نتایج جستجو برای: centroid

تعداد نتایج: 8804  

2010
Mehmet Akkurt Ísmail Çelik Hasan Küçükbay Nihat Şireci Orhan Büyükgüngör

The title compound, C(18)H(23)N(2)Si(+)·Cl(-)·H(2)O, was synthesized from 1-[(trimethyl-sil-yl)meth-yl]benzimidazole and benzyl chloride in dimethyl-formamide. The benzimidazole ring system is approximately planar, with a maximum deviation of 0.022 (2) Å, and makes an angle of 74.80 (12)° with the phenyl ring. The crystal packing is stabilized by O-H⋯Cl, C-H⋯Cl, C-H⋯O and C-H⋯π inter-actions be...

2014
Mohammed B. Alshammari Keith Smith Amany S. Hegazy Benson M. Kariuki Gamal A. El-Hiti

In the title compound, C15H12N2S, the methylthioquinazoline group is planar with the methyl C displaced by only 0.116 (3) Å from the plane of the quinazoline moiety. The dihedral angle between the phenyl ring and the quinazoline ring system is 13.95 (5)°. In the crystal, each molecule is linked by π-π stacking between to two adjacent inversion-related molecules. On one side, the inverted quinaz...

2014
Hong Dae Choi Pil Ja Seo Uk Lee

In the title compound, C18H17ClO2S, the dihedral angle between the mean planes of the benzo-furan ring system and the methyl-phenyl ring is 14.50 (4)°. The centroid-centroid distances between the benzene and the methyl-phenyl rings are 3.827 (2) and 3.741 (2) Å, while the centroid-centroid distance between the furan and methyl-phenyl rings is 3.843 (2) Å. These distances indicate π-π inter-acti...

Journal: :International Journal of Mathematics and Mathematical Sciences 2005

Journal: :Journal of Mathematical Inequalities 2017

Journal: :Mathematical Inequalities & Applications 2014

Journal: :Journal of Computer Science 2019

Journal: :IEEE Transactions on Nuclear Science 1980

Journal: :International journal of information retrieval research 2021

The centroid-based clustering algorithm depends on the number of clusters, initial centroid, distance measures, and statistical approach central tendencies. centroid initialization defines convergence speed, computing efficiency, execution time, scalability, memory utilization, performance issues for big data clustering. Nowadays various researchers have proposed cluster techniques, where some ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید