نتایج جستجو برای: stability lobe

تعداد نتایج: 357095  

2012
Christopher Tyler Tony Schmitz

INTRODUCTION The analytical stability lobe diagram offers a predictive capability for selecting stable chip width-spindle speed combinations in machining operations [1-4]. However, the increase in allowable chip width provided at spindle speeds near integer fractions of the system’s dominant natural frequency is diminished substantially at low spindle speeds where the stability lobes are closel...

Journal: :مجله علوم اعصاب شفای خاتم 0
sarah banakermani student research committee, faculty of medicine, mashhad university of medical sciences, mashhad, iran mohadese hasanzadeh kahani student research committee, faculty of medicine, mashhad university of medical sciences, mashhad, iran

epilepsy is the third most common chronic brain disorder which is characterized by an enduring predisposition to generate seizures. mesial temporal lobe epilepsy (mtle) is the most common type of refractory epilepsy. increasing evidence indicates that neuroinflammation plays a critical role in the pathogenesis of mtle. hundreds of micro-rnas have been found to be abnormally expressed in epilept...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

Journal: :the modares journal of electrical engineering 2011
bijan abbasi arand vahid ansari

antenna structures with low side lobe levels are normally the main goal during antenna design. in this paper, a new method for reduction of radiation pattern side lobe level in phased array antenna with uniform and non-uniform weighting is presented. in this method, by changing the array elements weight or adding several elements, such as slc technique, the pattern with low side lobe level can ...

Journal: :تحقیقات علوم رفتاری 0
ماهگل توکلی حمید طاهر نشاط دوست حسین مولوی مجید برکتین رضا کرمی نوری جعفر مهوری

abstract aim and background: evaluation of cognition is fundamental for every comprehensive epilepsy program. we sought to conduct this study to assess memory state of patients with refractory temporal lobe epilepsy before decision for epilepsy surgery. method and materials: in a case-control study, 20 patients with right temporal lobe epilepsy and 20 patients with left temporal lobe epilepsy w...

Journal: :iranian journal of veterinary research 2007
m. tadjalli h. r. moslemy

the ramifications of the portal vein in the liver of horses were studied by using corrosion casting and gross dissection. the portal vein in the horse supplies the hepatic lobes by six major branches. the right lobe is supplied by three main branches, namely the dorsal diaphragmatic, the right caudodorsal and the right intermediate branches. the left branch supplies the left lateral and medial ...

Journal: :مجله علوم اعصاب شفای خاتم 0
hossein jafari cellular and molecular research center, iran university of medical sciences, tehran, iran. ali yousefnejad cellular and molecular research center, iran university of medical sciences, tehran, iran. soraya mehrabi cellular and molecular research center, iran university of medical sciences, tehran, iran. mahmood barati cellular and molecular research center, iran university of medical sciences, tehran, iran. roozbeh farhoodi cellular and molecular research center, iran university of medical sciences, tehran, iran. fereshteh golab cellular and molecular research center, iran university of medical sciences, tehran, iran.

in this research, we have computationally investigated a mechanism for antiepileptic drugs (aed) and proposed bumetanide as a possible temporal lobe epilepsy (tle) treatment. experimentally it is difficult and devastating to determine the ionic mechanisms of depolarizing currents. it is obvious that chlorine and potassium transients are challenging to isolate pharmacologically and much γ-aminob...

Journal: :acta medica iranica 0
majid nejati department of anatomical sciences research center, kashan univercity of medical sciences, kashan, iran. vahid nejati department of cognitive science, shahid beheshti university, tehran, iran.

chess is considered as a cognitive game because of severe engagement of the mental resources during playing. the purpose of this study is evaluation of frontal lobe function of chess players with matched non-players. wisconsin card sorting test (wcst) data showed no difference between the player and non-player groups in preservation error and completed categories but surprisingly showed signifi...

Journal: :iranian journal of radiology 0
hasan aydin mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] nilay aydin oktay mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] volkan kizilgoz mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected]; mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] elif altin altin mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] idil gunes tatar mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] baki hekimoglu vascular interventional department, s.b. ankara diskapi yildirim beyazit education and research hospital, turkey

background epilepsy, a well-known mostly idiopathic neurologic disorder, has to be correctly diagnosed and properly treated. up to now, several diagnostic approaches have been processed to determine the epileptic focus. objectives the aim of this study was to discover whether proton-mr-spectroscopic imaging (mrsi) aids in the diagnosis of temporal lobe epilepsy in conjunction with classical ele...

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