BrainMap

Codruta Mihaela Varodi

Researcher - INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Researcher | Scientific reviewer

Web of Science ResearcherID: https://publons.com/researcher/4342188/codruta-varodi

Curriculum Vitae (14/10/2019)

Expertise & keywords

Modern Cascade for 13C Cryogenic Separation Call name: Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-0591 2012 - 2016

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA TEHNICA DIN CLUJ - NAPOCA

Project partners: UNIVERSITATEA TEHNICA DIN CLUJ - NAPOCA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); ELECTRONIC APRIL APARATURA ELECTRONICA SPECIALA S.R.L. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://roxana-eu.wix.com/sepcas-13c

Abstract:

The enriched carbon isotope 13C is widely used in numerous applications. One of the methods used to increase its natural concentration is through the cryogenic distillation of the carbon monoxide in high distillation columns. Very little information exists nowadays regarding the construction, principle of operation, mathematical model or control system. The present project proposes a novel method for raising the natural concentration by using three separation columns of medium height connected in a cascade fashion. To reduce the energy consumption and increase the performance of the plant, the cascade is packed in the same vacuum jacket and uses the same condenser, a construction that increases the efficiency of gas transfer between the single-columns. However, the advantage of the construction comes with serious problems in terms of monitoring and automatic control of the entire plant.

Due to the complexity of the cascade, its strong nonlinear and multivariable character, with large time constants and variable time delays, the problem of accurate modeling and control design becomes very important. The present project, apart from the technological novelty, offers significant possibilities for developing identification algorithms and closed loop control structures. The final objective of the project resides in the actual implementation of control algorithms on the three columns, as well as an overall optimal supervisory control system designed in order to increase the efficiency of the separation process.

The expected results, apart from the scientific ones (new algorithms, complete mathematical model of the cascade, novel control structures), include a functional separation cascade, completely monitored and automatically controlled using dedicated measuring equipment and dedicated control devices. The end product of the present project consists in a higher competitivity on the isotope market and a price reduction of 13C labeled compounds.

Graphene-metal nanoparticles based electrodes for detection of pharmaceutical pollutants Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0125 2011 - 2016

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare-Dezvoltare pentru Tehnologii Izotopice si Moleculare

Project partners: Institutul National de Cercetare-Dezvoltare pentru Tehnologii Izotopice si Moleculare (RO)

Affiliation: Institutul National de Cercetare-Dezvoltare pentru Tehnologii Izotopice si Moleculare (RO)

Project website: http://www.itim-cj.ro/PNCDI/idei125/index.htm

Abstract:

Graphene-based materials have recently attracted considerable interest both from the experimental and theoretical scientific communities. Graphene is a monolayer of sp2 hybridized carbon atoms which are packed into a honeycomb crystal structure. Due to their exceptional thermal and mechanical properties as well as high electrical conductivity, graphene sheets have a variety of applications in battery, field-effect transistors and electromechanical resonators. Their applicability as biosensors has now started to emerge, due to significant advantages over the classical electrodes, such as electrocatalytic effect, enhancement of mass transport and high effective surface area.

This project proposal brings up novelties through the original method used to obtain nanostructured material (graphene-metal nanoparticles composite) as well as through the way of its application (detection and degradation of pharmaceutical pollutants). This project has a multidisciplinary research area. The research activities within this project will provide: (a) new approaches for preparation of graphene-metal nanoparticles composite; (b) explanations about the intriguing properties associated with graphene-metal nanoparticles composite; (c) experimental solutions related to the assembly of metal nanoparticles on graphene platelets; (d) application of graphene-metal nanoparticles composite in electrocatalytic detection of two pharmaceutical pollutants: carbamazepine and captopril

Effects of microwave fields on essential oils and secondary metabolites of some indigene plants Call name: Projects for Young Research Teams - TE-2011 call
PN-II-RU-TE-2011-3-0283 2011 - 2014

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare - Dezvoltare pentru Tehnologii Izotopice si Moleculare, Cluj-Napoca

Project partners: Institutul National de Cercetare - Dezvoltare pentru Tehnologii Izotopice si Moleculare, Cluj-Napoca (RO)

Affiliation: Institutul National de Cercetare - Dezvoltare pentru Tehnologii Izotopice si Moleculare, Cluj-Napoca (RO)

Project website: http://www.itim-cj.ro/PNCDI/ru76/index.html

Abstract:

The seasoning plants (spices) are ingredients that, added to food and drinks give the flavor, taste and color, without having nutritional value. Due to their uses in medicine and cosmetics, it is important to know their composition and how it is affected by external factors (electromagnetic radiation, drought, and other types of stress). Among these plants, we selected three for our study: Anethum graveolens, Petroselinum crispum and Apium graveolens, rich in volatile oils and antioxidants (especially vitamin C).

The general objective of the project is the effects determination of microwave fields on volatile oils, vitamin C and secondary metabolites of some indigene plants. Within this objective will consider the following specific objectives: 1. Preparation of system for microwave irradiation of the plants considered for the study; 2. Selection of extraction methods for bioactive compounds analyzed from the seasoning plants considered for the study; 3. Monitoring changes of vitamin C amount from the irradiated plants compared to the reference plants; 4. Monitoring of the essential oils composition changes, from the irradiated plants compared to the reference plants; 5. Tracking BVOC variation in microwave stressed plants with different frequencies and powers; 6. Monitoring changes occurred in BVOC from the irradiated plants compared to the reference plants; 7. Concluding of the chemical and structural changes from irradiated plants.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects