摘要:
A flat casing is formed by joining a hollow cylindrical cover to a hollow cylindrical frame, and a d.c. magnetic field generating magnet in the form of a disk is fixed to the inner surface of the cover. Disposed inside the casing is a disklike diaphragm spaced apart from the lower surface of the magnet by a gap and having its outer peripheral portion fixedly held between the cover and the frame. A hollow cylindrical drive coil coaxial with the magnet is fixed to the lower surface of the diaphragm and has an axis perpendicular to the diaphragm. Stated specifically, the drive coil has an outside diameter which is at least 80% to not greater than 116% of the outside diameter of the magnet and an inside diameter which is at least 66% to not greater than 94% of the magnet outside diameter. The transducer is diminished in power consumption, has a reduced thickness and is yet highly efficient.
摘要:
An automatic white balance system according to an embodiment of the invention comprises a color separation and synchronization unit which has a line memory for generating a white-balance-adjusted YUV signal, a color judgment unit which judges whether or not a white balance adjustment is needed, a white balance adjustment gain computation unit which calculates a white balance adjustment gain on the basis of the result of the judgment at the color judgment unit and the white-balance-adjusted YUV signal, a reciprocal computation unit which outputs the reciprocal transformation value of the white balance adjustment gain, and a second multiplier which multiplies the white-balance-adjusted YUV signal by the reciprocal transformation value.
摘要:
Data is written to a nonvolatile memory device having a memory region of four bits or larger in one memory cell sandwiched by a source and a drain with an improved accuracy. The nonvolatile memory device includes four control gates provided between a first and a second impurity-diffused regions that are provided separately from the semiconductor substrate, and a memory cell including memory regions that are counterpart of the control gates. A method for controlling the nonvolatile memory device includes classifying the four control gates into two groups of right and left sides, and then, applying a lower voltage to an impurity-diffused region that is further from a target memory region for injecting an electron and applying a higher voltage to an impurity-diffused region that is closer the target memory region, and applying a higher voltage, the higher voltage being higher than voltages applied to other control gates.
摘要:
Nonvolatile memory elements are disclosed which can have increased capacity, reduced operating voltage and/or faster operating speeds. According to one embodiment, a nonvolatile memory element can include a first diffusion layer (2) and a second diffusion layer (3) formed in a main surface of a substrate (1). A laminate film can be formed near a first diffusion layer (2) and/or a second diffusion layers (3) that includes a first insulating film (4a or 4), a second insulating film (5a or 5), and a third insulating film (6a or 6). A gate insulating film (7) can be formed a channel region and gate electrode (8) can be formed to cover gate insulating film (7) and the laminate film(s) that has a T-shape. A gate electrode (8) can have end portions that sandwich a first insulating film (4a or 4), a second insulating film (5a or 5), and a third insulating film (6a or 6) with a first diffusion layer (2) and/or second diffusion layer (3).
摘要:
The present invention relates to an insulated wire comprising a conductor and at least two insulating layers provided on the outer periphery of the conductor. The inner insulating layer is provided directly or via another insulation on the outer periphery of the conductor and comprises a polyolefin compound containing 20 to 80 parts by weight of at least one substance selected from ethylene .alpha.-olefin copolymer, ethylene .alpha.-olefin polyene copolymer (.alpha.-olefin having the carbon numbers of C.sub.3 -C.sub.10, polyene being non-conjugated diene). The outer insulating layer is made primarily of a heat resistant resin which contains no halogen and which is a single substance or a blend of two or more substances selected from polyamide, polyphenylene sulfide, polybutylene terephthalate, polyethylene terephthalate, polyether ketone, polyether ether ketone, polyphenylene oxide, polycarbonate, polysulfone, polyether sulfon, polyether imide, polyarylate, polyamide, or a polymer alloy containing such resin as the main component.
摘要:
In accordance with this invention, a waste gas containing toxic NF.sub.3 gas is contacted with a honeycomb structure of a carbonaceous material to thereby convert NF.sub.3 into nontoxic CF.sub.4 and N.sub.2 gases with high efficiency.
摘要:
Upon forming a plating coat on steel works, the works are held in a fluorine- or fluoride-containing gas atmosphere in a heated condition to thereby remove oxidized scales such as SiOx, MnOx and the like on the surface layer of the work and to form a fluoride layer to prevent forming new oxidized scale. The fluoride layer is easily eliminated by an action of added flux to a plating bath or by heating the fluorinated steel works in an atmosphere containing hydrogen prior to dipping in the plating bath to activate the steel surface. The activated steel surface is improved in compatibility with the plating bath and the like to realize a good quality plating coat formation.
摘要:
Stainless steel foil 31 is wound spirally on the circumference of a pipe body 30 from one end to another end of the pipe body 30 to overlap itself and the periphery of the pipe body 30 is covered with the overlapped layer to give a heat insulation pipe body. The stainless steel foil 31 is wound on the circumference of the pipe body 30 from one end thereof, while ceramic particles 32 are flame sprayed to the wound part of the stainless steel foil 31 to form a ceramic particle dotted layer 33. Then on the periphery of the stainless steel foil 31 with the ceramic particle dotted layer 33 formed, a part of the stainless steel foil subsequent to one end of said stainless steel foil is wound shiftedly toward an axis direction and at the same time the newly wound stainless steel foil part is flame sprayed with ceramic particles 32 to form a ceramic particle dotted layer 33 and these steps are repeated.
摘要:
In this invention, a method of manufacturing a colored metallic sheet comprises steps of holding a surface to be painted of metallic plates 10 in a fluorine- or fluoride-containing atmosphere in a heated condition to form a fluorided layer on the surface to be painted, removing the formed fluorided layer on the surface just before painting the surface to expose a metallic base, and painting the exposed metallic base surface.
摘要:
In accordance with this invention, a waste gas containing toxic NF.sub.3 gas is contacted with a honeycomb structure of a carbonaceous material to thereby convert NF.sub.3 into nontoxic CF.sub.4 and H.sub.2 gases with high efficiency.