The composition of collagen and acid-soluble collagen of bovine skin
The C17 branched-chain fatty acid 15-methylhexadecanoic acid has been isolated in trace quantities (approximately 006% of total fatty acids) from hydrogenated ox perinephric fat.
Materials Literature
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Measurement of Electron Energies by Deflection in a Uniform Electric Field
The well-known principle that the deflection of electrons in a uniform electric field can serve to measure the distribution of their energies, has been investigated both theoretically and experimentally. Simple theory suggests a particular choice of parameters for an instrument intended for such measurements. Design e…
The Abrasion of Rubber
Abstract Theoretical results on the abrasion of rubber have been deduced from a few simple assumptions concerning the initiation of the surface damage. The abrasion is proportional to the normal load, independent of the particle size of the abrasive if the particles are polyhedral, and proportional to their mean radiu…
XXVII. Thermoelectric Applications of Semiconductors
(1955). XXVII. Thermoelectric Applications of Semiconductors. Journal of Electronics and Control: Vol. 1, No. 2, pp. 218-222.
Thermal Insulation of Single and Multiple Layers of Fabrics
Thermal insulation, thickness, and volume of air per unit area of fabric have been determined for single and multiple layers of fabrics. A comparison of the thermal in sulation and thickness values obtained by the actual measurement of multiple layers of fabrics to those obtained by adding the values of the individual…
Measurement of Susceptibility Tensor in Ferrites
Experimental techniques for measuring the magnetic susceptibility tensor components in microwave cavities are described. General expressions for the perturbation of microwave cavities by the magnetic properties of ferrites are developed. Experimental results are given for Ferramic 1331 measured at 9165 Mcps. Since the…
Thermal Decomposition of Nitric Oxide
The decomposition of pure nitric oxide and of mixtures with nitrogen or helium was studied at T = 1170 to 1530°K in quartz vessels. Above about T = 1400°K, the reaction is homogeneous and cleanly second order in NO throughout the course of decomposition. A change in the surface to volume ratio leaves the rate unchange…
The Curing of Silicone Rubber with Benzoyl Peroxide
Abstract Little has been reported about the action of benzoyl peroxide as a vulcanizing agent for silicone rubber. Knowledge of this action seems to be of consider- able importance, since benzoyl peroxide is the most widely used vulcanizing agent at the present time. Apparently no studies of the kinetics of peroxide d…
The Wetting of Insect Cuticles by Water
ABSTRACT The water contact angles of insects show a wide range of variation, which is broadly correlated with surface roughness and with habitat. The contact angles of species inhabiting stored products or carrion are greatly modified by contamination. This produces large variations between apparently similar individu…
Specific Heat of Synthetic High Polymers. VI. A Study of the Glass Transition in Polyvinyl Chloride
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpecific Heat of Synthetic High Polymers. VI. A Study of the Glass Transition in Polyvinyl ChlorideSaul Alford and Malcolm DoleCite this: J. Am. Chem. Soc. 1955, 77, 18, 4774–4777Publication Date (Print):September 1, 1955Publication History Published online1 May 2002Publishe…
Determination of crystallinity in polyethylene by X‐ray diffractometer
Abstract A convenient and rapid x‐ray diffraction method is described for the determination of per cent crystallinity in polyethylene, using a scanning goniometer with Geiger tube and scaler counter. Results are presented on per cent crystallinities of a number of polyethylenes and on samples made by quenching polyeth…
43—The Geometry of a Plain Knitted Loop
This paper presents a geometrical model of a plain knitted loop as a basis for a mathematical description of the dimensional properties of a plain knitted fabric.
Méthodes nouvelles d'analyse chimique rapide des ciments
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Tentative method of test for compressive strength of hydraulic cement mortars (using 2-inc cube specimens)
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Errechnung des entsäuerungsgrades in vorwärmern für drehöfen aus der orsatanalyse
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A water-cooled kiln in Russia
En Gigant (Rusia) se ha adaptado una camisa de refrigeración a un horno rotatorio, con el fin de aumentar la vida del revestimiento y la eficiencia térmica.
Wisconsin firm makes vibrated pipe
Se presentan en este artículo, de forma detallada, las distintas etapas del proceso de fabricación, así como las características, de los tubos producidos por la Madison Concrete Pipe and Products Company, Madison, Wis.
Préparation â chaud des pâtes argileuses
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Fuel economy in brick drying
Mediante el empleo de dos nuevos mecheros Suxé, junto con la introducción de algunas reformas, se ha conseguido disminuir el consumo de combustible en la operación de secado, evitándose, al mismo tiempo, la presencia de humos.
Beitrag zur flammenphotometrischen bestimmung des caloiums
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