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Recent submissions

2021: Recent submissions

Now showing items 21-40 of 130

Influence of Double Feedback on Stationary States of Quantum Dots Lasers

POSTICA, Vasile; SCHÜTT, F.; LUPAN, C.; KRÜGER, H.; ADELUNG, R.; LUPAN, O. (Springer, Cham, 2022)

In this work, the individual hexagonal boron nitride (h-BN) microtubular structures with different diameter (ranging from ≈0.2 to ≈2.5 μm) and a wall thickness below 25 nm were investigated for the first time by integration ...
Influence of Double Feedback on Stationary States of Quantum Dots Lasers

GRIGORIEV, E.; RUSU, S.; TRONCIU, V. (Springer, Cham, 2022)

We report in this paper the results of theoretical investigations of the influence of double feedback on the stationary states of quantum dots lasers. The Bloch equations model was used to simulate and analyze these states. ...
Silver Nanoparticles as Stimulators in Biotechnology of Porphyridium Cruentum

CEPOI, L.; RUDI, L.; CHIRIAC, T.; VALUTA, A.; ZINICOVSCAIA, I.; MISCU, V.; RUDIC, V. (Universitatea Tehnică a Moldovei, 2021)

Silver nanoparticles (AgNPs) are one of the most actively used nanomaterials. Therefore, their release into the environment becomes inevitable. Consequently, studies regarding the harmful effects of AgNPs towards organisms ...
Study the Effect of UVC Radiation on Specific Regions of the SARS-CoV-2 Coronavirus Genome Encoding the Synthesis of Structural Proteins

NICA, Iu.; POGORELISCHI, L.; DIMITRIU, S. V.; PEEV, L.; SIDORENKO, A. (Universitatea Tehnică a Moldovei, 2021)

The COVID19 pandemic that terrorizes the world with terrible aggression calls for the urgent finding of tools that would quickly inactivate viruses in the environment to reduce the chance of aerosol infection and contact ...
Biomedical Sensors based on Micro- and Nanotechnology

PODLEPETSKY, B.I. (Universitatea Tehnică a Moldovei, 2021)

This review рареr briefly analyzes the history, development trends, current state of the sensors’ developments based on micro-and nanotechnologies for medical and biological research. The classification of such sensors ...
Organic Crystals of p - type TTT2I3 and n - type TTT(TCNQ)2 as Prospective Thermoelectric Materials for Biomedical Sensors

SANDULEAC, I.I.; ANDRONIC, S.C. (Universitatea Tehnică a Moldovei, 2021)

In this paper, the prospective of using organic nanostructured crystals of p – type TTT2I3 (tetrathiotetracene-iodide) and n – type TTT(TCNQ)2 (tetrathiotetracene-iodidetetracyanoquinodimethan) as components of thermoelectric ...
Use of Fractional-Quadratic Approximation Invariant of Nonlinear Characteristic of Magnetoelectric Sensor

PENIN, A.; SIDORENKO, A. (Universitatea Tehnică a Moldovei, 2021)

An idea of a sensor of direct magnetic fields using the magnetoelectric effect in a planar ferromagnetic-piezoelectric composite structure is described. It is shown that introduction in the sensor circuit a negative ...
Nanostructuring of Protein Systems by Electroactivation

VRABIE, E.G.; BOLOGA, M.K.; PALADII, I.V.; VRABIE, V.G.; POLICARPOV, A.A.; GONCIARUC, V.P.; SPRINCEAN, C.Gh.; STEPURINA, T.G. (Universitatea Tehnică a Moldovei, 2021)

A possibility of nanostructuring protein systems is demonstrated based on whey electroactivation. Whey as a raw material is not only a valuable by-product available in most of the cheese-production industry areas, it is ...
Involvement of Contact and Surface Phenomena in Nanolayered Amorphous Te Films for Toxic gas Detection at Room Temperature

TSIULYANU, D.; MOCREAC, O.; BRANISTE, T. (Universitatea Tehnică a Moldovei, 2021)

A fast responding NO2 sensitive device operating at room temperature has been realized using the nanolayered amorphous Te (a-Te) grown onto insulating wafer of silicon dioxide (SiO2) between Pt contact electrodes with ...
Protective Box for Aerosol Generation Procedures with High Risk of SARS-CoV-2 Infection

RAILEAN, S.; ŞONTEA, V.; ABABII, N.; GLADIS, V.; VERJBITCHII, V.; BALAN, M.; VIȘANU, V.; RATA, V.; ROTARU, M.; BERNIC, V.; TRAPEZNICOV, P. (Universitatea Tehnică a Moldovei, 2021)

The coronavirus COVID-19 pandemic has highlighted the widespread necessity for adequate personal protective equipment for healthcare providers, including during the aerosol-generating procedure of tracheal intubation. ...
Analysis of Melanin Properties in Radio-frequency Range Based on Distribution of Relaxation Times

ABRAMOV, P.A.; ZHUKOV, S.S.; BEDRAN, Z.V.; GORSHUNOV, B. P.; MOTOVILOV, K.A. (Universitatea Tehnică a Moldovei, 2021)

Being a family of biodegradable materials with natural origin, melanins are widely used for development of model bioelectronic devices. However, the mechanism of their electric conductivity is still a matter of discussions. ...
PEG-ylated Phenothiazine Derivatives. Synthesis and Antitumor Activity

CIBOTARU, S.; NASTASA, V.; SANDU, A.I.; BOSTANARU, A.C.; MARES, M.; MARIN, L. (Universitatea Tehnică a Moldovei, 2021)

Phenothiazine based compounds are well known for their successful application in biomedicine. Used for many years for the synthesis of many classes of drugs, in the last two decades the phenothiazine derivatives proved ...
Microbiological Decontamination of Air and Surfaces due to Nanosecond Discharges

BOSNEAGA, Iu.; BOLOGA, M. K.; AGARWAL, E. (Universitatea Tehnică a Moldovei, 2021)

Presented observational data indicate that a significant number of infections with the SARS-CoV-2 coronavirus occur by air without direct contact with the source, in addition, in a tangibly long time interval. It is ...
The Effects of Terahertz Radiation on the Development of Biological Organisms I: Wheat Seeds

BUCUR-PORTASE, R. C. (Universitatea Tehnică a Moldovei, 2021)

The uses of Terahertz (THz) radiation are broad, ranging from scanning packages to identifying various chemical compounds. Its effects on living matter have been neglect. The scientific literature available to date ...
Nanotechnology and Nonproliferation

BUZDUGAN, A.; RAILEAN, S.; BUZDUGAN, Au. (Universitatea Tehnică a Moldovei, 2021)

Nanotechnology has demonstrated performance in top technologies of the 50s-60s of the XX- century such as nuclear, cosmic and other domain. Although the first results were promising, the crucial point for further development ...
Sorbents Obtained From Cellulose-Containing Waste for Water Purification

MARSAGISHVILI, T.; TATISHVILI, G.; ANANIASHVILI, N.; TSKHAKAIA, E.; GIORGADZE, N.; GACHECHILADZE, M.; MATCHAVARIANI, M.; KVINIKADZE, L. (Universitatea Tehnică a Moldovei, 2021)

As a rule, ions of some heavy metals are always found in natural and waste waters. The purpose of this work was to study the sorption properties of carbon material obtained from secondary raw materials (hazelnut and ...
Measuring and Information System for Monitoring Microwave Contamination of Urban Environment

SIMAKOV, A.; VODOKHLEBOV, I.; BOCHAROV, Y.; BUTUZOV, V.; SIMAKOV, M. (Universitatea Tehnică a Moldovei, 2021)

There is a lot of data confirming the effect of microwave radiation on psychophysiology and human health. The paper considers a method and a measuring and information system for dynamic monitoring of microwave environmental ...
Impact of the Covid-19 Pandemic on the Use of Microsoft 365 and Learning Outcomes at the Technical University of Moldova

ȚURCANU, D.; SIMINIUC, R.; BOSTAN, V.; ȚURCANU, T. (Universitatea Tehnică a Moldovei, 2021)

Faced with the restrictions imposed by the Covid-19 pandemic, universities, as providers of higher education, have been forced to provide their students exclusively through a digital interface. For this, the institutions ...
Preclinical Stage of Building a Machine Learning System for Sepsis Prediction: A Comparative Study of Four Algorithms

IAPĂSCURTĂ, V.; BELÎI, A. (Universitatea Tehnică a Moldovei, 2021)

From the point of view of data engineering, the application of machine learning methods in the case of data represented by multivariate multimodal time series is a difficult task, but with a possible practical potential, ...
Investigation of Dynamical Properties of a Laser with Incorporated DBR Section Under the Influence of External Optical Feedback

GRIGORIEV, E.; TRONCIU, V. (Universitatea Tehnică a Moldovei, 2021)

We report in this paper the results of theoretical investigations of the dynamical properties of a laser with incorporated Distributed Brag Reflector (DBR) section under the influence of external optical feedback. The ...

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