Xuesen Qian
Xuesen Qian or Hsueh-sen Chien or Hsue-shen Tsien, Chinese engineer and physicist (Hangzhou, Zhejiang Province 11 December 1911- Beijing 31 October 2009) His relative is Nobel Prize winner Roger Yonchien Tsien Recognized as one of the world’s leading aerodynamicists ACHIEVEMENTS A method for predicting the compressibility burble With M.C. Chang. A similarity law for stressing rapidly heated thin-walled cylinders A method for comparing the performance of power plants for vertical flight Developed a method for two dimensional subsonic compressible flow and a procedure which enables the prediction of the compressibility burble from test data obtained at low air speeds With T. Von Karman gave a general relation between drag and heat transfer as function of Mach’s number Developed a general method using step-wise doublet distribution for a pointed projectile With E.J. Malina presented an exact solution of the problem of determining the height reached by a body in vertical flight in vacuo propelled by successive impulses Developed a new principle involving the energy level and the geometric restraint to determine buckling of thin shells in equilibrium states Gave a generalization of Blasius theorem for calculating aerodynamic forces acting on an airfoil With E. Reissner & C.C. Lin presented a simple unified treatment of the unsteady two-dimensional polytropic potential flow around a slender body Formulated rules for achieving complete flow similarity of rarified gas flow Generalized Alfrey theorem for isotropic compressible media involving body forces With T.C. Adamson & E.L. Knuth suggested a scheme of tracking and automatic navigation involving a high-speed computer and elevator servo for a long range rocket vehicle Co-authored the article Comment and initial analysis of long-range rocket, which laid a foundation for ground-to-ground missiles and sounding rocket theory Put forward a new methodology of systems engineering, the metasynthetic engineering With J.Y. Yu & R.W. Dai. A new discipline of science. The study of open complex giant system and its methodology (1988) EPONYMY Karman-Qian formula Karman-Tsien method Karman-Tsien law Karman-Tsien correction factor HONOURS Qianxuesen 3763 (asteroid)
Weichang Qian
Weichang Qian or Weizang Chien, Chinese physicist (Wuxi County, Jiangsu Province 09 October 1912 – Shanghai 30 July 2010) Authored over 200 papers and 18 monographs Studied new generalized variational principles and established a new variational functional Suggested using the Lagrange multiplier for eliminating the constraint conditions of all kinds of variational problems and established a new variational function using it Put forward a systematic method to construct generalized variational principles (1964) published only in 1979 Introduced the intrinsic methods in elasticity (1944) With J.L. Synge authored a pioneering classical work on the intrinsic theory of plates and shells in solid mechanics Established the complete intrinsic theory of plates and shells (1942) Proposed a method to calculate the resistance of radar-wave guides Perturbation theory (1947) Developed the method of composite expansions, a novel singular perturbation method (1948) Initiated a perturbation method by using the central deflection as ther perturbation parameter Solved the variable twist torsion problem of thin-walled cylinders with closed cross sections First to obtain the limit equation for thin ring shells and the general solution to the homogeneous equation Developed a new field of non-Kirchhoff-Love theory of plates and shells Derived a general solution for axisymmetric circular ring shells Developed a new method of encoding Chinese characters (1984) EPONYMY Successive approximation method of treating large deflection problem or Chien method (1948) Qian Weichang equation for nonlinear stability of shallow shell (1960s) Qian Weichang general equation
Sanqiang Qian & Zehui He
Sanqiang Qian (Tsien), Chinese nuclear physicist (Huzhou, Zhejiang Province 16 October 1913 – Beijing 28 June 1992) Discovered a new kind of fission in uranium atoms Developed some inventions Honored with Henri de Parville Award for Physics (1946) His wife, Zehui He, physicist (Suzhou, Jiangsu Province 05 March 1914 – Beijing 20 June 2011) With L. Vigneron & R. Castel proved the existence of ternary fission, explained its mechanism and predicted the mass spectrum of the fragments (1946) Performed the first observation of quaternary fission (1946) First observed the elastic scattering of electrons with positrons A new precise and simple method of measuring the speed of flying bullets. Doctoral Thesis (1940)
Roberto Quadrelli
Roberto Quadrelli Sanchez, Uruguayan medical geneticist (Montevideo 15 January 1937 – Described new mutations and complex chromosome rearrangements With A. Vaglio, A. Quadrelli et al. A 14 year follow up of a case detected prenatally of partial trisomy 13q21.32-q ter and monosomy 18q22.3-qter as a result of a maternal complex chromosome rearrangement involving chromosomes 63 and 18. Genet. Test. Mol. Biomol. (2009) Described a new syndrome With A. Vaglio, S. Reyno, A. Lemes et al. Uruguay facio-cardio-musculo-skeletal syndrome: a novel X-linked recessive disorder. Am. J. Med. Genet. 95:247-65, 2000 With S. Reyno, A. Vaglio, A. Lemes & A. Silveri. Displasias esqueléticas: aproximación a uma nueva clasificación. Experiencia del Instituto de Genetica Medica del Hospital Italiano. Arch. Pediat. Urug. 70(2):65-80, 1999 With R. Vignale, J. Bonifazio, N. Reissenweber & A. Vaglio. Telangiectasias generalizadas associadas a un paraganglioma (feocromocitoma) mediastínico y bócio nodular en una paciente integrante de una família con paraganglioma y bócio multinodular hereditário? Una nueva entidad?. Actas Dermo-sifil. (1998) Primeras familias con consaguinidad y sindrome nefrotico con esclerosis mesangial difusa
Renyuan Qian
Renyuan Qian, Chinese polymer chemist (Changshu, Jiangsu Province 19 September 1917 – 2003) Authored 240 papers, 40 review articles and book chapters (until 1997) Introduced a concept of cohesional entanglement through local nematic interaction of neighboring chain segments (1997) Proposed dynamic contact concentration concept Proposed a new predictive equation for liquid diffusion coefficients (1996) Created methods for modifying the distribution of molecular weight to adapt to the requirements of processing function of polypropylene Developed new types of organic conductors Developed an electronic circuit for the precise measurements of dipole moments With Q. Ying, P. Xie & Y. Liu applied a new eluting solvent (cyclohexane) for steric exclusion liquid chromatography of i-polypropylene (1986) With Z.M. Hu, S.X. Chen & S. Zhang established focal-conic texture decoration, a new decoration method (2000) PATENTS With Q. Fan, Y. Liu, R. Xu & D. Zhao. Technology for high speed spinning polypropylene. CN 85100885 (1985) With M. Wu & Y. Wang. Polyester elastomer and multifunction group epoxy modified polyester composition and process for preparing the same. CN 96109103 (1997)
Quisumbing brothers
Eduardo Arguelles y Quisumbing, Philippine botanist (Santa Cruz, Laguna 24 November 1895 – Quezón City 23 August 1986) Authored 137 papers Described 186 new plant species SOME BIBLIOGRAPHY Medicinal Plants of Philippines (1951) Vegetable poisons of the Philippines. Philipp. J. Forest 5:146, 1947 With J.B. Juliano. Development of the ovule and embryo sac in Coccos nucifera L. Bot. Gaz. 84:279-93, 1927 With A.W. Thomas. Conditions affectant la determination quantitative des sucres réducteurs par la liqueur de Fehling. Elimination de certaine erreurs dans les methods. Am. Soc. 43:1503-26, 1921 Comparative study of conditions affecting the determination of reducing sugars by Fehling solution (1921) Determination of glucose and starch by the alkaline potassium permanganate method. Philipp. J. Science 16:581-01, 1920 The cultivated root-producing aroids. Philipp. Agric. 3:85-98, 1914 With G. Ocfemia. Some chemical and bacteriological effects of clearing grass land by burning. Philip. Agric. Forester3:76-8, 1914 HONORS Quisumbingia Merrill 1936 (Apocynaceae) His brother, Francisco Arguelles Quisumbing, chemist (Santa Cruz, Laguna 03 December 1893 – ?) Invented Quink ink