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A methanol sensor based on polymer functionalized Quartz Tuning Fork (QTF) has been demonstrated. Thin polymer wires, formed of different polymers and with different additives, were used to form bridges between the two tines of the QTFs. The mechanical properties of the polymer wires, as well as the effective mass of the wires determine the resonant frequency of the QTF sensor. The interaction of...
Recently, both networking and high-performance computing technologies have dramatically advanced. As a result, scientists can access large-scale data captured by scientific measurement devices with ease. Also, recent high-performance computing technologies such as the Grid and cloud computing have allowed scientists to use huge computational power harnessed on the Internet for their analysis of scientific...
Domain Name Systems (DNS) servers provide a critical service to users and application on the internet. At the top of the DNS hierarchy is the Root DNS servers providing pointers to Top Level Domain servers on the Internet. Over the past years the number of Root DNS servers has grown to cope with the exponential growth of the Internet. This paper reports on the status and performance of the Root DNS...
We examined the measurement precision of low-altitude atmospheric echo obtained by a high-precision polarization lidar. Estimation of extinction coefficient of the atmosphere and low-altitude cloud dynamics were also considered.
Resource discovery is a fundamental service of the grid to find out resources suitable for executing user jobs. Traditional resource discovery services of the grid have static structure and centralized or hierarchized, such as Globus MDS. However, with the number of resources composing the grid increased, this approach has two problems, namely, on dynamic changes of the structure in the grid and obtaining...
SHP-2 is a protein tyrosine phosphatase (PTP) that plays an important role in many cellular functions such as development, growth, and death; thus SHP-2 has been hypothesized to play an important role in various diseases such as diabetes, neurodegeneration, and cancer. The importance of the individual roles of different PTPs is not well understood and this is complicated by the lack of specific inhibitors...
The slingshot-2 (SSH-2) protein plays a significant role in different cell functions such as growth and movement. SSH-2 is a phosphatase protein that belongs to a unique class of enzymes called dual specificity phosphatases (DSP) that target the phosphothreonine and phosphotyrosine residues of mitogen-activated protein (MAP) kinases, which regulate cell growth. Because of this, it is of great interest...
Industry widely employs the two-dimensional videoconferencing system as a long distance communication tool, but current limitations such as its tendency to misrepresent eye contact prevent it from becoming more widely adopted. We are exploring the possibility of a three-dimensional videoconferencing system for future interactive streaming of point cloud data, and present the preliminary research results...
In 2005, Osaka University, in Japan, started an international educational program called, Pacific Rim International University (PRIUS), on top of the Pacific Rim Application and Grid Middleware Assembly (PRAGMA) research framework. The PRIUS framework is based on and similar to that of the PRIME program at the University of California San Diego. Through the PRIUS program, Osaka University has explored...
Virtual screening has become an important part of the drug discovery process. Grid computing facilitates this process by providing shared computational resources across different international institutions to run computationally intensive, scientific applications without the need for a centralized supercomputer. This study designed and implemented a flexible, scalable platform to perform a large virtual...
Recently, Grid computing has gathered the attention as a means to efficiently and effectively utilize computational resources among multiple organizations. However, the current Grid technologies do not always provide the computational environment enough to satisfy users' requirements because of the heterogeneity and disconnect among computational resources on the Grid. For the reason, we have been...
The maturity and stability of WSRF and its related technologies is producing a new demand for meta-scheduling WSRF-based services. In fact, many scientific institutions and universities are looking into the possibility of using WSRF-based services as production-level services. For this purpose, they need a meta-scheduling solution that selects one of the WSRF-based services, each of which is deployed...
Recently, the amount of scientific data has been increasing because of technological advancement in measurement and high-performance computing. As the result, visualization technologies are becoming increasingly important to analyze the scientific data. Among visualization technologies, SAGE is gathering attention of scientists in these days. It not only enables the visualization of tens of million...
Parkinson's disease is a brain disease whose medical treatment and remedy have not been established yet, although a cause of this disease is considered to be the insufficient formation and action of dopamine, which plays a role of great importance in brain activity. For this reason, there is an increasing demand on the clinical database pertaining to Parkinson's disease which multiple hospitals and...
Cyberinfrastructure makes the development and deployment of bioinformatics applications easier by providing the framework and components that may be loosely coupled using service oriented architecture. Here we describe an end to end prototype environment that allows existing applications to run on the grid, taking advantage of open source software that provides a portal interface using GridSphere,...
A high-density and quick-turnaround macrocell design method for custom VLSIs is applied to a 500 k-transistor protocol control chip, resulting in a density of about 4000 transistors/mm/sup 2/ using 0.8- mu m BiCMOS technology. An automated adaptive macrocell and a short-time custom VLSI design methodology were developed to make the logic and physical design more adaptable by offering greater variety...
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