نتایج جستجو برای: grace

تعداد نتایج: 4708  

2017
Tamara Jakimov Igor Mrdović Branka Filipović Marija Zdravković Aleksandra Djoković Saša Hinić Nataša Milić Branislav Filipović

AIM To compare the prognostic performance of three major risk scoring systems including global registry for acute coronary events (GRACE), thrombolysis in myocardial infarction (TIMI), and prediction of 30-day major adverse cardiovascular events after primary percutaneous coronary intervention (RISK-PCI). METHODS This single-center retrospective study involved 200 patients with acute coronary...

2009
Juana Paul Moiwo Yonghui Yang Huilong Li Shumin Han Yukun Hu

Water storage change has implications not only for the hydrological cycle, but also for sustainable water resource management in especially semi-arid river basins. Satellite/remote sensing techniques have gained increasing application in monitoring basin and regional hydrological processes in recent decades. In this study, the latest version of GRACE (Gravity Recovery and Climate Experiment) is...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده نقشه برداری 1389

در طی دو دهه اخیر ماهواره های زیادی با کاربردهای گوناگون و از جمله کاربردهای ژئوماتیکی در ارتفاع نزدیک به سطح زمین در مدار قرار گرفته اند که برای نمونه می توان به ماهواره های topex/poseidon، champ، grace و goce اشاره کرد. به دلیل آنکه ماهواره های در ارتفاع پایین بیشتر از سایر ماهواره ها تحت تاثیر نیروهای اغتشاشی قرار دارند، تعیین مدار آنها دارای پیچیدگی ها و چالش های خاصی است که توجه بسیاری از ...

2007
Roelof Rietbroek

The satellite mission GRACE (Gravity Recovery and Climate Experiment) provides monthly solutions of the global gravity field of the Earth. Temporal variations in gravity reflect mass redistributions over the Earth. Those mass movements are caused by physical phenomena such as ice sheet dynamics, accumulation of hydrological masses over land, the dynamics in the solid Earth and the dynamics in t...

2009
Krishna G. Aragam Umesh U. Tamhane Eva Kline-Rogers Jin Li Keith A. A. Fox Shaun G. Goodman Kim A. Eagle Hitinder S. Gurm

BACKGROUND The Thrombolysis in Myocardial Infarction (TIMI) risk scores for Unstable Angina/Non-ST-elevation myocardial infarction (UA/NSTEMI) and ST-elevation myocardial infarction (STEMI) and the Global Registry of Acute Coronary Events (GRACE) risk scores for in-hospital and 6-month mortality are established tools for assessing risk in Acute Coronary Syndrome (ACS) patients. The objective of...

2015
P. Grace Kanmani Prince R. Rani Hemamalini Suresh Kumar

The analysis of EEG signals plays a vital role in the detection of Seizure. The EEG signal of a normal person varies when compared to that of a seizure affected person. A new wavelet is created which closely represents a normal EEG wave. The discrete wavelet transform using the new wavelet family is applied to the input EEG signals. Since the new wavelet represents the normal EEG wave pattern t...

Journal: :Remote Sensing 2022

Observations from the Gravity Recovery and Climate Experiment (GRACE) GRACE Follow-On (GRACE-FO) missions can be used to estimate gravimetric excitation of polar motion (PM), which reflects contribution mass changes in continental hydrosphere cryosphere PM variation. Many solutions for Earth’s gravity field variations have been developed by institutes around world based on GRACE/GRACE-FO data; ...

2004
Lorenzo Iorio

In this paper we critically analyze the so far performed and proposed tests for measuring the general relativistic Lense-Thirring effect in the gravitational field of the Earth with some of the existing accurately tracked artificial satellites. The impact of the 2nd generation GRACE-only EIGEN-GRACE02S Earth gravity model and of the 1st CHAMP+GRACE+terrestrial gravity combined EIGEN-CG01C Earth...

Journal: :Nature 1949

Journal: :The Iowa Review 2004

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