نتایج جستجو برای: series

تعداد نتایج: 350962  

A. Mousavizadeh, S. Rabani, S.M. Rabani,

Aims: Renal vascular clamping during partial nephrectomy can lead to renal ischemia and kidney damage due to reperfusion injuries, but a surgical technique without any ischemia can eliminate such unwanted effects on kidney function. The present study aimed to demonstrate the feasibility of partial nephrectomy in conditions where the renal artery is ready to be clamped. Patient Information: In ...

Journal: :معماری و شهرسازی آرمان شهر 0
s. yahya islami assistant professor of architecture, school of architecture, college of fine arts, university of tehran, tehran, iran. mina tafakkor m.a. in interior architecture, school of architecture, college of fine arts, university of tehran, tehran, iran. forough rezvani zadeh m.a. in interior architecture, school of architecture, college of fine arts, university of tehran, tehran, iran.

today, mass media act like a magic mirror, not only reflecting the reality of societies, but also projecting a variety of images onto people’s thoughts. because of this great ability to produce, reproduce and disperse images, mass media have acquired considerable influence on people’s lives. among the different media, the television in particular has become an inseparable part of most iranian h...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
mostafa moattari master of science, mechanical engineering department, islamic azad university, hamadan, iran. farzan barati assistant professor, department of mechanical engineering, islamic azad university, hamadan, iran.

in the present study, vibration of cylindrical laminates with different layers and angles were studied. in order to actuate and polarize in radial direction, a piezoelectric layer was located at outer surface of composite shell. laminates were assumed long enough so that plane strain state analysis in 2d can be used properly. in order to satisfy the boundary conditions, variables in terms of fo...

Journal: :نظریه تقریب و کاربرد های آن 0
h. rouhparvar department of mathematics, college of technical and engineering, saveh branch, islamic azad university, saveh, iran

in this paper, the reduced di erential transform method is investigated fora nonlinear partial di erential equation modeling nematic liquid crystals, itis called the hunter-saxton equation. the main advantage of this methodis that it can be applied directly to nonlinear di erential equations withoutrequiring linearization, discretization, or perturbation. it is a semi analytical-numerical metho...

Journal: :iranian journal of public health 0
piotr nowicki dept. of inorganic and analytical chemistry, poznan university of medical sciences , poznan, poland. jolanta klos dept. of inorganic and analytical chemistry, poznan university of medical sciences , poznan, poland. zenon j kokot dept. of inorganic and analytical chemistry, poznan university of medical sciences , poznan, poland.

the aim of this study was to determine the monthly dtr mass load of amphetamine-type compounds in poland as well as an investigation of cyclical behaviour by using time series analysis and especially trends analysis.amphetamine, methamphetamine and mdma (ecstasy) were detected in wastewater samples collected from the main wastewater treatment plant in the city of poznan using liquid chromatogra...

Journal: :iranian journal of oil & gas science and technology 2013
fatemeh deregeh milad karimian hossein nezmabadi-pour

the late detection of the kick (the entrance of underground fluids into oil wells) leads to oil wellblowouts. it causes human life loss and imposes a great deal of expenses on the petroleum industry.this paper presents the application of adaptive neuro-fuzzy inference system designed for an earlierkick detection using measurable drilling parameters. in order to generate the initial fuzzy infere...

Journal: :iranian journal of science and technology (sciences) 2013
f. a. abd el-salam

using the riemann-liouville fractional differintegral operator, the lie theory is reformulated. the fractional poisson bracket over the fractional phase space as 3n state vector is defined to be the fractional lie derivative. its properties are outlined and proved. a theorem for the canonicity of the transformation using the exponential operator is proved. the conservation of its generator is p...

Journal: :journal of industrial engineering, international 2011
s sardar donighi s khanmohammadi

fuzzy set based methods have been proved to be effective in handling many types of uncertainties in different fields, including reliability engineering. this paper presents a new approach on fuzzy reliability, based on the use of beta type distribution as membership function. considering experts' ideas and by asking operators linguistic variables, a rule base is designed to determine the level ...

The renewable energy resources such as wind power have recently attracted more researchers’ attention. It is mainly due to the aggressive energy consumption, high pollution and cost of fossil fuels. In this era, the future fluctuations of these time series should be predicted to increase the reliability of the power network. In this paper, the dynamic characteristics and short-term predictabili...

Let R be a ring, M a right R-module and (S,≤) a strictly ordered monoid. In this paper we will show that if (S,≤) is a strictly ordered monoid satisfying the condition that 0 ≤ s for all s ∈ S, then the module [[MS,≤]] of generalized power series is a uniserial right [[RS,≤]] ]]-module if and only if M is a simple right R-module and S is a chain monoid.

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