International Journal of Grid and Utility Computing, 2011
The existing resource and topology heterogeneity has divided the scheduling solutions into local ... more The existing resource and topology heterogeneity has divided the scheduling solutions into local schedulers and high-level schedulers (a.k.a. meta-schedulers). Although much work has been proposed to optimise job queue based scheduling, seldom has attention been put on the job sharing behaviours between decentralised distributed resource pools, which in turn raises a notable opportunity to exploit and optimise the process of job sharing between reachable grid dynamically and proactively.
2010 24th Ieee International Conference on Advanced Information Networking and Applications, 2010
Much work has been done to exploit the effectiveness and efficiency of job scheduling upon distri... more Much work has been done to exploit the effectiveness and efficiency of job scheduling upon distributed computational resources. With regard to existing resource topology and administrative constraints, scheduling approaches are designed for different hierarchic layers, for example, scheduling for job queues of local resource management systems (local scheduling), and scheduling for job queues of high level schedulers (also known as meta-schedulers or grid schedulers). Such scheduling approaches mainly focus on optimizing job queues of the hosting nodes, which are interconnected with computational resources directly or indirectly. In the real world (or in a community-based grid), a grid is comprised of nodes with different computing power and scheduling preferences, which in turn, raise a notable opportunity that is to exploit and optimize the process of job sharing between reachable grid nodes via improving the job allocation and efficiency ratio.
This study investigates the effect of CuO on the sintering behavior, dielectric properties, and m... more This study investigates the effect of CuO on the sintering behavior, dielectric properties, and microstructures of Ba 0.6 Sr 0.4 TiO 3 (BST) ceramics. The ceramics were sintered in air at temperatures ranging from 10001 to 12301C. It is found that a small amount of added CuO (0.6 mol%) can significantly increase the density and improve the dielectric properties of BST ceramics. Doped BST ceramics can be sintered to a density 495% of the theoretical density at 11501C. scanning electron microscopic observations show that the BST grain sizes increase with increasing amounts of CuO. No secondary phases in the BST ceramics are observed using X-ray diffraction pattern for CuO additions up to 0.9 mol%. However, compositional analysis using transmission electron microscopy-EDX for the BST ceramics with 0.9 mol% CuO sintered at 11501C showed that a small level of secondary phase formation is present. On the other hand, large dislocations are observed for BST with 0.6 mol% CuO addition as a result of lattice distortion, which creates the vacancy condensation because of the atomic mismatch in the solid solutions. Optimal CuO doping concentrations can reduce the loss tangents of BST that can also ensure a high dielectric constant. When the doping concentration of CuO is 0.6 mol% and the ceramic is sintered at 11501C, the BST ceramic has the following properties at 1 MHz: dielectric constant 5 4094, tan d 5 0.55%.
Many modern handheld devices feature functions of taking pictures, shooting video clips, or recor... more Many modern handheld devices feature functions of taking pictures, shooting video clips, or recording audio sounds. However, such devices are usually equipped with small display panels and poor acoustic equipments. In order to achieve better user experience with high quality panel or audio stereo, users often need to transfer or copy digital media contents to external powerful devices, like personal computers and home theater devices. Nevertheless, it can be awkward or difficult for users to follow up a series of operations of connection setup and media content transfer. In this paper, we present a mobile media content sharing mechanism based the UPnP framework and wireless communication technology in home network environments. As a result, users could conveniently share media contents stored in mobile devices and play them by other home networked player devices. The demonstration result shows that the developed mechanism is attractive and of practicability and ease of use.
This paper studies the conditions under which peer-to-peer (P2P) technology may be beneficial in ... more This paper studies the conditions under which peer-to-peer (P2P) technology may be beneficial in providing IPTV services over typical network architectures. It has two major contributions. First, we contrast two network models used to study the performance of such a system: a commonly used logical "Internet as a cloud" model and a "physical" model that reflects the characteristics of the underlying network. Specifically, we show that the cloud model overlooks important architectural aspects of the network and may drastically overstate the benefits of P2P technology by a factor of 3 or more. Second, we provide a cost-benefit analysis of P2P video content delivery focusing on the profit trade-offs for different pricing/incentive models rather than purely on capacity maximization. In particular, we find that under high volume of video demand, a P2P built-in incentive model performs better than any other model for both high-definition and standard-definition media, while the usage-based model generally generates more profits when the request rate is low. The flat-reward model generally falls in-between the usagebased model and the built-in model in terms of profitability.
In this paper, we present a review of the issues that affect the software requirements for a loca... more In this paper, we present a review of the issues that affect the software requirements for a local area network. We introduce protocols for the local area networks and characterize their software needs. Two approaches to operating systems are outlined and examples of each approach are presented. Various applications which use local area networks and performance issues are also discussed.
International Journal of Distributed Systems and Technologies, 2010
This work presents the design and architecture of a decentralized grid scheduler named MaGate, wh... more This work presents the design and architecture of a decentralized grid scheduler named MaGate, which is developed within the SmartGRID project and focuses on grid scheduler interoperation. The MaGate scheduler is modular structured, and emphasizes the functionality, procedure and policy of delegating local unsuited jobs to appropriate remote MaGates within the same grid system. To avoid just another isolated solution, web services and several existing and emerging grid standards are adopted, as well as a series of interfaces to both publish MaGate capabilities and integrate functionalities from external grid components. Meanwhile, a specific swarm intelligence solution is employed as a critical complementary service for MaGate, to maintain an optimized peer-to-peer overlay that supports efficient resource discovery. Regarding evaluation, the effectiveness brought by job sharing within a physically connected grid community with the use of the MaGate has been illustrated by means of experiments on communities of different scale, and under various scenarios.
This paper presents a framework to track multiple persons in realtime. First, a method with real-... more This paper presents a framework to track multiple persons in realtime. First, a method with real-time and adaptable capability is proposed to extract face-like regions based on skin, motion, and silhouette features. Then, a two-stage face verification algorithm is proposed to quickly eliminate false faces based on the face geometries and the Support Vector Machine(SVM). In order to overcome the effect of lighting changes, a method of color constancy compensation is applied. Then, a robust tracking scheme is applied to track multiple persons based on a face-status table. With the table, the system has extreme capabilities to track different persons at different statuses, which is quite important in face-related applications. Experimental results show that the proposed method is much robust and powerful than other traditional methods.
2014 IEEE 14th International Working Conference on Source Code Analysis and Manipulation, 2014
Laurie Williams, North Carolina State University, USA, Program Chair ... Erik Arisholm, Simula, N... more Laurie Williams, North Carolina State University, USA, Program Chair ... Erik Arisholm, Simula, Norway Doo-Hwan Bae, KAIST, Korea Farokh Bastani, University of Texas at Dallas, USA Fevzi Belli, University of Paderbonn, Germany Wing Kwong Chan, City University of Hong Kong, Hong Kong TY Chen, Swinburne University of Technology, Australia Stefan Christiernin, University West, Sweden Myra Cohen, University of Nebraska Lincoln, USA Michel Cukier, University of Maryland, USA Josh Dehlinger, University of Virginia, USA Tadashi ...
2007 International Symposium on Applications and the Internet Workshops, 2007
Many modern handheld devices feature functions of taking pictures, shooting video clips, or recor... more Many modern handheld devices feature functions of taking pictures, shooting video clips, or recording audio sounds. However, such devices are usually equipped with small display panels and poor acoustic equipments. In order to achieve better user experience with high quality panel or audio stereo, users often need to transfer or copy digital media contents to external powerful devices, like personal computers and home theater devices. Nevertheless, it can be awkward or difficult for users to follow up a series of operations of connection setup and media content transfer. In this paper, we present a mobile media content sharing mechanism based the UPnP framework and wireless communication technology in home network environments. As a result, users could conveniently share media contents stored in mobile devices and play them by other home networked player devices. The demonstration result shows that the developed mechanism is attractive and of practicability and ease of use.
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2009
Formation and coexistence of tricalcium silicate (C3S) and calcium sulphoaluminate (C4A3 $$ \bar ... more Formation and coexistence of tricalcium silicate (C3S) and calcium sulphoaluminate (C4A3 $$ \bar S $$) minerals in Portland cement clinker containing calcium sulphoaluminate were investigated. The f-CaO content, mineral composite and formation of mineral in the clinker were analyzed respectively by chemical analysis, differential scanning calorimetry(DSC) and X-ray diffraction. The results show that, adding a suitable amount of BaO can
The purpose of this study was to optimize the preparation conditions of Lycium barbarum polysacch... more The purpose of this study was to optimize the preparation conditions of Lycium barbarum polysaccharides liposome (LBPL) by response surface methodology (RSM) and to investigate the effect of LBPL activating function of peritoneal macrophages. LBPL was prepared using the reverse-phase evaporation method. The optimal preparation conditions of LBPL by RSM were as follows: the ratio of lipid to drug (w/w) of 25:1, the ultrasound time of 14 min and the ratio of soybean phospholipids to cholesterol (w/w) of 2.4:1. Under these conditions, the experimental encapsulation efficiency of LBPL was 86.37±0.63%, which was close to the predicted value. These indicated that LBPL with high entrapping efficiency and small particle size could be prepared by the reverse-phase evaporation method, which is applied easily. Furthermore, macrophages are the key players in the innate immune system. LBPL could effectively enhance peritoneal macrophages phagocytosis and resulted in inducing NO (nitric oxide) production in mouse peritoneal macrophages.
International Journal of Grid and Utility Computing, 2011
The existing resource and topology heterogeneity has divided the scheduling solutions into local ... more The existing resource and topology heterogeneity has divided the scheduling solutions into local schedulers and high-level schedulers (a.k.a. meta-schedulers). Although much work has been proposed to optimise job queue based scheduling, seldom has attention been put on the job sharing behaviours between decentralised distributed resource pools, which in turn raises a notable opportunity to exploit and optimise the process of job sharing between reachable grid dynamically and proactively.
2010 24th Ieee International Conference on Advanced Information Networking and Applications, 2010
Much work has been done to exploit the effectiveness and efficiency of job scheduling upon distri... more Much work has been done to exploit the effectiveness and efficiency of job scheduling upon distributed computational resources. With regard to existing resource topology and administrative constraints, scheduling approaches are designed for different hierarchic layers, for example, scheduling for job queues of local resource management systems (local scheduling), and scheduling for job queues of high level schedulers (also known as meta-schedulers or grid schedulers). Such scheduling approaches mainly focus on optimizing job queues of the hosting nodes, which are interconnected with computational resources directly or indirectly. In the real world (or in a community-based grid), a grid is comprised of nodes with different computing power and scheduling preferences, which in turn, raise a notable opportunity that is to exploit and optimize the process of job sharing between reachable grid nodes via improving the job allocation and efficiency ratio.
This study investigates the effect of CuO on the sintering behavior, dielectric properties, and m... more This study investigates the effect of CuO on the sintering behavior, dielectric properties, and microstructures of Ba 0.6 Sr 0.4 TiO 3 (BST) ceramics. The ceramics were sintered in air at temperatures ranging from 10001 to 12301C. It is found that a small amount of added CuO (0.6 mol%) can significantly increase the density and improve the dielectric properties of BST ceramics. Doped BST ceramics can be sintered to a density 495% of the theoretical density at 11501C. scanning electron microscopic observations show that the BST grain sizes increase with increasing amounts of CuO. No secondary phases in the BST ceramics are observed using X-ray diffraction pattern for CuO additions up to 0.9 mol%. However, compositional analysis using transmission electron microscopy-EDX for the BST ceramics with 0.9 mol% CuO sintered at 11501C showed that a small level of secondary phase formation is present. On the other hand, large dislocations are observed for BST with 0.6 mol% CuO addition as a result of lattice distortion, which creates the vacancy condensation because of the atomic mismatch in the solid solutions. Optimal CuO doping concentrations can reduce the loss tangents of BST that can also ensure a high dielectric constant. When the doping concentration of CuO is 0.6 mol% and the ceramic is sintered at 11501C, the BST ceramic has the following properties at 1 MHz: dielectric constant 5 4094, tan d 5 0.55%.
Many modern handheld devices feature functions of taking pictures, shooting video clips, or recor... more Many modern handheld devices feature functions of taking pictures, shooting video clips, or recording audio sounds. However, such devices are usually equipped with small display panels and poor acoustic equipments. In order to achieve better user experience with high quality panel or audio stereo, users often need to transfer or copy digital media contents to external powerful devices, like personal computers and home theater devices. Nevertheless, it can be awkward or difficult for users to follow up a series of operations of connection setup and media content transfer. In this paper, we present a mobile media content sharing mechanism based the UPnP framework and wireless communication technology in home network environments. As a result, users could conveniently share media contents stored in mobile devices and play them by other home networked player devices. The demonstration result shows that the developed mechanism is attractive and of practicability and ease of use.
This paper studies the conditions under which peer-to-peer (P2P) technology may be beneficial in ... more This paper studies the conditions under which peer-to-peer (P2P) technology may be beneficial in providing IPTV services over typical network architectures. It has two major contributions. First, we contrast two network models used to study the performance of such a system: a commonly used logical "Internet as a cloud" model and a "physical" model that reflects the characteristics of the underlying network. Specifically, we show that the cloud model overlooks important architectural aspects of the network and may drastically overstate the benefits of P2P technology by a factor of 3 or more. Second, we provide a cost-benefit analysis of P2P video content delivery focusing on the profit trade-offs for different pricing/incentive models rather than purely on capacity maximization. In particular, we find that under high volume of video demand, a P2P built-in incentive model performs better than any other model for both high-definition and standard-definition media, while the usage-based model generally generates more profits when the request rate is low. The flat-reward model generally falls in-between the usagebased model and the built-in model in terms of profitability.
In this paper, we present a review of the issues that affect the software requirements for a loca... more In this paper, we present a review of the issues that affect the software requirements for a local area network. We introduce protocols for the local area networks and characterize their software needs. Two approaches to operating systems are outlined and examples of each approach are presented. Various applications which use local area networks and performance issues are also discussed.
International Journal of Distributed Systems and Technologies, 2010
This work presents the design and architecture of a decentralized grid scheduler named MaGate, wh... more This work presents the design and architecture of a decentralized grid scheduler named MaGate, which is developed within the SmartGRID project and focuses on grid scheduler interoperation. The MaGate scheduler is modular structured, and emphasizes the functionality, procedure and policy of delegating local unsuited jobs to appropriate remote MaGates within the same grid system. To avoid just another isolated solution, web services and several existing and emerging grid standards are adopted, as well as a series of interfaces to both publish MaGate capabilities and integrate functionalities from external grid components. Meanwhile, a specific swarm intelligence solution is employed as a critical complementary service for MaGate, to maintain an optimized peer-to-peer overlay that supports efficient resource discovery. Regarding evaluation, the effectiveness brought by job sharing within a physically connected grid community with the use of the MaGate has been illustrated by means of experiments on communities of different scale, and under various scenarios.
This paper presents a framework to track multiple persons in realtime. First, a method with real-... more This paper presents a framework to track multiple persons in realtime. First, a method with real-time and adaptable capability is proposed to extract face-like regions based on skin, motion, and silhouette features. Then, a two-stage face verification algorithm is proposed to quickly eliminate false faces based on the face geometries and the Support Vector Machine(SVM). In order to overcome the effect of lighting changes, a method of color constancy compensation is applied. Then, a robust tracking scheme is applied to track multiple persons based on a face-status table. With the table, the system has extreme capabilities to track different persons at different statuses, which is quite important in face-related applications. Experimental results show that the proposed method is much robust and powerful than other traditional methods.
2014 IEEE 14th International Working Conference on Source Code Analysis and Manipulation, 2014
Laurie Williams, North Carolina State University, USA, Program Chair ... Erik Arisholm, Simula, N... more Laurie Williams, North Carolina State University, USA, Program Chair ... Erik Arisholm, Simula, Norway Doo-Hwan Bae, KAIST, Korea Farokh Bastani, University of Texas at Dallas, USA Fevzi Belli, University of Paderbonn, Germany Wing Kwong Chan, City University of Hong Kong, Hong Kong TY Chen, Swinburne University of Technology, Australia Stefan Christiernin, University West, Sweden Myra Cohen, University of Nebraska Lincoln, USA Michel Cukier, University of Maryland, USA Josh Dehlinger, University of Virginia, USA Tadashi ...
2007 International Symposium on Applications and the Internet Workshops, 2007
Many modern handheld devices feature functions of taking pictures, shooting video clips, or recor... more Many modern handheld devices feature functions of taking pictures, shooting video clips, or recording audio sounds. However, such devices are usually equipped with small display panels and poor acoustic equipments. In order to achieve better user experience with high quality panel or audio stereo, users often need to transfer or copy digital media contents to external powerful devices, like personal computers and home theater devices. Nevertheless, it can be awkward or difficult for users to follow up a series of operations of connection setup and media content transfer. In this paper, we present a mobile media content sharing mechanism based the UPnP framework and wireless communication technology in home network environments. As a result, users could conveniently share media contents stored in mobile devices and play them by other home networked player devices. The demonstration result shows that the developed mechanism is attractive and of practicability and ease of use.
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2009
Formation and coexistence of tricalcium silicate (C3S) and calcium sulphoaluminate (C4A3 $$ \bar ... more Formation and coexistence of tricalcium silicate (C3S) and calcium sulphoaluminate (C4A3 $$ \bar S $$) minerals in Portland cement clinker containing calcium sulphoaluminate were investigated. The f-CaO content, mineral composite and formation of mineral in the clinker were analyzed respectively by chemical analysis, differential scanning calorimetry(DSC) and X-ray diffraction. The results show that, adding a suitable amount of BaO can
The purpose of this study was to optimize the preparation conditions of Lycium barbarum polysacch... more The purpose of this study was to optimize the preparation conditions of Lycium barbarum polysaccharides liposome (LBPL) by response surface methodology (RSM) and to investigate the effect of LBPL activating function of peritoneal macrophages. LBPL was prepared using the reverse-phase evaporation method. The optimal preparation conditions of LBPL by RSM were as follows: the ratio of lipid to drug (w/w) of 25:1, the ultrasound time of 14 min and the ratio of soybean phospholipids to cholesterol (w/w) of 2.4:1. Under these conditions, the experimental encapsulation efficiency of LBPL was 86.37±0.63%, which was close to the predicted value. These indicated that LBPL with high entrapping efficiency and small particle size could be prepared by the reverse-phase evaporation method, which is applied easily. Furthermore, macrophages are the key players in the innate immune system. LBPL could effectively enhance peritoneal macrophages phagocytosis and resulted in inducing NO (nitric oxide) production in mouse peritoneal macrophages.
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Papers by Yennun Huang