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1992
Dias, C., and D. K. Dasgupta. "PIEZOELECTRIC PROPERTIES OF 0-3 CERAMIC POLAR POLYMER COMPOSITES." Symp on Smart Materials Fabrication and Materials for Micro-Electro-Mechanical Systems. Vol. 276. Materials Research Society Symposium Proceedings, 276. PITTSBURGH: Materials Research Soc, 1992. 25-29. Abstract
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1991
Alferes, {José Júlio Alves}. "A PRACTICAL INTRODUCTION TO WELL FOUNDED SEMANTICS." IOS Press. 1991. 277-288. Abstract
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Phillips, A. M. M. M., and T. A. Modro. "Phosphonic systems. 2. Functional group and skeleton modifications in diethyl esters of 2 propenyl (and 2 pentenyl) phosphonic acids." Phosphorus, Sulfur and Silicon. 55 (1991): 41.
Phillips, A. M. M. M., and T. A. Modro. "Phosphonic Systems. Part 3.' Diethyl Prop-2-enylphosphonate, a New and Versatile Substrate in Carbon-Carbon Bond Formation." J. Chem. Soc. Perkin Trans. 1 (1991): 1875-1879.
1990
Batista, AG. "Programmable Cardiac Simulator ." 2nd Portuguese Congress of Biomedical Engineering. 1990.
1989
Vieira, M., A. Maçarico, R. Martins, I. Ferreira, and L. Guimarāes. "Plasma Diagnostic of a TCDDC System Using a Quadropole Mass Spectrometer." MRS Proceedings. 149.1 (1989). Abstract
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1986
Valtchev, Stanimir, Georgi Krustev, and Evgeni Popov. "Power Transistor Pulse Generator for Technological Purposes." Jubileum Scientific Session of VMEI?Gabrovo, Power Electronics Section. 1986.
1984
Vasilev, Vasil, and Stanimir Valtchev. "PWM Servosystem for DC Motors Control." Scientific and Technological Conference "Industrial Robots?84". 1984.
1983
Vasilev, Vasil, Branimir Natchev, and Stanimir Valtchev. "Power Converter of DC to Sinusoidal AC Voltage for Robotic Purposes." Scientific Session VMEI?83, Section Robotics. 1983.
1980
Valtchev, Stanimir Power supply for 2 kW ? 25 kV CO2 gas laser. Ministry of Science and Technology Bulgaria ? USSR (limited access), 1980. Abstract
International project (1251?78 and 1252?78) in which the Technical University of Sofia (S.Valtchev, N.Stefanov) has sucessfully acomplished the task of constructing and implementing in production a high precision (0.01% regulation) power supply for a cirurgical laser tool (1977-1980). The construction involved a vacuum tube cascaded with MOS-FET to obtain very high quality current source necessary for the stable characteristics of the gas discharge in the laser tube.
1979
1977
Moniz, António B. "Peniche: da produção de peixe à produção de ‘lixo’ radioactivo." Raiz & Utopia.2 (1977): 159-165.Website