• Journal of Aquaculture
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• v.18 no.4
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• pp.236-244
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• 2005

Experiments were performed to investigate the effects of the different anesthetic MS-222 and lidocaine-HCl doses on the blood physiological responses, on the time required for anesthesia and recovery, and on the survival rates of black rockfish (Sebastes schlegeli). Plasma cortisol was its highest levels (96.1$\pm$12.1 ng/ml) at 6 hours after the administration of 300 ppm of MS-222, and in all groups, plasma cortisol levels were higher than the initial levels during the anesthetic experiment. Fish receiving lidocaine-HCl also exhibited higher than initial plasma cortisol levels at almost experimental intervals. The middle size fish exhibited the highest glucose level (143.3$\pm$14.5 mg/dl) at 50 ppm of anesthesia after 1 hour, and every level was significantly higher than the initial level for at least 12 hours. Glucose levels in fish to which lidocaine-HCl was administered were comparable to the levels seen in conjunction with MS-222 treatment. In fish anesthetized with MS-222, K+ levels in the small size fish were significantly elevated after 1 hour, while Na+ levels did not change in any of the groups throughout the experiment. Anesthetic time was significantly attenuated with increases in the concentrations of MS-222 and lidocaine-HCl. We also noted a correlation between anesthetic time and fish size, in that larger fish took a longer time, followed by the middle size and then the small size fish. The all fish size groups showed above $95\%$ survival rates at every experimental concentration in MS-222 and 300-400 ppm in lidocaine-HCl. The results may indicate that 100-200 ppm MS-222 and 400 ppm lidocaine-HCl are the most effective doses as sedatives for the black rockfish and these doses could be used as the suitable anesthetics doses.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.412-419
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• 2017

Purpose:This study was conducted to identify the effects of theSemi-Fowler's position on post-operative recovery and pain for patients with laparoscopic abdominal surgery Methods: This study utilized a non-equivalent control group non-synchronized design to validate the effects of theSemi-Fowler's position. After IRB approval, 56 patients took part in this study, 29 in the experimental group and 27 in the control group. Consent was obtained from the participants. The Semi-Folwer's position was applied to experimental group and the supine position was applied to the control group for 24 hours after surgery. All data were reviewed retrospectively from April to June 2016. Collected data, frequency, percentage, average, standard deviation, chi-squared test, independent t-test and repeated measures ANOVA were conducted using SPSS 20.0. Results: There was no significant difference between the experimental and control group with regard to recovery outcomes; however, there was a significance differencebetween groups and among check times with regard to post operational pain. Conclusion:The results of this study provide information that will be usefulto the development of strategies for improving recovery outcomes and pain for laparoscopic operation patients.

• Environmental Mutagens and Carcinogens
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• v.9 no.1
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• pp.33-46
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• 1989

본 연구는 알킬화제를 처리한 CHO-K1 세포에서 DNA 복제억제와 그 회복과정의 분자론적 기작을 규명할 목적으로 방사선 이중 표지에 의한 DNA 합성율의 측정, 알칼리 자당 농도구배 초원심분리법에 의한 DNA 분자량과 후복제 회복율을 측정하여 다음과 같은 결과를 얻었다. (1) 1mM methyl methanesulfonate (MMS)와 1nM N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) 이하의 낮은 농도의 처리군에서는 DNA 합성율이 급격히 감소하였으나, 2 mM MMS, 2mM MNNG이상의 농도에서는 그 감소양상이 둔화되었다, (2) DNA 합성율은 알킬화제의 처리 직후 감소하였다가 시간경과에 따라 회복되어 처리후 4시간 째에는 대조군 수준 또는 그 이상으로 회복되었다.

• The Korean Journal of Zoology
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• v.20 no.1
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• pp.41-48
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• 1977

Dose response of DNA repair synthesis induced by bleomycin was dose-dependent in lower doses, and maximum rate of it at 5 $\\mu$g/ml represents about 15% of total cells analyzed. At higher doses DNA-repair synthesis was reduced and the rate of it remained unchanged even prolonged treatment. Pretreatment with BUdR or IUdR was found to enhance DNA repair synthesis and also to interfere with semiconservative DNA synthesis at higher doses. Time dependence study showed that DNA repair synthesis occurred as long as for 24 hours after removal of bleomycin. These results seem to suggest that bleomycin is not to be an effective chemical in inducing excision repair and that damages induced in DNA by this drug might include not only strand breaks but other types of DNA damage.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.04a
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• pp.71-72
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• 2013

이 연구는 하트세이버를 배지를 수여 받은 구급대원과 심정지 환자 중 심폐소생술로 자발순환이 회복된 후 환자를 대상으로 심정지 생존의 요인을 파악하고 분석한 결과 심정지에서 소생한 환자의 75%가 가정에서 발생되었으며, 출동에서 현장까지 도착 소요시간이 6.1분, 현장심폐소생술 소요시간 6.2분, 출동에서 병원 응급실 도착까지 소요시간 23.0분이 소요되었다. 또한 목격자에 의해 시행된 심폐소생술은 50.0%, 발견 당시 심장리듬은 심실세동이 87.5%, 무수축 12.5%였고, 심폐소생술과 동시에 자동제세동기를 사용한 환자는 87.5%, 심폐소생술만 시행한 환자 12.5%, 기관내삽관 시행이 12.5%였다. 자발순환이 회복된 환자에게 시행된 심폐소생술 소요시간은 10.9분 이었으며, 책임구급대원은 1급응급구조사가 75.0%, 출동 구급인원은 3명 출동이 87.5%였다.

• The Safety technology
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• no.168
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• pp.6-10
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• 2011

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.7-10
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• 2004

회복기법은 비공유 공간 데이터베이스 클러스터에서 고가용성을 위해 매우 중요하게 고려되고 있다. 일반적으로 데이터베이스 클러스터의 회복기법은 노드의 오류가 발생한 경우 로컬 로그와는 별도로 클러스터 로그를 생성하며, 이를 기반으로 해당 노드에서의 회복과정을 수행한다. 그러나, 기존의 기법은 하나의 레코드를 위해 다수의 갱신정보를 유지함으로써 클러스터 로그의 크기가 증가되고, 전송비용이 증가된다. 이는 회복노드에서 하나의 레코드에 대해 털러 번의 불필요한 연산을 실행하여 회복시간이 증가되고, 전체적인 시스템의 부하를 증가시키는 문제를 발생시킨다. 본 논문에서는 비공유 공간 데이터베이스 클러스터에서 확장성 해싱 기반의 로그를 이용한 회복기법을 제안한다. 제안기법에서의 클러스터 로그는 레코드 키값을 이용한 확장성 해싱을 기반으로 레코드의 변경사항과 실제 데이터를 가리키는 포인터 정보로 구성된다. 확장성 해싱 기반의 클러스터 로그는 크기와 전송비용이 감소하며, 회복노드는 하나의 레코드에 대해 한번의 갱신연산만 실행하므로 빠른 회복이 가능하다. 따라서 제안 기법은 확장성 해싱 기반의 클러스터 로그를 이용하여 효율적인 회복처리를 수행하며, 시스템의 가용성을 향상시킨다.

• Elastomers and Composites
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• v.44 no.4
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• pp.442-446
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• 2009

Recovery behaviors of unfilled NR, BR, and SBR vulcanizates after aging with a circular deformation were compared to prevent the influence of reinforcing agent. Samples were aged at room temperature, 50, 70, and $90^{\circ}C$ for 10 days. Recovery increased by increasing the measurement time. Instantaneous recoveries less than 1.0 sec were obtained using the recovery variations with the measurement time. For aging at room temperature, difference in the recoveries of the rubber samples was not significant because the aging time was too short. However, for accelerated thermal aging at 50, 70, and $90^{\circ}C$, difference in the recoveries of the rubber samples was significant. Degree of recovery of BR specimen was higher than those of the others, while that of SBR was lowest. However, for accelerated thermal aging at $90^{\circ}C$, recovery of the NR sample was higher than that of the BR one. The initial recovery decreased by increasing the aging temperature and the decrement of SBR was larger than the others. The experimental results were explained with the resilience properties of rubbers and the crosslink density changes by thermal aging.

• Applied Biological Chemistry
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• v.38 no.3
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• pp.207-211
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• 1995

In order to determine the mechanism of cold tolerance in crops, changes in biochemical factors related with the biological reduction of molecular oxygen upon cold shock treatment were analyzed at an early stage of Brassica germination. As the cold shocked seedlings were recovered under the normal growth condition for 24 hours, the peroxidase activities in cold sensitive rape(B. napus) and cold tolerant 'Sandongchae'(B. campestris) were considerably increased by 33% and 87% in root fraction and, 84% and 206% in hypocotyl, respectively. The content of superoxide($H_2O_2$) in hypocotyl fraction was dramatically accumulated until 8 hours after recovery and then gradually decreased. The extent of superoxide accumulation was severer in B. napus than B. campestris. At 24 hours after cold shock, $H_2O_2$ content was decreased to the nearly control level in B. campestris but still remained by 38%, in E. napus. Even though $H_2O_2$ content in hypocotyl fraction was decreased only 2% in B. napus during cold shock, while in B. campestris it was severely decreased about 15%. On the other hand, the cold shock at 3 days after Uniconazole treatment was more effective in increase of peroxidase activity than each separate treatment.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.02a
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• pp.248-248
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• 2013

저소음, 저진동이 장점인 맥동관형 냉동기 및 이를 이용한 크라이오 펌프를 국산화하는 연구개발사업이 상당히 진전되어 첫 번째 시제품을 완성했다. 3개월 여에 걸쳐 냉동기 냉동능력, 진동 및 펌프 냉각시간을 포함해서 질소, 수소 또는 알고에 대한 펌프 배기속도, 배기용량, 최대유량, 교차값, 알곤회복시간 등 규격, 비규격을 통틀어 모든 평가항목을 망라하는 펌프 배기 성능시험을 완료했다. 성능평가결과에 나타난 시제품의 장단점을 분석하여 보완 및 개선점을 찾고 이를 완제품 제작에 반영하려고 한다. 내경 14인치인 크라이오 펌프 시제품의 질소 배기속도는 목표치를 30% 정도 상화하여 4,600 L/s가 나왔고 배기용량은 약 45만 $mbar{\cdot}L$에 달했으며 교차값은 2,200 $mbar{\cdot}L$로 측정되었다. $5{\times}10^{-8}$ mbar 기준 알곤 회복시간은 2분 정도로 5분 이내라는 기준을 만족했다. 한편 20 K까지 펌프 냉각시간이 135분이므로 15분 이상 단축이 필요한데 이는 열차폐 특히 배플의 열적설계를 개선함으로써해결하려고 한다. 그리고 수소에 대한 배기성능 개선을 위해 활성탄 어레이의 제작공정을 표준화할 필요가 있다.