مرور بر اساس عنوان

در حال نمایش موارد 133987 - 134006 از 605404

  • Z- Source Inverter Based On Sample Boost Optimized With Particle Swarm Optimization (PSO) Algorithm 

    Lak, A.؛ Hosseinnia, H.؛ Nazarpoor, D.؛ Hosseini, Hossein (Shahed University, 2016-07-01)
    In this paper optimal torque control (OTC) of stand-alone variable-speed small-scale wind turbine equipped with a permanent magnet synchronous generator and a switch- mode rectifier is presented. It is shown that with OTC ...

  • Z-Cognitive Map: An Integrated Cognitive Maps and Z-Numbers Approach under Cognitive Information 

    Izadi, Mostafa؛ Noorossana, Rassoul؛ Izadbakhsh, Hamidreza؛ Saati, Saber؛ Khalilzadeh, Mohammad (Islamic Azad University Shiraz Branch, 2020-09-01)
    Usually, in real-world engineering problems, there are different types of uncertainties about the studied variables, which can be due to the specific variables under investigation or interaction between them. Fuzzy cognitive ...

  • z-Ideals and zº-Ideals in the Factor Rings of C(X) 

    Aliabad, A. R.؛ Azarpanah, F.؛ Paimann, M. (Springer and the Iranian Mathematical Society (IMS), 2010-04-01)

  • Z-PLA STY FOR TREATMENT OF THE RESIDUAL CAVITY AFTER P ILONIDAL SINUS EXCISION 

    BEHDAD, A؛ HOSSEINPOOR, M (Tehran, Iran University of Medical Sciences, 2001-02-01)
    In order to evaluate the outcome and complications of Z plasty in pilonidal cyst repair, 90 patients with pilonidal cysts of the natal cleft were selected and repaired by Z-plasty in Al-Zahra hospital. The patients were ...

  • A Z-Source Network Integrated Buck-Boost PFC Rectifier 

    Monfard, Mohammad؛ Babaei, Mohammad؛ Sharifi, Saeed (University of Sistan and Baluchestan, 2019-10-01)
    This paper presents a wide range gain buck-boost type PFC rectifier based on the conventional buck-boost DC-DC converter. This novel rectifier is fed by a buck-type Z-source network at the DC side with the help of an ...

  • z-weak ideals and prime weak ideals 

    Estaji, Ali Akbar (Tehran, ACECR at Tarbiat Modares University, 2012-11-01)
    In this paper, we study a generalization of z-ideals in the ring C(X) of continuous real valued functions on a completely regular Hausdorff space X. The notion of a weak ideal and naturally a weak z-ideal and a prime weak ...

  • $z^circ$-filters and related ideals in $C(X)$ 

    Mohamadian, Rostam (Yazd University, 2015-11-01)
    In this article we introduce the concept of $z^circ$-filter on a topological space $X$. We study and investigate the behavior of $z^circ$-filters and compare them  with corresponding ideals, namely, $z^circ$-ideals of ...

  • $Z_k$-Magic Labeling of Some Families of Graphs 

    Jeyanthi, P.؛ Jeyadaisy, K. (University of Tehran, 2018-12-01)
    For any non-trivial abelian group A under addition a graph $G$ is said to be $A$-textit{magic}  if there exists a labeling $f:E(G) rightarrow A-{0}$ such that, the vertex labeling $f^+$  defined as $f^+(v) = sum f(uv)$ ...

  • z_R-Ideals and z^0_R-Ideals in Subrings of R^X 

    Rezaei Aliabad, A.؛ parsinia, M. (Tehran, ACECR at Tarbiat Modares University, 2019-04-01)
    pspan style=font-family:tahoma;span style=font-size:14px;Let X be a topological space and R be a subring of RsupstrongX/strong/sup. By determining some special topologies on X associated withbr the subring R, characterizations ...

  • The Zagreb Index of Bucket Recursive Trees 

    Kazemi, Ramin؛ Behtoei, Ali؛ Kohansal, Akram (University of Kashan, 2020-06-01)
    ‎Bucket recursive trees are an interesting and natural generalization of recursive trees‎. ‎In this model the nodes are buckets that can hold up to b>= 1 labels‎. ‎The (modified) Zagreb index of a graph is defined as the ...

  • Zagreb Indices and Coindices of Total Graph, Semi-Total Point Graph and Semi-Total Line Graph of Subdivision Graphs 

    Ramane, Harishchandra؛ Talwar, Saroya؛ Gutman, Ivan (University of Kashan, 2020-03-01)
    Expressions for the Zagreb indices and coindices of the total graph, semi-total point graph and of semi-total line graph of subdivision graphs in terms of the parameters of the parent graph are obtained, thus generalizing ...

  • Zagreb, multiplicative Zagreb Indices and Coindices of ‎graphs 

    Ahmadi, V.؛ ‎Darafsheh, M. R.؛ ‎Hashemi‎, J. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2017-01-01)
    ‎Let G=(V,E) be a simple connected graph with vertex set V and edge set E. The first, second and third Zagreb indices of G are respectivly defined by: $M_1(G)=sum_{uin V} d(u)^2, hspace {.1 cm} M_2(G)=sum_{uvin E} d(u).d(v)$ ...

  • Zahabi’s Style in the Book “al Teb al Nabavy” 

    Heidari, Mahmood (Shiraz University of Medical Sciences, 2014-05-01)
    From the antiquity, Muslim scholars have always been interested in working on the Hadiths(talks) of the Prophet Mohammad (PBUH). Since then, the hadiths, in all fields, especially in fields of health and medicine, have ...

  • ZAP-70 Protein Expression in B-cell Chronic Lymphoid Leukemia: a Single Center Experience from Pakistan 

    پدیدآور نامشخص (West Asia Organization for Cancer Prevention (WAOCP), 2015-04-01)
    Background: Chronic lymphoid leukemia (CLL) is the most frequent type of adult leukemia. The Rai andBinet staging systems have been well recognized as standards for assessing the treatment requirements andoverall ...

  • Zarankiewicz Numbers and Bipartite Ramsey Numbers 

    Collins, Alex F.؛ Riasanovsky, Alexander W. N.؛ Wallace, John C.؛ Radziszowski, Stanis law P. (University of Tehran, 2016-06-01)
    The Zarankiewicz number z(b; s) is the maximum size of a subgraph of Kb,b which does not contain Ks,s as a subgraph. ...

  • Zarathrustrian Mind: Some Comparative Reflections on the Philosophy of Zarathrustra 

    Blücher, Heinrich (دانشکده ادبیات وعلوم انسانی, 2009-03-21)
    This paper deals with an essential problem which the modern western thinker faced with and tried to find a solution for that in ...

  • ZARISKI-LIKE SPACES OF CERTAIN MODULES 

    Fazaeli Moghim, H.؛ Rashedi, F. (Shahrood University of Technology, 2014-01-01)
    Let $R$ be a commutative ring with identity and $M$ be a unitary $R$-module. The primary-like spectrum $Spec_L(M)$ is the collection of all primary-like submodules $Q$ such that $M/Q$ is a primeful $R$-module. Here, $M$ ...

  • Zariski-Like Topology on the Classical Prime Spectrum of a Modules 

    Behboodi, M.؛ Noori, M. J. (Springer and the Iranian Mathematical Society (IMS), 2009-04-01)

  • The Zarit Caregiver Burden Interview Short Form (ZBI-12) in spouses of Veterans with Chronic Spinal Cord Injury, Validity and Reliability of the Persian Version 

    Rajabi Mashhadi, Mohammad T.؛ Mashhadinejad, Hosein؛ Ebrahimzadeh, Mohammad H؛ Golhasani-Keshtan, Farideh؛ Ebrahimi, Hanieh؛ Zarei, Zahra (Mashhad University of Medical Sciences, Iranian Society of Knee Surgery, Arthroscopy and Sports Tramatology,Iranian Orthopaedic Association, 2015-01-01)
    Background:  To test the psychometric properties of the Persian version of Zarit Burden Interview (ZBI-12) in the Iranian opulation.  Methods: ...

  • The Zarzian in the Context of the Epipaleolithic Middle East 

    Olszewski, Deborah I. (Tehran, Tarbiat Modares University, 2012-07-01)
    Although the Zarzian was first identified in the 1920s, it has not been until recently that detailed investigations of it have been undertaken. In contrast to the intensive research on the Epipaleolithic period in the ...