Facultatea Electronică şi Telecomunicaţii: Recent submissions

Now showing items 821-840 of 1268

Sistemul de monitorizare a temperaturii

ZAVRAJNYI, Serghei; TIRON, Iurie; GRIŢCO, Andrei; STALBE, Andrei; NICA, Iurie (Tehnica UTM, 2012)

The multichannel temperature probe for studying the behavior of thermal fields is described in this article. As temperature sensors used Chromel - Alumel thermocouples. Thermoelectric each thermocouple (from 11mV to 13mV) ...
Contributions to the development of acid battery charging regulator from small sizewind turbinewith MPPT function

GANGAN, Sergiu (Tehnica UTM, 2012)

Wind energy at global level is developing rapidly especially in the countries where energy resources are limited or even missing and which energetically depend on another country and are interested to fully capitalize ...
Analiza factorilor de cost în spaţiul de proiectare a sistemelor încorporate

SECRIERU, Vitalie; ZAPOROJAN, Sergiu; DOROGAN, Valerian (Tehnica UTM, 2012)

Architectures can be evaluated by their cost and performance. While there are computer designs where costs tend to be ignored, specifically supercomputers, cost-sensitive designs are of growing importance. Embedded systems ...
Electrical conductivity and thermoelectric power in crystals of tetrathiotetracene iodide

CASIAN, Anatolie; BALMUS, Ion; DUSCIAC, Viorel (Technical University of Moldova, 2012)

Temperature dependences of electrical conductivity and of thermoelectric power in quasi-one-dimensional organic crystals of tetrathiotetracene iodide were calculated in a large temperature interval. Two electron-phonon ...
Dispozitiv şi procedură de hipertermie locală în țesut biologic

NICA, Iurie; ZAVRAJNÎI, Serghei; GRIŢCO, Andrei; TIRON, Iurie; MUSTEAŢĂ, Vladimir; STALBE, Andrei (Tehnica UTM, 2012)

As is well known, on heating up the tumor over 43 – 440C the tumor cells dies, whereas healthy tissues cells remain alive up to 500C. We propose local overheating malignant morbid growth, with infrared radiation from a ...
VCSEL measurements and characterization for gas sensing

VIERU, T.; DOROGAN, A.; VIERU, S.; DOROGAN, V. (Technical University of Moldova, 2012)

The paper presents the results of measurements and analysis of parameters and characteristics of Vertical Cavity Surface Emitting Laser (VCSEL) Diode to use in gas detectors on the basis of the tunable diode laser spectroscopy ...
Emergent multifunctional nanoelectronics based on oxide compounds and topological insulator materials

KANTSER, Valeriu (Technical University of Moldova, 2012)

With the recent development in material growth method including molecular beam epitaxy, pulsed laser deposition and metalorganic chemical vapor deposition, atomically engineered oxide and other materials like topological ...
Elemente de organizare şi funcţionare a sistemelor încorporate

SECRIERU, Vitalie; ZAPOROJAN, Sergiu; GÎSCĂ, Vasile (Tehnica UTM, 2012)

Today’s products represent a new generation of capabilities that fuse together sensors, actuators and electronics. In fact, recent studies show that 2/3rds of manufacturers include embedded systems in their products. ...
Tratamentul cavităţilor infectate cu iradiere fotonică

NICA, Iurie; POGORELISCHI, Leonid; MAXIMOV, Eugen; CEBOTARI, Valeriu; IAVORSCHI, Constantin; BOLOGA, Vitalie; NAHABA, Vladimir; ŢÎMBALARI, Emilia (Tehnica UTM, 2012)

A device for a procedure for preoperatively preparing patients with progressive drug-resistant fiber-cavernous tuberculosis also for treatment of other diseases, as lungs and other organs is developed. The device performed ...
Фазовый контроль двухфотонной оптической нутации в системе биэкситонов в полупроводниках с учётом упругих межчастичных взаимодействий

ХАДЖИ, П. И.; ВАСИЛЬЕВ, В. В. (Technical University of Moldova, 2012)

The peculiarities of two-photon nutation in a system of coherent biexcitons in CuCI semiconductors are considered taking into account the elastic biexciton–biexciton interaction. It is shown that depending on the system ...
Nonlinear cooperative steady states of fröhlich phonons in biological objects

CIOBANU, Nellu; TRONCIU, V.Z.; RUSU, Dragos; ROTARU, Anatol (Tehnica UTM, 2012)

Nonlinear cooperative stationary phenomena are studied at the interaction of Bose-condensed phonons with millimeter electromagnetic radiation in biological media. The real and imaginary parts of dielectric susceptibility ...
Исследование влияния кислорода на параметры ближнего порядка структур Ge2Sb2Te5

ВИХРОВ, Сергей; ВОРОБЬЕВ, Юрий; МИТРОФАНОВ, Кирилл (Technical University of Moldova, 2012)

The principle of the transition between crystalline and amorphous phases of Ge2Sb2Te5 underlies the functioning of common use electronic devices such as CDs and DVDs. The most important feature of Ge2Sb2Te5 chalcogenide ...
Интерференция обыкновенных и необыкновенных световых волн в кристаллах AgAsS2

НЕМЕРЕНКО, Лукреция; МАШНИК, Алиса; ПАРВАН, Владимир; ИВАНЕНКО, Юрий; МИРОВСКИЙ, Владимир (Technical University of Moldova, 2012)

The anisotropy of the interference transmission spectra of crystals AgAsS2 are study. Refractive indices n II and n ∟ for the polarizations ЕIIс and Е∟с and the spectral dependence of the difference refractive index ∆n = ...
Influence of ultraviolet radiation on surface electric potential of the p(vdf-trfe 70:30) films deposited on glass substrate

LYAKSA, Edgar; ROMANOVA, Marina; KATASHEV, Alexei; DEKHTYAR, Yuri (Tehnica UTM, 2012)

Ultraviolet (UV) radiation is able to cause biological changes at the cellular and molecular level. These biological structures are nano- and micro-sized, so to study the effect of UV radiation, detector is required, ...
Electrowetting on dielectric for biosample handling using ZNO as hydrophobic microchannel coverage

SIRBU, Lilian; GHIMP, Lidia; MÜLLER, Raluca; VOICU, Rodica; VODĂ, Irina; GANGAN, Sergiu; TIGINYANU, Ion (Tehnica UTM, 2012)

In this paper, we will review the electrowetting on dielectric (EWOD) principles applied to microfluidic devices. EWOD is the mechanism that can control wettability of liquids on solid surface using electric potential. ...
Квантовые осцилляции магнетосопротивления в нитях BI с тригональной ориентацией при упругой деформации растяжения

НИКОЛАЕВА, Альбина; КОНОПКО, Леонид; ЦУРКАН, Анна; КОТОМАН, Татьяна; ИСТРАТИЙ, Евгений (Technical University of Moldova, 2012)

For the first time glass-insulated wires of Bi with d ≤ 1 μm and trigonal orientation were prepared. Samples crystallographic orientation was determined by means of X-ray diffraction method and was confirmed by angle ...
Изменение кристаллографической ориентации нанонитей Bi с помощью перекристаллизации в сильном магнитном поле

КОНОПКО, Леонид; НИКОЛАЕВА, Албина; ЦУРКАН, Анна; БУРЧАКОВ, Леонид (Technical University of Moldova, 2012)

Work deals with the important and actual scientific problem of making of trigonal nanowires of Bi. We have developed the new tehnology for recrystallization of Bi nanowires in strong magnetic fields.
Магнито-термоэлектрические свойства нитей Bi-15at%Sb в области 77-300К

БОДЮЛ, Павел; ПОПОВ, Иван; МОЛОШНИК, Евгений; СТИЧ, Иван; КУРОШУ, Николай; РАСТЕГАЕВ, Геннадий (Technical University of Moldova, 2012)

The authors report results of magneto- thermoelectric investigation of single-crystal semiconductor Bi-15at%Sb wires in glass cover with diameter ranging from 500 nm to 1.1 μm. The orientation of the samples was controlled ...
Сеть науки и образования как инраструктура для Grid – приложений

СЕКРИЕРУ, Г.В.; БОГАТЕНКОВ, П.П.; ИЛЬЮХА, Н.П. (Tehnica UTM, 2012)

Modern GRID-system have been widely developed and the creation of applications in GRID - infrastructure is a critical factor for determining progress in many areas, which require the use of intensive data processing and ...
Модификация системы RSA на основе идентификаторов для защиты e-mail

ОЛЕЙНИК, Вячеслав (Tehnica UTM, 2012)

In this work the Identity Base Encryption (IBE) scheme, which is a public-key cryptosystem where E-mail address is a valid public key, is described. The approach based on the idea of the known cryptosystem - RSA modification ...

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