This paper presents one simple method for direct multiplier-free narrowband minimum-phase FIR filter design. The design is based on the minimum-phase filter specification. The designed filter is a cascade of recursive running sum (RRS) filters and cosine filters. The sharpening technique is used to improve the magnitude characteristic of the designed filter. We apply different modified sharpening polynomials to RRS and cosine filters. As a result, we obtain a less complex design that meets the desired minimum-phase specification. The Rouche's theorem is used to prove that a designed filter is a minimum phase.

This work points to the relevance of regional and state systems of garment sizes. High quality, garment size systems, garment design and economy are currently the focal points, which belie the outdated strategy of competitiveness based on product cost. The average body dimensions have considerably changed in the last decades. We have investigated these differences in a number of European countries and compared the garment size systems. A concrete example is provided by the hind part of women's trousers and comparisons have been made. The conclusion is that most countries still possess their own official garment size systems, which differ in many aspects from the others. In addition, larger firms in some countries use their internal standards, which vary to some extent. The conclusion based on research is that they depend on the function and purpose of the garment, on trends in fashion, on the design and on the economy of production.

U radu je dan presjek primjene industrijskih robota u Europi i svijetu. Analiziran je broj instaliranih robota u Europi i svijetu te pracena godisnja instalacija industrijskih robota. Konkretno je analizirana primjena u Japanu i Europskoj Uniji i konstatirana razlika. Dana je analiza robota po industrijskim granama. Detaljno je analizirana cijena robota po pojedinim zemljama, odnosno analizirana je cijena robota u odnosu na cijenu obavljenog rada. Pokusali smo da izvrsimo procjenu primjene robota u narednom periodu i izvan industrijskih oblasti.

Cilj rada je sto tocnije određivanje karakteristika pukotine kod trodimenzionalnih problema mehanike loma, a to znaci sto kvalitetniji unos ulaznih parametara potrebnih za izabrani model. Eksperimentalni podaci ce služiti kao provjera numerickog modela.U radu je izvrsena eksperimentalna analiza procesa sirenja pukotine za standardne epruvete. Stvarne pukotine koje se pojavljuju u realnim konstrukcijama su ostri zarezi kod kojih je radijus zakrivljenja velicina dimenzije kristalnih resetki. Takvu geometriju pukotine je tesko izraditi mehanickom obradom. U radu je koristena epruveta sa jednostavnom gemetrijom koja je izrađena mehanickom obradom od materijala C.4732. U radu su predstavljeni rezultati analize udarnih svojstava te određivanja parametara mehanike loma. Rezultati dobiveni eksperimentalnim putem su pokazali standarna odstupanja.

Reengineering of production is a process of continuous innovation and advancement of existing products, technologies, manufacturing processes and systems, and the survival of numerous manufacturing and business systems depend on the efficiency of their application. In the paper are spoken about reengineering and new manufacturing philosophy, it presents of competitive capability, simulations and expert systems application at reengineering.

Developments of sewing machines used in garment industry are discussed. Leading machine manufacturers in the world have presented new generation of their machines as the last IMB exhibitions. The machines are characterized by a high degree of automation and control of all of their functions. New ergonomic solutions are also presented, together with workplace design and some futuristic technical solutions of sewing aggregates. Various attachments and devices have also been presented, all with the aim to improve sewing machine efficiency and further enhance the quality of the article of clothing produced.

For the past ten years the advanced technologies is most often applied in manufacturing activities for the purpose of optimization, controlling and increasing of the productivity of manufacturing processes. The usefulness of advanced technologies can be observed in terms: the reduce the amount of work, the improvement of business results, the implementation of new techniques and technologies, the advancement of product quality and market acknowledge manufacturing. In the paper is performed advanced technologies for transition countries, Rapid Prototyping, information technologies, implementation of knowledge methods, advanced technologies and reengineering of production in transiton countries.

Application of multifactorial experiment in the process of direct extrusion was analysed. The aim was to determine the dependence of direct extrusion force on elements of the processing regime and characteristics of material by good planning of experiment and by application of regression and dispersion analysis.

The service life of the rocket motor is largely based on structural considerations. Service life prediction is based on the data obtained from tests of mechanical properties and some enviromentaly experienced cosequences. Materials characterization plays a key role in predicting service live. The primary causes for propellant degradation are slow chemical reactions, the gases these reactions produce and environment stresses placed on the materials. Aging of a propellant grain can result in cracking, surface hardening, modulus changes and other materials property changes. Both aging and environmental stresses can result in micro-cracking, fissuring of the propellant and de-bounding from the case or housing. In particle filled polymeric properties, aging can result in changes in particle to binder bonding (dewet strength) and binder elastic properties. These defects can result in abnormal burning rates and unsafe operation of the motor. It is essential to assess the mechanical properties in order to predict the remaining life of the propellant. In this work methods of the estimation of the service life proposed on stronger thermodynamic materials base. Influence climate, and scatter inspection date are reexamined in order to improve service life. The micromechanical model of the damage are coupled with environment factors and storage history. There are many advanced methods which can be used to manufacture a missile structure in order extend service life. The key structural component is the pressure vessel containing the solid propellant, which is subject to the most extreme physical and thermal conditions, since it needs to withstand the pressures and temperature generated during the burning phase of the propellants. Inspection and chemical analyses play a key role in determining the degree degradation.Visual, ultrasonic and X-ray inspection are needed to defect anomalies in the mechanical components. Inspection and chemical analyses play a key role in determine the degree of degradation. The mechanism of the moisture-related degradation are also required for some vital rocket engine components.

The characteristics of thread for cotton knitwear making are described. The meaning and significance of knitwear softening, specific quality in technological process of knitting wear sewing are observed. By changing the measuring system it is possible to establish very precisely the piercing force of sewing needle, which is significantly with the knitwear ladder damage and the quality of clothes making. Three kinds of a 100% cotton knitwear depending of knitting cultivation, kind and concentration of softener, fineness of sewing needle and thread, number of layers, the possibility of lowering and correction of piercing needle in the sewing process of knitting wear is examined.

Imajuci u vidu da svaka tehnologija ima određeni tehno ekonomski vijek trajanja, to namece potrebu intenzivnog istraživanja i mogucnosti supstitucije postojecih neproduktivnih tehnologija kroz razvoj i primjenu reviteliziranih i novih tehnologija. supstitucija konvencionalnih i neproduktivnih tehnologija uvjetuje,s jedne strane razvoj modeliranja,simulacije,umjetne inteligencije i modela optimizacije,kao i druge metode u cilju revitalzacije postojecih tehnologija i s druge strane,istraživanja i razvoj novih metoda i tehnologija obrade,kao i primjenu poznatih visokih tehnologija koje se koriste u tehnoloski razvijenim zemljama, uz odgovarajucu optimizaciju i diseminaciju.Osnovna ideja rada sastoji se u tome da se primjenom revitalizacije i modernizacije smanjuju tekuci troskovi proizvodnje po jedinici proizvoda.

Development and surveillance in the world brings us from the third industrial revolution to the fourth industrial revolution, i.e. Industry 4.0. This is due to the fundamental technologies of Industry 4.0, such as the Internet of Things (IoT), smart sensors, additive technologies, artificial intelligence, big data (Big Data), virtual and augmented reality (AR), information and communication technologies, today there are over forty-eight technologies of Industry 4.0, and the most deserving is robotic technology, which has been constantly researched and developed in recent years, which is explained in the paper. From the implementation of the first industrial robot in the automotive industry until today, the automotive industry remains among the leaders in the number of implemented robots in the world, and next to automotive technology, the electrical/electronic industry is the second in the number of applied robots in the world. The paper provides an analysis of the use of industrial robots in the world in the last twelve years, and a special review is given of the use of industrial robots in the automotive and electrical/electronic industries. The leading countries in the application of industrial robots in these two technologies were also analyzed. In the coming years, the use of both industrial and service robots in the world will increase year by year, especially in these two technologies due to the fact that companies are implementing Industry 4.0 with the aim of being competitive on the global market, and they are unable to achieve this without the implementation of robots.