نتایج جستجو برای: harmonic conjugate

تعداد نتایج: 88996  

With respect to importance of the conjugate gradient methods for large-scale optimization, in this study a descent three-term conjugate gradient method is proposed based on an extended modified secant condition. In the proposed method, objective function values are used in addition to the gradient information. Also, it is established that the method is globally convergent without convexity assu...

In this paper, an efficient conjugate gradient method for unconstrained optimization is introduced. Parameters of the method are obtained by solving an optimization problem, and using a variant of the modified secant condition. The new conjugate gradient parameter benefits from function information as well as gradient information in each iteration. The proposed method has global convergence und...

1995
M. Sanjay Kumar Avinash Khare

We show that for the strictly isospectral Hamiltonians, the corresponding coherent states are related by a unitary transformation. As an illustration, we discuss, the example of strictly isospectral one-dimensional harmonic oscillator Hamiltonians and the associated coherent states. PACS number(s) : 03.65.Fd, 02.30.+b Electronic Address : [email protected] Electronic Address : [email protected]...

Journal: :journal of ai and data mining 2015
m. aghaei a. dastfan

the harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. this paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. the objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...

Shu-Ping Wan Yong-Jun Zhu

As an special intuitionistic fuzzy set defined on the real number set, triangular intuitionistic fuzzy number (TIFN) is a fundamental tool for quantifying an ill-known quantity. In order to model the decision maker's overall preference with mandatory requirements, it is necessary to develop some Bonferroni harmonic mean operators for TIFNs which can be used to effectively intergrate the informa...

Journal: :bulletin of the iranian mathematical society 2014
saman babaie-kafaki

‎based on an eigenvalue analysis‎, ‎a new proof for the sufficient‎ ‎descent property of the modified polak-ribière-polyak conjugate‎ ‎gradient method proposed by yu et al‎. ‎is presented‎.

Journal: :journal of medical signals and sensors 0
ahmad shanei maryam afshin masoud moslehi sedighe rastaghi

to make an accurate estimation of the uptake of radioactivity in an organ using the conjugate view method, corrections of physical factors, such as background activity, scatter, and attenuation are needed. the aim of this study was to evaluate the accuracy of four different methods for background correction in activity quantification of the heart in myocardial perfusion scans. the organ activit...

A Ghorbani , H Hamzehzarghani , K Izadpanah , Sh Ghorbani ,

ELISA data is usually handled in the MS Excel worksheets through different methods and different formulas. Accurate and precise calculations of the data is time consuming and tedious. ELISA Analyzer was developed with a user friendly interface to streamline titration and analysis of the data obtained from ELISA and improve rapid and lucid presentation of the results. The software can also hel...

Journal: :iranian journal of microbiology 0
shadi rokhsartalab-azar young researchers and elite club, urmia branch, islamic azad university, urmia, ir iran. reza shapouri department of microbiology, zanjan branch, islamic azad university, zanjan, ir iran. mehdi rahnema biologic research center, zanjan branch, islamic azad university, zanjan, ir iran. faezeh najafzadeh young researchers club, bonab branch, islamic azad university, bonab, ir iran. anvarsadat kianmehr department of medical iotechnology, school of advanced medical sciences, tabriz university of medical sciences, tabriz, ir iran.

background and objective: escherichia coli o157:h7, an emerging pathogen, causes severe enteritis and the extraintestinal complication of hemolytic-uremic syndrome. the goal of this study was to evaluate the conjugate of e. coli o157: h7 lipopolysaccharide (lps) with diphtheria toxoid (dt) as a candidate vaccine in mice model. material and methods: lps from e. coli o157:h7 was extracted by hot ...

The efficacy of methotrexate (MTX) as an antimetabolite chemotherapeutic agent highly depends on its blood circulation half-life. In our previous study, different conjugates of MTX (MTX-PEG) were synthesized, their physicochemical properties were investigated and MTX-PEG5000 was finally selected as optimum drug-conjugate for further investigations. In the current work, first the stability of MT...

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