نتایج جستجو برای: cones

تعداد نتایج: 11494  

Farrokh Roya Nikmaram Roya Ahmadi Tahereh sadat Nasiri Moghaddam

In this work, the electronic properties of BP and CSi Nano cones have been investigated by self-consistent reaction field (SCRF) method in water solvent at B3PW91/6-31G (d,p) level of DFT theory for study of  for interactions of 5-Fluorouracil Anticancer Drug with theses Nano cones. The percent of change of energy gap (%ΔEg) shows that the complex formation of 5-Fluorouracil with BP ...

B. Kheirfam, M. Haghighi

In this paper, by using the exponential convexity property of a barrier function, we propose an infeasible interior-point method for Cartesian P_*(k) horizontal linear complementarity problem over symmetric cones. The method uses Nesterov and Todd full steps, and we prove that the proposed algorithm is well define. The iteration bound coincides with the currently best iteration bound for the Ca...

Journal: :journal of dentistry, tehran university of medical sciences 0
sedigheh khedmat dental research center dentistry research institute, department of endodontics, school of dentistry, tehran university of medical sciences, and iranian center for endodontic research, tehran, iran. farzaneh aghajani department of dental biomaterials, school of dentistry, dental research center dentistry research institute, tehran university of medical sciences, tehran, iran. shabnam zaringhalam undergraduate student, school of dentistry, tehran university of medical sciences, tehran, iran.

to compare the mechanical properties of resilon and gutta-percha cones after storing at three different temperatures.one-hundred standardized size 40/02 gutta-percha cones and 100 resilon cones were randomly divided into four groups. the first group of the materials were tested immediately after receipt as the control group. the other three were stored in their packages at -12°c, 4± 1°c and 22±...

Journal: :basic and clinical neuroscience 0
ali yoonessi mojtaba hajihasani shahriar gharibzadeh mohammadreza zarrindast ahmad yoonessi

previous evidence has shown that the number of l and m cones in retina varies significantly between subjects. however, it is not clear how the variation of l/m ratio changes the behavioral performance of the subject. a model of transformation of data from retina to visual cortex for evaluation of various l/m cones ratios is presented. while l/m cone ratios close to 1 brings the best performance...

Introduction: The most common approach for obturation of roots which were treated endodontically is lateral condensation. Finger spreaders have an essential role in packing the gutta-percha cones. This survey was carried out to compare the compaction index of root canal obturation made by Stainless Steel (SS) and Nickel-Ttitanium (Ni-Ti) spreaders and different gutta-percha tapers. Materials a...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. saatchi l. etesami

statement of problem: it has been established that successful root canal treatment depends on the quality of obturation. deeper penetration of spreaders can improve the apical seal and the quality of the obturation. purpose: the aim of this study was to compare the initial penetration depth of spreaders during lateral condensation of 0.04 and 0.02 tapered gutta-percha master cones. materials an...

Journal: :bulletin of the iranian mathematical society 2015
m. aghajani k. nourouzi d. óregan

in this paper, we investigate the continuity of linear and sublinear correspondences defined on cones in normed spaces. we also generalize some known results for sublinear correspondences.

Ahmad Yoonessi, Ali Yoonessi, Mohammadreza Zarrindast, Mojtaba Hajihasani, Shahriar Gharibzadeh,

Previous evidence has shown that the number of L and M cones in retina varies significantly between subjects. However, it is not clear how the variation of L/M ratio changes the behavioral performance of the subject. A model of transformation of data from retina to visual cortex for evaluation of various L/M cones ratios is presented. While L/M cone ratios close to 1 brings the best performance...

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