The Royal Society

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The dispersion of matter in turbulent flow through a pipe
The Royal Society - Tập 223 Số 1155 - Trang 446-468 - 1954
Geoffrey Ingram Taylor
The dispersion of soluble matter introduced into a slow stream of solvent in a capillary tube can be described by means of a virtual coefficient of diffusion (Taylor 1953a) which represents the combined action of variation of velocity over the cross-section of the tube and molecluar diffusion in a radial direction. The analogous problem of dispersion in turbulent flow can be solved in the same way... hiện toàn bộ
Reactions of halogen oxides studied by flash photolysis II. The flash photolysis of chlorine monoxide and of the ClO free radical
The Royal Society - Tập 323 Số 1554 - Trang 401-415 - 1971
N. Basco, S.K. Dogra
A study of the flash photolysis of chlorine monoxide and of its photosensitized decomposition by chlorine and bromine has yielded rate constants for the reactions Cl + Cl2O → Cl2+ ClO,k1= 4.1 x 108l mol-1s-1, Br + Cl2O → BrCl + ClO,k9= 6.1 x 108l mol-1s-1, ClO + Cl2O → ClO2+ Cl2,k3= 2.6 x 105l mol-1s-1, ClO + Cl2O → Cl2+ O2+ Cl,k4= 6.5 x 105l mol-1s-1, 2ClO → Cl2+ O2,k2= 2.8 x 107l mol-1s-1. The q... hiện toàn bộ
A preliminary investigation of the use of focused laser beams for minimum ignition energy studies
The Royal Society - Tập 321 Số 1544 - Trang 41-52 - 1971
F.J. Weinberg, J. Wilson
The plasma produced by focusing a passively Q-switched 30 J ruby laser beam is studied as regards its suitability for minimum ignition energy measurement. By comparison with electric spark discharges, it would appear to offer shorter times and smaller volumes of the initiating plasma, as well as freedom from energy losses to electrodes and elsewhere within the circuit. The growth of the initiating... hiện toàn bộ
On the modulation of water waves in the neighbourhood of kh ≈ 1.363
The Royal Society - Tập 357 Số 1689 - Trang 131-141 - 1977
R. S. Johnson
In 1967, T. Brooke Benjamin showed that periodic wave-trains on the surface of water could be unstable. If the undisturbed depth is h , and k is the wavenumber of the fundamental, then the Stokes wave is unstable if kh ≥ σ 0 , where σ 0 ≈ 1.363. The instability is provided by the growth of waves with a wavenumber close to k . This result is associated with an almost resonant quartet wave interacti... hiện toàn bộ
Large deformation isotropic elasticity: on the correlation of theory and experiment for compressible rubberlike solids
The Royal Society - Tập 328 Số 1575 - Trang 567-583 - 1972
Ray W. Ogden
A method of approach to the correlation of theory and experiment for incompressible isotropic elastic solids under finite strain was developed in a previous paper (Ogden 1972). Here, the results of that work are extended to incorporate the effects of compressibility (under isothermal conditions). The strain-energy function constructed for incompressible materials is augmented by a function of the ... hiện toàn bộ
Predissociation in the spectrum of OH; the vibrational and rotational intensity distribution in flames
The Royal Society - Tập 208 Số 1092 - Trang 63-75 - 1951
A. G. Gaydon, H. G. Wolfhard
In the main 3064 Å system of OH higher rotational levels of bands with v' = 1 and all levels with v' ≥ 2 are affected by a weak predissociation. One spin component of the 2Ʃ + levels is more strongly affected than the other. Of the three molecular states, 4II, 4Ʃ ¯ and 2Ʃ ¯ which could conceivably cause the predissociation, only the 2Ʃ ¯ could produce this effect. The predissociation is observed i... hiện toàn bộ
Sound emission from open turbulent premixed flames
The Royal Society - Tập 303 Số 1475 - Trang 409-427 - 1968
I. R. Hurle, Robert B. Price, T. M. Sugden, Andrés H. Thomas
A study of the noise produced by turbulent premixed flames stabilized on open burners is described. It is shown that such flames may be represented acoustically as a collection of monopole sound sources in the combustion zone. The radiated sound pressure is dependent on the rate of change of the rate of increase of volume of the gas during combustion, which varies owing to the turbulence in the fl... hiện toàn bộ
A formalism for the indirect Auger effect. I
The Royal Society - Tập 347 Số 1651 - Trang 547-564 - 1976
Dorothy Hill, P. T. Landsberg
A general formalism has been developed for the calculation of band-band Auger recombination and impact ionization rates in diamond and zinc blende type structures. The energy gap involved in the transition must be of order 1eV or greater, at room temperature, for direct gaps but is arbi­trary for indirect gaps. A recombination coefficient of 28.1 x 10 -32 cm 6 s -1 for GaP (hole-hole-electron coll... hiện toàn bộ
Grain boundary segregation and intergranular fracture in molybdenum
The Royal Society - Tập 370 Số 1743 - Trang 431-458 - 1980
A.K. Revelly, B.L. Eyre
The refractory group VIA metals generally exhibit intergranular brittleness when they are in the recrystallized condition. This causes severe problems in their fabrication and places major limitations on their practical application. The phenomenon, generally referred to as recrystallization embrittlement, results in large increases in the ductile-to-brittle transition temperature and a change in f... hiện toàn bộ
X-ray and neutron diffraction studies of the crystal and molecular structures of tris(ethylene)platinum and bis(ethylene)(tetrafluoroethylene)platinum
The Royal Society - Tập 386 Số 1790 - Trang 145-161 - 1983
Judith Howard, John L. Spencer, Sax A. Mason
The structures of tris(ethylene)platinum and bis(ethylene (tetrafluoroethylene)platinum have been established by X-ray and neutron diffraction experiments. Tris(ethylene)platinum [Pt(C 2 H 4 ) 3 ] (I), formed by the displacement of 1, 5-cyclooctadiene from bis(1, 5-cyclooctadiene)platinum by ethylene, crystallizes in the trigonal space group R3̅m ( a = b = 7.225(4), c = 11.054(7) Ǻ, 120K) and [Pt(... hiện toàn bộ
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