rubbing method for sbe-lcd fabrication

the tn-lcd driven by a simple multiplexing method has seen many applications as a flat panel display due to its advantages of low cost, low power consumption and compact dimensions. however, its visibility at high-level multiplexing above 640*200 pixels limits its practical uses. the sbe-lcd can provide good image quality with a multiplex..

characterization of interfacial zones in unidirectional composite materials carbon fibers/epoxy matrix from relaxation phenomenon in viscoelasticity

the dynamic mechanical properties by forced vibrations method show a great deal for studying in situ interfacial phenomenons in composite materials. the authors show the effect of the reinforcement (carbon fiber), with different surface treatments, on relaxation phenomenons of epoxy matrix. the presence of an interphase zone is displayed ..

study of a silicon surface after reactive ion-plasma sputtering of the sio/sub 2/ layer

auger electron spectroscopy has shown that reactive ion-plasma sputtering (dry etching) of dielectric films (sio/sub 2/, si/sub 3/n/sub 4/) on silicon under conditions providing for a high etching selectivity results in contamination of the silicon near-surface layer with residual products, mostly carbon. the elemental concentration profi..

r and d of optics for high power cw co/sub 2/ lasers in the japanese national program

substrate material preparation, surface finishing and coating techniques as well as optical evaluation methodology were developed to design and manufacture metal reflective optics and transmissive optics made of znse and kcl. these optics were used successfully for high power cw co/sub 2/ laser of up to 20 kw. on the basis of these techno..

variable capacitance neuron model-a new hardware for a bionics computer

a new nonlinear output neuron model was developed. a variable capacitance was used to imitate the signal-transmitting synapse, and the membrane potential was used as the control

methods of contactless inspection of the thickness of polymer coatings on metallic components in a flow line

the methods and means of radiowave, thermal, and optical contactless measurements of the thickness of polymer coatings on metallic components are examined. on the basis of the analysis of the methods and means of inspection and special features of the interaction of radiations with the materials of the coating and the substrate, it is sho..

diffusion waveguides on cadmium sulphide and zinc sulphide single-crystal substrates

new results are reported of the fabrication and investigation of waveguides on zns and cds substrates. a technique is described for producing waveguides by high-temperature diffusion in selenium vapours, yielding waveguides with attenuation of about 10 db/cm. new data are also given of measuring the depth and attenuation in diffusion wave..

an apparatus for batch fabrication of micromechanical elements by ion beam machining

an apparatus has been constructed for ion beam milling of micromechanical structures. a 3 cm kaufman type source is used to provide argon ion current densities and energies of up to 25 ma/cm/sup 2/ and 1.5 kv, respectively. stencil masks prepared by chemical milling are used to produce an array of microbeams allowing batch fabrication of ..

improvement of optical fiber strength for submarine cables

the achievement of a good reliability of optical cables has required high fiber strength. the surface treatment of preforms as well as drawing conditions used in order to realize this improvement are described. the fiber drawing has been performed using a graphite resistance furnace which can be operated with its top either closed or open..

information services in the field of ferrous metallurgy in the german democratic republic

information and documentation services of the ore mining, metallurgical, and potash ministry of the german democratic republic are described. lists of articles from periodicals, inventions, firms' literature, research reports, and other scientific/technological reports are stored in a computer memory the related information profile covers..