نتایج جستجو برای: prohibited operating zone
تعداد نتایج: 271696 فیلتر نتایج به سال:
رسوبات کرتاسه بالایی در پهنه ایران زمین در حوضه های متفاوت، با توجه به شرایط حاکم در زمان تشکیل، ظاهراً یکنواخت نبوده است. در نتیجه، واحدهای سنگ چینه ای رسوبات کرتاسه بالایی ایران، به استثناء زاگرس و کپه داغ نامگذاری نشده یا دارای نام های محلی هستند. جهت مطالعه رسوبات کرتاسه بالایی در البرز شمالی برشی در حوالی منطقه پل زغال انتخاب گردید. برش انتخاب شده، در 21 کیلومتری جنوب چالوس به صورت ترانشه آ...
The impact remnant outflow boundary over the Upper Midwest from early morning convection on maximized afternoon and evening CAPE values is examined through the use of Geostationary Operational Environmental Satellite (GOES) data and available surface observations. Satellite imagery and surface analyses conveyed that a residuum deformation structure provided the focus for further convective deve...
‘Paired’ closely-spaced parallel approaches may enable closely-spaced runways to operate at nearvisual capacity in all weather conditions. This concept requires each trail aircraft in the pair to fly in a ‘safe zone’ in front of the lead aircraft’s wake vortex and in back of the lead aircraft’s potential blunder trajectories. This paper examines the position and length of this safe zone to unde...
In this paper, the performance of two low power phase frequency detectors is compared. A modified D-FF based PFD reduces the power consumption of traditional PFD to 4.732uW at 40MHz clock frequency and dead zone to 40ps.It is suitable for low power applications. A Falling Edge PFD uses only 12 transistors. This PFD operates up to 1GHz at 1.8V supply voltage. It consumes only 5.5uW when operatin...
Evolutionary expansion and complexification of the primate cerebral cortex are largely linked to the emergence of the outer subventricular zone (OSVZ), a uniquely structured germinal zone that generates the expanded primate supragranular layers. The primate OSVZ departs from rodent germinal zones in that it includes a higher diversity of precursor types, inter-related in bidirectional non-hiera...
Objectives: Considering the increasing prevalence of depression in modern societies and the positive effects of omega-3 polyunsaturated fatty acids on depression, this study aims to investigate the omega-3 and omega-6 content of various foodstuffs, prescribed or prohibited by Iranian Traditional Medicine (ITM). Materials and Methods: Firstly, reliable sources of Iranian Traditional Medicine wer...
In a cardiac procedure room, ventilated by a ventilation and air-conditioning system with turbulent mixed airflow, a protection zone in the operating area could be defined through visualization of airflows. Within this protection zone, no turbulence was detectable in the room air.Under the given conditions, disinfection of all surfaces including all furniture and equipment after the last operat...
In recent years, regional habitat quality (HQ) has significantly degenerated, mainly attributed to human activities. Evaluating the spatio-temporal effects of activities on HQ is crucial for maintaining ecosystem and conservation landscapes. this paper, taking Guiyang city as a case study, patterns footprint (HF) in 2000, 2010 2020 were respectively calculated by model index (HFI). Then, bivari...
BACKGROUND Acetabular cup placement in total hip arthroplasty (THA) has been recognized as an important factor in operative success, and accurate cup placement has been the impetus for novel medical technologies. METHODS This article examines the cup placement in 955 THAs using a freehand Direct Anterior Approach on a standard operating table. Acetabular anteversion and inclination were deter...
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