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heat thawing system
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fixation by freezing and vacuum drying while specimens are simultaneously oriented directly on the microscope viewing stage. This new preparation technique, which minimizes surface tension deformation and ice crystal formation on the specimen, also reduces the possibility of breaking or distorting delicate structures because specimen handling between stages of preparation is eliminated. The CryoDry freezing unit operates on electrical power and requires no refrigerants for sample preparation. The unit’s power supply provides variable temperature control from ambient to below -40°C with a direct temperature readout for continuous monitoring. The freezing unit is small, measuring 23 inches high and lt inches square at the base. Several units may be operated independently in the same vacuum system for batch specimen preparation. The CryoDry equipment is compatible with standard Varian VE-IO and PS-1OE vacuum evaporator systems and can be readily adapted to other systems. For vacuum systems using oil diffusion pumps, a CryoDry oil trap is also available to reduce oil backstreaming and eliminate oil vapour contamination of the specimens.
applied for in the United States, Britain, France, and three other countries. The company allows the use of the patents in manufactured appliances, and has established a oroduction canacitv of 200.000 pieces per-month at their Toydnaka Factory in Osaka. Figaro Engineering Inc, Japan Circle number 36 on Reader Enquiry Service card
Solid-state coulometer cell
An all solid-state coulometer cell has been developed by Sloan Research Industries, a subsidiarv of Sloan Technoloav Corooration. Initial studies were carried&t through a joint effort between SRI and a primary electro-chemical group. After termination of this contract, SRI continued development on its own. The new cells, which incorporate a solid electrolyte between
Varian Vacuum Division Circle number 35 on Reader Enquiry Service card Deoxidizing gas-sensing semiconductor
Figaro Engineering Inc (2-6-8, Hiuga, Tarumi-ku. Kobe. Janan) has recently developed a deoxidizing gas-sensing under the semiconductor marketed trademark TGS (Taguchi Gas Sensor). Composed of oxidized metals such as tin oxide, zinc oxide and ferric sesquioxide, TGS decreases in electrical resistance when it encounters deoxidizing gases such as methane, hydrogen, carbon monoxide, propane, alcohol, volatile oil, and acetylene. In many cases this change is large enough to be used directly without amplification. By combination with a buzzer, a relay, a solenoid valve, a bimetal or a motor, the gas sensor can serve as an alarm, a detector or a controller. Tests demonstrate that TGS markedly increases its conductivity as soon as it comes into contact with gas, and that it returns to the original value of electrical resistance when the gas has been removed. Conventional semi-conductors are deteriorated by steam. Due to improvements in chemical composition, sintering and other processes, TGS has been proved to withstand 50 thousand hours’ continuous exposure to steam without any change in characteristics. While Japanese electrical appliance manufacturers have marketed various detectors utilizing the new gas sensors, they now promise a much wider range of application in environmental pollution control, due to increased reliability. Figaro Engineering has applied for approximately 40 domestic patents concerning the new gas sensor. Of them, 8 patents have already been registered. In addition, international patents have been
A 9 cell coulometer from Sloan Technology.
gold and silver electrodes, are produced using vacuum thin film deposition techniques. Liquid electrolyte coulometer cells have been used in a number of timing and integrating applications in electronic circuitry. Operation is based on Faraday’s Law. In a typical application, deposited silver is transferred atom by atom from the gold to the silver electrode at constant current. When the silver is stripped from the gold, the internal resistance rises sharply and indicates that the time sequence is complete. Application to total electrical energy-measurement is also possible. Working orototvoes of the solid-state cells thus car-evaluated have an active area of 0.1 cm2 a thickness of less than 0.001 inch, and a charge capacity of several thousand microcoulombs. Sloan Technology Corporation, USA Circle number 31 on Reader Enquiry Service card
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fixation by freezing and vacuum drying while specimens are simultaneously oriented directly on the microscope viewing stage. This new preparation technique, which minimizes surface tension deformation and ice crystal formation on the specimen, also reduces the possibility of breaking or distorting delicate structures because specimen handling between stages of preparation is eliminated. The CryoDry freezing unit operates on electrical power and requires no refrigerants for sample preparation. The unit’s power supply provides variable temperature control from ambient to below -40°C with a direct temperature readout for continuous monitoring. The freezing unit is small, measuring 23 inches high and lt inches square at the base. Several units may be operated independently in the same vacuum system for batch specimen preparation. The CryoDry equipment is compatible with standard Varian VE-IO and PS-1OE vacuum evaporator systems and can be readily adapted to other systems. For vacuum systems using oil diffusion pumps, a CryoDry oil trap is also available to reduce oil backstreaming and eliminate oil vapour contamination of the specimens.
applied for in the United States, Britain, France, and three other countries. The company allows the use of the patents in manufactured appliances, and has established a oroduction canacitv of 200.000 pieces per-month at their Toydnaka Factory in Osaka. Figaro Engineering Inc, Japan Circle number 36 on Reader Enquiry Service card
Solid-state coulometer cell
An all solid-state coulometer cell has been developed by Sloan Research Industries, a subsidiarv of Sloan Technoloav Corooration. Initial studies were carried&t through a joint effort between SRI and a primary electro-chemical group. After termination of this contract, SRI continued development on its own. The new cells, which incorporate a solid electrolyte between
Varian Vacuum Division Circle number 35 on Reader Enquiry Service card Deoxidizing gas-sensing semiconductor
Figaro Engineering Inc (2-6-8, Hiuga, Tarumi-ku. Kobe. Janan) has recently developed a deoxidizing gas-sensing under the semiconductor marketed trademark TGS (Taguchi Gas Sensor). Composed of oxidized metals such as tin oxide, zinc oxide and ferric sesquioxide, TGS decreases in electrical resistance when it encounters deoxidizing gases such as methane, hydrogen, carbon monoxide, propane, alcohol, volatile oil, and acetylene. In many cases this change is large enough to be used directly without amplification. By combination with a buzzer, a relay, a solenoid valve, a bimetal or a motor, the gas sensor can serve as an alarm, a detector or a controller. Tests demonstrate that TGS markedly increases its conductivity as soon as it comes into contact with gas, and that it returns to the original value of electrical resistance when the gas has been removed. Conventional semi-conductors are deteriorated by steam. Due to improvements in chemical composition, sintering and other processes, TGS has been proved to withstand 50 thousand hours’ continuous exposure to steam without any change in characteristics. While Japanese electrical appliance manufacturers have marketed various detectors utilizing the new gas sensors, they now promise a much wider range of application in environmental pollution control, due to increased reliability. Figaro Engineering has applied for approximately 40 domestic patents concerning the new gas sensor. Of them, 8 patents have already been registered. In addition, international patents have been
A 9 cell coulometer from Sloan Technology.
gold and silver electrodes, are produced using vacuum thin film deposition techniques. Liquid electrolyte coulometer cells have been used in a number of timing and integrating applications in electronic circuitry. Operation is based on Faraday’s Law. In a typical application, deposited silver is transferred atom by atom from the gold to the silver electrode at constant current. When the silver is stripped from the gold, the internal resistance rises sharply and indicates that the time sequence is complete. Application to total electrical energy-measurement is also possible. Working orototvoes of the solid-state cells thus car-evaluated have an active area of 0.1 cm2 a thickness of less than 0.001 inch, and a charge capacity of several thousand microcoulombs. Sloan Technology Corporation, USA Circle number 31 on Reader Enquiry Service card