fibre coatings and the mechanical properties of carbon fibre/nylon 6 composites

the authors studied the effect of seven kinds of coating on the mechanical properties of 20 wt. percent carbon fibre/nylon 6 composites. it was found that most coatings did not have any significant effect on the properties, a pes (polyether sulphone) coating raised the properties slightly (by about 5 percent ) and an ep (epoxy) coating re..

molecular assembling technology for electrochemical and optical enzyme-sensing films

several different molecular film technologies have been developed for fabricating biosensors, including electrochemical codeposition of nonconductive polymer film and enzyme: electrochemical fabrication making a molecular interface of conductive polymer for an enzyme: and protein lb film fabrication. a microenzyme sensor for glucose was f..

compact ecr-source of ions and radicals for semiconductor surface treatment

a compact microwave ecr-source of ions and free radicals has been fabricated. it includes a stainless steel tube, ceramic microwave input and permanent smco/sub 5/ ring-shaped magnets. its working pressure range is 10/sup -4/-10/sup -2/ torr using ar, h/sub 2/ n/sub 2/ and some other gases. the maximum ion current density in a hydrogen di..

reproducible electrodeposition of biomolecules for the fabrication of miniature electroenzymatic biosensors

a technique has been developed for reproducibly depositing an enzyme or other biomolecule onto the surface of a conductor specifically, glucose oxidase has been electrodeposited onto the surface of an electrode previously electroplated with platinum black. this deposition takes place without the assistance of an electropolymerizable matri..

fiber optic biosensing based on molecular recognition

a review is given on the use of specific biorecognition elements (such as enzymes or optically active receptors) in optical sensing of chemical species. in enzyme-based sensors various options exist' depending on which species is immobilized, assays for substrates (such as glucose, lactate or cholesterol), enzymes (such as carboxylesteras..

submicron mechanically planarized shallow trench isolation with field shield

submicron transistors and test structures fabricated using a mechanically planarized shallow trench isolation scheme which incorporates a poly-si trench field shield are discussed. the resulting devices have well-behaved transistors and excellent isolation characteristics on test structures with 0.6 mu m isolation. replacing field oxide a..

tunneling processes between quantum wires and two-dimensional electron states

the authors have studied tunneling processes between two independently contacted two-dimensional electron gas systems which are separated by a barrier of 195 aa. resonant tunneling processes between the quantized states in the different channels. structuring the upper channel into quantum wires, they also investigate tunneling processes b..

an evaluation of victorian industry for potential application of renewable energy

the authors presents the results of a study carried out by the solar energy council in early 1990. the study assessed the potential for renewable energy resources and technologies to contribute to the energy needs of victorian manufacturing industry. of the renewable resources, solar thermal, geothermal and biomass offer the most potentia..

dry cleaning procedure for silicon ic fabrication

a complete, fully integrated dry wafer cleaning procedure based on remote plasma processing is introduced. included are all the steps needed to prepare a resist coated wafer following a field oxide etch for further processing. experimental results based on surface analysis and mos electrical measurements demonstrate its adequate performan..

fabrication of nanometer structures using stm

the application of scanning tunneling microscopy (stm) to the fabrication of nanometer scale structures is reviewed representative examples are given rather than trying to present a complete overview of the surface modification procedures employed so far. the issues of writing speed as well as the ultimate decrease of the size of the writ..