NatureSir Norman Lockyer Macmillan Journals Limited, 1928 - 700 strani |
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Zadetki 1–3 od 81
Stran 280
... structure , fixation appears to be necessary . Grids carrying nuclear membranes were examined in a Siemen's electron microscope operating at 52 kV . , the magnification of the photographic negative being 12,000-15,000 diameters . The ...
... structure , fixation appears to be necessary . Grids carrying nuclear membranes were examined in a Siemen's electron microscope operating at 52 kV . , the magnification of the photographic negative being 12,000-15,000 diameters . The ...
Stran 377
... structure , but that a theory of structure could not be based on a study of fracture alone , as had been attempted by some workers . Vitreous silica consists of SiO2 tetrahedra linked by the oxygens at the corners , each tetra- hedron ...
... structure , but that a theory of structure could not be based on a study of fracture alone , as had been attempted by some workers . Vitreous silica consists of SiO2 tetrahedra linked by the oxygens at the corners , each tetra- hedron ...
Stran 690
... structure , as represented by 2 - amino quinoline ( Fig . 1a ) ; ( 2 ) a para - quinonoid structure , as represented by 4 - amino quinoline ( Fig . 1b ) ; ( 3 ) an ortho - para - quinonoid structure , as represented by 7 - amino ...
... structure , as represented by 2 - amino quinoline ( Fig . 1a ) ; ( 2 ) a para - quinonoid structure , as represented by 4 - amino quinoline ( Fig . 1b ) ; ( 3 ) an ortho - para - quinonoid structure , as represented by 7 - amino ...
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acid activity Agriculture animals appears application Association atoms biological Britain British Burlington House cacao carbon carbon dioxide cells cent Chem chemical Chemistry Colonial colour Committee compounds crystal curve Department director discussion disease effect electric electron energy engineering equation experimental experiments factor fibrinogen field given Gold Coast hyaluronidase hydrogen important increase industry Institute interest investigations ionization ionosphere isotopes Laboratory larvæ LECTURER material measured mechanism Medical ment mesons method Ministry Ministry of Supply molecules Museum National Nature nitrogen observed obtained organisation oxide paper particles Phys physics plant plates possible present pressure problems Proc production Prof protein radiation Radioactive reaction recent Research Royal Secretary shown Society sodium solution species structure substances surface technical temperature theory tion triterpene University College University Grants Committee University of London viscosity Woburn Square X-ray