The paper presents the laboratory researches results regarding the Aghires quarts sand electroseparation, in two configurations for the ILES laboratory installation. The first studied configuration used a performant electrode (multi needles) from the endowment of the Intense Electric Field Laboratory from UTCN, while in the second analyzed configur...

By C PLESA, R MORAR, M L VADAN

The case study presents a series of partial discharge measurements, reflecting the state of insulation of 110kV CURRENT TRANSFORMERS located in Sibiu county substations. Measurements were performed based on electrical method, using MPD600: an acquisition and analysis toolkit for detecting, recording, and analyzing partial discharges. MPD600 consist...

By C DAN, R MORAR

Working methods for on site testing of insulations: Gas chromatography (using the TFGA-P200 chromatographer); Electrical measurements of partial discharge levels using the digital detection, recording, analysis and partial discharge acquisition system, MPD600. First performed, between 2000–2015, were the chromatographic analyses concerning...

By C DAN, R MORAR

The paper presents the theoretical foundations of leadership based on the LMX exchange leader- member theory which essentially involves leadership process where a continuous and creative interaction between leaders and followers is at the centre of attention, during which the leader, among other things, affects the degree of mutual trust and organi...

By E STRUKAN, M NIKOLIĆ

A major objective of tribological researches is characterisation of rolling friction, due to various cases encountered in classical engineering applications, like gear transmissions and cam mechanisms or more recent examples met in bioengineering and biomedical devices. A characteristic of these examples consists in reduced dimensions of the contac...

By S ALACI, F C CIORNEI, A CIOGOLE, M C CIORNEI

A major objective of tribological researches is characterisation of rolling friction, due to various cases encountered in classical engineering applications, like gear transmissions and cam mechanisms or more recent examples met in bioengineering and biomedical devices. A characteristic of these examples consists in reduced dimensions of the contac...

By F C CIORNEI, S ALACI, V I CIOGOLE, M C CIORNEI

In this paper we present a technological problem encountered in the machining accuracy of the parts for aerospace made of aluminum alloy extruded profile with length up to 10 meters. Those parts have very tight tolerances and on milling process appear several factors that influence the repeatability of machining processes. Several factors must be c...

By Ș A MOLDOVAN, M COSMA, V NĂSUI

The technical state of the contact line and also the additional equipment in electric rail transport is very important for realizing the repairing and maintenance of the contact line. During its functioning, the pantograph motion must stay in standard limits. Present paper proposes a LabVIEW application which is able to track in real time the motio...

By R ROB, G O TIRIAN, M PANOIU

The brake pads are an important component in the braking system of automotive. Materials used for brake pads should have stable and reliable frictional and wear properties under varying conditions of load, velocity, temperature and high durability. These factors must be satisfied simultaneously which makes it difficult to select effective brake pad...

By A L CRĂCIUN, C PINCA-BRETOTEAN, C BIRTOK-BĂNEASĂ, A JOSAN

The quality of castings has a particularly role in the Romanian foundries. In this context, quality assurance is the overall objective of the foundries. The paper presents the critical analysis performed on moulding- casting technology of the type Lifting mechanism. This casting is a subset of the lifting and rotating mechanism of the furnace vault...

By A JOSAN, C PINCA BRETOTEAN, S RAŢIU, E ARDELEAN, M ARDELEAN

This paper presents the experimental methodology to carry out functional performance tests for an air filter with a particular design of its housing, generically named Super absorbing YXV "Air by Corneliu", patented and homologated by the Romanian Automotive Registry, to which numerous prizes and medals were awarded at national and international in...

By C BIRTOK-BĂNEASĂ, S A RAŢIU, V ALEXA, A L CRĂCIUN, A JOSAN, A BUDIUL-BERGHIAN

The asymmetric cylindrical gears, with involutes teeth profiles having different base circle diameters, are nonstandard gears, used with the aim to obtain better function parameters for the active profile. We will expect that the manufacturing of these gears became possible only after the design and realization of some specific tools. The paper pre...

By F SUCIU, A DASCALESCU, M UNGUREANU

The aim of article is to discuss interaction between stents implanted in the body of worker and harmonic magnetic field in the vicinity of electric wires. In last decades, a growing proportion of people has any devices implanted, to list: cardiac pacemakers, cardioverter – defibrillators. Recommendations of International Commision on Non-ioni...

By P SYREK, M SKOWRON

This paper presents the experimental study of electromagnetic radiation produced by different household equipment. Measurements were performed at various distances from the tested devices and in different operating modes of these, using the FA306 electromagnetic field analyzer. Also, it has been analyzed the cumulative effect of multiple sources. T...

By A IAGĂR, G N POPA, C M DINIŞ

This paper presents a method which allows the optimization of the position and magnitude of the clamping forces for a specific case of processing: milling of a canal in a prismatic workpiece, using a multi- objective method, implemented with ANSYS software. The design variables are location dimensions of clamping elements, whose range of variation ...

By V G CIOATĂ, I KISS, V ALEXA, S A RAŢIU

In order to insure passengers' security and smooth functioning, elevators benefit from speed modeling. The paper aims to compare the evolution of the kinematic parameters (acceleration, speed, amplitude) of the oscillatory movements performed by the suspension ropes of the elevator cabin, considering speed variation at start and stop realized using...

By I CRACIUN, M UNGUREANU, D STOICOVICI

The aim of presented paper is elaboration of methodology of upgrading natural minerals in example of chalcocite and bornite sample. The results were obtained by means of laboratory drum separator. This device operates in accordance to properties of materials, which in this case was electrical conductivity. The study contains the analysis of the for...

By M SKOWRON, P SYREK, A SUROWIAK

The theoretical and methodological foundations of sustainable development of Geosystems were further evolved. It was grounded the new scientific direction "constructive Hydroecology" - the science that studies the Hydrosphere from the standpoint of natural and technogenic safety based on geosystematical approach. A structural separation for constru...

By O M MANDRYK, L M ARKHYPOVA2, A V PUKISH, A ZELMANOVYCH, KH YAKOVLYUK

From the perspective of macroeconomic indicators, investment is a significant determinant of economic development in general, as well as the development indicator of economic entities in the micro segment. Investments are an essential element of any economic policy, because their implementation provides a platform not only for economic development,...

By I SUSIC, M STOJANOVIC-TRIVANOVIC, M SUSIC

Information and communication technologies have found their application in the healthcare sector, including the frameworks of modern dentistry. CAD / CAM application in dentistry is the process by which is attained finished dental restoration through fine milling process of ready ceramic blocks. CAD / CAM is an acronym of english words Computer-Aid...

By I SUSIC, M TRAVAR, M SUSIC

To analyze the metallurgical processes is used, mainly, the statistical fundamental methods that permit to draw conclusions, from the observed values, about the repartition of the frequencies of various parameters, about their interaction, about verification validity of certain premises, and about the research of the dependencies among different pa...

By I KISS, V ALEXA, V G CIOATĂ

The braking system is one of the most important and complex subsystems of railway vehicles, especially when it comes for safety. Therefore, installing efficient safe brakes on the modern railway vehicles is essential. Nowadays is devoted attention to solving problems connected with using high performance brake materials and its impact on thermal an...

By I KISS, V G CIOATĂ, V ALEXA, S A RAŢIU

There have been analyzed reasons of the loss of technical education's popularity. Also, the analysis of known educational and production methods, oriented at the innovative model of development of society, was performed. It is stated that the acquisition of 21st century's skills as a result of competition of technical education are natural for the ...

By L Y SHKITSA, V G PANCHUK, V A KORNUTA

Shafts of electric locomotives are exposed to complex normal and tangential stresses during its exploitation. These stresses could have extremely high level producing the breakage of the shaft. It is well known that shafts have much longer service life than wheels. However, since the stresses in shaft’s material are high, it is possible to mi...

By M TODIC, V GOLUBOVIC-BUGARSKI

The presence of the heavy metals toxic compounds (CuSO4 5H2O, ZnSO4 7H2O and 3CdSO4 8H2O) in water and soil can be observed by their negative effects on the germination and growth process for different vegetable (barley, oat, maize) who are used for human and animal consumption. This paper it aims the determination of germination and growth inhibit...

By V M BREZOCZKI, G M FILIP

Audit of the information system, thanks to the increased use of ICT and related cyber-crime, becomes a very important process in modern companies and institutions. It is usual to engage or outsource a third party for independent financial audit. But what about auditing of the information system of public administration institutions? This paper give...

By D DRLJAČA, B LATINOVIĆ

The particulate matters (PM) are very important compounds of urban air pollution. There are a lot of air pollution sources who can generate PM and one of the most important of them it is urban traffic car. Air particulate matters have a major influence on human health so everywhere are looking for PM reducing solutions. It is knows that one of the ...

By G M FILIP, V M BREZOCZKI

In order to maintain the continuity of the telecom operators' network construction, while monitoring development needs, increasing customers' demands and application of technological improvements, it is necessary to migrate optical transport core network to the next generation networks - Carrier Grade Ethernet Optical Transport Network (OTN CE). Th...

By D GLAMOČANIN

This paper aims to bring some clarification on grain refinement and modification of high strength alloys used in aerospace technique. In this work it was taken into account 7075 Al alloy, and the melt treatment was carried out by placing in the form of master alloy wire ternary AlTiB the casting trough at 730°C. The morphology of the resulting ...

By V HOTEA, J JUHASZ, F CADAR

Human resources are the most important resources of any work organization or institution. They are the bearers of the work process and are key in determining the quality of a product or service. The staff employed in an institution contributes with their work to its business success which is why the institution management should pay close attention...

By LJ LEPIR, D ŠĆEPOVIĆ, A R RADONJIĆ

Project management in modern IT companies is often based on agile methodologies which have several advantages compared to traditional methodologies such is waterfall. Having in mind that clients sometimes change project during development it is crucial for an IT company to choose carefully which methodology is going to implement and is it going to ...

By LJ MICIC

In a small firm, the founder or the owner-manager often leaves his or her own personal “stamp” on the way things are done, finding solutions for the multitude of problems the firm faces, and maintaining control over the firm’s operations. The paper aims to investigate the degree to which the owner-managers are controlling the oper...

By G LOBONTIU, M BANICA, S RAVAI-NAGY

A new, freely programmable, scalable control system for academic research purposes was developed. The intention was, to have a control unit capable of handling multiple PT1000 temperature sensors at reasonable accuracy and temperature range, as well as digital input signals and providing powerful output signals. To take full advantage of the system...

By S EPPLE, R JUNG, K JALBA, V NASUI

A new, freely programmable, scalable control system for academic research purposes was developed. The intention was, to have a control unit capable of handling multiple PT1000 temperature sensors at reasonable accuracy and temperature range, as well as digital input signals and providing more powerful output signals at 230V AC than conventional con...

By S. EPPLE, R. JUNG, K. JALBA, V. NASUI

More and more old machines have the problem that their control electronics’ lifecycle comes to its intended end of life, whilst the mechanics itself and process capability is still in very good condition. This article shows an example of a reactive ion etcher originally built in 1988, which was refitted with a new control concept. The origina...

By S EPPLE, C K JALBA, A MUMINOVIC, R JUNG

During the remanufacturing process, the injector body - after disassembling and cleaning process - should be subjected to some strict control processes, both visually and by an electronic microscope, for evidencing any defects that may occur on the sealing surface of the injector body and the atomizer. In this paper we present the path followed by ...

By D DARABA, I M ALEXANDRESCU, C DARABA

Our article monitors the degree of emotional involvement of the audience in the action film in theaters by measuring the concentration of CO2. The software performs data processing obtained dispersion sensors and displays data during the film. The software will also trigger the start of the air conditioning condenser where we can get harvesting ene...

By P P POP, A POP-VADEAN, C BARZ, T LATINOVIC, O CHIVER

The paper presents a comparative analysis between experimental results and modelling in order to interpret the value of the contact pressure on the asymmetric longitudinal rolling. It is also intended action and the different behaviour of upper cylinder compared to the lower cylinder action in situations when both are driven, or only one operates. ...

By V ALEXA, S A RATIU, I KISS, V G CIOATA

Allelopathy is a process still little studied in the plant world, if we refer to the diversity of biochemical compounds, through which plants can interact with each other, with fungi or bacteria. Biochemical "dialogue" between organisms may have stimulatory or inhibitory effects, contributing to numerical setting of the populations, the assertion o...

By M MARIAN, Z VOŞGAN, O MARE ROŞCA, L MIHALESCU

An alternative and cost-effective solution to developing integrated PV system is to use hybrid photovoltaic/thermal (PV/T) solar system. The temperature of PV modules increases due to the absorbed solar radiation that is not converted into electricity, causing a decrease in their efficiency. In hybrid PV/T solar systems the reduction of PV module t...

By M DOBRNJAC, P ZIVKOVIC, V BABIC

Adopting the most appropriate technology for developing applications on an integrated software system for enterprises, may result in great savings both in cost and hours of work. This paper proposes a research study for the determination of a hierarchy between three SAP (System Applications and Products in Data Processing) technologies. The technol...

By A D BERDIE, M OSACI, I MUSCALAGIU, C C BARZ

In northern Romania, there are numerous tailing ponds, resulting from mining activities that present significant environmental risks. Some of them, including Vrănicioara tailing pond, were the subject of technical projects for ecological rehabilitation. Vrănicioara pond is located on the right side of Cavnic Valley, downstream Cavnic town, about 4 ...

By I BUD, S DUMA, D GUSAT, I PASCA, A BUD

Harvesting energy from nonconventional sources in the environment has received increased attention over the past decade from researchers who study these alternative energy sources for low power applications. Although that energy harvested is small and in the order of milliwatt, it can provide enough power for wireless sensors and other low-power ap...

By A POP-VADEAN, P P POP, T LATINOVIC, C BARZ, C LUNG

Production conditions in today`s world require software support at every stage of production and development of new products, for quality assurance and compliance with ISO standards. In addition to ISO standards such as usual metrics of quality, companies today are focused on other optional standards, such as CMMI (Capability Maturity Model Integra...

By D M PRERADOVIĆ, LJ S MIĆIĆ, C BARZ

This paper presents a computer-aided comparison of some of the most used electromagnetic shielding materials. Computer-aided design (CAD) model and the computer aided engineering (CAE) simulation technologies are used for the analysis of the electromagnetic field shielding performances of each material individually and a comparison will be establis...

By M L CONECICI, C MUNTEANU, I M PURCAR

The purpose of this paper is to create an original fuzzy solution on the existing structure of the control system of continuous casting that eliminates fissures in the poured material from the secondary cooling of steel. For this purpose a system was conceived with three fuzzy database decision rules, which by analyzing a series of measurements tak...

By G O TIRIAN, C A GHEORGHIU, T HEPUȚ, R ROB

This paper presents the results of research based on real data taken from the installation process at Arcelor Mittal Hunedoara. Using Matlab Simulink an intelligent system is made that takes in data from the process and makes real time adjustments in the rate of flow of the cooling water and the speed of casting that eliminates fissures in the pour...

By G O TIRIAN, C A GHEORGHIU, T HEPUȚ, C CHIONCEL

The paper presents some particular aspects associated with measuring of the smallsize parts with high precision, manufactured by injection procedures. The coordinate measuring machine (CMM) are very used in process of measuring parts with different shapes, dimensions and materials of the most varied. It is studied by experiments, the influence of h...

By L DRĂGAN

The relationship between art and technique has been along the time one that is inseparable and systematic, artists appealing to various technologies, tools and practices that help them stimulate their imagination. Today there is a new category of artists, coming from a technical or scientific field, that are being 'trapped' in this „game of a...

By G A PAPIU, N SUCIU

This paper presents a brand new induction electromagnetic launcher, which uses two magnetic fluxes in order to accelerate a projectile. One magnetic flux induce a current in the armature and the second magnetic flux is creating a radial magnetic field. This aproach offer multiple advantages over single flux designs. First we are able to control the...

By L GHERMAN, M PEARSICA, I CIRCIU, C ROTARU

While the European Union has put a lot of emphasis on cluster development due to their inherent advantages such as lower transaction costs, technological transfer and regional development, little is known about how clusters emerge and what can facilitate their competitiveness. This paper aims to study the impact of public-private cooperation betwee...

By D STOICOVICI, M BĂNICĂ, M UNGUREANU, M STOICOVICI

Due to multiple reflexions on walls, the electromagnetic field in a multimode microwave oven is difficult to estimate analytically. This paper presents a C++ program that calculates the electromagnetic field in a resonating cavity with an absorbing payload, uses the result to calculate heating in the payload taking its properties into account and t...

By C ABRUDEAN

Automation processes enter more and more into all areas of life and production. Especially people with disabilities can hardly keep step with this change. In sheltered workshops in Germany people with physical and mental disabilities get help with much dedication, to be integrated into the work processes. This work shows that cooperation between di...

By C K JALBA, A MUMINOVIC, S EPPLE, C BARZ, V NASUI

With increasing automation, many work processes become more and more complex. Most technical products can no longer be developed and manufactured by a single department. They are often the product of different divisions and require cooperation from different specialist areas. For example, in the Western world, a simple coffee maker is no longer so ...

By C K JALBA, A MUMINOVIC, S EPPLE, C BARZ, V NASUI

The manufacturing of PEMFC stacks (POLYMER ELEKTROLYT MEMBRAN Fuel Cell) is nowadays still done by hand. Over hundreds of identical single components have to be placed accurate together for the construction of a fuel cell stack. Beside logistic problems, higher total costs and disadvantages in weight the high number of components produce a higher s...

By C K JALBA, A MUMINOVIC, C BARZ, V NASUI

The quality of electric energy capture and also the equipment operational safety depend essentially of the technical state of the contact line (CL). The present method for determining the technical state of CL based on advance programming is no longer efficient, due to the faults which can occur into the not programmed areas. Therefore, they cannot...

By S RUSU-ANGHEL, A ENE

The dielectric barrier discharge cell (DBDC), also called ozone cell, is the main component of the ozone generators widely used. When the cell is powered with a high voltage value (> 5 kV) in the dielectric gas, arises a high intensity electric field that influences ozone generation processes by silent discharge also called dielectric barrier di...

By I GANEA, R MORAR

The distilled water has the advantage of high value dielectric constant (Ɛ = 81) in relation to ceramic glass materials, currently used for constructing the dielectric barrier. It was necessary to build a thin-walled enclosure of solid insulating material that contain distilled water to achieve a dielectric barrier. This was necessary to avoid expo...

By I GANEA

Although the status of lingua franca can easily be claimed by English nowadays, there are always plenty of challenges involved in the process of teaching a foreign language. The simple mastering of the four skills (reading, writing, listening and speaking) and the acquisition of general grammar and vocabulary may not be enough in some circumstances...

By A FĂLĂUŞ

Adoption of new technologies on mobile phone market in the past 30 years has transformed the industry and had a large impact on the global economy. Technological progress, as the main factor in the adoption of new technologies, has enabled reduce costs and increase equipment performance. The smartphone is perceived by consumers as a sustainable ele...

By N BARKOCZI, G LOBONTIU

The existing framework of corporate governance has shown a number of weaknesses, and the result was a new economic crisis at the global level. The main problems were identified as: increased risk of investors, non-transparency of information, conflict of interest between corporation subjects. European Institute of Internal Auditors in response to t...

By T DRAGIČEVIĆ RADIČEVIĆ, M STOJANOVIĆ TRIVANOVIĆ, LJ STANOJEVIĆ

Special investigative actions are a novelty in the criminal procedure legislation BiH. In our legislation this has been introduced only in 2003. These are actions that need to assist prosecutors to effectively reveal the perpetrators and the evidence of serious and complex crimes, especially organized crime. There are criminal offenses in whose exe...

By V RODIC

Nutrition lies at the basis of life being a factor of permanent action by which the individual, respectively small or large communities have ensured their survival in relation to the environment. Food represents a natural component which provides the energy and the vitality of the body and helps preserve people’s health and welfare. Rational ...

By F DRĂGAN, V V LUPU, A PALLAG, C BARZ, K FODOR

These days, teaching languages – English in particular – has become an ever more complex and challenging task due to the fact that groups of students are eclectic in terms of knowledge of English and level of competence. Teachers try to adapt to this challenging environment by providing a wide variety of activities and materials so as t...

By L TODEA, R DEMARCSEK

Using of Virtual Private Networks (VPN) can establish high security level in network communication. VPN technology enables high security networking using distributed or public network infrastructure. VPN uses different security and managing rules inside networks. It can be set up using different communication channels like Internet or separate ISP ...

By A SKENDZIC, B KOVACIC

Stress triaxiality is considered an invariant of stress, defined as the ratio of hydrostatic stress (hydrostatic pressure by other authors) and the equivalent stress (usually calculated using von Mises criterion). If the values of the main three stresses have comparable sizes, stress triaxiality can be also calculated using the first invariant of t...

By V ZICHIL, A COSERU, F NEDEFF, C TOMOZEI

This paper highlights the main characteristics of the energy market in Romania. Starting from the mode of organization and operation of the electricity market, there are revealed prices and tariffs for electricity for different categories of customers and their evolution in time. There are pointed also ways of setting electricity prices and tariffs...

By M STET

The paper shows the studying of the retaining mechanism of lead ions in industrial wastewaters through static and dynamic ion exchange mechanisms. In the experimental determinations of the lead metallic ion retention, metallurgical industry wastewaters have been used on samples of volcanic zeolite tuff (from Barsana, Maramures), samples that show a...

By A POP, G IEPURE

By definition, a coil is an electrical passive device, which have two terminals, use in electrical circuits to keep the power in magnetic field or to detect the magnetic fields. In winding process, is possible to appear different defects, or issues which can cause in time problems in functionality of products. In this paper, we will analyze two typ...

By Z ERDEI, M HORGOS, O ZETEA