Arhive lunare: august 2015


28-33 NOUTĂŢI ÎN ACTIVITATEA DE STANDARDIZARE ÎN DOMENIILE MANAGEMENTULUI ENERGIEI ŞI ÎN DOMENIUL ASPECTELOR DE MEDIU PRIVIND PRODUSELE ELECTRICE ŞI ELECTRONICE Partea a II-a

NEWS IN ENERGY MANAGEMENT STANDARDISATION AND IN ENVIRONMENTAL STANDARDIZATION FOR ELECTRICAL AND ELECTRONIC PRODUCTS AND SYSTEMS – PART II
Energy management, energy efficiency of the industrial systems and environmental standardization for electrical and electronic products and systems are the main objectives that lead to improve security of supply and to reduce the row materials the primary energy consumption for an ecological environment. This paper presents European and International standardization activity regarding these fields.
Keywords: management, energy, electrical products, electronic products, waste, auditing, recycling, recovery, reuse, statement of product
Cuvinte cheie: management, energie, produs electric, produs electronic, deşeu, audit, reciclare, recuperare, reutilizare, declaraţie de produs

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28-32 NOUTĂŢI ÎN ACTIVITATEA DE STANDARDIZARE ÎN DOMENIILE MANAGEMENTULUI ENERGIEI ŞI ÎN DOMENIUL ASPECTELOR DE MEDIU PRIVIND PRODUSELE ELECTRICE ŞI ELECTRONICE Partea I-a

NEWS IN ENERGY MANAGEMENT STANDARDISATION AND IN ENVIRONMENTAL STANDARDIZATION FOR ELECTRICAL AND ELECTRONIC PRODUCTS AND SYSTEMS – PART I
Energy management, energy efficiency of the industrial systems and environmental standardization for electrical and electronic products and systems are the main objectives that lead to improve security of supply and to reduce the row materials the primary energy consumption for an ecological environment. This paper presents European and International standardization activity regarding these fields.
Keywords: management, energy, electrical products, electronic products, waste, auditing, recycling, recovery, reuse, statement of product
Cuvinte cheie: management, energie, produs electric, produs electronic, deşeu, audit, reciclare, recuperare, reutilizare, declaraţie de produs

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28-31 MICRO-OSCILOSCOP

MICRO-OSCILLOSCOPE
The Micro-Oscilloscopes is an application that consists into electronic board with one general purposes controller Atmega328 in conjunction with an interfacing controller Atmega8U2-MU and some peripheries. Is used too a color graphic display with possibilities to drawing multiple traces in different colours. This application is small, light, cheap and flexible tool.
Keywords: controller, display, oscilloscop, electronic board
Cuvinte cheie: controler, afişor, osciloscop, placă electronică

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28-30 PORŢI LOGICE INTEGRATE TTL

TTL LOGIC GATES INTEGRATED CIRCUITS
Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. It is called transistor–transistor logic because both the logic gating function and the amplifying function are performed by transistors (contrast with RTL and DTL). TTL is notable for being a widespread integrated circuit (IC) family used in many applications such as computers, industrial controls, test equipment and instrumentation, consumer electronics, synthesizers etc. The designation TTL is sometimes used to mean TTL-compatible logic levels, even when not associated directly with TTL integrated circuits, for example as a label on the inputs and outputs of electronic instruments. Successors to the original bipolar TTL logic often are interchangeable in function with the original circuits, but with improved speed or lower power dissipation.
Keywords: family of logic circuits, bipolar, evaluation tests, scale correction

Cuvinte cheie: familie de circuite logice, tranzistoare bipolare, probe de evaluare, barem de corectare

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28-29 VIDEOPROIECTOARE

PROJECTORS
Until a few years ago, projectors and multimedia projectors, were very expensive, very large and heavy and were used by very few. Progress in the industry, new high performance projectors, much cheaper and much smaller, can successfully design PowerPoint presentations or images HDTV, ideal for applications „home cinema”.
Any project, whatever technology is developed, has the same basic internal structure: a strong light source (lamp), an electronic video signal processing (PC, DVD etc.) and an optical system of projection. Descriptive, presents some technologies used in video projection: a chip DLP DMD; DMD chip DLP technology with three; Technology (D-ILA) Digital Direct Drive Image Light Amplifier.
Keywords: chips, projector, DLP, CRT monitor
Cuvinte cheie: cipuri, videoproiector, tehnologii DLP, tub catodic, monitor

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28-28 STOCAREA, ACCESAREA ȘI PRELUCRAREA INFORMAȚIILOR ÎN CADRUL SISTEMULUI VDR (VOYAGE DATA RECORDER)

STORAGE, ACCESS AND PROCESSING OF INFORMATION WITHIN VDR SYSTEM (VOYAGE DATA RECORDER)
Increasing maritime traffic in recent years has led to an increase in maritime accidents, especially ships collisions, some of which reported casualties between crew members.
This paper presents the methods and possibilities of storage, retrieval and processing information, format and amount of data stored and the mechanisms for their discharge within a VDR system.
In the theoretical study of storage information methods there were types of VDR systems compared by their compatibility of different storage data. This systems can be useful for investigators when they manage a maritime accident on board ships.
Keywords: VDR (Voyage Data Recorder), information, storage
Cuvinte cheie: VDR (Voyage Data Recorder), informații, stocare

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28-27 IMPLEMENTAREA CORECTĂ A HRR DE LA INCENDII DE AUTOTURISME ÎN VEDEREA SIMULĂRII COMPUTERIZATE

PROPER IMPLEMENTATION OF CAR FIRES HRR IN COMPUTER SIMULATION PURPOSE
The article presents the work of the authors concerning establishing the HRR (heat release rate) for modern cars considering the new materials used to build them. In order to do this, large scale test were studied involving small and middle size cars, in purpose to measure the burning time and determine HRR (heat release rate) using the oxygen calorimetric method. The results obtained are compared with some others similar results and become very important for knowledge and for establishing protection measures especially for close and semi-closed spaces crossed by cars.
Keywords: HRR, real scale test, simulation, oxygen calorimetric method
Cuvinte cheie : rata de eliberare a căldurii, testare la scară reală, simulare, oxygen, metodă calorimetrică

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28-26 MODULAŢIA IMPULSURILOR ÎN COD (MIC)

PULSE-CODE MODULATION (PCM)
Pulse-code modulation (PCM) is a method used to digitally represent sampled analogy signals. It is the standard form of digital audio in computers, Compact Discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analogy signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. A PCM stream has two basic properties that determine the stream’s fidelity to the original analogy signal: the sampling rate, which is the number of times per second that samples are taken; and the bit depth, which determines the number of possible digital values that can be used to represent each sample.

Keywords: sampling, telecommunications, digital transmission, analogy, pulse code, quantization, coding

Cuvinte cheie: eșantionare, telecomunicații, transmisii digitale, analogice, impulsuri în cod, cuantizare, codare

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28-25 SEMNALE MODULATE CU PURTĂTOR ARMONIC

MODULATED SIGNALS WITH HARMONC CARRIER
In electronics and telecommunications, modulation means varying some aspect of a higher frequency continuous wave carrier signal with an information-bearing modulation waveform, such as an audio signal which represents sound, or a video signal which represents images, so the carrier will „carry” the information. When it reaches its destination, the information signal is extracted from the modulated carrier by demodulation. In amplitude modulation, the amplitude or „strength” of the carrier oscillations is what is varied. For example, in AM radio communication, a continuous wave radio-frequency signal (a sinusoidal carrier wave) has its amplitude modulated by an audio waveform before transmission.

Keywords: signal modulated, carrier harmonic, information, amplitude, operation detection/recovery

Cuvinte cheie: semnal modulat, purtător armonic, informație, amplitudine, operaţie de detecţie/redresare

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28-24 MĂSURI DE REABILITARE PENTRU CLĂDIRILE DE LOCUIT COLECTIVE – MODELUL T770

REHABILITATION MEASURES FOR COLLECTIVE DWELLINGS – T770 MODEL
In this work are presented the measures needed to obtain a complete rehabilitation of collective dwellings constructed between 1978 until 1989. For a complete rehabilitation it is necessary to take into account the following measures: thermal rehabilitation of the envelope, replacement of all internal installations and equipment, upgrade of heating system, the introduction of a new staircase in order to accommodate an elevator and the integration of a multifunctional space on the terrace of the last level.
Keywords: sustainability, renewable energy, rehabilitation
Cuvinte cheie: sustenabilitate, energie regenerabilă, reabilitare

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28-23 VIABILITATEA ECONOMICĂ A MĂSURILOR DE REABILITARE COMPLETĂ ÎN SISTEM RETROFIX PENTRU CLĂDIRILE DE LOCUIT COLECTIVE

ECONOMIC VIABILITY OF RETROFIX COMPLETE
SYSTEM’S REHABILITATION MEASURES
FOR COLLECTIVE DWELLINGS
Following the RETROFIX rehabilitation measures, the comparison study between classic thermal rehabilitation and RETROFIX systems on the economic viability shows that, if you invest more money in superior efficiency system, you can obtain relatively good savings on energy.
Keywords: economic sustainability, renewable energy, rehabilitation
Cuvinte cheie: viabilitate economică, energie regenerabilă, reabilitare

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28-22 REABILITAREA STRUCTURALĂ A MONUMENTULUI ISTORIC. FIȘA DE INVENTARIERE PENTRU STRUCTURA PORTANTĂ A CASTELELOR ȘI CONACELOR – Partea a II-a –

THE REHABILITATION OF THE HISTORIC
LOAD-BEARING STRUCTURES – PART II
A rehabilitation an intervention on a load-bearing structure, which stops the deterioration of the historic load-bearing structures, maintaining their present state: the geometrical-mechanical concept, the historic materials and the traditional construction technologies (usually the interventions on a historic load-bearing structure also entail consolidation works, not only the maintaining of the present state, thus the term the conservation of a historic load-bearing structure is rarely used).
The conservation of the historic load-bearing structures is related to: all those interventions which the present technical state of the historic load-bearing structures. It is rehabilitation measure of great importance; if it is adequately carried out, it can prevent the use of the other much more extensive and expensive measures in the long run, especially in the case of constructions with relatively constant functional parameters.
Keywords: degradation, conservation and rehabilitation of historic structures, studies parament
Cuvinte cheie: degradarea, conservarea şi reabilitarea structurilor portante istorice, studii de parament

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28-21 REABILITAREA STRUCTURALĂ A MONUMENTULUI ISTORIC. FIȘA DE INVENTARIERE PENTRU STRUCTURA PORTANTĂ A CASTELELOR ȘI CONACELOR – Partea I-a

THE REHABILITATION OF THE HISTORIC
LOAD-BEARING STRUCTURES – PART I
A rehabilitation an intervention on a load-bearing structure, which stops the deterioration of the historic load-bearing structures, maintaining their present state: the geometrical-mechanical concept, the historic materials and the traditional construction technologies (usually the interventions on a historic load-bearing structure also entail consolidation works, not only the maintaining of the present state, thus the term the conservation of a historic load-bearing structure is rarely used). The conservation of the historic load-bearing structures is related to: all those interventions which the present technical state of the historic load-bearing structures. It is rehabilitation measure of great importance; if it is adequately carried out, it can prevent the use of the other much more extensive and expensive measures in the long run, especially in the case of constructions with relatively constant functional parameters.
Keywords: degradation, conservation and rehabilitation of historic structures, studies parament
Cuvinte cheie: degradarea, conservarea şi reabilitarea structurilor portante istorice, studii de parament

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28-20 STUDIU EXPERIMENTAL PENTRU DETERMINAREA CARACTERISTICILOR DE SIGURANŢĂ A STÂLPILOR ELECTRICI DE JOASĂ TENSIUNE

EXPERIMENTAL STUDY TO DETERMINE THE CHARACTERISTICS OF LOW VOLTAGE
ELECTRICITY POLES
All homes, factories, modern technology (computers, tablets, and phones) need this energy. Certainly responsibility for production and safe operation of this type of energy is very high. Lack of energy often causes panic. Our life cannot be imagined without electrical current.
This paper focuses on treating the safety of the electric poles.
Keywords: power lines, electricity poles, torsion test, bending test
Cuvinte cheie: linii electrice, stâlpi, încercare la torsiune, încercare la încovoiere

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28-19 ASPECTE CONCEPTUALE PRIVIND CREŞTEREA PERFORMANŢELOR ENERGETICE ŞI ECOLOGICE A CLĂDIRILOR DIN REPUBLICA MOLDOVA

CONCEPTUAL ASPECTS ABOUT INCREASING ENERGETICAL AND ECOLOGICAL PERFORMANCES OF BUILDINGS IN THE REPUBLIC OF MOLDOVA
In this scientific article we are talking about specific concepts that can be used for energetically and ecological performance incensement of buildings in the Republic of Moldova and also the results that we abstain doing the energetically audits for a big varieties of buildings from our country.
Keywords: energy, energetically performance, reduction potential, adaptible-dinamic
Cuvinte cheie: energie, performanţă energetică, potenţial de reducere, dinamic-adaptiv

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