نتایج جستجو برای: computational

تعداد نتایج: 265661  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

implicit and unobserved errors and vulnerabilities issues usually arise in cryptographic protocols and especially in authentication protocols. this may enable an attacker to make serious damages to the desired system, such as having the access to or changing secret documents, interfering in bank transactions, having access to users’ accounts, or may be having the control all over the syste...

Journal: :iranian journal of public health 0
h mohabatkar

fibrillin is a large glycoprotein synthesized in the tissues involved in marfan syndrome, and known to be involved in tissue elasticity. the syndrome is corresponded to fbn1 gene and is characterized by cardiovascular, ocular, and skeletal abnormalities. n-terminus of fibrillin 1 binds to microfibril-associated glycoprotein 1 (magp-1) in a calcium-dependent manner. in this study, the amino acid...

Journal: :journal of medical signals and sensors 0
farzaneh shayegh rasoul amirfattahi saeed sadri karim ansari-asl

in recent decades, seizure prediction caused a lot of research in both signal processing and neuroscience field. the researches tried to enhance the conventional seizure prediction algorithms such that rate of the false alarms be appropriately small so that seizures can be predicted according to clinical standards. up to now none of the proposed algorithms have been sufficiently adequate. in th...

Journal: :iranian journal of oil & gas science and technology 2014
seyyed mohsen hosseini khalil shahbazi mohammad reza khosravi nikou

among the all parameters affecting the performance of a downhole de-oiling hydrocyclone, the investigation of internal flow field deserves more attempts especially in the petroleum industry. in this study, the effects of inlet flow rate, inlet oil volume fraction, and oil droplet diameter on the separation efficiency and pressure drop ratio have been investigated along the hydrocyclone body. al...

Journal: :transactions on combinatorics 2013
s. saqaeeyan esmaeil mollaahmadi ali dehghan

the colorful paths and rainbow paths have been considered by severalauthors.a colorful directed path in a digraph $g$ is a directed path with $chi(g)$ vertices whose colors are different. a $v$-colorful directed path is such a directed path, starting from $v$. we prove that for a given $3$-regular triangle-free digraph $g$ determining whether there is a proper $chi(g)$-coloring of $g$such that ...

Journal: :nutrition and food sciences research 0
reza sharifanfar dept.of food technology engineering, college of abouraihan, university of tehran, pakdasht, iran hossein mirsaeedghazi department of agrotechnology, college of abouraihan, university of tehran, pakdasht, iran ali fadavi department of agrotechnology, college of abouraihan, university of tehran, pakdasht, iran mohammad hossein kianmehr dept.of food technology engineering, college of abouraihan, university of tehran, pakdasht, iran

background and objectives: pomegranate juice (pj) contains large particles that stick to evaporator walls causing off flavors in the concentrate due to burning. microfiltration is used to clarify pj. fouling is a limiting phenomenon that can prevent the industrialization of membrane clarification. changes in the geometry of the membrane module such as using baffles are useful to decrease this p...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2005
ramdane salhi

the main aim of this research is to determine optimal leaching conditions; eh, ph and complexing agent concentrations, for recovery of copper from hydroxide sludges such as those produced by electroplating shops, metal finishers, treatment of acid mine drainage, and industrial wastewater in general. this has been preceded by a theoretical approach and numerical and computer calculation. potenti...

Journal: :razavi international journal of medicine 0
mohamad reza kalani school of medicine, mashhad university of medical sciences, mashhad, ir iran; beckman institute for advanced science and technology, biophysics and computational biology center, university of illinois at urbana-champaign, urbana, united states emad tajkhorshid beckman institute for advanced science and technology, biophysics and computational biology center, university of illinois at urbana-champaign, urbana, united states; beckman institute for advanced science and technology, biophysics and computational biology center, university of illinois at urbana-champaign, urbana, united states. tel: +98-9153169648

advanced technologies in molecular biology and modern experimental biophysics heavily rely not only on the knowledge of structure of essential proteins but also on their structural dynamics. the function of these bimolecular systems and the pathways along which the biological phenomena take place can be determined based on the knowledge of the molecular structure and behavior. as such, the simp...

Journal: :journal of sciences, islamic republic of iran 2010
d rostami

in descriptive statistics, there are two computational algorithms for determining the variance s2, of a set of observations : algorithm 1: s2= - , algorithm 2: s2= , where . it is interesting to discuss, which of the above formulas is numerically more trustworthy in machine numbers sets. i this paper, based on total effect of rounding error, we prove that the second algorithm is better than ...

Journal: :journal of biomedical physics and engineering 0
e. hoseinian azghadi phd student of nuclear physics, physics department, school of sciences, ferdowsi university of mashhad, mashhad, iran l. rafat motavalli assistant professor of nuclear physics, physics department, school of sciences, ferdowsi university of mashhad, mashhad, iran h. miri hakimabad associate professor of nuclear physics, physics department, school of sciences, ferdowsi university of mashhad, mashhad, iran

annually, many people are irradiated for diagnostic and therapeutic purposes. assessment of radiation dose and its related risks to patients are important issues in radiation protection dosimetry. the complex mathematical calculations of the absorbed and effective doses are now done with computers. the calculations are performed with the help of anthropomorphic computational models of human bod...

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