3,097 research outputs found
Patterns of tooth loss in young Hong Kong adults: a preliminary study based on Prince Philip Dental Hospital patients in 1984, 1998 and 2004
No full textObjective. To describe the change in the patterns of tooth loss among 21- to 25-year-old Hong Kong
dental patients over the 20-year period from 1984 to 2004 inclusive. Materials and methods. The first panoramic radiographs of all young adult patients who registered at the Prince Philip Dental Hospital of Hong Kong in 1984, 1998 and 2004 were viewed and the presence of teeth by tooth type in each patient was recorded. Results. The proportions with a full dentition (32 teeth including the third molars) were 38.4% in 1984, 46.7% in 1998 and 48.2% in 2004; the mean numbers of teeth present were 30.5, 30.8 and 30.7, respectively. The change between 1984 and 2004 is significant (χ2=5.57, df=1, P<0.05), but the change between 1998 and 2004 is not (χ2=0.16, df=1, P=0.69). Differences in the proportions of teeth missing among 1984, 1998 and 2004 subjects were statistically significant (χ2 test, df=2, P<0.05) for all tooth types. The tooth missing rates have decreased over the years for all tooth types, except
premolars and third molars, the missing rate of which has increased. A major portion of these changes occurred during the period between 1984 and 1998. The missing rate in upper premolars was higher for females than males in 1984, 1998 and 2004; the differences being statistically significant between 1998 and 2004. Conclusions. Significant changes in the pattern of tooth loss in the young adult patients seen at the dental hospital between 1984 and 2004 have been detected. There has been a reduction in tooth loss generally for all tooth types, except the premolars
Political participation of working class Chinese marriage migrants in Hong Kong SAR
No full textSince the early 1980s, marriage between Hong Kong men and Mainland Chinese women has become prominent. The majority of Chinese marriage migrants are female. After the reunion with their Hong Kong husbands after several years of waiting for one-way permits in China, the Chinese wives have to undergo another seven years to enjoy the right of abode. At the same time, these marriage migrants are stigmatized, and hatred and shame will often persist after they obtain permanent residency. Some extraordinary Chinese marriage migrants, who suffer but are far from hopeless, have responded to the unfairness in their own way. Since 2004, a self-organized NGO, Tonggen, has provided free services to working class female Chinese migrants, most of whom are marriage migrants. In order to tackle a variety of cases on the intricate immigration and welfare legislation, Tonggen has learnt to negotiate with the SAR government and cooperate with various local organizations and political figures. So far Tonggen has become an active participant of local democratic politics, which calls for further reflection on the emergent political involvement of working class Chinese immigrants.
The purpose of the study is to investigate how the working class Chinese marriage migrants in Tonggen have created a space in local democratic politics, in which they become able to not only challenge the prevailing anti-immigrant discourses but also actually participate in Hong Kong politics.
The study draws upon mostly primary sources including legal documents and interviews of the members of Tonggen. According to the interviews, relevant news reports and legal documents, the study has made a description of Tonggen participating in Hong Kong politics as a low-budget organization. Tonggen and its members become and act as political subjects. Based on its experience of tackling cases, Tonggen has made various policy advocacies in conferences and consultation sessions held by the SAR government with the help from sympathetic local politicians and in social movements initiated by the other social organizations. Through the established channels of political expression in Hong Kong, the members of Tonggen become able to articulate their demands.
The collective political participation of working class Chinese marriage migrants via NGOs such as Tonggen challenges the existing conception of Chinese immigrants as uninformative and passive political subjects manipulated by either the Chinese government or the pro-establishment camp. This primary research also enables further inquiries into how political participation of working class Chinese immigrants may transform Hong Kong identity politics that have reinforced anti-immigrant discrimination and how they may become part of the global immigrant movements.published_or_final_versionComparative LiteratureMasterMaster of Philosoph
Elastic-DF: Scaling Performance of DNN Inference in FPGA Clouds through Automatic Partitioning
No full textCustomized compute acceleration in the datacenter is key to the wider roll-out of applications based on deep neural network (DNN) inference. In this article, we investigate how to maximize the performance and scalability of field-programmable gate array (FPGA)-based pipeline dataflow DNN inference accelerators (DFAs) automatically on computing infrastructures consisting of multi-die, network-connected FPGAs. We present Elastic-DF, a novel resource partitioning tool and associated FPGA runtime infrastructure that integrates with the DNN compiler FINN. Elastic-DF allocates FPGA resources to DNN layers and layers to individual FPGA dies to maximize the total performance of the multi-FPGA system. In the resulting Elastic-DF mapping, the accelerator may be instantiated multiple times, and each instance may be segmented across multiple FPGAs transparently, whereby the segments communicate peer-to-peer through 100 Gbps Ethernet FPGA infrastructure, without host involvement. When applied to ResNet-50, Elastic-DF provides a 44% latency decrease on Alveo U280. For MobileNetV1 on Alveo U200 and U280, Elastic-DF enables a 78% throughput increase, eliminating the performance difference between these cards and the larger Alveo U250. Elastic-DF also increases operating frequency in all our experiments, on average by over 20%. Elastic-DF therefore increases performance portability between different sizes of FPGA and increases the critical throughput per cost metric of datacenter inference. Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Computer Engineerin
Some sort of barrelledness in topological vector spaces.
No full textby Kin-Ming Liu.Thesis (M.Phil.)--Chinese University of Hong Kong, 1990.Bibliography: leaves 66-67.Chapter §0 --- IntroductionChapter §1 --- Preliminaries and notationsChapter §2 --- A summary on ultra-(DF)-spaces and order-ultra-（DF)-spacesChapter §3 --- " ""Dual"" properties between projective and inductive topologies in topological vector spaces"Chapter §4 --- Application of barrelledness on continuity of bilinear mappings and projective tensor productChapter §5 --- Countably order-quasiultrabarrelled space
A Near-Capacity Differentially Encoded Non-Coherent Adaptive Multiple-Symbol-Detection Aided Three-Stage Coded Scheme
No full textThis paper presents an Irregular Distributed Hybrid Concatenated Differential (Ir-DHCD) coding scheme contrived for the relay aided differential decode-and-forward (DDF) cooperative system using multiple-symbol differential sphere detection (MSDSD), where no channel estimation is required. We proposed a practical design framework for a cooperative system, which is capable of performing close to the network’s corresponding non-coherent Discrete-input Continuous-output Memoryless Channel (DCMC) capacity. An adaptive-window-duration based MSDSD scheme is employed to further reduce the iterative detection complexity. Specifically, upon using the proposed near-capacity system design, the Ir-DHCD coding scheme devised becomes capable of performing within about 1.8 dB from the corresponding single-relay-aided DDF cooperative system’s DCMC capacity
Translation students' use of dictionaries: a Hong Kong case study for Chinese to English translation
No full textThe use of the dictionary and translation are both common language experiences. The dictionary is an indispensable tool to translating. Yet dictionary skills are grossly neglected in translator training, which assumes that students have acquired all the necessary knowledge and skills before training. In order to reveal the situation in Hong Kong, this case study attempts to investigate the dictionary use pattern of 1 07 translation students from five local universities for Chinese to English translation, and the dictionary consultation process of four respondents. Triangulation methods were employed: questionnaire survey, interview, think-aloud protocol, and performance exercise. A coding system for think-aloud protocols has be~ adopted from Thumb (2004), with modifications for Chinese-English dictionary use for production. Results found that most of the respondents had not been trained to use the Chinese-English dictionary, and that they had difficulties in using it for Chinese to English translation. Curricular assessment discovered a gap between student needs in dictionary skills and the curriculum. Pedagogical recommendations are made, and the notion of Dictionary Use Competence is proposed for translation students, while dictionary skills should be treated as a ·Iearning strategy across the curriculum from the primary to university levels. The study contributes to the teaching and learning of dictionary skills, with special relevance to Chinese-English translation, and to the research on dictionary use for production in terms of the language combination of Chinese/English, and to the method of introspection
Hydrodynamical turbulence by fractal fourier decimation
No full textWe present a systematic numerical investigation of high-resolution 3D isotropic and homogeneous turbulence resolved on a decimated set of Fourier modes. Fractal decimation acts to decrease the effective dimensionality of the flow by allowing triadic interactions only in a set of Fourier modes N(k) proportional to k^DF for large k. While keeping the symmetries of the original 3D Navier-Stokes equations unchanged, a dramatic change in small-scale statistics is detected at decreasing the fractal dimension DF . Already at fractal dimension DF = 2.8, a global self-similar behaviour is observed in the inertial range of scales, the consequence of such transition are the restoration of the scaling symmetry and vorticity distribution that becomes close to Gaussian. We relate the results to the different roles of local vs non-local interactions in the energy transfer range
'Response by the author, Daniel F. Vukovich.'
No full textResponse by the author (Vukovich) to a review of Illiberal China (my 2019 monograph
Hong Kong. Postcolonialism. Politics: Blowing Water [吹水], War of Position, or none of the above?
No full textpostprin
DF AND HF LASER SPECTRA
No full textW. B. Roh and K. Narahari Rao, J. Mol. Spectrosc. 49, 317 (1974).""Author Institution: Department of Physics, The Ohio State University; Department of Electrical Engineering, The Ohio State UniversityA pulsed laser was used as a source to study DF and HF infrared laser spectra with a grating spectrometer. The rotational structure observed for the 1-0, 2-1, and 3-2 bands of DF, and the 1-0 and 2-1 bands of HF has been measured by following a procedure similar to that used for the CO laser Molecular constants derived by combining these laser measurements with other available data will be presented
- …
