Abstract: An optogalvanic effect (OGE) detection system utilizes an intracavity sample cell and a circuit that provides low noise stable excitation and maintenance of a radio frequency (rf) driven gas discharge within the sample cell and a direct current output proportional to the if driving voltage, associated monitoring devices and software. When an optical stimulus interacts with the discharge, any electrical change in the discharge can be simply determined with high precision and accuracy by measuring the impedance of the discharge via a measurement of the direct current output. In a preferred embodiment the rf gas discharge is created with a series resonant oscillator with two push pull sections connected together to generate the high voltage signal. A current source provides a low noise stable current to power the oscillator sections. A band pass amplifier filters the current of the discharge prior to measuring it.

Abstract: An optogalvanic effect (OGE) detection system utilizes an intracavity sample cell and a circuit that provides low noise stable excitation and maintenance of a radio frequency (rf) driven gas discharge within the sample cell and a direct current output proportional to the if driving voltage, associated monitoring devices and software. When an optical stimulus interacts with the discharge, any electrical change in the discharge can be simply determined with high precision and accuracy by measuring the impedance of the discharge via a measurement of the direct current output. In a preferred embodiment the rf gas discharge is created with a series resonant oscillator with two push pull sections connected together to generate the high voltage signal. A current source provides a low noise stable current to power the oscillator sections. A band pass amplifier filters the current of the discharge prior to measuring it.

Abstract: A method to obtain a catalyst of transition metals supported on a carbonaceous material, via impregnation, with a solution of metal-thiourea complex, obtained from precursor salts. The formation of the sulfur on the surface of the support occurs through the thermal decomposition of the complex. The obtained catalysts are applicable toward the direct liquefaction of coal.

Abstract: This invention relates to collet-type splices and collet-type dead ends and methods for splicing together two electricity transmission cables or terminating one electricity transmission cable, the cables comprising a composite core surrounded by a conductor. The collet-type fittings use a collet inside a collet housing to hold the composite cores without penetrating or otherwise weakening the core itself. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet and the composite core. The collet seats within the collet housing thereby holding the composite core with frictional forces. The design of the collet enables the composite core to stretch longitudinally through the collet to strengthen the frictional hold.

Abstract: A method to obtain a catalyst of transition metals supported on a carbonaceous material, via impregnation, with a solution of metal-thiourea complex, obtained from precursor salts. The formation of the sulfur on the surface of the support occurs through the thermal decomposition of the complex. The obtained catalysts are applicable toward the direct liquefaction of coal.

Abstract: This invention relates to collet-type splices and collet-type dead ends and methods for splicing together two electricity transmission cables or terminating one electricity transmission cable, the cables comprising a composite core surrounded by a conductor. The collet-type fittings use a collet inside a collet housing to hold the composite cores without penetrating or otherwise weakening the core itself. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet and the composite core. The collet seats within the collet housing thereby holding the composite core with frictional forces. The design of the collet enables the composite core to stretch longitudinally through the collet to strengthen the frictional hold.

Abstract: This invention relates to collet-type splices and collet-type dead ends and methods for splicing together two electricity transmission cables or terminating one electricity transmission cable, the cables comprising a composite core surrounded by a conductor. The collet-type fittings use a collet inside a collet housing to hold the composite cores without penetrating or otherwise weakening the core itself. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet and the composite core. The collet seats within the collet housing thereby holding the composite core with frictional forces. The design of the collet enables the composite core to stretch longitudinally through the collet to strengthen the frictional hold.

Abstract: This invention relates to collet-type splices and collet-type dead ends and methods for splicing together two electricity transmission cables or terminating one electricity transmission cable, the cables comprising a composite core surrounded by a conductor. The collet-type fittings use a collet inside a collet housing to hold the composite cores without penetrating or otherwise weakening the core itself. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet and the composite core. The collet seats within the collet housing thereby holding the composite core with frictional forces. The design of the collet enables the composite core to stretch longitudinally through the collet to strengthen the frictional hold.

Abstract: The invention concerns an adjustable charger (100) and a method (700) of using same. The adjustable charger can include a base portion (110) and an adjustable cradle (112) that can receive a single unit electronic device (130) having a display (132) or a flip-type electronic device (134) having a display (136). The adjustable cradle can position the single unit electronic device in a first viewing position and can position the flip-type electronic device in a second viewing position. In one arrangement, the first viewing position can be an optimal viewing position for a display of the single unit electronic device. In addition, the second viewing position can be an optimal viewing position for a display of the flip-type electronic device.

Abstract: This invention is related with a procedure for the obtention and purification of 2-(2-nitrovynil)-furan in a step of reaction starting from furfural and nitro methane using isobuthylamine as a catalyst and activated coal as an adsorbent, achieving a product with pharmaceutical quality. This technology appreciably reduces the environmental impact through eliminations of the gassy residual from the system through absorption in water. The pharmaceutical composition proposed in this invention contains 2-(2-nitrovynil)-furan and presents a potent action against Coccidia at low concentrations.

Abstract: A radio frequency switch assembly (120) is mountable between an antenna port (110) and a detachable antenna (130) of a radio communication device assembly (100) to provide an interface for a radio frequency accessory. The switch assembly (120) has a radio interface port (123), a radio frequency accessory port (125), and an antenna interface port (127), and associated contacts (207, 216, 223). A mechanical switch alternatively interconnects the radio interface port (123) with the radio frequency accessory port (125) or with the antenna interface port (127). Preferably, the switch includes a conductive probe (213) that continuously engages the radio interface port contact (207) while being slidable to electrically interconnect with the antenna interface port contact (223) or with the radio frequency accessory port contact (216).

Abstract: A device assembly (100) has a switch actuator assembly (150) with a sealed interface. The device assembly (100) includes a housing (120) having an opening (126) that provides access to an internal switch (135). A switch actuator (160) selectively actuates the switch (135) through the opening (126). The switch actuator (160) includes a seal (164) that is disposed around the opening (126). An external actuator cover (180) includes a seal support member (185) that positions the seal (164) against a seal mount (128) about the opening (126), when the actuator cover (180) is depressed.

Abstract: A unitarily molded seal membrane (310) includes an integral microphone support (304) which includes a diaphragm (306). A cavity wall (406) is located about said diaphragm (306) on one side of the seal membrane (310). The cavity wall (406) defines a cavity area (410) for receiving a microphone (504). The cavity wall aligns the diaphragm (306) in front of the microphone (504), thereby allowing for environmental sealing of the microphone (504).