ПЛАТОН репозиторијум: Recent submissions
Prikaz rezultata 481-500 od 1190
-
UTICAJ VREMENSKIH USLOVA I NAČINA ĐUBRENJA NA VISINU BILJKE KOD RAZLIČITIH SORTI JAROG PIVSKOG JEČMA
U ovom radu je izučavana varijabilnost visine stabla, pod uticajem vremenskih uslova i načina đubrenja, kod dve sorte jarog ječma. Visina stala je varirala kod izučavanih sorti ječma. Primenom rastućih doza azota utvrđena ... -
Some new identities for the second covariant derivative of the curvature tensor
In this paper, we have studied the second covariant derivative of Riemannian curvature tensor. Some new identities for the second covariant derivative have been given. Namely, identities obtained by cyclic sum with respect ... -
Synthesis of Zinc Doped Phosphate Tungsten Bronzes and its Redox Activity in Aqueous Solution of LiNO3
Phosphate tungsten bronzes (WPB) have been intensively investigated for many applications due to their interesting chemical, optical, electrical, and mechanical properties. Their most known usages are as a pigment in ... -
PHYSICAL-CHEMICAL CHARACTERIZATION OF PHOSPHATETUNGSTEN BRONZE DOPED WITH IRON FROM HETEROPOLY SALTS AS PRECURSORS
Heteropolyacids, with a general formula ofH3+xAM12O40∙nH2O (x=0-1; A=P, Si, B, As, Ge;M=Mo, W; n=30-6) are of special interest as newmaterials because of their high conductivities. Among them special attention deserves ... -
PHYSICOCHEMICAL INVESTIGATION Zn DOPED PWB
Polyoxometalates (POMs), although having more than a hundred years of history, continue to attract the attention of researchers as catalysts, solid superionic proton conductors at room temperatures, applicable in different ... -
TOXIC METALS IN SOIL SAMPLES NEAR SOURCE OF POLLUTION WITH ECOLOGICAL RISK IN NORTHERN KOSOVO AND METOHIJA
The term toxic metals means heavy and light metals. Higher toxicity of heavy metals compared to light ones was stated, while many light metals belong to physiological and oligo-elements. The term heavy metals means metals ... -
The Role Of Analytical Chemistry Of Metal Ions In Monitoring The Quality Of The Environment
There is no doubt analytical laboratories have an essential role to play in environmental protection through monitoring of pollutants in air, water or soil. Research on trace elements and the effects of their ingestion ... -
UTICAJ RAZLIČITIH KOLIČINA AZOTA I FOLIJARNOG ĐUBRENJA NA PRINOS I KOMPONENTE PRINOSA OZIME PŠENICE (Triticum aestivum L.)
Ozima pšenica tokom vegetacije koristi velike količine mineralnih elemernata, među kojima azot ima najveći uticaj na prinos. Razvojem novih tehnologija gajenja, primena bioregulatora i folijarnih đubriva sve je više ... -
Preparation and characterization of phosphatetungsten bronze doped with iron from heteropoly salts as precursors
Heteropolies of acids and salts heteropolises of acids can also be used as starting materials for the production of tungsten bronzes. These bronzes have a specific structure that results from the collapse of the Kegin anion ... -
EFEKAT ZALIVNOG REŽIMA U ZATVORENOM PROSTORU NA INTENZITET POJAVE PLAMENJAČE KRASTAVCA
Eksperimentalna istraživanja obavljena su u Gračanici 2019. godine, na komercijalnom gazdinstvu u plasteniku. Varijanta tretirana fungicidom Previcur Energy imala je u proseku najniži stepen zaraze od 0,5%. Na varijanti ... -
Sadržaj i distribucija teških metala u reci Ibar tokom poplava i izlivanja jalovišta
This paper examines the impact of high flood magnitude on heavy metal pollution in the Ibar River, northern Kosovo and Metohija. The area of analysis is one of the most important industrial regions of Pb / Zn in Europe. ... -
Infinitesimal bending of DNA helices
(Scientific and Technical Research Council of Turkey - TUBITAK^(Turkiye Bilimsel ve Teknik Arastirma Kurumu), 2021-01-21)The mathematics of DNA molecules is often studied as a double helix model. This paper focuses on the modelling of infinitesimal bending of DNA helices. The paper checks the flexibility of DNA molecule, i.e. the flexibility ... -
Notes on product semi-symmetric connection in a locally decomposable Riemannian space
The purpose of this paper is to investigate the product semisymmetric connection in a locally decomposable Riemannian space. The curvature tensors of this connection were considered. Some properties of almost product ... -
Савремене методе масене спектрометрије у аналитици психоактивних супстанци у судској токсикологији
Mass spectrometry as an analytical technique has advanced extremely rapidly. New instruments with extraordinary characteristics have appeared on the market. Atmospheric ion sources have been developed, existing mass analyzers ... -
Application of Electrochemically Synthesized Ferrates (VI) for the Removal of Th(IV) From Natural Water Samples
The efficiency of the application of electrochemically generated Na2FeO4, for the purpose of the elimination of Th(IV) ions from water samples as coagulating agent was investigated. Th is a radioactive element often used ... -
Od dokumenta do narativa: Upotreba fotografija iz posete Josipa Broza Tita gradu Prizrenu 1967. godine
(Centar za muzeologiju i heritologiju, Beograd, 2018)U radu se analiziraju fotografije nastale tokom posete Josipa Broza Tita Prizrenu, tačnije crkvi Bogorodice Ljeviške i Sinan-pašinoj džamiji. One se uzivaju kao svedočanstvo događaja iz 1967. godine, putem kojeg se može ... -
25 година Међународне ликовне колоније Погановски манастир
(Центар за културу, Димитровград, 2018)У септембру 2017. године одржана је 25. Међународна ликовна колонија Погановски манастир. Поводом овог јубилеја организован је и округли сто на ком се дискутовало о досадашњем раду колоније и предлозима за њен будући живот. ... -
Dissonant heritage and promotion of tourism in the case of Serbian medieval monuments in Kosovo
(Routledge, 2018)During and after the war in Kosovo in 1999, Serbian medieval monuments were recognised as symbols and bearers of Serbian identity. This led to the fact that among the Albanian population in Kosovo, they were seen as an ... -
EFIKASNOST HEMIJSKIH I ZNAČAJ MEHANIČKIH MERA U SUZBIJANJU CRVENE PEGAVOSTI LIŠĆA ŠLJIVE
: Jedan od važnijih gljivičnih patogena koji izaziva prevremeno opadanje lišća šljive je Polystigma rubrum. Ispitivanja su obavljena u toku 2019. godine. Ogled je postavljen po blok sistemu sa pet varijanti, a svaka ... -
KOMPARACIJA BIOLOŠKIH I HEMIJSKIH MERA ZAŠTITE JAGODE OD SIVE TRULEŽI U USLOVIMA NAVODNJAVANJA
Eksperimentalna istraživanja su obavljena 2017. godine na komercijalnom gazdinstvu, u naselju Višnjica (Beograd). Na osnovu rezultata komparacije bioloških i hemijskih mera zaštite jagode od fitopatogena Botrytis cinerea ...