Претраживање
Приказ резултата 31-40 од 4903
Saprobiological investigations on the Pusta reke river using macrozoobenthos as bioindicator / Saprobiološka istraživanja Puste reke korišćenjem makrozoobentosa kao bioindikatora
(Zavod za zaštitu prirode, Beograd, 2001)
In the period from April, 1998 to January, 1999 we carried out saprobiological investigations on the Pusta Reka River using macroinvertebrates as bioindicators. The results show a low organic pollution (beta - mesosaprobitic ...
The application of atomic absorption spectrophotometry (AAS) for determination of the content of heavy metals in food products the in lacquered tinplate tins are filled with / Primena metode atomske apsorpcione spektrofotometrije (AAS) za određivanje sadržaja teških metala u prehrambenim proizvodima kojima su napunjene konzerve od lakiranog belog lima
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2000)
Due to possibility of contamination of food products caused by a rapid pollution of environment, as a consequence of incidents and accidents, it is necessary to exert a regular and systematic control of the content of heavy ...
Determination of limiting separation effects in membrane based air separation for perfectly mixed and cross flow patterns / Određivanje graničnih separacionih efekata pri membranskoj separaciji vazduha primenom modela idealnog mešanja i modela unakrsnog toka
(Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad, 2000)
The aim of this work is to investigate the single-stage separation of atmospheric air through silicone rubber membrane assuming cross-flow and ideal-mixing pattern. The novel graphical procedure for obtaining the permeate ...
Air pollution as result of photooxidants (ozone) originated in the troposphere / Zagađivanje vazduha kao rezultat nastajanja fotohemijskih oksidanata (ozona) u troposferi
(Zavod za zaštitu prirode, Beograd, 2000)
Ozone (O3) and peroxideacetyl-nitrate are the significant photooxidants. Tropospheric ozone, together with mixture of gases of nitrogen oxide NOX (N2O, NO, NO2), carbonhydrid (CH), SO2 and formaldehyde which are released ...
Selection and preparation of soil for vine growing in highlands / Izbor i priprema zemljišta u brdskom području za gajenje vinove loze
(Unija bioloških naučnih društava Jugoslavije, Beograd, 2000)
In the present article, selection and preparation of soils for vine growing in highlands of Serbia have been studied, with a special stress on the selection and preparation of sloping grounds. It has been estimated that ...
Investigation of the qualitative characteristics of diets pertaining to different social and economic household categories in Serbia / Ispitivanje kvalitativnih karakteristika ishrane različitih socio-ekonomskih kategorija domaćinstava u Srbiji
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 1995)
The objective of this study was to analyze the qualitative characteristics of diets of different social and economic household categories (agricultural, mixed and non-agricultural and total) in Serbia in the period 1968-1990. ...
The investigation of the tendencies and effects of the resources on pig meat consumption in the case of different household categories in Serbia / Ispitivanje tendencija i uticaja raspoloživih sredstava na potrošnju svinjskog mesa kod različitih kategorija domaćinstava u Srbiji
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 1994)
The objective of the study was to analyze pig meat consumption in the case of different social and economic categories of consumers (agricultural mixed and non-agricultural) in Serbia and some regions in Serbia (Serbia ...
Mite pests in floriculture practice in grenhouses II / Štetne grinje u proizvodnji cvetnih kultura i zatvorenom prostoru II - pljosnate grinje (Tenuipalpidae)
(Univerzitet u Novom Sadu - Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad, 2000)
In this article general morphological and bioecological characteristics of false spider mites (fam. Tenuipalpidae) are presented. Hosts and distribution, main diagnostic features, life span, symptoms, damage and control ...
Depleted uranium I: Natural uranium, radioactivity and legal regulation / Osiromašeni uranijum I - uranijum, radioaktivnost i zakonska regulativa
(Savez hemijskih inženjera, Beograd, 2001)
Depleted uranium is a highly toxic and low radioactive waste; an off-product of the uranium enrichment process and represents dangerous radioactive waste for man and the environment. Up to the 1970-ies was stored, but from ...
Investigation of chemical and morphological composition and radioactivity of phosphogypsum / Ispitivanje hemiskog i morfološkog sastava i radioaktivnosti fosfogipsa
(Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad, 2001)
Phosphogypsum is a waste product in the manufacture of phosphoric acid from phosphorite and sulphuric acid by so-called 'wet process' and represents a refuse that is as such simply thrown away. This paper describes our ...