General Electric

About: General Electric is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Turbine & Rotor (electric). The organization has 76365 authors who have published 110557 publications receiving 1885108 citations. The organization is also known as: General Electric Company & GE.

Spin Pinning at Ferrite-Organic Interfaces

Abstract: Ultrafine particles of Ni${\mathrm{Fe}}_{2}$${\mathrm{O}}_{4}$ coated with organic molecules show a behavior consistent with extremely strong pinning of the ferrite surface spins. The low-temperature magnetization is only \ensuremath{\sim}75% saturated in fields of 200 kOe, and M\"ossbauer spectra show that the spins remain at large angles with respect to the direction of an applied field of 68.5 kOe. Uncoated ultrafine Ni${\mathrm{Fe}}_{2}$${\mathrm{O}}_{4}$ particles do not show this behavior.

A Correlation-Based Transition Model using Local Variables

Abstract: A new correlation-based transition model has been developed, which is based strictly on local variables. As a result, the transition model is compatible with modern computational fluid dynamics (CFD) approaches, such as unstructured grids and massive parallel execution. The model is based on two transport equations, one for intermittency and one for the transition onset criteria in terms of momentum thickness Reynolds number. The proposed transport equations do not attempt to model the physics of the transition process (unlike, e.g., turbulence models) but from a framework for the implementation of correlation-based models into general-purpose CFD methods.

Organopolysiloxane polycarbonate block copolymers

Abstract: 1,175,264. Organopolysiloxane - polycarbonate block copolymers. GENERAL ELECTRIC CO. 22 Dec., 1966 [3 Jan., 1966], No. 57587/66. Heading C3T. Organopolysiloxane - polycarbonate block copolymers have unsaturated terminal groups V 1 -OCOO- or V 1 -NHCOO- and comprise 1-95 wt. per cent of (A) polysiloxane blocks of units R 1 2 SiO and correspondingly 5-99 wt. per cent of (B) blocks of the reaction product of a compound HO-Z-OH with a carbonyl halide or diaryl carbonate, the blocks (A) and (B) being linked by groups -R 11 -COO-, -R 11 -NHCOO-, -R 11 -OCONH-R 11 - NHCOO- or -COO-, in which R 11 or the C atom is linked to Si, or by -O- or -OCOO- joining a silicon atom to a group Z; wherein V 1 is an olefinic or acetylenic optionally halogenated aliphatic or cycloaliphatic monovalent hydrocarbon radical. In examples, a chlorine-terminated polydimethylsiloxane is reacted with an excess of bisphenol A, in Example 6 after an initial reaction with diphenylol sulphone, then with phosgene; the end groups derive from allyl alcohol (allyl phenol in Example 3) added partly before, partly after the phosgenation, or allyl isocyanate (Example 1) added after; the products contain 61-64% polysiloxane, curing to elastomers, or 15% polysiloxane (Example 5) curing rigid. The products of Examples 2 and 3 are reacted with methyldiacetoxysilane in toluene i.p.o. a Pt catalyst to give a solution which cures in moist air, after addition of stannous octoate or dibutyltin dilaurate catalyst; the product of Example 4 is milled with fume silica and dicumyl peroxide and cured to a rubber.

Use of Electric Fields to Monitor the Dynamical Aspect of Cell Behavior in Tissue Culture

Abstract: Mammalian cells can be cultured and therefore studied in vitro. Normally, the cells' morphology and other static properties are observed with the aid of a light microscope. A method is described here that allows observation of the dynamical aspects of cultured cells. Mammalian fibroblasts are cultured in polystyrene dishes that contain evaporated gold electrodes. As the cells attach to the electrodes, their presence and their motion is directly reflected in the measured impedance.

The relationship of worker productivity to cognitive dissonance about wage inequities.

Abstract: 2 hypotheses derived from dissonance theory were tested: (a) when a person is paid by the hour his productivity will be greater when he perceives his pay as inequitably large than when identical pay is perceived as equitable, and (b) when a person is paid on a piecework basis his productivity will be less when he perceives his pay is inequitably large than when he perceives identical pay as being equitable. The first hypothesis was sustained (p < .05) in a laboratory experiment in which 11 male college Ss earned $3.50 per hour and were induced to feel overpaid and 11 control Ss earned $3.50 per hour and were induced to feel fairly paid. The second hypothesis was sustained (p < .01) in a factorial design study in which 36 Ss were paid either $3.50 per hour or 30 cents per piece, and felt either equitably pair or inequitably overpaid. In both studies an identical task, in which Ss interviewed the general public, was used.