نتایج جستجو برای: giss
تعداد نتایج: 465 فیلتر نتایج به سال:
Introduction Conclusions References
Distributed geographic information systems (GISS) have advantages in data sharing, reliability, efficiency, and system growth. Query optimization substantially affects the performance of a distributed GIS. In developing a system, query optimization is one of the technical issues that must first be addressed. A distributed GIs is different from a non-spatial distributed database and requires spe...
Abstract Investment casting has long been known as a process that can produce complex parts with fine details. However, it not used widely for need to be anodized and whose nonuniform color is affected by the type of cast aluminum. Although 6063 aluminum in anodizing decoration purposes, almost entirely wrought. Some studies have aluminum, but no investment reported. The objective this work dev...
Differences in access to healthcare services and the resulting adverse health outcomes are major public health priorities. The Institute of Medicine and the Department of Health and Human Services have identified the need for strategies to improve access to healthcare services and to support the improvement of health outcomes. The literature documents health disparities associated with healthca...
Using the NASA Goddard Institute for Space Studies (GISS) climate model, it is shown that with proper choice of the gravity wave momentum flux entering the stratosphere and relatively fine vertical layering of at least 500 m in the upper troposphere-lower stratosphere (UTLS), a realistic stratospheric quasi-biennial oscillation (QBO) is modeled with the proper period, amplitude, and structure d...
The volume and number of datasets about our earth are growing at an ever-increasing rate. However, sharing and integration of these datasets by different Geographic Information Systems (GISs) have been difficult due to incompatible data formats, hardware and software platforms. There is a need for developing an industry standard architecture for developing GISs that supports geodata sharing, in...
In this paper, we explore the performance of a novel NASA-GISS algorithm which is used to calibrate and extract aerosol optical depth (AOD) from a portable Multi-filter Shadowband radiometer (MFRSR) instrument in comparison to the standard Langley regression algorithm. We show that the NASA-GISS algorithm results has stable calibration coefficients in comparison to those obtained using the conv...
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