نتایج جستجو برای: grace

تعداد نتایج: 4708  

2003
Sean Swenson John Wahr P. C. D. Milly

[1] The satellite Gravity Recovery and Climate Experiment (GRACE) provides data describing monthly changes in the geoid, which are closely related to changes in vertically integrated terrestrial water storage. Unlike conventional point or gridded hydrologic measurements, such as those from rain gauges, stream gauges, rain radars, and radiometric satellite images, GRACE data are sets of Stokes c...

2008
CHRISTOPHER HEALEY

When a domain name is registered, the registrant is given five days to cancel for a full refund. While the purpose of this grace period is to protect those who innocently err in the registration process, speculators have taken advantage of the grace period through a process called “domain tasting.” These “domain tasters” register hundreds of thousands of domain names and cancel the vast majorit...

2008
Sean Swenson Don Chambers John Wahr

[1] In this study, we estimate a time series of geocenter anomalies from a combination of data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission and the output from oceanmodels. Amatrix equation is derived relating total geocenter variations to the GRACE coefficients of degrees two and higher and to the oceanic component of the degree one coefficients. We estimate the o...

Journal: :Cancer detection and prevention 2005
Dejana Braithwaite Stephen Sutton James Mackay Judith Stein Jon Emery

BACKGROUND Innovative technologies that enable the collection of family history information and the assessment of breast cancer risk have a potential to enhance the quality of preventive care. We developed a computerized tool that supports stratification of breast cancer risk, genetic risk assessment in the clinical environment (GRACE). METHODS In a preliminary evaluation of the tool's impact...

2009
J. L. Chen C. R. Wilson B. D. Tapley Z. L. Yang G. Y. Niu

[1] Satellite gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) provide new quantitative measures of the 2005 extreme drought event in the Amazon river basin, regarded as the worst in over a century. GRACE measures a significant decrease in terrestrial water storage (TWS) in the central Amazon basin in the summer of 2005, relative to the average of the 5 other summer...

2010
Bo Chen Jianghai Xia Chao Chen Richard D. Miller

The Gravity Recovery and Climate Experiment (GRACE) delivers monthly gravity fields since it was launched in March 2002, which provides a new way to monitor the groundwater storage variations for large regions. In this study, we attempt to apply the GRACE data combined with estimated soil moisture based on the water balance approach to estimate monthly groundwater changes in the western Kansas ...

ژورنال: فیزیک زمین و فضا 2011
بابک امجدی‌پرور عبدالرضا صفری محمدعلی شریفی,

ساختار LL-SST (Low-Low Satellite-to-Satellite Tracking) اولین‌‌بار با پرتاب ماهواره GRACE (Gravity Recovery And Climate Experiment) در 2002 اجرایی شد. برای رسیدن به دقت و حساسیت بیشتر در بازیابی میدان جاذبه زمین در مقیاس جهانی می‌توان ساختار LL-SST را با ساختار HL-SST (High-Low Satellite-to-Satellite Tracking)که قبلاً در ماهواره CHAMP (CHAllenging Minisatellite Payload) استفاده شده ترکیب کرد. اخ...

Journal: :Emergency medicine journal : EMJ 2012
Martin Söderholm Mazdak Malekian Deligani Mariam Choudhary Jonas Björk Ulf Ekelund

BACKGROUND When acute coronary syndrome (ACS) cannot be ruled out, emergency department (ED) patients with chest pain are admitted for in-hospital observation because of the risk of complications such as arrhythmia and acute heart failure. A study was undertaken to compare the ability of three risk prediction models to identify patients at a very low risk of complications. METHODS 559 consecu...

Journal: :Heart 2011
Huon H Gray Robert A Henderson

OBJECTIVE To compare the accuracy of the GRACE score, a strong prognosticator in acute coronary syndrome (ACS) that is calculated using conventional cardiac troponin (cTn) assays, with that calculated with high-sensitivity cTn (hs-cTn) and with the combination of the GRACE score with hs-cTn or B-type natriuretic peptide (BNP). DESIGN Prospective international cohort. Settings University Hospi...

Journal: :Remote Sensing 2016
Ya-Chi Liu Cheinway Hwang Jiancheng Han Ricky Kao Chau-Ron Wu Hsuan-Chang Shih Natthachet Tangdamrongsub

The East China Sea (ECS) is a region with shallow continental shelves and a mixed oceanic circulation system allowing sediments to deposit on its inner shelf, particularly near the estuary of the Yangtze River. The seasonal northward-flowing Taiwan Warm Current and southward-flowing China Coastal Current trap sediments from the Yangtze River, which are accumulated over time at rates of up to a ...

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