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Now showing items 131-140 of 298
Bolu Masifi (Bolu kuzeyi) ve yakın civarının stratigrafisi
(1999)
İnceleme alanı, Bolu il merkezinin kuzeyinde yer alan "Bolu Masifi" ve çevresini kapsamaktadır. İnceleme alanında Karadere metamorfitleri (Prekambriyen), Yellice formasyonu (Kambriyen - Ordovizyen), Dirgine Grani-toidleri ...
Sirelina orduensis (foraminifera) a new genus and species from the Maastrichtian of Northeast Anatolia (Golkoy-Ordu)
(MICROPALEONTOLOGY PRESS, 1998)
A new genus and species of foraminifera is described from the Maastrichtian of the Golkoy (Ordu) region of Turkey. It is named Sirelina orduensis n. gen., n. sp. The test of the genus has a microgranular calcereous structure ...
Manganese and zinc in the ovipositors and mandibles of hymenopterous insects
(ACADEMIC PRESS LTD, 1998)
X-ray microanalysis of the ovipositor and mandibles of various hymenopterous insects has revealed the presence in many species of up to 10% wt/wt of either zinc or manganese in the cuticle. These metals appear to be involved ...
Laboratory experiments on the investigation of the effects of sulphuric acid on the deterioration of carbonate stones and surface corrosion
(KLUWER ACADEMIC PUBL, 1999)
In this study, the effect of sulphuric acid, the major constituent of acid rain, on carbonate stones has been investigated. For this purpose, samples from historical buildings of Sivas city have been collected. The ...
Porfiroklast sistemleri ve makaslama durumunun belirlenmesinde kullanımı
(1997)
Porfiroklast sistemleri, kuyruklarının ortaya koyduğu geometrik şekillere göre $\alpha$ ve $\delta$ olmak üzere ikiye ayrılmaktadır,$\alpha$-tipi porfiroklastlar; bir simetri ekseninin her iki tarafında ve kuyruklara parelel ...
Improvement in electroabsorption and the effect of the electric field in the tuneable wavelength converter
(1999)
The numerical results of the study of a novel wavelength converter which can be tuned with the application of an external field are presented. For this device, exciton binding energies, radiuses and the absorption coefficient ...
DETERMINATION OF THERMAL GELATION POINTS OF A VINYLIDENE-CHLORIDE ACRYLONITRILE COPOLYMER BY A SPECTROPHOTOMETRIC TECHNIQUE
(ELSEVIER SCI LTD, 1991)
In this study, the thermal gelation points of a vinylidene chloride/acrylonitrile random copolymer have been determined using a spectrophotometric technique. In the first part, the thermal gelation temperature and the ...
Aç bırakılan ve beslenen Oncorhynchus mykiss'in karaciğer ve kas dokusu glikojen miktarı
(1999)
Bu çalışmada, aç bırakılan ve beslenen Oncorhynchus mykiss'in karaciğer ve kas dokusu glikojen miktarındaki değişmeler araştırılmıştır. Eşeysel olgunluğa erişmemiş balıklar ayrı havuzlarda iki grup halinde 28 gün süreyle ...
In vitro swelling studies and preliminary biocompatibility evaluation of acrylamide-based hydrogels
(ELSEVIER SCI LTD, 1996)
In this in vitro study, the biocompatibility of acrylamide-based hydrogels such as acrylamide/crotonic and acrylamide/itaconic acid, prepared by using gamma-rays, has been investigated against some biochemical parameters ...
A study in the seasonal variation of phytoplankton in Hafik Lake (Sivas,Turkey)
(1998)
Hafik gölünün fıtoplankton kompozisyonundaki mevsimsel değişimler Nisan 1986 dan Haziran 1987 ye kadar çalışılmıştır. Bacillariophyta, Chlorophyta, ve Cyanophyta fıtoplankton komunitesinde en fazla bulunan alg grupları ...