greater flexibility at reduced cost. some instances of the application of the pacos picture processing system

pacos, (pattern considering system) was first developed for the description of the structure of nuclear fuels. this eliminated the long and toilsome manual labour required to obtain the necessary data. determining the distribution of the grain sizes in a sintered material is another application of this system. various methods of improving..

the preparation of stoichiometric mercury cadmium telluride surfaces

a technique involving cathodization of an anodized surface has been proposed as a surface treatment of mercury cadmium telluride substrates in the fabrication of infrared-sensitive devices. the resultant surface was analyzed with x-ray photoelectron spectroscopy and compared with surfaces produced by cleavage, sputtering, and chemical etc..

a lift-off method for patterning enzyme-immobilised membranes in multi-biosensors

a method for preparing enzyme-immobilized of multi-biosensors has been developed and demonstrated by fabricating a multi-biosensor for glucose and urea, based on the ph-selective ion-sensitive field effect transistor. the enzyme solution, containing glutaraldehyde, is spin coated onto a wafer covered with a patterned photoresist the resul..

schottky and field-effect transistor fabrication on inp and gainas

schottky contacts with barrier heights of 0.76 ev on n-type inp and 0.65 ev on n-type gainas are realized by a new surface treatment. these contacts are used as a gate for the fabrication of field-effect transistors (fets) on these materials. extrinsic transconductances of 100 and 7.5 ms/mm are measured on gainas and inp fets, respectivel..

characterization of a 'solid-state' polyaniline-based transistor' water vapor dependent characteristics of a device employing a poly(vinyl alcohol)/phosphoric acid solid-state electrolyte

a 'solid-state' polyaniline-based microelectrochemical transistor is described. the transistor can be fabricated by the chemical modification of a microfabricated approximately 3 mm*3 mm chip consisting of an array of eight, individually addressable pt microelectrodes, each approximately 50 mu m long* approximately 2 mu m wide* approximat..

effects of moisture on the compressive and interlaminar shear strengths of aramid-epoxy composites

the effects of moisture on the compressive and interlaminar shear strengths of aramid fiber reinforced epoxy matrix composites were investigated. the compressive strengths were measured with a celanese fixture, the interlaminar shear strengths were inferred from the results of three point bend tests. the influence of fiber surface treatme..

moisture absorption characteristics of aramid-epoxy composites

tests were conducted measuring the changes in weight of aramid fiber reinforced epoxy matrix composites during exposure to humid air. composites containing surface treated fibers and composites containing fibers without surface treatment were tested. in addition, for the purpose of comparison, the weight changes of glass fiber reinforced ..

investigation of passivation films for a-si'h photoreceptors ii. surface modification of a-sic'h films by cf/sub 4/ plasma treatment

the contact angle of a water drop on a-sic'h films increases up to 95 degrees after the cf/sub 4/ plasma treatment. hydrophobic inorganic layers containing c-c (or ch/sub 2/) and c-fn(n=1-3) bonds are formed on the surface. a new a-si'h photoreceptor with the cf/sub 4/ plasma treated a-sic'h films for the surface passivation layer was fab..

enzyme microsensor for glucose with an electrochemically synthesized enzyme-polyaniline film

an enzyme microsensor for glucose was fabricated by the electro-chemical polymerization method. a glucose oxidase-entrapped polyaniline (god-polyaniline) film was deposited on the top of a platinum fibre (50 mu m in diameter) by the electrochemical oxidative polymerization of aniline in a ph 7 buffer solution in the presence of glucose ox..

sem/xps analysis of fractured adhesively bonded graphite fibre surface resin-rich/graphite fibre composites

samples of graphite fibre-reinforced polyimide were fabricated allowing the resin to accumulate at the composite surface. these surface resin-rich composites were then bonded together and tested for lap shear strength both before and after thermal ageing. lap shear strength did not appear to show a significant improvement over that previo..