The recording characteristics of DuPont's HRF-150 photopolymer film are described. The application of these films for datastorage using the 3-D holographic disk architecture is presented. The required system'...
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A heat transfer model for hotplate baking is combined with a mass transfer model for solvent diffusion to predict the major effects of photoresist prebaking for photolithography. Solvent diffusivity as a function of s...
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ISBN:
(纸本)0819414905
A heat transfer model for hotplate baking is combined with a mass transfer model for solvent diffusion to predict the major effects of photoresist prebaking for photolithography. Solvent diffusivity as a function of solvent concentration and temperature is determined experimentally. The results of the model are a complete time-temperature history of the wafer, final solvent distribution within the resist film, and final resist thickness.
Digital medical images (scanned x-ray photographs, computed tomography, magnetic resonance imagery, ...) will consume 2 - 3 orders of magnitude more space then similar numbers of other images managed by digital storag...
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ISBN:
(纸本)0819414603
Digital medical images (scanned x-ray photographs, computed tomography, magnetic resonance imagery, ...) will consume 2 - 3 orders of magnitude more space then similar numbers of other images managed by digital storage subsystems. We investigate what a hospital will have to pay for a Picture Acquisition and Communication System (PACS). Assuming that tangible displaced costs--the costs of creating, storing, and managing film-- define the upper bound of what hospitals will be willing to pay for workstations, network, and digital storage, we find the EDP solution to be affordable today and attractive in two years. The archival medium currently favored by PACS researchers in optical disk technology. Performance and cost characteristics are likely to make magnetic tape juke box technology a better choice. The published literature teaches much of what is needed for optimal data compression. Uncertainty about liability will persuade some radiologists to save data beyond the noise-determined limits. A practical system will charge for data stored and transmitted and allow each user to balance cost and risk.
This work is devoted to the development of diffractive and quasi diffractive optical elements characterized by the microrelief height ranging from several microns up to 180 k. The technology of the synthesis is based ...
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The effect of cross talk on the storage time and bit-error-rate (BER) of fiber-loop buffers was investigated experimentally. A semiconductor laser amplifier operating as a gate was used to feed a storage cell under va...
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ISBN:
(纸本)1557523304
The effect of cross talk on the storage time and bit-error-rate (BER) of fiber-loop buffers was investigated experimentally. A semiconductor laser amplifier operating as a gate was used to feed a storage cell under varying injection current values. BER measurements were then carried out for a given number of circulations. The experimental results were found to be in good agreement with existing theoretical data.
With the increase in business automation and the widespread availability and low cost of computer systems, law enforcement agencies have seen a corresponding increase in criminal acts involving computers. The examinat...
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ISBN:
(纸本)0819413879
With the increase in business automation and the widespread availability and low cost of computer systems, law enforcement agencies have seen a corresponding increase in criminal acts involving computers. The examination of computer evidence is a new field of forensic science with numerous opportunities for research and development. Research is needed to develop new software utilities to examine computer storage media, expert systems capable of finding criminal activity in large amounts of data, and to find methods of recovering data from chemically and physically damaged computer storage media. In addition, defeating encryption and password protection of computer files is also a topic requiring more research and development.
The behavior of the focus-exposure window for a half micron process was analyzed across a range of resist thicknesses. The range examined was selected to encompass a minima through maxima region of the I-line swing cu...
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ISBN:
(纸本)0819414905
The behavior of the focus-exposure window for a half micron process was analyzed across a range of resist thicknesses. The range examined was selected to encompass a minima through maxima region of the I-line swing curve. This analysis is shown for an I-line resist; the undyed version contrasted to the dyed. The process tube characterization method calculates the common corridor exposure latitude for the two resist data sets. The common corridor for a given resist system defines that area in the focus-exposure plane that meets a single process specification for all the resist thicknesses in the selected swing curve range. In this study the undyed resist demonstrates a superior process window at a given resist thickness but is found to be inferior to the dyed resist as determined by the process tube characterization method.
This paper will present a technical description of the NOVUS Image Archive System and discuss evaluations underway at two of our Beta test sites. Testing has been underway in a university hospital setting and at a cli...
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ISBN:
(纸本)0819414603
This paper will present a technical description of the NOVUS Image Archive System and discuss evaluations underway at two of our Beta test sites. Testing has been underway in a university hospital setting and at a clinical off-site imaging center. Results obtained to date regarding efficiencies gained and cost savings realized, and an outline of future expansion plans for the technology will be addressed.
It is now U.S. defense policy that there will be no new platform starts. The emphasis for platforms will be on O&M cost reduction, life-extension improvements, and force-multiplier-device upgrades. There is also a...
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ISBN:
(纸本)0819413879
It is now U.S. defense policy that there will be no new platform starts. The emphasis for platforms will be on O&M cost reduction, life-extension improvements, and force-multiplier-device upgrades. There is also an increasing emphasis on hand-held force-multiplier devices for individuals, which is the focus of this paper. Engineering issues include operations analysis, weight, cube, cost, prime power, ease of use, datastorage, reliability, fault tolerance, data communications and human factors. Two examples of hand-held devices are given. Applications include USMC, Army, SOCOM, DEA, FBI, SS, Border Patrol and others. Barriers to adoption of such technology are also discussed.
advances in storage, compression, and network technology are making support for Video-On-Demand applications feasible. Continuous and real time data needs of this application require resource management and scheduling...
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ISBN:
(纸本)0818655305
advances in storage, compression, and network technology are making support for Video-On-Demand applications feasible. Continuous and real time data needs of this application require resource management and scheduling of storage devices. This paper discusses a model for scheduling storage devices to guarantee rate requirements for continuous media. We present an analysis of this class of schedulers and derive a feasibility condition and its buffer requirements. The condition is used for admission control of new requests, operations on existing requests, and to configure block sizes and main memory requirements. The analysis presented here yields solutions in the continuous domain. However, due to the discrete nature of the disk scheduler a solution from this analysis cannot be implemented. We discuss transformations of the derived solution into one in the discrete domain while ensuring guaranteed data rate.
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