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35-39 STUDIUL EFECTULUI VIBRAȚIILOR ASUPRA DEFORMĂRII DISCULUI DE FRÂNĂ ÎN TIMPUL FRÂNĂRII BRUȘTE PRIN UTILIZAREA INSTRUMENTELOR CAD

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Andreas SITAR la de

STUDY OF VIBRATIONS ON BRAKE DISK DEFORMATION DURING SUDDEN BRAKING BY USING CAD TOOLS

This paper is dedicated to those students who are in an early stage in the Noise Vibration Harshness (NVH) discipline. In this paper we study the effect of vibrations on the deformation of the rotor of a car brake disk in the event of sudden braking. Since the brake disk is often subjected to extreme conditions, in addition to vibration simulation, it has been decided that it is useful to carry out an additional study, namely a static one in which the pressure and force parameters are taken into account to see the potential deformations of the rotor. These parameters simulate the pressing of the brake pads on the surface of the rotor. The paper begins with the definition of basic terms, then presents a logical scheme of actions and finally illustrates the result of the simulations, as well as suggestions for the continuation of the study.

Keywords: NVH, vibration, harmonic study, static study, SolidWorks simulation

Cuvinte cheie: NVH, vibrații, studiu armonic, studiu static, SolidWorks simulation

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35-40 CERCETAREA OPACITĂȚII ȘI CONSUMULUI LA DACIA SANDERO 1.5 DCI FĂRĂ EGR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Lucian-Vasile CRIȘAN-LUPA Septimiu JOVREA Tamás Walter FLESCH la de

RESEARCH OF OPACITY AND CONSUMPTION AT DACIA SANDERO 1.5 DCI WITHOUT EGR

The study of pollutant emissions, especially of the Dacia Sandero 1.5 dCi passenger car at different operating regimes was developed by monitoring the fuel consumption. The introduction of the study is concerned about pollution, the environmental problem which is met every day. Pollution is about emitting in the surrounding environment chemical components which may lead to the structural imbalance between various life forms, which impacts health and comfort at all levels and causes ambient damage by altering natural and life sustaining factors. Different types of pollution do manifest continuously. First of all the air pollution from automobiles is the most important and analyzed in this study. In it is also considered the ecological design approach of most cars. Another section of the study makes a brief history of the internal combustion engines and their improvement process taking into account the pollutant emissions. Further in the study a comprehensive step is about the evolution of the chemical pollution. Last but not least is a description of the devices for measuring the pollutant emissions of cars. Another chapter enumerates and defines the filters, equipment and systems applied in engine development to meet increasingly stringent pollution standards. The study also contains the experimental part of the work. In this part is presented the measuring system used and then the results acquired from the Dacia Sandero 1.5 dCi engine, by monitoring the variation in the opacity of the exhaust smoke and the evolution of fuel consumption in different engine operating regimes. The last part of the study contains the final conclusions and proposed development perspectives.
Keywords: carbon emission, exhaust, gases, pollution, Sandero

Cuvinte cheie: emisii de carbon, eșapament, gaze, poluare, Sandero

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35-41 CERCETAREA OPACITĂȚII ȘI CONSUMULUI LA DACIA SANDERO 1.5 DCI FĂRĂ UN INJECTOR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Liviu-Daniel JOVREA Septimiu JOVREA Tamás Walter FLESCH la de

RESEARCH OF OPACITY AND CONSUMPTION AT DACIA SANDERO 1.5 DCI WITHOUT AN INJECTOR

The study of opacity, in particular for Dacia Sandero 1.5 dCi compression ignited engine in two distinctive operating circumstances was developed by monitoring the exhaust emission and fuel flow with and without an injector failure. The first part of the research is focused on Sandero presentation and its relation with environmental pollution. The last improvements and optimizations of the car are conducted toward the increased performance and efficiency of the car’s operation. The opacity is one of the most important pollution aspects from compression ignited engines. Its effects on the environment are great and significant. It is also analyzed the ecological and dynamic design of the studied car. The present study makes a brief analyze of the available literature on the problem of emissions and consumption. The engine’s improvement and the optimization process should take into account the pollutant emissions and the real source. Last but not least there is a study of vehicle structure, of the common-rail injection system with specific devices for the pollutant emissions control on the investigated car. The paper also presents the applied or the practical part of the research work. In this part the most interesting aspect are the experimental data acquired during the practical measurements in operation, when it is managed the data package and the graphical representation of the results from Dacia Sandero 1.5 dCi engine. This was achieved by monitoring the variation of the exhaust opacity and the fuel consumption level in operating conditions. The study ends with conclusions, observations and predefined development directions.
Keywords: carbon deposits, engine, injection, opacity, pollution

Cuvinte cheie: depozite de carbon, motor, injecție, opacitate, poluare

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35-42 CERCETAREA ECONOMICITĂȚII LIMUZINEI MERCEDES E CLASS COUPE ÎN EXPLOATARE

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Daniel-Liviu JOVREA Lucian-Vasile CRIȘAN-LUPA Septimiu JOVREA la de

RESEARCHING THE ECONOMY OF MERCEDES E CLASS COUPE LIMO IN OPERATION

The present scientific work defines a practical development on the digital data packages aquired through graphical interfaces at on-board panel of Mercedes E Class Coupe. Analyzing the available data from the powertrain on the digital displays and electronic scanners leads to the definition of economy strategies in vehicle exploitation.

Keywords: Benz, eco mode, fuel economy, Mercedes E limousine

Cuvinte cheie: Benz, mod eco, economie de combustibil, limuzina Mercedes E

http://stiintasiinginerie.ro/wp-content/uploads/2020/05/42.-CERCETAREA-ECONOMICITĂȚII-LIMUZINEI-MERCEDES-E-CLASS-COUPE-ÎN-EXPLOATARE-Septimiu-JOVREA-Daniel-Liviu-JOVREA-Lucian-Vasile-CRIȘAN-LUPA.pdfDescarcare text

35-43 EVALUAREA COSTURILOR SUPLIMENTARE OCAZIONATE DE ATENUAREA NIVELULUI DE VIBRAȚII ALE UNUI AUTOMOBIL SECOND-HAND

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Mihai UNGUREAN la de

THE COST ANALISYS REGARDING THE REDUCTION OF VIBRATION LEVELS IN A USED VEHICLE

This study highlights the financial impact caused by the owner’s need to reduce certain vibration levels, which can occur on a second-hand vehicle. In the same time, it presents in detail the main vibrations and noise sources on a BMW 320d – E46 and their actual market price for fixing these technical problems.

Keywords: vibration, BMW, cost, flywheel, stocks, manufacturer, loss of
value.
Cuvinte cheie: BMW, cost, devalorizare, vibrație, volantă, stoc, producător, amortizare

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35-44 STUDIUL VIBRAȚIILOR LA COLOANA DE DIRECȚIE ÎN TIMPUL INTERVENȚIEI SISTEMULUI ABS

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Janos VARTEREZ-NAGY la de

STUDY OF THE STEERING COLUMN VIBRATIONS DURING THE FUNCTIONING OF THE ABS SYSTEM

The article presents a study of the vibrations of the steering column during the intervention of the ABS (Anti-lock Braking System) by pressing the brake pedal.

Keywords: vibrations, noise, braking

Cuvinte cheie: vibratii, zgomot, frânare

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35-45 STUDIUL VIBRAȚIILOR CU SCOPUL DE A RECUPERA ENERGIE DE PE CĂILE DE RULARE ALE AUTOVEHICULELOR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Edmond-Attila KELEMEN la de

STUDY OF THE VIBRATIONS IN ORDER TO HARVEST LOW-LEVEL ENERGY FROM ROADS Scientists have developed different technologies for generating electricity, but in most cases, this is achieved by using fossil fuels that can have a detrimental effect on human health and the whole ecosystem, which means global warming and changing climatic and biological balances. To avoid this, we must solve the reduction of the use of fossil fuels and find new methods of generating electricity similar to photovoltaic and wind technologies. Piezoelectric energy harvesting technology has significant advantages over other renewable energy sources such as solar or wind. Using the pressure of vehicles over the road caused by gravity, the method generates electric energy from the deformations of the paving. Although recent research projects have paid attention to this energy harvesting technology, only a few studies have been conducted on-site to determine its feasibility and economic competitiveness. No data are available about how this was realized. Therefore, it is necessary to develop a research framework that enables assessment of the technology of piezoelectric materials for this purpose.

Keywords: vibrations, energy harvesting, piezoelectric, electrical energy, roads

Cuvinte cheie: vibrații, recuperare de energie, piezoelectric, energie electrică, căi de rulare

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35-46 STUDIUL VIBRAȚIILOR ACULUI INJECTOR DE LA MOTORUL LOMBARDINI 3LD 510

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Răzvan Adrian FILDAN la de

LOMBARDINI 3LD 510 INJECTION NEEDLE VIBRATION STUDY

This article presents the vibration of the injector needle that equips the Lombardini 3LD 510 compression ignition engine. In this case, three injection cases have been developed to capture as many instances of injection needle puncture. As a result, the data obtained from the simulations with the initial situation were compared.

Keywords: nozzle, Lombardini, needle, vibration Cuvinte cheie: injector, Lombardini, ac, vibrație

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35-47 STUDIUL INFLUENȚELOR VIBRAȚIILOR UNEI FREZE ÎN TIMPUL PRELUCRĂRILOR UNUI ELEMENT DE TIP PARBRIZ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Péter LEVENTE la de

STUDY THE VIBRATION EFFECTS OF A MILLING CUTTER DURING THE PROCESSING OF A WINDSCREEN ELEMENT In the first part of this study are presented general aspects regarding a component of the vehicle called windscreen. In the second part there is presented a glass manufacturing process used for glass manufacturing and subsequent processing methods. In the third part there is presented a model of a side-by-side windshield, respective results obtained and the milling methods applied in the processing of this element.

Keywords: vibration, glass, plexi, windscreen, vehicle, milling, deformation Cuvinte cheie: vibrații, sticlă, plexi, parbriz, vehicul, frezare, deformare

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35-48 STUDIUL INFLUENȚELOR TIPULUI DE MATERIAL UTILIZAT ÎN REALIZAREA SCAUNULUI PENTRU UN VEHICUL RUTIER ASUPRA NIVELULUI DE VIBRAȚII

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Mihai-Vasile TURC la de

STUDY OF THE INFLUENCES OF THE TYPE OF MATERIAL USED IN MAKING THE SEAT FOR A ROAD VEHICLE ON THE VIBRATION LEVEL

This paper is a brief representation and interpretation of the specialized literature and international standards about the importance of vibrations action of a seat from road vehicle to the human body. The main subjects analyzed in this paper are the action the vibrations on the human body and the influence of the used material for the manufacturing a bicycle saddle on the vibration level. In order to manufacture a top-quality product a high level of knowledge of the bad effects of vibrations on the human body is required. By studying these aspects, we can obtain a part with an optimized structure both from a technical point of view, as well as from a medical point of view.

Keywords: vibrations, bicycle saddle, whole body vibrations Cuvinte cheie: vibrații, șa de bicicletă, vibrații asupra întregului corp

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35-49 STUDII PRIVITOARE LA INFLUENȚA BIOCOMBUSTIBILILOR UTILIZAȚI ÎN MOTOARELE CU APRINDERE PRIN COMPRIMARE ASUPRA NIVELULUI DE ZGOMOT ȘI VIBRAȚII

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Stelian Viorel REVNIC la de

STUDIES RELATED TO INFLUENCE OF BIOFUELS USED IN COMPRESION IGNITION ENGINE ON SOUND LEVEL AND VIBRATION

Biodiesel is an alternative fuel which can be used in place of diesel in compresion ignition engines either in pure form or by blending it with diesel fuel. Biodiesel is a renewable fuel that is produced from vegetable oils and fat tissues. One of advantage of biodiesel is its less pollution in comparison with diesel fuels. The purpose of this study is to realise an overview, from specialized literature, related to vibro-acoustic behaviour for diesel engine using conventional diesel, biodiesel and its blends. The main goal was to present the fuel with minimum sound and vibration level.

Keywords: biodiesel, sound level, vibrations, noise pollution Cuvinte cheie: biodiesel, zgomot, vibrații, poluare sonoră

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35-50 STUDIUL MANAGEMENTULUI DE ZGOMOT AL SISTEMULUI DE RĂCIRE AL AUTOVEHICULELOR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Thomas BUIDIN la de

NOISE MANAGEMENT STUDY OF A CAR’S COOLING SYSTEM

The article presents a comparative study of four radiator fans with different blade numbers. The four simulations were conducted at different speeds for each fan, in such a way, that the tonal noise caused by the blade passing frequency has the same value in each case. As a result, the discharged air flow rates of the four fans were analyzed and compared.

Keywords: fan, blade passing frequency, air velocity Cuvinte cheie: ventilator, frecvență de trecere a paletelor, viteză aer

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35-52 HUMAN BIOMETRICS AND BIOMETRIC RECOGNITION SYSTEMS; AN OVERVIEW

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Ahmed AK. TAHIR Steluța ANGHELUȘ la de

BIOMETRICA UMANĂ ȘI SISTEMELE DE RECUNOȘTERI BIOMETRICE; O IMAGINE DE ANSAMBLU

Biometric technology is gaining a significant role in presenting the solutions for many issues in various applications that demands person identification such as forensic science, security, finance affairs, border checking and government ministries and offices. It is defined as the technology of analyzing physiological and behavioral traits such as face, fingerprint, iris, retina, voice, and signature etc., for person identification and authorization. Nowadays, lots of research works are carrying out to accomplish biometric recognition systems based on various types of human traits. To provide a comprehensive survey, this paper presents an overview to five biometric traits (iris, fingerprints, face, voice and signature). The overview will cover the way of acquisition, application area, methods of implementation, strength/weakness, and system evaluation.

Keywords: Biometrics, Biometric Recognition System, iris, Fingerprints, Finger Vein, Palm Vein, Face Recognition, Gait Recognition, Human Traits, Voice Recognition, Signature Recognition Cuvinte cheie: Biometrie, Sistem de recunoaștere biometrică, iris, amprente, vene de deget, vena palmei, recunoaștere a feței, recunoaștere a trecerii, trăsături umane, recunoaștere vocală, recunoaștere semnătură

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35-53 PERSPECTIVE INGINEREȘTI IMPRESIONANTE Partea I-a Mircea BEJAN, Ioana BĂLAN, Barbu BEJAN, Ioan VIDICAN, Ioan Aurel CHERECHEȘ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Barbu BEJAN Ioan VIDICAN Ioana BĂLAN Mircea BEJAN la de

PERSPECTIVE IMPRESSIVE ENGINEERS – Part I

Over the past 150 years technology has advanced more than ever predicted history of technology. For example, 3D prototyping / printing has become a widely-appreciated and widely used phenomenon. This is a simple and fast manufacturing process, a technique that allows engineers to overcome certain design difficulties in just a few hours, compared to a few weeks that would take traditional methods. Through this technology, engineering sciences, design and technical research are undergoing transformation and the special materials industry will open up a huge fan of possibilities. With 3D technology, an idea goes directly from the design phase to the execution phase, escalating beyond the traditional stages of product manufacturing. The paper systemizes some of the major 3D printing technologies, presenting tabular, focusing on the advantages, disadvantages and application domains of these technologies. And in Romania, the prospect of expanding the home use of 3D printers open to prosumerators (users acting both as producers and consumers). The 3D equipment maker will create the right legal framework for the commercialization of 3D technology only compatible with the processing of non-hazardous materials. The 3D printer user will be granted access to a type of 3D technology limited by software specifically designed by manufacturers for civil use. And so with the advent of this technology, a new chapter in jurisprudence will soon be written in Romania. But until then, Romania is only taking the first steps in this area.

Keywords: 3D prototyping/printing, FDM-Thermoplastic Extrusion Modeling, SLA-Stereolithography, DLP-Digital Light Exposure, SLS-Selective
Laser Sintering, Laser-SLM-Melting, 3DP- Laminated Layer Manufacturing, PolyJet PJP Printing with Photopolymers, 3D Printed House Construction

Cuvinte cheie: prototiparea/printarea 3D, FDM–Modelare prin Extrudare Termoplastică, SLA–Stereolitografie, DLP–Expunerea digitală a luminii, SLS– Sinterizare Laser Selectivă, SLM–Sinterizare (Topire) Laser a Metalelor, 3DP– Printare inkjet tridimensională, LOM–Fabricare Stratificată prin Laminare, PJP– Printare PolyJet cu Fotopolimeri, construcții de case imprimate 3D

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35-54 PERSPECTIVE INGINEREȘTI IMPRESIONANTE Partea a II-a Mircea BEJAN, Ioana BĂLAN, Barbu BEJAN, Ioan VIDICAN, Ioan Aurel CHERECHEȘ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Barbu BEJAN Ioan VIDICAN Ioana BĂLAN Mircea BEJAN la de

PERSPECTIVE IMPRESSIVE ENGINEERS – Part II

Over the past 150 years technology has advanced more than ever predicted history of technology. For example, 3D prototyping / printing has become a widely-appreciated and widely used phenomenon. This is a simple and fast manufacturing process, a technique that allows engineers to overcome certain design difficulties in just a few hours, compared to a few weeks that would take traditional methods. Through this technology, engineering sciences, design and technical research are undergoing transformation and the special materials industry will open up a huge fan of possibilities. With 3D technology, an idea goes directly from the design phase to the execution phase, escalating beyond the traditional stages of product manufacturing. The paper systemizes some of the major 3D printing technologies, presenting tabular, focusing on the advantages, disadvantages and application domains of these technologies. And in Romania, the prospect of expanding the home use of 3D printers open to prosumerators (users acting both as producers and consumers). The 3D equipment maker will create the right legal framework for the commercialization of 3D technology only compatible with the processing of non-hazardous materials. The 3D printer user will be granted access to a type of 3D technology limited by software specifically designed by manufacturers for civil use. And so with the advent of this technology, a new chapter in jurisprudence will soon be written in Romania. But until then, Romania is only taking the first steps in this area.

Keywords: 3D prototyping/printing, FDM-Thermoplastic Extrusion Modeling, SLA-Stereolithography, DLP-Digital Light Exposure, SLS-Selective
Laser Sintering, Laser-SLM-Melting, 3DP- Laminated Layer Manufacturing, PolyJet PJP Printing with Photopolymers, 3D Printed House Construction

Cuvinte cheie: prototiparea/printarea 3D, FDM–Modelare prin Extrudare Termoplastică, SLA–Stereolitografie, DLP–Expunerea digitală a luminii, SLS– Sinterizare Laser Selectivă, SLM–Sinterizare (Topire) Laser a Metalelor, 3DP– Printare inkjet tridimensională, LOM–Fabricare Stratificată prin Laminare, PJP– Printare PolyJet cu Fotopolimeri, construcții de case imprimate 3D

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35-55 PERSPECTIVE INGINEREȘTI IMPRESIONANTE Partea a III-a

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Barbu BEJAN Ioan VIDICAN Ioana BĂLAN Mircea BEJAN la de

PERSPECTIVE IMPRESSIVE ENGINEERS – Part III

Over the past 150 years technology has advanced more than ever predicted history of technology. For example, 3D prototyping / printing has become a widely-appreciated and widely used phenomenon. This is a simple and fast manufacturing process, a technique that allows engineers to overcome certain design difficulties in just a few hours, compared to a few weeks that would take traditional methods. Through this technology, engineering sciences, design and technical research are undergoing transformation and the special materials industry will open up a huge fan of possibilities. With 3D technology, an idea goes directly from the design phase to the execution phase, escalating beyond the traditional stages of product manufacturing. The paper systemizes some of the major 3D printing technologies, presenting tabular, focusing on the advantages, disadvantages and application domains of these technologies. And in Romania, the prospect of expanding the home use of 3D printers open to prosumerators (users acting both as producers and consumers). The 3D equipment maker will create the right legal framework for the commercialization of 3D technology only compatible with the processing of non-hazardous materials. The 3D printer user will be granted access to a type of 3D technology limited by software specifically designed by manufacturers for civil use. And so with the advent of this technology, a new chapter in jurisprudence will soon be written in Romania. But until then, Romania is only taking the first steps in this area.

Keywords: 3D prototyping/printing, FDM-Thermoplastic Extrusion Modeling, SLA-Stereolithography, DLP-Digital Light Exposure, SLS-Selective
Laser Sintering, Laser-SLM-Melting, 3DP- Laminated Layer Manufacturing, PolyJet PJP Printing with Photopolymers, 3D Printed House Construction

Cuvinte cheie: prototiparea/printarea 3D, FDM–Modelare prin Extrudare Termoplastică, SLA–Stereolitografie, DLP–Expunerea digitală a luminii, SLS– Sinterizare Laser Selectivă, SLM–Sinterizare (Topire) Laser a Metalelor, 3DP– Printare inkjet tridimensională, LOM–Fabricare Stratificată prin Laminare, PJP– Printare PolyJet cu Fotopolimeri, construcții de case imprimate 3D

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35-56 ANALIZA COMPLEXITĂȚII UTILIZÂND ELEMENTE NELINIARE DE TIP DIODĂ LAMBDA

Această intrare a fost publicată în 2019 Volumul 35 și etichetată George MAHALU la de

COMPLEXITY ANALYSIS USING LAMBDA DIODE NONLINEAR ELEMENTS

This work paper treats the analyse of using lambda diode like a nonlinear element in the Chua’s circuit configuration. One other target is testing ways to transform the lambda diode in one nonlinear controled devices.

Keywords: system, chaos, signal, nonlinear element Cuvinte cheie: sistem, haos, semnal, element neliniar

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35-57 ANALIZA COMPLEXITĂȚII UTILIZÂND ELEMENTE NELINIARE DE TIP DIODĂ CHUA

Această intrare a fost publicată în 2019 Volumul 35 și etichetată George MAHALU la de

COMPLEXITY ANALYSIS USING CHUA DIODE NONLINEAR ELEMENTS

This paper work treats the inter-systemic simulation between the Chua circuit and other systems with similar behavior. Like a sugestive example is presented by the Lorenz’s system and it is made the interpretation of similitude between the two physic systems.

Keywords: system, chaos, signal, nonlinear element Cuvinte cheie: sistem, haos, semnal, element neliniar

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35-58 PERCEPȚIE SUBLIMINALĂ ȘI FACTORI EXTERNI ÎN RECLAMELE DE TELEVIZIUNE

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Maria HUMIȚA Nicoleta COJOCARIU Patricia Simona LUP la de

SUBLIMINAL PERCEPTION AND EXTERNAL FACTORS IN TV COMMERCIALS

       In this paper we examined the subliminal perception of exposure to TV commercials and identified which variables cause consumers to take the buying decision. We conducted an experiment that highlighted the fact that, besides the subliminal perception of advertisements, external factors have an important role. By the descriptive method we have highlighted the mechanisms that contribute to the positive perception of the brand. Novelty is precisely the extension of this concept of subliminal advertisements in the cognitive field, in the processing of information and in behavioral change as a result of exposure to TV commercials and external factors.

Keywords: subliminal perception, external factors, TV commercials, brand perception Cuvinte cheie: percepția subliminală, factorii externi, reclamele TV, percepția mărcii

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35-59 ÎMBUNĂTĂȚIREA CITIRII ÎN PLANUL TIMPFRECVENȚĂ A SEMNALELOR FOLOSITE PENTRU A DETERMINA COEFICIENTUL DE RIGIDITATE DINAMIC

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Vasile IANCU la de

IMPROVING THE TIME-FREQUENCY READING OF THE SIGNALS USED TO DETERMINE THE DYNAMIC STIFFNESS COEFFICIENT

The objective of the paper is to describe and determine the Fourier transform to define a passage relation of a signal from the time domain to a frequency domain. The process allows the identification of frequencies but does not provide complete information about the behavior of the system, in the sense that it does not allow the interpretation of frequency evolution over time. For this reason, I propose the use of time-frequency analysis.

Keywords: reading, signal, time-frequency, stiffness Cuvinte cheie: citire, semnal, timp-frecvență, rigiditate

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35-60 INTERNETUL CA FENOMEN MEMETIC

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Ionel DUMISTRĂCEL Marilena Carmen MAHALU la de

THE INTERNET LIKE MEME PHENOMENON

This paper presents the impact of WWW technology into social media with effect in real life, talking about a virtual interrelation between the social partners. Like in biological area, were the gene is the main replicator unity, same thing in cultural area being the meme. So is natural to be developed an evolutionary theory based on the memes, following the Darwin’s evolutionary theory line.

Keywords: evolutionary theory, gene, meme, Internet, WWW Cuvinte cheie: teoria evoluționistă, genă, memă, Internet, WWW

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35-61 ASPECTE PRIVIND UTILIZAREA ENERGIEI SOLARE Partea I

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Barbu BEJAN Daniel Gheorghe LAKATOS Ioan Aurel CHERECHEȘ Ioan VIDICAN Ioana BĂLAN Mircea BEJAN la de

ASPECTS ON THE USE OF SOLAR ENERGY – Part I

Most human activities, the size, volume and quality of goods and services available to mankind are energy dependent, with energy playing a central role in human existence, being the most important resource. At present, fossil fuel carriers are the fuel of the world economy, and humanity is geared towards using abundant energy at a relatively low price. Alternative sources such as sun, wind, hydropower, wave energy, geothermal energy, bioenergy etc. it is practically not consumed, calling it renewable (alternative or unconventional sources). They produce far fewer emissions, reduce chemical, thermal, and radioactive pollution, and are available theoretically anywhere in the world. The sun is a real blessing, giving us in an hour – enough energy for all people to use it for one year. Every day, about 120,000 terawatts (TW) of electrical power is offered to us by the sun. That, while over a year, the world uses only 15 TW of energy. The paper analyzes some aspects regarding the use of solar energy: collectors, solar power stations, solar houses.

Keywords: solar energy, types of renewable energy, history, heat fluxes, energy radiation, solar collector, nuclear energy Cuvinte cheie: energie solară, tipuri de energii regenerabile, istoric, fluxuri termice, radiaţii energetice, colector solar, energie nucleară

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35-62 ASPECTE PRIVIND UTILIZAREA ENERGIEI SOLARE Partea a II-a

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Barbu BEJAN Ioan Aurel CHERECHEȘ Ioan VIDICAN Ioana BĂLAN Mircea BEJAN la de

ASPECTS ON THE USE OF SOLAR ENERGY – Part II

Most human activities, the size, volume and quality of goods and services available to mankind are energy dependent, with energy playing a central role in human existence, being the most important resource. At present, fossil fuel carriers are the fuel of the world economy, and humanity is geared towards using abundant energy at a relatively low price. Alternative sources such as sun, wind, hydropower, wave energy, geothermal energy, bioenergy etc. it is practically not consumed, calling it renewable (alternative or unconventional sources). They produce far fewer emissions, reduce chemical, thermal, and radioactive pollution, and are available theoretically anywhere in the world. The sun is a real blessing, giving us in an hour – enough energy for all people to use it for one year. Every day, about 120,000 terawatts (TW) of electrical power is offered to us by the sun. That, while over a year, the world uses only 15 TW of energy. The paper analyzes some aspects regarding the use of solar energy: collectors, solar power stations, solar houses.

Keywords: solar energy, types of renewable energy, history, heat fluxes, energy radiation, solar collector, nuclear energy Cuvinte cheie: energie solară, tipuri de energii regenerabile, istoric, fluxuri termice, radiaţii energetice, colector solar, energie nucleară

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35-63 CONSIDERAȚII ASUPRA ENERGIILOR REGENERABILE – ENERGIA SOLARĂ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Ioan Aurel CHERECHEȘ Ioan VIDICAN Mircea BEJAN la de

CONSIDERATIONS ON RENEWABLE ENERGY – SOLAR ENERGY

This paper briefly describes the main renewable energies on our planet. It also describes the solar energy used for the preparation of hot water and the heating of homes. Last but not least, the transformation of solar energy into electricity required for home appliances in a home such as telephones, lighting, television, etc.

Keywords: solar energy, electricity, hot water, solar panel Cuvinte cheie: energie solară, energie electrică, apă caldă, panou solar

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35-64 PILELE DE COMBUSTIBIL – SOLUȚIE TEHNOLOGICĂ DE COGENERARE A ENERGIEI

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Cristina Daniela HORJU-DEAC la de

FUEL FILES – TECHNOLOGICAL SOLUTION COGENERING OF ENERGY

In a simple and usual manner, the consumer covers the necessary of heat and electricity from one’s own boiler with fossil fuel, respectively by buying electric energy from system. When a request of thermal and electric energy occurs, the simultaneous production of both types of energy is more efficient, with the same type of equipment, rather than producing them separately. CHP, as a combined and simultaneously solution to produce electric and thermal energy, based on the fuel cell technology, by its energetic, economic and ecological advantages, it is part of the “clean” technologies category to produce energy.

Keywords: CHP, fuel cells, hydrogen Cuvinte cheie: cogenerare, pile de combustibil, hidrogen

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35-65 MIŞCAREA FLUIDELOR PRIN EJECTOARE. APLICAȚII ÎN CONSTRUCȚIA RACHETELOR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Constantin AVĂDANEI la de

FLUID MOVEMENT THROUGH THE EJECTORS MISSILE BUILDINGS ENGINEERING APLICATIONS

This paper presents some features of evolutionary parameters on fluid flow through the ejector gaso dynamics. Ejectors are devices with wide applicability gaso dynamics in the technical field and especially in the military.

Keywords: ejector, rocket, blending chamber, gas dynamics parameters, ejection coefficient, trained fluid, drive fluid Cuvinte cheie: ejector, rachetă, cameră de amestec, parametri gazodinamici, coeficient de ejectie, fluid antrenat, fluid de antrenare

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35-66 MEDIUL VIBRAŢIONALPRODUS DE UTILAJELE DIN INDUSTRIA ALIMENTARǍ CU ACŢIUNE ASUPRA OPERATORULUI UMAN

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Alexandra-Maria MACOVEI Mariana ARGHIR la de

VIBRATION ENVIRONMENT PRODUCED BY FOOD INDUSTRY WITH ACTION ON HUMAN OPERATOR

The grinding of cereals and other grains began to be practiced from the Neolithic, with the appearance of the first stones moths, evolving extremely rapidly in modern times to the present complex milling facilities. Milling is aimed at shredding and transforming grain and some legumes into flour and wheat. As a percentage, wheat occupies the first place in milling, the most common species being common wheat.

Key words: mill, grinding, vibration, grain, food industry Cuvinte cheie: moară , măcinare, vibrații, cereale, industrie alimentară

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35-67 PROTOTIPAREA RAPIDĂ LA SCARĂ UTILIZÂND KITUL EDUCAŢIONAL LEGO MINDSTORMS NXT

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Alexandru Cătălin MICACIU la de

RAPID PROTOTYPING SCALE USING LEGO MINDSTORMS NXT EDUCATIONAL KIT

The main objectives of the paper aim to familiarize them with the concept of rapid prototyping scale and mechatronic modules, or components LEGO Mindstorms. Theoretical aspects are presented since their encounter in practical applications. Resorting to progressive design functionality using graphical programming means NXT-G, as the mechanical structure is built to foster interdisciplinary thinking specific mechatronics.

Keywords: rapid prototyping, programming means, reconfigurability, mechatronics platform, sensor, actuator, controller Cuvinte cheie: prototipuri rapide, mijloace de programare, reconfigurabilitate, platformă mecatronică, senzor, actuator, controler

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35-68 APLICAȚII LA PROTOTIPAREA RAPIDĂ LA SCARĂ UTILIZÂND KITUL EDUCAŢIONAL LEGO MINDSTORMS NXT

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Dorin SCÂNTEIE la de

APPLICATIONS TO RAPID PROTOTYPING SCALE USING LEGO MINDSTORMS NXT EDUCATIONAL KIT

The paper is dedicated to the succinct presentation of the mechatronic concepts needed to promote innovation, creativity and interdisciplinarity. The main objectives of the paper aim to familiarize them with the concept of rapid prototyping scale and mechatronic modules, with components LEGO Mindstorms. The first application is made using the course-related instructions. In the second application, we performed a functional replica of a given structure (with a minimum of elements), without detailed installation instructions.

Keywords: rapid prototype, programming means, sensor, actuator, controller, mechatronic platform, reconfigurability Cuvinte cheie: prototip rapid, mijloace de programare, senzor, actuator, controler, platformă mecatronică, reconfigurabilitate

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35-69 ASPECTE PRIVIND REABILITAREA-MODERNIZAREA INSTALAŢIEI DE ILUMINAT DINTR-UN ATELIER DE MECANICĂ AUTO

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Bogdan PASCU Emilia DOBRIN Ştefan PAVEL la de

ASPECTS REGARDING THE REHABILITATIONMODERNIZATION OF THE LIGHTING FACILITY OF AN AUTO MECHANICAL ENGINEER

The modernization of the general and local artificial lighting system in a workshop of motor mechanics is an important element in the development of professional activity in this field.

Keyboard: General artificial lighting, local lighting, auto mechanic workshop Cuvinte cheie: Iluminat artificial general, iluminat local, atelier mecanic auto

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35-70 STUDIUL PRIVIND VERIFICAREA TANGENTEI δ A ULEIULUI ELECTROIZOLANT

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Florentina FARCAȘ Irina CHERA ANGHEL la de

STUDY ON VERIFICATION OF TANGES DATES OF INSULATING OIL

The paper presents a study regarding the determination of the dielectric loss factor of the insulating oils at the filling of the power transformers. This study is complemented by: electrical equipment for determination of tg δ, mode of execution of the test, interpretation of the results. The purpose of this case study is to evaluate the electro-insulating state in order to standardize the apparatus and the adopted measurement methods in order to obtain reproducible results and to make a decision on replacement, refurbishment by filtration, drying.

Keywords: Tanges, insulating oil, transformer, verification Cuvinte cheie: tangentă, ulei electroizolant, transformator, verificare

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35-71 STUDIUL ECHILIBRULUI ŞI STABILITĂŢII OCUPANTULUI UNEI PLATFORME ÎN MIŞCARE

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Denis-Alex ALBUŞ Mariana ARGHIR la de

STUDY OF EQILIBRIUIM AND STABILITY FOR THE PERSON ON THE PLATFORM IN MOTION

The paper contains a short study of the equilibrium and stability in motion for a person who is on the mobile platform. This study is necessary to optain the adaptiv possibility of any person if the support of walking is in monition for this was used a platform named HUBER 360 MD. Was relializes a lot of 6 tests in following steps: stability, unipodal test, walking test, stability limited test, mobility restricted test, power test.

Key words: balance study, stability study, mobile platform Cuvinte cheie: studiul echilibrului, studiul stabilității, platforma mobilă

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35-72 UNELE CONSIDERAȚII PRIVIND ACOPERIRILE METALICE ELECTROCHIMICE ȘI CHIMICE

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Ioan Aurel CHERECHEȘ Ioan VIDICAN Mircea BEJAN la de

SOME CONSIDERATIONS ON ELECTROCHEMICAL AND CHEMICAL METAL COVERINGS

This paper briefly presents electrochemical and chemical metallic coatings. Coatings of various parts with metallic layers is done especially for: Increasing the corrosion resistance, improving the appearance, increasing the superficial hardness, increasing the resistance to wear. Metallic coatings can be made: electrochemically, thermally, by spraying, chemically, by plating, amalgamation, by conversion, and by vacuum evaporation.

Keywords: metallic coatings, electrochemical coatings, chemical composition, nickel electrolytes, copper electrolytes Cuvinte cheie: acoperiri metalice, acoperiri electrochimice, compoziție chimică, electroliți de nichelare, electroliți de cuprare

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35-73 MANSARDARE VERSUS REABILITARE TERMICĂ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Mihai JĂDĂNEANŢ Mircea Paul SĂMÂNȚĂ la de

MERSARDARE VERSUS THERMAL REHABILITATION

This paper makes an analysis over the thermal rehabilitation process in Romania taking in consideration existing and future developments. Today’s national financing programs do not offer a sustainable answer to the CO2 emission reduction goal due to the fact that this is a punctual solution and offer small improvement for interior comfort of dwellings and energy savings.

Keywords: thermodynamics, economic viability, thermal rehabilitation Cuvinte cheie: termodinamică, viabilitate economică, reabilitare termică

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35-74 PROPUNERI DE MODERNIZARE A COLTERM TIMIȘOARA

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Maria HUMIȚA Mihai JĂDĂNEANȚ Nicoleta COJOCARIU Patricia Simona LUP la de

PROPOSALS FOR THE MODERNIZATION OF TIMISOARA COLTERM

In our paper we perform a SWOT analysis of the thermal energy distribution system in Romania. The case study will refer to the local district heat company of Timisoara, SC Colterm SA. For this company, its current situation will be analyzed and solution for the modernization will be proposed, directly referring to cogeneration solutions for the thermal energy, losses reduction solutions, pollution reduction solutions.

Keywords: district heating, SWOT analysis, distribution network losses, alternative energy sources Cuvinte cheie: termoficare, analiza SWOT, Colterm, pierderi din rețea, surse alternative de energie

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35-75 EFECTELE VENTILAȚIEI MECANICE LONGITUDINALE ASUPRA MIȘCĂRII FUMULUI DEGAJAT DE UN INCENDIU ÎNTR-UN TUNEL DE METROU

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Alexandru-Florin CHIOJDOIU Valeriu Nicolae PANAITESCU la de

EFFECTS OF LONGITUDINAL MECHANICAL VENTILATION ON THE FIRE SMOKE MOVEMENT IN A SUBWAY TUNNEL

The smoke and toxic gases released from a subway fire contain a number of harmful elements to the human body. Thus, long-term smoke exposure is the main cause of the large number of casualties in such an event. To protect the lives of people caught by a fire in the subway, it is necessary to use smoke evacuation systems. Thus, longitudinal mechanic ventilation systems can be used. During the use of these systems, the smoke movement inside the tunnel is characterized by phenomena such as backlayering, reverse flow or bifurcation flow.

Keywords: smoke movement, subway station, backlayering, reverse flow, bifurcation flow Cuvinte cheie: mișcarea fumului, stație de metrou, intoarcerea stratului de fum, inversarea fluxului, fluxul de bifurcatie

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35-76 ASPECTE PRIVIND MIȘCAREA FUMULUI GENERAT DE INCENDIU ÎN STAȚIILE DE METROU

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Alexandru-Florin CHIOJDOIU Valeriu Nicolae PANAITESCU la de

ASPECTS OF FIRE SMOKE MOUVEMENT IN SUBWAY STATION

The development of computer applications in the field of fluid dynamics has led to increased numerical fire simulations in underground stations, tunnels or underground structures. From a constructive point of view, the subway stations are characterized by large openings, by which they enter sufficient amounts of air, which can, in the case of a fire, either to feed with oxygen combustion or to contribute to the evacuation of smoke. When a fire is held in a subway station, the amount of smoke emitted usually floods the subway station or the tunnel (depending on the place of the fire outbreak), including the evacuation routes of passengers. This leads to reduced visibility and can cause deaths from smoke intoxication. Thus, one of the main concerns is the protection of the escape stairs from the danger represented by the smoke emitted from the fire. On the other hand, it is essential that firefighters reach as close as possible to the fire outbreak and extinguish it.

Keywords: smoke movement, subway station, experiments and numerical studies, safety evacuation Cuvinte cheie: mișcarea fumului, stație de metrou, experimente și studii numerice, evacuare în condiții de siguranță

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35-77 FACTORI POLUANȚI AI MIJLOACELOR DE TRANSPORT. MODALITĂȚI DE ATENUARE A EFECTELOR NOCIVE

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Constantin AVĂDANEI Maria-Costina AVĂDANEI la de

TRANSPORT MEDIUM POLLUTING FACTORS. PROCEDURES FOR ATTENUATION OF NOCIVE EFFECTS

The work shall be have some ways of analysis of the chemistry of internal combustion engines of the means of transport. The results obtained allow the assessment variation in time of noise nuisance concentrations in the atmosphere free.

Keywords: gas diffusion, concentration, diffusion coefficient, concentration gradients, pollutant cloud, noxious effects, finite element Cuvinte cheie: difuzia gazelor, concentraţie, coeficient de difuzie, gradienţi de concentraţie, nor poluant, efecte nocive, elemente finite

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35-78 DETERMINAREA DEBITULUI LA CENTRALELE HIDROELECTRICE DE MICĂ CĂDERE DOTATE CU TURBINE KAPLAN

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Cristian PURECE Valeriu PANAITESCU la de

DETERMINATION OF FLOW RATE AT LOW HEAD HYDRO POWER PLANTS FEATURE WITH KAPLAN TURBINES

In the paper there are presented some methods of determination of the flow rate measurements in low head hydro power plans are also presented with a series of field studies. The most commonly used method for determining the flow in convergent measurement sections is the multipoint velocity measurement with propeller type current meters. For flow rate evaluation integration of the difference between measured velocities and a known velocity distribution is recommended. One of the newest methods of flow determination in intakes is the acoustic scintillation method, a cross-correlation method. For accurate results the scintillation method must be installed downstream of trash racks. Another method that can also be adopted to measurements in low head, is method of acoustic transit measurement, but new procedures for determination weighing the individual path velocities have to be applied due to varying shape of the flow cross sections. At the end of the paper a comparative analysis is made between the methods for determining the flow rate in the convergent measuring sections

Keywords: flow rate measurement, Winter-Kennedy method, efficiency, acoustic scintillation, acoustic transit time, velocity – area Cuvinte cheie: măsuratori debitmetrice, metoda Winter-Kennedy, randament, metoda scintilaţiei acustice, metoda acustică a timpului de tranzit, metoda viteză– arie

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35-79 SISTEM MODERN DE MONITORIZARE A UNUI CURS DE APĂ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Tiberiu RUSU Tudor Andrei RUSU la de 
MODERN WATER COURSE MONITORING SYSTEM
The Romanian legislation provides for protection of the quality of surface water. This requires continuous follow-up or a certain time period of water quality of rivers and lakes. The paper presents an automatic water quality tracking system using modern methods of transmitting and interpreting remote data using computing technique.
Keywords : Surface water quality, monitoring, monitoring stations Cuvinte cheie : calitatea apelor de suprafață, monitorizare, stații de monitorizare
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35-80 OBȚINEREA APELOR ACTIVATE ȘI UTILIZAREA LOR

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Gheorghe ANDREICA Tiberiu RUSU Tudor Andrei RUSU la de

OBTAINING ACTIVATED WATER AND THEIR USE

The process of activating water is a complex process. Theoretically, it does not change the chemical composition of water, but hydrogen and oxygen ions occur, which are very active. These ions are unstable and as a result the water ionization phenomenon disappears after 48 hours. The paper shows how to obtain activated water and the areas of use.

Keywords : Water activated, water activation process, ionized water use Cuvinte cheie: apa activată, proces de activare a apei, utilizare apă
ionizată

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35-81 ANALIZA FIABILITĂŢII STAŢIEI DE TRATARE A APEI GILĂU DIN SAA “SOMEŞ” CLUJ

Această intrare a fost publicată în 2019 Volumul 35 și etichetată Lucian FECHETE Vasile Călin NEAMŢU Victor ROŞ la de

RELIABILITY ANALYSIS OF THE WATER TREATMENT PLANT IN THE “SOMEŞ” SA CLUJ
ABSTRACT
The paper analyzes the reliability of the Gilau water treatment plant within the „Someş” water distribution system in Cluj, by implementing the modern method of analysis FMECA.
Following the assessment of the reliability and critical condition of the components of the treatment plant, appropriate measures have been identified that have led to a reduction in the degree of risk and the framing of most components in the area of risk acceptance. It also highlights the high risk elements that need to be further analyzed to reduce the risk, reduce the failure rate and increase operational safety.
Keywords: Water treatment plant, reliability analysis, FMECA procedure
Cuvinte cheie: Staţia de tratare a apei, analiza fiabilităţii, utilizarea metodei AMDEC.

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35-82 CONTROLUL COROZIUNII ŞI DEPUNERILOR IN CONDUCTELE PENTRU TRANSPORTUL APEI

Această intrare a fost publicată în Volumul 35 și etichetată Lucian V. FECHETE-TUTUNARU Vasile Călin NEAMŢU Victor ROŞ la de

CONTROL OF CORROSION AND DEPOSITS IN THE WATER TRANSPORT PIPES
ABSTRACT
The paper analyzes the corrosion and deposition processes that occur as a result of the interaction between water and water distribution systems, the influence on the water quality and the reliability of the components, and the methods for controlling and reducing these phenomena. The experimental researches consisted in the application of a chemical method of corrosion control using a solution based on silicates and orthophosphates, completely water soluble and harmless for consumer. Research results have highlighted the fact that this method has significantly reduced corrosion and deposition, also ensuring the preservation of water quality during water transport via pipeline.
Keywords: corrosion control, water pipes, deposits, chemical method
Cuvinte cheie: controlul coroziunii, conducte, depuneri, metodă chimică

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34-74 TEZE DE DOCTORAT – Sinteze –

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Maria – Adriana CORDOȘ la de

CONTRIBUȚII PRIVIND STUDIUL PARAPETELOR DE PROTECȚIE LA DRUMURI – ANALIZĂ, SIMULARE, OPTIMIZARE

Dr. Ing. Maria-Adriana CORDOȘ (căs. Nechiti)
UNIVERSITATEA TEHNICĂ DIN CLUJ NAPOCA
14 decembrie 2017

Cuvinte cheie: parapete de protecție, comportarea parapetelor metalice la impact, analiza numerică şi optimizare, cercetări experimentale, etrior, deformații elastice, elemente de amortizare.

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34-73 STUDIU PRIVIND REALIZAREA UNEI NOI RUTE DE TRANSPORT PUBLIC DE CĂLĂTORI ÎN MUNICIPIUL SIBIU

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Carmen Maria PURCAR Mircea BӐDESCU la de

STUDY ON THE REALIZATION OF A NEW PUBLIC PASSENGER TRANSPORT ROUTE IN SIBIU CITY
In Sibiu several new residential areas have been built in recent years. The public transport network must be developed to include the new neighbourhoods, as long as they have been built in areas that do not have available routes nearby. Such a neighbourhood is the Magnolia residence, built in a neighbouring area of Sibiu, with a single access road and no connection to the public transport network. The paper presents the studies made to design the new route, which in the meantime has been opened and proved to be effective for the inhabitants of the Magnolia area.

Keywords: public transport network, new public transportation route, transport route efficiency, multicriterial analysis

Cuvinte cheie: reţea de transport public, rută nouă de transport public, eficienţa rutei de transport, analiza multicriterială

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34-72 STUDIU ASUPRA ÎMBUNĂTĂȚIRII PARAMETRILOR DE TRAFIC ÎNTR-O INTERSECȚIE DIN MUNICIPIUL SIBIU

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Carmen Maria PURCAR Mircea BĂDESCU la de

STUDY ON IMPROVING TRAFFIC PARAMETERS AT AN INTERSECTION IN THE CITY OF SIBIU
This paper presents different aspects that must be considered during the reconfiguration of agglomerated road junctions in Sibiu. In the first part road traffic data is highlighted along with tables with traffic speed on certain road sections. The study was made with focus on the following junctions: Milea, Semaforului, Rahovei and it analyzes the number of vehicles that cross this intersection, the traffic speed, the factors that have an influence over this feature and the measures that must be taken in order to have a continuous and lean traffic flow. The service level was determinates by calculating the road traffic capacity. The intersection was reconfigured by building an underground passage that will eliminate all collision points. Further, it was reconfigured by making a roundabout above the underground passage. The conclusions emerged from the traffic parameters calculations and how this particular junction should be reconfigured in order to reduce congestion.

Keywords: traffic congestion, traffic optimization

Cuvinte cheie: optimizarea traficului în intersecţii, sens giratoriu

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34-71 DEZVOLTAREA CERCETĂRII ȘI RAPORTĂRII EMISIILOR DE ACID FORMIC ÎN MANAGEMENTUL POLUĂRII MEDIULUI ȘI AL VIEȚII SĂNĂTOASE

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Doru Laurean BĂLDEAN Ioan Aurel CHERECHEŞ Lavinia ANDREI la de

RESEARCH AND REPORTING DEVELOPMENT OF FORMIC ACID EMISSIONS IN ENVIRONMENT POLLUTION MANAGEMENT AND LIFE HEALTH
The applied research work shows the significant aspects, instruments and technologies for analyze and reporting the formic acid emissions and few of the health effects. In the present paper are studied some aspects of a particular pollutant emission, namely the formic acid and its influence on environment. Formic acid is to be found in great amounts in the urban polluted environment, with exhaust gas emissions being considered the main source. The present paper underlines the importance of understanding each pollutant effect and multilevel correlations of influences. The aim of the study is to improve the life’s quality by developing and implementing control and reporting measures on air pollutants. This article presents the origins of formic acid in different areas. To have better air quality and more responsible people regarding the important measures that shall be taken for optimizing emission management, it is mandatory to show some reasonable arguments and methods regarding formic acid emissions control. It is very dangerous pollutant, because it has a great impact on health. The carcinogenic influence compared with other pollutants is amplified when is coupled with multiple components. The present study improves the knowledge in formic acid emissions management through technologies and impact on the environment. It is a global problem based on interdisciplinary instruments and technics.
Keywords: exhaust gases, formic acid, health, pollution, traffic
Cuvinte cheie: gaze de eşapament, acid formic, sănătate, poluare, trafic

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34-70 CONTRIBUȚII LA STUDIUL ECONOMIEI DE COMBUSTIBIL ȘI A AMPRENTEI DE CARBON ÎN CONDIȚII VARIATE DE FUNCȚIONARE PENTRU UN AUTOVEHICUL URBAN COMPACT LA UNIVERSITATEA TEHNICĂ DIN CLUJ-NAPOCA

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Adela-Ioana HODOR Doru Laurean BĂLDEAN la de

CONTRIBUTIONS TO FUEL ECONOMY AND CARBON FOOT PRINT STUDY IN VARIOUS OPERATION CONDITIONS FOR A CITY COMPACT SIZE CAR WITH AT TECHNICAL UNIVERSITY FROM CLUJ-NAPOCA
Carbon footprint and automotive pollution are some important concerns in transportation field. Main objective of the present work is to propose, develop and implement the new complex method of computer aided measurement concerning carbon footprint in urban driving condition of a city car with instruments and equipment available at Technical University from Cluj-Napoca. Specific objectives consist in experimental research of fuel consumption and economy, determination of pollutant emissions from the motor vehicle and pointing out the method’s fundamentals at Technical University of Cluj-Napoca. A new method of advanced technological research was developed during this study. The junction of computer aided processing and fuel/chemical efficiency evaluation is pointed out during the paper development. There were also highlighted the economy and carbon footprint trend lines in each particular context.
Keywords: carbon foot print, hydrocarbons, validation by experimental work
Cuvinte cheie: amprentă de carbon, hidrocarburi, validare prin parte experimentală

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34-69 CONTRIBUȚII LA CERCETAREA ȘI DEZVOLTAREA EXPERIMENTALĂ A UNOR METODE AVANSATE DE ANALIZĂ ȘI RAPORTARE A EMISIILOR DE MONOXID DE CARBON PENTRU UN MANAGEMENT OPTIMIZAT AL SĂNĂTĂȚII ȘI VIEȚII

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Doru Laurean BĂLDEAN Ioan Aurel CHERECHEŞ Lavinia ANDREI la de

CONTRIBUTIONS TO EXPERIMENTAL RESEARCH AND DEVELOPMENT OF SOME ADVANCED METHODS FOR ANALYZE AND REPORT OF THE CARBON OXIDE FOR AN OPTIMIZED MANAGEMENT OF HEALTH AND LIFE
The experimental research paper and development of the work shows the most important factors, methods and materials for the evaluation, analyze and presenting the carbon oxide emissions, concentrations and some of the potential effects. Thus in the present work are analyzed few aspects of a particular urban area that is studied with advanced methods regarding the carbon oxide emissions. This article presents the sources of carbon monoxide globally and particularly at county level, in Cluj. The best way is to eliminate the pollution completely, but this is to idealistic. So in order to improve the overall air quality and people awareness toward the important work that shall be done for optimizing modern life adapting health to the environment, present paper shows some aspects regarding CO emissions and concentrations. It is an important pollutant, so it has effects on health. The cumulative effect with other pollutants increases its negative influence, and requires compliance with established limits. The present research shows the importance of CO in pollution management through multiple effects on the living body. It is a public health problem worldwide that requires multidisciplinary solutions.
Keywords: carbon oxide, hypoxia, health, pollution, traffic
Cuvinte cheie: monoxid de carbon, hipoxie, sănătate, poluare, trafic

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