The Cable Television Channel Planning and Management Regulations, which was promulgated on December 13 in 2004, indicate clearly that each cable station¡¦s third channel is ¡§the public channel¡¨ to practice community people¡¦s ¡§media access rights¡¨. Its major purposes are to protect the freedom of speech, to ensure citizens having channels to express their opinions, and to facilitate the diverse social developments. Theoretically, public access channel should be viewed as the public sphere. Practically, due to the characteristics of local cable television, it is expected to preserve local culture, to educate the local people the functions of regional media, and to contribute to community development. Especially in today Taiwan¡¦s media environment, most media are controlled by the political and business forces and vested interest organizations, the local voice could not be heard in the mainstream media. This survey chose the public accessible channel 3 of the local cable stations in Tainan County (thereinafter referred as Tainan County Third Public Television Service) as study objects. There were three purposes of this study¡Xfirst of all, to understand the current situation of public access channels operated by local cable television stations and how public access channels apply to public affairs; second, to propose the appropriate operational modes for cable television stations by evaluating the difficulties and problems of practicing public affairs; and third, to discuss how public policy could be extend and constructed to create community interaction and hence a citizen society by exploring the interaction between local government and media and analyzing the best operational mode of public access channel. The results of this study indicated that due to the mutual interest structure of politics and businesses, the local government does not fulfill the role of administrator. The responsibility of media to promote civic society was abandoned or fulfilled just merely nominal by the local cable television owners. The channel for public participation is turned back to the communities. Based on the findings of this study, there are two suggestions for policy revision: first, amending the Cable Radio and Television Law and enacting the clauses of rewards and punishments for channel management to ensure the participation of public affairs; second, the public access channels of cable television stations should serve as a platform for video production for the public. This study mainly explored the possibility of using the public access channels of cable television to practice public affairs. Due to the scopes and limits of research design, the case examined was limited to the case of Tainan County. Advance studies could be focused on the performance of the provision of programs (i.e. programs in social community education, etc.) to contribute to the public sphere and civic society.

Abstract At present, the pervasion of cable television (CATV) is over 85% in Taiwan, so that the digitalization of CATV has brought an important influence to the Taiwan television industry. The purposes of this study are to explore the key factors of influencing digital cable television (CDTV) user¡¦s adoptive behavior by technology acceptance model (TAM). An extended TAM incorporating the notion of compatibility, trialability, observability, habits and network externality. Collecting data form one CDTV operators by convenience sampling. This study found that compatibility, trialability, observability, habites are directly positive to the perceived usefulness and perceived ease of use, whereas, the network externality was negative to perceived usefulness and perceived ease of use. In addition, network externality, perceived usefulness and perceived ease of use were directly positive to the behavioral intention to use. This study suggest that CATV operators could especially regard for providing ample and quality digital content and beta test of CDTV and making the CDTV simple to manipulate, while promote CDTV.

Abstract The object of this study is to investigate the flow induced vibration of cable structures. Two various methods, Eigenvalue method and Cable dynamics method, are used to evaluate, the natural frequencies of structures. Vortex shedding frequencies are introduced in order to compare with the natural frequencies mentioned above. The results determine whether the phenomenon of resonance or Lock-in occur. This study has four parts. The first part is the dynamic analysis of an underwater cable Depending on the various boundary conditions, the study discusses, the system of towing cable and mooring cable in which the maximum horizontal displacement and the maximum dynamic response amplitude are found in different ocean environment. The second part is a linear Eigenvalue analysis for natural frequencies of cable structures. The third part compare the results based on the two methods , Cable dynamics and Eigenvalue method. The former obtain tension results that are important to determine the natural frequencies of structures by theoretical formula. The results of natural frequencies from the letter are compared to those in the former. The fourth part is mainly to calculate vortex shedding frequencies resulting in the relative motion between structures and fluid. The final results found in the fourth part are necessary to compare with part three, so as to determine whether the resonance or Lock-in occur.

Abstract Since the policy of National Information Infrastructure(NII) was brought up by U.S in 1993, medium, internet, telecommunication begins to converge. Industries around the world start to construct new services. The result all comes from the technology progress of broadband network. Cable companies only offer program services before, today they can play an important role in NII blueprint by their competence of last mile and large customer base. Cable companies can offer a lot of valued added service, especially as ITV service. From 90 years the discussion about how ITV will change the human life has never stopped. People living in Europe and U.S have had a chance watch ITV, but ITV in Taiwan seems still can¡¦t be possible. This research explore the straits by using Porter¡¦s competitive advantage of nations model and combines the first mover advantage theory by Wernerfelt, Birger and Karnani, Aneel. Lastly the research constructs a six frames analysis model. Major result of this research tells us each frame has many limiting factors to obstruct the development of cable ITV. And the limiting factors under the government, corporate, supported industry fames are more critical. The intervention by government is the most important limiting factor. Lack of demand, lack of technology, incorrect strategy and incorrect management are not the reason that ITV didn¡¦t happen in Taiwan. The research makes the conclusion that the straits in Taiwan are coming from the vicious circle caused by the government intervention and the bad situation in the cable industry. The research considers if we want the ITV carry out in Taiwan, We must stop the vicious circle. The government policy is the key point to solve the problem. So finally the research provides the four steps policy trying to change the situation of cable industry.

published_or_final_version / Transport Policy and Planning / Master / Master of Arts in Transport Policy and Planning

Long-span cable-stayed bridges have gained increasing popularity due to their appealing aesthetics, increased stiffness compared to the suspension bridges, and relatively small size of bridge components. For cable-stayed bridges with steel girders in particular, fatigue has been one of the most important failure modes and the prediction of the remaining fatigue lives has been the primary focus in recent years. To enable the evaluation of fatigue performance, a reasonable baseline finite element model reflecting the real structural behaviour is indispensable. This thesis describes the establishment of baseline finite element models of cable-stayed bridges for fatigue analysis considering the mean stress effect. Ting Kau Bridge in Hong Kong is chosen as a real life example to demonstrate the practical application of the methods developed. Firstly, the initial cable forces of the finite element model of the cable-stayed bridge are calibrated to ensure that the initial geometry of the finite element model under permanent loading agrees with that specified on the as-built drawings within reasonable tolerance. The traditional cable force adjustment method is often a trial-and-error process which is empirical, time-consuming and occasionally difficult in convergence. An optimization method based on the Kriging surrogate model is therefore developed in order to establish the relation between the deck geometry and he initial cable forces of the cable-stayed bridge. The efficiency of the proposed approach is further verified using Ting Kau Bridge against the traditional method. Furthermore, the initial finite element model developed on the basis of engineering blueprints is updated by modifying the uncertain parameters so as to achieve a refined model using the Kriging predictor. An objective function can be formulated in terms of the discrepancy between the theoretical and measured responses captured by the Wind and Structural Health Monitoring System (WASHMS) installed on the bridge. A novel feature of the proposed method is that it enables the simultaneous use of static load testing data and the dynamic information, which is not feasible by using the conventional sensitivity-based approaches. Finally, the fatigue lives of selected critical components of Ting Kau Bridge are worked out with different methods including the deterministic and probabilistic approaches based on the baseline finite element model. In the deterministic approach, the equivalent annual standard fatigue vehicle spectrum is built based on the WASHMS measurements to estimate the damage accumulation and predict fatigue lives. In the probabilistic approach, a probabilistic loading model is proposed to simulate the vehicles running along the bridge by using the available information collected by the weigh-in-motion system. Combined with the traffic load model, a statistical approach is employed to obtain the stress time-histories, and the probability density curve of the fatigue life can be obtained. One significant advantage of the proposed method is that the diurnal variation of traffic flow within different time intervals can be accounted for properly. The results of these approaches are compared with one another. As the mean stress effect is significant in the estimation of fatigue lives, the baseline calibration of cable-stayed bridges is considered essential. / published_or_final_version / Civil Engineering / Doctoral / Doctor of Philosophy

This work is about creation of system which allows for cable TV to manage and monitor their internet subscribers and equipment (modems, servers, routers) over database. Created system allows add remove and manage subscribers over internet browser interface. Operator can monitor each subscribers downloaded and uploaded data amount. This system automatically updates routers and servers configurations as subscriber is being added removed or edited. This system also monitors servers and routers state: traffic, packets transmitted, CPU use, system load, RAM use and disk use. Main router periodically updates database with information about each subscribers downloaded and uploaded data amount, and if subscriber has reached its data limit database server responds to this information by sending new configuration to main router for this subscriber. This system allowed company install cheaper services with restricted data amounts for subscribers and subscribers number increased about twice over a year.

Electronically monitoring whether or not your car block heater is connected to a mains outlet might at first seem like an arbitrary task. A device installed in the comfort of the car seating area, which tells the user at every startup whether or not his/her car is connected to a mains outlet, could have market appeal though. But in order for it to be a worthwhile idea to pursuit, a certain requirement has to be met. It has to be able to be able to accurately detect whether or not the car is connected, through a single connection; the car ground. A certain part of the voltage in the phase of the mains will be capacitively coupled upon the safety ground. By exploiting the fact that the car ground will be connected to the mains safety ground when the block heater cable is in use, a device which can detect that coupled voltage could possibly be developed. In other words, a cable monitoring unit which in actuality detects a connection to the mains safety ground through capacitive coupling, hence the title of this dissertation. This work sets out to taking appropriate measurements to find out whether or not this proposed method of safety ground detection is valid, with heavy emphasis on whether or not it is applicable to a cable monitoring unit. According to the measurement results, an appropriate device is developed. A device which can fill the function described in the previous paragraph. Development of such a device involves; proper method of supplying power which upholds a galvanically isolated floating ground, signal processing, reliable detection mechanism, and considerations to how unintentional capacitive coupling behaves. A theoretical model of the device is put forth, as well as an actual rough prototype to in practice try to prove that the concept and method is valid. Downsides and problems with the device are discussed, such as upholding an effective detection system without making the device hard and cumbersome to use. Possible solutions to these problems are also proposed. The possible future of the concept of this device is also touched upon.

Thesis (M.S.)--University of Toledo, 2007. / Typescript. "Submitted as partial fulfillment of the requirements for the Master of Science in Civil Engineering." "A thesis entitled"--at head of title. Bibliography: leaves 86-87.

Thesis (M.S.)--Kutztown University of Pennsylvania, 1991. / Source: Masters Abstracts International, Volume: 45-06, page: 2724. Abstract precedes thesis as 3 preliminary leaves. Typescript. Includes bibliographical references (leaf 48).