Decimation is process of decreasing sampling rate by an integer, called decimation factor. This process introduces aliasing which may deteriorate the decimated signal and must be eliminated by a filter, called decimation filter. The most simple decimation filter is a comb filter, which has all coefficients equal to unity, and consequently does not require multipliers for its implementation. However, comb filter does not provide enough aliasing attenuation. This paper presents novel combbased decimation filter with an improved alias rejection in comparison with the original comb filter. This is achieved by rotation of comb zeros from their original position, using simple multiplierless filter. Mathematical background for the design of the filter is provided and explained with one example. The proposed method is illustrated with one example and compared with the original comb filter.

Decimation is process of decreasing sampling rate by an integer, called decimation factor. This process introduces aliasing which may deteriorate the decimated signal and must be eliminated by a filter, called decimation filter. The most simple decimation filter is a comb filter, which has all coefficients equal to unity, and consequently does not require multipliers for its implementation. However, comb filter does not provide enough aliasing attenuation. This paper presents novel combbased decimation filter with an improved alias rejection in comparison with the original comb filter. This is achieved by rotation of comb zeros from their original position, using simple multiplierless filter. Mathematical background for the design of the filter is provided and explained with one example. The proposed method is illustrated with one example and compared with the original comb filter.

Digital technology has significantly contributed to the change of people's lives worldwide, because its application has caused a rapid transformation of all aspects of human life, and especially fast transformation in the design, production, operation and maintenance of the production system, which caused an unexpected jump in productivity. It can be said that fourth industrial revolutions ongoing process, which can be labeledin a variety of ways, such as "intelligent factory", "smart industry" or "advance manufacturing". Development of the digital technologies in the last twenty years has introduced us from third in the fourth industrial revolution. The first time the term “Industry 4.0”, which refers to fourth industrial revolution, appears in the Germany in year 2011 whose government promotes automation of production processes by introducing digital technologies. Germany is one of the most technologically developed countries in the world and it is logic that this revolution begins there. This example follows the other countries in the world. Fourth technological revolution depends on a number of new and innovative technological achievements. It is necessary to integrate production processes in all production phases and further applications by using ICT technologies for digitalization. The automation of production processes must include advanced sensors and intelligent robots that can be self-configured to be able to make specific product. It is necessary to collect large amounts of data to be analyzed and used in the production processes. It is also necessary to realize network communication (include mobile and internet technology) between machines in the production process, the production system and the operator, as well as suppliers and distributors. Application of previously mentioned leads to the intelligent manufacturing processes that have a wide range of change of production processes. To intelligent process we can come only by applying intelligent industrial robots because they represent one of the cornerstones of the fourth industrial revolution. In this paper an analysis of industrial and service robot application in production processes. With the implementation of innovative technologiessupported by digital technology in the industry,we come to intelligent manufacturing processes,that is, intelligent factoriesof the future, thus boosting globalcompetition.

The development of sensor, information and communication technology, or new technology, has contributed to the development of robot technology. A new generation of service robots has been developed, and the highest number of their practical applications is for defense and security. Progress and development of information technology, sensor technology and servo-drive is responsible for the development of over 600 different types or prototype service robots. Service robots are designed for professional jobs and service jobs that are used in everyday life. The rapid development of computer management enabled the rapid development of various service robots that can move independently, autonomously exchange information with their surroundings and act completely autonomously (UV Unmanned Vehicles - vehicles that operate autonomously without human management). They can be used in all operating conditions on land, air and water, which is most important for the development of service robots for defense and security. Different applications of service robots for defense and security have been developed, and some are described in the paper, as well as the tendency of their application in the recent years. A large number of service robots for defense and security were developed, which are used for obtaining information about the vulnerability of human populations during earthquakes, fires or military activities. After obtaining information, we can make proper decisions that will serve the purpose of rescue and assistance to the ones in danger. The tendency of application of service robots for security and defense is constantly rising in the past few years. It is estimated that the development of sophisticated service robots for defense, rescue and security will continue in the future, and the number of applications will increase.

The term "INDUSTRY 4.0" or "fourth industrial revolution" was first introduced at the fair in 2011 in Hannover. It comes from the high-tech strategy of the German Federal Government that promotes automation-computerization to complete smart automation, meaning the introduction of a method of self-automation, self-configuration, self-diagnosing and fixing the problem, knowledge and intelligent decision-making. Any automation, including smart, cannot be imagined without industrial robots. Along with the fourth industrial revolution, ‘’robotic revolution’’ is taking place in Japan. Robotic revolution refers to the development and research of robotic technology with the aim of using robots in all production processes, and the use of robots in real life, to be of service to a man in daily life. Knowing these facts, an analysis was conducted of the representation of industrial robots in the production processes on the two continents of Europe and Asia /Australia, as well as research that industry is ready for the introduction of intelligent automation with the goal of establishing future smart factories. The paper gives a representation of the automation of production processes in Europe and Asia/Australia, with predictions for the future.

In 2010 German government continued with the strategic plan named „‟High-Tech Strategy 2020‟‟ with an emphasis on scientific and technological development. Under the title „‟Industry 4.0‟‟they are promoting reform and modernization of production in all industry branches by introducing digital technology, which depends on a number of new and innovative technological achievements. Their intention is to integrate production processes at all stages of formation and use of the product with the use and application of ICT and digital technology. The modernization and automation of production processes include advanced sensors and intelligent robots configured independently so as to monitor and participate in the development of products. In addition, technologically advanced countries like USA, UK, Japan, Sweden and others have accepted and introduced digital technology in production processes with the aim of creating intelligent automation, and intelligent factory of the future. China is faced with competition from ASEAN countries and Central Asia, which have cheap labour market. This weakens the export demand from China to the EU and USA, as evidenced by the „‟Report on the Global Innovation Index 2015‟‟.In response to the „‟Industry 4.0‟‟, the Government of China created the strategy „‟Made in China 2025‟‟, which promotes the relationship between information technology and industrial production, introduces the optimization of production processes, increases the ability to innovate in the industry including ICT, industrial and service robots, high technology machine tools, new materials, etc. China is relatively weak compared to the technologically developed countries in the world in regard to innovation and newer technologies, so it focused on industrial modernization in key sectors: telecommunications, production of commercial aircraft and helicopters, agricultural machinery, medical devices, alternative energy, electric vehicles and materials. The implementation of the adopted strategy in China is creating new opportunities for the promotion of successful innovative and creative economy, which enables the transition from „‟Great industrial economy‟‟ into „‟Powerful industrial economy‟‟.

The world’s largest user of industrial robots in production processes is automotive industry, because global competition in the market requires continuous automation and modernization of production processes in the automotive industry. The use of robots in the world is continuously increasing year by year, so it is expected that about 414.000 robot units will be used in 2019. China is the first country in the world in the application of industrial robots, and is increasing the use every year, so that we can say that the annual trend in the application of robots in China is exponential by function. The leading countries in the application of industrial robots, in addition to China, are: Republic of Korea, Japan, North America (USA) and Germany. The tendency of application of industrial robots in the automotive industry in the world is growing on annual and total level. High application of industrial robots in China has resulted in the development of the automotive industry. The estimate is that in the future China will become the largest user of industrial robots, meaning that China is planning to implement the modernization and automation of production processes in the automotive industry, but also in other industries including electronics industry, metal industry and plastics and rubber industry. The development of new technologies and innovations is leading to the development of robotic technology which has been increasingly used in the automation of production processes. This will, in return, lead to the development and application of "smart automation" or "smart factories" in the future that will, besides vehicles, also produce other high quality products in short time period and with large varieties.

The main goal of this paper is to get a mathema-tical model for the process of deep drawing force with the reduction of wall thickness. Mathematical model should have a correct analytic description of this deformation process and along with that a possibility to calculative deep drawing force and after that a possibility of optimization of the whole deformation process and force. In this paper experiment planning is presented, from defining significant factors (parameters), levels of variation, equipment for experiment performing, processing of receiving results with known analytic models and on the end structuring final mathematical model for deep drawing force.

This Energy stability and security in the world have become important issues in almost every country. These are very important for the economic, social and economic development of each country. Getting energy is crucial for the development of any country, whether it comes to its industry or the economy. The paper presents the development and implementation of renewable energy sources, such as wind-power, solar energy, small hydro and biomass, both in the world and the EU. It elaborates and portrays an increasing trend of renewable energy sources in the total share of energy production, with the trend of reducing fossil fuels in energy production. The paper shows the trend of investments in renewable energy sources, with the trend of opening work posts and employment of workers who are working on the implementation of renewable energy sources, with a special emphasis on solar energy. We analyze the capacity to generate solar energy in the world for the period 2005-2015, as well as in the countries in which solar energy is used the most.