نتایج جستجو برای: orbital frame

تعداد نتایج: 140863  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ریاضی و کامپیوتر 1390

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...

2009
D. Shafir Y. Mairesse D. M. Villeneuve P. B. Corkum

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...

Journal: :بینا 0
حسین سالور h salour تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم محمد اسحاقی m eshaghi تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم بهروز قدیری b ghadiri تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم

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...

Journal: :iranian journal of radiology 0
payam azadeh department of radiation oncology, shahid beheshti university of medical sciences, tehran, iran babak hassanzadeh rad veterinary medicine department, karaj branch, islamic azad university, karaj, iran ali yaghobi joybari department of radiation oncology, shahid beheshti university of medical sciences, tehran, iran; department of radiation oncology, shahid beheshti university of medical sciences, tehran, iran. tel/fax: +98-2122859943

Journal: :archives of clinical infectious diseases 0
bahaadin siroos department of neurology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran zahra sharify bahram department of neurology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran omid ghaemi department of radiology, imam khomeini hospital, tehran university of medical sciences tehran, ir iran seyyed mahdi zia ziabari department of emergency medicine, poursina hospital, guilan university of medical sciences, rasht, ir iran mojtaba hedayat yaghoobi department of infectious disease, besat hospital, hamadan university of medical sciences, hamadan, ir iran; department of infectious disease, besat hospital, hamadan university of medical sciences, hamadan, ir iran. tel/fax: +98-8132640051

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...

Journal: :novelty in biomedicine 0
zahra arab-mazar infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran shervin shokouhi infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran amirhossein moghtader mojhdehi infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran

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...

2002
Yaron Caspi Michal Irani

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...

Journal: :sahand communications in mathematical analysis 2015
asghar rahimi

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.

Journal: :journal of dentistry, tehran university of medical sciences 0
shima aalaei abolhassan abolhassani fatemeh nematollahi elaheh beyabanaki amir ali mangoli

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...

H. Aghaie Somayyeh Ghasemlou

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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