نتایج جستجو برای: targets
تعداد نتایج: 159172 فیلتر نتایج به سال:
Background: Solid targets that consist of powder and electrodeposited targets are used commonly to produce radionuclides by accelerators. Since silver is easily electrodeposited in cyanide baths and has a very excellent thermal conductivity, the electrodeposited target is preferable to produce 109Cd. To avoid cracking or peeling of the target during bombardment, it should have a level surface a...
at first, ground-based circular strip-map synthetic aperture radar (gb-csmsar) and its capabilities is introduced and the received signal model, 2-d frequency spectrum and the azimuth and range resolutions are derived and compared with the linear motion strip-map sar resolutions. because of the stability of the path and speed of antenna in gb-csmsar a frequency domain imaging algorithm is sugge...
This study uses the MRT (mass rapid transit system) Banqiao Station as an example to explore residents’ satisfaction toward transit-oriented development (TOD) living environment characteristics around the Banqiao MRT station. The study uses descriptive statistics, reliability analysis, the factor analysis method and multiple regression analysis to verify the data, and one should expect the stud...
Kurzfassung. Im Beitrag werden Verfahren zur automatischen Detektion des Kerns der Arteriovenösen Malformation (AVM) sowie der zuleitenden (Feeder), ableitenden (Drainagevenen) und ” en passge“ Blutgefäße präsentiert. Als Eingabe hierfür dienen hochaufgelöste 3Dsowie zeitlich-räumliche 4D-MRT-Bildsequenzen. Durch eine kombinierte Analyse der Intensität, der Geschwindigkeit und des relativen Ein...
It is more likely that the monetary policy in Iran is discretionary and not based on a rule or a target. Besides, what is clear is that there have been explicit targets for inflation and economic growth in all five-year development plans (except the fifth plan). However, the question is that do policy makers observe the targets of development plans? Using an adjusted New Keynesian DSGE model ...
In this paper by analyzing the penetration mechanics of the segmented rods into semi-infinite ceramic targets, a mathematical model is provided to predict segmented rod projectiles penetration into semi-infinite ceramic targets. In analysis three factors of segments length, segments distance and number of segments are considered. Results suggest that the most important factor in penetration dep...
Analysis of penetration in pre-drilled and damaged concrete targets is the main part of anti-structure tandem warhead researches. In this paper the penetration process of the KE projectiles is investigated in pre-drilled and damaged concrete targets by analytical and numerical method. In this research, it has been tried to modify the teland model for achieving an accurate and efficient analytic...
recently many studies have been done on different issues of using multiple antennas at transmit and receive sides of a radar system in a mimo (multiple input multiple output) configuration. in addition, for the electronic warfare‟s purposes, the utilization of available signals of the environment to detect the targets has gained considerable attention in recent years. such passive radars use th...
Nowadays, due to quality development of satellite images, automatic target detection on these images has been attracted many researchers' attention. Remote-sensing images follow various geospatial targets; these targets are generally man-made and have a distinctive structure from their surrounding areas. Different methods have been developed for automatic target detection. In most of these met...
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