自清代吳大澂《古玉圖考》以來，中國玉器研究便與社會、禮制等相關聯，隨著20世紀下半葉良渚文化、紅山文化、興隆窪文化等遺址史前精美玉器的發現，玉器研究也逐漸從傳統金石學轉向考古學研究的方向，集中於聚落或墓葬研究。 / 源於石器研究領域的操作鏈方法為玉器技術研究提供了新的方向和視角。它注重動態性、持續性和完整性，將靜態遺存轉變為動態過程，還原某一特定的生產流程，通過比較不同群體的技術系統還原其背後社會、認知層面的異同。 / 操作鏈方法應用於玉器研究主要可以從聚落和作坊遺址兩個角度展開，本文以後者為重，選取環珠江口地區的白芒遺址個案分析，將操作鏈概念應用於玉石飾物作坊研究中，並進而尋找環珠江口地區不同遺址之間存在的生產消費關係，以及環珠江口地區作坊遺址所代表的技術與文化特徵。 / Since Wu Da-zheng’s Catalogue of Ancient Jades (Gu yu tu kao) in the Qing Period, research of Chinese jades has largely focused on analyses of their social and ritual significances. In latter half of the 20th century, excavations in Liangzhu, Hongshan, and Xinglongwa culture sites discovered many prehistoric jades. These important discoveries gradually shifted ancient jade studies to an archaeological approach, focusing on the settlement and burial contexts of the jades. / The use of the Chaîne Opératoire (French for "operational sequence") method in lithic studies has provided us a new research perspective and direction in the study of jades. This method pays attention to the full life history of the jades, from production to consumption and abandonment, which is treated as a dynamic and continuous process. Furthermore, it allows us to analyze the social and cognitive dimensions of the jade users through comparisons of the jades’ production technologies and use wear. / This paper applies the chaîne opératoire method to study jades by analyzing related settlements and lapidary workshops, especially the latter. Using the lapidary workshop at Pak Mong site on Lantau Island as the main case study, this study will examine the production and consumption of the Pearl River Delta region, and discuss the technological and cultural characteristics that these lapidary workshops represent. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / 温雅棣. / Thesis (M.Phil.) Chinese University of Hong Kong, 2014. / Includes bibliographical references (leaves 77-88). / Abstracts in English and Chinese. / Wen ya di.

林曉東. / 呈交日期"一九九八年十二月". / 論文 (藝術碩士)--香港中文大學, 1999. / 參考文獻 (leaves 36-37). / 附中英文摘要. / Cheng jiao ri qi "Yi jiu jiu ba nian shi er yue". / Lin Xiaodong. / Lun wen (yi shu shuo shi)-- Xianggang Zhong wen da xue, 1999. / Can kao wen xian (leaves 36-37). / Fu Zhong Ying wen zhai yao. / 目錄 --- p.1 / 前言 --- p.3 / 提要 --- p.4 / Abstract --- p.5 / Chapter 第一章 --- 現代藝術的起始與界定 --- p.6 / 現代藝術是甚麼 --- p.6 / 現代藝術起始之歧見 --- p.7 / 現代藝術之本文界定 --- p.8 / Chapter 第二章 --- 藝術媒介的界定 --- p.11 / 傳統藝術品的功能指涉´ؤ´ؤ服務對象與之帶來的標準 --- p.11 / 藝術品的功能指涉之轉向與新媒體的出現´ؤ´ؤ媒介分劃的再界定 --- p.13 / Chapter 第三章 --- 圖像的承繼與流傳一攝影術 --- p.18 / 圖象的特質與文字的關係 --- p.18 / 攝影術中的原物與複本 --- p.24 / Chapter 第四章 --- 從一件藝術作品的完成：反思藝術媒介的本質 --- p.26 / Chapter 1. --- 社會文化 --- p.28 / Chapter 2. --- 作者 --- p.28 / Chapter 3. --- 意念 --- p.28 / Chapter 4. --- 製作 --- p.29 / Chapter 5. --- 成品 --- p.30 / Chapter 6. --- 命題 --- p.30 / Chapter 7. --- 觀眾 --- p.31 / Chapter 8. --- 觀賞 --- p.31 / Chapter 9. --- 討論 --- p.32 / Chapter 10. --- 紀錄 --- p.32 / Chapter 11. --- 流傳 --- p.32 / Chapter 12. --- 時間性 --- p.33 / Chapter 第五章 --- 總結 --- p.34 / 參考書目 --- p.36 / 附圖 --- p.38

"The time-of-arrival (ToA)-based localization technique performs superior in line-of-sight (LoS) conditions, and its accuracy degrades drastically in proximity of micro-metals and human body, when LoS conditions are not met. This calls for modeling and formulation of Direct Path (DP) to help with mitigation of ranging error. However, the current propagation tools and models are mainly designed for telecommunication applications via focus on delay spread of wireless channel profile, whereas ToA-based localization strive for modeling of DP component. This thesis provides a mitigation to the limitation of existing propagation tools and models to computationally capture the effects of micro-metals and human body on ToA-based indoor localization. Solutions for each computational technique are validated by empirical measurements using Ultra-Wide-Band (UWB) signals. Finite- Difference-Time-Domain (FDTD) numerical method is used to estimate the ranging errors, and a combination of Uniform-Theory-of-Diffraction (UTD) ray theory and geometrical ray optics properties are utilized to model the path-loss and the ToA of the DP obstructed by micro- metals. Analytical UTD ray theory and geometrical ray optics properties are exploited to model the path-loss and the ToA of the first path obstructed by the human body for the scattering scenarios. The proposed scattering solution expanded to analytically model the path-loss and ToA of the DP obstructed by human body in angular motion for the radiation scenarios."

13 slides in pocket inside back cover. / Digitized by Kansas Correctional Industries

O presente estudo propõe-se responder à questão de investigação: como podemos abordar conceitos de geometria plana com estudantes de sexto ano por meio de confecção de objetos manipulativos digitais e não-digitais, permitindo que estes se reconheçam como fabricantes de seu próprio conhecimento? A pesquisa apresenta uma proposta de atividade em que estudantes foram convidados a serem fabricantes de seu próprio conhecimento, mais especificamente de conhecimentos de geometria plana. Por meio da confecção e manipulação de objetos digitais e não-digitais, os estudantes transformaram a sala de aula em uma Fábrica de Matemática. O estudo foi desenvolvido durante o ano de 2016, com uma turma de sexto ano de uma escola municipal de Sapucaia do Sul, no horário regular de aula. Apoiada na teoria do construcionismo de Seymour Papert, na pedagogia da autonomia de Paulo Freire e na aprendizagem cooperativa e por equipes de Jean Piaget, e utilizando o estudo de caso como metodologia, o presente trabalho apresenta uma experiência de abordagem de conceitos de geometria plana – área, perímetro, paralelismo e perpendicularismo, entre outros – que permitiu o reconhecimento, por parte dos estudantes, da possibilidade de se tornarem agentes ativos na construção dos seus conhecimentos. Além disso, percebeu-se quanto aos resultados, que quando lhes são oferecidas diferentes oportunidades para aprendizagem, os estudantes podem se tornar sujeitos críticos, autônomos e produtores de conhecimento. / The present study proposes to answer the research question: how can we approach concepts of flat geometry with sixth-year students by making digital and non-digital manipulative objects, allowing them to recognize themselves as manufacturers of their own knowledge? The research presents a proposal of activity in which students were invited to be manufacturers of their own knowledge, more specifically of knowledge of flat geometry. Through the making and manipulation of digital and non-digital objects, students transformed the classroom into a Mathematics Factory. The study was developed during 2016, with a sixth grade class from a municipal school in Sapucaia do Sul, at regular school hours. Based on the construction theory of Seymour Papert, Paulo Freire 's pedagogy of autonomy and cooperative and team learning by Jean Piaget, and using the case study as methodology, the present work presents an experience of approaching concepts of flat geometry - area, perimeter, parallelism and perpendicularism, among others - that allowed the students to recognize the possibility of becoming active agents in the construction of their knowledge. In addition, it was perceived as to the results, that when they are offered different opportunities for learning, students can become critical, autonomous subjects and producers of knowledge.

This thesis develops a new method for time-frequency signal processing and examines the relevance of the new representation in studies of neural coding in songbirds. The method groups together associated regions of the time-frequency plane into objects defined by time-frequency contours. By combining information about structurally stable contour shapes over multiple time-scales and angles, a signal decomposition is produced that distributes resolution adaptively. As a result, distinct signal components are represented in their own most parsimonious forms.  Next, through neural recordings in singing birds, it was found that activity in song premotor cortex is significantly correlated with the objects defined by this new representation of sound. In this process, an automated way of finding sub-syllable acoustic transitions in birdsongs was first developed, and then increased spiking probability was found at the boundaries of these acoustic transitions. Finally, a new approach to study auditory cortical sequence processing more generally is proposed. In this approach, songbirds were trained to discriminate Morse-code-like sequences of clicks, and the neural correlates of this behavior were examined in primary and secondary auditory cortex. It was found that a distinct transformation of auditory responses to the sequences of clicks exists as information transferred from primary to secondary auditory areas. Neurons in secondary auditory areas respond asynchronously and selectively -- in a manner that depends on the temporal context of the click. This transformation from a temporal to a spatial representation of sound provides a possible basis for the songbird's natural ability to discriminate complex temporal sequences.

Filmmakers first received widespread academic attention as case studies into the increasing casualisation of labour in post-industrial economies. Their precarious existence in project-based labour markets provided much food for thought about the future of work, while their status as artists and producers of culture entered them into debates around just what art is and how to approach it. But in light of recent transformations in the cultural industries and the accompanied blurring of boundaries between production and consumption, academic understandings of the lives filmmakers lead have also been somewhat blurred. This ethnography of networks of cultural production in Beirut re-introduces filmmakers into the very sociological debates that they helped spark. Might a return to the situated experience of these theoretically and methodologically challenging people, who form workgroups and collaborate with each other repeatedly across projects as they craft their own careers, shed productive light on academic understandings of precarity, cultural production and indeed our increasingly confusing relationships with the objects around us? With that in mind, in this thesis I ask the following research question: how are networks of film production formed and maintained in Beirut? Based on an 'insider' ethnography of various film projects weaved into a mixed-methods social network analytic methodology, I adopt a relational sociological approach that conceives of production networks as akin to social worlds and find three analytic planes to delve deeper into: markets, objects and relationships. In relation to markets, I echo the argument that current classification systems of cultural production are too consumption-based and adopt a social network markets framework more sensitised towards production. Here, I find that the cyclical, project-based relationship of patronage that ties production networks to their clients is highly varied and contingent, shaping not only the process of cultural production but also its organisational structure. Further, I argue that the management of these contingencies is key to the potential repeat collaboration not just with clients (and their own social networks), but fellow producers as well. But past projects do not simply disappear once completed, they might well come back to haunt their makers. Drawing upon ethnographic and recent historical data on a number of web-series that emerged out of Beirut between 2009 and 2012, I compare using two-mode networks the past and more recent projects my interlocutors were involved in. Here, I find that one's past projects shape one's future by conducing or hindering their chances of finding new work. Moreover, and perhaps more importantly, I find that filmmakers (and those around them) increasingly define themselves (and are defined by others) in relation to the past projects they have done. Over time, though, as filmmakers collaborate on an increasing number of films, their relationships take on deeper characteristics than monochrome economic considerations. Here I draw upon the notion of embeddedness to shed light on emergent meaning at the network level across a number of projects and, therefore, the emergent social world-ness of networks. While the first set of findings relates to debates in the sociology of work and the second to those in the sociology of cultural production, my final analysis shows just how intimately the two are connected. I conclude by highlighting the potential of empirically-grounded relational sociological approaches to finessing our understandings of cultural work in its economic, social, but also material and technical contingencies.

The capture and beneficial application of learning from past experiences in projects has been an area of interest and debate for many years. The implementation of lessons learnt is commonly acknowledged as difficult. Existing studies point to the deficiencies in current practice but few propose practical approaches to improve the situation. A key barrier to learning in projects is the time-critical nature of most projects which makes the creation of time and space to learn and then apply the resultant learning problematic. Other inhibitors include the variety and temporality of project teams, the geographical spread of many projects and client pressures to reduce costs. The aim of this research was to improve project learning processes in multi-phase project environments through the identification and application of relevant organizational learning and knowledge management theories. The research was based on a single company longitudinal case study in an infrastructure support services organization. An event-based approach to project lessons was developed which focuses on benefits realisation and measurement. The processes employed overcome some of the key barriers to the effective capture of lessons learnt and their subsequent implementation i.e. shortage of time, different learning styles of individuals, lack of effective capture mechanisms, poor articulation of benefits realisation, lack of management sponsorship. A model was also developed which acts as a multi-faceted lens which aids the understanding of the dynamics of project-based learning. The model was tested through a series of workshops. In order to assist the roll-out of the new approach across the case study organisation and outline implementation guide that has been developed. The approach can also be promoted externally to improve project management practice across the wider construction industry. In addition, the study also revealed that event-based enactment of complex/abstract theories can be used as a tool to create improved praxis by overcoming the need to explain the theories to the actors involved. The main contribution to research is the development of a new approach which extends existing theory in the areas of learning, knowledge management and boundary objects in multi-phase project contexts. It achieves this through the synergistic use of the theories employed which support the development of reflective practitioners with the skills to engender a 'learning how to learn' culture within project-based environments. Further testing of ongoing benefits monitoring and establishing causality is needed. Overall, the methodology developed is highly adaptable and can be used by others in different organizational contexts to improve organizational learning, business performance, client satisfaction and wider stakeholder outcomes.

The objective of this thesis is to study the fluid oscillation modes in compact stars, understand their properties and infer stellar structures from their frequencies. The first part of the thesis focuses on the Newtonian theory of stellar pulsation and the Cowling approximation (CA), which neglects the change in gravitational potential. We modify the conventional CA, devise a more accurate version of the CA and calculate the first-order correction to the conventional CA. In the second part, we apply the variational approximation method proposed by Chandrasekhar [Astrophys. J. 139,664 (1963)] and δ-perturbation expansion proposed by Bender et. al. [J. Maths. Phys. 30, 1447 (1989)] to explain the universality in the relationships between the fundamental mode frequency and the moment of inertia of neutron stars, which was discovered by Lau et. al. [Astrophys. J. 714, 1234 (2010)]. We reveal that stiff equations of state are the conditions for the observed universality. In the third part, we consider the relativistic pulsation formulation and relativistic CAs for compact stars. We unify several known CAs with a single second-order differential equation. We also extend the modified CA derived from the formalism established by Allen et. al. [Phys. Rev. D 58, 124012 (1998)] to include the effect of buoyancy. Finally, we find the first-order and the second-order post-Newtonian expansions for the nonradial pulsations in quark stars. We derive an analytic formula expressing the fundamental mode frequency in terms of the compactness of quark stars. As a result, we are able to verify the universality mentioned above for quark stars. / 這論文是對在牛頓力學以及相對論框架下緻密星流體振盪的研究結果。論文第一部分集中討論牛頓力學下流體振盪以及近似方法。這近似方法忽略重力勢的擾動，令系統由四階微分方程減少為二階微分方程。我們修正了已往的近似方法和提出一個更精準的近似方法。第二部分包括變分近似方法。我們利用該方法和δ微擾理論解釋基本模式頻率的普通性。第三部分包括相對論框架下緻密星流體振盪和近似方法。我們以一條二階微分方程總結之前出現的近似方法並且在近似方法中加入浮力。最後，我們執行一階和二階的後牛頓展開，以分析夸克星的基本模式。我們驗證了展開的準確度和發現了基本模式頻率的方程。 / Chan, Tsang Keung = 有關在緻密星中流體振盪的研究 / 陳增強. / Thesis M.Phil. Chinese University of Hong Kong 2013. / Abstracts also in Chinese. / Title from PDF title page (viewed on 07, October, 2016). / Chan, Tsang Keung = You guan zai zhi mi xing zhong liu ti zhen dang de yan jiu / Chen Zengqiang. / Detailed summary in vernacular field only.

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