摘要:
The invention provides a hydrogel-type sustained-release preparation comprising (1) at least one drug, (2) an additive which insures a penetration of water into the core of the preparation and (3) a hydrogel-forming polymer, wherein said preparation is capable of undergoing substantially complete gelation during its stay in the upper digestive tract such as stomach and small intestine and is capable of releasing the drug in the lower digestive tract including colon. By the preparation of the invention, the drug is efficiently released and absorbed even in the colon so that a steady and sustained release effect can be achieved.
摘要:
Disclosed are a method and an apparatus for detecting a defect in a dielectric film. The dielectric film is electrified in an electrolyte solution containing a metal in such a manner the dielectric film is charged negative, thereby the metal is deposited on the dielectric film at a position corresponding to the defect. The detecting method has a first deposition step for forming a first metal deposit on the dielectric film in an annular form surrounding the position corresponding to the defect; and a second deposition step for forming a second metal deposit located on the position corresponding to the defect, on the dielectric film. The detecting apparatus has a vessel for accommodating the electrolyte solution; a first electrode for electrifying the dielectric film and a second electrode; and an electric power source for controlably applying a voltage to electrifying between the first electrode and the second electrode in which a value and a direction of the applied voltage is variable.
摘要:
This invention relates to synthetic chalcoalumite-type compounds represented by formula (1) below:M.sup.2+.sub.a-x/2 Li.sub.x.sup.1+ Al.sub.4.sup.3+ (OH).sub.b (A.sup.n-).sub.c.mH.sub.2 O (1)(whereinM.sup.2+ represents at least one of the following divalent metal ions: Zn.sup.2+, Cu.sup.2+, Ni.sup.2+ and Mg.sup.2+,a is 0.6
摘要:
A synthetic chalcoalumite compound represented by the formula (1)(Zn.sub.a-x.sup.2+ M.sub.x.sup.2+)Al.sub.4.sup.3+ (OH).sub.b (A.sup.n-).sub.c.mH.sub.2 O (1)whereinM.sup.2+ represents at least one of Cu, Ni, Co and Mg;a represents 0.3
摘要:
A bodily state detection apparatus comprising a CCD camera, an infrared LED device, a pickup image memory, a pupil extraction circuit and a bodily state judgment circuit. The CCD camera inputs images of a predetermined area including the subject person's face. The infrared LED device illuminates the subject person in such a way that the optical axis of the camera and the direction of the illumination coincide with each other. The pickup image memory stores temporarily the output data of the CCD camera. The pupil extraction circuit extracts the subject person's pupil position from the pickup images. The bodily state judgment circuit judges the subject person's bodily state by use of the result of pupil extraction performed by the pupil extraction circuit.
摘要:
A tubular single-layer winding coil is installed on the outer periphery of a thin wall portion of a cylindrical container case and a columnar electrode is provided at the center of the inside of the cylindrical container case. A fuel channel is formed between the coil and the electrode so that the permittivity of fuel flowing through the fuel channel is detected from the electrostatic capacity therebetween. Further, variation of the electrostatic capacity due to the temperature characteristics of the fuel is compensated by the temperature characteristics of the permittivity of the thin wall portion of the sensor unit. Furthermore, variation of the electrostatic capacity due to the temperature characteristics of the fuel is compensated by the temperature compensation capacitor which is connected with the single layer winding coil in parallel.
摘要:
A flame retardant aid which serves to provide synthetic resins with sufficient flame retardancy when used together with a decreased amount of aluminum or magnesium hydroxide, and serves to give resin compositions which have color stability against heat and can be almost freely colored. The flame retardant aid is at least one compound selected from the group consisting of:a composite metal compound of the formula (A),Mg.sub.1-(x+y) Ni.sub.x Co.sub.y (OH).sub.2 (A)ora composite metal compound of the formula (B),Mg.sub.1-(x+y) Ni.sub.x Co.sub.y O (B)wherein x and y are defined in the specification,nickel halides,ammonium-containing salts of nickel,inorganic acid salts of nickel, andfatty acid salts of nickel.
摘要:
A sintered silicon nitride excellent in high temperature performance is produced by the following method: First, silicon nitride powder and oxide of at least one element selected from elements in the group IIIb of a periodic table are mixed with each other to obtain a mixture. The silicon nitride powder contains silicon oxide in an amount ranging from 0.1% by weight of the silicon nitride powder to a value not more than a content of the silicon oxide. Second, the mixture is compacted to form a compact. Finally, the compact is fired in atmosphere of nitrogen at a pressure ranging from 5 to 200 atmosphere (atm) and a temperature ranging from 1800.degree. to 2000.degree. C. to obtain a sintered silicon nitrite having a bulk density not less than 95% of a theoretical density of the sintered silicon nitride.
摘要:
A space frame comprises an upper frame body and a lower frame body both constructed with square steel tubular members; and diagonal members joining the upper frame body to the lower frame body. Each pair of two perpendicular sides of each of the square steel tubular members forming the lower frame body are arranged to make an angle of about 45 degrees to the plane of the lower frame body. The diagonal members are arranged to cross at an angle of about 45 degrees to bar members both of the upper and lower frame bodies. The space frame provides increased buckling strength because the bar members and the diagonal members may be entirely joined by welding.