7,593 research outputs found
In conversation with Min Jin Lee, 6 Sep 2017
No full textKorean-American author Min Jin Lee's Pachinko is an epic saga of a Korean family told over four generations, beginning in 1910 during the time of Japanese colonialisation and ending decades later in 1989. In this conversation, the author speaks with Associate Professor Anna Johnston, from the School of Communication and Arts at The University of Queensland
RF micro-systems for 5G front-end signal processing
No full textThe fifth-generation (5G) communication has sparked great research interest in developing the next generation radio frequency (RF) front ends for more stringent requirements on performance, power consumption, and spectral utilization efficiency. More parallel RF bands and paths are added in the same form factor, along with which come more components and tighter integration. Designing portable systems faces the new challenge of reducing component size while still operating at RF, where the path attenuation is low and fading is readily manageable. Satisfactory size reduction is particularly difficult for passive components that rely on the principle of waveguiding and thus scale with electromagnetic (EM) wavelength at RF (typical ~10s cm). Hence, radical size reduction by several orders of magnitude can only be attained by resorting to a physical domain other than EM, namely acoustic waves with wavelengths 4~5 orders of magnitude smaller. In fact, acoustic devices at RF, such as surface or bulk acoustic wave devices, have been widely used for mobile phone applications. Other acoustic elements, such as couplers, correlators, and impedance matching networks, have also shown promising potential to outperform the state-of-the-art EM counterparts. However, the past developments often battled the challenge of efficiently accessing the acoustics over a sufficiently wide bandwidth and subsequently producing application-worthy performance, because of the fundamental limitations from the lack of high electromechanical coupling (k2) and low damping piezoelectric platforms. Recently, thanks to the advances in materials, design, and fabrication, LiNbO3 thin-film has been proved as a promising low-loss, wideband, and frequency-diverse acoustic platform for novel functions toward high-performance 5G front-end signal processing.
Based on acoustic devices in LiNbO3 thin films, this thesis aims to design and demonstrate several classes of novel RF microsystems that can enable conventional signal processing functions with better performance or new tasks for emerging applications. First, the acoustic systems are used as passive signal processing elements for the Internet of Things (IoT) applications. The high figure of merit (FoM) LiNbO3 resonator array is used as the impedance matching element for interfacing with the high impedance CMOS rectifiers in the IoT-inspired wake-up radio. The high FoM, adequately large static capacitance and spurious free performance collectively contribute to a high voltage gain over 20. Another type of microsystem for IoT applications is 1-dB IL acoustic delay lines (ADLs) on the S0 mode in thin-film LiNbO3, showing record-breaking low IL over a larger bandwidth, opening new horizons for low-power RF acoustic signal processing. Second, the miniature nonreciprocal component based on switched high-performance delay elements is demonstrated for full duplex radio. The wideband and long delay featured by the high-performance LiNbO3 ADLs significantly benefit the performance, including the dynamic switching induced IL and intra-modulations, while relaxing the requirements for synthesizing and synchronizing the control signals. The demonstrated 4 port circulator shows a highly symmetric performance across the 4-ports with 18.8 dB nonreciprocal contrast between the IL (6.6 dB) and isolation (25.4 dB) over an FBW of 8.8% at a center frequency 155 MHz, all of which are accomplished with a record low switching frequency of 877.22 kHz. Upon further optimizations, such circulators can potentially outperform ferrite-based devices in loss, bandwidth, and isolation while offering more compact size and reconfigurable operation. Third, low-loss wideband GHz S0 mode ADLs are explored for self-interference cancellation in full-duplex radio. The fabricated miniature acoustic delay lines show a fractional bandwidth of 4% and a minimum IL of 3.2 dB at a center frequency of 0.96 GHz. Various delays ranging from 20 ns to 900 ns have been obtained for digitally addressable delay synthesis. Multiple acoustic delay lines with center frequencies from 0.9 to 2 GHz have been demonstrated. The demonstrated ADLs can potentially provide wide-range and high-resolution reconfigurable delays for future SIC applications. Finally, design and measurement of 5 GHz antisymmetric mode acoustic delay lines for 5G enhanced mobile broadband (eMBB) applications are presented; the demonstrated ADLs significantly surpass the state of the art with similar feature sizes in center frequency. The implemented ADLs at 5 GHz show a minimum insertion loss of 7.94 dB and a fractional bandwidth around 4%. In addition to the remarkable device performance, these designs also point out the opportunities to advance the operation frequencies of acoustic devices toward the wideband and high-frequency signal processing functions required for future 5G applications.
RF acoustic microsystems demonstrated in this thesis have shown promising prospects for 5G front-end signal processing applications. Thanks to the simultaneously low damping and wideband performance at RF, acoustic devices based on LiNbO3 thin films are auspicious candidates to provide the design flexibilities and high performance required for various 5G application scenarios. Further development in high-performance RF acoustic devices may put on the horizon an RF front-end synthesized either purely or predominantly from an RF acoustic component kit.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2021-12-01The student, Ruochen Lu, accepted the attached license on 2019-09-12 at 09:43.The student, Ruochen Lu, submitted this Dissertation for approval on 2019-09-12 at 10:03.This Dissertation was approved for publication on 2019-09-13 at 16:52.DSpace SAF Submission Ingestion Package generated from Vireo submission #14451 on 2020-02-28 at 17:35:17Made available in DSpace on 2020-03-02T22:38:37Z (GMT). No. of bitstreams: 4
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The politics of fashion: perceptions of power in female clothing and ornamentation as reflected in the sixteenth-century Chinese novel Jin Ping Mei
No full textThis thesis examines issues of female power and influence in sixteenth-century China focusing on how women and their roles were perceived in the changing social environment of the mid-late Ming dynasty. Using aspects of a New Historicist approach, information from contemporary literary and historical sources are analysed alongside each other. With its emphasis on the lives of women and preoccupation with the description of material objects, the late Ming novel Jin Ping Mei forms an important element in the thesis. China in the sixteenth century saw expanding urbanisation, the emergence of a new wealthy merchant class, increasing visibility of women and a questioning of traditional morality. Fashion consciousness, as one of the most conspicuous aspects of the new material culture, is a possible indicator of these trends. Traditional Western theories contend that fashion began in the particular context of Renaissance Europe. However, this study argues that a similar fashion awareness existed in China too, and was manifested in a competitive striving for social status, in this case specifically among women. In contrast to previous studies which downplayed the impact women had on defining traditional Chinese culture, this thesis demonstrates how women and their sartorial choices began to redefine the boundaries of material culture, influencing literati discourse which, in turn, re- influenced female behaviour
Semimartingales, Markov processes and their applications in mathematical finance
No full textWe show that the marginal distribution of a semimartingale can be matched by a Markov process. This is an extension of Gyngy’s theorem to discontinuous semimartingale.Ph.D.Includes bibliographical referencesIncludes vitaby Jin Wan
Qing hua jian "Jin wen gong ru yu Jin" xin jiao shi =: A new revision of “Jin Wen gong ru yu Jin” from Tsinghua University manuscripts
No full textM.Phil.“Jin Wen Gong ru yu Jin” is part of the Warring States Bamboo Slips (Seven) collected by Tsinghua University which published in April 2017. It is the detailed description of the measures undertaken by Duke Wen of Jin after his return to Jin. It also illustrates the effect of Duke Wen of Jin's policies. It not only has a connection with the transmitted texts, but also shows some differences. The essence of this text catches many scholars’ attention because it values to be studied.Firstly, this essay offers a new revision of the text. In this part, this essay mainly focuses on controversial or difficult words, phrases, and sentences. After comprehensively evaluating the opinions from different scholars, this essay chooses the good ones, or make some supplementary explanations, or gives new opinions. Secondly, this essay focuses on the flag system which described in the text. This part also involves the textual research of some words. Finally, in order to clarify the historical value of the text, this essay further analyzes the essence of the text by comparing with the transmitted texts.二〇一七年四月出版的《清華大學藏戰國竹簡（柒）》中收有〈晉文公入於晉〉一篇簡文，記述晉文公自秦返晉後施行的措施及產生的效果，既與已見之文獻有聯繫，又有較大的不同， 極具研究價值，已引起了不少學者的注意。本文在學者研究的基礎上，首先對簡文作出新的校釋。校釋部分主要針對存有爭議或有疑難的字、詞、句，在綜合衡量各家說法後，或擇善而從，或略有補充，或提出自己新的見解。其次，本文重點討論了簡文所記述的旌旗制度，其中也涉及一些字詞的考證。最後，本文通过與傳世文獻的比較，進一步分析了簡文的性質，以便明確簡文的史料價值。吳方."2020年9月".Parallel title from added title page.Thesis M.Phil. Chinese University of Hong Kong 2020.Includes bibliographical references (leaves 99-108).Abstract also in English.Title from PDF title page (viewed on March 14, 2022).Wu Fang
A research on modern Chinese literature author Ba Jin and his Torrent Triology ("Family", "Spring", "Autumn")
No full textAile temalı romanlar, hem klasik Çin edebiyatında hem de modern Çin edebiyatında oldukça önemli bir yer tutmaktadır. Modern Çin edebiyatının en önemli isimlerinden biri olan Ba Jin (1904-2005) de birçok eserinde aile temasını işlemiştir. Eserlerinde hayat verdiği aileler çevresinde kurguladığı olaylar üzerinden toplumsal sorunları dile getiren yazarın bu alandaki en başarılı eseri ise Sağanak Üçlemesi'dir (激流三部曲 — Jiliu Sanbuqu). Aile (家—Jia), Bahar (春—Chun) ve Güz (秋—Qiu) romanlarından oluşan bu üçleme, XX. yüzyılın ilk çeyreğindeki Çin aile yapısına ve geleneksel Çin kültürüne ayna tutmaktadır. Bu çalışmada Ba Jin'in yazmış olduğu Aile (家—Jia), Bahar (春—Chun) ve Güz (秋—Qiu) romanlarındaki ana karakterler ve ana karakterler çevresinde kurgulanan olaylar incelenerek, romanlara konu olan Gao ailesini dağılmaya götüren sebepler ortaya çıkarılmaya çalışılmıştır.Family saga novels have been very important in both classical Chinese literature and modern Chinese literature. Ba Jin (1904-2005), one of the most important names in modern Chinese literature, has many works in family theme. The most successful work of the author, in family saga genre of literature, is the Jiliu Trilogy. This trio consisting of Jia (Family), Chun (Spring) and Qiu (Autumn) holds a mirror on the family structure and traditional Chinese culture of the first quarter of the twentieth century. In this study, the main characters in the Jia (Family), Chun (Spring) and Qiu (Autumn) novels written by Ba Jin, and the events that were arranged around the main characters, were investigated and tried to reveal the reasons leading to the Gao family's disintegration
Does corruption relieve foreign investors of the burden of taxes and capital controls?
No full textIn a sample of fourteen source countries making bilateral investments in forty five countries, the author finds that taxes, capital controls, and corruption, all have large, statistically significant negative effects on foreign investment. Moreover, there is no robust support in the data for the"efficient grease"hypothesis - that corruption helps attract foreign investment by reducing firms'tax burden and the irritant of capital controls.International Terrorism&Counterterrorism,Capital Markets and Capital Flows,Decentralization,Fiscal&Monetary Policy,Economic Theory&Research,Economic Theory&Research,International Terrorism&Counterterrorism,Governance Indicators,National Governance,Capital Flows
Justification of Induction: Russell and Jin Yuelin. A Comparative Study
No full textJin Yuelin (1895-1984), a Chinese logician and philosopher, is greatly influenced by Hume's and Russell's philosophies. How should we respond to Hume's problem of induction? This is an important clue to understand Jin's whole philosophical career. The first section of this paper gives a brief historical review of Russell and Jin. The second section outlines Hume's skeptical arguments against causality and induction. The third section expounds Russell's justification of induction by discussing his views on Hume's skepticism, causality, principle of induction, and empirical postulates. The fourth section clarifies Jin's justification of induction by discussing his critique of Hume's epistemology and his arguments for the reliability of causality and the eternal truth and apriority of the principle of induction. The final section compares Jin's justification of induction with Russell's and concludes that there are similarities and differences between their projects and that both their attempts fail. This paper takes the similar responses to the problem of induction by Jin and Russell to demonstrate the communication that there has been between Chinese philosophers and the Western ones.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000310146900004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701EthicsHistory & Philosophy Of ScienceLogicPhilosophyA&HCISCI(E)0ARTICLE4353-3783
Economic System for Vietnam: Social Welfare System
No full textThe Vietnamese economy is similar to the Korean economy in the later half of the 1980s in terms of income and economic structure. Therefore, today’s policy makers in Vietnam has similar issues and problems policy makers in Korea had faced in the past. In particular, they concern about advanced human resource, public sector reform, and economic policies to upgrade their economic structure. This book compares today’s Vietnam to Korea’s past in five areas. Chapter 1 estimates developmental gap between two countries, and provides policy measures for Vietnam not to fall into middle-income-trap. Chapter 2 introduces concept of economic system, and analyze social welfare system. Korea has introduced social welfare system in the 1980s, and gradually expanded it. While health insurance system of Korea is evaluated as a success case, the national pension system is evaluated as a failure case. Based on Korean experiences, the author is providing policy suggestions for the Vietnamese social welfare system. Chapter 3 analyze prudent macroeconomic policies for economic growth and financial market development. In particular, based on two economic crises Korea had experienced, the author suggests macroprudent capital flow, prevention of household debt, and effective way to utilize foreign capital. Chapter 4 emphasizes fair competition, SOE reform, and improving international competitiveness of private sector. Also, it introduces ways to set up effective industrial policies. Chapter 5 analyze labor market and aims to make flexible and secure labor market. It suggests to establish the three party committee between labor, manager, and government. Also, it emphasizes the importance of re-training.Abbreviation
Executive Summary
Author : Doowon Lee
CHAPTER ONE :
Developmental Gap between Vietnam and Korea
Author : Doowon Lee
Ⅰ. Introduction 38
Ⅱ. Measuring the Developmental Gap 40
Ⅲ. The Vietnam Economy and the MIT 52
Ⅳ. Conclusion
CHAPTER TWO :
Economic System for Vietnam: Social Welfare System
Author : Jin Park
Ⅰ. Introduction
Ⅱ. Current Standing in Vietnam
Ⅲ. Korea’s Social Welfare System (Prof. Jin Park, Daemyeong Kwon)
Ⅳ. Current plan for the Social Welfare System in Vietnam
Ⅴ. Vietnam’s Vision and Reform (Prof. Jin Park and Dr. Phan Thi Song Thuong)
Ⅳ. Conclusion
CHAPTER THREE :
Indentifying and Promoting Sound Economic Policies for Growth and Financial Market Development
Author : Ki Young Park
Ⅰ. Introduction
Ⅱ. Evaluating the Current State of the Vietnamese Economy and Financial Markets
Ⅲ. Capital Market Liberalization
Ⅳ. Policy Recommendation
Ⅴ. Conclusion
CHAPTER FOUR :
Enhancing the Industry Ecosystem in Vietnam
Author : Yun Jeong Choi
Ⅰ. Introduction
Ⅱ. Enhancing the Competitiveness of State-Owned Enterprises
Ⅲ. Enhancing the Industrial Competitiveness
Ⅵ. Fostering a Level Playing Field and Fair Competition
Ⅴ. Conclusion
CHAPTER FIVE :
Sustainable Welfare for Labor Market: Labor Flexibility and Employment Protection
Author : Ji Young Park
Ⅰ. Introduction
Ⅱ. Conceptual Framework
Ⅲ. Labor Market Policy in Vietnam: Labor flexibility
Ⅵ. Experiences of South Korea
Ⅴ. Policy Recommendations
Appendices
References
Index
AuthorTRU
Language, Immigration and Acculturation in the Short Stories of Ha Jin
No full textThe Problems of Acculturation: Flushing, Queens, in the Short Stories of Ha Jin
Abstract:
Noted author Ha Jin is often thought of as a Chinese author despite the fact that all of his writing has been written in English. Two of his later works, A Free Life (2007) and A Good Fall (2009) are set among the Chinese community in Flushing, Queens. This essay examines three short stories An English Professor, A Pension Plan, and Temporary Love from A Good Fall. In these works, Jin discusses the problems of acculturation these immigrants face, including learning English, finding employment, and dealing with forced separation. The stories depict the treacherous territory the immigrants, as well as the author himself at times, traverse as they dwell between two languages, two cultures, two literatures, two countries
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