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This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).

Thesis (Ph. D.)--University of Wisconsin, 1965. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).

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In the past decade, society has become increasingly dependent on portable electronic devices that are almost exclusively powered by batteries. The performance and duration of operation of these devices are constrained by the limited energy per unit mass of batteries. Recent advances in the field of energy harvesting have led to the development of efficient and sustainable technologies that are capable of collecting mechanical energy from human motion, and producing the electrical power required to operate portable devices. This thesis focuses on the design and evaluation of a motion-based biomechanical energy harvester that collects energy from the user’s lower limbs. Two lower-limb energy-driven harvesting backpacks, a belt-driven prototype and a gear-driven prototype, were developed. Human treadmill walking testing showed that the belt-driven prototype was able to produce 19.3-12.2W of electrical power with a device efficiency of 34.4-48.4%. The belt-driven prototype had a low metabolic cost of carrying the device, approximately 18W, but had a large metabolic cost of producing electrical power, approximately 188W. This large metabolic cost of energy production is likely a consequence of the large mechanical power required to drive the device, namely to overcome the moment of inertia and the frictional loss of the device. Preliminary testing of the gear-driven prototype showed that the device was able to produce 7-11.2W of electrical power with a device efficiency of 58-78%. A theoretical model was developed that was able to predict the harvester0s electrical power output and the respective load on the user, from a given input motion wave-form. This model was able to predict the peak voltage and peak force with a percent difference of 2% ± 2% and 6.4% ± 4% respectively. Further reduction of the volume, weight, and number of parts of the energy harvester is essential in making the harvester a viable commercial product for powering portable devices. / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2013-08-27 10:46:27.16

Since the Condé Nast Publications launched the first male fashion magazine GQ in Taiwan, Male fashion magazines in Taiwan have been booming for twelve years. No matter a large amount of advertising or increasing circulations, it shows that Male fashion magazines become one of resource of main fashion trades. .It is worth to know that, advertisers play an important role in the proceeding of producing magazine content. The advertisers have a great influence on the magazine content and the message which audience receive. In this research, researcher discusses how do advertisers affect the make-up of magazine to create an atmosphere for their sales growth of products? How do advertisers control the editorial decisions? How do advertisers affect the liberty in editor producing content? And how do advertisers make the commercial message as the magazine content? Two male fashion magazine publishers which can be the best examples among Taiwan male fashion magazines are selected. One is local publisher, another is international one. Researcher used ¡§In-depth interview¡¨ to collect the data for research. Seven stuff were interviewed in the research. Participant Observation is also adopted. The researcher, entered into the organization of the magazine publisher to examine the advertisers how to affect the proceeding of producing magazine content. The result shows that advertisement avenue is the major profit for Taiwan male fashion magazines, around 70% profit from advertisement. In order to maintain advertisement avenue, advertisers ask editors to arrange their commercial next to the content. By doing this, publishers create an atmosphere of sale products for advertisers to attractive more costumers. In addition, editors place a lot of products in the magazines for meeting advertisers¡¦ requirements to earn more profits. With the growing of produce placement, commercial message is turning into the content of magazine gradually. Moreover, advertisers use ¡§Invisible way¡¨ to affect how to edit the magazine content . ¡§Invisible way¡¨ means that advertisers pay editors for producing commercial content. This producing way make readers believe that the content is providing the c information which readers need; however, this content actually is a part of advertisements. Advertisers need a page of magazine for promoting product, and magazine publishers need financial support from advertisers. This interrelationship makes editors produce magazine content for advertisers. Therefore, magazine become a tool of advertisers promote product. In the proceeding of production of female fashion magazine, Earnshaw(1984¡^found out that female fashion magazines become a catalogue, and this research provide the further evidence that Taiwan male fashion magazines are the same in these days. In addition, it reflects that the ranks of sartorially self-aware males are growing compared to the past years.

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