• Proceedings of the KSRS Conference
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• 2005.10a
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• pp.557-560
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• 2005

The Korea Multi-Purpose SATellite-2 (KOMPSAT -2) will be launched into a circular sun synchronous orbit in Dec. 2005. For the mission operation of the KOMPSAT-2 satellite, KARl Ground Station (KGS) consists of the Mission Control Elements (MCE), Image Reception & Processing Elements (IRPE) and the overseas stations. For the oversea stations, the Kongsberg Satellite Services (KSAT) is the prime supplier of support service. KSAT has the capability to provide Tracking Telemetry and Commanding (TT&C) nominal, contingency and anomaly support for every single orbit for most polar orbiting satellites. Also KSAT provides nodal service through the network management functionality for all oversea ground stations. This paper describes the oversea stations and the support for Launch and nominal TT&C services for KOMPSAT-2 and the operation plan for KOMPSAT-2.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.12 no.1
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• pp.50-55
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• 1999

We have investigated the $LiMn_2O_4$system as an cathode material for lithium rechargeable batteries. $LiMn_2O_4$spinel oxides have been synthesized by a solid state methode. We varied sintering time at a fixed sintering temperature of 75$0^{\circ}C$. In order to investigate the electrochemical properties of prepared $LiMn_2O_4$we assembled three-electrode cells using the working electrode as active material and Li metal as the counter and reference electrodes. The electrolyte was 1 M LiPE$_{6}$-EC:DEC(1:1 by volume). The particle size of sample synthesized at 75$0^{\circ}C$ ranged about 60$\mu m$. The discharge capacity of a cell involving spinel $LiMn_2O_4$ increased with increasing sintering time.e.

• Journal of Chest Surgery
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• v.10 no.2
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• pp.250-267
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• 1977

Open heart surgery has been performed on 20 patients, using hemodilution principle under the moderate hypothermia from Dec. 1975 through Aug. 1977 at the Department of Thoracic and Cardiovascular Surgery, Kyungpook National University School of Medicine. All these patients, body surface area ranged from 0.53 to 1.67$M^2$, were divided into two groups as a child group [below 15 yrs] and a adult group[above 15 yrs]. The oxygenator were primed with fresh ACD blood, 5 per cent dextrose, Hartmann`s solution, 15 per cent mannitol, sodium bicarbonate, dexamethasone and antibiotics. The average flow rate was 2.0 L/$M^2$/min. in child group and 2.3L/$M^2$/min. in adult group. The degree of hemodilution in child and adult group was 30.7% and 29.3% respectively. The minimal value of rectal temperature was $30.84{\pm}0.7^{\circ}C.$, in child group and $30.0{\pm}1.5^{\circ}C.$, in adult group. We studied the changes of hemodynamic status, blood components, electrolyte, acid-base status. blood lactic acid and urine output during and after cardiopulmonary bypass.

• Journal of Korean Society for Atmospheric Environment
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• v.12 no.5
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• pp.587-591
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• 1996

An intercomparison experiment was implemented to assess the uncertainties and precisions om atmospheric SO$_{2}$ measurement techiques including a pulsed fluorescence (P-F), a diffusion-scrubber /ion chromatography (D-I), and a mist-chamber/ion chromatography (M-I). Each of those three techniques was investigated by researchers at Seoul National University, Yonsei University, and Hankuk University of Foreign Studies, respectively. The concentrations of atmospheric SO$_{2}$ were determined concurrently using three independent measurement techniques at the Seoul National University campus, Korea during Nov.22 to Dec.2, 1995. While the results from the P-F and D-I techinques showed the very close agreements (within +-5%) throughout the experiment period, M-I technique showed systematically smaller values (up to 30%) than the other two techniques. Although sources of larger discrepancy between different techniques were mot identified, the lower SO$_{2}$ values of the M-I method may be related to the errors associated with sample collection effciency, mass flow rate measurements, and standardization of ion chromatography.

• Macromolecular Research
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• v.9 no.5
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• pp.247-252
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• 2001

Tricyclic aliphatic dianhydride monomer, tricycle[4.2.2.0]dec-9-ene exo, endo-3,4: 7,8-tetra-carboxylicdianhydride (TCDDA), was synthesized by photochemical reaction and poly(amic acid)s from TCDDA and diamines such as 1,4-bis-(4-aminophenoxy)benzene (BAB), 2,2-bis(4-(4-aminophenoxy) phenyl) propane (BAPP), 2,2-bis(4-(4-aminophenoxy)phenyl)hexafluoropropane (BAPHF), bis(4-(4-ami-nophenoxy) phenyl)sulfone (BAPS), and 1,4-bis-(4-aminophenoxy)biphenyl (BABP) were prepared. The inherent viscosities of the poly(amic acid)s were between 0.39 and 0.50 dL/g. The poly(amic acid)s were converted to polyimide films by thermal imidization. The glass transition temperatures (T$\_$g/) of the polyimides were in the range of 201-263$\^{C}$. The thermogravimetric analysis (TGA) thermogram of these polyimides showed the temperatures of 5% weight losses between 375 and 393$\^{C}$ in nitrogen atmosphere. To show their utility for image generation, degradations of these polyimides in UV exposure were investigated by UV spectroscopy.

• Journal of Chest Surgery
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• v.16 no.2
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• pp.255-259
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• 1983

Thirteen cases of traumatic diaphragmatic injuries treated at the Dept. of Thoracic & Cardiovascular Surgery in Kyung-Hee University Hospital from Jan. 1973 to Dec. 1982, were reviewed in this study. 1. Of 13 cues, 11 were male and 2 were female, a ratio of 5.5:1. This ratio revealed high incidence in male patients. The age distribution was ranged from 2 to 59 years. 2. The causes of traumatic diaphragmatic injuries; 6 were traffic accidents, 4 were stab wounds, 1 was falling down, 1 was gun shot wound and 1 was kick. 3. Operation were performed in 11 patients. No operation was done in 2 patients. 4. There were 100% of other associated injuries, the most frequent was having hemothorax. 5. 2 cases of death occurred in not operated patients. One was intracranial hematoma, and the other was hypertensive encephalopathy.

• YAKHAK HOEJI
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• v.46 no.5
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• pp.320-323
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• 2002

A method for the determination of acidic drug, mefenamic acid and ibuprofen with ion-selective electrode(ISE) using Fe(II)-di-2-pyridyl ketone oxime complex as a counter ion were developed. Benzyl-2-nitrophenyl ether(BNPE) plasticized membrane was more selective and sensitive than the other tested membranes. The acidic drug selective electrode exhibits a linear response for 10$^{-2}$ M 510$^{-5}$ M of acidic drugs, mefenamic acid and ibuprofen with a slope of -55.9 and -56.3 mV/dec. in borate buffer solution (pH 8.9). Potentiometric selectivity measurements revealed negligible interferences from aromatic and aliphatic carboxylic acid salts. The electrodes were found to be useful for the direct determination of mefenamic acid and ibuprofen in pharmaceutical preparations.

• Korean Journal of Veterinary Service
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• v.20 no.3
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• pp.281-288
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• 1997

Streptococcus suis has been identified as a major cause of contagious disease in pigs Ithas been isolated worldwide from pigs suffering from meningitis, bronchopneumonia, polyserositis, polyarthritis and septicemia. Two hundred and fifty-five lung samples of slaughter pigs with gross lung lesions were collected from Jan. to Dec. 1995 in southern Chonnam area. Isolation of S suis were tested by biochemical, serological methods and antimicrobial susceptibility. The results were summerrized as follows ; 1. S suis was Isolated from 30 of 254 pneumonic lungs, 14 Isolates were isolated only, 12 were isolated with p. multocida and 4 were isolated with unidentified Gram positive cocci. 2. In biochemical characteristics studies, all isolates were not grown in 6.5% NaCl medium, and most isolates utilized L-leucine-2-naphtylamide and trehalose, didn't utilize sorbitol, ribose and L-arabinose. 3. In slide agglutination test, 6(20%) Isolates were classified as serotype 2, 4(13.3%) isolates were as serotype l/2, 16, 2 and 2(6.6%) were as serotype 1, 4, 13. 4. S suis isolates showed marked susceptibility to amoxicillin, oxacillin, cephalothin and cepoferazone and high resistance to kanamycin, streptomycin, tetracycline and erythromycin.

• Journal of Chest Surgery
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• v.18 no.2
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• pp.283-287
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• 1985

Seven patients had undergone repair of endocardial cushion defect from Jan. 1977 to Dec. 1984 at National Medical Center. Most patients had no associated anomalies except one who had PFO, and mortality case was absent. Five patients had partial ECD and two had complete ECD [Rastelli type A]. In P-ECD patients, the atrial septal defect was closed with patch in all cases and mitral cleft was approximated with 2-3 direct stitches. In two cases of C-ECD, atrial and ventricular septal defect was closed with single patch in one case and atrial septal defect was closed with patch but ventricular septal defect was closed with patch but ventricular septal defect was closed it direct suture in the other case. Atrioventricular cleft was approximated with 2-3 direct sutures. Postop. transient A-V block was noted in 2 cases but returned to regular sinus rhythm after 2 to 6 months.

• Journal of Preventive Medicine and Public Health
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• v.7 no.2
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• pp.367-372
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• 1974

Authors reviewed 2,362 cases of consecutive vaginal and cervical smears submitted to the Department of Pathology, Pusan Gospel Hospital during one year period from Jan. 1, 1974 to Dec. 31, 1974. Prevalence of dysplasia, carcinoma in situ and invasive carcinoma of the uterine cervix was analyzed, and cost per a lesion was calculated. The followings are conclusions: 1. Prevalence of dysplasia, carcinoma in situ and invasive carcinoma was 2.88%, 0.34% and 2.58% restectively. 2. Cost per a lesion for dysplasia was calculated as 34,735 Won, for carcinoma in situ, as 295,250 Won and for invasive carcinoma as 38,721 Won. Cost per a lesion for dysplasia and carcinoma in situ was calculated as 31,079 Won and for dysplasia and for all the lesions as 17,248 Won. 3. The results obtained suggested that mass cytologic screeiding for detection of dysplasia, carcinoma in situ and invasive carcinoma was reasonable in the present status of economy.