low-pressure gas distribution Articles
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Hiden ESPion plasma probe measurements on a hollow-cathode based large-volume plasma source
Vacuum-based surface engineering and coating processes require plasma sources generating a high charge carrier density in order to achieve enhanced sputter and activation effects. Fraunhofer FEP is providing a hollow-cathode based plasma source, which produces homogeneous large-volume plasmas of up to 1 m3 with maximum plasma densities of more than 1012 cm-3 at chamber pressures between 0.1 and ...
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Maximizing bioreactor performance - Case Study
Paul Sauer, Associate Scientist of Protein Design Lab's Cell Culture Development Group, had two compelling reasons for specifying mass flow controllers for his work: The first was the need to acquire an array of data that would allow them to more effectively control fermentation processes; The second was the need to minimize the formation of foam in the bioreactor's headspace. To minimize foam, ...
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Bringing precision to steel production - Case Study
Aluminum and steel manufacturers use mass flow controllers to inject purification, stirring and shielding gases into their melting, casting and annealing processes. Precise, automated gas flow control reduces toxic emissions and material costs. Final purification of aluminum is accomplished by bubbling a mixture of argon and chlorine gases through the molten metal. This process separates ...
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Improve gas blending accuracy and save money – Case Study
For DataChem Laboratories, precision mass flow is crucial. DataChem, originally established in 1973 as part of the University of Utah's Research Institute, has grown into a world respected analytical testing laboratory. They have the important job of testing and identifying harmful industrial and environmental toxins—from lead paint found on our children's toys to methamphetamine dust ...
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Delivering automation to test stations - Case Study
CeraMem Corporation is a developer of metal oxide gas concentration sensors in Waltham, MA. Their test engineers required mass flow controllers that were easy to intregrate and calibrate. They also demanded fast response and high accuracy in order to reduce test cycle length and improve the quality of the data. Test station requirements demanded that controllers were capable of adjusting ...
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Types and properties of powder prepared by vacuum atomization
Thermal spray alloy powder Thermal spraying is a surface strengthening technology. It uses a heat source in the form of electric arc, plasma arc, gas-oxygen, etc. to heat metal or non-metallic materials to a molten or semi-melted state, and atomize them into fine droplets or high-temperature particles under the action of high-speed airflow. The high-flying speed is sprayed onto the surface of the ...
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Water Environment Research Article
Iron Sponge Reduces Toxic Emissions To control emissions from a cogeneration facility that will use digester gas for fuel, the Sacramento Regional Wastewater Treatment Plant in Elk Grove, Calif., is incorporating iron sponge technology to reduce hydrogen sulfide (H2S) prior to combuston. Reducing digester gas H2S concentrations at this stage will result in lower sulfur oxide emissions in the ...
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