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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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16-05-2013 дата публикации

Materials Formulations for Human Tissue Simulation

Номер: US20130122477A1
Автор: Everett Richard K.
Принадлежит:

A gel formulation for use as simulated tissue for ballistic testing includes a mixture of gelatin, a glycol, such as ethylene glycol, and water. The gel may be formed in a mold to simulate a body part, such as an organ. A ratio of gelatin to glycol may be varied, depending on the body part to be simulated. An anatomic model may be formed by incorporating simulated organs formed with different gelatin to glycol ratios. 113-. (canceled)14. An anatomic model , comprising:a skeletal component;at least one simulated organ supported on or within said skeletal component, said at least one simulated organ comprising the molded formulation of at least 2 vol. % gelatin, at least 5 vol. % of a glycol, and water; andoptionally, at least one sensing instrument in at least one of said simulated skeletal component and said simulated organ.15. The anatomic model of claim 14 , further comprising claim 14 , simulated muscle tissue surrounding said simulated skeletal components.16. The anatomic model of claim 14 , wherein said simulated muscle tissue comprises 10% to 30% by volume gelatin and from 70% to 90% by volume water.17. A method of making a simulated human tissue claim 14 , comprising:forming a liquid mixture comprising gelatin, a glycol and water; andsetting the mixture to form a molded gel formulation with a shape which simulates a human tissue.18. The method of claim 17 , wherein the forming of the mixture includes combining the glycol with a hydrated gelatin which includes at least some of the water.19. The method of claim 18 , wherein the hydrated gelatin comprises at least 70 vol. % water.20. The method of claim 17 , wherein the method further includes:forming a first simulated tissue having a first gelatin:glycol ratio; andforming a second simulated tissue having a second gelatin:glycol ratio higher than the first ratio.21. The method of claim 20 , wherein the first ratio is at least 0.1:1 and the second ratio is at least 0.15:1.22. The method of claim 17 , wherein the ...

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Номер записи: 1
02-05-2000 дата публикации

In situ-formed debond layer for fibers

Номер: US6056907A
Автор: Alan S. Edelstein, John H. Perepezko, Richard K. Everett
Принадлежит: US Department of Navy

A debonding layer is formed on fibers such as silicon carbide fibers by fing a thin film of a metal such as nickel or iron on the silicon carbide fibers and then annealing at a temperature of about 350-550° C. to form a debond layer of a metal silicide and carbon. These fibers having the debond coating can be added to composite forming materials and the mixture treated to form a consolidated composite. A one heating-step method to form a consolidated composite involves inserting the silicon carbide fibers with just the initial metal film coating into the composite forming materials and then heating the mixture to form the debond coating in situ on the fibers and to form the consolidated composite. Preferred heating techniques include high temperature annealing, hot-pressing, or hot isostatic pressing (HIP).

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Номер записи: 2