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Приказ резултата 141-150 од 165
Effect of density and plant position of Datura stramonium on maize productivity
(European Weed Research Soc, Wageningen, 2002)
Tendencies of agricultural tractors development / Tendencije razvoja poljoprivrednih traktora
(Naučno društvo za pogonske mašine, traktore i održavanje, Novi Sad i Univerzitet u Novom Sadu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Novi Sad, 2002)
General techniques development significantly affects agricultural tractors development. In mechanization of agriculture, three concepts of mobile systems development are present: tractors development, self - propelled ...
On theta-connectedness and theta-closure spaces
(Elsevier, Amsterdam, 2002)
Let (X, T) be a topological space. A point x is in the theta-closure of A, denoted by cl(theta) A, if each closed neighbourhood of x intersects A. The pair (X, cltheta) is a closure space, also called a neighbourhood space. ...
The most important aspects of determining of total count of migroorganisms in the raw milk of cows / Najznačajniji aspekti utvrđivanja ukupnog broja mikroorganizama u svežem mleku krava
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd i Poslovno udruženje za stočarstvo - grupacija za mlekarstvo, Beograd, 2002)
Milk is synthesized in specialized cells of the mammary gland and is virtually sterile when secreted into the alveoli of the udder. Beyond this stage of milk production, microbial contamination сan generally occur from ...
Wind generators: Promising sources of electric power / Vetrogeneratori - perspektivni izvori električne energije
(JP Elektroprivreda Srbije, Beograd, 2002)
This paper presents a technical, economic and environmental analysis of the conversion of wind power into electric power. The analysis based on experiences acquired in countries where the field of wind energetic has been ...
Silage lucerne in cows feeding / Silaža lucerke u ishrani krava
(Institut PKB Agroekonomik, Padinska skela, 2002)
Problems associated with the lucerne silage use in dairy cows feeding. These problems are the increased solubility and degradability of proteins. With processed such as wilting, fermentation stimulation with carbohydrate ...
The influence of age at first fertilization on performance traits of sim mental cows / Uticaj uzrasta pri prvoj oplodnji na proizvodne osobine krava simentalske rase
(Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad, 2002)
Certain reproductive and performance traits of Simmental cows, as well as the demonstration of those traits depending on the effect of age at first fertilization, were investigated. The investigation included 606 cows ...
Content and availability of copper in serbian smonitza soils / Sadržaj i pristupačnost bakra u smonicama Srbije
(Savez poljoprivrednih inženjera i tehničara, Beograd, 2002)
The soils samples of typical simonitza soils were collected from the plough layers at 10 locations in Serbia. The basic physical and chemical properties, as well as, the total and available Cu content in the soil were ...
Barium titanate screen-printed thick films
(Elsevier Sci Ltd, Oxford, 2002)
Barium titanate (BT) thick films were prepared from mechanically activated powders based on BaCO3 and TiO2. After homogenization and milling in a high-energy vibro mill, the powders were calcined at 700 degreesC for 2 h ...
The influence of various factors on milk clotting time / Uticaj odabranih faktora na brzinu koagulacije mleka
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2002)
The influence of pH (6.5 and 5.8), amount of added CaCl2 (0, 200 and 400 mg/l)), coagulation temperature (30ºC and 35ºC) and heat treatment of milk (65ºC/30 min and 87ºC/10 min) on the rate of rennet induced milk coagulation ...