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Toplam kayıt 36, listelenen: 21-30
Mannheim Offsets of Ruled Surfaces
(HINDAWI LTD, 2009)
In a recent works Liu and Wang (2008; 2007) study the Mannheim partner curves in the three dimensional space. In this paper, we extend the theory of the Mannheim curves to ruled surfaces and define two ruled surfaces which ...
A generalization of surfaces family with common spatial geodesic
(ELSEVIER SCIENCE INC, 2008)
We analyzed the problem of constructing a surfaces family from a given spatial geodesic curve as in the work of Wang et al. [G.-J. Wang, K. Tang, C.-L. Tai, Parametric representation of a surface pencil with a common spatial ...
Sempervivum ekimii nom. et stat. nov. for S-minus var. glabrum (Crassulaceae), with an amplified description
(FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD, 2008)
The name Sempervivum ekimii F. Karaer nom. et stat. nov. is proposed for S. minus var. glabrum (Crassulaceae) from Turkey based on examination of type material and other specimens. An amplified description of the taxon is ...
EFFECTS OF FUNGICIDE ON MEIOSIS OF TOMATO (LYCOPERSICON ESCULENTUM MILL.)
(BANGLADESH BOTANICAL SOC, 2008)
The effects of Equation Pro (22.5 % Famoxadone + 30 % Cymoxanil) fungicide applied to tomato grown in greenhouse at recommended dosage (40 g/100 1 tap water) by manufacturing company and double the recommended dosage (80 ...
Some further analytical results on the solid angle subtended at a point by a circular disk using elliptic integrals
(ELSEVIER SCIENCE BV, 2007)
A series formulation involving complete elliptic integrals of the first and second kinds for the solid angle subtended at a point by a circular disk is presented. Results from the present model were tested against data ...
A one-dimensional silver(I) coordination polymer with saccharin and pyrazine: synthesis, crystal structure, thermal analysis, FTIR spectra, and DFT studies
(SPRINGER/PLENUM PUBLISHERS, 2008)
A silver(l) complex of saccharinate (sac) with pyrazine (pyz), [Ag(sac)(pyz)](n), has been synthesized and characterized by elemental analysis, IR, thermal analysis, and single-crystal X-ray diffractometry. The complex ...
On the evaluation of rectangular plane-extended sources and their associated radiation fields
(PERGAMON-ELSEVIER SCIENCE LTD, 2007)
The objective of this paper is to provide an efficient and reliable analytical procedure for the evaluation of rectangular plane-extended sources and their associated radiation fields. Integrals with integer and non-integer ...
Evaluation of novice physics teachers' teaching skills
(AMER INST PHYSICS, 2007)
The purpose of this study is to evaluate novice physics teachers' teaching skills they developed through teaching programs. This work has been carried out by employing case study approach. The findings were collected from ...
Effect of complexation on photocatalytic degradation of dissolved organic nitrogen compounds
(TAYLOR & FRANCIS INC, 2007)
The effect of metal ions on TiO2 mediated photocatalytic oxidation for the determination of dissolved organic nitrogen compounds is investigated. Ethylenediaminetetraaceticacid was chosen as a model molecule for DON ...
Disciplinary problems in secondary education: a sample of Amasya
(ELSEVIER SCIENCE BV, 2009)
This study was planned so as to perform an examination of the discipline problems experienced in the secondary education schools in accordance with school types. In this study, in which the special situation method was ...