Abstract: A cylinder assembly of a hermetic compressor has a valve plate disposed on an outer side of a cylinder block to cover an open side of a cylinder, the valve plate defines a refrigerant discharge hole therethrough which is adapted to discharge a compressed refrigerant from the cylinder. A cylinder head disposed to cover the outer side of the valve plate defines a refrigerant discharge chamber in cooperation with the valve plate. A discharge valve is disposed between the valve plate and the cylinder head in a cantilever fashion with a central portion thereof covering the refrigerant discharge hole. A restricting mechanism comprising a first stopper member protruding from an inner wall of the cylinder head a distance such that a terminal edge of the first stopper member is at a predetermined distance from a free end of the discharge valve for restricting movement of the discharge valve.

Abstract: Disclosed are the plant sterol-containing food, and methods for preparing the same. The particle size of the plant sterol contained in the food is nanometer-scale, and the plant sterol-containing food of the present invention inhibits the absorption of cholesterol.

Abstract: Disclosed are a mixing powder of plant sterol and emulsifier, and method for preparing the same. More particularly, the present invention provides a mixing powder of plant sterol and emulsifier for application to almost all food, irrespective of food base, to obtain an improvement in the dispersion stability of the plant sterol micelles inhibiting the absorption of cholesterol.

Abstract: The present invention relates to a method for preparation of androst-4-ene-3,17-dione (AD) and androsta-1,4-diene-3,17-dione (ADD). More particularly, the present invention relates to a method for preparing AD/ADD, comprising the steps of: (a) heating sterols and emulsifier respectively, to dissolve completely and mixing to prepare a mixture; (b) placing the mixture in a water bath at 70˜90° C. and stirring to obtain emulsified sterols; and (c) adding the emulsified sterols to culture media of microorganism as a component. And the present invention relates to a method for preparing AD/ADD, comprising the addition of cyclodextrin-sterol complexes extracted from milk to culture media of microorganism as a component. The emulsified sterols and cyclodextrin-sterol complexes adopted in the present invention can be easily prepared and be effectively used for obtaining AD/ADD at a high yield.

Abstract: Disclosed is a microorganism having an excellent ability to convert sterol into and rost-4-ene-3,17-dione (AD) and androsta-1,4-diene-3,17-dione (ADD), a method for preparation of the microorganism and use thereof, and more particularly, a mutant strain of Mycobacterium fortuitum ATCC 29472, Mycobacterium fortuitum EUG-119, a method for preparation of the mutant and use thereof in preparing AD and ADD. The mutant of the present invention has an excellent ability to convent sterol into AD and ADD which are steroid hormone precursors, compared with the known microorganisms and accordingly, is very useful for mass production of steroid hormones.

Abstract: This invention relates to an anticancer agent comprising mycolactone, which induces apoptotic death of cancer cells and also relates to inhibitors of Rb protein expression, including an antisense Rb oligonucleotide, which sensitize cancer cells to mycolactone. This invention relates further to an anticancer agent comprising both mycolactone and the inhibitors of Rb protein expression. Mycolactone induces cell death in cancers of breast, bladder, skin, stomach, liver, colon, and oral cavity, lymphoma, and leukemia via apoptosis pathway.

Abstract: Disclosed are a method for dispersing plant sterol for beverage and a plant sterol-dispersed beverage, of which particle size is nanometer-scale in dispersed beverage. The dispersion of plant sterols starts with the admixing of plant sterol to at least one emulsifier selected from the group consisting of sucrose fatty acid ester, sorbitan fatty acid ester and polyglycerine fatty acid ester, followed by melting the admixture by heating at 60 to 200° C. Afterwards, the molten substance is mixed with an aqueous beverage alone or an emulsifier-containing aqueous beverage in state of its own molten type or power type. This resulting mixture is stirred at a high speed to give a dispersion of plant sterols in an aqueous beverage. The beverage is superior in bioavailability, having good mouth feel, transparent aspect and no influence on the characteristic taste, flavor and color of the beverages.

Abstract: A cylinder assembly of a hermetic compressor has a valve plate disposed on an outer side of a cylinder block to cover an open side of a cylinder, the valve plate defines a refrigerant discharge hole therethrough which is adapted to discharge a compressed refrigerant from the cylinder. A cylinder head disposed to cover the outer side of the valve plate defines a refrigerant discharge chamber in cooperation with the valve plate. A discharge valve is disposed between the valve plate and the cylinder head in a cantilever fashion with a central portion thereof covering the refrigerant discharge hole. A restricting mechanism comprising a first stopper member protruding from an inner wall of the cylinder head a distance such that a terminal edge of the first stopper member is at a predetermined distance from a free end of the discharge valve for restricting movement of the discharge valve.

Abstract: This invention relates to a mass preparation method of RmlC protein and the purified RmlC protein by the said method. RmlC is a gene product of rmlC, which is one of the biosynthesis genes of rhamnose that is an important element that consists cell wall of Mycobacterium tuberculosis. To be more specific, this invention improves the following disadvantage of recombinant RmlC protein of Mycobacterium tuberculosis previously reported that contains unnecessary 15 amino acids into the natural RmlC protein. This invention relates to a recombinant plasmid, a recombinant E. coli that is transformed by the plasmid, preparation method of Mycobacterium tuberculosis RmlC recombinant protein using the recombinant E. coli, purification method of recombinant RmlC protein, and the RmlC protein purified by the said method.

Abstract: The present invention provides an apparatus for forming an aluminium chassis having heat insulating foam filled in a hollow portion, and more particularly to an improvement wherein the heat insulating foam is filled in the hollow portion of the aluminium chassis for windows and doors principally in order to improve an efficiency of heat insulation and sound absorption.

Abstract: A joint type disc cage of a roller bearing in which a joint is provided at a sheared part of the disc cage so as to fit it into a single-pieced outer or inner race of the roller bearing. Owing to the joint structure of the sheared part of the disc cage, the installation of the disc cage can be easily carried out, and the installed disc cage is maintained in a circular form, so that the function of the disc cage becomes superior, and deformations, abrasions and degradations of the disc cage can be prevented, as well as ensuring the durability and safety of the roller bearing. The disc cage 1 is sheared at one place to form a sheared part 2 which forms two joint end portions 2a and 2b, so as to install the disc cage 1 into an annular installing groove 5 of the outer or inner race 4 and 4a of the roller bearing. The joint end portions 2a and 2b of the sheared part 2 are firmly engagedly coupled together, and therefore, actually the disc cage 1 performs like a non-sheared disc cage.

Abstract: Disclosed are a method for dispersing plant sterol in aqueous substrates and a plant sterol-dispersed beverage. The dispersion of plant sterols starts with the admixing of plant sterol to an emulsifier, followed by melting the admixture by heating at 60 to 200° C. Afterwards, the molten substance is mixed with an aqueous beverage alone or an emulsifier-containing aqueous beverage. This resulting mixture is stirred at a high speed to give a dispersion of plant sterols in an aqueous beverage. Optionally, the dispersion may be homogenized. In the beverage thus obtained, there are contained nano-sized micelles which are superior in bioavailability, having no influence on the characteristic taste and flavor of the beverages. Also, the improvement in the dispersion stability of the plant sterol micelles has the effect of prolonging the life span of the beverage, guaranteeing the stability of the products for a long period of time.

Abstract: A method for detecting Mycobacterium tuberculosis by the polymerase chain reaction (PCR) amplification of the REP13E12 repeated sequence, and more particularly, to a method for detecting Mycobacterium tuberculosis in clinical specimen by the PCR amplification of all or some of the REP1 3E1 2 repeated sequence is provided. Since the Mycobacterium tuberculosis detecting method by the PCR amplification for amplifying the REP13E12, which is the repeated sequence cloned from the microbial cells of Mycobacterium tuberculosis, which are separated from Korea, shows excellent sensitivity and specificity, it is possible to effectively detect Mycobacterium tuberculosis in specimen using the method.

Abstract: Infrared sensor that can make a temperature compensation by itself, and method for compensating a temperature thereof, are disclosed. The infrared sensor preferably includes a substrate, a diaphragm formed on the substrate, and a first thermopile sensor formed on a region of the diaphragm for sensing an infrared radiation emitted from a measured object and infrared radiations emitted from regions other than the measured object. A second thermopile sensor is formed on a region of the diaphragm and connected to the first thermopile sensor for sensing the infrared radiations emitted from the regions other than the measured object. A housing protects a front face of the substrate including the first, and second thermopile sensors includes an infrared filter in the housing over the first and second thermopile sensors for transmission of infrared radiations, and a reflector reflects the infrared radiation emitted from the measured object toward the first thermopile sensor.

Abstract: A cylindrical roller bearing is disclosed. Roller insertion slots are closed without forming a screw hole, but the closing of the insertion slot is firm, and the aesthetic appearance of the bearing is very perfect. Rollers 4 are inserted into operating channels 2c and 3c of inner and outer races 2 and 3 of the roller bearing 1. Insertion slots 2b and 3b are formed respectively on the collars 2a and 3a of the inner and outer races 2 and 3 to form a roller insertion hole 5 for inserting the rollers 4. The roller insertion holes 5 may be circular, rectangular, twin-arcuate or the like. After filling the rollers 4 into the operating channels 2c and 3c, a closing piece 6 is press-fitted into the insertion hole 5. The closing piece 6 may consist of two pieces 6a and 6b, and has a size larger than that of the insertion hole 5 by about 0.01 mm. Thus the closing pieces are firmly fitted into the insertion slots to such a degree that the closing pieces will never depart under any operating conditions.

Abstract: Apparatus for automatic cooking of a cooking object in a cooking apparatus, such as a microwave oven, in which a surface temperature of the cooking object is accurately detected for automatic cooking of the cooking object, is disclosed, including infrared radiation extracting part having an angle of view of a predetermined form toward one side of the turntable for extracting an infrared radiation radiated from a surface of a cooking object; and temperature detecting part having a window with an elliptical angle of view for reception of the infrared radiation for detection of a temperature of the surface of the cooking object.

Abstract: In an automatic cooking controlling apparatus and method for a cooker, the apparatus includes a turntable installed within a chamber of the cooker for placing a to-be-cooked object thereon, an infrared filter for filtering only the infrared wavelength bands reflected from the to-be-cooked object, an infrared adjusting lens means for adjusting the wavelength filtered by the infrared filter, a magnetron for heating the to-be-cooked object, a driving motor for rotating the turntable, a thermopile sensor for detecting an infrared signal generated from the to-be-cooked object, a signal processor for processing the signal detected from the infrared sensor, and a controller for controlling the oscillation mode of the magnetron.

Abstract: Method for manufacturing polycrystalline silicon having high resistance, having a first step for depositing a polycrystalline silicon layer for a resistor area over a silicon semiconductor substrate; a second step for growing a first thermal oxide layer having a first specified depth over the polycrystalline silicon layer, ion-implanting with the nitrogen thereon, and growing a second thermal oxide layer having a second specified depth on the ion-implanted layer; a third step for forming a resistor pattern of the polycrystalline silicon with a photo etching method; and a fourth step for ion-implanting impurities in order to decrease the resistance of the polycrystalline silicon as contact regions to be used in resistance contacts with a fixed semiconductor region on the substrate.

Abstract: An improved writing implement comprising a barrel having multiple spiral grooves in the inner wall thereof so that a guide element of a carrier within the barrel having a single spiral thread thereon is selectively engaged with one of the multiple spiral grooves, a cap rotatably attachable to one end of the barrel including an insert portion having a protruding ring member projecting from the outer surface of the insert portion engageable with a corresponding ring groove in one end of the barrel, an extension on the cap protruding into the barrel and cooperatively engageable with the carrier so that rotation of the cap rotates and drives the carrier axially within the barrel for moving the lead inwardly or outwardly, and a tip having an insert end with multiple spiral projecting threads thereon cooperatively engageable with the sprial grooves in the barrel.

Abstract: A writing implement has a carrier for guiding a pencil lead forward and/or backward at both ends of a pencil barrel wherein the movement of the carrier is produced by rotating a cap to which a cap holder and a supporting member are integrally connected and the supporting member is provided with stop jaws for preventing an excess back movement of the carrier at the inner end of the supporting member.