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    The history of control: from idea to technology

    Bernstein, D.S. ; Bushnell, L.G.
    Control Systems, IEEE

    Volume: 22 , Issue: 2
    DOI: 10.1109/MCS.2002.993310
    Publication Year: 2002 , Page(s): 21 - 23
    Cited by:  Papers (1)

    IEEE Journals & Magazines

    First Page of the Article
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    A study of multimedia & its impact on students' attitude

    Srivastava, S.
    Technology Enhanced Education (ICTEE), 2012 IEEE International Conference on

    DOI: 10.1109/ICTEE.2012.6208606
    Publication Year: 2012 , Page(s): 1 - 5
    Cited by:  Papers (1)

    IEEE Conference Publications

    In present scenario we are facing a time of information evolution, in the ever changing world our teachers and students requires the right information from the right sources today. The present world is changing rapidly and the field of education is experiencing these changes in particular as it applies to Media Services. The old days of an educational institution having an isolated audio-visual department are long gone! The growth in use of multimedia within the education sector has accelerated in recent years, and looks set for continued expansion in the future. Teachers primarily require access to learning resources, which can support concept development by learners in a variety of ways to meet individual learning needs. The development of multimedia technologies for learning offers new ways in which learning can take place in schools and the home. Enabling teachers to have access to multimedia learning resources, which support constructive concept development, allows the teacher to focus more on being a facilitator of learning while working with individual students. Extending the use of multimedia learning resources to the home represents an educational opportunity with the potential to improve student learning. The elements used in multimedia have all existed before. Multimedia simply combines these elements into a powerful new tool, especially in the hands of teachers and students. Interactive multimedia weaves five basic types of media into the learning environment: text, video, sound, graphics and animation. Since the mode of learning is interactive and not linear, a student or teacher can choose what to investigate next. For example, one does not start on the first page of a linear document and read to the end. Interactive multimedia learning mode is more like constructing a spider's web, with one idea linked to another, allowing choices in the learner's path. The multimedia technologies that have had the greatest impact in education are those that augmen- the existing curriculum, allowing both immediate enhancement and encouraging further curriculum development. For example, the WWW serves as a storehouse of information that individual learners can search for subject matter content that specifically fits their learning agendas. In the context of the present study, the concept of smart classrooms does not completely do away with the traditional method of teaching. Rather it seeks to club the use of technology with conventional methods of teaching. The resultant product is a harmonious blend of the modern and the traditional. For instance, the teacher while teaching a lesson on volcanoes will supplement the information given in books by showing a video of how a volcano erupts. Educomp smart class is one of the applications of the ICT. Educomp smart class is transforming the way teachers teach and students learn. Educomp smart class is a digital initiative pioneered and invented by Educomp. Smart class provides a very systematic way of learning through curriculum and well equipped computer classes. Educomp smart class also provides a large repository of 3D animated modules and videos mapped to school curriculum. Frame by frame, with engaging and instructionally sound animated set of visuals while retaining complete control on the pace of delivery. The curriculum reach unfolds from kindergarten to grade twelve covering subjects like Mathematics, Science, English, EVS, Social Studies, Physics, Chemistry, Biology, History, Geography, Economics and Business Studies. The Educomp Smart Class programme has an overall positive impact on students more in terms of generating curiosity and grasping complex concepts rather than capturing attention, while it helps teachers in managing time. View full abstract»

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    Index

    Dalzell, F. ; Carlson, W. ; Sprague, J.
    Engineering Invention:Frank J. Sprague and the U.S. Electrical Industry

    Page(s): 263 - 288
    Copyright Year: 2010

    MIT Press eBook Chapters

    Over the course of a little less than twenty years, inventor Frank J. Sprague (1857-1934) achieved an astonishing series of technological breakthroughs--from pioneering work in self-governing motors to developing the first full-scale operational electric railway system--all while commercializing his inventions and promoting them (and himself as their inventor) to financial backers and the public. In Engineering Invention, Frederick Dalzell tells Sprague's story, setting it against the backdrop of one of the most dynamic periods in the history of technology. In a burst of innovation during these years, Sprague and his contemporaries--Thomas Edison, Nicolas Tesla, Elmer Sperry, George Westinghouse, and others--transformed the technologies of electricity and reshaped modern life. After working briefly for Edison, Sprague started the Sprague Electric Railway and Motor Company; designed and built an electric railroad system for Richmond, Virginia; sold his company to Edison and went into the field of electric elevators; almost accidentally discovered a multiple-control system that could equip electric train systems for mass transit; started a third company to commercialize this; then sold this company to Edison and retired (temporarily). Throughout his career, Dalzell tells us, Sprague framed technology as invention, cast himself as hero, and staged his technologies as dramas. He toiled against the odds, scraped together resources to found companies, bet those companies on technical feats--and pulled it off, multiple times. The idea of the "heroic inventor" is not, of course, the only way to frame the history of technology. Nevertheless, as Dalzell shows, Sprague, Edison, and others crafted the role consciously and actively, using it to generate vital impetus behind the process of innovation. View full abstract»

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    Afterword: The Barn

    Dalzell, F. ; Carlson, W. ; Sprague, J.
    Engineering Invention:Frank J. Sprague and the U.S. Electrical Industry

    Page(s): 233 - 236
    Copyright Year: 2010

    MIT Press eBook Chapters

    Over the course of a little less than twenty years, inventor Frank J. Sprague (1857-1934) achieved an astonishing series of technological breakthroughs--from pioneering work in self-governing motors to developing the first full-scale operational electric railway system--all while commercializing his inventions and promoting them (and himself as their inventor) to financial backers and the public. In Engineering Invention, Frederick Dalzell tells Sprague's story, setting it against the backdrop of one of the most dynamic periods in the history of technology. In a burst of innovation during these years, Sprague and his contemporaries--Thomas Edison, Nicolas Tesla, Elmer Sperry, George Westinghouse, and others--transformed the technologies of electricity and reshaped modern life. After working briefly for Edison, Sprague started the Sprague Electric Railway and Motor Company; designed and built an electric railroad system for Richmond, Virginia; sold his company to Edison and went into the field of electric elevators; almost accidentally discovered a multiple-control system that could equip electric train systems for mass transit; started a third company to commercialize this; then sold this company to Edison and retired (temporarily). Throughout his career, Dalzell tells us, Sprague framed technology as invention, cast himself as hero, and staged his technologies as dramas. He toiled against the odds, scraped together resources to found companies, bet those companies on technical feats--and pulled it off, multiple times. The idea of the "heroic inventor" is not, of course, the only way to frame the history of technology. Nevertheless, as Dalzell shows, Sprague, Edison, and others crafted the role consciously and actively, using it to generate vital impetus behind the process of innovation. View full abstract»

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    Innovative Application of RFID Systems to Special Education Schools

    Shu-Hui Yang ; Pao-Ann Hsiung
    Networking, Architecture and Storage (NAS), 2010 IEEE Fifth International Conference on

    DOI: 10.1109/NAS.2010.33
    Publication Year: 2010 , Page(s): 299 - 304

    IEEE Conference Publications

    Innovation is a new way of doing something. It may be incremental, radical, or revolutionary changes in thinking, products, processes, or organizations. Different from invention, which is an idea made manifest, innovation is ideas applied successfully. In this work, we strive to apply innovative Radio Frequency Identification (RFID) systems to special education school campus because in this modern age of science and technology, there still exists a wide digital gap in special education schools such that they have not yet benefited from technology advancements such as RFID. Supported by the ministry of education in Taiwan, we successfully designed and deployed RFID technology to the campus of a special education school at Chiayi in Taiwan. Though the technology was applied to eight different use case scenarios, we will focus on five of the more innovative ones in this work, including student temperature monitoring (STM), body weight monitoring (BWM), garbage disposal monitoring (GDM), mopping course recording (MCR), and campus visitor monitoring (CVM). Both active and passive tags and readers were employed to implement these five systems within the same campus. The benefits obtained from these systems by the students, teachers, and administrators were three-folds. First, student health monitoring through STM and BWM systems allowed the teachers and administration real-time control over changing health conditions that significantly affects such students. Second, course monitoring and recording through GDM and MCR allowed teachers to easily grasp and tune the learning curve of each student and also to implement a more guided training based on past learning efforts. Last but not least, campus safety monitoring through CVM allowed the administration to monitor the location of visitors in the campus and thus safeguard the students and teachers from dangerous or troublesome visitors. Novel techniques and creative methods were employed in the five systems, including tempera- - ture correction algorithm in STM, BMI-based weight tuning strategy in BWM, multiple route-tracking in GDM, learning improvement through history analysis in MCR, and face detection in CVM. The project was successfully deployed and is currently in use by the Chiayi School of Special Education which has more than 300 students and 150 administration staff and faculty. View full abstract»

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    “Bottom, thou art translated”: the making of VRML Dream

    Matsuba, S.N. ; Roehl, B.
    Computer Graphics and Applications, IEEE

    Volume: 19 , Issue: 2
    DOI: 10.1109/38.749122
    Publication Year: 1999 , Page(s): 45 - 51
    Cited by:  Papers (6)

    IEEE Journals & Magazines

    Bringing virtual theater to the Web requires 3D graphics, efficient networking, and strong content. We discuss the VRML Dream Project, a real time Internet performance. In the late summer of 1997, the authors sat in a pub in Toronto, Canada, and began planning an ambitious project: to create a new entertainment medium. The idea was to mount a live performance of Shakespeare's A Midsummer Night's Dream and “broadcast” it over the Internet. The sets, props, and all the characters were to be modeled using the Virtual Reality Modeling Language (VRML) 2.0. A group of actors would provide the voices, and puppeteers would control the characters. Both the voices and the motion data would be digitized, compressed, and sent out over the Internet in real time. Moreover, people would be able to access this broadcast with a 28.8-Kbps modem connection and a 150-MHz Pentium computer. Less than six months later, VRML Dream made Internet history (D. Coco, 1998). VRML Dream was the first live, streaming, VRML entertainment project with a running time of more than two or three minutes, and it proved that streaming both motion and voice data over standard Internet connections was possible. The article looks at the development of the project, its models and technology, and the main issues that influenced the final design. It also examines the technology needed to create live, streaming, real time 3D animation for the Internet as well as some of the challenges that lie ahead View full abstract»

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    Sentience System Computer: principles and practices

    Mitsuyoshi, S. ; Ren, F.
    Systems, Man and Cybernetics, 2002 IEEE International Conference on

    Volume: 4
    DOI: 10.1109/ICSMC.2002.1173347
    Publication Year: 2002

    IEEE Conference Publications

    Research on artificial intelligence and sensitivity control technology has progressed in recent years, and the technology of imitating human thinking, feeling, and sensitivity have been established. However, research on Sentience as the way of idea generation and intuition that are the origin of human being's intellectual production activity seems to have just started. Moreover, although the field of quantum computing is also being researched briskly, no practical results have been produced yet. In this paper, a new machine called Sentience System Computer (SSC) is presented. SSC is an intuition computer system having self-intention. According to the interpretation in the many-worlds quantum theory, the spontaneous intuition of the human can be defined as what is produced by interference from the self multiple worlds which are resulted from all piles of self-history. We present the principles and practices of SSC, the basic spontaneity type algorithm. When applying SSC to the sensitivity control technique, the process of generating sentience, the procedure of human conception, the state of the idea database and some recent results of SSC, are given also. View full abstract»

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    Feedback control: an invisible thread in the history of technology

    Bernstein, D.S.
    Control Systems, IEEE

    Volume: 22 , Issue: 2
    DOI: 10.1109/37.993315
    Publication Year: 2002 , Page(s): 53 - 68
    Cited by:  Papers (5)

    IEEE Journals & Magazines

    The history of technology combines engineering with economic, social, and political factors. Technology seems to advance in waves. Small advances accumulate slowly until a critical level of technological success and economic advantage is achieved. Throughout technological history is found the idea of feedback control. Like all ideas, feedback control impacts technology only when it is embodied therein; it is not tied to any specific innovation or invention. The article describes innovations that either use feedback control or allow it to be exploited. They are simple but their impact on technology is profound. It is shown that they played a crucial role in facilitating the truly great waves of technological and scientific development. They are the escapement (a significant part of the paper is about mechanical clocks), the governor, the aileron, the gyro, and the amplifier View full abstract»

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    Towards an implementation of a short messaging system over an e-learning environment

    Cespedes, J.S. ; Rivas, M.C.
    Information Systems and Technologies (CISTI), 2012 7th Iberian Conference on

    Publication Year: 2012 , Page(s): 1 - 6

    IEEE Conference Publications

    TEC Digital is the e-learning platform used in Tecnológico de Costa Rica (TEC). This learning environment has a notification service via e-mail as main means of communication between teachers and students, but it does not guarantee that students receive and read their email on time. Faced with a need of more flexible communication channels on learning communities, we sought an alternative method to facilitate communications between teachers and students, hence the idea of implementing a SMS's module (Short Message Service module) due to the prevalence of this technology on students population. This paper focuses on design and preliminary considerations to implement a messaging service according to a virtual communities model. LRN was used as a learning platform for design and implementation tests, and we addressed advantages and disadvantages of using contracted services as opposite to local implementations. In addition, we present some considerations about proprietary hardware and software, data security and some of main problems were encountered during the implementation process. The main advantage of a gateway implementation on personal server is a return on long-term of investment for messages sent and the total control over data transferred. Furthermore, implementation can execute commands on the server from the SMS content received and build an extension to manage message history. View full abstract»

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    Sustainable power production and purification of water

    Tiwari, J. ; Singh, A.K. ; Yadav, A. ; Jha, R.K.
    Advances in Computing, Communications and Informatics (ICACCI, 2014 International Conference on

    DOI: 10.1109/ICACCI.2014.6968458
    Publication Year: 2014 , Page(s): 2258 - 2263

    IEEE Conference Publications

    Throughout the human history, a series of technologies introduced for water treatment and power optimization can be traced. The growing population demands electricity, this is increasing pressure on our non-renewable resources which are depleting fast. Therefore, salinity gradient energy is a promising renewable energy source for the future. The increasing scarcity of drinking water has also wretched human life quality. The paper proposes the use of graphene membrane for power generation using reverse osmosis process. At the same time water is desalinized and processed for purification so that there is availability of ultra-pure clean water without using filters in there households and abundant electricity without any ecological imbalance. The proposal includes removal of arsenic, poorly biodegradable pollutants using TiO2 nanoparticles. Electrolysis is used to obtain chlorine. Advance electronics implementation also renders this with pump control, fouling detection modules and decision module for the volume of effluent to be discharged. The idea focuses on increasing water supplies through the safe re-use of wastewater and efficient desalination of sea water and to fulfil large demand of electricity in the world renewably. View full abstract»

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    Controlling systems via set-theoretic methods: some perspectives

    Blanchini, F.
    Decision and Control, 2006 45th IEEE Conference on

    DOI: 10.1109/CDC.2006.377415
    Publication Year: 2006 , Page(s): 4550 - 4555
    Cited by:  Papers (1)

    IEEE Conference Publications

    Set-theoretic methods for analysis and design of control systems have a long history since the first contributions trace back the early 70s. The theory was almost abandoned once it became clear that, although the techniques are appropriate to solve many theoretical and practical problems, the complexity of the required algorithms was not compatible with the computer technology of the time. In recent years, the theory is receiving a renewed interest due the current computer performances which are suitable to face non-trivial problems. In this tutorial, after a due tribute to the pioneering past work, we consider the area in a new perspective. We investigate several problems that can (at least potentially) have a benefit from these techniques. The paper sketches some ideas that, although already presented in the literature, have still to be fully developed. Concepts are not presented in a formal way but explained by means of simple illustrative examples View full abstract»

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    Not what the computer can do, but what the learner must do

    Turner, D.A.
    Interactive Collaborative Learning (ICL), 2011 14th International Conference on

    DOI: 10.1109/ICL.2011.6059610
    Publication Year: 2011 , Page(s): 382 - 385

    IEEE Conference Publications

    This paper examines the history of curriculum reforms designed to improve teacher efficiency and control the learning process. The process of continual reinvention of methods that are designed to support a transmission model of teaching and learning have failed. They also form a backdrop against which more recent moves to support learning with technology can be understood and evaluated. The results are not positive, but rather suggest that the way that children and adults learn cannot be supported by tools that are based on the idea that learning is the transmission of knowledge. An alternative understanding, of learning as a creative act is offered as an alternative. View full abstract»

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    Creating educational Web sites

    Azuma, J.
    Communications Magazine, IEEE

    Volume: 37 , Issue: 3
    DOI: 10.1109/35.751506
    Publication Year: 1999 , Page(s): 109 - 113
    Cited by:  Papers (1)  |  Patents (13)

    IEEE Journals & Magazines

    This article deals with the issue of educators creating their own educational Web sites equipped with original Web-based teaching materials developed by themselves. As an illustrative example, teaching of English as a foreign language in Japan is taken. Several concrete ideas in building up educational Web sites are illustrated, including an example of Web-based rapid reading exercise pages, an example of Web pages implementing instant feedback to students' quiz responses, and semi-automatic creation of students' study history files using standard commercially available software. Introduction of the next-generation Web server, developed at Graz University of Technology, for effective document management and organized access rights control is also discussed View full abstract»

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    History-based constraints for dynamic separation-of-duty policies in usage control

    Jianfeng Lu ; Dewu Xu
    Computer Science and Network Technology (ICCSNT), 2011 International Conference on

    Volume: 4
    DOI: 10.1109/ICCSNT.2011.6182463
    Publication Year: 2011 , Page(s): 2438 - 2442

    IEEE Conference Publications

    Separation of Duty (SoD) is a widely used security principle to help prevent frauds in a business process. Recently presented usage control (VeON) has been considered as the next generation access control model. However, as a related and fundamental problem, the research of SoD policy in VeON has not been explored. In this paper, we give a formal definition of dynamic SoD (DSoD) policies, and show that checking whether a VeONA state satisfies a given DSoD policy is a coNP-complete problem, only two special cases can be checked in polynomial time. We propose the history-based constraints for enforcing DSoD policies in usage control. The key idea is to record each permission access request, and use these histories to make the decision when a new permission request is generated. This approach poses and answers fundamental questions related to enable the use of constraints to support SoD policies in VeON. View full abstract»

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    Built-in-test in support system maintenance

    Drees, R. ; Young, N.
    Instrumentation & Measurement Magazine, IEEE

    Volume: 5 , Issue: 3
    DOI: 10.1109/MIM.2002.1028369
    Publication Year: 2002 , Page(s): 25 - 29
    Cited by:  Papers (3)

    IEEE Journals & Magazines

    This article looks at the state of BIT (built-in-test) in test and measurement instruments, explains BIT's effect on system readiness, and presents ideas on how to improve BIT technologies and standards. The following topics are discussed: circuit level BIT (built-in self-test); module level and line replaceable units (LRU); system-level self-contained testing; instrumentation BIT history; BIT fault coverage and isolation in support system maintenance; BIT development process; pitfalls and limitations of BIT; BIT effectiveness in support system maintenance and availability. View full abstract»

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    “Alternative” transportation systems: telematics solutions? A historical overview and present/future solutions for dependable and competitive environments

    Schoitsch, E.
    Euromicro Conference, 2000. Proceedings of the 26th

    Volume: 2
    DOI: 10.1109/EURMIC.2000.874420
    Publication Year: 2000 , Page(s): 208 - 214 vol.2

    IEEE Conference Publications

    Transportation of people as well as goods and information, has always been a basic need for mankind, for individuals, as well as for economics. Those who better managed transportation had a clear advantage over others, and early civilisations were based on this principle. Transportation is always associated with hazards and implied risks, although public risk perception is different depending on the type of transportation (relatively high risk is accepted for individual car traffic or human activities, but not for other means of transportation and technical equipment). There are three ways to reduce risk associated with transportation (including environmental risks): reduction by technical means (dependable systems); optimisation by logistics and/or use of more “sustainable ” technologies; avoid physical transportation (telematics “alternatives”). A few ideas and solutions are presented View full abstract»

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    CDS project - what is inside

    Hoad, R.
    Information and Communication Technologies: From Theory to Applications, 2004. Proceedings. 2004 International Conference on

    DOI: 10.1109/ICTTA.2004.1307661
    Publication Year: 2004

    IEEE Conference Publications

    CDS stands for Community Directory Service. The generalized idea of the CDS means that a community of people/experts on the Internet accumulate and screen information and links found on the Internet and place into a dynamically growing directory (topics with subtopics or subject tree) overseen, structured and controlled by editors who have taken the responsibility to look after the content and structure. Everything is done decentrally through the Internet but on a central server (server group). At the beginning of 2000 the CDS project set out to develop a community of practice Web site for fisheries researchers, so known later as "OneFish". The software was rapidly taken up by a number of other FAO customers mainly interested in building thematic hierarchical portals, metadata catalogues and collaborative work group sites. These customers included WCA-Infonet, a global platform for decisions on water conservation and use in agriculture. As a consequence of the expansion the software requirements evolved rapidly and in unexpected ways. This presentation outlines the history of the project, how the problem of evolving requirements was tackled, how the requirements shaped the software architecture and the software development method employed. View full abstract»

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    Plant automation at Signal Mountain Cement

    Maranzana, M.
    Cement Industry Technical Confernece, 2002. IEEE-IAS/PCA 44th

    DOI: 10.1109/.2002.1006515
    Publication Year: 2002 , Page(s): 289 - 306

    IEEE Conference Publications

    The advent of new technologies that has taken place in recent years in the control and information systems in modern cement plants has allowed drastic improvements in the efficiency and reliability of the equipment and in the quality of the product. Information and data are much more readily available to many more people in different locations and in real time, improving and expediting the decision-making processes. This paper outlines the main characteristics and principles of the control system of the new Signal Mountain Cement plant, hoping to give those involved with control and information systems some hints and ideas to apply to their projects View full abstract»

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    Engineering design for 600 freshmen- A scale-up success

    Regan, T.M. ; Minderman, P.A., Jr.
    Frontiers in Education Conference, 1993. Twenty-Third Annual Conference. 'Engineering Education: Renewing America's Technology', Proceedings.

    DOI: 10.1109/FIE.1993.405568
    Publication Year: 1993 , Page(s): 56 - 60
    Cited by:  Papers (5)

    IEEE Conference Publications

    The scale-up of a prototype engineering curriculum for 600 students at the University of Maryland is described. It is concluded that scale-up of the ENES 100 curriculum model for freshmen engineering design has been an overwhelming success, as judged by student reactions, faculty reactions, and professional evaluations. Essentially none of the curriculum pilot model ideas had to be discarded because of the large freshmen class. ENES 100 has become a campus model for total quality management. In addition, ENES 100 proved to be an excellent model for outreach programs View full abstract»

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    Hybrid Information Fashion Algorithm Based on Catastrophic Strategy

    Fu Xiaogang ; Yu JinShou
    Intelligent Information Technology Application, 2008. IITA '08. Second International Symposium on

    Volume: 3
    DOI: 10.1109/IITA.2008.576
    Publication Year: 2008 , Page(s): 890 - 894

    IEEE Conference Publications

    To address the premature convergence in the searching process of information fashion algorithm (IFA), a hybrid information fashion algorithm based on catastrophic strategy (CHIFA) is proposed in this paper. The new method applies the idea of a cusp catastrophic model and strategy which increases suddenly the threshold value probability and makes use of stochastic orderly logistic sequence to guide the mutation of agents for creation of powerful life individuals to jump out of the local optimum point. Experiments on optimization of unimodal and multimodal benchmark functions show that, CHIFA converges faster, results in better optima, is more robust, and prevents more effectively the premature convergence. The application of PID control parameters optimization also verifies that. View full abstract»

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    Otto Mayr: contributions to the history of feedback control

    Bennett, S.
    Control Systems, IEEE

    Volume: 22 , Issue: 2
    DOI: 10.1109/37.993312
    Publication Year: 2002 , Page(s): 29 - 33
    Cited by:  Papers (1)

    IEEE Journals & Magazines

    The publication, in 1969, of Dr. Otto Mayr's book, Zur Friffigeschichte der technischen Regelungen (The Origins of Feedback Control), revealed that both the concept and its application were much older. The reader rapidly becomes aware that the book is no simple catalog of inventions and inventors, but is a deep and subtle exploration of the history of ideas. A second theme that Mayr draws out of the narrative is the change in the relationship between science and technology that was occurring during the Victorian period View full abstract»

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    Inheritance and revival

    Zhao Jingxin ; Han Bo ; Guo Zhenfang ; Leng Jinhua
    Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

    DOI: 10.1109/MACE.2010.5536848
    Publication Year: 2010 , Page(s): 1102 - 1105

    IEEE Conference Publications

    Nowadays China are experiencing the progress of urbanization (urban population explosion, the increase of school-age children) which makes it necessary for the urgent reform in education facilities locate in downtown. This paper discusses the optimized design of planning and building reconstruction of primary and secondary school in downtown by analyzing the school status. We must inherit the history of old schoolyard should be inherited to keep harmonious landscape as well as apply the modern technology to complete the function and create sufficient space in order to inject new vitality into the traditional schoolyard. The feasibility and effect of optimal design ideas together with design practice are also analyzed in this paper. View full abstract»

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    Topological investigation of unsteady laminar juncture vortex system

    Younis, M.Y. ; Zhang, H. ; Mehmood, S. ; Aslam, J.
    Applied Sciences and Technology (IBCAST), 2014 11th International Bhurban Conference on

    DOI: 10.1109/IBCAST.2014.6778153
    Publication Year: 2014 , Page(s): 257 - 262

    IEEE Conference Publications

    Topology of the unsteady laminar juncture flows is studied numerically, to observe the existence of the traditional and new topology and the evolution mechanism. Both traditional topology with “saddle of separation” and new topology with “saddle of attachment” as most upstream singular point are observed. The creation of the new primary vortex in horseshoe vortex system in both cases is observed as a fold bifurcation process. This new vortex formation found not influencing the near wall topology adjacent to the most upstream singular point. The free end is found playing a vital role in topological evolution from the traditional type to new type. Controlling the free end effect (sweep) can control the topology, thus either of the two types of topology can be obtained by manipulating the free end effect. The study not only provides the existence of the new topology but also extends the idea of free end influences as a controlling parameter of the topological evolution in juncture flows. View full abstract»

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    Telpherage and problems of innovation

    Hempstead, C.A.
    Science, Measurement and Technology, IEE Proceedings A

    Volume: 140 , Issue: 3
    Publication Year: 1993 , Page(s): 197 - 205

    IET Journals & Magazines

    During the 1880s Fleeming Jenkin and his associates designed and constructed a new form of transportation entitled 'telpherage'. This was envisaged to be an analogue of telegraphs. Goods were to be sent in small trucks along single cables completely automatically. Initially the cables were to serve the dual purposes of load and current bearing. Jenkin hoped that this system of transport would enable electric power to be 'divided' as easily as electric light and would provide a cheap and flexible method of transporting goods. A line was constructed at Glynde in Sussex in 1885 where Jenkin's ideas were tested under operating conditions. He had recognised the need for adequate, safe control systems and introduced various techniques, such as mechanical brakes, electrical governors and positive blocking systems. His electrical governors were particularly ingenious. However, the system did not develop as he intended. The main purpose of the authors is to evaluate the constraints that forced modifications of his ideas. View full abstract»

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    Adaptive Bandwidth Allocation and Mobility Prediction in Mobile Cellular Networks

    Yami, E.S. ; Vakili, V.T.
    Next Generation Mobile Applications, Services and Technologies, 2009. NGMAST '09. Third International Conference on

    DOI: 10.1109/NGMAST.2009.13
    Publication Year: 2009 , Page(s): 343 - 348
    Cited by:  Papers (4)

    IEEE Conference Publications

    Since bandwidth is the most critical resource in mobile cellular networks, it is important to employ mechanisms for efficiently using the available bandwidth. Mobility of users and scarcity of bandwidth makes QoS provisioning a difficult task in cellular networks. In this paper, a call admission control (CAC) and resource reservation mechanism (RR) is described to provide a consistent QoS guarantee in cellular mobile networks and we propose an idea to improve it. This mechanism is based on user mobility profile which is effectively used for path prediction. The previous behavior of mobile users are collected and analyzed for generating mobility profiles. We add variable bandwidth allocation and bandwidth borrowing strategy to mobility prediction for improving the evaluation metrics. Our method guarantees that the bandwidth allocated to a real-time call never drops below the minimum bandwidth requirement of the call ensuring that the corresponding application can still function at an acceptable level. The simulation result shows that the performance of our method is superior that of existing scheme. View full abstract»

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