adsorption of spin labeled polymers on carbon fibers for composite interface studies

the adsorption of spin labeled epoxy model compounds and a polymer from solution onto a series of im6 carbon fibers having incremental oxidative surface treatments was measured. by weight, the amount of epoxy polymer adsorbed was two orders in magnitude greater than that of the model compounds, although the polymer coverage of the fiber s..

influence of surface property of carbon fiber on time and temperature dependences of ilss of cfrp

for carbon fiber reinforced plastics (cfrp) using six kinds of carbon fibers with different surface conditions, ilss was measured from 25 degrees c to 200 degrees c at various cross head speeds (chs), and the influence of surface structure of carbon fiber on the high temperature ilss of cfrp was investigated. ilss measured at high tempera..

proceedings of the third international symposium on ultra large scale integration science and technology. ulsi science and technology 1991

the following topics were dealt with' device structure and technology: submicron device and process modelling: lithographic submicron feature patterning: submicron feature patterning using etching: shallow junctions and ohmic contacts: thin gates process-induced damage and contamination: rapid thermal processing: planarisation techniques:..

aluminum contact filling and planarization with pulsed laser

a simple and attractive method using a pulsed laser for metal planarization and contact filling with aluminum-based metallization has been demonstrated. with this method, mosfets have been fabricated with titanium salicide process and showed minimal device degradation as compared to controls

mbe regrowth with hydrogen cleaning and its application for the fabrication of surface tunnel transistors

regrown interfaces of gaas and gasb, which were prepared by hydrogen cleaning prior to molecular-beam epitaxy (mbe) regrowth, were characterized. among various hydrogen cleaning methods explored in this study, the absence of carrier depletion around the interface was reproducibly obtained by cleaning with either hydrogen gas or its radica..

smt' a technology in transition

the explosion of smt over the last 10 years has not only resulted in finer-pitch components and more sophisticated electronic products, it has also been responsible for radical changes in pcb fabrication technology. since smt is a dynamic technology, changes in fabrication methods and materials are still taking place. the author discusses..

biotechnological applications of fiber-optic sensing' multiple uses of a fiber-optic fluorimeter

the development of a simple but very effective modular fiber-optic fluorimeter is described. using this instrumentation, different fiber-optic chemo- and biosensors are investigated to demonstrate the application of optical sensors in biotechnology. to obtain information about vital biomass concentrations and the metabolic state of organi..

optical-fibre sensors by silylation techniques

the silylation technique is one of the most widely used for optrode realization. it generally involves an organosilicon compound that reacts with an external support or directly on the surface of the fibres with one or more functional groups and gives the supports a new functionality. silylation can be performed either on external glass o..

covalent immobilization of amphiphilic monolayers containing urease onto optical fibers for fluorimetric detection of urea

the authors report results for an enzyme reaction that is covalently immobilized onto the surface of a membrane, which in turn is immobilized onto the surface of an optical fiber. this provides a completely stabilized monolayer/protein system that is compact and potentially amenable to remote sensing. urease was chosen for these investiga..

fiber-optic remote detection of pesticides and related inhibitors of the enzyme acetylcholine esterase

the authors present a novel method for the remote detection of inhibitors (e.g. pesticides) of the enzyme acetylcholine esterase (ache) with a fiber-optic photometer based exclusively on the use of solid-state optoelectronic components including light-emitting diodes and photodiodes. the method employs a yellow synthetic enzyme substrate ..