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Application of biological materials for removing pollutants from water by adsorption is also known as biosorption, and such adsorbents as biosorbents. Advantages of biosorption over conventional methods are numerous, but the low price and availability of materials are basic criteria for the selection of potential biosorbents. Therefore, by-products of industry and agriculture are the subject of many scientific investigations. One of the most important by-products of brewing industry is the brewer's spent grain which is produced in large quantities throughout the whole year. As lignocellulosic material, brewer's spent grain have a certain sorption capacity for heavy metal ions which is examined in this paper. The results of batch adsorption experiments showed the best fit for Langmuir model, and the amount of adsorbed ions per unit of mass of adsorbent is in the range typical for this group of adsorbents. With the adsorption capacity of about 12 mg/g, brewer's spent grain proved to be potential biosorbent for practical application in the treatment of wastewater with concentrations of heavy metal ions higher than allowed.

Период 20. века одликују већи број друштвених промена, развој индустрије, као и промена у структури породице. Поред тога, један од великих покретача потребе за новим стамбеним простором је велико ратно разарање на територији Европе у току Другог светска рата. Знатан недостатак стамбеног простора је довео до масовне изградње. У раду су идентификована три различита периода у развоју вишепородичног становања на основу промена током 20. века. Први период представља време након Првог светског рата и од двадесетих до тридесетих година прошлог века, други период обележен је развојем индустрије у становању око и након Другог светског рата, од тридесетих до педесетих година, и трећи период обележавају промене које наступају у времену од педесетих до осамдесетих година прошлог века. Сваки временски период одликује напредак или еволуирање, како проблема који мотивишу развој вишепородичног становања, тако и иновативних решења у пројектовању. Услед јаснијег сагледавања промена одабрана су три примера изведених објеката , по један из сваког периода. Сваки пример је у одређеном својству експериментална архитектура и све примере издвајају специфични концепти у приступу пројектовању у том периоду, посебно заједничких садржаја у објекту. Рад, кроз одабране примере вишепородичног становања, сагледава просторну манифестацију друштвених и других промена. Фокус анализе у одабраним примерима представљају заједнички простори, док простор стана није предмет детаљније анализе. Сваки од три периода одликују висока иновативност и показатељ да вишепородично становање може на различите начине да одговори на захтеве и идеје у различитим периодима. Кључне речи: 20. век, експериментална архитектура, промене стамбеног простора, Наркомфин зграда, Стамбени блок у Марсеју, Валден 7 The period of the 20th century is characterized by a large number of social changes, the development of industry, as well as changes in the structure of the traditional family. In addition, one of the major drivers of the need for new housing is the wartime destruction in Europe during two world wars. Significant housing shortage resulted in Mass housing development. This paper recognizes three different periods of development of multi-family housing, as a result of different changes during the 20th century. The first period represents the period after the First world war from the 1920s to the 1930s, the second period features industry involvement in housing around and after the Second world war from the 1930s to the 1950s and the third period centers around changes in spatial and cultural sphere of housing from the 1950s to the 1980s. Each time period is characterized by the progress or evolution of both problems that motivate the development of multi-family housing and innovative solutions for multi-family housing. Paper analyses three examples of built buildings from each time period. Each example is in a certain way an experimental architecture from its time and is distinguished by specific qualities and aspirations especially in the design of common areas of these buildings. The paper through selected examples of multi-family housing researches spatial manifestation of social and other changes. The focus of the analysis of the chosen buildings is on common areas, while the space of the dwelling is not subject to detail analysis. Each of the three periods is characterized by high innovation and an indication that multi-family housing can respond to requests and manifest new different ideas.

Contemporary legislation, not only criminal and criminal proceedings law, has entered a new stage, that is currently underway and that is reflected in significant reforms and new legislation, as well as seeking new solutions to increase efficiency in preventing and combating domestic violence. The Republic of Serbia embarked on this path by adopting the Law on Prevention of Domestic Violence, which should primarily intensify the preventive action of the competent state bodies in cases of domestic violence. The Law on Prevention of Domestic Violence started to be applied on June 1, 2017 and given the fact that it has been applied for the past three years, it is necessary to carry out an adequate analysis and to evaluate whether it has increased efficiency when it comes to combating domestic violence. In this regard, the subject of this paper is primarily the analysis of the practical application of urgent measures provided by the Law imposed by the police, the public prosecutor and the court. This research will cover a period of two years of applying of the law, i.e. the period from June 1, 2017 to May 31, 2019. During the research, the statistical method was used along with the methods of analysis, deduction, comparison and description. The paper will analyse: both the total and the individual number of urgent measures imposed by the police; territorial distribution of the imposed urgent measures on the territory of the Republic of Serbia; imposing of extended urgent measures by the court, and a significant aspect of this research will be dedicated to the issue of violations of the imposed urgent measures.

A promising concept of artificial intelligence that records intense developments in the field of digital imaging is Deep Learning (DL). More intensive research within this field has been recorded over the past two decades, and has been applied in the agricultural industry as well. This paper will describe the DL technology which represents a part of Machine Learning (ML), based on Convolutional Neural Networks (CNN). It takes a special application in a machine vision where it allows machines to learn from experience, adapt to new technologies, and perform human tasks. Input data can be from a variety of sources: from classic digital camera shots to satellite images, as well as from recordings obtained by means of hyperspectral, thermal and infrared cameras. The increasing popularity and use of trunks in agricultural fields is increasing, and the very application of these new technologies leads to the huge amount of data that needs to be processed in real time, therefore, DL algorithms are increasingly used. The paper will summarize the current and considered possible applications of CNN in primary and precise agriculture in the future.

The paper analyzes the possibility and the needs for the use of specific types of robots (mini unmanned aircraft with different designs and the designation of UAVs) and the possibility of using in agriculture (agrodrone). The year 2015 was proclaimed (Fortune Magazine, 2016) as the year of increasing and widespread use of UAVs in various areas of human activity, especially in agriculture and forestry (75% of use). This is important for large farm areas, where UAV has many useful functions and a very cost-effective commercial application. Today, the needs for UAVs have increased sharply with various opportunities for both civilian and military needs. There is also a significant interest in the development of new drones that can autonomously fly in different environments and locations and can perform various missions and tasks. Over the past decade, a wide range of applications for drones has gained the significance that led to the discovery of various types of unmanned UAVs of different sizes and weights. In this review, the classification of UAVs ranging based on a detailed overview of the development of the drone industry in recent years, this paper demonstrates the evolution of drones and differents application technologies. Of course, this development is very advanced and revolutionary, as well as the development of mobile and smart phones and the Internet, which will open the way for many users to participate in defining the future of UAV implementation. LIVONA Company, Belgrade, Serbia (and Institute of Agricultural Engineering, Faculty of Agriculture in Belgrade, in tehnical cooperation) has a study and plans on the implementation of the model micro drone EBee SQ Livona RTK in the future general plans for inspection of protection Soils of territory Minicipality of Stara Pazova (351 km2), and agricultural company Napredak, and exspecially plans for soils of agriculture of R. Serbia. VEKOM GeoCompany from Belgrade, (in cooperation with Institute of Agricultural Engineering, Faculty of Agriculture in Belgrade), has a study and plans on the implementation of the model of the drone Aibot KX6 model, in the future of application of agricultural soils of region Open pit Kolubara for area from app. 600 km2 and the other soils of Region). Institute of Agricultural Engineering, Faculty of Agriculture in Belgrade, in cooperation with Municipality of Ub, has a study and plans on the implementation of the model micro drone Hubsan H109S X4 PRO in the future plans general inspection of protection Soils and Waters of territory of Municipality Ub (456 km2). U radu su analizirane mogućnosti i potrebe upotrebe specifičnih vrsta robota (mini bespilotnih letelica sa različitim dizajnom, o značane kao UAV) i način korištenja u poljoprivredi (agrodron). Časopis Fortune je 2015.godinu proglasio kao godinu sve većeg i široko rasprostranjene upotrbe UAV letelica, u različitim oblastima ljudske delatnosti, posebno u poljoprivredi i šumarstvu (75% upotrebe). Ovo je naročito važno za velike farme i oblasti pod šumama, gde UAV ima mnogo korisnih funkcija i veoma isplative komercijalne aplikacije. Danas, potrebe za UAV imaju nagli porast sa različitim mogućnostima kako za civilne tako i za vojne potrebe. Takođe postoji značajan interes za razvoj novih bespilotnih letelica koji mogu autonomno leteti u različitim okruženjima i lokacijama i obaviti različite misije i zadatke. Tokom protekle decenije XXI veka, širok spektar aplikacija za bespilotne letelice je dobio značaj koji je doveo do konstrukcija različitih tipova bespilotnih UAV, različitih veličina i težina i svakako namene. Naravno , tehnološki razvoj kod dron sistema je veoma tehničko -tehnološki napredan i revolucionaran, uz razvoj mobilnih i pametnih (android) telefona i interneta, brzo otvora puteve i mogućnosti za mnoge korisnike u definisanju nove budućnosti implementacije UAV različitim oblastima primene. Kompanija Livona d.o.o., Beograd i Institut za poljoprivrednu tehniku, Poljoprivredni fakultet u Beogradu, u tehničkoj saradnji imaju planove o implementaciji modela mikro drona EBee SK Livona RTK u narednim generalnim planovima za inspekciju, zaštitu i korišćenje poljoprivrednih zemljišta Republike Srbije, i posebno teritorije Opštine Stara Pazova (351 km2), gde je posebno mesto poljoprivrednog preduzeća Napredak a.d. VekomGeo d.o.o, Beograd u saradnji sa Institutom za poljoprivrednu tehniku Poljoprivrednog fakulteta u Beogradu ima planove o budućoj upotrebi drona model Aibot X6, za nadzor na površinama od 600 km2 (i poljoprivredna zemljišta) otvorenog kopa R.B. Kolubara ili drugih objekata. Institut za poljoprivrednu tehniku, Poljoprivredni fakultet u Beogradu, ima planove o saradnji sa opštino m Ub, zbog upotrebe modela mikro drona Hubsan H109S Ks4 PRO u inspekciji oko zaštite i načina korišćenja zemljišta i vo da na ovoj teritoriji (456 km2).

This paper presents the application of cognitive radio technology in vehicular ad-hoc networks aimed to improve the communications between vehicles themselves as well as between vehicles and roadside infrastructure. Due to dynamic approach of spectrum access, cognitive radio is a technology that enables more efficient usage of radio-frequency spectrum. We review actual approaches and discuss research challenges related to the use of cognitive radio technology in vehicular ad hoc networks with emphasis on architecture, spectrum management as well as QoS optimization. The researching on cognitive radio application in vehicular networks is still developing and there are not many experimental platforms due to their complex setups. Some related research projects and cognitive radio realizations are provided in this paper.

The aim of this paper is to discuss analytically the use of informational communication technologies (ICT) in education so that education system could have greater benefits from its carefully planned use. In this paper we tried to show the specificity of the relations between education and ICT. Many things in that relation are accepted for granted, often without much analyzing. We selected some of typical misconceptions which contribute to erroneous ideas about education and ICT relation resulting in limited opportunities for using up new technologies in education. When analyzing ICT in education there is no room for the question whether to use new technologies in the teaching/ learning process or not, but when, why and how to use them. In order to bring these decisions and use ICT potentials for educational purposes, thorough understanding of the nature of teaching and learning is necessary. Education should not be just a buyer or a prudent user of numerous ICT possibilities but it should carefully and thoughtfully transform the teaching/learning process in order equip future and nowadays citizens with skills necessary for living and working in the environment with significantly changed technology. Much more researching and theoretical work is needed in order to fully understand how ICT really influences the learning process and how to use that influence in order to enhance the quality of education.

The problem of public transit network design belongs to the class of NP hard combinatorial optimization problem. Since optimal solution of this problem is difficult to discover, many heuristic algorithms have been proposed in the literature. By applying various heuristic algorithms to one problem instance, various solutions could be generated. We assume, in this paper, that decisions related to public transit network choice should be made in the presence of trade-offs between two or more conflicting objectives (usually, the passengers' and operator's interests are in conflict). In this paper, we propose the model for public transit network choice. The proposed model is based on the Data Envelopment Analysis (DEA). The proposed model is tested on the one of the best known benchmark examples for the transit network design problem.

This paper presents the design and implementation of the smart web sensors. The paper briefly describes the concept of automatic configuration based on electronic specifications in industrial measurement and control systems as well as in distributed systems based on the OGC SWE family of standards. The model for the implementation of Plug and Play sensor in accordance with the IEEE 1451 family of standards is analyzed in detail. Special attention is paid to the network connectivity of analog sensors in accordance with IEEE 1451.4. The practical implementation of the 1451.4 compatible network processor for RTD temperature sensors and adequate software support for 1451.4 TEDS generation, are included in the paper.

The paper describes application of the methodology 'Process management', in providing of financial services at the post office counter hall. An overview of the methodology is given, as one of the most commonly used qualitative methodology, whereby Process management's technics are described , those can better meet user needs and market demands, as well as to find more effectively way to resist current competition in the postal service market. One of the main problem that pointed out is a long waiting time in the counter hall during providing financial services, which leads to the formation of queue lines, and thus to customer dissatisfaction. According that, paper points steps that should be taken during provide of financial services in a postal network unit for providing services to customers by optimizing user time waiting in line and increasing the satisfaction of all participants in that process.

Machine learning algorithms, and artificial intelligence in general, have a wide range of applications in the field of pharmaceutical technology. Starting from the formulation development, through a great potential for integration within the Quality by design framework, these data science tools provide a better understanding of the pharmaceutical formulations and respective processing. Machine learning algorithms can be especially helpful with the analysis of the large volume of data generated by the Process analytical technologies. This paper provides a brief explanation of the artificial neural networks, as one of the most frequently used machine learning algorithms. The process of the network training and testing is described and accompanied with illustrative examples of machine learning tools applied in the context of pharmaceutical formulation development and related technologies, as well as an overview of the future trends. Recently published studies on more sophisticated methods, such as deep neural networks and light gradient boosting machine algorithm, have been described. The interested reader is also referred to several official documents (guidelines) that pave the way for a more structured representation of the machine learning models in their prospective submissions to the regulatory bodies. Algoritmi mašinskog učenja, kao i veštačka inteligencija u širem smislu, su veoma značajni i primenjuju se u razne svrhe u okviru farmaceutske tehnologije. Počevši od razvoja formulacija, preko izuzetnog potencijala za integraciju u koncept dizajna kvaliteta (engl. Quality by design), algoritmi mašinskog učenja omogućavaju bolje razumevanje uticaja kako formulacionih faktora tako i odgovarajućih procesnih parametara. Algoritmi mašinskog učenja mogu biti od naročitog značaja i za analizu velikog obima podataka koji se generišu korišćenjem procesnih analitičkih tehnologija. U ovom radu su ukratko predstavljene veštačke neuronske mreže, kao jedan od najčešće korišćenih algoritama mašinskog učenja. Prikazani su procesi treninga i testiranja mreža, kao i ilustrativni primeri algoritama primenjenih za različite potrebe razvoja i/ili optimizacije farmaceutskih formulacija i postupaka njihove izrade. Takođe, dat je i pregled budućih trendova u ovoj oblasti, kao i novijih studija o sofisticiranim metodama, poput dubokih neuronskih mreža, i light gradient boosting algoritma. Zainteresovani čitaoci se takođe upućuju na nekoliko zvaničnih dokumenata (vodiča), po uzoru na koje mogu da se očekuju i preporuke za strukturiranu prezentaciju modela mašinskog učenja koji će se podnositi regulatornim telima u okviru dokumentacije koja se priprema za potrebe registracije novih lekova.

The central role and the most important role, excluding the instability and occurrence of crisis business that come from outside the company have processes in the company. In order to maintain a position in a competitive market, it is necessary to define and implement business reengineering business processes in the enterprise. Given that modern technologies have an irreplaceable position in all business processes, it is necessary for manufacturers to adapt to emerging situations. In modern business conditions, tractor and engine manufacturers should provide alternative combinations of replacement of existing tractor equipment with suitable, which supports different applications using the same or new sensors. This implies extensive testing of samples of electrical equipment prior to installation, according to prescribed procedures and methodology. On the basis of the obtained results and defined technical-functional characteristics, an assessment of the usability of the examined sample and the system as a whole is formed. As business processes of reengineering require subprocesses and new procedures, the necessary laboratory tests and experimental research are carried out. Companies that use their resources best use their resources with their processes, achieving a competitive advantage that results in superior value creation. The results obtained lead to the acquisition of additional values ie the design of a new or redesigned product with a modern electrical appliance and a modern design. Advanced technologies for tractor electrical equipment aim to contribute to the overall quality of the tractor and enable the operator of the tractor to be efficient, comfortable, safe and safe in traffic. This paper gives a part of the exploitation research of the existing electrical equipment and laboratory testing of the functionality of the modern steering column with the associated sensor. The aim of these tests is to search for the alternatives of the electrical equipment components. The contribution of this type of test is uncertain as it ensures the quality of agricultural tractors and increases the competitive advantage. At the same time, it allows manufacturers of electrical equipment to improve the characteristics of their products.

Contemporary culture is often characterized as the ''instant culture'', in which new mobile technologies and social nature of Web 2.0 enable individuals' continual access to seemingly unlimited scope of information and media content, no matter where they are. This creates a channel through which these individuals become constantly available for interaction, therefore by creating digital content it is now possible to engage them, in such a way that this interaction will not disturb their everyday habits and behavior in using digital media. That is where content marketing is created: a tool which strives to engage individuals through media content that will create a certain value for the consumer. Since content marketing demands quality and creative content that also has certain marketing purpose, here arises the question of the integrity of such creative process. Marketing activity, journalism, and creativity must be driven by certain ethical codes, which will insure the truthfulness, honesty, and safety of the interaction between the consumers and the creators of media content. This paper strives to divulge ethical ambiguities in content marketing, emphasizing truthfulness and transparency as key factors of its success as a tool in digital marketing, while also accentuating the importance of creating valuable and quality content for further evolution of this variety of expression through digital media.

The aim of this paper is the collection, processing and statistical analysis of data from the results of testing concrete cube samples which are tested in the Laboratory for materials of the Faculty of Civil Engineering, University of Belgrade, in the period from 2012. to 2017. year. For the needs of the analysis, the data from the Report on testing of control concrete cubes were taken, the basic characteristics of hardened concrete are also classified. Statistical analysis of the date of concreting, age of samples, composition of concrete, volume mass, pressure strength, required concrete marks etc have been carried out. The statistics showed that the most commonly used cements were the following markings: CEM II A-M (V-L), CEM II A-M (S-L), CEM II A-S, with the highest share of concrete mark MB 30 with 66,8% and MB 40 with 14,3 % stake.

In this paper was presented the technical procedure implemented for the fault diagnostics of the thyristor bridge in an АС/DC converter. During the development of the new generation of digital controllers for AC/DC converters, it was required for these devices to have a possibility for a real-time detection of the thyristor converter fault. Thyristor bridge fault should be detected without the need for the state monitoring of the particular power semiconductor switches or rapid fuses. Thyristor bridge fault was identified using the measurement of the line-frequency second harmonic in the rectifier output current signal. Output voltage and current waveforms were presented, as well as the current spectra, in the cases of the thyristor bridge operation without one switch. The operation principle was described for a protection from an asymmetric operation of a thyristor bridge. A negative influence of high-order harmonics was analysed on the particular rectifier components, both in the cases of the output voltage control, as well as for operation in the current limit mode.

Combustion of different fuels in boiler furnaces leads to formation of fireside deposits on irradiated as well as on convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass, especially agricultural. In the paper presents the results of the analysis of the criteria for estimating the formation of deposits on heating surfaces of boilers in the case of biomass combustion. Also, the ash related problems during biomass combustion in the boiler furnace were considered. Key empirical correlations have been tested for slagging and fouling in case of coal or biomass combustion based on testing of different types of fuel in laboratory and real furnace conditions. The analysis has shown that many sorts of agricultural biomass as well as the Kosovo lignite have a high fouling and slagging tendency, as confirmed by indicators based on the chemical composition of fuel ash and ash solubility temperatures.

The identification and classification methodology of brownfield locations in the territory of seven settlements in Danube region in Serbia are presented in the paper toward the use of adaptive reuse regeneration method. Identification of brownfield locations is based on analysis of different plans, strategies of sustainable development and existing databases. This locations are classified according to original uses of existing buildings and planned uses. The classification is based on analysis of proper parts of plans for each settlement which refer to existing and predominantly planned uses. The objectives of research are related to creating an overview of locations for potential investments which allows further researches and access to regeneration projects that realize concurrently, which is of significance for development of Danube region in Serbia, generally. By classification, the research is directed to reconsideration of uses planning process(urbanistic aspect), compatibility of uses and selection of regeneration method for the buildings which are out of use (architectural aspect). U radu je prikazana metodologija identifikacije i klasifikacije braunfild lokacija na teritoriji sedam naselja u Podunavlju u Srbiji u cilju primene mera regeneracije zasnovanih na prilagođavanju potrebama nove namene postojećih objekata koji su van upotrebe. Identifikacija braunfild lokacija se zasniva na analizi različitih nivoa planova, strategija održivog razvoja za pojedinačna naselja i postojećih baza podataka. Ove lokacije su klasifikovane prema prvobitnim namenama zatečenih objekata i planiranim namenama. Klasifikacija je sprovedena na osnovu analize delova odgovarajućih planova pojedinačnih naselja koji se odnose na postojeće i planirane pretežne namene. Ciljevi istraživanja se odnose na formiranje pregleda lokacija za potencijalne investicije koji omogućava dalja istraživanja i uvid u projekte regeneracije koji se istovremeno odvijaju, što je od značaja za razvoj područja Podunavlja u Srbiji u celosti. Klasifikacijom se istraživanje usmerava ka preispitivanju procesa planiranja namena (urbanistički aspekt) i razmatranju kompatibilnosti namena i izbora mere regeneracije za objekte van upotrebe (arhitektonski aspekt).

Hybrid warfare is a new term that attempts to include and highlight all the specifics of contemporary conflicts in the first two decades of the 21st century. This attractive term has become very popular in the wider context of media and political circles whereas opinion on this issue is divided in the professional public. In order to understand the main idea of hybrid warfare, it is useful to start from the classic concept of war as the continuation of politics by other means. Innovative approach and logical analysis can be used to consider a wide range and variety of other non-military means and methods that transfer conflict from the sphere of political relations to other areas: economic, financial, transport, informational, media, cultural, religious, sports. Comparative processes of globalization and technological development, especially in the sphere of information and communication technologies, combined with other factors, offer new opportunities and fertile ground for hybrid warfare. However, the main idea and contents of hybrid warfare are not completely new, but they have been applied earlier under the other name. The term special war, psychological war and propaganda can be found in older national sources. The purpose of this paper is to compare new and old concepts in the understanding of conflicts for the purpose of clearer perception of current issues and adequate comprehension of new terminology.

One of the more significant aims of researchers in education is to establish the most effective methods of assessment of students' motivation for learning. As the number of studies on motivation is extremely large, there is also a wide variety of methods and techniques for assessing it. Selfreporting methods are most commonly used, they differ in their theoretical underpinnings, and are used to measure different components of motivation (goals set, intrinsic/extrinsic motivation, attributions, aspirations, etc.). Observation is the method most frequently employed within the behaviorist approach to the assessment of motivation for learning. Proponents of the neuropsychological approach maintain that behavior is determined by complex interactions between biological, cognitive and psychological systems, and their research seeks to establish differences in neural activity linked to motivational processes. Within the phenomenological approach a flexible, holistic methodology for studying motivation is being developed, with an emphasis on the subjective experiences of individuals, on meanings and on the perception of their motivational states. The paper analyzes the characteristics, advantages and limitations of the above-mentioned approaches.

In this paper, a novel microwave higher-order filter design is presented using dual-mode resonators. The filter is realized in multilayer technology in order to reduce the footprint area. The structure consists of two dielectric layers separated by a common ground plane. The filter is realized with two resonators which are printed on different sides of dielectric layers. The conductive coupling between the resonators is realized with a via. The coupling between the resonators is investigated as a function of the via position. The proposed filter design achieves a size reduction of 50% as compared to classical microstrip design.

In order to achieve sustainable and ecologically acceptable energy development there is a growing need for utilization of alternative and renewable energy sources (RES). A need for the utilization this type of energy sources is dictated by the reality of the energy market. Also, the usage of RES is necessary for environmental protection reasons, i.e. the global pollution, emission reduction of CO 2 and other pollutants. In the total renewable energy potential of Serbia, biomass has an important percentage, out of which 60% is agricultural biomass, a fuel with very good quality but with specific characteristics in comparison to forest biomass and fossil fuels. This is the reason for a different manner of its usage. In order to utilize biomass from agricultural production for energy production, it is necessary to develop adequate devices and technologies. In the paper an analysis and comparison of combustion characteristics several types of agro and forest biomass is performed in order to their energy applications. All biomass characteristics where performed in accordance with actual standards. In addition, analysis of different technologies for biomass combustion on the base of obtained results was performed. Also, some other aspects of the concrete application of biomass beside the main problems that occur during the biomass combustion were analyzed.

The state administration activities are practiced in different areas of social life, including the field of biomedicine. In this paper, the author explains which activities of the state administration are practiced in the field of biomedical assisted insemination and by which bodies of the state administration. Given the fact that the activities of the state administration have a different nature, the attention is paid only to authoritative activities in individual situations.

In contemporary international trade the term 'trade' refers not only to traditional products and services, but also to specific forms of trade with transferable permits which are directly related to environmental protection. Transferable licenses can be sold or bought on the market or invested in an emision bank, and used later in the future. In this paper, the emphasis is on the so-called 'cap and trade' - trade with GHG emissions (Emission Trading - ET), on organized markets, often on the virtual market through computer systems. ET system minimizes the total cost of reducing emissions and thus achieves the goal of reducing emissions conducted where the lowest marginal cost of reducing emissions is. In addition to the 'cap and trade' system there is a 'baseline and trade' system. The difference between these is related to setting emission limits and the methods of allocation of transferable permits. There is a large number of markets that deal with this specific form of trade with licenses. These markets show growth and it is indicative that new markets will emerge. Also, in the future it can be expected that ET markets will be more connected, and creating diverse forms of associations in a global market.

Introduction. The rehabilitation process involves a whole team of experts who participate in it over a long period of time. Development of Robotics and its Application in Medicine. The Intensive development of science and technology has made it possible to design a number of robots which are used for therapeutic purposes and participate in the rehabilitation process. Robotics in Medical Rehabilitation. During the long history of technological development of mankind, a number of conceptual and technological solutions for the construction of robots have been known. By using robots in medical rehabilitation it is possible to implement the rehabilitation of peripheral and central motor neurons by increasing the motivation of patients for further recovery and effectiveness of therapy. The paper presents some technological solutions for robot-assisted rehabilitation of patients of different age groups and some possibilities of its use in the treatment. Conclusion. Using robots in standard physiotherapy protocols that involve a number of repetitions, exact dosage, quality design and adaptability to each individual patient leads to the significant progress in the rehabilitation of patients.

World packaging market achieves turnover of about $620 billion per year with one third of this amount being associated with packaging made from polymer materials. It is expected that this kind of packaging consumption will hold at least 3% of the world packaging market share in the next five years and that it will surpass the consumption of all other materials used in the packaging production. This can be contributed to product quality, low production costs as well as significant investments made in the development of polymer materials, packaging technology and packaging. This paper presents some development directions for packaging made from polymer materials, such as: packaging in protective atmosphere, the use of active and intelligent packaging, and the use of biopolymers and recycled polymers for packaging production that come into direct contact with the packed product. Na svetskom tržištu ambalaže godišnje se ostvari promet od oko 620 milijardi US dolara. Jedna trećina ove sume otpada na ambalažu od polimernih materijala. Očekuje se da će porast potrošnje ambalaže od polimernih materijala biti najmanje 3% u sledećih pet godina i da će biti veći od porasta potrošnje svih drugih materijala, koji se koriste za izradu ambalaže. Zbog kvaliteta i cene polimerni materijali polako istiskuju druge materijale i u ovoj oblasti primene. Veliki doprinos tome daju proizvođači polimernih materijala i ambalaže od polimernih materijala, kao i svi oni koji koriste ovu ambalažu za pakovanje svojih proizvoda, značajnim ulaganjem u razvoj polimernih materijala, tehnologiju izrade ambalaže i pakovanja. U okviru ovoga rada prikazani su neki od pravaca razvoja ambalaže od polimernih materijala, kao na primer: pakovanje u zaštitnoj atmosferi, primena aktivne i inteligentne ambalaže, sve veća primena biopolimera i reciklata polimera za izradu ambalaže koja dolazi u direktan kontakt sa pakovanim proizvodom.