Abstract: A method for determining copper (I) concentrations in water or seawater samples. In the method a probe is dipped into the sample for a time sufficient to produce a color change, removed and compared to a color standard to determine the concentration. The probe includes a substrate and an impregnate, bathocuproine, which complexes to copper (I) to produce a colored complex that is not toxic or less toxic to marine organisms than copper (I). The substrate is an ionomeric polymer having hydrophobic chains with hydrophilic cation exchange cites. In a preferred embodiment the substrate is a sulfonated perfluoropolymer.

Abstract: Apparatus for the laser guidance of the aiming function used by the shooter, and fiber optics to increase the usability of the weapon. One type of adjustment is provided by a vertically movable and vertically adjustable cam member; and a second adjustment is provided through arm linkage which adjusts a rotatable laser holding member. Futher features are the provision of a novel adjustable base means to adjust the laser for horizontal (windage) adjustment and also provided a standard of testing feature for testing vertical alignment. Fiber optics gives the shooter the means by which he is able to aim and shoot at farther targets in comparison to the lasers' limits of rangeability; and this fiber optic feature supplements the laser feature of the sight device, and the sight provides a novel sight pin feature. An adjustable lens device provides that the laser beam can be adjustably expanded rather than constricted.

Abstract: An electron emitting device characterized by a monocrystalline substrate, a plurality of monocrystalline nanomesas or pillars disposed on the substrate in a spaced relationship and extending generally normally therefrom, monocrystalline self-assembled tips disposed on top of the nanomesas, and essentially atomically sharp apexes on the tips for field emitting electrons. A method for making the emitters is characterized by forming a gate electrode and gate electrode apertures before forming the tips on the nanomesas.

Abstract: An actuator composed of a plurality of telescoping piezoelectric members ch produces a displacement that is the sum of the length of the members.

Abstract: A composition including a solid substrate, a metal chelant, and a saturated hydrocarbon linker attached between the substrate and the chelant. The position is used in the method for removing from a liquid medium a metal having atomic number equal to or greater than 27, the method including the steps of passing the liquid medium through the composition that is in solid, particulate form and separating the medium from the composition.

Abstract: Improvement in resolution in terms of minimum feature sizes and proximity fects in an electronic mask is attained by making the mask using a high voltage electron beam which deflects or blocks backscattered electrons. The novel mask structure comprises a transparent support, an absorber layer disposed on said support, a dielectric layer disposed on said absorber layer, and a resist layer disposed on said dielectric layer. It is the dielectric layer which is credited for improving resolution in said mask which can be used a multiple number of times in printing a pattern for various applications, including electronic devices and integrated circuits.

Abstract: A porous material of desired porosity and pore size is made by mixing a piculate material and fungible beads that are thermally decomposable until the desired distribution is attained; compacting the mixed material and beads to form a green body that has sufficient strength to be handled where the beads are undecomposed; and compacting and heating the green body to fuse the material particles and to decompose the beads to gas.

Abstract: A vertically disposed apparatus used to make core-clad optical fibers inces an inner elongated cylinder removably closed at the top and provided at the bottom with an inner exit port of a smaller diameter than the inner cylinder and an outer cylinder, disposed around the inner cylinder, removably closed at the top and provided at the bottom with an outer exit port of a smaller diameter than the outer cylinder. The inner exit port is of a smaller diameter than the outer exit port and is disposed directly above the outer exit port. The apparatus also includes a heater for heating the inner and outer cylinders and acces to the inner and the outer cylinders for individually pressurizing inner and outer cylinders.

Abstract: Ceramic structure and process for its preparation wherein the structure is omposed of a matrix having therein parallel and spaced reinforcing fibers and strands of backfilled ceramic material, the strands being parallel to the reinforcing fibers; and wherein the process includes the steps of arranging tows of fugitive and reinforcing fibers parallel to each other to form a fiber preform, contacting the preform with a matrix precursor whereby the precursor deposits around the fibers, removing the preform from the precursor wherein the fibers are coated with the precursor, drying the preform to solidify the precursor on the fibers and to convert the precursor to a matrix form, calcining the preform to convert the matrix form on the fibers to another matrix form, removing the fugitive fibers from the preform to form channels therein, backfilling the channels with a material, and hot pressing the preform for densification purposes to form the ceramic structure containing spaced fibers and spaced backfilled materi

Abstract: Ceramic structure having porosity of 10-80% is characterized by a solid cmic matrix having therein elongated and parallel channels, the structure is made by a process that includes the steps of:(a) arranging tows of elongated fibers parallel to each other to form a fiber preform,(b) contacting the fiber preform with a matrix precursor whereby the matrix precursor deposits around the fibers,(c) removing the fiber preform from the matrix precursor,(d) drying the fiber preform,(e) calcining the fiber preform,(f) hot pressing the structure containing the fugitive fibers therein, and(g) removing at least some of the fibers to form channels in the structure.

Abstract: In one embodiment the article includes a metal support having a top surface, a well provided in the top surface of the support and extends downwardly into the support, the well is defined by a floor at the bottom thereof, second fibers anchored in spaced relationship in the floor of the well and extending therefrom to a level short of the top surface of the support, a diamond substrate disposed over and covering the well, the substrate is larger than the well and has portions thereof in direct or indirect contact with the support, a metal layer adhering to the substrate, first fibers anchored in spaced relationship in the metal layer and extending therefrom into the well to a level short of said well floor, the substrate being smaller than the support.

Abstract: A field test kit for determining quantity of hydrogen sulfide in a liquid st sample. The test kit includes a test container with an opening for a liquid test sample containing hydrogen sulfide gas and a cap provided over the opening. The cap has calorimetric particulate indicator on its top inside surface. A silicone barrier disposed over the indicator protects the indicator from contact with the test sample.

Abstract: A rod feeder assembly composed of elongated tubular members arranged in vical courses and disposed in a box, the tubular members being flush at their downstream end and provided with a loading section at the upstream or the opposite end. The tubular members are of the same length in the same course but are shorter in the upper courses. The method for automatically feeding rods into a matrix includes the steps of randomly disposing the rods on the loading sections of the tubular members, aligning and positioning the rods in the tubular members by vibrating the tubular members in an inclined disposition, and transferring the rods from the rod feeder assembly to the matrix.

Abstract: An electronic device characterized by a GaAs substrate and a base disposed n the substrate, the base comprising InAs channel layer, AlSb layer above the channel layer, In.sub.x Al.sub.1-x As.sub.y Sb.sub.1-y layer containing at least In, Al, and As disposed above the AlSb channel layer, InAs cap layer disposed above and in contact with the In.sub.x Al.sub.1-x As.sub.y Sb.sub.1-y layer disposed below the InAs channel layer and in contact with the substrate, p.sup.+ GaSb layer disposed within the AlSb layer, Schottky gate with a pad disposed on and in contact with the In.sub.x Al.sub.1-x As.sub.y Sb.sub.1-y layer, at least one ohmic contact disposed on the InAs cap layer, and a trench extending through the base to the substrate isolating the gate bonding pad from the device and providing a gate air bridge which prevents contact between the gate and the InAs layer.

Abstract: An optical fiber termination connector includes an elongated structure with chamber extending therethrough open at both ends, a fiber disposed in the chamber and spaced therefrom, a solid first material disposed in the chamber around the fiber, and an air gap in the chamber around the end of the fiber. The process includes the steps of locating a fiber in a chamber disposed vertically, with the end of the fiber extending beyond the lower portion of chamber; dipping a lower portion of the chamber into a first material in liquid form so that the first material enters the lower portion of the chamber to a level below an exit port located in the lower portion of the chamber; solidifying the first material disposed in and around the chamber and the fiber; above the solid first material; polishing the lower end of the fiber until it is flush with the chamber at the lower thereof; and removing the first material to form an air gap between the fiber and the lower portion of the chamber.

Abstract: The use of lactic acid or its derivative in compositions to etch or polish materials containing indium phosphide results in treated surfaces that have reduced surface roughness compared to the surfaces treated with compositions devoid of lactic acid or its derivative. Indium phosphide surfaces treated with compositions containing lactic acid can have treated surfaces that are smooth or mirror-like, meaning that surface irregularities thereon are less than about 50 .ANG..

Abstract: Inclusion complexes have an organic guest molecule dye with an electron dr portion, an electron acceptor portion and a hydrophobic tail portion disposed within an organic carbohydrate host molecule. The dye in the inclusion complexes has improved thermal stability compared to itself. The complexes can be used to form a solution-cast film disposed on a substrate wherein the film thickness is up to about 20 microns and the film is made of anisotropically self-aligned (self-poled) inclusion complexes.

Abstract: Underplating between a metallic plating base and a photoresist deposited reon can be reduced or eliminated by a method of fabricating a microstructure which includes the steps of:(a) depositing a plating base on the adhesion layer;(b) depositing on the plating base a sacrificial layer of a material that reduces or eliminates underplating on the plating base compared to underplating in absence of the sacrificial layer;(c) depositing a photoresist on the sacrificial layer;(d) exposing, developing and removing the exposed photoresist from the substrate to uncover a portion of the sacrificial layer;(e) removing the sacrificial layer portion from the substrate to uncover a portion of the plating base; and(f) depositing a metallic material on the uncovered plating base under the influence of electrical current.

Abstract: This invention pertains to hydrocarbon fuel composition and deicing compoion prepared with a compound selected from the group consisting of acetals, ketals, esters, derivatives thereof and mixtures thereof; and a process for deicing a substrate using the noted deicing composition.

Abstract: In a system containing an electron field emitter array characterized by aying diamond powder to a substrate and affixing the powder thereto, the diamond powder being composed of particles having sharp tips which are adapted to emit electrons in a vacuum and in an electric field, which electrons impact a phosphor layer disposed on an anode spaced above the tips of the diamond powder particles.