نتایج جستجو برای: partial differentialequation

تعداد نتایج: 230175  

Journal: :نظریه تقریب و کاربرد های آن 0
khalid aboodh department of mathematics omdurman islamic university (http: //www. fst. oiu. edu. sd) sudan

here, a new method called aboodh transform homotopy perturbation method(athpm) is used to solve nonlinear partial di erential equations, we presenta reliable combination of homotopy perturbation method and aboodh transformto investigate some nonlinear partial di erential equations. the nonlinearterms can be handled by the use of homotopy perturbation method. the resultsshow the eciency of this...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. sadeghi associate professor, department of restorative dentistry, school of dentistry, rafsanjan university

objective: this in vitro study evaluated the fracture strength and bending amount of twotypes of fiber reinforced composite (frc) and cast metal frameworks used for fabrication of inlay fixed partial dentures (ifpds). materials and methods: seventy-two extracted first maxillary premolars and molars (36 each) were embedded in acrylic resin to represent a missing of second maxillary premolar. frc...

Journal: :iranian journal of neurology 0
abbas tafakhori iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran. vajiheh aghamollaii iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran amir hossein modabbernia iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran majid ghaffarpour iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran hossein ali ghelichnia omrani iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran mohammad hossein harirchian iranian center of neurological research, tehran university of medical sciences, neurology department, imam khomeini hospital, tehran, iran

background: we evaluated the diagnostic value of electroencephalography (eeg), video-eeg monitoring (vem) and magnetic resonance imaging (mri) of the brain with epilepsy protocol in patients with complex partial epilepsy. methods: forty-two consecutive patients underwent complete neurological examination, eeg, and mri with a modified epilepsy protocol. a subset of these patients (n = 29) also u...

Journal: :journal of linear and topological algebra (jlta) 0
a fallahzadeh department of mathematics, islamic azad university, central tehran branch, iran m. a fariborzi araghi department of mathematics, islamic azad university, central tehran branch, iran v fallahzadeh department of mathematics, islamic azad university, arac branch, iran

one of the ecient and powerful schemes to solve linear and nonlinear equationsis homotopy analysis method (ham). in this work, we obtain the approximate solution ofa system of partial di erential equations (pdes) by means of ham. for this purpose, wedevelop the concept of ham for a system of pdes as a matrix form. then, we prove theconvergence theorem and apply the proposed method to nd the a...

Journal: :galen medical journal 0
mohammad amin haddad operative department, school of dentistry, yazd university of medical sciences, yazd mohammad ebrahim moosavi sajad operative department, school of dentistry, yazd university of medical sciences, yazd, iran shima aalai prosthodontics department, school of dentistry, qazvin university of medical sciences, qazvin , iran

background:  the metal  framework  of a removable partial denture includes various parts and metal components that supply strength, retention, stability ,  and support of partial denture.  the purpose of this study is assessing the quality of the frameworks made in  the  department of prosthodontics, qazvin school of  dentistry , regarding  their causes of malfunction,  retention, stability ,  ...

Journal: :the journal of tehran university heart center 0
mohammadali boroumand tehran heart center, tehran university of medical sciences, iran. hamidreza goodarzynejad tehran heart center, tehran university of medical sciences, iran.

clinicians should be aware of new developments to familiarize themselves with pharmacokinetic and pharmacodynamic characteristics of new anticoagulant agents to appropriately and safely use them. for the moment, cardiologists and other clinicians also require to master currently available drugs, realizing the mechanism of action, side effects, and laboratory monitoring to measure their anticoag...

Journal: :international journal of industrial mathematics 2014
b. bagheri r. ezzati

‎this paper presents an application of partial differential equations(pdes) for the segmentation of abdominal and thoracic aortic in cta datasets. an important challenge in reliably detecting aortic is the need to overcome problems associated with intensity inhomogeneities. level sets are part of an important class of methods that utilize partial differential equations (pdes) and have been exte...

Journal: :iranian journal of management studies 2015
mohammad reza mehregan seyed hamid hashemi mahdi nikneshan

during the past decade, the world economic forum has published its annual reports in which the global competitiveness index is included. this paper aims to investigate the key factors for achieving an innovation-driven economy. in this paper, we used partial canonical correlation analysis (pcca) to examine the relationships between key pillars in “efficiency enhancers” and “business sophisticat...

Journal: :bulletin of the iranian mathematical society 2011
j. almeida

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