저장기간에 따른 3개 수종의 종자 및 발아 특성 변화

한심희,김찬수,장석성,이현주,탁우식 한국농림기상학회 2004 한국농림기상학회지 Vol.6 No.3

This study was conducted to examine the changes in the seed physical characters and germinative properties of three tree species at three different storage times in order to determine the most suitable storage time and condition. Seed physical characters and germinative properties were examined from seeds of Fraxinus rhynchophylla, Zanthoxylum schinifolium and Staphylea bumalda that were stored at -18C for 1, 3 and 10 years, and the growth performance and physiological characters of their seedlings were analyzed. Seed physical characters and germinative properties showed significant differences between three storage times as well as three tree species. Seed moisture content of F. rhynchophylla and S. bumalda and seed fresh weight of Z. schinifolium decreased with increase of storage time. Storage time represented negative correlation with moisture content and fresh weight (r = -0.822, p < 0.01). Seed percent germination of Z. schinifolium and S. bumalda stored for 3 and 10 years decreased less than 15% and 10.7% respectively. Mean germination times for seed of F. rhynchophylla, Z. schinifolium and S. bumalda were delayed 11.9, 5.7 and 9.7 days after a storage time of 10 years, respectively. However the growth and viability of seedlings didn't show a special pattern for storage time and tree species.

터어키안 상부에서 발생한 뇌수막종의 미세수술적 치료

한대희,정영섭,김봉수,정희원,조병규,최길수,심보성 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.1

Suprasellar meningiomas are uncommon intracranial tumors representing approximately 4-10% of intracranial meningiomas and the total excision is sometimes hazardous because of surrounding vital structures. We have experienced four cases of this lesion during last three years and the masses were approached through frontoparietal craniotomy and lateral subfrontal approach and were removed completely with microsurgical technique. Visual disturbances were improved in three cases and unchanged in one case. The literatures are also reviewed.

핍지신경교종 37예에 대한 임상적 연구

김하영,정희원,조병규,한대희,지제근,최길수,심보성 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.4

The authors reviewed 37 consecutive cases of histologically proven oligodendroglioma who were treated at the Seoul National University Hospital, between 1979 and 1986. There was a 1.5:1 male to female ratio. The age of patients at the time of diagnosis varied between 6 and 64 years(mean 38 years), with 51% in the fourth and fifth decades. The incidence of oligodendrogliomas represented 5% of all brain tumors and 15.5% of all gliomas. All but one were located supratentorially and 54% of them involved the frontal lobe. The mean duration of symptoms prior to the surgery was 27.2 months, but seizures had a considerably longer duration of 6.4 years. The common symptoms were headache(62%), seizures( 38%), and motor weakness( 22%). The common neurological findings were papilledema(51%), motor deficit(24%), and change in cognition(19%). Six out of 37 cases(16%) presented as the spontaneous intracranial hemorrhage. Calcifications were detected on plain X-ray films of the skull in 19% of patients and fine vascular stains were found on carotid angiograms in 30% of the cases. Brain CT revealed calcification(57%), cyst formation(43%),low density(35%) and heterogenous contrast enhancement (35%). The important factors affecting the prognosis and the recurrence rate were (1) the extent of surgical excision, (2) postoperative radiation therapy, and (3) the pathologic grading. There was a significant difference in the recurrence rate between patients treated with postoperative irradiation and patients treated with surgery alone.

박달나무의 반형매 가계간 Cd Phytoremediation과 축적 특성

오창영,이재천,한심희,김판기 한국농림기상학회 2004 한국농림기상학회지 Vol.6 No.3

The main purpose of this study was to select a B. schmidtii population which has high cadmium tolerance and remediation and to determine the difference of cadmium uptake patterns among populations. One-year-old B. schmidtii seedlings were treated with 0, 0.4, 0.8mM CdSO₄ *3/8H₂O for two months. Cadmium concentrations in different positions of stem and cadmium concentrations and contents of leaves, stems and roots were analyzed. Also soil cadmium concentrations were analyzed. B. schmidtii was highest in root and lowest in shoot tip, showing a gradual decrease from root to shoot tip. The shoot to root Cd concentration ratios were over 1.26. It is concluded that B. schmidtii has good potential for phytoextraction as a shoot accumulator, which can be used for remediation of cadmium-contaminated areas. But tolerance differs between populations. Therefore B. schmidtii should be used as a means of phytoremediation after selection for Cd tolerance is performed.

CT 소견상의 소위 염증성 육아종

홍승철,김현집,정희원,조병규,한대희,지제근,최길수,심보성 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.2

Authors report 10 cases of intracranial inflammatory granulomatous lesions which were identified on CT scan and proven pathologically after surgical excision. They were composed of three cases of tuberculoma, three cases of degenerated cysticercus, two cases of healed abscess and two cases of non-specific inflammatory lesions. Most patients were children or young adults. Seizure was the most frequent presenting symptom. All cases had characteristic CT findings in common a small nodular or ring-like lesion with strong enhancement surrounded by irregular-shaped low density area. Surgical exploration is of value in that specific diagnosis would not be possible with clinical and radiological findings only.

Cd 處理에 對한 박달나무의 家系間 生理的 被害 및 抗酸化 反應 差異

吳昌泳,李景俊,李在千,韓心熙 한국임학회 2004 한국산림과학회지 Vol.93 No.7

본 연구는 Cd 처리에 대한 박달나무 유묘의 가계 간 엽록소 함량과 효소홀성에 의한 피해 및 항산화 내성 반응의 특성을 구명하고자 실시하였다. Cd 처리는 3가계의 박달나무 1년생 묘목에 0, 04, 08mM CdSO₄·8/3H₂O 용액을 이용하여 3수준으로 2개월간 실시하였다. 박달나무의 가계간 및 처리 간 피해내성반응은 엽록소 함량과 MDA(malondialdehyde) 함량, 단백질 함량, SOD(supetoxide dismutase) 활성을 이용하여 결정하였다. Cd 처리는 박달나무의 잎 내 광색소의 함량비를 변화시켰으며, 생리적 피해 지표인 MDA 함량은 모든 가계의 Cd 처리구에서 대소구보다 높게 나타났다. 또한 모든 Cd 처리구의 단백질 함량은 대조구보다 높았으며, MDA 함량과 단백질 한량은 Cd 처리 농도가 증가함에 따라 증가하였다. 한편 Cd 처리된 박달나무의 잎 내 SOD 활성은 대조구보다 증가하였으나, 0.8mM Cd 처리된 9번 가계 경우는 대조구보다 낮아졌다. 즉 박달나무는 Cd 처리에 의해 광색소 함량의 변화 및 MDA 함량 증가와 같은 생리적인 피해를 나타냄과 동시에 단백질 함량과 SOD 활성 증가를 통해 내성 반응을 나타냈다. 그러나 이리한 생리적인 피해 및 내성 반응은 가계 간에 뚜렷하게 달랐다. We investigated differences among half-sib families of Betula schmidtii seedlings in the effect of three Cd levels on physiological injury and antioxidative reaction. One-year-old seedlings of B. schmidtii were treated with 0, 0.4 and 0.8mM CCdSO₄·8/3H₂O for two months. Physiological injury and antioxidative reaction to three levels of Cd treatment determined with using photosynthetic pigments, MDA, protein contents, and SOD activity in the leaves of three half-sib families of B. schmidtii. The ratios of contents among photosynthetic pigments in the leaves of B. schmidtii were changed by Cd treatment. In additon, MDA content in the leaves of plants under Cd stress increased relative to control plants, and total protein content was also higher in the leaves of 0.4mM and 0.8mM Cd levels than control plants. The contents of MDA and total protein also increased with increasing the concentrations of Cd treatment. SOD activity in the leaves of three half-sib families increased by Cd treatment, but SOD activity of No. 9 family decreased relative to control plants at 0.8mM Cd level. In our trial, B. schmidtii treated with Cd represented physiological injuries such as the changes of photosynthetic pigments ratio and the increase of MDA content. At the same time, B. schmidtii showed tolerance responses against Cd toxicity through increasing the total protein content and SOD activity. But the physiological injury and tolerance responses were significantly different among three half-sib families exposed to 0.4mM and 0.8mM Cd.

하저를 통과하는 철도 쉴드 터널 설계시 고려사항에 대한 연구

주광수(Kwang-Sue Jue),심동현(Dong-Hyun Sim),김기창(Ki-Chang Kim),장선종(Sun-Jong Jang),최창림(Chang-Rim Choi),한석희(Seok-Hee Han) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5

최근 국가기간 철도망의 도심지 통과시 민원 및 환경, 기존 노선과의 접속 등의 이유로 구조물 근접, 하저, 퇴적층~경암의 복합지반 등 점점 더 가혹한 현장조건에서도 터널공법의 적용이 요구되어 지고 있으며, 이들 조건에서도 안전하게 시공이 가능한 쉴드(Shield) TBM에 대한 적용이 증가하고 있다. 본 고에서는 대곡~소사 복선전철 민간투자시설사업 구간 중 한강 하저를 횡단하는 철도 쉴드(Shield) TBM 터널 설계시 주요 고려사항에 대해 기술하고자 한다. 특히, 하저구간 통과시의 고수압 조건과 한강 하류지역의 지질학적 특성으로 인한 풍화대 심도가 불규칙한 복합지반, 다수의 단층파쇄대, 퇴적층 등의 불량한 지반조건을 통과하기 위한 쉴드 TBM의 검토사항과 터널안정성 확보를 위한 주요 설계 방안을 중점적으로 다루고자 한다. Recently, despite of the harsh conditions such as adjacent structures, underwater tunnel, and complex grounds, tunnel construction has been performed inevitably in underground metropolitan area because of civil complaint, environment and connection with existing railway. Thus, it has been increasingly demanded to be constructed by Shield TBM excavation method that can be a safe way under these adverse conditions. In this paper, we would like to introduce the major considerations about the shield tunnel design for passing through under the Han-River among the BTL Project of double-track electrification in the Deagok~Sosa section. Especially, Focus on key design strategies are discussed in Shield TBM and securing the tunnel stability for passing through under the river, such as high water pressure, complexity ground, many fault fractured zone, sedimentary layer

면역효소측정법(ELISA)와 Praziquantel 약물요법이 중추신경계 낭미충증의 진단과 치료에 미치는 영향

왕규창,정천기,정희원,김동규,조병규,한대희,최길수,심보성 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.4

The diagnosis and management of neurocysticercosis have changed after the recent introduction of Enzyme Linked Immuno-sorbent Assay(ELISA) and praziquantel. Authors reviewed 11 cases of surgically proved neurocysticercosis in which these new diagnostic and therapeutic methods were applied. Age was widely distributed(range 16-59, mean 40 years old). Male preponderance was noted as in other reports. EUSA was tested in all cases and 10 out of 11 cases were strongly positive, while I case of degenerated cysticercosis was negative. Praziquantel was tried but failed in 5 cases before surgical intervention. Removed cysticerci were located in the fourth ventricle(5 cases), the parenchyme(3 cases), the lateral ventricle(l case), the cistern -parenchyme(1 case), and the cisterna magna(l case). Conclusions were as followings: ELISA was reliable in the diagnosis, but was deceitful as a quantitative base during follow-up. If progressive hydrocephalus was detected on the follow-up brain CT( computerized tomography) and no improvement was found clinically after praziquantel therapy in the case of positive ELISA and hydrocephalus, authors recommend ventriculography in the case of suspicious intraventricular lesion, or recommend shunting procedure in simple hydrocephalus. If the apparent mass disappeared after praziquantel or surgical intervention in the case of positive ELISA, but no improvement occurred clinically, then authors recommend considering of mixed type cysticercosis and performing the diagnostic work-up.

측뇌실내 종괴의 감별진단 및 수술적 치료

김동규,김봉수,이상형,심기범,왕규창,정희원,김현집,조병규,최길수,한대희 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.2

We present a series of 42 patients with the lateral ventricular mass lesions who underwent operative removal between 1979 and 1992 at the Seoul National University Hospital. These lesions included 29 tumors, 10 benign cysts and 3 arteriovenous malformations. There were 20 lesions in the trigone, 14 in the frontal horn, 6 in the body, and 2 in the temporal horn. Together with the age of the patient, the location in the lateral ventricle and the CT or MR patterns, the range of the differential diagnosis of the lesions can be narrowed. The mass were removed by various surgical approaches ; 11 by the middle frontal gyrus, 10 by the superior parieto-occipital, 13 by the middle temporal gyrus, 4 by the anterior transcallosal, 2 by the posterior transcallosal and 3 by the combined approaches. The superior parieto-occipital approach left postoperative morbidities in 64% and other approaches in 20 to 25% of the cases. These morbidities included hemiparesis, hemianopsia, aphasia, memory distubance and seizure. Most hydrocephalus disappeared without the shunting procedure after removal of the lateral ventricular mass. The high frequency of postoperative complications in the superior parieto-occpital approach require meticulous consideration in the selection of this approach.

수목의 장기 기후변화 연구시설: CO₂ 폭로용 상부 개방형 온실

이재천,김두현,김길남,김판기,한심희,Lee, Jae-Cheon,Kim, Du-Hyun,Kim, Gil-Nam,Kim, Pan-Gi,Han, Sim-Hee 한국농림기상학회 2012 한국농림기상학회지 Vol.14 No.1

본 연구는 외국에서 이용해 왔던 기존의 상부 개방형 온실의 단점을 보완하여, 장기적인 연구가 요구되는 수목을 대상으로 설치한 상부 개방형 온실의 운영결과를 제공하고자 하는 것이다. 이 자료에는 이산화탄소의 농도 조절 능력 및 안정성을 비롯하여, 대기와 OTC 내부 간의 미세환경 차이에 대한 정보를 포함하고 있다. OTC 시설은 대조구인 OTC 외부 시험구, 대기와 동일 $CO_2$ 농도의 OTC 시험구, 대기 $CO_2$ 농도의 1.4배 증가시킨 OTC 시험구, 대기 $CO_2$ 농도의 1.8배 증가시킨 OTC 시험구로 구성되어 있다. 이시설은 온실 6기, $CO_2$ 폭로장치 6기, $CO_2$ 제어장치 6기, 액화탄산가스 탱크 1기, 제어감시실 1실로 구성되어 있다. 온실 6기는 직경 10m, 높이 7m의 10각형 구조물로 제작되었으며, 상부 개구율은 75% 이상을 유지하고 있다. $CO_2$ 폭로를 위해 16개 원통형 토출배관을 도입하였다. OTC의 평균 가동률은 2010년 6월에 94.2%로 가장 낮았으나, 7월 이후부터는 98% 이상의 가동률을 나타냈고, 2011년에는 100% 가동률을 보였다. 2010년과 2011년 모두 $CO_2$ 농도 조절 결과는 목표 값에 도달하였으며, 2011년이 보다 안정된 값을 나타냈다. 2011년 무처리 OTC의 $CO_2$ 농도는 목표 값의 106%였으며, 1.4배 OTC는 목표 값의 100%, 1.8배 OTC는 목표 값의 94%였다. 대기와 OTC 내부의 온도는 오전 10시부터 오후 2시 사이에 차이가 가장 컸는데, 편차는 $1.2{\sim}2.0^{\circ}C$를 기록했으나, OTC간 온도 차이는 크지 않았다. 대기와 OTC 내부간 상대 습도의 차이는 0.1~1% 사이로 매우 적었다. OTC를 운영하는데 사용된 $CO_2$ 가스 소비량은 2010년과 2011년 6월에 가장 많은 11.33톤과 17.04톤을 기록했다. The open-top chamber (OTC) system is designed for long term studies on the climate change impact on the major tree species and their community in Korea. In Korea Forest Research Institute (KFRI), the modified OTC system has been operating since September 2009. The OTC facility consists of six decagon chambers (10 meters in diameter by 7 meters high) with controlled gas concentration. In each chamber, a series of vertical vent pipes are installed to disperse carbon dioxide or normal air into the center of the chamber. The OTC is equipped with remote controlled computer system in order to maintain a stable and elevated concentration of carbon dioxide in the chamber throughout the experimental period. The experiment consisted of 4 treatments: two elevated $CO_2$ levels ($1.4{\times}$ and $1.8{\times}$ ambient $CO_2$) and two controls (inside and outdoors of the OTC). Average operational rate was the lowest (94.2%) in June 2010 but increased to 98% in July 2010 and was 100% during January to December 2011. In 2010~2011, $CO_2$ concentrations inside the OTCs reached the target programmed values, and have been maintained stable in 2011. In 2011, $CO_2$ concentrations of 106%, 100% and 94% of target values has been recorded in control OTC, $1.4{\times}$ $CO_2$-enriched OTC and $1.8{\times}$ $CO_2$-enriched OTC, respectively. With all OTC chambers, the difference between outside and inside temperatures was the highest ($1.2{\sim}2.0^{\circ}C$) at 10 am to 2 pm. Temperature difference between six OTC chambers was not detected. The relative humidity inside and outside the chambers was the same, with minor variations (0~1%). The system required the highest amount of $CO_2$ for operation in June, and consumed 11.33 and 17.04 ton in June 2010 and 2011, respectively.