نتایج جستجو برای: llr
تعداد نتایج: 609 فیلتر نتایج به سال:
Lunar Laser Ranging studies the Moon’s internal structure and properties by tracking the variations in the orientation and tidal distortion of the Moon as a function of time. Future missions to the Moon’s surface should include new laser ranging instrumentation capable of improved range accuracy. A Planetary Science Decadal Survey White Paper: “Lunar Science and Lunar Laser Ranging” Page 1 of 7...
Abstract Since 1969 Lunar Laser Ranging (LLR) data have been collected by different observatories and analysed various analysis groups. LLR is providing the longest time series of any space geodetic technique for studying Earth-Moon dynamics. In recent years, observations carried out with larger telescopes at infra-red (IR) wavelength, resulting in a better distribution precise over lunar orbit...
Recently, commercial speaker verification systems have been applied to forensic casework. Unfortunately, these systems were not custom tailored to current needs. In this paper we try to identify general guidelines towards establishing an improved forensic speaker verification methodology. A main issue is the recognition rate, which highly deteriorates in noisy conditions, preventing a reliable ...
In wireless sensor networks, the energy consumption is mainly occurred in the stage of information transmission. The Low Density Parity Check code can make full use of the channel information to save energy. Because of the widely used decoding algorithm of the Low Density Parity Check code, this paper proposes a new decoding algorithm which is based on the LLR-SPA (Sum-Product Algorithm in Log-...
Accurate analysis of precision ranges to the Moon has provided several tests of gravitational theory including the Equivalence Principle, geodetic precession, parameterized postNewtonian (PPN) parameters γ and β, and the constancy of the gravitational constant G. Since the beginning of the experiment in 1969, the uncertainties of these tests have decreased considerably as data accuracies have i...
AIM The aim of this study was to evaluate retrospectively our results for laparoscopic liver resection (LLR) of hepatocellular carcinoma (HCC) including lesions in the posterosuperior segments of the liver in terms of feasibility, outcome, recurrence and survival. MATERIAL OF STUDY Between June 2005 and May 2009, we performed 22 LLR for HCC. The underlying cirrhosis was staged as Child A in 1...
BACKGROUND Malaria elimination requires successful nationwide control efforts. Detecting the spatiotemporal distribution and mapping high-risk areas are useful to effectively target pockets of malaria endemic regions for interventions. OBJECTIVE The aim of the study was to identify patterns of malaria distribution by space and time in unstable malaria transmission areas in northwest Ethiopia....
BACKGROUND The recent emergence of azithromycin-resistant (AZM-R) N. gonorrhoeae isolates that have coevolved decreased susceptibility to extended-spectrum cephalosporins has caused great concern. Here we investigated the prevalence of decreased susceptibility to ceftriaxone (CRO(D)) in AZM-R isolates and genetically characterized AZM-R isolates in Guangzhou, China from 2009 to 2013. METHODS ...
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