南쉐틀랜드 群島 맥스웰灣의 海藻相

鄭豪城(Ho Sung Chung),姜榮喆(Young Chul Kang),金東燁(Dong-Yup Kim) 한국해양과학기술원 1990 KOREAN JOURNAL of Polar Research Vol.1 No.1

북극 스발바드 군도 Kongsfjorden의 해조상

김지희,정호성,최한구,김예동,Kim, Ji-Hee,Chung, Ho-Sung,Choi, Han-Gu,Kim, Yea-Dong 한국해양과학기술원 2003 Ocean and Polar Research Vol.25 No.4

Marine benthic flora was investigated in an Arctic bay. Specimens of chlorophyte, phaeophyte, and rhodophyte were collected and examined over the period from July to August 2003 from Kongsfjorden Spitsbergen in Svalbard Islands. A total of 28 genera and 32 species (5 chlorophytes, 18 phaeophytes, and 9 rhodophytes) was identified and described. A green alga Enteromorpha linza(Linnaeus) J. Agardh, a brown alga Asperococcus compresus Griffiths ex Hooker, and three red algae Gracilaria gracilis (Stackhouse) Steentoft et al., Rhodymenia pacifica Kylin and Schizochlaenion rhodotrichum Wynne et Norris were recorded in Svalbard Islands for the first time.

비접지 DC 급전시스템에서의 Delta-I 지락보호계전 시스템

鄭相基(Sang-Gi Chung),權三榮(Sam-Young Kwon),鄭澔聖(Ho-Sung Jung),金周落(Ju-Rak Kim) 대한전기학회 2006 전기학회논문지A Vol.55 No.12

In DC tracking power supply system, ground faults are currently detected by the potential relay, 64P. Though 64P relay detects ground fault, it cannot identify the faulted region which causes long traffic delays and safety problem to passengers. A new ground fault protective relay scheme, △I ground fault protective relay, that can identify the faulted region is presented in this paper. In △I ground fault protective relaying scheme, ground fault is detected by 59, overvoltage relay, which operates ground switch installed between the negative bus and the ground. It preliminarily chooses the faulted feeder after comparing the current increases among feeders and trips the corresponding feeder breaker. After some time delay, it then recloses the breaker if it finds the preselected feeder is not the actual faulted feeder. Whether or not the preselected feeder is the actual faulted feeder is determined by checking the breaker trip status in the neighboring substation in the direction of the tripped breaker. If the corresponding breaker in the neighboring substation is also tripped, it finally judges the preselected feeder is actually a faulted feeder. Otherwise it recloses the tripped breaker. Its algorithms is presented and verified by EMTP simulation.

극지식물 Silene acaulis subsp. arctica의 유근 유래 캘러스로부터 다신초 유도와 기내 증식

서효원,이정윤,박영은,강성호,정호성,김지희,Seo, Hyo-Won,Yi, Jung-Yoon,Park, Young-Eun,Kang, Sung-Ho,Chung, Ho-Sung,Kim, Ji-Hee 한국식물생명공학회 2006 식물생명공학회지 Vol.33 No.4

고위도 북극지역에 분포하는 고등식물인 Silene aoaulis subsp. arctica (Caryophyllaceae)의 유근에서 유도된 캘러스로 부터 다신초를 재분화시키는 방법을 통하여 이 식물의 효율적인 기내 증식 방법을 확립하였다. 북극권 노르웨이령 Svalbard로부터 수집한 S. acaulis subsp. arctica의 종자를 발아시키고 0.25mg/L 2,4-D와 1mg/L $GA_3$가 포함된 고체 MS 배지상에서 $10{\pm}1^{\circ}C$와 $23{\pm}1^{\circ}C$ 온도조건으로 발아된 종자의 유근으로 부터 캘러스를 유도하였다. 캘러스가 형성된 2주 후부터는 0.25mg/L BA와 0.05mg/L NAA가 포함된 MS 배지에서 재분화가 효율적으로 이루어졌다. 재분화된 다신초들의 총 생체량 증가는 $23{\pm}1^{\circ}C$의 온도와 1/2 MS 배지에서 가장 높은 것으로 나타났다. 기내에서 다신초로 재분화된 식물체는 인공 상토에서 정상적인 식물체로 성장하였다. We describe here an efficient in vitro propagation method of Silene acaulis subsp. arctica (Caryophyllaceae), one of the higher arctic angiosperms, through the multiple shoot regeneration after callus induction from the radicle. The seeds of S. acaulis subsp. arctica collected from Svalbard, the Norwegian Arctic, were germinated and calli were induced from the radicle on solid MS media supplemented with 0.25mg/L 2,4-D and 1mg/L $GA_3$ at both $10{\pm}1^{\circ}C\;and\;23{\pm}1^{\circ}C$ Two weeks after callus induction, the multiple shoots were efficiently regenerated on the MS media supplemented with 0.25 g/L BA and 0.05mg/L HPh. The total biomass increment of regenerated shoots increased most efficiently of S. acaulis subsp. afctica was showed the maximum efficiency in at $23{\pm}1^{\circ}C$ on 1/2 MS salt strength. The multiple regenerated plantlets of S. acaulis subsp. arctics were grown to normal plants on soil.

접지망 시뮬레이션을 통한 직류 전기철도에서의 위험전위 분석

김진희(Jin-Hee Kim),정호성(Ho-sung Jung),김형철(Hyung-Chul Kim),조대훈(Dae-Hoon Cho),류청희(Chung-Hee Ryu),남승욱(Seung-Uk Nam) 대한전기학회 2011 대한전기학회 학술대회 논문집 Vol.2011 No.4-1

세종기지 주변의 1988/89년 자연환경

장순근(Soon-Keun Chang),김동엽(Dong-Yup Kim),이방용(Bang Yong Lee),정호성(Ho Sung Chung) 한국해양과학기술원 1990 KOREAN JOURNAL of Polar Research Vol.1 No.1

절연구분장치 사용 현황 고찰

이기원(Kiwon Lee),창상훈(Sanghoon Chang),조용현(Yong-Hyeon Cho),권삼영(Sam-Young Kwon),정호성(Ho-Sung Chung) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.10

중등도 두부외상 환자의 관리에 대한 임상적 고찰

정호성,박철완,이근 대한응급의학회 1993 대한응급의학회지 Vol.4 No.2

The aim of present study is to determine the initial treatment of patients who appeared to have sustained moderate head injuries when first evaluated a the department of emergency medicine. The authors reviewed the records of 221 patients whose initial Glasgow Coma Scale (GCS) scores ranged from 9 to 12, as well as another 96 patients with GCS scores of 13. All patient underwent brain computed tomography(B-CT) at the time of initial evaluation. In 55.8% of these patients the B-CT were abnormal, and 33.4% required neurosurgical intervention. The overall mortality rate was 12.3%. Over forty percent of patients with GCS scores of 13 had abnormal lesion on B-CT and 12.5% of them required neurosurgical operation. This results suggest that an initial GCS scores of 13 should be classified as the moderate head injury group. Above results indicate that all patients wit6h moderate head injury on intial examination must be admitted to the hospital and undergo urgent B-CT. Patients with intracranial lesion require immediate neurosurgical consultation and admission to critical-care unit. B-CT should be repeated in patients whose recovery is less rapid than expected and in all patients with evidence of clinical deterioration : this was necessary in almost half of the patient in this group, and 19.2% were found to have progression of radiological abnormality or had newly developed lesion on serial B-CT.

경추 손상후 사망례에 대한 분석

정호성,김상은,이준형,박철완,이 근 大韓應急醫學會 1996 대한응급의학회지 Vol.7 No.1

Mortality after cervical spine injury(CSI) is reported as high as 10∼30%, and it is intimately related to the initial management and cardiopulmonary function. We analyzed the cause of death for 29 patients who expired at Chung Ang Gil Hospital after CSI between 1990 and 1994. Of 198 patients with CSI, 43 patients(21m7%) died. Except 14 cases with concomitant fatal head injury and/or multiple systemic injuries, the mortality rate of CSI was 14.6%. Male to female ratio was over 6:1. Fourth to sixth decades constituted 69.0%. Common causes of CSI were traffic accidents(58.6%) and fall/slip(34.5%). The level of CSI was above C5(upper cervical group: UCG) in 65.5%, and below C4(lower cervical group: LCG) in 34.5%. Most of them(86.2%) died within four weeks after CSI. Early death(within 7 days) was more common in the UCG(57.9%) than the LCG(20.0%). Associated injuries were found in 72.4%, and the head injury was the most common one. The higher the Injury Severity Score(ISS), the earlier the patients expired(Fisher`s test, P<0.05). On arrival, hypotension(systolic blood pressure below 90mmHg), bradycardia(less than 60/min), and respiratory arrest was found in 31.0%, 34.5% and 17.2%, respectively. The episode of bradycardia was found in 58.6%. It was more common in cases of early death(69.2%) than those of the late death(50.0%). Hypoxia, hypercarbia, and acidosis was observed in 20.7%, 17.2%, and 51.7%, respectively. Respiratory failure was responsible for the majority(89.7%) of death. In UCG and the cases of the early death, primary respiratory dysfunction was the main cause of death, while in LCG and the cases of the late death, pulmonary complication was the major reason(Fisher`s test P<0.01, P<0.01, respectively).

정신분열병 환자의 분노 경험과 표현

정호성,송지영,정근재 대한신경정신의학회 2000 신경정신의학 Vol.39 No.6

연구목적 : 정신질환자에 대한 편견은 이들에 대한 치료에 큰 영향을 미치고, 이들이 사회 적응과 재활에 어려움을 겪는 요인이 된다. 저자는 정신분열병 환자들이 느끼는 분노의 특징과 표현이 일반인에 비해 과연 크고 광범위한 것인지에 대하여 알아보고, 나아가서 이들 환자에 대한 편견을 시정할 수 있는 근거를 얻고자 하였다. 방 법 : DSM-IV에 의거한 정신분열병 환자 105명과 대조군으로 대학병원 내과에 입원한 환자 43명, 그리고 건강한 성인 65명을 대상으로 한국판 State-Trait Anger Expression Inventory를 이용한 분노의 경험과 표현을 조사하여 정신분열병 환자군의 분노의 특성을 비교 분석하였다. 결 과 : 정신분열병 환자군이 건강대조군보다 상태 분노가 유의하게 높았고, 특성-기질은 다른 두 군에 비해 유의하게 낮았다. 분노 표현 척도 중에 분노 억제와 분노 통제는 건강대조군에 비해 정신분열병군에서 유의하게 낮았다, 그러나 특성-반응과 분노-표출은 유의한 차이가 없었다. 그리고 병식 유무에 따라 세 군간에 분노 척도를 비교해 본 바 모든 척도에서 유의한 차이를 보이지 않았다. 결 론 : 정신분열병 환자들은 정상대조군에 비교해 볼 때 상당한 분노를 가지고 있고, 분노 억제와 조절 능력은 부족한 점을 보여주고 있다. 그러나 분노의 표출은 크지않다고 할 수 있다. 이러한 결과는 정신분열병 증상의 하나인 자아기능의 약화일 수도 있으나 만성화에 따른 음성증상에 의한 것일 수도 있다. 이들의 예기치 않는 적대적 행동이나 난폭한 행동은 급성기가 아닌 시기에는 주위 환경에서 비롯된 자극에 따른 반응일 수 있다. 그러므로 정신분열병 환자는 무조건 위험하다는 잘못된 견해는 시정되어야 할 것이다. 그리고 향후 정신분열병 환자가 갖는 분노의 특성으로 파악하는 것은 예기치 않는 이들의 분노 표현에 대처하는 방법을 찾는데 도움이 될 수 있을 것이다. Objectives : The prejudice against mentally deranged persons has an effect on the treatment of the mental illness and is one of the reasons shy they have difficulties in social adaptation and rehabilitation. We intended to examine the characteristics and expression of the anger in schizophrenic patients to find how much anger they feel compared with general population. And we tried to find the basis on which the prejudice can be corrected. Method : 105 schizophrenic patients were selected according to DSM-IV. Control groups were 43 patients who were admitted to the department of internal medicine in university hospital and 65 healthy adults. The experiences and expressive patterns of anger were surveyed by State-Trait Anger Expression Inventory, Korean edition. And the characteristics of the anger in the schizophrenic patients were compared with those in controls and analyzed. Results : State-anger was significantly higher in the schizophrenic patients group than in healthy control group and trait-temperament was significantly lower in schizophrenic patients group than in other two control groups. Among the anger expression scales, anger-in and anger-control were significantly lower in schizophrenic patients group than in healthy control group. But trait-reaction and anger-out showed no significant difference among three groups. And no significant difference was shown among the anger scales of three groups according to the presence of insight of the disorder. Conclusion : It is shown that schizophrenic patients have considerable much anger when compared to healthy control group and insufficient ability to suppress and control the anger. But it may be said that the expressions of anger in schizophrenic patients are not apparent. These results may be due to either the weakness of ego function, which is one of the symptoms of schizophrenia, or negative symptoms following chronicity of the disorder. Unexpected aggressiveness or violence of them may be triggered by stimuli from the circumstances, if they are not in acute phase. And the misunderstanding of general public that schizophrenic patients are dangerous unconditionally should be corrected by the education. We can't develop the appropriate strategy to cope with the anger of the schizophrenic patients until understand well the characteristics of anger in them.