Disposed of in the open air coal is constantly in contact with oxygen from the air, which leads to oxidation of coal in this matter and is released a certain amount of heat. If there are no conditions to the constant heat sinks, warming occurs, then the only inflammatory coal matter. The tendency of matter to carbon just warming up and only inflamm...

By DRAGOLJUB UROŠEVIĆ

There is a great variety of definitions of the term project. In the broadest sense, „Project is every temporary and structured process that achieves a time-limited goal or a group of goals“. The recognized American Project Management Institute PMI briefly defines a project as „a temporary venture with the aim of creating a unique ...

By MILORAD RADMILOVIĆ, IGOR LAZAREVIĆ

Gender structure of the population has been changing in dependence on fertility rate and its difference within genders, but also by emigration movements to which the population of this part of Republika Srpska was susceptible to. The ratio of male and female population can be best observed in the value of the masculinity and femininity factors in c...

By TEŠO RISTIĆ, KORNELIJA RISTIĆ

This study, as it can be concluded from the title of this work concerning an important segment of the population structure, is about the economic structure. Economic structure of the population has changed in regard to the year of the census. It has been affected by purely demographic factors (fertility, mortality, migrations, age and gender struct...

By TEŠO RISTIĆ, KORNELIJA RISTIĆ

In aim discussed about ruderal flora in the region Pale. Plant material collected from the surface that has been stamped out area, the places where defer droppings, organic or inorganic source, around the old deserted railroad tracks, along the roads, around construction sites, around the Miljacka riverbed, and from cultivated and uncultivated gree...

By SLAĐANA PETRONIĆ, DRAGANA PAVLOVIĆ, VESNA MILIĆ

From 35 location in the area of Pale, a ruderal community Arctio-Artemisietum vulgaris (Tx.1942) Oberd. et al. 1967 has been analysed. Photoes are made at neglected places around roads, streets, in the dumps, at the construction sites were organic origin waste are being placed and where direct antrophogenic condition are minimal. Floral elements, l...

By SLAĐANA PETRONIĆ, DRAGANA PAVLOVIĆ, VESNA MILIĆ

The principle of the integral approach to environmental protection requires harmonised legal acts (laws) in a number of fields of social action, thus creating clear grounds in relation to jurisdiction, higher sphere of social action and sanctioning of failure in implementation of the prescribed measures. Such grounds are still non-existing in the F...

By SLAVKA SUFI-MIĆIĆ

Ozone occurs in the atmosphere at the highest volume in the stratospheric and tropospheric layer. In the stratosphere occurs naturally through the action of solar and cosmic radiation on oxygen molecules that break down to atomic oxygen, with the creation of molecules of ozone. Tropospheric ozone occurs in the lower layers of the atmosphere in the ...

By NEĐO ĐURIĆ, JOVAN ĐUKOVIĆ, NADA BOŽIĆ, RADENKO BABIĆ, BOSILJKA STOJANOVIĆ

The paper is describing main construction project of ,,Vidovača 1” landfall rehabilitation on road R-    223, section: Prokuplje - Žitni potok, km:56+928. Selected solution consists of the RC panels and RC     tie-beams, and proved to be suitable for the unfavorable, steep and inaccessible terrain, prone to     m...

By SRĐAN SPASOJEVIĆ, BOŠKO UBIPARIP

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

New European legislation and regulation in the field of mining and geology related to mining, when it comes to classification and valuation of mineral reserves and resources of raw materials, required to be sure, from an economic point of view, define and implement a process evaluation of mines and mineral deposits of raw materials, to determine th...

By DRAGOLJUB UROŠEVIĆ

Handing problems in this paper is dedicated to defining the basic optimization of tehnological parameters chamber layers of lignite mining methods and large coal thickness in the complex conditions of exploatation. On observed methodological approach is performed mathematical modeling of rational parameters chamber spoil or spoil battery....

By MIRKO IVKOVIĆ

The bridge on the Sava River, which connects the town of Brcko the Croatian Republic was built around 100 years ago and has mainly been continuously open to traffic. Occasional delays before World War II and during World War II when it was demolished in the construction of one field of pillars, represent the creation of the periods in respect of hi...

By NEĐO ĐURIĆ, ANĐA ĐUJIĆ, PETAR MITROVIĆ, SNEŽANA TADIĆ, JOVO MILJANOVIĆ

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

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