polymeric prosthetic devices and materials. january 1970-may 1989 (citations from the u.s. patent database). rept. for jan 70-may 89

this bibliography contains citations of selected patents concerning design aspects and production methods pertaining to polymeric prosthetic devices which are implanted into the human body fabrication techniques, specific material compositions, and surface treatment methods used to enhance biocompatibility are presented dental and bone pr..

halogenation enhances carbon-fiber/epoxy composites: interlaminar shear strength is increased by an inexpensive treatment. ntis tech note

this citation summarizes a one-page announcement of technology available for utilization. recent work has identified a new, relatively-inexpensive surface treatment for carbon fibers that enhances the interlaminar shear strength (ilss) without altering the tensile strength significantly. one of the factors that limits the usefulness of ca..

evaluation of the interfacial bond properties between carbon phenolic and glass phenolic composites

the effects of moisture and surface finish on the mechanical and physical properties of the interfacial bond between the carbon/phenolic (c/p) and glass/phenolic (g/p) composite materials are presented. four flat panel laminates were fabricated using the c/p and g/p materials. of the four laminates, one panel was fabricated in which the c..

controlled interphases in glass fiber and particulate reinforced polymers: structure of silane coupling agents in solutions and on substrates. reprint: controlled interphases in glass fiber and particulate reinforced polymers: structure of silane couplin

the structure of silane coupling agents in solution and on solid substrate is reviewed with special emphasis on the fundamentals of structural development. factors affecting the molecular weight, adsorption behavior, and chemical bond formation are discussed molecular aspects of the reinforcement mechanisms are discussed in relation to th..

mid-year financial plan, fiscal year 1954, process development

this document contains two letters dated october 1953 concerning the fabrication of tubes for savannah river plant (srp). the first letter discussed a meeting to disclose the financial plan. the second answered several questions on the preparation of the tubes. this included the tolerance with respect to the eccentricity, surface finishin..

agricultural outlook

usda's monthly agricultural outlook presents a concise overview of the agricultural economy and its major components through situation and outlook briefings. the comprehensive review of latest developments and future uncertainties on the food and fibers scene offers supply, demand, and price analyses and forecasts. consistent with its int..

the weathering resistance of some cotton polyester corespun ducks exposed at innisfail, queensland

two samples of cotton/polyester corespun duck from a previous trial, four samples representative of current production for the australian army, and two experimental samples expected to have improved resistance to weathering were assessed for performance in the tropics. two of the samples had much better resistance to weathering than the o..

functional design of an automated instructional support system for operational flight trainers

functional requirements for a highly automated, flexible, instructional support system for aircrew training simulators are presented. automated support modes and associated features and capabilities are described. hardware and software functional requirements for implementing a baseline system in an operational flight training context are..

les fibres vegetales et leurs utilisations (vegetable fibers and their uses)

the paper summarizes the processing and use of vegetable fibers with special emphasis on the development of this industry in the small-scale industrial sector in various countries. covered are several subjects relative to vegetable fibers from the processing to manufacturing phases, including the equipment to be used at several stages, un..

direct shipment of louisiana cotton to domestic mills or export outlets

assembly and transportation of cotton from widely scattered production areas to domestic mills and export outlets has been recognized as a major problem area in cotton marketing. it is the purpose of this report and the reports of the other participating states to provide information to help cotton producers and shippers select alternativ..