نتایج جستجو برای: chios condensation method

تعداد نتایج: 1658176  

2005
S. Bandyopadhyay M. S. Alam V. K. Agrawal

In the case of multi-component condensation the ‘condensing vapour contains a mixture of components having different boiling points, which condense over a wide temperature range, either in presence of or absence of non-condensing material. In this work, a design algorithm for the condensation of a multi-component vapour mixture in shell side of a shell and tube vertical condenser has been devel...

Journal: :iranian journal of catalysis 2015
amit waghmare shivaji pandit

(diacetoxyiodo)benzene has been used as an efficient catalyst for an improved and rapid one-pot synthesis of biscoumarin derivatives in excellent yield under reflux condition using water as a environmentally benign reaction medium. this aqua mediated knoevenagel condensation of various aromatic and hetero-aromatic aldehydes with 4-hydroxycoumarin using catalytic amount of (diacetoxyiodo)benzene...

An efficient one-pot condensation for the synthesis of 1,8-dioxo-octahydroxanthene is  achieved through a condensation of aryl aldehydes and 5,5-dimethyl-1,3-cyclohexandione in the presence of  NBS. This method enjoys several advantages such as low cost, simple work up procedure and safe reaction condition. In addition, water was chosen as a green solvent.

Journal: :Theor. Comput. Sci. 2005
Weigen Yan Yeong-Nan Yeh Fuji Zhang

The method of graphical vertex-condensation for enumerating perfect matchings of plane bipartite graph was found by Propp (Theoret. Comput. Sci. 303(2003), 267-301), and was generalized by Kuo (Theoret. Comput. Sci. 319 (2004), 29-57) and Yan and Zhang (J. Combin. Theory Ser. A, 110(2005), 113125). In this paper, by a purely combinatorial method some explicit identities on graphical vertex-cond...

Journal: :J. Symb. Comput. 1994
Klaus Lux Jürgen Müller Michael Ringe

We describe a new condensation method for computing the submodule lattice of a module for a finite dimensional algebra over a finite field, which exploits the idea of condensation and extends it to the case of primitive idempotents. The method has been implemented in the new C version of the Meat-Axe developed at Aachen, and we give several examples which have been analysed with our method.

2015
E. Theodosiadou T. Tsiligianni

The purpose of the present study was to investigate whether the electrical resistance values of the cervical mucus and/or blood οestradiol-17β and progesterone concentrations at mating, after oestrous synchronisation during the anoestrous or oestrous period in ewes, are related to fertility. Oestrus was induced by medroxyprogesterone acetate-impregnated intravaginal sponges (Veramix, Upjohn, US...

Journal: :journal of dental materials and techniques 0
eshagh-ali saberi department of endodontics, faculty of dentistry, zahedan university of medical sciences, zahedan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی زاهدان (zahedan university of medical sciences) shahram shahram shahraki department of microbiology, faculty of medical sciences, zahedan university of medical sciences, zahedan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی زاهدان (zahedan university of medical sciences) sediqe sediqe ebrahimipour dental research center, faculty of dental school, birjand university of medical sciences, birjand, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی بیرجند (birjand university of medical sciences) anousheh anousheh rashed mohassel dental research center, faculty of dental school, birjand university of medical sciences, birjand, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی بیرجند (birjand university of medical sciences) narjes narjes akbari dental research center, faculty of dental school, birjand university of medical sciences, birjand, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی بیرجند (birjand university of medical sciences) majid majid rezaei general dentist, tehran, iran

introduction: the purpose of this study was to evaluate the sealing ability of 3 obturation techniques in oval-shaped canals by bacterial leakage assessment. methods: sixty mandibular incisors with oval canals were selected after providing buccolingual and mesiodistal radiographs. the teeth were sectioned at a 10 mm distance from the apex. after instrumentation, the teeth were divided into 3 gr...

1996
Klaus Kirsten David J. Toms

We present a short review of how the effective action formalism, well known in relativistic quantum field theory, can be used to discuss Bose-Einstein condensation of non-relativistic gases. This method lends itself very naturally to an interpretation of Bose-Einstein condensation in terms of symmetry breaking. It also allows for the definition of a very elegant regularization technique involvi...

2010
L. Stojchevska P. Kušar T. Mertelj V. V. Kabanov D. Mihailović

Condensation energy can be thought as the difference in ground state energy between the normal state and the superconducting state in a superconductor. In a way to understand and prove theory for superconducting transition, an accurate measurement of the condensation energy is needed [1]. The most common method for determination of condensation energy is by measuring the thermodynamical critica...

Journal: :The Journal of Cell Biology 1990
E R Wood W C Earnshaw

We report the development of a new method for producing mitotic extracts from tissue culture cells. These extracts reproducibly promote the condensation of chromatin in vitro when incubated with purified interphase nuclei. This condensation reaction is not species specific, since nuclei from chicken, human, and hamster cell lines all undergo chromatin condensation upon incubation with the extra...

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