نتایج جستجو برای: 1d satellite

تعداد نتایج: 101514  

2017
Oscar Dalmau Cedeño Teresa E. Alarcón Francisco E. Oliva

Classification methods based on Gaussian Markov Measure Field Models and other probabilistic approaches have to face the problem of construction of the likelihood. Typically, in these methods, the likelihood is computed from 1D or 3D histograms. However, when the number of information sources grows, as in the case of satellite images, the histogram construction becomes more difficult due to the...

2015
Hyoungsig Cho Seunghwan Hong Sangmin Kim Hyokeun Park Ilsuk Park Hong-Gyoo Sohn

A terrestrial Light Detection and Ranging (LIDAR) system has high productivity and accuracy for topographic mapping, but the harsh conditions of Antarctica make LIDAR operation difficult. Low temperatures cause malfunctioning of the LIDAR system, and unpredictable strong winds can deteriorate data quality by irregularly shaking co-registration targets. For stable and efficient LIDAR operation i...

Journal: :تحقیقات موتور 0
ابوالفضل محمدابراهیم a. mohammadebrahim امیر حسین کاکایی a.h. kakaee

the objective of this work was to develop a new design of an intake manifold through a 1d simulation. it is quite familiar that a duly designed intake manifold is essential for the optimal performance of an internal combustion engine. air flow inside the intake manifold is one of the important factors, which governs the engine performance and emissions. hence the flow phenomenon inside the inta...

ژورنال: :دانش آب و خاک 0
احسان محمدی - دانش آموخته کارشناسی ارشد آبیاری و زهکشی، دانشکده آب وخاک، دانشگاه زابل معصومه دلبری دانشیار گروه مهندسی آب، دانشکده آب و خاک، دانشگاه زابل

در این تحقیق از نرم­افزار hydrus-1d برای شبیه­سازی انتقال آب و نمک در پروفیل خاک استفاده شده است. آزمایش­های مزرعه­ای در قالب طرح بلوک­های کامل تصادفی با 4 تیمار و در 5 تکرار در مزرعه پردیس دانشگاه زابل انجام گرفت. تیمارها  شامل 10 نوبت آبشویی با مقدار 100 میلی متر آب آبیاری در هر نوبت و با فواصل زمانی 3 روزه (t1)، 7 نوبت آبشویی با مقدار 150 میلی متر آب و با فواصل زمانی 4 روزه (t2)، 5 نوبت آبشو...

2011
P. Skyttä

New U-Th-Pb zircon data (SIMS) from three intrusive phases of the Palaeoproterozoic Viterliden intrusion in the western Skellefte District, central Fennoscandian Shield, dates igneous emplacement in a narrow time interval at about 1.89 Ga. A locally occurring quartz-plagioclase porphyritic tonalite, here dated at 1889± 3 Ma, is considered the youngest of the intrusive units, based on the new ag...

Journal: :Advances in Space Research 2022

An important goal of the Surface Water and Ocean Topography (SWOT) mission is to provide river width, height, slope estimate global discharges. To appraise feasibility SWOT data over India, present study utilizes simulator from Centre National D’Etudes Spatiales (CNES) generate a long time-series (three years) observations Mahanadi River basin in India. Two independent sources geometry are used...

Journal: :مهندسی برق مدرس 0
pedram hajipour 1phd student, department of communication, college of electrical engineering, yadegar-e-imam khomeini (rah) shahr-e-rey branch, islamic azad university, tehran, iran, ali shahzadi assistant professor, department of communication, college of electrical engineering, yadegar-e-imam khomeini (rah) shahr-e-rey branch, islamic azad university, tehran, iran,

in this paper, an interference management for multi-beam satellite network to enhance spectral efficiency is studied. first, a two-satellite for future generation satellite network using cognitive radio technology is provided.this network is composed of a secondary satellite and aprimary satellite where the primary satellite system does not suffer from severe destructive interferences coming fr...

This paper presents the design and simulation of a typical Ka band satellite beacon receiver for propagation experimentation. Using satellite beacon signal as a reference signal in satellite wave propagation study, is one of the most important methods. Satellite beacons are frequently available for pointing large antennas, but such signals can be used for measuring the effect of natural phenome...

Journal: :Science 2014
D Laroche G Gervais M P Lilly J L Reno

One-dimensional (1D) interacting electronic systems exhibit distinct properties when compared to their counterparts in higher dimensions. We report Coulomb drag measurements between vertically integrated quantum wires separated by a barrier only 15 nanometers wide. The temperature dependence of the drag resistance is measured in the true 1D regime where both wires have less than one 1D subband ...

2014
Xueying Zhao Yuanyuan Zhang Michelle Leander Lingyun Li Guoshen Wang Nerimiah Emmett

Alpha(1D)-adrenergic receptor (α(1D)-AR) plays important roles in regulating physiological and pathological responses mediated by catecholamines, particularly in the cardiovascular and urinary systems. The present study was designed to investigate the expression profile of α(1D)-AR in the diabetic kidneys and its modulation by activation of peroxisome proliferator-activated receptors (PPARs). 1...

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