Ahmed Amin Hamza
Ahmed Amin Hamza, Egyptian experimental physicist (Giza 08 March 1941 – Authored over 130 original works Regarded as one of the best world’s experts on the field of optical interferometry of fibres METHODS A new method to measure the mean refractive indices and the birefringence of fibres of irregularly shaped transverse sections (1980) A method for measuring the diameter of fibres by observing the diffraction pattern of a He-Ne laser beam incident perpendicular to the fiber axis (1980) Built a system for colour matching on the basis of optical measurements (1975) Extended the application of the Pluta microscope to measure the mean refractive indices and birefringence of fibres with irregular transverse section (1980) A method to reconstruct the tridimensional dispersion profile A novel simultaneous photoelastic and two-beam interferometric system EXPRESSIONS/FORMULAE Suggested a relation between the quantities of trace elements and their effect on the structural and mechanical properties of cotton fibres (1975) Developed different theoretical formulae to modify the measurement accuracy of different types of optical fibers whose core has a graded index structure (1991) Modified different expressions to measure the profile shape parameter and the core/cladding refractive index difference Derived expressions to measure the refractive indices and birefringence using interference fringe shift in the fibre region (1984, 1986 and 1991) Derived expressions to obtain the refractive index profile of optical and textile fibres (1991) Derived a mathematical expression that relates the fringe shift at a point along the radius to the fibre geometrical distances (1992, 1994 & 1995) DEVICES Designed a device to help in studying the optomechanical properties of fibres (1987-8) Designed an instrument used with the multiple-beam Fizeau system to stretch longitudinally textile fibres in order to study their opto-mechanical properties (1987) A modified creep device (2010) DETERMINED The refractive index along the radius of a multilayer structure fibre using the distance method The refractive indices and birefringence of fibres with irregular cross-section of multilayer structure fibres using the area enclosed under interference fringe shift The index profile taking into consideration the area under the fringe shift The refractive index profile considering the refraction of the incident beam inside the fiber LINKS http://osp.mans.edu.eg/hamzaaa/english/Publications.htm
Adolpho Hempel
Adolpho Hempel, US-born Brazilian agricultural entomologist (Canton, Illinois 10 April 1870 –São Paulo 04 November 1949) World expert on Coccoidea Hemiptera Authored 88 papers and notes Developed a new method to combat sauba and other ants Novo methodo para combater a saúva (Atta sexdens Fabr.) e outras formigas nocivas às plantas. Bol. Agric. Secr. Agric. Com. Obras Publ. 5(2):72-4, 1904 DESCRIBED NEW TAXA Hemiptera Genera Alecanochiton 1921 Aleuronudus 1922 Apiococcus 1900 Canceraspis 1934 Ceraleurodicus 1922 Cryptokermes 1900 Diaspidistis 1900 Edwallia 1899 Luederwaldtiana 1923 Megalecanium 1920 Nealeurodicus 1923 Nealeyrodes 1923 Neocoelostoma 1932 Neolecanochiton 1932 Neoparlaspis 1934 Neotectococcus 1937 Octaleurodicus 1922 Pseudaleurodicus 1923 Pseudaleurobolus 1923 Pseudaleyrodes 1923 Pseudalichtensia 1928 Pseudischnaspis 1900 Pseudocapulinia 1932 Pseudotectococcus 1934 Pulvinella 1899 Stigmacoccus 1900 Tectococcus 1900 Species More than 60 Others New species of Water Rotifera and Protozoa (1896) HONORS Hempelia Vaz 1936 (Nematoda)
Adolar Gottlieb Herre
Adolph (Adolar) Gottlieb Julius (Hans) Herre, German-born South African botanist (Anhalt-Dessau 07 April 1895 – Pretoria 16 January 1979) Known internationally for his studies on succulent plants of South African flora DESCRIBED NEW PLANTAE TAXA (Aizoaceae) Genera Arenifera 1948 Jensenobotrya 1951 Neo-aridaria 1971 Species Crassula fusca 1953 Jensenobotrya lossowiana 1951 HONORS Herreanthus Schwantes 1928 (Aizoaceae)
Adnan Hamoui
Adnan Hamoui, Syrian mathematician in Kuwait (Damascus 20 December 1932 – Defined quaternion submanifolds of codimension 2 (1984) With R.S. Mishra obtained a formula on an almost Sasakian manifold (1982) Deux nouvelles classes de solutions non-statiques à symétrie sphérique des èquations d’Einstein-Maxwell. Ann. Inst. Henri Poincaré. A. Phys. Theor. 10(2):195-227, 1969 Generalized a subcase of Lemaitre-Tolman model to dust moving in a spherically symmetric electric field (1969) With L. Bel established a general program permitting to decide on the possibility of matching two metrics (1967) With A. Papapetreou obtained first procedure of extending the geometry of space-time through a weak singularity (1967) and derived a number of relations valid for an arbitrary surface layer in general relativity (1968)
Abdul Hamid
Abdul Hamid, Pakistani mycologist (fl.1936-65) Described Pythiogeton sterile and Achlya androcomposita (1942) HONORS Hamidia Chaudhuri 1942 (Fungi)
Zulma Gasparini
Zulma Nélida Brandoni de Gasparini, Argentine vertebrate paleontologist (La Plata 15 May 1944 – DESCRIBED REPTILIA FOSSIL TAXA Suborders Notosuchia 1971 Ziphosuchia 2000 with Ortega, Buscalioni & Calvo Families Bretesuchidae 1993 Dolichochampsidae 1980 with Buffetaut Peirosauridae 1982 Uruguaysuchidae 1971 Genera Antarctopelta 2006 with Salgado Ayllusuchus 1984 Bretesuchus 1993 with Fernandez & Powell Cacibupteryx 2004 with Fernandez & de la Fuente Carandaisuchus 1985 Dolichochampsa 1980 with Buffetaut Gallardosaurus 2009 Lakumasaurus 2002 with Novas, Fernandez, Lirio, Nuñez & Puerta Leivanectes 2019 with Paramo-Fonseca, O’ Gorman, Padilla & Parra-Ruge Lomasuchus 1991 with Chiappe & Fernandez Maresaurus 1997 Sulcusuchus 1990 with Spalletti Tuarangisaurus 2003 with Salgado & Casadio Vinialesaurus 2002 with Bardet & Iturralde-Vinent Wenupteryx 2012 with Codorniu Species Ayllusuchus fernandezi 1984 Antarctopelta oliveroi 2006 with Salgado Araripesuchus patagonicus 2000 with Ortega, Buscalioni & Calvo Bretesuchus bonapartei 1993 with Fernandez & Powell Cacibupteryx caribensis 2004 with Fernandez & de la Fuente Carandaisuchus nativus 1985 (or Mourasuchus nativus) Cricosaurus araucanensis 1976 with Dellape Cricosaurus lithographicus 2013 with Herrera & Fernandez Dakosaurus andiniensis 1996 with Vignaud Dolichochampsa minima 1980 with Buffetaut Gallardosaurus iturraldei 2009 Lakumasaurus antarcticus 2002 with Novas, Fernandez, Lirio, Nuñez & Puerta Leivanectes bernardoi 2019 with Paramo-Fonseca, O’ Gorman, Padilla & Parra-Ruge Lomasuchus palpebrosus 1991 with Chiappe & Fernandez Maresaurus coccai 1997 Metriorhynchus casamiquelai 1977 with Chong Metriorhynchus westermanni 1980 Pliosaurus almanzaensis 2018 with O’Gorman & Spalletti Pliosaurus patagonicus 2014 with O’Gorman Sulcusuchus erraini 1990 with Spalletti Trinacromerum lafquenianum 1985 with Goñi Tuarangisaurus cabazai 2003 with Salgado & Casadio Wenupteryx uzi 2012 with Codorniu HONORS (Fossil) Gasparinisaura Coria & Salgado 1996 (Reptilia) Zulmasuchus Paolillo & Linares 2007 (Reptilia) Gasparinisuchus Martinelli, Sertich, Garrido & Praderio 2012 (Reptilia) Brandonia Bonaparte 2000 (Mammalia)