Abstract:
본 발명은 성장단계의 잉곳을 정밀하게 제어하여 우수한 품질의 단결정 사파이어를 기계적으로 반복하여 얻을 수 있도록 한 것으로서, 통상적으로 구비되는 단결정 사파이어 잉곳 성장장치에 있어서; 상기 냉각수단은, 이중챔버로 구성하여 콘트롤러에 의하여 내부를 흐르는 냉각수 유량을 제어하여 도가니의 상,하부 온도편차를 줄일 수 있도록 하고, 상기 무게측정수단은 미세한 무게측정이 가능하도록 다수개의 로드셀을 외팔보와 잉곳로드 및 도가니받침대에 설치하여 구성하는 것이 특징이다.
Abstract:
본 발명은 인간 sTNFR1(soluble tumor necrosis factor receptor)의 세포 외역 부위와 면역글로불린의 Fc 영역이 융합된 sTNFR1-Fc를 코딩하는 유전자가 삽입된, sTNFR1-Fc를 분비하는 형질전환 돼지, 이의 제조방법, 상기 형질전환 돼지로부터 분리된 장기, sTNFR1-Fc 유전자가 삽입된 체세포 공여 세포주, sTNFR1-Fc를 포함하는 혈액 제조방법, 및 형질전환 돼지의 혈액으로부터 인간 sTNFR1-Fc의 제조방법에 관한 것이다. 형질전환 돼지는 혈액 내에서 TNF-α의 활성을 억제시키는 물질을 분비함으로써, 면역 반응 및 염증 반응을 억제시킬 수 있어, 이종간 이식에 유용하게 사용될 수 있다. 또한 O형 돼지로서 혈액 타입에 상관없이 염증반응 억제를 위해 이식될 수 있다.
Abstract:
본 발명은 인간 HO-1 유전자 및 TNFR1-Fc 융합 유전자를 동시에 발현하는 면역거부 반응이 억제된 형질전환 돼지의 제조 방법, 상기 방법에 의해 제조된 면역거부 반응이 억제된 장기 이식용 형질전환 돼지, 상기 형질전환 돼지를 제조하기 위한 체세포 공여 세포주 및 상기 형질전환 돼지로부터 면역거부 반응이 억제된 장기를 제조하는 방법에 관한 것이다.
Abstract:
PURPOSE: Provided is a process for producing small ceramic bead, which is excellent in degree of sphericity, is applicable for in various materials and produce quickly 0.5-5.0mm size of the bead in large quantities by using sphericity zone composed of a hydrophobic sphericity agent and a hydrophilic curing agent. CONSTITUTION: The small ceramic bead is obtained by the steps of: i) dispersing ceramic powder and a binder into water to make ceramic slurry having 10-1.000 poise of viscosity and 30-90wt% of ceramic powder content; ii) dropping the ceramic slurry to a vessel having a two-phase solvent being a hydrophobic sphericity solvent of the upper layer and a hydrophilic solidification solvent of the lower layer, to form a spherical ceramic bead by being connected to the sphericity solvent and the solidification solvent by turns; iii) recovering the ceramic bead from the vessel; and then iv) drying and heating it.
Abstract:
PURPOSE: A preparation method of interior and/or exterior finishes for construction is provided which can prepare interior and/or exterior finishes for construction which is harmless to people at low cost, gives rather soft feeling than hard feeling compared with existing interior and/or exterior finishes for construction and has various colors of pastel tone. CONSTITUTION: The preparation method of interior and/or exterior finishes for construction comprises grinding a mixture containing 50 - 80 wt% of raw material selected from the group consisting of siliceous stone, clay, yellow soil, silica and their mixtures, 20 - 50 wt% of lime, and optionally inorganic pigment and filler, moulding said grinded mixture, and then carrying out hydrothermal synthesis of said grinded mixture to produce the desired interior and/or exterior finishes for construction.
Abstract:
PURPOSE: Provided is a preparation method of fine ceramic powder used as an additive for high functional synthetic fibers, which enables to produce synthetic fibers with improved surface roughness, strength and elongation compared with conventional ceramic fibers. CONSTITUTION: The preparation method of fine ceramic powder comprises the steps of: preparing a slurry(10-1000centipoise viscosity) including 30-90wt.% of natural minerals(clay, mica, etc.), and ceramic powder(activated alumina, zeolite, diatom, etc.) by dispersing unsintered minerals and ceramic powder into alcohol by dispersant based on acryl; grinding the ceramic slurry; centrifuging to get a slurry containing powder less than 1.0micrometer(12500mesh); spray-drying and powdering. The functional synthetic fibers are produced by polymerizing the ceramic slurry containing powder less than 1.0micrometer and polymer for synthetic resin chips and melt-spinning or mixing master batch chips, composed of the obtained ceramic powder and synthetic resin, with synthetic resin and melt-spinning.
Abstract:
PURPOSE: A medical bed is provided to allow the patient to change his/her posture at the bed by raising and lowering several portions of the bed mattress in cycle through the use of a driving member. CONSTITUTION: A medical bed comprises a bed mattress including an upper bed mattress(101) and a lower bed mattress(102); an operating plate unit disposed beneath the bed mattress, and constituted by a plurality of operating plates(121,122,123,124); a support unit(130) supporting the operating plates; a driving unit interposed between the support unit and the operating plate unit, and which drives the operating plate unit; and a control unit for controlling operation of the driving unit. The operating plates are connected to each other through a hinge(125). The operating plate unit has a width same as the width of the upper mattress and lower mattress. The support unit includes first to fourth tube receiving portions(140,141,142,143) formed to correspond to operating plates. Each of operating plates has a plurality of supporting rods(131) formed along the edge of each operating plate so as to support operating plates.