Guillermo Gonzalez Camarena
Guillermo Gonzalez Camarena, Mexican electrotechnic engineer (Guadalajara, Jalisco State 17 February 1902 – Las Lajas, Veracruz State 18 April 1965) PATENTS/INVENTIONS Sequential field trichromatic system, a color TV system (1940) A simplified color generation system Subjective procedure (1958) A new color Television system (1960) A simplified bicolor system for television (1962) with international repercussion A chromoscopic adapter for television equipment (US Patent 2296019 in 1942) later improved in 1960 and 1962 Trichromatic kinescope of linear screen or Trinitron (1963) A seismic alarm A kaleidoscope (1960) HONORS Doctor Honoris Causa, Columbia University of Chicago (1950)
Godofredo Garcia
Godofredo García Díaz, Peruvian mathematician and engineer (Lima 08 November 1888 – 14 July 1970) Authored over 103 publications Derived equations and exact solutions for motion and viscous flows tensions Nuevos métodos en la teoria de la relatividad general de A. Einstein (New methods in A. Einstein general relactivity theory). Acad. Nac. Ciencias (1952) Sobre una nueva forma de las desigualdades de K. Sundman en el problema de los 3 cuerpos (About a new form of Sundman inequalities in three-body problem) Lectured conferences in Cambridge (generalization of Lagrange formula), Princeton (Regulation of three bodies’ plane problem) Institute Poincaré (Current state of solar System) Invited Lecturer, International Congress of Mathematicians (1932) SOME BIBLIOGRAPHY Discusión de la ecuación general de segundo grau con dos y con tres variables (1916) Orbitas electronicas em la mecanica clasica (1930) La métrica em um espacio multiple (1934) Le probleme principal de la balistique extérieure dans la théorie de la relativité restreinte em deuxieme approximation (1938) Sobre uma nueva teoria cosmologica (1944) Sobre el estado actual del sistema solar (1944) La transformación de las ecuaciones de la dinamica en el espacio curvo (1961) Sobre el desarrollo en serie de la integración por partes (1964)
Giorgio Giacaglia
Giorgio Eugenio Oscare Giacaglia, Italian-born Brazilian engineer and physicist (Genoa 28 March 1935 – One of the firsts scientists in the world to observe Pacific decadal oscillation Authored the influential book Perturbation methods in non-linear systems (1972) DEVELOPED With A. Carvalho Jr. Improvement in process of degassing using MASP methodology. Engin. Res. 6:1-24, 2015 With W.Q. Lamas & J.L. Silveira. Development of a methodology for cost determination of wastewater treatment based on functional diagram (2009) With W.Q. Lamas, J.L. Silveira & J.R. Camargo. Development of a control system for cogeneration with biogas associated to a small wastewater treatment station (2007) Machining of commercially pure titanium (2001) A new mechanical envelope for Schweizer CB330 helicopter (1997) Formulated a computer program for the orbit correction of Pluto Computer program for controlling dams and floodgates (1992) Graphite impregnation for energy harvesters (1986) New method of representation of satellite data applicable to geodesy (1982) A new method for processing geophysical data employing artificial satellites (1974) OTHERS A simple theory of Trojan asteroids (1983) A generalization of Lagrange’s formula for implicit functions (1981) With C.A. Lundquist. A geopotential representation with sampling functions (1971) PATENTS With L.O.M. Reis, W.E.G. Abreu & O.G. Oliveira. Conjunto de sensores para monitoramento de disjuntores de extra-alta tensão PI0603706-2 A2 (2006) HONOURS Honorary Member, Sigma Gamma Tau Society (1971) & International Symposium on Dynamics Problems of Mechanics
Giambiagi brothers
Juan José Giambiagi Persico, Argentine / Brazilian theoretical physicist (Buenos Aires 18 January 1924 – Rio de Janeiro 08 January 1996) Regarded as expert of world renown on quantum field theory Authored about 90 scientific works ACHIEVEMENTS Developed elimination divergence method in quantum field theory and in six dimension super symmetry Invented analytical regularization method With C.G. Bollini & A. Gonzalez Dominguez. Analytic regularization and the divergence of quantum fields theories. Nuovo Cimento 31:550-61, 1964 Invented dimensional regularization method With C.G. Bollini. Dimensional Regularization. J. Nuovo Cimento 12 B:20, 1972 Eponym of Bollini-Giambiagi potential OTHER CONTRIBUTIONS An alternative dimensional reduction prescription. Mod. Phys. Lett A 11(13):1037-45, 1996 With C. G. Bollini & O. Obregon. Criteria to fix the dimensionality corresponding to some higher derivative Lagrangians. Modern Phys. Lett. A 7(7):593-9, 1992 With C.G. Bollini. Lagrangian procedures for higher order field equations (1986) With C.G. Bollini. Relations between effective potentials in different dimensions. Phys. Lett. B 134(6):436-8, 1984 With C.G. Bollini. A differential equation for the self-energy in momentum space. Phys. Lett. 10(2):219-21, 1964 With M. Giambiagi, Segre de Giambiagi & C.G. Bollini. On a SC method for determining bond orders in alternant hydrocarbons. HONORS Visiting Researcher, California Institute of Technology (1958) Visiting Researcher, Centre Europeen pour la Recherche Nucleaire (1976) His brother, Mario Giambiagi Persico, Argentine / Brazilian quantum chemist (1928 – Rio de Janeiro 08 March 2002) Authored over 60 papers First to define bond indices for multicenter systems With M. Segre de Giambiagi & K.C. Mundim. Definition of a multicenter bond index. Struct. Chem. 1(5):423-7, 1990 With R. C. Ferreira & M. Segre de Giambiagi. Une approximation pour lês parametres semi-empiriques conjuguées. J. Chim. Phys. 61:694, 1964 Presented simple rules for the bond order properties of conjugated organic molecules having two-fold symmetry (1979) With M. Segre de Giambiagi. Two simple symmetry-dependent rules in conjugated systems. Lett. Nuovo Cimento 25:459-62, 1979 Proposed a MO multicenter bond index as a measure of aromaticity With M. Segre de Giambiagi, C.D.S. Silva & A.P. de Figueiredo. Multicenter bond indices as a measure of aromaticity. Phys. Chem. Chem. Phys. 2:3381-92, 2000 With M.S. Giambiagi found an analytical expression relating softness with the experimental molecular polarizability (1993) With M.S. Giambiagi proposed a definition for the number of electrons X involved in a three-center bond, based upon the corresponding two-center bond indices (1994) With C.G. Bollini, M.S. de Giambiagi & A.P. de Figueiredo. Graphical linking of MO multicenter bond index and VB structures. II-5-c rings and 6-c heterocyclic rings. Struct. Chem. 12(2):113-20, 2001 With F. Cernuschi & M.S. de Giambiagi. Application d’un modele d’ordre a courte distance aux electrolytes forts With J.J. Giambiagi, M. Segre de Giambiagi & C.G. Bollini. On a SC method for determining bond orders in alternant hydrocarbons. Theoret. Chim. Acta 18:394-8, 1970 Eponym of Giambiagi bond order Spouse of Mario, Myriam Malvina Segre de Giambiagi, Argentine-born Brazilian physical chemist (1937 – With M. Giambiagi & K.C. Mundim. Group-group bond index for molecular systems. J. Chem. Soc. Faraday Trans. 88:29959, 1992 With M. Giambiagi, J.M. Pires & P. Pitanga. Mollesse d’un atome dans une molecule et definition de la mollesse d’un groupement fonctionnel: une echelle LCAO. J. Mol. Struct. Theochem. 180:223-31, 1988 With M. Giambiagi, D.R. Grempel & C.D. Heymann. Sur le definition d’un indice de liaison (TEV) pour des bases non orthogonales. Proprietés et applications. J. Chem. Phys. 72:15-22, 1975 With M. Giambiagi. Certain rules concerning alternant hydrocarbons. Chem. Phys. Lett. 1:563-5, 1968 With F. Cernuschi. Theory of condensation of liquids of one and two-components. J. Chem. Phys. 36:412, 1962 With M. Giambiagi & F. Cernuschi. Theory for strong electrolytes in not too dilute solutions (1962)
Ghosh brothers
Bhupendra Nath Ghosh, Indian chemist (Arambag Village, Hooghly District, West Bengal April 1900 – Calcutta 26 May 1988) ACHIEVEMENTS Isolated a cardiotoxin and a respiratory toxin from snakes venom as well as enzymatic inhibitors Verified experimentally the effect of surface conductance in modifying the zeta potential of the particles Proposed an original equation for the rate of colloids coagulation Developed equations for the variation of activity, conductance, viscosity and molal volume in terms of cube-root of concentration OTHERS Deriving equation to account for the effect of added electrolytes on the viscosity of sols Modification of the equations for the electroviscous effect of colloidal electrolytes Equation to account quantitatively for the variation of apparent molal volume of strong electrolytes in solution according to cube root of concentration BIBLIOGRAPHY This text was extracted partially from J. Indian Chem. Soc. 66:71-2, 1989 His brother, Jnanendra Chandra Ghosh, Indian chemist (Purulia, East Bengali 14 September 1894 – Calcutta 21 January 1959) Created the theory of complete dissociation of electrolytes (1918), that was improved and revised by Debye in 1923 Eponym of Ghosh equation for the conductance of binary electrolytes and Langmuir-Ghosh equation for colloids Ghosh-Mitter procedure described in Quart. J. Ind. Chem. Soc 4:353-66, 1928
German Garcia Rada
Germán García Rada, Peruvian plant pathologist (Lima 22 February 1902 – ?) Nuevo método de control de la “chupadera fungosa” en los almaciges (1938) Una nueva enfermedad del cafeto (1940) “fusariosis” With J. Vallega, W.Q. Loegering & E.C. Stakman. An unusually virulent race of wheat stem rust, Nº189. Phytopathology 32:720-6, 1942 First to describe a disease in quinua (Chenopodium quinoa), the mildew caused by Peronospora farinosa in Investigaciones en las enfermedades de la quinua (1947)