摘要:
Rare-earth metal salts of organic carboxylic acids of this invention constitute themselves phosphors which exhibit unusually high luminescence efficiency, excel in chemical and physical stability and weatherability, show high affinity for other chemical substances and promise extensive usefulness in the field of high-performance luminescent products.
摘要:
Rare-earth metal salts of organic carboxylic acids of this invention constitute themselves phosphors which exhibit unusually high luminescence efficiency, excel in chemical and physical stability and weatherability, show high affinity for other chemical substances and promise extensive usefulness in the field of high-performance luminescent products.
摘要:
A compound selected from some classes of coloring substances having good resistance to light and oxidation is found to have a high photosensitive activity when it is supported in an actively dispersed form on a carrier. The sensitizer obtained is useful for heterogeneous system photosensitive oxidation for various purposes, for example, treatment of harmful organisms or impurities contained in the air or water. The sensitizer has also good resistance to light and oxidation and can be used repeatedly for a long time.
摘要:
A water repellent inorganic foam is prepared by foaming and setting a foamable composition comprising an aqueous metal phosphate in the presence of a specific compound having hydrophobic groups and functional groups reactive with said metal phosphate.
摘要:
A highly expanded inorganic foam containing discrete cells with an average diameter of 3 mm or less, being non-flammable with excellent thermal insulating property, heat resistant property as well as water resistance is found to be prepared by foaming and setting simultaneously at normal temperature by adding a suitable amount of a polyvalent metal carbonate to a stable aqueous solution dispersion of a metal phosphate with a specific atomic ratio of metal to phosphorus and a specific ratio of metal valences relative to phosphate ion valences.
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.