نتایج جستجو برای: combination of gps heights with orthometric heights
تعداد نتایج: 22174852 فیلتر نتایج به سال:
Effects of d-doping on barriers effective heights and series resistance of highly doped n-type GaAs/AIAs/GaAs/AlAs/GaAs heterostructures, grown by molecular beam epitaxy (MBE) at 400?°C, have been studied. As it was expected, inclusion of an n+ d-doped layer at each hetero-interface has reduced the barriers heights and series resistance of the structure significantly, while p+ d-doped layers ha...
at recent year improvement towns of country are considered for reason much accumulation, increase price of field, decrease dimension family and security cheap dwelling, natural structure khorramabad, economical changes accompanied by natural improvement population and change family from spread to nuclear increased necessity to dwelling and finally consider to vertical improvement. the method th...
Orthometric height is the generally adopted type of worldwide and in geomatics community. Precise levelling has been method obtaining orthometric past for most country, so as Nepal. However, due to wide usage Global Navigation Satellite System (GNSS), alternative approach combining GNSS derived ellipsoidal with geoid undulation get height, used extensively. In Nepal, this technique was official...
the objective of this paper is to determine the drift demand hazard curves of steel moment-resisting frames with different number of stories in territory of tehran this is done through the combination of the results obtained from probabilistic seismic hazard analysis and the demand estimated through the best probabilistic seismic demand models. to select the best demand model, in this paper, a ...
the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...
abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
BACKGROUND Musculoskeletal injuries, such as neck and back pain, during a surgeon's career are common. However, studies on ergonomics are limited with regard to seated otolaryngologic procedures. Key elements of an ergonomic operating environment include the height of operating tables and surgical chairs. Surgeons benefit from proper support and positioning to prevent musculoskeletal injuries a...
Abstract The orthometric height has an essential role in a variety of civil engineering projects and it is defined as the length curved plumbline from point (on earth surface) to its intersection with geoid surface. Leveling process considered most accurate technique for obtaining these heights. However, regardless potentials, tedious, costly, time consuming. Recently many organizations researc...
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