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June 2010 Original scientific article Environment
FLORISTIČKI DIVERZITET POSEBNOG PODRUČJA PRIRODE GROMIŽELJ

Floristička istraživanja ovoga područja su pokazala izuzetan diverzitet vaskularne flore koji se ogleda u prisustvu oko 400 biljnih vrsta svrstanih u 280 rodova i 85 porodica. Taksonomskom analizom utvrđeno je da najveći broj taksona vaskularnih biljaka područja Gromiželja pripada klasi Dicotyledones i to: 335 vrsta, 231 rod i 67 porodica. Analizir...

By Slađana Petronić, Jelena Kadić, Dejan Radošević, Goran Panić

June 2010 Review paper Mining
RISKS IN MINERAL COMPLEX

In the mineral complex and his subsystems like exploration, exploitation and primary dressing are existing big number of risk kinds/groups.The bigest importance have geological ( natural), mining- exploitation, ecological and market ( economical ) risks. All of them are direct or indirect conected with professional risk. The main subject of this wo...

By Ranko Cvijić

Biodiesel is produced by chemically reacting transesterification of a fat or oil with an alcohol, in the presence of a catalyst. The product of the reaction is a mixture of methyl esters, which are known as biodiesel. Despite its positive qualities, biodiesel has certain negative chemical characteristics when it is used as an alternative fuel. Chie...

By Rafinerija ulja Modriča

June 2010 Original scientific article Geology
OPTIMAL PARAMETERS OF GEOTHERMAL DISTRICT HEATING SYSTEM BIJELJINA

Optimization of the regular district heating system is effective only for a short period of time, because the situtation is constantly changing as new consumers and new heating sources are added. On the other side, heating source of geothermal district heating system is of constant capacity and therefore new consumers are not to be added to the sys...

By Veljko V. Đuričković, Aleksandra V. Đuričković

Correct design of district heating network requires that each of its segments operates in optimal working interval, meaning that total costs of each segment (investment and operational costs) are minimal. In order to accomplish that, the designer needs to obtain all information regarding main dependences between segment load, its diameter and costs...

By Veljko V. Đuričković

June 2010 Professional paper Energy
SAFETY OF ENERGY SUPPLY IN REPUBLIC OF SRPSKA

Energy sector, as a key society development factor pays important attention for securing demand of energy supply of customers. Along side with this, risk analyses are performed in order to define causative agent for risk development and its reduction. The activities are performed both in the field of production and the field of energy transfer and ...

By Zdravko N. Milovanović

У овом раду је дат примјер изналажења могућности даљње експлоатације на неком руднику у ситуацији када се у центру експлоатационог поља пронађу природна добра која држава жели да заштити. Примјер методологије ријешавања овакве ситуације је дат на каменолому „Љубачево“ код Бањалуке. Неопходно да се при пројектовању бушачко-минерских радо...

By Владимир Малбашић, Миодраг Челебић

Prilikom istraživanja ruderalne vegetacije Pala izdvojena je zajednica Onopordetum acanthii Br.-Bl. 1926. U radu je prikazan floristički sastav, ekološke i fitogeografske karakteristike ove asocijacije. Floristički sastav navedene fitocenoze čine 94 vrste od kojih edifikatorska vrsta Onopordum acanthium ostvaruje najveći stepen prisutnosti (...

By Slađana Petronić

June 2010 Professional paper Environment
MONITORING UKUPNIH AZOTNIH OKSIDA U VAZDUHU GRADA BIJELJINE

Oksidi azota - NOx (NO + NO2) nastaju prilikom procesa sagorijevanja oksidacijom azotovih jedinjenja u gorivu i termalnim putem, kod visokih temperatura, iz azota i kiseonika. Dio azotovih oksida, koji se pojavljuju u vazduhu, nastaje kao posljedica pojedinih prirodnih procesa u zemljištu, posebno iz azotnih đubriva koja se koriste u poljopr...

By Neđo Đurić, Nada Božić, Radenko Babić, Bosa Stojanović, Mira Vidaković

Seizmičko opterećenje djelovanjem na građevinsku skelu slobodnog sastava – fasadna skela – predstavlja vid incidentnog dešavanja. Opasnosti i štetnosti, te mjere zaštite građevinskih radnika koje izvode fasadne radove na predmetnom objektu pri korištenju date skele su evidentne. Zato, potebno je sa dužnom paž...

By Rašid Hadžić, Žanesa Ljevo