STUDIES
* Graduated from the Faculty of Mechanics – Chemical Equipment Section, Polytechnic Institute of Bucharest (1977).
SCIENTIFIC DITTLES
* 1993, PhD in Thermoenergetics, obtained at the Faculty of Energetics, Polytechnic University of Bucharest (supervised by Prof. Dr. Eng. I. Gh. Carabogdan, and after his death, Prof. Dr. Eng. V. Athanasovici);
* 2011, Corresponding Member of the Romanian Academy;
* 2017, Full Member of the Romanian Academy.
TEACHING ACTIVITY
He was a researcher and teacher at the Polytechnic University of Bucharest, starting in 1982 until his retirement in 2019, having over time the position of assistant, lecturer, associate professor and professor. He has taught courses at undergraduate, master’s and doctoral levels in the field of technical thermodynamics (Thermotechnics and thermal machines, Heat transfer, Optimal control in thermal process engineering, Advanced transfer processes, Advanced thermodynamics) and in the field of new energy sources. He has coordinated student scientific research activities. He has been part of master’s and doctoral committees at the Politehnica University of Bucharest and at other universities in the country (Technical University of Construction in Bucharest, Transilvania University of Brașov) and abroad (Cairo University, University of South Australia). He has published books, manuals, collections and didactic guidance.
SCIENTIFIC RESEARCH ACTIVITY
The main research directions are the following:
a. Study of the metal-semiconductor contact
• highlighting a memory effect at the Te-Ag contact,
• developing a generalized Langevin equation in the sense of Haken for the evolution of the physical component of the Te-Ag contact.
• creating the first metal-semiconductor photovoltaic cells in the country (1973-1977).
Significant works:
Milea-Popa M., Oancea C., Bădescu V., Zamfir E., Cristea P., et al., On stress-relief appearance conditions in Te-Ag and Te-Bi thin film systems, chapter in: The physics of Selenium and Tellurium, Springer Verlag, Berlin, 1979.
Bădescu M.V., Fara V.L., A kinetic model of Cu-CdS contact I. Rates equations method, Rev Roum Phys, 25/8 (1980), p. 943-952.
Bădescu M.V., Fara V.L., A kinetic model of Cu-CdS contact. II. Master’s equation method. Rev Roum Phys, 25/8 (1980), p. 953-962.
b. Study of the conversion of solar energy into thermal energy using flat plate solar collectors
• The study of the optimal interconnection of air solar collectors for the case of solar installations with a given capture area and a specified total air flow rate was an important research topic.
• the influence of the stability of the radiative regime on the performance of thermal collectors, operating in closed or open loop systems;
• the creation of the first air solar collectors in the country and of a pneumatic heliometer, with international priority (1975-1977);
• the creation of the first Romanian pilot station for drying fruits and vegetables using solar energy (1978-1980).
Significant works:
Zamfir E., Oancea C., Bădescu V., Method of using meteorological data to evaluate the performance of a flat plate solar collector during days with different cloud amount. Solar Energy in Romania, 2/1-2 (1993), p. 105-108.
Zamfir E., Oancea C., Bădescu V., Cloud cover influence on long-term performances of flat plate solar collectors. Renewable Energy, 4/3 (1994), p. 339-347.
c. Study of solar energy availability and its structure
• establishment of solar radiation calculation models based on meteorological data;
• definition of typical weather.
• study of the transmittance of semitransparent and absorbing materials depending on the radiation structure;
• study of the influence of the critical level and systematization of critical levels in linear and nonlinear systems.
• solar radiation outside the atmosphere, as well as
• direct or diffuse solar radiation at Earth level.
• satellite methods, using data provided online by the METEOSAT satellite network;
• regional atmospheric circulation models (WRF);
• local models (ARIMA, General Additive Models).
Significant works:
Badescu V., Different strategies for maximum solar radiation collection on Mars surface, Acta Astronautica, 43/7-8 (1998), p. 409-421.
Bădescu V., A new kind of cloudy sky model to compute instantaneous values of diffuse and global solar irradiance, Theor Appl Climatology, 72/1-2 (2002), p. 127-136.
Paulescu M., Bădescu V., New approach to measure the stability of the solar radiative regime, Theor Appl Climatol, 103(2011), p. 459-470; DOI: 10.1007/s00704-010-0312-9.
Badescu V., Dumitrescu A., The CMSAF hourly solar irradiance database (Product CM54). Accuracy and bias corrections with illustrations for Romania (South-Eastern Europe), Journal of Atmospheric and Solar-Terrestrial Physics, 93(2013), p. 100-109; DOI: 10.1016/j.jastp.2012.12.001
Brabec M., Paulescu M., Bădescu V., Generalized additive models for nowcasting cloud shading, Solar Energy, 101(2014), p. 272-282; DOI: 10.1016/j.solener.2014.01.005.
Brabec M., Bădescu V., Paulescu M., Cloud shade by dynamic logistic modeling, Journal of Applied Statistics, 41/6 (2014), p. 1174-1188; DOI: 10.1080/02664763. 2013.862221.
Dumitrescu A., Gueymard C.A., Bădescu V., Reconstruction of historical aerosol optical depth time series over Romania during summertime, Int. J. Climatol., 37(2017), p. 4720-4732; DOI: 10.1002/joc.5118.
d. Study of solar energy conversion using heliostat fields
• He contributed to the realization of the first heliostats in the country (1978).
• He obtained for the first time in 1982 the distribution function of heliostat orientation errors, using integral geometry methods and geometric probabilities. The distribution is not of the Gaussian type and agrees very well with the empirical distributions used in practice. It characterizes the functioning of any orientation system.
Significant works:
Badescu V., The influence of certain astronomical and constructive parameters on the concentration of solar radiation with plane heliostate fields, Rev Phys Appl., 20(1985), p. 711-733.
Badescu V., Different tracking error distributions and their effects on the long-term performances of parabolic dish solar power systems, Int J Solar Energy., 14(1994), p. 203-216.
Bădescu V., Theoretical derivation of heliostat tracking errors distribution, Sol. Energy, 82(2008), pp. 1192-1197, DOI:10.1016/j.solener.2008.05.013.
e. Finite element modeling of mechanical and thermal stresses to which thermal energy equipment is subjected
Significant works:
Bădescu V., Bratianu C., Observations on the mechanical stress state of linear sections of thermal pipes, Bul. Inst. Polit. Bucharest – Energetica series, Volume XLVI-XLVII (1984-1985), p. 163-168.
f. Study of solar radiation conversion at high temperature
Significant works:
Bădescu V., The theoretical maximum efficiency of solar converters with and without concentration, Int J Energy, 14/4 (1989), p. 237-239.
Bădescu V., Optimum operation of a solar converter in combination with a Stirling or Ericsson heat engine, Int J Energy, 17/6 (1992), p. 601-607.
Bădescu V., A study concerning the opportunity of solar power generation in south-east Romania (Dobrogea), Energy Conv Mgmt, 33/11 (1992), p. 971-982.
Badescu V., Popescu G., Feidt M., Model of optimized solar heat engine operating on Mars, Energy Conv Mngmnt, 40 (1999), p. 1713-1721.
Badescu V., Popescu G., Feidt M., Simulation of a Martian solar thermal power plant: diurnal operation and power-efficiency correlations, J of the British Interplanetary Society, 53/3-4 (2000), p. 131-144.
Bădescu V., Popescu G., Feidt M., Design and optimisation of a combination solar collector-thermal engine operating on Mars, Renewable Energy, 21(2000), p. 1-22.
g. Study of photovoltaic conversion systems
• statistical substantiation of photothermal and photovoltaic conversion using Chapman-Enskog-type techniques;
• geometric factors, Auger analysis, impact ionizations.
• Study of the functioning of solar cells on Mars, by accurately simulating the meteorological and climatic conditions, also falls under this chapter, as an application.
• Development in 2007 of a complete theory of up- and down-conversion processes for third-generation solar cells.
• local models, based on Box-Jenkins theories (ARIMA type);
• fuzzy models;
• artificial intelligence models;
• general additive models.
Significant works:
Bădescu V., Landsberg P.T., Theory of some effects of photon recycling in semiconductors, Semicond Sci Technol, 8(1993), p. 1267-1276.
Bădescu V., Landsberg P.T., Statistical thermodynamic foundation for photovoltaic and photothermal conversion. I. Theory, J Appl Phys, 78/4 (1995), pp. 2782-2792.
Bădescu V., Landsberg P.T., Statistical thermodynamic foundation for photovoltaic and photothermal conversion. II. Application to photovoltaic conversion, J Appl Phys, 78/4 (1995), pp. 2793-2802.
Bădescu V., Landsberg P.T., Influence of photon recycling on solar cell efficiency, Semicond Sci Technol, 12(1997), p. 1491-1497.
Bădescu V., Simulation of solar cells utilization on the surface of Mars, Acta Astronautica, 43/9-10 (1998), p. 443-453.
Landsberg P.T., Bădescu V., Solar cell thermodynamics including multiple impact ionization and concentration of radiation, J Phys D: Appl Phys, 35(2002), p. 1236-1240.
h. Radiation physics
• studies on the conversion of partially polarized radiation and studies on the thermodynamics of diluted radiation;
• development of a theory that highlights the fact that radiative transfer is of a different nature from heat transfer;
• development of a general theory for the available mechanical work of radiation sources, which includes the Petela-Landsberg-Press theory as a particular case. This theory was extended and particularized in the period 2009-2015 for different cases of practical interest.
Significant works:
Bădescu V., On the thermodynamics of the conversion of diluted radiation, J Phys D: Appl Phys, 23(1990), p. 289-292.
Bădescu V., Maximum conversion efficiency for the utilization of multiple scattered solar radiation, J Phys D: Appl Phys, 24(1991), p. 1882-1885.
Bădescu V., Accurate upper bound for the efficiency of converting solar energy into work, J Phys D: Appl Phys, 31(1998), p. 820-825.
Bădescu V., Accurate upper bounds for the conversion efficiency of black-body radiation energy into work, Phys Lett A, 244(1998), p. 31-34.
Bădescu V., Maximum reversible work extraction from a blackbody radiation reservoir. A way to close the old controversy, EPL, 109(2015), p. 40008; DOI: 10.1209/0295-5075/109/40008.
Bădescu V., How much work can be extracted from diluted solar radiation? Solar Energy, 170(2018), pp. 1095-1100; DOI: 10.1016/j.solener.2018.05.094. Bădescu V., Upper bounds for the conversion efficiency of diluted blackbody radiation energy into work, Journal of Non-Equilibrium Thermodynamics, 43/4 (2018), p. 273-287; DOI: 10.1515/jnet-2018-0004.
i. Statistical Physics and Theoretical Thermodynamics
• studies on the statistics of coupled photon and fermion systems, analysis of transport processes using Boltzmann equations and study of the photon recycling effect in semiconductors;
• contributions to the statistical thermodynamics of quantum wells and non-extensive thermodynamics;
• development of the first model of the finite-time statistical dynamics (1996);
• development of the tau oscillator model, the first example of a statistically deformed non-extensive thermodynamic system constructed ab initio (directly from the principles of statistical quantum mechanics) (2002);
• development of the first constructal theory of economic processes (2000);
• demonstration of the possibility of the existence of life conditions on wandering planets (2011).
Significant works:
Bădescu V., Time-dependent and steady state statistics of photons at non-zero chemical potential, J Phys C: Cond Matter, 3(1991), p. 6509-6521.
Bădescu V., Momirlan M., Statistics of TiO2 crystal growth in air on a metallic surface hated at temperatures in the range 900–1100 C, J Crystal Growth, 169(1996), p. 309-316.
Bădescu V., Landsberg P.T., Statistical thermodynamics of bosons in one – and two – level quantum wells, Phys Stat. Solids (b), 200(1997), pp. 99-112.
Badescu V., Andresen B., Probabilistic finite time thermodynamics: a chemically driven engine, J Non-Equilib Thermodyn, 21(1996), p. 291-306.
Bădescu V., Simple upper bound efficiencies for endoreversible conversion of thermal radiation, J Non-Equilib Thermodyn, 24(1999), p. 196-202.
Bejan A., Bădescu V., De Vos A., Constructal theory of economics structure generation in space and time, Energy Conversion and Management, 41(2000), p. 1429-1451.
Badescu V., Landsberg P.T., The tau-oscillator, J Phys A, 35(2002), p. 591-595.
Badescu V., Landsberg P.T., Canonical ensemble with temperature limitation, Foundations of Physics Letters, 18/3 (2005), p. 205-226.
Badescu V., Accurate upper bound for heating gain factor, Europhysics Letters, 76/4 (2006), p. 568-574.
Badescu V., Isvoranu, D., Classical statistical thermodynamics approach for the exergy of nuclear radiation, Europhys Lett, 80(2007), p. 30003; DOI: 10.1209/0295-5075/80/30003.
Badescu V., Physical temperature and pressure in fully nonextensive statistical thermodynamics, Advances in Complex Systems, 11/1 (2008), p. 43-54.
Muschik W., Badescu V., Irreversible Jaynes engine for more efficient heating, Journal of Non-Equilibrium Thermodynamics, 33/4 (2008), p. 297-306.
Badescu V., Landsberg P.T., Statistically q-deformed and tau-deformed systems, Complexity, 15/3 (2010), p. 19-25; DOI: 10.1002/cplx.20280.
Bădescu V., Thermodynamic constraints for life based on non-aqueous polar solvents on free-floating planets, Origins of Life and Evolution of Biospheres, 41(2011), p. 73-99; DOI: 10.1007/s11084-010-9216-z.
Bădescu V., Sub-brown dwarfs as seats of life based on non-polar solvents: Thermodynamic restrictions, Planetary and Space Science, 58(2010), p. 1650-1659; DOI: 10.1016/j.pss.2010.08.012.
Bădescu V., Constraints on the free-floating planets supporting aqueous life, Acta Astronautica, 69(2011), p. 788-808; DOI: 10.1016/ j.actaastro.2011.06.001.
Bădescu V., Free-floating planets as potential seats for aqueous and non-aqueous life, Icarus, 216(2011), p. 485-491; DOI: 10.1016/ j.icarus.2011.09.013.
Badescu V., Lost available work and entropy generation: Heat versus radiation reservoirs, J. Non-Equilib. Thermodyn, 38(2013), pp. 313-333; DOI: 10.1515/jnetdy-2013-0017.
Bădescu V., Is Carnot efficiency the upper bound for work extraction from thermal reservoirs?, EPL, 10(2014), p. 18006; DOI: 10.1209/0295-5075/106/18006.
Bădescu V., How much work can be extracted from a radiation reservoir?, Physica A, 410(2014), p. 110-119; DOI: 10.1016/j.physa.2014.05.024.
Badescu V., Modeling thermodynamic distance, curvature and fluctuations. A geometric approach, Understanding Complex System series, Springer International Publishing Switzerland, 2016, DOI: 10.1007/978-3-319-33789-0, ISBN: 978-3-319-33788-3, ISBN: 978-3-319-33789-0 (eBook), 202 p.
j. Optimal control in thermal process engineering
• optimal control of elementary heat transfer mechanisms;
• optimal control of heat exchanger operation;
• thermal energy storage systems;
• optimization of solar energy capture installations;
• self-ignition heat engines;
• Daniel type heat engines (with cam);
• ribs used to enhance heat transfer.
Significant works:
Bădescu V., Optimal paths for minimizing lost available work during usual heat transfer processes, J Non-Equilibrium Thermodynamics, 29(2004), p. 53-73.
Bădescu V., Optimal strategies for steady state heat exchanger operation, J Phys D, 37(2004), p. 2298-2304.
Badescu V., Optimal control of forced cool-down processes, Int J Heat Mass Transfer, 48(2005), p. 741-748.
Bădescu V., Optimum fin geometry in flat plate solar collector systems, Energy Conversion and Management, 47(2006), p. 2397-2413.
Badescu V., Optimum size and structure for solar energy collection systems, Energy, 31(2006), p. 1483-1499.
Bădescu V., Optimal control of flow in solar collectors, for maximum exergy extraction, International Journal of Heat and Mass Transfer, 50(2007), p. 4311.4322.
Badescu V., Optimal profiles for one dimensional slider bearings under technological constraints, Tribology International, 90(2015), p. 198-216; DOI: 10.1016/j.triboint.2015.04.023.
Bădescu V., Optimal piston motion for maximum net output work of Daniel cam engines with low heat rejection, Energy Conversion and Management, 101(2015), p. 181-202; DOI: 10.1016/j.enconman.2015.05.020. Bădescu V., Optimal control in thermal engineering, Vol. 93 in: Studies in Systems, Decision and Control, Springer International Publishing, Switzerland, 2017, 588 p., ISBN: 978-3-319-52967-7 (print), 978-3-319-52968-4 (online); DOI: 10.1007/978-3-319-52968-4.
k. Energy analysis of passive houses
Significant works:
Bădescu V., Sicre B., Renewable energy for passive house heating: Part I. Building description, Building and Energy, 35(2003), p. 1077-1084.
Bădescu V., Simulation analysis for the active solar heating system of a passive house, Applied Thermal Engineering, 25/17-18 (2005), p. 2754-2763.
Bădescu V., Laaser N., Crutescu R., Crutescu M., Dobrovicescu A., Tsatsaronis G., Modeling, validation and time-dependent simulation of the first large passive building in Romania, Renewable Energy, 36(2011), p. 142-157, DOI: 10.1016/j.renene.2010.06.015.
l. Macroengineering
• desert area management (Mauritania, Lake Erye);
• rehabilitation of degraded marine environments (Black Sea, Aral);
• heliohydraulic power plants (Red Sea, Gulf of Hormuz);
• freshwater supply of large geographical areas (trans-Atlantic pipelines, ice transport from Antarctica).
Significant works:
Bădescu V., On the radius of the Dyson’s sphere, Acta Astronautica, 36/2 (1995), p. 135-138.
Bădescu V., Cathcart R.B., Stellar engines for Kardashev’s type II civilisations, J British Interplanetary Soc., 53/9-10 (2000), p. 297-306.
Cathcart R.B., Bădescu V., Architectural ecology: a tentative Sahara restoration, Int J Environmental Studies, 61/2 (2004), p. 145-160.
Bădescu V., Regional and seasonal limitations for Mars intrinsic ecopoiesis, Acta Astronautica, 56(2005), p. 670-680.
Schuiling R.D., Badescu V., Cathcart R.B., Van Overveld P.A.L.C., The Hormuz Strait Dam macroproject – 21st century Electricity Development Infrastructure Node (EDIN)? Marine Georesources and Geotechnology, 23/1-2 (2005), pp. 25-37.
Badescu V., Cathcart R.B., Environment thermodynamic limitations on global human population, Int J Global Energy Issues, 25/1-2 (2006), p. 129-140.
Badescu V., Cathcart R.B., Use of class A and class C stellar engines to control sun movement in the galaxy, Acta Astronautica, 58(2006), p. 119-129.
Schuiling R.D., Bădescu V., Cathcart R.B., Seoud J., Hanekamp J.C., Power from closing the Red Sea: economic and ecological costs and benefits following the isolation of the Red Sea, Int. J. Global Environmental Issues, 7/4 (2007), pp. 341–361.
Badescu V., Poisonous effects of asteroid impacts or nuclear explosions in the western regions of the Black Sea, Earth Interactions, 11/16 (2007), p. 1-27; DOI: 10.1175/EI218.1.
Badescu V., Schuiling R.D., Aral sea; irretrievable loss or Irtysh imports?, Water Resources Management, 24/3 (2010), p. 597-616; DOI: 10.1007/ s11269-009-9461-y.
Badescu V., Isvoranu D., Cathcart R., Transatlantic freshwater aqueduct, Water Resources Management, 24/8 (2010), p. 1645-1675, DOI 10.1007/ s11269-009-9518-y.
Badescu V., Cathcart R.B., Aral Sea partial restoration. I. A Caspian water importation macroproject, Int. J. Environment and Waste Management, 7/1-2 (2011), pp. 142-163.
Badescu V., Cathcart R.B., Schuiling R.D. (Editors), Macro-engineering. A challenge for the Future, Vol. 54 in Series: Water Science and Technology Library, Springer, Dordrecht, 2006, 318 p., ISBN: 1-4020-3739-2.
Badescu V. (Editor), Mars. Prospective energy and material resources, Springer, Berlin, 2009, 700 p., ISBN: 978-3-642-03628-6 (print), 978-3-642-03629-3 (online); DOI: 10.1007/978-3-642-03629-3.
Badescu V., Cathcart R.B. (Editors), Macro-engineering seawater in unique environments. Arid lowlands and water bodies rehabilitation, Series: Environmental Science and Engineering, Subseries: Environmental Science, 1st edition, Springer, Berlin, 2011, 790 p., ISBN: 978-3-642-14778-4.
Macdonald M., Bădescu V. (Editors), The international handbook of space technology, Springer-Praxis Publishing, Heidelberg, 2014, 731 p., ISBN: 978-3-642-41100-7, ISBN: 978-3-642-41101-4 (eBook); DOI: 10.1007/978-3-642-41101-4.
RESPONSIBILITIES
Managerial activity
• Director of the Doctoral School, Faculty of Mechanical and Mechatronics Engineering, Politehnica University of Bucharest (2012-2016).
Activity within the Romanian Academy
• Vice-President of the Romanian Committee for the History and Philosophy of Science and Technology (CRIFST) of the Romanian Academy;
• President of the Division of the History of Science of CRIFST.
He contributed to the life of the Romanian Academy in various ways, briefly presented below:
• participation with lectures in symposia organized by the Timișoara and Cluj-Napoca Branches of the Romanian Academy;
• member of the Scientific Research Coordination Council of the Romanian Academy (2012);
• coordinator of two specialized committees (Renewable Energy Committee and Energy Committee) from the Technical Sciences Section;
• coordination and expert assessment of proposals by Romanian inventors addressed to the Technical Sciences Section of the Romanian Academy;
• participation in the development of the Strategy for the Development of Romania in the Next 20 Years;
• participation as a lecturer in the Initiation Course in the History and Philosophy of Science and Technology organized by CRIFST;
• collaboration with specialized departments from other Balkan Academies (Serbian Academy of Sciences and Arts);
• collaboration with professional organizations in the country;
• participation in the publication of the Explanatory Dictionary for Science and Technology, coordinated by Acad. Gleb Drăgan;
• participation in the coordination of the project History of the Technical Field in Romania initiated in 2011 by Acad. Gleb Drăgan.
RECOGNITION OF SCIENTIFIC MERIT
Editor
Associate editor of several journals, some of them of great international prestige (Energy, Renewable Energy, Journal of Energy Engineering). Member of the editorial team of several journals in the country, including two journals edited by the Romanian Academy (Proceedings of the Romanian Academy. Series A: Mathematics, Physics, Technical Sciences, Information Science and Revue Roumaine des Sciences Techniques. Série Électrotechnique et Énergétique). Coordinated the publication of several multi-author books in the country, including at the Romanian Academy Publishing House. Coordinated the publication of several books abroad, at prestigious publishing houses (Springer, Springer-Praxis, CRC Press).
Activity within scientific societies
Member of several international scientific societies, including the International Solar Energy Society (ISES) and the European Astronomical Society (EAS).
Interviews with mass media in the country and abroad
He has given interviews to prestigious publications in the country (Curentul, Contemporanul, Univers Ingineresc) and abroad (The Guardian, New Scientist, Live Science, Astronomy Today, Astrobiology Magazine, Popular Mechanics).
Awards, rewards, honors
He has received several awards for scientific activity in the country, including the Constantin Miculescu Prize of the Physics Section of the Romanian Academy for 1979. In 2016, he received the Patent and Medal of the Romanian National Committee of the World Energy Council.
The candidate’s biography has been presented in tribute publications of the most important global societies in the field of renewable energy sources (International Solar Energy Society and World Renewable Energy Network), as well as in some online encyclopedias. He is one of the two Romanian specialists included in the history of the use of solar energy on the 50th anniversary of the International Solar Energy Society.
He is cited in numerous Who’s Who publications.
He was awarded titles by the University of Southampton for his long collaboration, and was honored by the American Biographical Institute.
He received medals and awards from institutions abroad.
II. Scientific contributions
Personal scientific contributions have already been detailed in point I.5., presenting significant works for each subdomain addressed within the scientific research activity.
III. Memorialistics – Media–Varia
1. Works published in the journal Academica
• Bădescu V., Prof. Candida Oancea – Pioneer of the use of solar energy in Romania, Academica, February-March 2016, year XXVI, 304-305, no. 2-3, p. 76.
• Bădescu V., Petrache Poenaru (1799-1875), the first engineer member of the Romanian Academy, Academica, June 2016, Year XXVI, 308, no. 6, p. 12.
• Bădescu V., Academicianul Gleb Drăgan, Studii si Comunicări/DIS, vol. VIII, p. 23-26, 2015.
2. Participation in Commemorations/Anniversaries
• Technical Sciences Section, Tributary Session: Technical Sciences Section at 60 years old, November 27, 2015, Romanian Academy Hall. Lecture: 145 years since the reception of the first engineer in the Romanian Academy: Petrache Poenaru.