Global ETD Search

11	Singing Sinophone : a case study of Teresa Teng, Leehom Wang, and Jay Chou Lee, Lorin Ann 18 July 2012 (has links) This thesis provides an initial inquiry into the acoustics of Chinese identity, or Chineseness, in the emerging studies of Sinophone and Sinophonicity through the study of three well-known Sinophone musicians -- Teresa Teng, Leehom Wang, and Jay Chou. As critics such as Ien Ang and Rey Chow have reminded us, it is becoming increasingly urgent to reexamine the plurality of Chineseness with the rise of China. Truly, the umbrella term "Chinese pop" or "Mandopop" has become an inadequate common denominator in terms of the multilinguistic and multicultural elements in popular music produced in overseas Chinese communities such as Hong Kong and Taiwan or what Shu-mei Shih calls the "Sinophone" communities. In short, Sinophone studies explore the relation between the Chinese mainland and these Sinophone communities in a set of conditions (geographic, ethnic, linguistic, political, etc.). This thesis will explore the ways in which Sinophone musicians exhibit and perform Chineseness, the reason for its manifestation, and the implications and consequences for these types of articulations. / text Sinophone Chinese popular music Taiwan Teresa Teng Leehom Wang Jay Chou Mandopop
12	From Chinese national identity to Taiwanese consciousness: an examination of the cultural elements in Taiwan's democratization during the Lee Teng-hui era and its legacy, 1988-2004 Ching-Ni Liu, Jessie Unknown Date (has links) This thesis is an investigation of the emergence of democracy and its localized culture in Taiwan during the Lee Teng-hui era and its legacy, from 1988 to 2004. From a Leninist authoritarian system, Taiwan experienced a peaceful transition to representative democracy. The establishment of the first opposition party, the Democratic Progressive Party (DPP), in 1986, and President Chiang Ching-kuo’s tolerance towards it, had signalled the commencement of Taiwan’s democratization. Various political opposition movements existed prior to 1986, especially between 1983 and 1986, indicating a gradual strengthening in the public’s political consciousness. The pivotal event to mark the democratization-localization movement in Taiwan was the emergence of a local Taiwanese, Lee Teng-hui, as President of the Republic of China and Chairman of the ruling party, the Chungkuo Kuomintang (KMT). This occurred when he succeeded Chiang Ching-kuo upon his death in 1988. Local politics henceforth emerged as a major force and KMT factional struggles had begun in earnest. During the democratic transformation that took place in Taiwan in the last quarter of the 20th century, the ruling power of the Waishengren political elite (that is, the Chinese who took over Taiwan in 1945) gradually transferred to local political leaders, and the suppressed issue of building an independent Taiwanese nation became politicized. Furthermore, the KMT itself was undergoing a far-reaching transformation, moving from liberalization, to democratization, to localization or Taiwanization. As a result, the issues of national recognition and the power redistribution of different national groups (from Chinese “Mainlanders” to local Taiwanese) had combined with democratization from the beginning. Democratization was assisted by institution-building through regular elections, an associated critical voice from opposition groups, a solid middle class, and the Taiwanization phenomenon itself. While the experience of colonial rule and an oppressive (rather than reformist) KMT may be said to be in the past, and hence less an impetus for action in the present, yet with the addition of a persistent military threat from People’s Republic of China seeking Taiwan’s “reunification” with the “motherland”, past, present and an anticipated future, combine contextually in the quest for Taiwan’s integrity – and hence the acquisition of an identity that is consciously Taiwanese rather than Chinese by default. Taiwan democracy Taiwan Politics and government Lee Teng-hui Political Science, General (0615)
13	<b>SCALABLY MANUFACTURED SKIN-INTERFACED TRIBOELECTRIC SENSORS FOR HUMAN-ROBOTICS TEAMING</b> Shujia Xu (18417834) 21 April 2024 (has links) <p dir="ltr">Human-robotics teaming (HRT) has many highly impactful applications in industry, medical, rehabilitation, military, mixed reality, etc. High quality sensing technologies and communications are inevitable for the HRT development. Many commercial sensors, such as vision-based, audio-based and proximity sensors, are usually rigid and difficult for conformable and large-scale integration. Imperceptible soft sensing devices feasible for human/robot integration with high compliance are attractive for the HRT applications. In addition, ubiquitous sensing with good robustness, self-powered capability, high fidelity, and high SNR are desirable for future HRT.</p><p dir="ltr">This dissertation presents a comprehensive study of SITS theory, ink-based materials, scalable manufacturing methods to develop SITS devices for various applications, including spray coated SITS for human pulse analysis and robotic control, fabric smart glove for objects recognition, and plant triboelectric skin powered IoT sensing system. We develop the SITS theory and propose design strategies for high-performance SITS devices. We study the ink-based materials and scalable manufacturing methods for SITS. We also conduct materials modifications, device configuration and system integration to fabricate versatile SITS for different applications. The presented concepts and applications vast from human skin to plant skin, which shows great potentials to implement SITS technology for future HRT system.</p> Additive manufacturing Industrial engineering Nanomanufacturing TENG applications
14	Wearable Power Sources and Self-powered Sensors Based on the Triboelectric Nanogenerators Feng, Ziang 16 November 2020 (has links) The triboelectric nanogenerator (TENG) has attracted global attention in the fields of power sources and self-powered sensors. By coupling the omnipresent triboelectrification effect and the electrical induction effect, the TENGs can transduce ambient mechanical energy into electrical energy. Such energy could be consumed instantaneously or stored for later use. In this way, they could be deployed distributedly to be compatible power sources in the era of the internet of things (IoTs), completing the powering structure that is currently relying on power plants. Also, the electrical signals can reflect the environment changes around the TENGs. Thus, the TENGs can serve as self-powered sensors in the IoTs. In this work, we adopted two approaches for TENG fabrication: the thermal drawing method (TDP) and 3D printing. With TDP, we have fabricated scalable fiber-based triboelectric nanogenerators (FTENG), which have been woven into textiles by an industrial loom for wearable use. This fabrication process can supply FTENG on a large scale and fast speed, bridging the gap between the TENG and weaving industry. With 3D printing, we have fabricated TENGs that are compatible with the shape of arbitrary substrates. They have been used as biocompatible sensors: human-skin-compatible TENG has been used to recognize silent speech in real-time by sensing the chin movement; the porcine-kidney-shaped fiber mesh has been used to monitor the perfusion rate of the organ. These works have extended the territory of TENGs and can be critical components in the IoTs. / Ph.D. / Portable electronic devices have become important components in our daily lives, and we are entering the era of the Internet of Things (IoTs), where everyday objects can be interconnected by the internet. While electricity is essential to all of these devices, the traditional power sources are commonly heavy and bulky and need to be recharged or directly connected to the immobile power plants. Researchers have been working to address this mismatch between the device and power systems. The triboelectric nanogenerators (TENG) are good candidates because they can harvest energy in the ambient environment. The users can use them to generate electricity by merely making the rubbing motion. In this work, we report two fabrication methods of the fiber-based triboelectric nanogenerators (FTENG). With the thermal drawing process, we have fabricated sub-kilometer-long FTENG and wove it with the regular cotton yarn into textiles. The wearable power source is human friendly as it does not induce any extra weight load for the user. Besides, we have demonstrated that such long fibers can work as self-powered distributed sensors, such as a Morse code generator. With 3D printing, we have fabricated FTENG-based devices that conform to the working substrates, which can be any shape. We have employed them as biofriendly sensors to translate the chin movement during speaking to language and to monitor the perfusion rate of a pig kidney. The FTENGs have offered excellent comfortability to the users and can play a vital role in reframing the power structure to be compatible with IoTs. triboelectric nanogenerator (TENG) thermal drawing process 3D printing power source self-powered sensor
15	A study of the triboelectricity of 2D materials: MoS2, WS2 and MoO3 : Analyzing measurements from a triboelectric nanogenerator Kilman, Simon January 2022 (has links) Detta projekts mål har varit att undersöka tre olika 2D-materials triboelektriska egenskaper och därmed placera dem i en triboelektrisk serie. Detta utfördes genom att använda en triboelektrisk nanogenerator (TENG) och mäta den resulterande spänningen. Tio stycken motmaterial applicerades mot varje 2D-material på nanogeneratorn. Utifrån resultatet var det möjligt uppmärka typiska vågformer för en TENG, alltså kunde resultatet från mätningen antas vara från den triboelektriska effekten. 2D-materialen placerades tillsammans med dess motmaterial i en triboelektrisk serie och sorterades sedan för att bestämma dess elektronaffinitet. För de tre 2D-materialen hade de gemensamt att ETFE och FEP tillhör den positiva sidan av den triboelektriska serien relativt de 2D-materialen. Resten, alltså: cellofan, kapton, LDPE, nylon, PEEK, PEI, polypropylene och PTFE, placerades negativt i deras respektives 2D-materials serie. Dock blev resultatet ej som förväntat, då ordningen på motmaterialen i serien kunde antas vara samma för alla 2D-material, men detta var inte vad som hittades. Anledningen till detta kan möjligtvis vara ytladdningar som kan ha överförts till materialen medans de hanterades, eller på grund av ytstrukturen av 2D-materialen. Därför föreslås att detta arbete kan förbättras genom mer varsam hantering och spridning av materialen över dess plattform. 2D-material MoS2 WS2 MoO3 triboelektrisk nanogenerator TENG triboelektrisk effekt triboelektrisk serie kontaktelektrifiering. Condensed Matter Physics Den kondenserade materiens fysik
16	Applicerbar teknik för utvinning av energi ur regnkraft : En jämförelsestudie om framtidens energiutvinning / Applicable Technology to absorb energy from rain power : A comparison study in the future of energy conversion Scott, Robin, Ahlgren, Harald January 2019 (has links) På grund av det rådande miljöhotet så bör fokus för forskning och utveckling i ämnet riktas åt att utnyttja så många förnybara energikällor som möjligt, samt även optimera dessa för största möjliga energiupptagning. Vind, vatten och solljus är välkända och väl utformade källor för energi. Huruvida vatten i form av regn kan utnyttjas och dess potential kommer studeras i det här arbetet. Materialval och konstruktionslösningar står i centrum för arbetet. Vidare så studeras dess bakgrunder för utvinningsmetoderna och dess grundläggande principer tas upp för att skapa en bättre förståelse för möjligheterna att utnyttja tekniken. Fortsättningsvis så har rådande potentiella användningsområden och kommande utmaningar diskuterats utförligt. / Because of the prevailing environmental threat, focus for research and development in the subject should aim towards taking advantage of as many renewable energy sources as possible aswell as optimizing them to convert as much energy as possible. All renewable energy must be utilized, but above all, also optimized. Wind, water and sunlight are well-known and well-designed sources of energy. Whether water in the form of rain can be utilized and its potential as a sustainable commercial method will be studied in this paper. Material selection and design solutions are at the heart of the work. Furthermore, its backgrounds for the extraction methods are studied and its basic principles are addressed to create a better understanding of the possibilities of utilizing the technology. Moreover, the current potential uses and future challenges have been discussed in detail. tribo triboelektrisk piezo piezoelektrisk PTFE PVDF Polytetrafluoreten Polyvinylidene ﬂuoride FEP Fluorerad etylen propylen MT-TENG Regnkraft Energiupptagning ur regn alternativ energikälla miljövänlig energi Energy Engineering Energiteknik
17	美國軍售與入聯合國政策之比較分析:台灣 1990-2014 / A Comparative Analysis of US Weapons Sales and UN Strategy in Taiwan from 1990-2014 陳雨耕 Unknown Date (has links) 相較過去冷戰時期的輝煌，台灣現今的國際地位黯然失色許多。自從台灣退出聯合國，與美國斷交後，台灣 (中華民國)的外交地位已漸漸在政治上被孤立。當戒嚴末期，台灣迫切地想重返過去的外交榮景。然而，面對中華人民共和國的威脅時，台灣在國際社會上極為艱困地維繫自己的主權。台灣的領導人透過積極參與國際組織與互動，尤其是聯合國與美國對台軍售，來打破如此艱困的外交處境。在三屆的總統任期中，台灣對聯合國與對美軍售策略已漸漸形成雛形。在初步研究下，美國對台軍售有可能對台灣加入聯合國政策出現影響。換言之，購得有力的武器，台灣加入聯合國的策略就越顯積極。回顧美國與台灣政府的文獻資料，台灣領導人訪談紀錄，報章雜誌和其他官方文件與紀錄，此研究旨在檢視在三位總統(李登輝、陳水扁、馬英九)任期內 (1990 到 2014年)，美國同意對台軍售與台灣加入聯合國的策略。研究結果指出美國對台軍售的武器打擊能力與台灣加入聯合國政策相關的可能性。 / Taiwan’s present international status has degraded considerably since its former glory days during the Cold War era. With its ejection out of the United Nations (UN) and a diplomatic severance with its most vital ally, the United States, Taiwan (ROC) has slowly slipped into political limbo. The island has frantically strived to pull itself back into the world community since the end of martial law. However, it has struggled to maintain its sovereignty and international status in the face of constant threat from the PRC (People’s Republic of China) . Taiwan’s leaders have sought alternative strategies to combat such adverse diplomatic conditions through increasing its membership or participation in various global organizations—particularly the United Nations, and continued arms purchases from the US. Within the span of three presidencies, there appears to be a pattern between Taiwan’s UN strategies and US approved arms sales. Upon initial research, US weapons sales appear to have an effect on UN policy. That is, the more significant the arms sale, the more aggressive Taiwan’s methods for UN participation becomes. Drawing from US and Taiwanese government records, Taiwanese presidential interviews, newspaper articles and other official documents and transcripts, this dissertation aims to examine US approved arms sales and UN strategies under three Taiwanese presidents: Lee Teng Hui, Chen Shui-Bian and Ma Ying Jeou from 1990 to 2014. The findings indicate a possible indirect correlation. Considering the weapons’ strategic capability, Taiwan’s UN strategy fluctuates accordingly. 台灣美國中國李登輝陳水扁馬英九 Taiwan US China Lee Teng Hui Chen Shui Bian Ma Ying Jeou
18	Effects of Natural Antioxidants on Lipid Oxidation of Menhaden Oil Baek, Naerin 25 January 2013 (has links) Preventing oxidative deterioration of fish oil is a significant challenge for the food industry. Natural antioxidants are widely incorporated into foods and oils to prevent oxidation and extend shelf life. The goal of the study is to investigate the activity of novel antioxidants in menhaden oil and to develop optimum formulations containing mixed tocopherols to control oxidation of menhaden oil. Alpha tocopherol, gamma tocopherol, and delta tocopherol in menhaden oil were found at 0.18mg/g, 0.37mg/g, and 0.14mg/g, respectively, using HPLC analysis. Teng Cha extract effectively delayed oxidation of menhaden oil (MO) when stored at 40°C for eight days by measuring primary oxidation products and secondary oxidation products. The combinations of Teng Cha extract and rosemary extract and combinations of ascorbyl palmitate, citric acid, Teng Cha extract and rosemary extract more effectively improved stability of MO containing mixed tocopherols than Teng Cha extract alone at 40°C storage for eight days by measuring primary oxidation products and secondary oxidation products. From this study, Teng Cha extract can be used as a potential natural antioxidant in food industry, especially in combinations with rosemary extract and tocopherols, extending shelf life of menhaden oil. / Master of Science in Life Sciences Natural antioxidant menhaden oil Oxidation tocopherol Teng Cha extract rosemary extract ascorbyl palmitate citric acid HPLC Oxidation products--Primary Oxidation products--Secondary
19	Antioxidant Activity of Ampelopsis Grossedentata Crude Extract and its Major Component Dihydromyricetin Ye, Liyun 25 August 2011 (has links) Oxidation limits the shelf life of many food products. Adding antioxidants to foods is the most common way to solve this problem. Reports on safety issues of synthetic food additives have raised consumer interest in "all natural" foods, without added antioxidants or with synthetic replaced with natural antioxidants. The natural antioxidants now in use are much more expensive and less potent than the synthetic antioxidants. Thus, effective and economical natural antioxidants are of great interest to researchers. Teng Cha is a type of herbal tea found in China that has reported high levels of antioxidants. Antioxidant activity of Teng Cha extract and its major component dihydromyricetin has been reported, but no studies have provided clear evidence for the antioxidant effectiveness of Tech Cha extracts. The goal of this study was to measure the antioxidant activity of Teng Cha extract and dihydromyricetin (DHM), a major component of Tech Cha extract. The DPPH assay was conducted and antioxidant activities of the crude extract and dihydromyricetin were evaluated in soybean oil based on the peroxide value, anisidine value, Totox value, headspace volatiles and headspace oxygen. Antioxidant effectiveness was also evaluated in a cooked beef model system. DHM was more potent than BHA in preventing soybean oil oxidation. The crude extract was not as effective as BHA and DHM, possibly because it contained transition metals. In cooked beef, DHM and the crude extract showed lower activity than BHA, possibly due to their low solubility. Overall, Teng Cha extract and DHM are potential natural food antioxidants for future applications. / Master of Science in Life Sciences Ampelopsis grossedentata antioxidant Teng Cha dihydromyricetin soybean oil oxidation peroxide value anisidine value Totox value headspace volatiles headspace oxygen content TBARS DPPH
20	Synthese und Funktion nanoskaliger Oxide auf Basis der Elemente Bismut und Niob Wollmann, Philipp 29 March 2012 (has links) (PDF) Am Beispiel von ferroelektrischen Systemen auf Bismut-Basis (Bismutmolybdat, Bismutwolframat und Bismuttitanat) und von Strontiumbariumniobat werden neue Möglichkeiten zur Synthese solcher Nanopartikel aufgezeigt. Die Integration der Nanopartikel in transparente Nanokompositmaterialien und die Entwicklung neuer Precursoren für die Herstellung von Dünnschichtproben gehen den Untersuchungen zur Anwendung als elektrooptische aktive Materialien voraus. Durch weitere Anwendungsmöglichkeiten in der Photokatalyse, dem Test dampfadsorptiver Eigenschaften mit Hilfe eines neuartigen Adsorptionstesters (Infrasorb) und auch mit Hilfe der Ergebnisse der ferroelektrischen Charakterisierung von gesinterten Probenkörpern aus einem Spark-Plasma-Prozess wird ein gesamtheitlicher Überblick über die vielfältigen Aspekte in der Arbeit mit nanoskaligen, ferroelektrischen Materialien gegeben. Nanopartikel Nanokompositmaterialien Dünnschichten Bismutmolybdat Bismutwolframat Bismuttitanat Strontiumbariumniobat Elektrooptik Spark Plasma Sintern Adsorption Infrasorb Photokatalyse Teng-Man Pockelskoeffizient nichtlineare Optik nanoparticles nanocomposites thin films bismuth molybdate bismuth tungstate bismuth titanate strontium barium niobate electro-optic spark plasma sintering adsorption Infrasorb photocatalysis Teng-Man pockels coefficient nonlinear optics ddc:546 ddc:541 ddc:535 rvk:VE 9857 Nanopartikel Nanokomposit Anorganische Synthese Transparenz Optoelektronik Photokatalyse Sintern Physisorption

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