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Personal computer

About: Personal computer is a research topic. Over the lifetime, 58809 publications have been published within this topic receiving 800814 citations. The topic is also known as: PC.


Papers
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Journal ArticleDOI
TL;DR: Results indicate that a root-mean-square error in elevation between ±7 and ±15 m can be achieved with ASTER stereo image data of good quality, and the ability to extract elevations from ASTER stereopairs using stereocorrelation techniques meets expectations.
Abstract: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on-board the National Aeronautics and Space Administration's (NASA's) Terra spacecraft provides along-track digital stereo image data at 15-m resolution. As part of ASTER digital elevation model (DEM) accuracy evaluation efforts by the US/Japan ASTER Science Team, stereo image data for four study sites around the world have been employed to validate prelaunch estimates of heighting accuracy. Automated stereocorrelation procedures were implemented using the Desktop Mapping System (DMS) software on a personal computer to derive DEMs with 30- to 150-m postings. Results indicate that a root-mean-square error (RMSE) in elevation between ±7 and ±15 m can be achieved with ASTER stereo image data of good quality. An evaluation of an ASTER DEM data product produced at the US Geological Survey (USGS) EROS Data Center (EDC) yielded an RMSE of ±8.6 m. Overall, the ability to extract elevations from ASTER stereopairs using stereocorrelation techniques meets expectations.

387 citations

Journal ArticleDOI
TL;DR: In this paper, a model of heat transfer and solidification of the continuous casting of steel slabs is described, including phenomena in the mold and spray regions, which can be applied to a wide range of practical problems in continuous casters.
Abstract: A simple, but comprehensive model of heat transfer and solidification of the continuous casting of steel slabs is described, including phenomena in the mold and spray regions. The model includes a one-dimensional (1-D) transient finite-difference calculation of heat conduction within the solidifying steel shell coupled with two-dimensional (2-D) steady-state heat conduction within the mold wall. The model features a detailed treatment of the interfacial gap between the shell and mold, including mass and momentum balances on the solid and liquid interfacial slag layers, and the effect of oscillation marks. The model predicts the shell thickness, temperature distributions in the mold and shell, thickness of the resolidified and liquid powder layers, heat-flux profiles down the wide and narrow faces, mold water temperature rise, ideal taper of the mold walls, and other related phenomena. The important effect of the nonuniform distribution of superheat is incorporated using the results from previous three-dimensional (3-D) turbulent fluid-flow calculations within the liquid pool. The FORTRAN program CONID has a user-friendly interface and executes in less than 1 minute on a personal computer. Calibration of the model with several different experimental measurements on operating slab casters is presented along with several example applications. In particular, the model demonstrates that the increase in heat flux throughout the mold at higher casting speeds is caused by two combined effects: a thinner interfacial gap near the top of the mold and a thinner shell toward the bottom. This modeling tool can be applied to a wide range of practical problems in continuous casters.

381 citations

Patent
04 Feb 1994
TL;DR: In this paper, the authors measure the degree of eccentricity, radius of curvature, and amount of recess of a spherical surface of a ferrule edge by automatically measuring the curvature of interference fringes and the center point of an optical fiber end face on an image memory.
Abstract: PURPOSE:To measure the degree of eccentricity, radius of curvature, and amount of recess of a spherical surface of a ferrule edge by automatically measuring the degree of curvature of interference fringes and the center point of an optical fiber end face on an image memory. CONSTITUTION:Beams of a laser 1 pass through a diffusion lens 2, a beam splitter 4, and a collimater 5 and become parallel rays, pass a plane primary standard 6, and then are applied to a ferrule polished spherical surface 7. The reflection light of the spherical surface 7 forms interference fringes with that of the primary standard 6, is converted to the image of a CCD camera 10 via an image-forming lens 9, and is written into the image memory of a personal computer 12 and is displayed on a monitor 11, thus specifying measurement coordinates with a cursor. The distance between the primary standard 6 and the spherical surface 7 is calculated from a relation equation and then the degree of eccentricity of the spherical surface 7 is measured by reading the center coordinates between the interference pattern and the optical fiber using a personal computer 12, a radius of curvature is measured by the spacing between fringes, and the amount of recess is measured by changing the degree of curvature of interference fringes within the end face of an optical fiber 8 similarly.

379 citations

Patent
15 Jul 1994
TL;DR: In this article, a caregiver drug pump communicates with a remote patient drug pump for data gathering, trouble shooting, and operational program changes, and a computer is provided for communicating locally and/or remotely with a drug pump.
Abstract: The present invention relates to systems and methods for communicating with ambulatory medical devices, such as drug delivery devices, both locally and remotely. In one embodiment, a caregiver drug pump communicates with a remote patient drug pump for data gathering, trouble shooting, and operational program changes. The caregiver drug pump is at least substantially identical in configuration to the patient drug pump. The caregiver drug pump transmits caregiver key input signals to the remote patient drug pump. The patient drug pump receives the key input signals, accesses a desired program, and transmits information for display on the display of the caregiver drug pump. In another embodiment, a computer is provided for communicating locally and/or remotely with a drug pump. The computer may include a display with an image of a pump. The computer may be operated through the use of a mouse or touch screen with respect to the image of the pump, to simulate use of the pump while using the personal computer. The computer may also be used as a training aid for training a caregiver and/or patient how to use the drug pump.

378 citations

Journal ArticleDOI
TL;DR: CRISP runs on a standard personal computer (PC), and is considerably faster than previous systems for CIP, and is designed with strong emphasis on user friendliness.

376 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202310
202227
2021418
2020954
20191,407
20181,342