Proceedings of the American Academy of Arts and Sciences, Volumen73Metcalf and Company, 1937 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
Dentro del libro
Resultados 1-3 de 22
Página 311
... DIFFUSION .. 317 318 323 328 328 The Diffusion of Helium through Glasses .. 328 Forces within Channels . 328 Activation Energy of Diffusion . 330 The Number and Size of Holes in Glasses .. 332 Differences Between Crystals and Glasses ...
... DIFFUSION .. 317 318 323 328 328 The Diffusion of Helium through Glasses .. 328 Forces within Channels . 328 Activation Energy of Diffusion . 330 The Number and Size of Holes in Glasses .. 332 Differences Between Crystals and Glasses ...
Página 334
... diffusion of helium and neon through vitreous silica and pyrex glass . U = rate of diffusion in ccs . per hour though 1 sq . cm . of surface and a thickness of 1 mm . C Activation energy of Diffusion A B Distance between I. 5.0 40 3.0 ...
... diffusion of helium and neon through vitreous silica and pyrex glass . U = rate of diffusion in ccs . per hour though 1 sq . cm . of surface and a thickness of 1 mm . C Activation energy of Diffusion A B Distance between I. 5.0 40 3.0 ...
Página 343
... diffusion considerably , the maximum effect being at displacements of 0.05 to 0.1 Å . For pur- poses of diffusion considerations involving an appreciable activation energy , then , the effective size of the hole in the average crystal ...
... diffusion considerably , the maximum effect being at displacements of 0.05 to 0.1 Å . For pur- poses of diffusion considerations involving an appreciable activation energy , then , the effective size of the hole in the average crystal ...
Contenido
Poetry and Music By SERGE K OUSSEVITZKY | 1 |
American Policies in the Far East By W C FORBES | 5 |
The Lower Permian Insects of Kansas Part 8 By F M CARPENTER | 29 |
Otras 17 secciones no mostradas
Otras ediciones - Ver todas
Términos y frases comunes
Acad Amer amplitude band California Cambridge Cañon ch'i Chang Po-tuan chin chromatophores chüan circiter Clark County color changes Creek crustaceans crystal curves cymes dark diametro diffusion east effect Elko County elytron feet Mus FIGURE fore wing Fundulus genus gyromagnetic helium helium atom hind wing holotype hot springs hsien I-II insects intermedin Klauber Lake layer lizard longis lower magnetic margin Mean melanophores Microtropis miles north miles south minerals Mountains Mus Museum of Vertebrate nerves neurohumors Nevada Nevada localities Fig Nye County observations obtained ovipositor pale pe/m PERMALLOY Poem potential energy Proc Protohymenoptera Psocoptera quadrature coil River rocks rotor species specimens Sumatra surface Table temperature thermal Tillyard tion torque torque coil Univ utrinque Valley Van Denburgh venation Vert Vertebrate Zoology White Pine County Wu chên p'ien Zool