate of personal interest. 5. The Effect of Employee¡¦s Ethical Behavior on Ethical Climate l The ethical climate of compliance of regulations can upgrade employee¡¦s ethical behavior of honesty, integrity, and obedience. l The ethical climate of employee caring is helpful for employee¡¦s ethical behavior of integrity, and obedience. l The ethical climate of independent thinking directly affects the ethical behavior of obedience. l The ethical climate of personal interest is irrelevant to the employee¡¦s ethical behavior. l In all, the more emphasis laid on ethical climate, the more ethical behavior of obedience. Key word: ethical mechanism, ethical climate, ethical behavior
296

Design of Linkage-Type Chassis Mechanism for Six-wheel Power Wheelchairs

Chiu, Chuang-xun 17 August 2006 (has links)
Wheelchairs are the most important mobility-aided device for those who cannot walk independently with moderate or severe physical disabilities, the elder, and the person with chronic diseases in their daily activities. Six-wheel Power Wheelchair has great functions, such as large sphere of actions, has the good capability of traversing step obstacles, great stability, and small radius of gyration. A good chassis mechanism should provide the following characteristics including good support, high stability, easy steering, high comfort for rider, and has the capability of traversing step obstacles. Therefore, the purpose of this paper is to develop the basic theories of analysis and design of six-link chassis mechanism of power wheelchairs, and produce the prototype of some novel chassis mechanisms. First, the kinematic analysis of six-link chassis mechanisms will be derived, and then a computer program will be developed. Next, the structures of six-link chassis mechanisms will be synthesized according to the creative design methodology of mechanism proposed by C. H. Hsu. Then, the structural and kinematic characteristics of chassis mechanisms proposed in patent documentation will be investigated and clarify. The optimization theory will be used to develop a feasible designing program such that the dimensions of the chassis mechanism can be determined. Finally, The results of this designs presents the three-dimension graph. The results of this paper will provide a complete theory for the systematic design of six-link chassis mechanisms for power wheelchairs, and will promote the design competency of the domestic industrial circle.
297

Design of Steering Mechanisms of All-Terrain Vehicles

Chang, Ming-Chu 19 June 2001 (has links)
All-Terrain Vehicles, usually called ATVs, are a popular product in the leisure sport market. The steering mechanisms is one of the important components of ATVs to obtain better maneuverability. The purpose of this work is to develop a systematic design procedure for the steering mechanisms of ATVs. First, the particularities and the requirements of ATVs are investigated to induce the basic characteristics. Second, to carry out the creative design of steering mechanisms by using the systematic procedure of creative mechanism design. Third, to deduce the analytic theory of angle displacement, torque and stability for the design of steering mechanisms. Then a computer aided analysis program are written. Finally, to establish the quantitative design specification of the steering mechanisms of ATVs. Then the dimension synthesis and the steering mechanism to integrate with body of ATVs are illustrated with an example.
298

A Study on the dynamic Behavior of the Roller Gear Cam System Using Different Torque Compensation Mechanisms

Hu, Chin-Che 01 July 2001 (has links)
Roller Gear Cam mechanism¡]RGC¡^has been used widely in different automation mechanisms and all kinds of orientation mechanism. High speed and high accuracy of the RGC system is a tendency in high production automation. The interaction between the driving speed and torque of a high speed RGC system is investigated in this work. The effect of adding a torque compensation cam¡]TCC¡^on the improving of indexing precision of a RGC system is investigated in this thesis. The dynamic responses of a RGC system driven by a DC motor are conducted. Dynamic equations of the intermittent- motion of a RGC driven system are derived by using the Lagrange¡¦s equation with the assumption of dual-stiffness. Furthermore, the effect of adding a torque compensation mechanism¡]TCM¡^ such as torque compensation cam¡]TCC¡^ or idle wheel on the improving of indexing precision of a RGC system is investigated in this work. The sixth order Runge-Kutta iteration method is employed in the system¡¦s responses simulation. Variations of the driving torque, driving speed and residual vibration of a RGC system with different torque compensation devices are analyzed in this research. The simulated and measured results indicate that a RGC system attached with a TCC can improve its speed and torque fluctuation at the designed speed significantly. However, this compensation effect is quite sensitive to the driving speed. On the contrary, the compensation effect introduced by using an idle wheel is not so sensitive to the speed as the TCC does. The low cost and easy design are also the favorable factors for using an idle wheel to instead of an expensive TCC device.
299

Design of A Multi-Speed Manual Recreational Wheelchair

Lin, Anchi 04 July 2001 (has links)
The wheelchair is an auxiliary tool for people who have defective legs. In comparison with the power wheelchair, the manual wheelchair has the advantage of low price and easy carrying. The regular, standard manual wheelchair is only suitable for residential environment and short-distance movement, and it¡¦s unsuitable for outdoor recreation and long-distance movement. The purpose of this study is to develop the manual wheelchair for outdoor recreation and long-distance movement, so that the users can expand their living space beyond the residential areas. In order to enhance the efficiency of propulsion for manual wheelchairs, a systematic designing method for propulsive mechanisms is proposed in this study in which the propulsive way of the traditional manual wheelchair is replaced by propelling the propulsive mechanism. In order to let the wheelchair be adapted to all kinds of environments, the multi-speed drive hub is applied to the manual wheelchair to enhance the users¡¦ force with more flexibility. In addition, this study also designs and manufactures a wheelchair to test the functions. The results of the test are then recorded and examined to provide the references for the future design.
300

Self-Regulation Mechanisms in the Practice of Information Privacy

Lin, Hsing-Tzu 21 June 2003 (has links)
Today, many privacy abuses can be traced to the lack of organization policies governing the conduct of the personnel who are in charge of managing the information systems. IT professionals, who are the most important gatekeepers to the information privacy practices, have the oversight responsibility for information privacy since they have the most extensive knowledge of their organization¡¦s systems and data. In this research, we have studied the impact of managerial policies concerning ethical codes and rewards/penalty perception on IS professionals¡¦ self-regulation capacity against privacy abuses. Specificially, based upon the Moment-of-Truth model and paradigm of self-regulation, we investigated how IS professionals¡¦ ethical judgment, subjective norm, privacy self-efficacy and intention may reciprocally interact with their business environment that was characterized by its use of ethical codes and the rewards/penalty system. We first proposed an ethical dicision model based on the paradigm of self-regulation and validated the appropriateness of this model for studying information privacy. We then demonstrated how the perception of the rewards/penalty may impact the ethical judgment, subjective norm, privacy self-efficay, and ethical intention. We discovered that the rewards/penalty perception had a moderating effect on the relationship between ethical judgment and intention, and that the ethical codes had the moderating effect on the relationship between privacy self-efficacy and intention.

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