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RISS 인기검색어
- 검색키워드
- 저자 : Raja Bose (검색결과 5 건)
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Thermal performance of a vapor chamber for electronic cooling applications
Jefferson Raja Bose,Nizar Ahammed,Lazarus Godson Asirvatham 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.4
The heat transfer performance of a vapor chamber and its effectiveness in the cooling of electronic devices are experimentally and theoretically investigated in the present work. The power transistor in the circuit board usually operates with electric power that ranges from 15 W to 100 W, which is the heat input to the simulated processor. The heat flux varies between 3300 and 22000 W/m 2 . The simulated processor is cooled with the forced and induced air cooling methods with and without the use of the vapor chamber. Results show a maximum temperature decrease of 26 % and a maximum increase in the convective heat transfer coefficient of 36 %. The minimum value of the thermal resistance through the vapor chamber and the total thermal resistance is 0.195 and 0.82 °C/W, respectively. The experimental results are compared with the ANSYS predicted values.
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Networked Robots using ATLAS Service-Oriented Architecture in the Smart Spaces
Helal, Sumi,Bose, Raja,Lim, Shin-Young,Kim, Hyun Korean Institute of Intelligent Systems 2008 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.8 No.4
We introduce new type of networked robot, Ubiquitous Robotic Companion (URC), embedded with ATLAS Service-oriented architecture for enhancing the space sensing capability. URC is a network-based robotic system developed by ETRI. For years of experience in deploying service with ATLAS sensor platform for elder and people with special needs in smart houses, we need networked robots to assist elder people in their successful daily living. Recently, pervasive computing technologies reveals possibilities of networked robots in smart spaces, consist of sensors, actuators and smart devices can collaborate with the other networked robot as a mobile sensing platform, a complex and sophisticated actuator and a human interface. This paper provides our experience in designing and implementing system architecture to integrate URC robots in pervasive computing environments using the University of Florida's ATLAS service-oriented architecture. In this paper, we focus on the integrated framework architecture of URC embedded with ATLAS platform. We show how the integrated URC system is enabled to provide better services which enhance the space sensing of URC in the smart space by applying service-oriented architecture characterized as flexibility in adding or deleting service components of Ubiquitous Robotic Companion.
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STEPSTONE : An Intelligent Integration Architecture for Personal Tele-Health
Sumi Helal,Raja Bose,Chao Chen,Andy Smith,Scott de Deugd,Diane Cook 한국정보과학회 2011 Journal of Computing Science and Engineering Vol.5 No.3
STEPSTONE is a joint industry-university project to create open source technology that would enable the scalable, “friction-free” integration of device-based healthcare solutions into enterprise systems using a Service Oriented Architecture (SOA). Specifically, STEPSTONE defines a first proposal to a Service Oriented Device Architecture (SODA) framework, and provides for initial reference implementations. STEPSTONE also intends to encourage a broad community effort to further develop the framework and its implementations. In this paper, we present SODA, along with two implementation proposals of SODA’ device integration. We demonstrate the ease by which SODA was used to develop an end-to-end personal healthcare monitoring system. We also demonstrate the ease by which the STEPSTONE system was extended by other participants ?Washington State University ?to include additional devices and end user interfaces. We show clearly how SODA and therefore SODA devices make integration almost automatic, replicable, and scalable. This allows telehealth system developers to focus their energy and attention on the system functionality and other important issues, such as usability, privacy, persuasion and outcome assessment studies.
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STEPSTONE: An Intelligent Integration Architecture for Personal Tele-Health
Helal, Sumi,Bose, Raja,Chen, Chao,Smith, Andy,De Deugd, Scott,Cook, Diane Korean Institute of Information Scientists and Eng 2011 Journal of Computing Science and Engineering Vol.5 No.3
STEPSTONE is a joint industry-university project to create open source technology that would enable the scalable, "friction-free" integration of device-based healthcare solutions into enterprise systems using a Service Oriented Architecture (SOA). Specifically, STEPSTONE defines a first proposal to a Service Oriented Device Architecture (SODA) framework, and provides for initial reference implementations. STEPSTONE also intends to encourage a broad community effort to further develop the framework and its implementations. In this paper, we present SODA, along with two implementation proposals of SODA's device integration. We demonstrate the ease by which SODA was used to develop an end-to-end personal healthcare monitoring system. We also demonstrate the ease by which the STEPSTONE system was extended by other participants - Washington State University - to include additional devices and end user interfaces. We show clearly how SODA and therefore SODA devices make integration almost automatic, replicable, and scalable. This allows telehealth system developers to focus their energy and attention on the system functionality and other important issues, such as usability, privacy, persuasion and outcome assessment studies.
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Networked Robots using ATLAS Service-Oriented Architecture in the Smart Spaces
Sumi Helal,Raja Bose,Shinyoung Lim,Hyun Kim 한국지능시스템학회 2008 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.8 No.4
We introduce new type of networked robot, Ubiquitous Robotic Companion (URC), embedded with ATLAS Service-oriented architecture for enhancing the space sensing capability. URC is a network-based robotic system developed by ETRI. For years of experience in deploying service with ATLAS sensor platform for elder and people with special needs in smart houses, we need networked robots to assist elder people in their successful daily living. Recently, pervasive computing technologies reveals possibilities of networked robots in smart spaces, consist of sensors, actuators and smart devices can collaborate with the other networked robot as a mobile sensing platform, a complex and sophisticated actuator and a human interface. This paper provides our experience in designing and implementing system architecture to integrate URC robots in pervasive computing environments using the University of Florida's ATLAS service-oriented architecture. In this paper, we focus on the integrated framework architecture of URC embedded with ATLAS platform. We show how the integrated URC system is enabled to provide better services which enhance the space sensing of URC in the smart space by applying service-oriented architecture characterized as flexibility in adding or deleting service components of Ubiquitous Robotic Companion.
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