نتایج جستجو برای: orbital frame
تعداد نتایج: 140863 فیلتر نتایج به سال:
قاب های مخلوط تنگ یک مفهوم نوظهور ازنظریه ی قاب هاهستند.این قاب هادر فرآیندپخش و مخابرات کاربردهای زیادی دارند.بااینحالدرموردوجود این قابهااطلاعات کمی وجوددارد.در این پایان نامه به طور کامل مسله ی وجود چنین قاب هایی رادر حالت خاصی که در آن فضای اصلی با بعد متناهی است و زیر فضاهایقاب مخلوط بعد مساوی دارند را به طور کامل حل می کنیم.بدین معنا که شرایطی که تحت آن یک مجموعه از ماتریس های تصویر متعام...
Strong-field light–matter interactions can encode the spatial properties of the electronic wavefunctions that contribute to the process1–4. In particular, the broadband harmonic spectra, measured for a series of molecular alignments, can be used to create a tomographic reconstruction of molecular orbitals5. Here, we present an extension of the tomography approach to systems that cannot be natur...
purpose: to report the results of a wrapping technique for hydroxyapatite orbital implants by using mersilen mesh. methods: this study is prospective interventional case series conducted on records of 55 consecutive patients who received a mersilen mesh-wrapped ha orbital implant after enucleation or as a secondary procedure. we recorded results and potiential problem before and after pegging d...
introduction rhino-orbito-cerebral mucormycosis is a progressive angioinvasive fungal disorder which almost always complicates immunocompromised patients. case presentation we described a case of fulminant rhino-orbito-cerebral mucormycosis in a 65-year-old woman, who presented with progressive neurological deficits due to involvement of orbital apex and the central nervous system by local inva...
background: streptococcus pneumoniae (s. pneumoniae) is a gram-positive pathogen bacteria which causes a variety of diseases, including otitis media, bacteremia, and meningitis. cases report : a 19-year-old man with paroxysm was admitted to emergency department of hospital. he was diagnosed with s. pneumoniae meningitis on the basis of an analysis of the cerebrospinal fluid and blood culture. c...
This paper studies the problem of sequence-to-sequence alignment, namely establishing correspondences in time and in space between two di erent video sequences of the same dynamic scene. The sequences are recorded by uncalibrated video cameras, which are either stationary or jointly moving, with xed (but unknown) internal parameters and relative inter-camera external parameters. Temporal variat...
motivating the perturbations of frames in hilbert and banach spaces, in this paper we introduce the invariance of fr'echet frames under perturbation. also we show that for any fr'echet spaces, there is a fr'echet frame and any element in these spaces has a series expansion.
implant-supported craniofacial prostheses are made to restore defective areas in the face and cranium. this clinical report describes a technique for fabrication of an orbital prosthesis with three adjacent implants in the left lateral orbital rim of a 60-year-old woman. selection of appropriate attachment system (individual magnetic abutments versus bar-clip attachment) for implant-supported o...
The Density of State and the Natural Bond Orbital calculations were carried out to study theoxidation of CO on Au14 nano cluster through two different mechanisms and determining the bestmechanism for the reaction. Chemisorption of O2 and CO on the nano cluster led to change in energy,density of state and its thermodynamic properties. We calculated the energy band gap between thehighest occupied...
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