Student Number : 9900131F - MSc (Eng) dissertation - School of Mechanical Engineering - Faculty of Engineering / Recent high-resolution numerical studies of weak shock reflections have shown that a complex flow structure exists behind the triple point which consists of multiple shocks, expansion fans and triple points. This region had not been detected earlier in experimental observations or numerical studies of weak shock reflections due to the small size of this region. New components were designed and built to modify an existing large-scale shock tube in order to obtain experimental observations to validate the numerical results. The shock tube produced a large, expanding cylindrical incident wave which was reflected off a 15° corner on the roof of the section to produce a weak shock Mach reflection with a large Mach stem in the test section. The shock tube was equipped with PCB high-speed pressure transducers and digital scope for data acquisition, and a schlieren optical system to visualise the region behind the triple point. The tests were conducted over a range of incident wave Mach numbers (M12 = 1.060-1.094) and produced Mach stems of between 694 mm and 850 mm in length. The schlieren photographs clearly show an expansion fan centered on the triple point in all the successful tests conducted. In some of the more resolved images, a shocklet can be seen terminating the expansion fan, and in others a second expansion fan and/or shocklet can be seen. A ‘von Neumann reflection’ was not visualised experimentally, and hence it has been proposed that the four-wave reflection found in these tests be named a ‘Guderley reflection’. The experimental validation of Hunter & Tesdall’s (2002) work resolves the ‘von Neumann Paradox’.

Gong, Xiangjun = 新型全內反射顯微鏡的搭建及其在膠體研究中的應用 / 龔湘君. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references. / Abstracts in English and Chinese. / Gong, Xiangjun = Xin xing quan nei fan she xian wei jing de da jian ji qi zai jiao ti yan jiu zhong de ying yong / Gong Xiangjun. / Abstract (Chinese) --- p.i / Abstract --- p.iii / Contents --- p.v / Acknowledgement --- p.vii / Chapter Chapter 1 --- Introduction to Total Internal Reflection Microscopy (TIRM) / Chapter 1.1 --- History of TIRM --- p.1 / Chapter 1.2 --- Instrumentation --- p.1 / Chapter 1.2.1 --- Apparatus --- p.1 / Chapter 1.2.2 --- Optical Tweezer --- p.3 / Chapter 1.3 --- The principle of the technique --- p.5 / Chapter 1.3.1 --- Total Internal Reflection --- p.5 / Chapter 1.3.2 --- Details on Scattering of the Evanescent Wave --- p.7 / Chapter 1.3.3 --- Data analysis --- p.14 / Chapter 1.3.4 --- A typical potential energy profile --- p.17 / Chapter 1.4 --- Noise Analysis and Removal Method --- p.19 / Chapter 1.4.1 --- Noise analysis --- p.19 / Chapter 1.4.2 --- Noise removal: low-pass filtering --- p.22 / Chapter 1.5 --- Other techniques on force measurement --- p.25 / Chapter 1.6 --- References --- p.27 / Chapter Chapter 2 --- Experiments on TIRM Calibration / Chapter 2.1 --- Introduction --- p.30 / Chapter 2.2 --- Pre-Experimental Section --- p.30 / Chapter 2.2.1 --- Glass Surface Preparation Methods --- p.30 / Chapter 2.2.2 --- Experimental Setup --- p.33 / Chapter 2.3 --- Calibration Results and Discussion --- p.36 / Chapter 2.4 --- Conclusions --- p.42 / Chapter 2.5 --- References --- p.43 / Chapter Chapter 3 --- TIRM investigation on polymer-induced collodial interactions / Chapter 3.1 --- Introduction to polymer-induced forces --- p.45 / Chapter 3.1.1 --- Non-absorbing case - depletion force --- p.46 / Chapter 3.1.2 --- Attached polymer layers --- p.49 / Chapter 3.2 --- Applications of TIRM in polymer-mediated colloidal interactions --- p.54 / Chapter 3.2.1 --- Measurements on depletion force --- p.54 / Chapter 3.2.2 --- Measurements on Steric Forces --- p.56 / Chapter 3.3 --- Direct measurement of thermosensitive Poly(N-isopropylacrylamide)-mediated colloidal interactions with TIRM --- p.56 / Chapter 3.3.1 --- Introduction --- p.56 / Chapter 3.3.2 --- Experimental Section --- p.57 / Chapter 3.3.3 --- Results and Discussion --- p.60 / Chapter 3.3.4 --- Conclusions --- p.73 / Chapter 3.4 --- References --- p.74 / Publication List --- p.77

Gong, Xiangjun = 基於磁鑷和全反射顯微鏡的單粒子追踪微流變方法 / 龔湘君. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese. / Gong, Xiangjun = Ji yu ci nie he quan fan she xian wei jing de dan li zi zhui zong wei liu bian fang fa / Gong Xiangjun.

Often times groups of domain experts, such as scientists and engineers, will develop their own software modules for specialized computational tasks. When these users determine there is a need to integrate the data and computations used in their specialized components with an enterprise data management system, interoperability between the enterprise system and the specialized components rather than re-implementation allows for faster implementation and more flexible change management by shifting the onus of changes to the scientific components to the subject matter experts rather than the enterprise information technology team. The Jython-based RESTful web service API was developed to leverage code reflection to provide access to Python scripts via RESTful web service calls, providing access to any function available in a Python script accessible to the REST server.

Light as a concept is filled with a multitude of interpretations, ideas and possibilities and no matter how technologically progressive we think we are, nature consistently controls our human way of life. We are surrounded by nature and often gain inspiration by the simple things around us. My interest in the phenomena of light and refraction was sparked years ago by Claude Monet?s painting Bathers at La Grenouillere, 1869. It showed simplicity of form and shape, yet emitted a luminosity and radiance of light reflecting off water. This thesis examines the subject of light as an optical phenomenon. My specific aim was to create distorted, ambiguous and conflicting images in my photographs by using the "optical phenomena" of light such as, refraction, diffraction and reflection as a basis for abstracting reality. I wanted to capture the changes that occur when light changes direction due to refractive qualities within a material such as glass, water or plastic, or due to the reflective qualities of a surface. The camera was exploited for its capacity to capture realism, but also to capture and abstract natural phenomenon. The images were enlarged to magnify details and the reality of the physical world was heightened as objects became ambiguous. Design compositional techniques were used to decontextualise objects. I approached this study with the idea that observation and awareness has importance to image making within my design and teaching practice. This thesis presents my project explorations showing the play of light on and through surfaces under different conditions. I have documented this by producing a series of photographic images and a glossary as an aid in the practice of design education.

<p>Undersökningen lyfter fram sambanden mellan individens olika sätt att orientera sin sinnesstämning och empati. Då empati har ett betydande inslag i mötet individer emellan har fokus inriktats på individer med en yrkesroll som ledare då de har skäl att hantera sin empati. Undersökningen baserades på en egen utformad enkät med 33 påståenden som ringade in relevanta begrepp. Denna besvarades av 105 deltagare från sju olika företag. Undersökningen visade ett signifikant samband mellan ett reflekterande sätt och empati. För att individen skall bli medveten om sin empati krävs det att denna bearbetas kognitivt. Resultatet visade att detta snarare sker genom ett reflekterande sätt än om individen grubblar och ältar sina känslor och tankar. Ändringar i begreppens innehåll var nödvändiga för att nå högre reliabilitet.</p>

Thesis (Ed. D.)--Illinois State University, 2005. / Title from title page screen, viewed April 12, 2007. Dissertation Committee: Linda Lyman (chair), Wendy Troxel, Joe Pacha, Sally Weber. Includes bibliographical references (leaves 122-131) and abstract. Also available in print.

Undersökningen lyfter fram sambanden mellan individens olika sätt att orientera sin sinnesstämning och empati. Då empati har ett betydande inslag i mötet individer emellan har fokus inriktats på individer med en yrkesroll som ledare då de har skäl att hantera sin empati. Undersökningen baserades på en egen utformad enkät med 33 påståenden som ringade in relevanta begrepp. Denna besvarades av 105 deltagare från sju olika företag. Undersökningen visade ett signifikant samband mellan ett reflekterande sätt och empati. För att individen skall bli medveten om sin empati krävs det att denna bearbetas kognitivt. Resultatet visade att detta snarare sker genom ett reflekterande sätt än om individen grubblar och ältar sina känslor och tankar. Ändringar i begreppens innehåll var nödvändiga för att nå högre reliabilitet.

Through a case study of the experiences of eight undergraduate students participating in the St. Thomas More College/Intercordia Canada international community service-learning programme (2008), this thesis seeks to assess whether the participants learning has proved transformational through an analysis of the forms and processes of transformative learning as developed by Richard Kiely (2002, 2004, 2005). Content analysis of semi-structured student interviews (pre and post-participation), programme materials, student journals, academic reflections and essays reveal transformative shifts across the political, moral, intellectual, cultural, personal and spiritual learning domains. The study adds to the research on international community service-learning through an analysis of Kielys transformative learning theory in a new context, and explores how context affects learning processes. Findings indicate the dynamics of participant vulnerability and acceptance from host communities can provide for transformational relationships of solidarity across difference.

Through a case study of the experiences of eight undergraduate students participating in the St. Thomas More College/Intercordia Canada international community service-learning programme (2008), this thesis seeks to assess whether the participants learning has proved transformational through an analysis of the forms and processes of transformative learning as developed by Richard Kiely (2002, 2004, 2005). Content analysis of semi-structured student interviews (pre and post-participation), programme materials, student journals, academic reflections and essays reveal transformative shifts across the political, moral, intellectual, cultural, personal and spiritual learning domains. The study adds to the research on international community service-learning through an analysis of Kielys transformative learning theory in a new context, and explores how context affects learning processes. Findings indicate the dynamics of participant vulnerability and acceptance from host communities can provide for transformational relationships of solidarity across difference.