نتایج جستجو برای: nerve deformation

تعداد نتایج: 234102  

Journal: :Investigative ophthalmology & visual science 2012
Ian A Sigal Jonathan L Grimm

PURPOSE The biomechanical effects of IOP on the optic nerve head (ONH) are believed to play a role in glaucomatous neuropathy. There is, however, no consensus on which effects of IOP should be prioritized for investigation. Our goal was to identify a small set of variables capturing the majority of the effects of acute IOP on the ONH. METHODS We produced 4646 finite element models of the huma...

1998
Daniel Rueckert Carmel Hayes Colin Studholme Paul E. Summers Martin O. Leach David J. Hawkes

We present a new approach for the non-rigid registration of contrastenhanced breast MRI using normalised mutual information. A hierarchical transformation model of the motion of the breast has been developed: The global motion of the breast is modelled using affine transformation models while the local motion of the breast is modelled using spline-based free-form deformation (FFD) models. The a...

2009
Xiao Bo Lu William Thorpe Kylie Foster Peter Hunter

The goal of this study is to develop a customised computer model that can accurately represent the motion of vocal articulators during vowels and consonants. Models of the articulators were constructed as Finite Element (FE) meshes based on digitised high-resolution MRI (Magnetic Resonance Imaging) scans obtained during quiet breathing. Articulatory kinematics during speaking were obtained by E...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

2015
Kamaljit Singh Sukhvinder Singh Bamber Aman Kaushik

This paper investigate the impact of packet size on the performance of 802.15.4 for Wireless Sensor Network based on various packet size scenario like packet size 300, 600 and 900.The comparative results have been reported for the performance metrics like Battery energy consumed, Traffic sink end to end delay and Traffic received. Packet size optimization is an important issue in energy constra...

2010
Wendy Hui Wang Ruilin Liu

Stevens Institute of Technology Hoboken, NJ, USA {hwang,[email protected]} Abstract. We study the privacy threat by publishing data that contains full functional dependencies (FFDs). We show that the cross-attribute correlations by FFDs can bring potential vulnerability to privacy. Unfortunately, none of the existing anonymization principles can effectively prevent against the FFD-based priv...

2007
Morihiko Saito MORIHIKO SAITO

exp(2 i( p 1 i ) are the eigenvalues of the Milnor monodromy and their integral part is determined by the Hodge ltration of the mixed Hodge structure. This notion was rst introduced by Steenbrink [11]. By [14] the exponents are constant under -constant deformation of f . In particular, they depend only on f 1 (0). They express the vanishing order (up to the shift by one) of the period integrals...

Journal: :iranian journal of veterinary research 2014
gh. h. farjah t. peirouvi b. heshmatian m. yasami m. a. dolatkhah

gonadotropin-releasing hormone (gnrh) has neuromodulatory roles in central and peripheral nervous systems. the purpose of this study is to evaluate the effect of gnrh analog (buserelin) on peripheral nerve regeneration. forty adult male rats were divided into buserelin-treated, normal saline, sham surgery, and castrated + buserelin groups. the left sciatic nerve was crushed by a fine forceps an...

Journal: :anesthesiology and pain medicine 0
mohammad taghi beigmohammadi department of anesthesiology and critical care, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran farhad tavakoli department of anesthesiology and critical care, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran saeid safari pain research center, iran university of medical sciences (iums), tehran, iran hamid reza amiri department of anesthesiology and critical care, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran; department of anesthesiology and critical care, imam khomeini hospital complex, tehran university of medical sciences, tehran, iran. tel: +98-2166509059, fax: +98-2166515758

case presentation in this report, ultrasound-guided sciatic nerve block was performed in a 25-year-old patient with tetanus to progress his respiratory drive which was decreased due to high dose sedative administration. this procedure accelerates the weaning process and extubation. introduction muscle rigidity and generalized spasm can cause severe pain in patients with tetanus. administration ...

Journal: :iranian biomedical journal 0
مرتضی بهنام رسولی morteza behnam-rasouli محمدرضا نیک روش mohammadreza nikravesh ناصر مهدوی شهری nasser mahdavi-shahri علیرضا فاضل alireza fazel

to evaluate the effects of local administration of the fetal brain extract (fbe) on the crushed peripheral nerve, 15 male wistar rats were used. the right sciatic nerve of 10 rats was locally underwent the tense compression for 30 seconds and then randomly divided into experimental and control (sham) groups. the remained rats were considered as intact animals. treatment was commenced weekly, by...

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