Results 211 to 220 of about 129,975 (260)
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Applied Optics, 1972
Viene dimostrato per la prima volta il funzionamento di una lente geodetica ottica, costituita da un film di resina epossidica depositato su una sfera di vetro ottico.
GC RIGHINI +3 more
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Viene dimostrato per la prima volta il funzionamento di una lente geodetica ottica, costituita da un film di resina epossidica depositato su una sfera di vetro ottico.
GC RIGHINI +3 more
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Electronics and Power, 1969
In recent years, new knowledge of the solid state and the scientific study of surfaces and interfaces have resulted in a rapid development of the thin-film field-effect transistor. The t.f.t. can be formed on inexpensive substrates, such as glass and paper, and its future could lie in its use as a really cheap device of moderate performance, made with ...
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In recent years, new knowledge of the solid state and the scientific study of surfaces and interfaces have resulted in a rapid development of the thin-film field-effect transistor. The t.f.t. can be formed on inexpensive substrates, such as glass and paper, and its future could lie in its use as a really cheap device of moderate performance, made with ...
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Journal of Chromatography A, 1964
Abstract Freeze-drying as a means of overcoming the zone-migration that occurs during drying of thin-film electropherograms at elevated temperatures is described and recommended.
W.J. Criddle, G.J. Moody, J.D.R. Thomas
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Abstract Freeze-drying as a means of overcoming the zone-migration that occurs during drying of thin-film electropherograms at elevated temperatures is described and recommended.
W.J. Criddle, G.J. Moody, J.D.R. Thomas
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Metallosupramolecular Thin Polyelectrolyte Films
Angewandte Chemie International Edition, 1998Molecular recognition and electrostatic interaction of oppositely charged polyelectrolytes are combined in the fabrication of ultrathin metallosupramolecular multilayers [shown schematically in the picture, PEI=polyethyleneimine, PSS=poly(styrene sulfonate)].
Schütte, M. +4 more
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1977
Publisher Summary This chapter discusses the thin film dialysis with respect to theory, experimental methods, applications in preparative and analytical work, and the future of the technique. If a solution is dialyzed, its components are subjected to separation processes that are based upon differential diffusion rates through a semipermeable ...
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Publisher Summary This chapter discusses the thin film dialysis with respect to theory, experimental methods, applications in preparative and analytical work, and the future of the technique. If a solution is dialyzed, its components are subjected to separation processes that are based upon differential diffusion rates through a semipermeable ...
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IRE Transactions on Electronic Computers, 1959
A small random-access memory using deposited magnetic thin films as storage elements, and with a cycle time of one microsecond, is described. Information is read from or written into the memory by linear or word selection techniques. The addressing, driving and sensing circuits are transistorized.
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A small random-access memory using deposited magnetic thin films as storage elements, and with a cycle time of one microsecond, is described. Information is read from or written into the memory by linear or word selection techniques. The addressing, driving and sensing circuits are transistorized.
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Ferroelectric Thin Films and Thin Film Devices
1993Research and development efforts on ferroelectric memories have been underway since about 1955. The early work, largely at IBM, RCA, Bell Telephone Laboratories and other US industrial laboratories was stymied by two problems: Firstly, the materials were too thick to permit operation at 5 V, the standard “TTL” or “CMOS” operating voltages in the ...
J. F. Scott +2 more
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Physics Today, 1949
There are very few people who spend much time on the optical properties of thin films and a large percentage of them attended an international conference on the optical properties of thin films held at Marseille from April 19 to 23.
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There are very few people who spend much time on the optical properties of thin films and a large percentage of them attended an international conference on the optical properties of thin films held at Marseille from April 19 to 23.
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2003
Abstract The development of suitable micro actuators is a key challenge in the area of micro- machines or microelectromechanical systems (MEMS). A successful micro actuator must develop a large work output from a smaller and smaller volume, and therefore work output per unit volume is a key figure of merit for any actuator material.
Raja Nassar, Weizhong Dai
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Abstract The development of suitable micro actuators is a key challenge in the area of micro- machines or microelectromechanical systems (MEMS). A successful micro actuator must develop a large work output from a smaller and smaller volume, and therefore work output per unit volume is a key figure of merit for any actuator material.
Raja Nassar, Weizhong Dai
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1992
Abstract Thin-film structures provide an important technology for making optical components with a desired surface reflectivity, either highly reflecting for such applications as laser mirrors, or minimally reflecting for the surfaces of a lens. The physics of operation and design is, of course, that of interference.
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Abstract Thin-film structures provide an important technology for making optical components with a desired surface reflectivity, either highly reflecting for such applications as laser mirrors, or minimally reflecting for the surfaces of a lens. The physics of operation and design is, of course, that of interference.
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