1
Seo Kum Seok, Kim Hyeong Kuk Et Al: Lower stationary structure with preventive finagainst alien substance in nuclear fuel assembly. Korea Atomic Energy Res Inst, June 15, 1994: KR1019910001976

The apparatus prevents the alien substances of fatal size from flowing into the nuclear fuel assembly. The grid type fins (8,8) are formed on cooling water holes (7,7) bored at the lower structure (2) of the fuel assembly so that the large size particles are filtered at the fins. But smaller particl ...


2
Su Suck Yong: Method for driving z-axis servo motor of electricdischarge machine by classifying edm wave shape. Korea Atomic Energy Res Inst, March 13, 1995: KR1019920005580

The method classifies electric voltage or current wave shapes generated from EDM (electric discharge machinning) process, and drives digitally the Z-axis servo motor for feeding electrodes for EDM. The method comprises the steps of : generating monitoring pulses at the start of finish point of a cir ...


3
Su Suck Yong: Arc prevention method by classifying edm wave shape. Korea Atomic Energy Res Inst, March 13, 1995: KR1019920005521

The method classifies electric voltage or current wave shapes generated from EDM (electric discharge machinning) process, and prevents the electric arc by use of the wave shape classification result. The method comprises a step of obtaining signals of more than set values corresponding to electric a ...


4
Lim Byeong Hak, Sin Jin Myeong, Chang In Sun, Sin Jae In: Method for treating waste water including heavy metal ions using acorn extract. Korea Atomic Energy Res Inst, February 14, 1996: KR1019930015484

Heavy metal ions, other than U ions, are removed from waste water using an acorn extract. The process comprises (i) drying acorns in sunlight at ambient temp.; (ii) extracting "acornic acid" with distilled water; (iii) filtering the extract until colourless; (iv) adjusting the pH of the wa ...


5
Kim Sung Soo, Kim Dae Whan, Hong Jun Wha, Kang Yong Hwan: Seamless zirconium alloy pressure tube and its manufacturing method. Korea Atomic Energy Res Inst, September 30, 1995: KR1019930018523

The method comprises: extruding and/or drawing a seamless pressure tube of a specified Zr alloy at high temperature; cross-rolling the extruded/drawn Zr alloy tube of smaller diameter than that finally required; and expanding the tube at a temperature below 600 deg.C without causing significant phas ...


6
Lim Jae Kwan, Park Jung Hwa Et Al: Pneumatic liquid transfer system. Korea Atomic Energy Res Inst, June 25, 1994: KR1019920003597

The pneumatic liquid transfer system transfers liquid using a pneumatic circuit composed of an air pressure regulator (6), a needle valve (7), an air charging room (8), a pressure controller (10), a solenoid valve (11) and an air on-off valve. If the pressure of the compressed air filled in the air ...


7
Kim Chul Joong, Kim Jung Mook Et Al: Optocoupled differential type high speed separationamp. circuit. Korea Atomic Energy Res Inst, July 23, 1994: KR1019910000602

Improving a frequence band of input signal by increasing the switching freq. of separated input power supply, and connecting the opto coupler differentially, the system provides an amp. circuit which removes the limitation of response delay and low freq. band. The amp. circuit comprises: an input po ...


8
Lee Jong Min, Jung Do Hyung Et Al: Method and apparatus for frequency stabilizing and wavelength scanning of lazer by use of linear photodiode array. Korea Atomic Energy Res Inst, October 19, 1994: KR1019910009320

The method and apparatus is for frequency stabilizing and wavelength scanning of the lazer by sensing spatial movement of interference patterns of an etalon. The apparatus comprises a beam splitter (3) making part of lazer beams (4) incident over the temperature stabilized etalon (5); an electric ci ...


9
Lee Jong Min, Jeong Do Yeong Et Al: Method and apparatus for frequency stabilization of continuous oscillation-laser by detectiong movement of interferometric fringe with dual element photodiode. Korea Atomic Energy Res Inst, October 22, 1994: KR1019910009322

The apparatus provides a method which stabilizes frequency of continuous oscillation by detecting movement of interometric fringe to compensate output vibration in laser. The apparatus comprises a dual photodiode (9) having data about the fluctuation direction and width of frequency, one photodiode ...


10
Lee Jong Min, Jeong Do Yeong Et Al: Method and apparatus for frequency stabilization of pulse-laser by detecting movement of interferometric fringe with dual element photodiode. Korea Atomic Energy Res Inst, October 22, 1994: KR1019910009321

The apparatus provides a method which stabilizes frequency by detecting movement of interferometric fringe to compensate output vibration in laser. The apparatus comprises a dual photodiode (9) for detecting one movement of interferometric fringes (8) made after passing laser beam through an interfe ...