Dissertations / Theses on the topic 'Clocks and watches'

My research topic concerns how learners use the analogue clock (as a human tool) to make meaning of clock time. This study is informed by a Vygotskian socio-cultural framework to learning and development based on the concept that human activities take place in cultural contexts and is mediated by tools. In this qualitative study I report on the learners meaning making of analogue clock time using the physical clock. This study was carried out at a South African primary school through an intervention programme after school. The research employed a case study method. It involved a purposeful sample of 4 learners (n=38) from the grade four class group based on their response to a baseline assessment task. The selected sample of learners included learners across the ability spectrum to gain rich insight into how learners make meaning of analogue clock time. Data collection and analysis was done through an interpretive approach. The video-taped interviews and intervention programme was my main instrument of data collection. Other research instruments included document analysis of responses to baseline assessment tasks. These research tools yielded the data collected and also allowed for triangulation. My research topic explored how the learners make meaning of analogue clock time. In particular the two-way movement of how the learners use the physical tool namely the analogue clock to develop meaning and how the clock mediates clock knowledge in return. The findings of the study suggest that learners’ find it difficult to conceptualise analogue clock symbols and signs, in particular, in Afrikaans the half hour concept, in relation to the two hands. The physical analogue clock is also important to support and extend clock knowledge in solving time-related problems. This shows the power of the analogue clock to mediate meaning making of clock time in young learners. Because of its potential to improve teaching and learning analogue clock time in primary school it is therefore recommended that the analogue clock time be further researched in South Africa.

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O relógio inteligente é um novo tipo de eletrônico para o punho com funcionalidades idênticas as de um celular, que também é utilizado por motoristas durante a tarefa de condução do veículo, representando uma nova forma de distração do motorista, e risco aumentado de acidentes no trânsito; uma demanda da ergonomia cognitiva. O objetivo do presente estudo foi determinar o efeito do uso de relógio inteligente sobre motoristas experientes e novatos durante a condução simulada de automóvel, na tarefa de seguir o automóvel à frente, através da análise de movimento dos olhos, da cabeça e do desempenho na condução. Vinte motoristas experientes (EXP) e vinte motoristas novatos (NOV) realizaram a tarefa de seguir um carro à frente por um percurso de 2 km em quatro condições: somente seguir o carro (CAR), seguir o carro e receber uma notificação de texto no relógio inteligente (NOT), seguir o carro que freará de modo inesperado e brusco (FRE) e seguir o carro que freará de modo inesperado e brusco e, adicionalmente, receber uma notificação de texto (FNOT). Os dados do olhar, da cabeça e do desempenho na condução do automóvel foram submetidos à análise de variância de grupo (EXP, NOV) por condição de freada (CAR, FRE) por condição de notificação (NOT, FNOT) por tentativa (1, 2, 3). O desempenho da condução de veículo foi afetado pela freada do carro à frente e pelo uso do relógio inteligente ao receber notificação. Ao receber uma notificação no relógio, mudava-se o foco atencional do trânsito para realizar a leitura de texto, aumentando as chances de ocorrência de acidente. Experientes e novatos apresentaram diferentes estratégias para viabilizar a leitura do texto no relógio; experientes mostraram-se mais eficientes, mas ambos grupos desviaram o olhar da pista em detrimento da atenção, o que resultou em condição de risco.
Smartwatch is a new kind of electronic to be worn on the wrist with features similar to those of mobile phones, they are also being used by drivers during their driving task, representing a new form of distraction for drivers and increasing chances of traffic accidents. The goal of this project is to determine the use effect of smartwatches on experienced and novice drivers while driving on a simulated driving task following a vehicle ahead, through the analysis of eye and head movement and driving performance in a driving simulator. Twenty experienced drivers (EXP) and twenty novice drivers (NOV) will follow a car ahead for 2 kilometers in four conditions: follow a car ahead (CAR), follow a car ahead and receive a text message notification on the smartwatch (NOT), follow a car ahead that brakes abruptly (FRE) and follow a car ahead and receive a text message notification on the smartwatch while the car ahead brakes abruptly (FNOT). The gaze, head movement and driving performance data will be subjected to group variance analysis (EXP, NOV), with or without braking (CAR, FRE), with or without smartwatch notification (NOT, FNOT) and by trial (1, 2, 3). The diver’s performance showed to be affected by the car’s ahead braking and by the use of smartwatch during reading tasks. Attentional focus was shifted away from the road to the smartwatch when drivers tried to perform the reading task, thus increasing the chances of an accident. Experienced and novice drivers used different strategies to perform the reading task while driving; experienced drivers were more efficient but both groups shifted their gaze away from the road in detriment of their attention to the traffic, which resulted in risk conditions.

This thesis provides a reinterpretation of early modern clock and watch dials on the basis of use, in response to an immense gap left in horological historiography where dial designs have been dismissed as insignificant beyond aesthetic concerns. By 1770 a standard design had emerged, which represented hours, minutes and seconds. Yet, between 1550 and 1770 dials represented combinations of calendrical, lunar and astronomical information using multiple concentric rings, subsidiary dials and apertures. Change was gradual, but significant. I have developed a unique methodology for unlocking the meaning embedded within these early combinations and the significance of dial change, by closely comparing a selection of clock and watch dials from different museum collections with printed paper sources such as almanacs, astronomical, astrological and mnemonic diagrams, craft books, and art works. Multiple concentric rings and subsidiary dials bore similarity to circular and tree diagrams and were conducive to perceptions of stepped knowledge acquisition. Both media became plainer in appearance from the mid-late seventeenth century as these perceptions declined. Some makers utilised different formats to generate trust in their work, from alternative hour schemes during the late-sixteenth century to imitation of precision timepieces from the early-eighteenth century. Others utilised touch-pins, during the mid-late sixteenth century, and illumination of numerals, from the late-seventeenth to the early-eighteenth century, to enable users who were otherwise excluded. The calendar, lunar and astronomical functions were useful as a prompt for recalling astrological advice up until its decline during the mid-late seventeenth century. After which, the three functions enjoyed different lifespans, while they continued to be useful for other purposes, but none survived to be part of the standard format. It is only through the lens of use and comparison with the wider context that the significance of early modern clock and watch dials can be fully appreciated.

by Chan Ngan-Yung, Juno, Yuen Da-Wai, David.
Thesis (M.B.A.)--Chinese University of Hong Kong, 1992.
Includes bibliographical references (leaves 137-141).
ABSTRACT --- p.ii
TABLE OF CONTENTS --- p.iv
LIST OF FIGURES --- p.viii
LIST OF TABLES --- p.ix
ACKNOWLEDGEMENT --- p.x
INTRODUCTION --- p.1
Objectives of the Research --- p.1
Scope of Work --- p.4
Research Methodology --- p.5
Literature Survey --- p.6
Sources for the Adopted Theoretical Framework --- p.6
Local Researches on Timepieces industry --- p.7
Statistical Information --- p.7
INDUSTRY AND COMPETITIVE ANALYSIS --- p.9
Dominant Economic Characteristics of the Industry Environment --- p.9
Scope of Competitive Rivalry --- p.9
Market Size --- p.10
Market Growth Trend by Watch Type --- p.10
Market Growth Trend by Geographical Location --- p.13
Market Trend Towards Higher-end Products --- p.18
Stage in Product Life Cycle --- p.20
Seasonal Market Demand Pattern --- p.22
Customer Needs and Product Segments --- p.22
Customer Groups --- p.23
Degree of Vertical Integration --- p.24
Ease of Entry or Exit --- p.25
Technology and Innovation --- p.25
Industry Structure --- p.26
Cost Structure --- p.27
Scale Economies --- p.28
Experience Curve Effect --- p.29
Capacity Utilization --- p.29
Industry Profitability --- p.29
Driving Forces Analysis --- p.33
Decline in Long-term Industry Growth Rate --- p.34
Shortening Product Life Cycle --- p.34
Consumers Moving Up-market --- p.34
Competitive Forces and their Strategic Implications --- p.35
Rivalry Among Existing Competitors --- p.35
Threat of Product Substitution --- p.38
Potential Entry of New Competitors --- p.39
Bargaining Power of Suppliers --- p.39
Bargaining Power of Buyers --- p.40
Strategic Implications --- p.40
Strategic Group Mapping --- p.41
Competitor Analysis --- p.45
Switzerland --- p.45
Japan --- p.49
Taiwan --- p.56
Korea --- p.60
"Thailand, Singapore and Other Asian Countries " --- p.62
Key Success Factors of the Industry --- p.67
Industry Prospects and Overall Attractiveness --- p.67
SITUATION ANALYSIS FOR HONG KONG AND THE PRC TIMEPIECES INDUSTRY --- p.72
Situation Analysis of Hong Kong's Timepieces industry --- p.72
Evaluation of the Present Strategy --- p.72
SWOT Analysis --- p.77
Potential internal strengths --- p.77
"Core competencies in marketing, prompt delivery and flexibili " --- p.77
Well thought of by buyers . --- p.79
Proximity to an abundant cheap labor market --- p.79
Proximity to a large consumer market with high growth potenti --- p.80
Potential internal weaknesses --- p.81
Over-dependence on several traditional markets --- p.81
Lagging behind in production technology --- p.81
Lack of key skills in producing movement and module parts --- p.84
Over-dependence on OEM sales --- p.85
Shortage of labor and experienced product designers --- p.85
Rising labor and land costs --- p.85
Political uncertainty --- p.86
Potential External Opportunities --- p.86
Serve The End-user Customer Group --- p.86
Increase sales in new markets or segments --- p.86
Falling trade barriers in attractive foreign markets --- p.87
Reducing barrier of entry to higher end market segment --- p.87
Possible success of the new country-of-origin rules --- p.88
Forward and backward vertical integration --- p.88
Potential external threats --- p.89
Rapid rise of lower-cost foreign competitors --- p.89
Slower market growth of the low end segment --- p.89
Possible adverse shifts in trade policies of foreign governments --- p.90
Vulnerability to recession and business cycle --- p.90
Strategic Cost Analysis and Competitive Strength Assessment --- p.90
Strategic Issues Facing the Industry --- p.91
Management of the unbalanced product portfolio --- p.91
Penetration into new markets --- p.94
Management of increasingly short product life cycle and quality awareness --- p.94
Situation Analysis of the PRC's Timepieces industry --- p.95
An Account of the PRC's Timepieces industry --- p.95
History --- p.95
Industry structure --- p.96
Strategic industry for development --- p.96
Increased awareness to product quality --- p.100
Increased emphasis on market economy --- p.101
Watches and clocks export --- p.102
Increase Tie with Hong Kong --- p.103
Evaluation of the present strategy --- p.103
SWOT Analysis --- p.104
Potential internal strengths . --- p.104
Access to economies of scale --- p.104
Shield from strong competition in domestic market --- p.104
"Cost advantages in labor, land and raw materials " --- p.105
Large domestic market --- p.105
Strong determination to upgrade industry --- p.106
Close to Hong Kong --- p.106
Good relationship with the third world and the Eastern Europe . . --- p.107
Potential internal weaknesses --- p.107
Defective export policy --- p.107
Lack of expertise and low technology levels --- p.107
Low or no profitability --- p.108
Weak in product design --- p.108
Irrational pricing system --- p.109
Outdated state legislation --- p.109
A very narrow product line --- p.109
"Weak in quality control, delivery and market image " --- p.110
Weak in marketing --- p.110
Potential external opportunities --- p.110
Increase sales in all markets --- p.110
Dominance in low end mechanical watch segment --- p.111
Expand product line to meet broader range of customer needs --- p.111
Potential external threats --- p.112
Entry of lower-cost foreign competitors --- p.112
Adverse shifts in foreign exchange rates --- p.112
Retreat of foreign investors --- p.112
Strategic Cost Analysis and Competitive Strength Assessment --- p.113
Strategic Issues Facing the Industry --- p.114
Upgrading the whole industry in all aspects --- p.114
Management of Unbalanced Product Portfolio --- p.114
STRATEGIC PLANNING FOR THE TIMEPIECES INDUSTRY OF HONG KONG AND THE PRC --- p.115
Crafting Competitive Strategy for Hong Kong's Timepieces industry --- p.115
Strategies to Attain Cost Advantages --- p.116
Buying raw materials and movements from the PRC --- p.117
Reducing expenses in inbound and outbound logistics --- p.118
Shifting production to the PRC --- p.119
Reducing marketing expenses --- p.119
Reducing financial cost --- p.120
Reducing administration cost --- p.120
Strategies to Attain Differentiation Advantage --- p.121
Improvement in Technical and Design Ability --- p.121
Implementation of ISO 9000 quality assurance system --- p.122
Improvement in customers' service --- p.123
Other Strategies to Explore Opportunities and Reduce Threats --- p.124
Joint development of the new markets with the PRC --- p.124
Increasing sales to the PRC --- p.125
Capture markets in Latin America and SE Asia --- p.126
Crafting Competitive Strategy for the PRC --- p.126
Strategic Alliance between Hong Kong and the PRC --- p.127
CONCLUSIONS --- p.129
Moves in Response to Changing Market Conditions --- p.132
Approach to Vertical Integration --- p.132
Moves to Secure a Competitive Advantage --- p.132
Recent Moves to Strengthen Competitive Position --- p.133
BIBLIOGRAPHY --- p.137

Fu, Kin Chung Denny.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2008.
Includes bibliographical references (leaves 119-123).
Abstracts in English and Chinese.
Abstract --- p.i
摘要 --- p.iii
Acknowledgements --- p.iv
Table of Contents --- p.v
List of Figures --- p.viii
List of Tables --- p.xi
Chapter Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Objective --- p.1
Chapter 1.2 --- Fundamental knowledge of multibody dynamics --- p.2
Chapter 1.3 --- Escapement mechanisms --- p.5
Chapter 1.3.1 --- Time keeping accuracy and stability factors --- p.7
Chapter 1.3.2 --- Estimations of moment of inertia --- p.9
Chapter 1.3.3 --- Other simulations and analyses --- p.15
Chapter 1.4 --- Thesis outlines --- p.15
Chapter 1.5 --- Chapter summary --- p.17
Chapter Chapter 2 --- Multibody Dynamics --- p.18
Chapter 2.1 --- The unilateral corner law of impact --- p.18
Chapter 2.2 --- The Coulomb's friction --- p.19
Chapter 2.3 --- "Slip, stick, and slip reversal phenomena" --- p.20
Chapter 2.4 --- The coefficients of restitution --- p.20
Chapter 2.5 --- Ways of formulating multiple contacts --- p.22
Chapter 2.6 --- Integration procedure --- p.22
Chapter 2.7 --- The P. Pfeiffer and Ch. Glocker's approach --- p.23
Chapter 2.7.1 --- Kinematics calculation --- p.23
Chapter 2.7.2 --- Configuration index --- p.26
Chapter 2.7.3 --- Motion without contact --- p.27
Chapter 2.7.4 --- Motion for detachment and slip-stick transition and LCP formulation --- p.27
Chapter 2.7.5 --- Motion for impact and LCP formulation --- p.37
Chapter 2.8 --- Solving LCP --- p.50
Chapter 2.9 --- Chapter summary --- p.52
Chapter Chapter 3 --- Development of the Simulation Tool --- p.54
Chapter 3.1 --- Kinematics calculation --- p.54
Chapter 3.1.1 --- Geometric definitions --- p.55
Chapter 3.1.2 --- Line-to-line contact --- p.59
Chapter 3.1.3 --- Arc-to-line contact --- p.62
Chapter 3.1.4 --- Kinematics calculation procedures --- p.67
Chapter 3.2 --- Obtaining the solutions --- p.72
Chapter 3.3 --- Revised numerical treatment for LCP solving --- p.73
Chapter 3.4 --- Integration procedure of simulation --- p.74
Chapter 3.5 --- Verification example --- p.76
Chapter 3.5.1 --- Classical mechanics approach --- p.76
Chapter 3.5.2 --- Pre-calculation before application --- p.79
Chapter 3.5.3 --- Simulation results --- p.81
Chapter 3.6 --- Chapter summary --- p.83
Chapter Chapter 4 --- Application to Swiss Lever Escapement --- p.84
Chapter 4.1 --- Working principle of Swiss lever escapement --- p.84
Chapter 4.2 --- Simulation of Swiss lever escapement --- p.87
Chapter 4.2.1 --- Pre-calculation of kinematics --- p.88
Chapter 4.2.2 --- Simulation results --- p.89
Chapter 4.3 --- More simulations --- p.102
Chapter 4.3.1 --- Theoretical optimal peak amplitudes --- p.102
Chapter 4.3.2 --- Simulation of coaxial escapement --- p.103
Chapter 4.3.3 --- Simulations with different simulation parameters --- p.109
Chapter 4.3.4 --- Relation of input complexity and computational time --- p.111
Chapter 4.4 --- Chapter summary --- p.113
Chapter Chapter 5 --- Conclusions and Future works --- p.114
Chapter 5.1 --- Conclusions --- p.114
Chapter 5.2 --- Future works --- p.117
Bibliography --- p.119

Yang, Fan.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.
Includes bibliographical references (leaves 73-77).
Abstracts in English and Chinese.
Abstract --- p.I
摘要 --- p.III
Table of Contents --- p.V
List of Figures --- p.i
List of Tables --- p.A
Chapter 1. --- Introduction --- p.1
Chapter 1.1. --- Literature Review --- p.1
Chapter 1.2. --- Project Background --- p.10
Chapter 1.3. --- Objectives --- p.14
Chapter 2. --- Design of the micro assembly machine --- p.16
Chapter 2.1. --- Aspects that need to be met --- p.16
Chapter 2.2. --- Hardware of the micro assembly machine --- p.17
Chapter 2.2.1. --- The vision system --- p.18
Chapter 2.2.2. --- The control system --- p.19
Chapter 2.2.3. --- The Actuating System --- p.21
Chapter 2.2.3.1. --- The gripper --- p.22
Chapter 2.2.3.2. --- The three axes --- p.28
Chapter 2.2.3.3. --- The workbench --- p.31
Chapter 2.2.4. --- The complete structure of the micro assembly machine --- p.32
Chapter 2.3. --- The main features of the micro assembly machine --- p.34
Chapter 3. --- Implementation --- p.35
Chapter 3.1. --- Vision system --- p.35
Chapter 3.2. --- Setting up the vision system --- p.36
Chapter 3.3. --- Efficiency and form of the transferred data --- p.38
Chapter 3.4. --- Control system --- p.39
Chapter 3.4.1. --- Structure of the control system --- p.40
Chapter 3.4.2. --- System control process --- p.44
Chapter 3.4.3. --- The GUI --- p.45
Chapter 3.4.4. --- Data processing --- p.48
Chapter 3.5. --- Cooperation between the vision system and the control system --- p.49
Chapter 4. --- Experimental results --- p.51
Chapter 4.1 --- Accuracy in the x and y directions --- p.51
Chapter 4.2 --- Effect of the vision system on accuracy --- p.57
Chapter 4.3 --- Depth of the assembled ruby bearings --- p.62
Chapter 4.4 --- Gradient of the rubies --- p.65
Chapter 4.5 --- Analysis of the experimental data --- p.68
Chapter 5 --- Conclusion and Future Work --- p.70
References --- p.73

Su, Shuang.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.
Includes bibliographical references (leaves 100-106).
Abstracts in English and Chinese.
Chapter Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Background --- p.1
Chapter 1.2 --- Objective --- p.2
Chapter 1.3 --- Methodology --- p.3
Chapter Chapter 2 --- Literature Survey --- p.5
Chapter 2.1 --- The Escapement --- p.5
Chapter 2.2 --- Signature Analysis of Mechanical Watches -- Traditional Methods and Existing Systems --- p.10
Chapter 2.2.1 --- Estimating Rate Deviation --- p.10
Chapter 2.2.2 --- Measuring Beat Error --- p.11
Chapter 2.2.3 --- Error Detection with a Graphical Diagram --- p.12
Chapter 2.2.4 --- Analyzing Watch Ticks --- p.13
Chapter 2.3 --- Time-Frequency Distributions and Reassignment --- p.14
Chapter 2.3.1 --- Time-Frequency Distributions --- p.14
Chapter 2.3.2 --- Reassignment Method --- p.18
Chapter 2.4 --- Finite Element Analysis --- p.19
Chapter Chapter 3 --- Signature Analysis of Mechanical Watch Movement --- p.21
Chapter 3.1 --- Time-Domain Analysis: Endpoint Detection --- p.21
Chapter 3.2 --- Time-Domain Analysis: Error Detection with a Graphical Chart --- p.27
Chapter 3.3 --- Analyzing Ticks: from Time-Domain Analysis to Time-Frequency Analysis --- p.31
Chapter Chapter 4 --- Reassigned Time-Frequency Distributions --- p.34
Chapter 4.1 --- Spectrogram --- p.34
Chapter 4.2 --- Morlet Scalogram --- p.35
Chapter 4.3 --- Smoothed Pseudo-Wigner-Ville Distribution --- p.36
Chapter 4.4 --- Reassignment principle --- p.37
Chapter 4.5 --- Reassigned Spectrogram (RSP) --- p.39
Chapter 4.6 --- Reassigned Morlet Scalogram --- p.40
Chapter 4.7 --- Reassigned SPWV --- p.40
Chapter 4.8 --- Performance Evaluation of Time-frequency Distributions --- p.41
Chapter Chapter 5 --- Modal analysis and simulation results --- p.47
Chapter 5.1 --- FEA Eigensystems --- p.47
Chapter 5.2 --- Modal Analysis in ANSYS --- p.48
Chapter 5.3 --- Transient Dynamic Analysis of Watch Parts in ANSYS --- p.50
Chapter Chapter 6 --- Fault Detection Examples --- p.60
Chapter 6.1 --- Example I --- p.60
Chapter 6.2 --- Example II --- p.64
Chapter Chapter 7 --- System Development --- p.69
Chapter Chapter 8 --- Conclusions --- p.74
Appendix I --- p.77
Chapter 1. --- GUI Layout of the CUHK-IPE Watch Signature Analyzer (WTimer.fig) : --- p.77
Chapter 2. --- Main Function of CUHK-IPE Watch Signature Analyzer (WTimer.m): --- p.78
Chapter 3. --- Other Functions Called by the Main Function: --- p.85
Chapter 3.1 --- Function for Split Signal up into (Overlapping) Frames (enframe.m):…… --- p.86
Chapter 3.2 --- Function for Detecting BPH of the Watch (bph´ؤdetection.m): --- p.86
Chapter 3.3 --- Function for Calculation the Rate Deviation and Beat Error of the Watch (rate4_6.m): --- p.89
Chapter 3.4 --- Function for Calculating the RSP of the Signal (tfrrsp.m): --- p.95
Chapter 3.5 --- Window Generation Function (tftb_window.m): --- p.97
References --- p.100

M.B.A.
Increased environmental pressure in a firms' local market are forcing many companies to consider markets outside of their own to do maximize their profitability. According to Henisz (2000) when expanding internationally, a firm's management often must contend with a new culture, a new language, a new social system, new market structures, and a new political system. Titan, a premier brand in the Indian sub-continent aspires to assess the Gulf Cooperation Countries (GCC) market for watches. Despite global market recessionary trends, the luxury watch market in the GCC reflects a constant thirty percent increase in business over the previous year, as measured on a monthly comparative basis. The research will indicate that Titan cannot simply apply the local strategies used in India, as this global market possesses different characteristics to those experienced in the GCC, the importance if brand utility may provide a distinct differential over the major competitors in this market. Though the model that is derived will be based on the Titan experience, it will also be applicable to other items in the luxury goods market, and may be utilised to facilitate market entry for all luxury goods which will be categorised in the same band as watches, examples of these include fashion accessories, sunglasses, perfumes and jewellery. The aim of the study was to develop a model to guide the market entry process for new watch brands under the Titan umbrella into the GCC market.

Among various non-smooth dynamic systems, the periodically forced oscillation system with impact is perhaps the most common in engineering applications. Usually it has an oscillator with fixed or unfixed stops. The dynamics becomes complicate due to the impact against the stops. Sometimes it leads to bifurcation and even turns to chaos. Its present applications include MEMS switch device, escapement in watch movement and so on.
As a branch of mechanics, the multi-body dynamic system is well-studied. In particular, the non-smooth dynamical system attracts many researchers because of its importance and diversity. The main behaviours of such a system include contact (slip-stick motion), friction and impact. Although various models have been developed for these behaviours and their results are often satisfactory, the truth is that they are still far from completion. In the past twenty some years, various new methods have been developed. However, none of them is universally applicable. One of the difficulties is that there are a number of explicit discontinuities, such as: (a) Coulomb friction gives a discontinuous law for the forces as a function of velocities, and (b) The contact conditions give forces that are not only discontinuous in position, but also unbounded and give rise to discontinuities in the velocities.
This thesis presents a systematic study on the periodically forced oscillation system with impact. Various existing methods are discussed and compared. In particular, impulsive differential equation, Poincare map and perturbation theory are applied. Two practical cases are included: a first-order system and the Swiss lever escapement mechanism. The latter has significant engineering value as the Swiss level escapement is the key component of mechanical watch movement. The precision dynamic model has very high numerical accuracy in describing/predicting their dynamics. The research helps to optimize the design of a commercial product. The model is validated by means of experiment.
Fu, Yu.
Adviser: Du Ruxu.
Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3745.
Thesis (Ph.D.)--Chinese University of Hong Kong, 2008.
Includes bibliographical references (leaves 137-142).
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 in English and Chinese.
School code: 1307.

Chan, Ngai Shing.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.
Includes bibliographical references (leaves 67-70).
Abstracts in English and Chinese.
Abstract --- p.I
摘要 --- p.III
List of Figures --- p.VI
List of Tables --- p.VIII
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Background Information --- p.2
Chapter 1.1.1 --- Project Background --- p.2
Chapter 1.1.2 --- Literature Review --- p.4
Chapter 1.1.3 --- Background on Gear Hobbing --- p.10
Chapter 1.1.4 --- Traditional gear hobbing machines --- p.12
Chapter 2 --- Design and Testing of the MMT system --- p.15
Chapter 2.1 --- Specifications of the MMT system --- p.16
Chapter 2.1.1 --- Overall Configuration --- p.18
Chapter 2.1.2 --- Linear Actuation --- p.18
Chapter 2.1.3 --- Main Spindle Assembly --- p.19
Chapter 2.1.4 --- Tool Plate Assembly --- p.20
Chapter 2.1.5 --- Motion Control --- p.22
Chapter 2.2 --- Main Features --- p.24
Chapter 2.2.1 --- Mechanically Decoupled Gear Hobbing --- p.24
Chapter 2.2.2 --- Single Setup for Non-planar Gears --- p.26
Chapter 2.2.3 --- Quality Assurance by Computer Simulation --- p.27
Chapter 2.3 --- Turning Test --- p.28
Chapter 2.3.1 --- Experiment Results --- p.29
Chapter 2.3.2 --- Tornos' Performance --- p.30
Chapter 2.3.3 --- Estimation of Cutting Force and Workpiece Deflection --- p.32
Chapter 2.4 --- Synchronization Test --- p.33
Chapter 2.4.1 --- Experimental Results --- p.34
Chapter 2.5 --- Gear Hobbing Test --- p.36
Chapter 3 --- Diagnostic Tool: Gear Hobbing Simulation --- p.40
Chapter 3.1 --- Simulation Model --- p.41
Chapter 3.2 --- Simulations with Process Defects --- p.44
Chapter 3.2.1 --- Asynchronous motion between tool and workpiece spindle --- p.44
Chapter 3.2.2 --- Pitch error of the cutter hob --- p.45
Chapter 3.2.3 --- Tool spindle run-out error --- p.47
Chapter 3.2.4 --- Combination of process defects --- p.49
Chapter 3.3 --- Experiment Validation --- p.50
Chapter 4 --- Technical know-hows --- p.55
Chapter 4.1 --- Premature Part Break-off --- p.55
Chapter 4.2 --- Tool Alignment and Centering --- p.58
Chapter 4.2.1 --- Two-turns Aligning Algorithm --- p.59
Chapter 5 --- Conclusion and Future Work --- p.63
References --- p.67
Publication Record --- p.71
Appendix --- p.72

by Chan Lung Anthony, Ho Shun-Wah Montgomery.
Thesis (M.B.A.)--Chinese University of Hong Kong, 1992.
Includes bibliographical references.
TABLE OF CONTENTS --- p.i
CHAPTERS
Chapter I. --- INTRODUCTION --- p.1
Chapter II. --- METHOD --- p.5
Chapter III. --- MARKET PROFILE --- p.7
Chapter IV. --- PRODUCT PROFILE --- p.12
Chapter V. --- CUSTOMER PROFILE --- p.16
Chapter VI. --- COMPANY PROFILE --- p.20
Chapter VII. --- PRODUCT POSITIONING AND TARGET MARKET SELECTION --- p.22
Chapter VIII. --- COMPANY'S MISSION AND GOALS --- p.27
Chapter IX. --- MARKETING OBJECTIVES --- p.28
Chapter X. --- PRODUCT OBJECTIVES AND STRATEGIES --- p.29
Chapter XI. --- PRICE OBJECTIVES AND STRATEGIES --- p.33
Chapter XII. --- PROMOTION OBJECTIVES AND STRATEGIES --- p.36
Chapter XIII. --- SALES FORCE OBJECTIVES AND STRATEGIES --- p.40
Chapter XIV. --- DISTRIBUTION OBJECTIVES AND STRATEGIES --- p.43
Chapter XV. --- CONTROL --- p.47
Chapter XVI. --- ADVERTISING PLAN --- p.48
APPENDIX
Chapter 1. --- FINDINGS OF QUESTIONNAIRE ON TARGET GROUP --- p.53
Chapter 2. --- QUESTIONNAIRE --- p.56
Chapter 3. --- SUMMARY OF INTERVIEW WITH HENRY DUONG --- p.63
Chapter 4. --- EFFECTIVE COMPARISON AMONG MEDIA --- p.64
Chapter 5. --- EFFECTIVENESS COMPARISON AMONG NEWSPAPERS --- p.65
Chapter 6. --- EFFECTIVENESS COMPARISON AMONG MEDIA PRODUCT --- p.66
Chapter 7. --- SPECIALISED/VERTICAL PUBLICATION --- p.67
Chapter 8. --- READERSHIP PROFILE --- p.68
Chapter 9. --- FIELD SURVEY OF PRICES OF WATCHES IN HONG KONG --- p.71
BIBLIOGAPHY --- p.72

Ko, Pui Hang.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2008.
Includes bibliographical references (leaves 86-90).
Abstracts in English and Chinese.
Chapter 1. --- Introduction --- p.1
Chapter 1.1 --- Micro bearing in precision engineering --- p.1
Chapter 1.2 --- Micro spiral spring --- p.5
Chapter 1.3 --- Outline of the thesis --- p.9
Chapter 2. --- Mainspring Segment with Carbon Nanotube Coating --- p.10
Chapter 2.1 --- Introduction --- p.10
Chapter 2.2 --- Coating on the mainspring --- p.12
Chapter 2.2.1 --- Experimental Setup for Finding the Young's Modulus --- p.12
Chapter 2.2.2 --- Elastic Modulus of the mainspring without coating --- p.15
Chapter 2.2.3 --- Elastic Modulus of the mainspring with coating --- p.18
Chapter 2.2.4 --- Thickness of the coating --- p.19
Chapter 2.3 --- Elastic deformation of mainspring --- p.22
Chapter 2.3.1 --- Mathematical Model Derivation --- p.24
Chapter 2.3.2 --- Data Analysis --- p.35
Chapter 2.4 --- Summary --- p.38
Chapter 3. --- FEA of the Spiral Spring Structure --- p.53
Chapter 3.1 --- Introduction --- p.53
Chapter 3.2 --- Model Formation --- p.55
Chapter 3.2.1 --- Preprocess --- p.56
Chapter 3.2.2 --- Solver --- p.60
Chapter 3.2.3 --- Post-process --- p.71
Chapter 3.3 --- A Comparison between Simulation and Experiment Results --- p.74
Chapter 3.3.1 --- Experimental setup --- p.74
Chapter 3.3.2 --- Results Analysis --- p.77
Chapter 3.4 --- Summary --- p.78
Chapter 4. --- Conclusions and Future Work --- p.81
Chapter 4.1 --- Summary of micro spiral spring --- p.81
Chapter 4.2 --- Contributions --- p.83
Chapter 4.3 --- Future work --- p.84
Bibliography --- p.86
Appendix --- p.91
Chapter A1 --- "Specification of CSM Instrument, Swiss, Variocouple" --- p.91
Chapter A2 --- Matlab® program of the spiral spring segment FEA --- p.91
Chapter A3 --- "The paper: ""Nano-Bearing: A New Type of Air Bearing with Flexure Structure""" --- p.99

Tam, Lam Chi.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2008.
Includes bibliographical references (leaves 85-88).
Abstracts in English and Chinese.
Chapter 1. --- Introduction --- p.1
Chapter 1.1. --- Background --- p.1
Chapter 1.2. --- Objectives --- p.5
Chapter 2. --- Literature Survey --- p.7
Chapter 2.1. --- Existing Virtual Libraries --- p.7
Chapter 2.2. --- Challenges --- p.13
Chapter 3. --- Virtual Library of Mechanical Timepieces --- p.15
Chapter 3.1. --- Structure of the Virtual Library --- p.16
Chapter 3.2. --- Mechanical Clock Escapements --- p.19
Chapter 3.2.1. --- Graham Escapement --- p.19
Chapter 3.3. --- Mechanical Watch Escapements --- p.21
Chapter 3.3.1. --- English Lever Escapement --- p.21
Chapter 3.3.2. --- Swiss Lever Escapement --- p.24
Chapter 3.3.3. --- Daniels Co-Axial Double-Wheel Escapement --- p.26
Chapter 3.3.4. --- Spring Detent Escapement --- p.31
Chapter 3.3.5. --- Cylinder Escapement --- p.35
Chapter 3.3.6. --- Verge Escapement --- p.41
Chapter 3.4. --- Accessories --- p.46
Chapter 3.4.1. --- Automatic Winding System --- p.46
Chapter 3.4.2. --- Moon Phase Mechanism --- p.65
Chapter 3.5. --- Chapter Summary --- p.71
Chapter 4. --- Implementations --- p.73
Chapter 4.1. --- CAD Modeling of the Escapement Structure --- p.73
Chapter 4.2. --- Website Design --- p.78
Chapter 4.3. --- An Application --- p.79
Chapter 5. --- Conclusions --- p.82
References --- p.85
Appendix A --- p.89
Appendix B --- p.101

碩士
逢甲大學
中國文學所
93
The research direction of this essay is to develop into the foundation in clowns changes in the Chinese opera first , and then observe passing on and innovation that clowns performed from the changes course. The main content studied is to take opera directory in successive dynasties as the core, analyse from it the clown''s language , movement , dressing up , props used ,etc. perform the speciality, probe into the training that the clown performed to form. It is to hope to get clown''s intact concept developing , developing in the Chinese opera from it to study the purpose.

碩士
國立臺灣師範大學
美術學系在職進修碩士班
97
Summary: Ever since the eastern and western cultures encountered, the exploration and elaboration about eastern and western painting on space have never been stopped. Aside from the content of painting, in view of the angles that pictures constitute ,we can say the development process of painting is the history of visual space development. Through the space of painting conveys not only the artist’s personal statement, but also the whole generation’s way of thinking and process of evolution. This article applies the image of “mountains” and “clouds”, the notion of “space” to explore the development of painting. Trace back to the change of space concepts of eastern and western fine arts, trying to mix and displaying them in the creation of paintings. Mainly use the traditional Chinese universal view and philosophy to express the Chinese painting’s space notion. This national characteristic of space notion displayed in the way of the unique Chinese landscape painting. To urge the spiritual image by adopting the mental power, and expand the space notion incessantly, which had laid a solid foundation and had a style of its own. Chinese landscape paintings space awareness of “infinite universe, abundant resource” makes a totally different from that of the western painting. Applying “mountains & forests” “clouds”, “city”, “dark nights” and ‘light” as ingredients to describe self-reflection, create an atmosphere of endless darkness, a kind of forceful panic which force us to judge between truth and vanity .By means of silent self-reflection , to reach the purpose of purifying mind. An attempt of interchangeably applying :‘emptiness’; existence, “ ground” and “figure”, arranging position, influencing the whole atmosphere of the painting, using crayon instead of ink, producing blue and green impression, displaying endless, immense, infinite world.

Examining Board: Professor Antonella Romano, EUI (Supervisor); Professor Bartolomé Yun Casalilla, EUI; Professor Maria Antonietta Visceglia, Università di Roma La Sapienza; Professor Mario Biagioli, UC Davis School of Law.
Defence date: 27 October 2012
PDF of thesis uploaded from the Library digital archive of EUI PhD theses
This PhD thesis analyses the ways in which technological and scientific knowledge was acquired, circulated and employed in Renaissance Europe, and how technological innovation was practiced at the dawn of the Scientific Revolution. Janello Torriani (b. Cremona ca.1500 – d. Toledo 1585) was a craftsman from a minor centre of Northern Italy. In his late forties he was employed in the capital of the duchy of Milan at the service of the imperial governor. This was the first prestigious stage of a career that later took him to the imperial court of Charles V and later that of the Spanish ruler Philip II: a very late but remarkable professional blooming. Torriani created a number of technological devices that were hailed by contemporaries as mechanical marvels, such as the Microcosm, the most complex and compact planetary clock ever built, and the first gigantic machine: the Toledo Device (a 300 meter complex structure that could elevate water for a good 100 meters)1. Moreover, Torriani participated in the Gregorian reform of the calendar, contributing a tract and mathematical instruments for calculus. Further mathematical and mechanical endeavours included a waterworks-survey, celestial observations, automata and other curious clockworks. Historiography so far has mainly investigated Torriani as part of a narrative of Renaissance genius. The category of genius has been extremely popular in accounts dealing with the problematic and multi-faceted notion of Renaissance. Yet, it has little to offer when it comes to research that seeks to construct the social and cultural contexts in which careers as rich in innovation and craftsmanship as Torriani’s was, were moulded. This thesis aims to observe an existing topic - Janello Torriani’s career - through a new perspective. My PhD is thus intended as an essay in the social and cultural history of knowledge, and especially in its declination of technological innovation.