作者：
Jiang, WChiu, WBaylor Coll Med
Program Struct & Computat Biol & Mol Biophys Houston TX 77030 USA Baylor Coll Med
Verna & Marrs McLean Dept Biochem & Mol Biol Houston TX 77030 USA
We have implemented a Web-based simulation program for the contrast transfer function and envelope functions in java and javaScript. The simulation provides interactive controls of all the parameters in those function...
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We have implemented a Web-based simulation program for the contrast transfer function and envelope functions in java and javaScript. The simulation provides interactive controls of all the parameters in those functions. In addition to the predefined functions, users can easily define new functions that use any of the parameters in the preset functions. The most useful feature of this new simulation program is the convenient, universal accessibility through Web browsers on any computer platform that supports java, such as Netscape and Internet Explorer.
Since June 1998, EPFL's Visible Human Slice Server (http://***) allows to extract arbitrarily oriented and positioned slices. More than 300,000 slices are extracted each year. In order to give a 3D view of anatomi...
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ISBN:
(纸本)0819439894
Since June 1998, EPFL's Visible Human Slice Server (http://***) allows to extract arbitrarily oriented and positioned slices. More than 300,000 slices are extracted each year. In order to give a 3D view of anatomic structures, a new service has been added for extracting slice animations along a user-defined trajectory. This service is useful both for research and teaching purposes (http://***/animation/). Extracting slices of animations at any desired position and orientation from the Visible Human volume (Visible Man or Woman) requires both high throughput and much processing power. The I/O disk bandwidth can be increased by accessing more than one disk at the same time, i.e. by striping data across several disks and by carrying out parallel asynchronous disk accesses. Since processing operations such as slice and animation extraction are compute-intensive, they require the program execution to be carried out in parallel on several computers. In the present contribution, we describe the new slice sequence animation service as well as the approach taken for parallelizing this service on a multi-PC multi-disk Web server.
The joint archive facility of the European Southern Observatory (ESO) and the Space Telescope - European Coordinating Facility (ST-ECF) is undertaking particular efforts in the field of associating (grouping) Hubble S...
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ISBN:
(纸本)0819441910
The joint archive facility of the European Southern Observatory (ESO) and the Space Telescope - European Coordinating Facility (ST-ECF) is undertaking particular efforts in the field of associating (grouping) Hubble Space Telescope (HST) observations for a number of years already. By now their users are given means for browsing associations of HST images. Soon the same capability will be provided for spectra as well. Associations of observations can either be defined and driven by requirements imposed by higher level algorithms like co-adding and drizzling techniques or by user defined constraints. In any case we consider these services an important precursor and testbed to a future virtual observatory. Two components complement an on-line interface (***) to such data products: For one part it is the selection process which can be greatly improved by adding preview capabilities for individual or multiple exposures. On the other hand it requires a request handling system which supports the concept of associations and which can expand a given association and computes and delivers calibrated and combined data products.
SEView is a java applet that represents known or predicted elements of a protein or nucleotide sequence. It replaces or supplements the textual format of databases or program output with an interactive, graphical repr...
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SEView is a java applet that represents known or predicted elements of a protein or nucleotide sequence. It replaces or supplements the textual format of databases or program output with an interactive, graphical representation that is easily available through a WWW browser. Independence from the source data's format is achieved through a description language and ad hoc translators, which make the system versatile and flexible.
The Internet offers many new software technologies - the most notable is java. java not only specifies a computer language but serves also as a complete toolbox for building client/server solutions. We use this techno...
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The Internet offers many new software technologies - the most notable is java. java not only specifies a computer language but serves also as a complete toolbox for building client/server solutions. We use this technology for developing a framework for remote computation. As application example serves the parametric multicriteria robustness exploration of the dynamics of a high-fidelity aircraft model
Password typing is the most widely used identity verification method in Web based electronic commerce. Due to its simplicity, however, it is vulnerable to imposter attacks. Keystroke dynamics and password checking can...
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Password typing is the most widely used identity verification method in Web based electronic commerce. Due to its simplicity, however, it is vulnerable to imposter attacks. Keystroke dynamics and password checking can be combined to result in a more secure verification system. We propose an autoassociator neural network that is trained with the timing vectors of the owner's keystroke dynamics and then used to discriminate between the owner and an imposter. An imposter typing the correct password can be detected with very high accuracy using the proposed approach. This approach can be effectively implemented by a java applet and used for the Web.
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