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MLEA： A Solution for Users of Android in UTPVirtual

Computer Technology and Application 2011年第5期2卷 406-412页

作者： Gisela Torres de Clunie Sergio Crespo Coelho da Silva Pinto Aris Linet Castillo Lucas Monteiro Braz Tasia Serrao Norman Rangel Jeanette Riley Olinda de Barraza Kexy Rodriguez Computer Systems Engineering Department Technological University of Panama Panama 0819 Panama Computer Science Research and Graduate Program in Applied Computing University of the Sinos Valley （UNISINOS） RS 93022-000 Brazil CIDITIC Technological University of Panama Panama 0819 Panama

This paper describes a design of an educational platform for a mobile learning architecture, which is a state of the an topic in distance education. The product will allow users to interact in an efficient, flexible, and transparent fashion with a web-based education environment, in this case Module Object-Oriented Dynamic Learning Environment （Moodle）, using Android mobile devices. In order to provide a strong and lasting architecture, the Service Oriented Architecture （SOA） methodology is used given that it allows easy software re-utilization as well as integration of heterogeneous services. The architecture is based on web services implemented with Representational State Transfer （REST）, as it has been demonstrated to be lighter and less consuming than other protocols, for devices with limited resources such as mobile devices. Web services provide the communication means between the server side and the client side of the architecture, whereas agents are used to deliver the services itself. The authors propose the development of an environment that facilitates the integration of various educational resources to support m-learning. An important aspect of the proposal is the offering of a tool to provide customized alerts for students and teachers, enabling them to remain updated about activities taking place in the courses.

关键词： Distance learning virtual education m-learning service oriented architecture （SOA） mobile learning mobile computing interoperability representational state transfer （REST）.

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Community-based research project in Wireless Communication to protect life and property from wildfire

Community-based research project in Wireless Communication t...

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118th ASEE Annual Conference and Exposition

作者： Amin, Mohammad N. Uhlig, Ronald P. Dey, Pradip Peter Sinha, Bhaskar Raj National University San Diego CA United States School of Business and Management National University San Diego CA United States Department of Computer Science and Information Systems School of Engineering and Technology National University San Diego CA United States

In 2007, some students in the Master of Science in Wireless Communication (MSWC) program at National University observed and experienced a devastating wildfire that occurred in Southern California. This article describes how these students learned and applied their knowledge to a critical need and expressed their willingness to serve the community. The article also briefly investigates the structural relationships among the program's mission, program requirements, learning outcomes, assessment measures, and qualitative elements of the program by demonstrating students' work on a capstone project entitled "Wildfire Detection and Monitoring System." In this capstone project, students integrated hardware and software to develop an engineering product prototype to meet a pressing need. The project formal report, presentation, and prototype demonstration were evaluated by a judging panel consisting of two faculty and two professionals from the wireless industry. After careful review, the panel concluded not only that the student project was satisfactory to validate student mastery of the MSWC program, but it recommended that real world implementation of the project should be seriously considered with appropriate local governments. © 2011 American Society for engineering Education.

关键词： Students

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Throughput Improvement of IEEE802.11DCF with Adaptive RTS/CTS Control on the Basis of Existence of Hidden Terminals

Throughput Improvement of IEEE802.11DCF with Adaptive RTS/CT...

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International Conference on Complex, Intelligent and Software Intensive systems, CISIS

作者： Tetsuya Shigeyasu Makoto Akimoto Hiroshi Matsuno Department of Management and Information Systems Prefectural University of Hiroshima Hiroshima Japan Graduate School of Information and Communications Technology Hiroshima International University Kure Hiroshima Japan Graduate School of Science and Engineering Yamaguchi University Yamaguchi Yamaguchi Japan

IEEE802.11 RTS/CTS handshake to avoid a packet collision with the transmissions from hidden terminals. Although RTS/CTS handshake effectively reduces packet collisions with hidden terminals, it also increases transmission overhead of IEEE802.11. In this paper, we discuss transmission overhead of IEEE802.11 induced by RTS/CTS handshake, and propose a new adaptive RTS/CTS control method on the basis of existence of hidden terminals, for mitigating transmission overhead ofIEEE802.11. Results from computer simulations confirm that our proposed method improve throughput performance in around the saturated traffic environment.

关键词： Throughput Receivers Sensors Computer simulation Multiaccess communication Data models Wireless LAN

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A portable screening system for onboard entry screening at international airports using a microwave radar, reflective photo sensor and thermography

A portable screening system for onboard entry screening at i...

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International Conference on Instrumentation, Communications, Information Technology, and Biomedical engineering (ICICI-BME)

作者： Guanghao Sun Shigeto Abe Osamu Takei Takemi Matsui Department of Management Systems Engineering Tokyo Metropolitan University Tokyo Japan Takasaka Clinic Fukushima Japan LIFETECH Company Limited Tokyo Japan

We developed a portable screening system designed for onboard entry screening at international airports. The system can identify passengers who are potentially infected with epidemic diseases such as severe acute respiratory syndrome (SARS) or pandemic influenza. With its size being small enough to be placed on airplane tray tables, the system enables entry screening while passengers are onboard. In addition, this automatic system may greatly reduce time and effort required for screening. This system is operated by a real time screening program via a linear discriminant analysis using derived variables, i.e., palmar pulse obtained by a reflective photo sensor, respiration rate determined by a 10-GHz microwave radar, and facial temperature measured by thermography. As reported in our previous study, the system has a higher accuracy in detecting influenza by using facial temperature, heart rate and respiration rate, compared to conventional fever screening. In order to assess the efficacy of this screening system, we tested on three influenza patients (38.4°C ≤ body temperature ≤39.2°C, 22-34 years) and 52 healthy volunteers (35.9°C ≤ body temperature ≤ 37.0°C, 20 29 years). The results showed that sensitivity and negative predictive value (NPV) are both 100%. In order to reduce negative false passenger, sensitivity and NPV are the most important parameters for entry screening at the boarders. The specificity and positive predictive value (PPV) were 88% and 33% respectively. This portable system can be applied to future onboard entry screening to safeguard public health at the boarders.

关键词： Temperature measurement Influenza Heart rate Microwave measurements Biomedical measurements Temperature sensors Radar

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Optimal Switching Frequency in Limited-Cycle with Multiple Periods

Optimal Switching Frequency in Limited-Cycle with Multiple P...

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The Twelfth Asia Pacific Industrial engineering ＆ management systems Conference(APIEMS 2011)

作者： Hisashi Yamamoto Masayuki Matsui Department of System Design Management Systems EngineeringTokyo Metropolitan University 6-6 AsahieaokaHino Tokyo191-0065Japan Department of Informatics Graduate School of Informatics and Engineering The University of Electro-Communications 1-5-1 ChofugaokaChofu-shiTokyo182-8585Japan

Due to the customer needs of reducing cost and delivery date shorting,prompt change in the production plan became more *** the multi period system(For instance,production line.) where target processing time exists,production,idle and delay risks occur repeatedly for multiple *** such situations,delay of one process may influence the delivery date of an entire *** this paper,we discuss the minimum expected risk of the case mentioned above,where the risk depends on the previous situation and occurs repeatedly for multiple *** paper considers the optimal switching frequency to minimize the total expected cost of the production *** this paper,first,the optimal switching frequency model is ***,the mathematic formulation of the total expectation is ***,the policy of optimal switching frequency is investigated by numerical experiments.

关键词： limited-cycle problem multi-period optimal switching frequency production seat system manufacturing line

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A Numerical Research for Two Special Workers' Optimal Assignment in Two Kinds of Workers under a Limited-Cycle Problem with Multiple Periods

A Numerical Research for Two Special Workers' Optimal Assign...

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The Twelfth Asia Pacific Industrial engineering ＆ management systems Conference(APIEMS 2011)

作者： Hisashi Yamamoto Masayuki Matsui Department of System Design Management Systems EngineeringTokyo Metropolitan University 6-6 AsahigaokaHino Tokyo191-0065Japan Department of Informatics Graduate School of Informatics and EngineeringThe University of Electro-Communications 1-5-1 ChofugaokaChofu-shi.Tokyo182-8585Japan

In this paper,we consider the property of the optimal assignment with minimized total expected risk in a limited-cycle problem with multiple *** most uncertain cases,the result and efficiency of a certain period (or a production cycle) are influenced not only by the risks which exist in current period but also by the risks which exist in the previous ***'s more,the risk itself is also affected greatly by the risks which exist in the earlier periods. This kind of problem is called a limited-cycle problem with multiple ***,the property of the optimal assignment is summarized when two workers with special processing rate ***,the property will be proved by a mathematical ***,the property of the optimal assignment will be also figured out when three special processing rate workers exist in two kinds of workers by numerical ***,the relevancy between the case that two special workers exist and the case that three special workers exist will be researched.

关键词： Limited-Cycle Scheduling Problem Multiple Periods Optimal Worker Assignment Processing Rate Risk

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Exploring provenance in high performance scientific computing

Exploring provenance in high performance scientific computin...

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1st Annual 2011 Workshop on High-Performance Computing Meets Databases, HPCDB'11, Co-located with Supercomputing, SC'11

作者： Gadelha Jr., Luiz M.R. Wilde, Michael Mattoso, Marta Foster, Ian Computer and Systems Engineering Program Federal University of Rio de Janeiro Brazil National Laboratory for Scientific Computing Brazil Mathematics and Computer Science Division Argonne National Laboratory United States Computation Institute Argonne National Laboratory University of Chicago United States Department of Computer Science University of Chicago United States

ISBN: (纸本)9781450311571

Large-scale scientific computations are often organized as a composition of many computational tasks linked through data flow. After the completion of a computational scientific experiment, a scientist has to analyze its outcome, for instance, by checking inputs and outputs of computational tasks that are part of the experiment. This analysis can be automated using provenance management systems that describe, for instance, the production and consumption relationships between data artifacts, such as files, and the computational tasks that compose the scientific application. In this article, we explore the relationship between high performance computing and provenance management systems, observing that storing provenance as structured data enriched with information about the runtime behavior of computational tasks in high performance computing environments can enable interesting and useful queries to correlate computational resource usage, scientific parameters, and data set derivation. We briefly describe how provenance of many-task scientific computations specified and coordinated by the Swift parallel scripting system is gathered and queried. © 2011 ACM.

关键词： Information management

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2-2 Ad hoc based emergency communications models for wide-scale disaster management

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Journal of the National Institute of Information and Communications Technology 2011年第1-2期58卷 95-105页

作者： Nguyen, Hoang Nam Gyoda, Koichi Okada, Kazunori Takizawa, Osamu Disaster Management and Mitigation Group Information Security Research Center Japan Department of Electrical Communications College of Engineering Shibaura Institute of Technology Japan Graduate School of Information Systems University of Electro-Communications Japan Disaster Management and Mitigation Group Japan Security Fundamentals Group Information Security Research Center Japan University of Engineering and Technology Vietnam National University Viet Nam Space Communication Systems Laboratory Wireless Network Research Institute Japan Technology Transfer Promotion Office Outcome Promotion Department Japan

In case of disasters, telecommunication infrastructure might be destroyed rising the demand of fast-deployment emergency wireless communication systems in order to provide communication services to victims and rescue teams. Recently, mobile ad hoc communications is considered as an efficient solution for emergency communications in disaster areas. Beside the advantages in terms of fast deployment and self-configuration capability, ad hoc communications networks show less performance in large scale networks. In this paper, we first discuss some proposed ad hoc based emergency communications models for wide scale disaster management. Then we present a hybrid system model of wireless data networks for emergency communications in disaster areas. Due to limited radio resource, resource management plays an important role to system performance and provide user's QoS. We propose a resource management scheme for the hybrid wireless networks in which selected powerful end users operate as temporary relay hosts (TRH) in order to utilize the system resource efficiently. The scheme combines network controlled handover, resource allocation and admission control and takes advantages of adaptive transmission rates and multi-hop/relay communication mode. Performance results obtained by computer simulation show that using the proposed resource management scheme can reduce the connection blocking probability i.e. increase the quantity of simultaneous connections.

关键词： Resource allocation

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Service cost optimization in supply balance of sustainable power generation

Service cost optimization in supply balance of sustainable p...

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Portland International Conference on management of engineering and Technology (PICMET)

作者： Junzo Watada Yu-Lien Tai Yingru Wang Jaeseok Choi Mitsushige Shiota Graduate School of Information Production and Systems Waseda University Kitakyushu Japan Department of Electrical Engineering Gyeongsang National University Gyeongnam South Korea MOT Consulting Kitakyushu Japan

With recent trends in utilizing renewable power to develop sustainable energy sources, WTG and PV are increasingly viable economic alternatives for sustainable power generation from conventional fossil fuels. Therefore, multi-state models are being generated to solve the intermittent power production problem of wind turbine generator (WTG) and photo voltaic (PV). However, a disadvantage of these units is the generation of highly variable electricity at several different timescales from hourly, daily, and seasonally. Related to variability is the short-term (hourly or daily) predictability of wind plant output. These problems result in serious damage to sustainable service concerns in both the design and operation of WTG and PV systems. Large scale systems can provide a solution to overcome sustainable service problem but are costly. A sufficient design will cause outages that lead to certain cost losses on the customer side. Therefore, planning a reasonable size is a major dilemma. For this objective, the three models of load model, generation model, and service cost model should be built. For the first two models, the loss of load expected (LOEE) and the loss of load expected (LOLE) can be calculated. Then, this reliability characteristic is evaluated with the existing system of generation units to decide the range of required renewable generators. Finally, the cost model is constructed with consideration of the sustainable service cost. The fuel and operation costs obviously contribute a rather large portion to the utility cost. From the total service cost chart, the amount that the sustainable service worth is tremendous when forced outage at a high level occurs and the customer is not fulfilled. However, the utility cost becomes the primary of the total service costs when sufficient capacity is constructed in the system, which is invested mainly to the conventional generating. The utility cost of renewable energy changes with an increases in WTG and PV but remai

关键词： Power system reliability Reliability Biological system modeling Load modeling Renewable energy resources Solar energy

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WORKSHOP: The role of expectations in intuitive human-robot interaction

WORKSHOP: The role of expectations in intuitive human-robot ...

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ACM/IEEE International Conference on Human-Robot Interaction (HRI)

作者： Verena Hafner Manja Lohse Joachim Meyer Yukie Nagai Britta Wrede Department of Computer Science Cognitive Robotics Berlin Germany CoR-Laboratory and Applied Informatics Technical Faculty Bielefeld University Germany Department of Industrial Engineering and Management University of Negev Israel Department of Adaptive Machine Systems Graduate School of Engineering Osaka University Japan Head of CoR-Laboratory research group Hybrid Society Technical Faculty Bielefeld University Germany

Human interaction is highly intuitive: we infer reactions of our opponents mainly from what we have learned in years of experience and often assume that other people have the same knowledge about certain situations, abilities, and expectations as we do. In human-robot interaction (HRI) we cannot take for granted that this is equally true since HRI is asymmetrical. In other words, robots have different abilities, knowledge, and expectations than humans. They need to react appropriately to human expectations and behaviour. With this respect, scientific advances have been made to date for applications in entertainment and service robotics that largely depend on intuitive interaction. However, HRI today is often still unnatural, slow, and unsatisfactory for the human interlocutor. Both the sensorimotor interaction with environment and interlocutor, and the social aspects of the interaction still need to be researched and improved. Therefore, this full-day workshop aims to bring together researchers from different scientific fields to discuss these crosscutting issues and to exchange views on what are the preconditions and principles of intuitive interaction.

关键词： Educational institutions Computer science Robot sensing systems Electronic mail Humans Industrial engineering

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