Ara
Toplam kayıt 793, listelenen: 11-20
The lowland meadow vegetation of the central Black Sea Region of Turkey
(2014)
Türkiye'nin Orta Karadeniz Bölgesinde ova alanların çayır vejetasyonu Braun-Blanquet metodu veTWINSPAN kümeleme, CCA ve DECORANA ordinasyon yöntemleriyle analiz edilmiştir. Araştırmaalanında üç yeni bitki birliği tanımlanmıştır. ...
Synthesis, antibacterial and antioxidant activities of new 1-alkyl-4-(1-alkyl-4-oxo-1,4-dihydroquinolin-2-yl)pyridinium bromides
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2013)
New 1-alkyl-4-(1-alkyl-4-oxo-1,4-dihydroquinolin-2-yl)pyridinium bromides (3a k) were synthesized from 1,4'-diazaflavone [2-pyridin-4-ylquinolin-4(1H)-one] and evaluated for antibacterial and antioxidant activities. A rapid ...
Analysis of indentation size effect (ISE) behavior in low-load Vickers microhardness testing of (Sm123)(1-x)(Nd123)(x) superconductor system
(Springer, 2013)
Indentation size effect (ISE) for (Sm123)(1-x) (Nd123)(x) superconducting samples which were fabricated by the solid state reaction technique for values of x = 0.00, 0.05, 0.10, 0.20, and 0.30 was investigated by analyzing ...
Magnetization of Gd diffused YBa2Cu3O7-x superconductor: experiment and theory
(Iop Publishing Ltd, 2013)
The magnetization of Gd diffused YBa2Cu3O7-x is measured by a vibrating sample magnetometer (VSM) at selected temperatures (5, 25, 50, 77 K). the experimental results for the magnetization are analyzed in the critical state ...
Novel triazole bearing zinc(II) and magnesium(II) metallo-phthalocyanines: Synthesis, characterization, photophysical and photochemical properties
(Elsevier Science Sa, 2013)
The synthesis and characterization of novel tetrakis N-(3,5-dichlorophenyl)-5-methyl-3H-1,2,4-triazol-3-one (1) and N-(3,5-dichlorophenyl)-5-ethyl-3H-1,2,4-triazol-3-one (2) substituted phthalonitrile derivatives and their ...
Body size and age structure of a highland population of Hyla orientalis BEDRIAGA, 1890, in northern Turkey
(Pensoft Publishers, 2013)
Body size and age structure of a highland population of Hyla orientalis BEDRIAGA, 1890 (77 = 41) from Kantarh, located at about 800 m a.s.l. in the Black Sea Region of Turkey, was studied using skeletochronology. the maximum ...
Green protocol: solvent- and catalyst-free synthesis of benzimidazole derivatives via microwave technique
(Springer, 2013)
A simple and green protocol has been developed for the synthesis of benzimidazoles. in this protocol, 2-[(alkyl/aryl)(ethoxy)methylidene]hydrazinecarboxylates with 1,2-phenylenediamine derivatives under solvent- and ...
Preparation and antimicrobial activity evaluation of some new bi- and triheterocyclic azoles
(Springer Birkhauser, 2013)
Synthesis of the carbothioamides (5, 13, 22) was performed starting from 3H-1,2,4-triazol-3-ones (2, 17) by several steps, and then, these carbothioamides was converted to triheterocyclic compounds incorporating 1,2,4-triazole, ...
Design, synthesis and biological activities of some 7-aminocephalosporanic acid derivatives
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2013)
The treatment of 7-ACA with 4-substituted benzensulfonyl chlorides afforded the compounds containing 4-nitro/aminophenyl sulfonylamino moiety in the cephalosporanic acid skeleton (2, 4). the synthesis of the cephalosporanic ...
Sn diffusion coefficient and activation energy determined by way of XRD measurement and evaluation of micromechanical properties of Sn diffused YBa2Cu3O7-x superconducting ceramics
(Springer, 2013)
This study manifests not only the effect of Sn diffusion on physical, electrical, mechanical, structural and superconducting properties of the bulk YBa2Cu3O7-x (Y123) superconductors prepared by the conventional solid-state ...