3,425 research outputs found
Tunable acoustic attenuation in dilute suspensions of non-spherical magnetic particles
The microstructure of suspensions of ferromagnetic particles with subwavelength size can be controlled by an external field, making it possible to develop novel broadband acoustic materials with anisotropic and tunable acoustic properties. In this study we experimentally show that dilute suspensions of nickel micro-flakes exhibit a greater than 20% change in attenuation coefficient at MHz frequencies upon changing the direction of an external magnetic field, at particle volume fractions of only 0.5%. Optical transmission measurements and analysis of the characteristic timescales of particle alignment and chaining are used to study the mechanisms behind this acoustic anisotropy. By making comparison to suspensions of spherical particles, we show that the shape and orientation of the nickel micro-flakes play important roles in the tunable acoustic attenuation of these suspensions.Peer reviewed
Gui biao mian xi dai zi xuan de dan ge yuan zi huo fen zi de cao zong yi ji xing zhi
Liu, Qin = 硅表面攜帶自旋的單個原子或分子的操縱以及性質 / 劉琴.Thesis Ph.D. Chinese University of Hong Kong 2014.Includes bibliographical references (leaves 132-144).Abstracts also in Chinese.Title from PDF title page (viewed on 14, November, 2016).Liu, Qin = Gui biao mian xi dai zi xuan de dan ge yuan zi huo fen zi de cao zong yi ji xing zhi / Liu Qin
Liu Chih's "Shang Kao Chien-ssu"(上高監司)
In the "Yang-ch'un Po-hsueh" (陽春白雪), which is a collection of san-ch'u (散曲), a kind of popular songs of the Yuan dynasty, we find two long pieces composed by Liu Chih, which vividly depicts some aspects of the social unrest of his time. The author of the present article analyses the first of the two to date, and gives some biographical notes of Liu Chih
Chen Yuan zhi zong jiao yan jiu.
Chen Yuan's research on religion had been greatly influenced by his Cultural concern. There were three distinctive ways of expressions in his cultural concern: In his Christian studies, it was reflected on his attempt of indigenization of Christianity in China: Christianity should be seen as a part in the history of Chinese Culture; In his studies of ancient religions, he argued for the assimilation of Chinese Culture to different foreign religions; and in his Buddhist and Daoism studies, he analyzed that religions could save and develop culture, and emphasized the life-force of Chinese Culture. All the three cultural concerns and their different expressions on the relationship between religions and Chinese Culture were responses to the social context. We should take into fully consideration on cultural concern when analyzing his study of religions.Christian faith is also a key factor in analyzing Chen Yuan's study of religion. In Christian studies, his Christian faith has allowed him to take up both an insider's and an outsider's view and even to be critical in attempting research on Christianity, Again, in the study of ancient religions, his Christian faith has allowed him to adopt more sympathy towards ancient religions, and he could treat other religions "equally" and "sympathetically"; And in Buddhist and Daoism studies, his personal religious experience had again given him a open mind and to respect other religions. In a word, the Christian faith adopted by Chen Yuan did not impede, on the contrary, it exerted more positive influences to his study of religions.Comparing with the various dimensions of the phenomenology of religion, we can get an even better view regarding his approach on study of religions: His approach was mainly descriptive, historical and comparative; He treated religions equally, objectively, sympathetically, no matter it was his own faith, or other people's faiths; Chen Yuan did not have the intention of developing an autonomous discipline of the study of religion, but he managed to establish the autonomy of "historical study of religion" as a branch of the discipline of history in China. Chen Yuan has also somehow started the study of "history of religions" as a branch of the discipline of religious studies in China, which he might not have the clear intention to do. (Abstract shortened by UMI.)This dissertation attempts to understand and probe the Chen Yuan's study of religions from the perspectives of his historical research, his cultural concern and their relationship with his Christian Faith. In order to explore the Characteristic in Chen Yuan's study of religions, the author also compared his research with some modern approaches of western religious studies, especially compared with Phenomenology of religion.劉賢 = On Chen Yuan's study of religions / Liu Xian.論文(哲學博士)--香港中文大學, 2005.參考文獻(p. 119-129).Adviser: Peter Tze Ming Ng.Source: Dissertation Abstracts International, Volume: 67-01, Section: A, page: 0224.Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Abstracts also in English.School code: 1307.Lun wen (Zhe xue bo shi)--Xianggang Zhong wen da xue, 2005.Can kao wen xian (p. 119-129).Liu xian = On Chen Yuan's study of religions / Liu Xian
Effect of Shen-yuan on haemodynamic and anti-inflammatory factors in a porcine model of acute myocardial infarction
We previously found that Shen-yuan exerted cardioprotective activities in rodent and porcine myocardial infarction (MI) models because of its antioxidative and anti-apoptotic properties. This study aimed to investigate whether the cardioprotective effects from Shen-yuan are due to regulation of haemodynamics and inflammation in a porcine model of acute MI. Myocardial infarction was induced by left anterior descending coronary artery ligation. Low, moderate, and high doses of Shen-yuan treatment were started 1 week before MI and continued for 2 weeks after MI. Whole blood viscosity at 15 s(-1) and platelet aggregation rate were significantly increased in the MI group, but were markedly attenuated by high doses of Shen-yuan. A moderate dose of Shen-yuan also restored decreased values of the peak rise of left ventricular pressure and left ventricular mean pressure after MI. Expression of the T regulatory cell marker forkhead box P3 (Foxp3)(+) at 14 days post-MI was lower than that in the sham-operated group. Foxp3 was significantly up-regulated in the infarcted and non-infarcted zones of the left ventricle in the Shen-yuan treatment groups. Plasma interleukin-10 and transforming growth factor-beta levels were elevated by Shen-yuan treatment in a dose-dependent manner. Shen-yuan elicits cardiovascular protection by its haemodynamic stabilization and anti-inflammatory effects after onset of MI in a porcine model.National Science and Technology Major Project of China for 'Major New Drugs Innovation and Development' [2009ZX09103-441]SCI(E)[email protected]
Variables influencing the pelvic radiological evaluation in children with developmental dysplasia of the hip managed by closed reduction: a multicentre investigation
Purpose: This study aims to evaluate (1) the probability to achieve normal pelvic radiographs in children with developmental dysplasia of the hip (DDH) treated by closed reduction and (2) the amount of time needed to achieve normal pelvic radiographs and to assess what factors influence both probability and time to achieve normal radiographic parameters following CR and spica cast immobilization for DDH. Methods: We retrospectively reviewed 436 patients (393 girls, 43 boys; 507 hips) with DDH treated by closed reduction (CR). Tönnis grade, AVN, acetabular index (AI), centre-edge angle (CEA), and Severin radiographic grade were evaluated on plain radiographs. Criteria to rate pelvis radiographs as normal were established. Cox regression was used to evaluate the factors influencing the probability and the time to achieve normal radiographs. Results: According to our criteria, 167 hips (32.9%) achieved normal radiographic parameters during follow-up. The overall amount of time to achieve normal pelvis radiographs was 36.1 ± 15.5 months. Patients older than 24 months of age at the time of CR needed longer time to achieve normal radiographic parameters (55.2 ± 28 months) compared with other age groups. Cox regression analysis suggested the overall cumulative probability of recovery increased by 46% at five years following CR, then it tended to plateau with an annual increase less than 5%. Age older than 24 months, bilateral dislocation, pre-operative AI greater than 40°, and AVN were risk factors for reduced probability of achieving normal radiographic parameters. Conclusions: The cumulative probability of achieving normal pelvis radiographs increases linearly during the first five years following CR, then it tends to plateau. Age older than 24 months and Tönnis grade III and IV are associated with longer time to achieve normal radiographic parameters. Age older than 24 months, bilateral dislocation, pre-operative AI greater than 40°, and AVN are risk factors for reduced probability of achieving normal radiographic parameters in children with DDH treated by closed means
The Divorce
This thesis is the work of our collaboration. Throughout the writing are narrations from both Feng Xingyue and Liu Yuan that tell the entire creative process of our work. These narrations work as a timeline and thread together our work and research. We are collaborating artists and partners in life who have worked with each other for many years. China’s social issues are our interest points. This article can be divided into three parts: the history of marriage, marriage in China and its problems, and our Divorce project, an art piece that includes a Chinese wedding ceremony.Everyday lif
A Study on the Practice of the Control Power as a Result of Constitutional Amendments: Taking the Third Control Yuan as a Case
The control system is an original and sound system of this Country. The Founder of this Country, Dr. Sun Yat-sen, proposed after he established this Republic that the control power should be practiced by an independent body to highlight the functions of such power, rather than putting it under the legislative power as in the 3-Separated Powers common to many Western countries.
This thesis begins by examining the status and nature of control power in the 5-Separated Powers as in the constitutional regime of this Country from a perspective of separation of powers. It follows by exploring the evolution of mandates of the Control Yuan as a result of various constitutional amendments during the 1990s when the Government undertook constitutional amendments engineering for the promotion of democratic development. This thesis then analyzes the impact of such constitutional amendments upon the practice of control power from existing laws and regulations relevant to the control power and provides the views of this author. It then analyzes the status quo of the practice of functions of the Third Control Yuan by its Members, in comparison to the statistics on the functional practice of the Second Control Yuan, so as to comprehend the efficacy of the practice of functions of the Third Control Yuan. In the conclusion, the author puts forward his own findings and suggestions on the practice of control power by the Third Control Yuan
[[alternative]]A Study of the Legislative Yuan's Function– Case Analysis of Interpellations
[[abstract]]Interpellation is used to refer to the right of legislators to submit oral or written questions to government officials about affairs for which the government is responsible and to demand that the officials answer them in writing or orally. This is a process through which the individual members of the legislature may come to understand, comment on and control the government's policy, and may exhort the government to correct individual official's illegal or inappropriate acts (Liu Ching-jui, 1982; 251).
In addition to interpellations, the legislative bodies of the Western that have developed democracies also exercise the right of investigation to keep the government in check. This right is either provided for explicitly (Germany, Japan) or implicitly (the United Kingdom, the United States, France) in the constitution. In Taiwan, the Legislative Yuan has become the country's sole representative office since assuming most of the powers of the Control Yuan and the now-defunct National Assembly after the many attempts to amend the ROC Constitution. However, the right of investigation still falls within the authority of the Control Yuan, which limits the Legislative Yuan's ability to keep a tight rein on the executive branch.
In order for the Legislative Yuan to live up to public expectations, it amended and enacted five acts before January 12, 1999, and all these changes took effect after then. The alterations were aimed to improve the function of the Legislative Yuan, not least the right of interpellation. Although the Democratic Progressive Party came to power in 2000 after the first political transfer of power in almost 55 years, it has been unable to secure a majority of seats in the Legislative Yuan via elections. This has resulted in a schism whereby the executive branch is controlled by one party and the legislative branch by others. This analysis attempts to explain the new regulations regarding interpellations. How have lawmakers of the ruling and opposition parties adapted to their new roles under a split government after the 2000 power shift? What controversies have arisen by lawmakers' questioning of the premier? What advantages has the interpellation process developed in other democracies? What are the shortcomings of the current interpellation process in Taiwan? And what can be done to improve the situation in Taiwan?
Yuan gong liu dong dui qi ye shou gou ke neng xing de ying xiang
M.Phil.In this thesis, I examine the role of employee mobility in firms strategic choices. More specifically, I investigate the impact of scientist mobility on the likelihood of a firm being acquired. In particular, I analyze the contingency factors that moderate the impact of scientist mobility on the likelihood of acquisition. First, I propose that scientist mobility would increase the likelihood that the source firm will acquire the recipient firm. Since the mobility of an individual could facilitate interfirm knowledge flows, there will be a potential leakage of proprietary knowledge when a scientist moves from a source firm to a recipient firm. To reduce the risk of imitation and sustain the competitive advantage, the source firm might rather acquire the recipient firm. Second, I suggest that the specificity of mobile scientist’s knowledge, and the knowledge relatedness as well as market relatedness between the source firm and the recipient firm could make the impact of information leakage induced by mobility more significant on the likelihood of acquisition.本篇論文旨在研究員工流動對於企業戰略選擇的影響。本文主要關注科學家的跨公司流動對企業收購可能性的影響,並詳細分析了在此過程中發揮重要作用的權變因素。首先,我認為科學家的流動性會增加員工流入的公司被原公司收購的可能性。由於員工的跨公司流動可以促進公司間的知識流動和轉移,當科學家從原公司離職並加入新的公司時,他們可能會攜帶原公司的專有知識並洩漏給新雇主。因此,原公司可能會採取直接收購目標公司的戰略以降低其知識被複製或盜用的風險並維持自身的競爭優勢 。其次,我認為流動員工的知識專有性,兩公司間知識相關性以及市場相關性會加劇信息洩漏的嚴重性,繼而增強員工流動對於收購可能性的影響。Liu, Chang.Thesis M.Phil. Chinese University of Hong Kong 2018.Includes bibliographical references (leaves 39-45).Abstracts also in Chinese.Title from PDF title page (viewed on …).Liu, Chang
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