진동만과 가막만에 서식하는 잘피 개체군의 생장 동태 및 탄소고정량 추정

김태환,박상률,김영균,김종협,김승현,김정하,정익교,이근섭,Kim, Tae-Hwan,Rark, Sang-Rul,Kim, Young-Kyun,Kim, Jong-Hyeob,Kim, Seung-Hyeon,Kim, Jeong-Ha,Chung, Ik-Kyo,Lee, Kun-Seop 한국조류학회(藻類) 2008 ALGAE Vol.23 No.3

Since seagrasses in the coastal and estuarine ecosystems achieve high levels of production, they require high inorganic carbon and nutrient incorporation. Thus, seagrasses may play a significant role in carbon and nutrient cycling in the coastal and estuarine ecosystems. To examine growth dynamics of Zostera marina L. environmental factors such as underwater irradiance, water temperature, and salinity, and biological parameters such as shoot density, biomass, shoot morphology, and leaf productivity were measured in two bay systems (Jindong Bay and Gamak Bay) on the southern coast of Korea. While underwater irradiance did not show distinct seasonal trend, water temperature at both sites exhibited clear seasonal trend throughout the experimental period. Shoot density increased dramatically during winter due to the increased seedlings through germination of seeds in Jindong Bay and due to the increased lateral shoots in Gamak Bay. Eelgrass biomass increased during winter and decreased during summer. Maximum biomass in Jindong Bay and Gamak Bay was 250.2 and 232.3 g dry weight m–a2, respectively. Carbon incorporation into the eelgrass leaf tissues was estimated from productivity and leaf tissues carbon content. The calculated annual carbon incorporations at the Jindong Bay and Gamak Bay sites were 163 and 295 g C m–`2 y–`1, respectively. This high carbon incorporation into seagrass tissues suggests that seagrass habitats play an important role as a carbon absorber in the coastal and estuarine ecosystems.

하치조신경 전달 마취 시 알칼리화 된 리도카인의 마취 효능에 관한 임상적 연구

김태환,김경욱,김철환,Kim, Tae-Hwan,Kim, Kyung-Wook,Kim, Chul-Hwan 대한악안면성형재건외과학회 2005 Maxillofacial Plastic Reconstructive Surgery Vol.27 No.3

Inferior alveolar nerve block using lidocaine is the most frequent local anesthetic method in the dental treatment, but clinically it is not always successful. The 2% lidocaine cartridge has been used commonly in dental anesthesia. It contains vasoconstrictor and antioxidant, which presents low pH which provides chemical stability and longer shelf life. But alkalinized local anesthetics has less tissue trauma, easier dissociation of the non-ionized base which penetrates nerve sheath, rapid onset and more intensity. In this study, in inferior alveolar nerve block, alkalinized lidocaine using sodium bicarbonate (experimental group) is compared with plain lidocaine (control group) about injection pain, anesthetic onset, duration and postinjection discomfort. In inferior alveolar nerve block, alkalinized lidocaine using sodium bicarbonate showed lower injection pain. There was significant difference statistically from plain lidocaine(p=0.019). Comparing with plain lidocaine, alkalinized lidocaine produced more rapid onset (lip & pulp anesthetic onset), there was no significant difference(p>0.05). but there was boundary significance (0.05<p=0.094<0.1). Alkalinized lidocaine produced higher anesthetic success rate than plain lidocaine, there was significant difference (p=0.016). There was no significant difference in duration and postinjection discomfort between alkalinized and plain lidocaine(p>0.05). These results suggest that addition of sodium bicarbonate to 2% lidocaine(1:100,000 epinephrine) for inferior alveolar nerve block is more effective for reduction of injection pain and onset time.

침술에 의한 합병증으로 발생한 저작간극 농양: 증례보고 및 문헌 고찰

김태환,이춘호,박준우,박영욱,김민근,김성곤,Kim, Tae-Hwan,Lee, Choon-Ho,Park, Jun-Woo,Park, Young-Wook,Kim, Min-Keun,Kim, Seong-Gon 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.6

The masticatory space abscess caused by the acupuncture is a rare condition. A 27-year-old Korean man presented right buccal and submandibular space abscess induced by the acupuncture during his treatment of the temporomandibular disorder. The case was presented with review of literatures.

구제역 바이러스를 대체할 모델 바이러스 선별

김태환,틸리나,김재훈,이광녕,박종현,김철중,이종수,Kim, Tae-Hwan,Herath, Thilina U. B.,Kim, Jae-Hoon,Lee, Kwang-Nyeong,Park, Jong-Hyeon,Kim, Chul-Joong,Lee, Jong-Soo 한국미생물학회 2017 미생물학회지 Vol.53 No.4

구제역 바이러스 연구가 BSL-3 시설에 제한되기 때문에 여러 가지 소독제나 항바이러스 제제에 대한 효력 및 효능 평가가 쉽게 이루어질 수 없다. 따라서 구제역 바이러스와 계통학적으로 유사한 bovine rhinovirus (BRV)와 human rhinovirus (HRV)의 특성을 열, pH 그리고 여러가지 소독제를 이용하여 평가하였다. 그 결과 구제역 바이러스의 성상과 매우 흡사한 것을 확인할 수 있었다. 이러한 결과로 BRV와 HRV는 구제역 바이러스를 대체할 수 있는 모델 바이러스로 이용이 가능하다. Researchers have comparatively fewer opportunities to conduct experiments on foot-and-mouth disease virus (FMDV), owing to the limited availability of biosafety level 3 facilities. Bovine rhinovirus (BRV) and human rhinovirus (HRV), which are genetically closely related to FMDV, have been evaluated in this study as model viruses for FMDV. To discover whether BRV and HRV have similar physicochemical properties as FMDV, virus susceptibility tests have been performed in different physical (pH and heat) and chemical (acidic/alkaline solutions and commercial disinfectants) conditions in vitro. Our data revealed that the physicochemical characteristics of BRV and HRV were nearly similar to those of FMDV.

소음인(少陰人) 소음병(少陰病)환자의 치험 1례

김태환,김현호,임은철,김은이,Kim, Tae-Hwan,Kim, Hyun-Ho,Lim, Eun-Chul,Kim, Eun-Yl 사상체질의학회 2005 사상체질의학회지 Vol.17 No.1

1. Objectives The purpose of this study is to give an account of the effects of the Korean herbal medicine therapy which is based on the Sasang constitutional medicine for the patient who has suffered from Soeum-disease(少陰病). 2. Methods The subject is a 73-year old woman who has the symptoms caused by sequella of cerebral infarction and depression mood which are headache, dizziness, ostalgia, chilling, anorexia, general weakness. 3. Results We have diagnosed her as Soeumin(少陰人), and have prescribed Kwankae bujaijung-tang(官桂附子理中湯). 4. Conclusions The consequence is the accompanied headache, dizziness, ostalgia, chilling, anorexia, and general condition has improved.

변형제 분자량 및 농도가 CMS 성능에 미치는 영향

김태환,김권일,유윤종,박종기,김종휘,조성철 ( T . H . Kim,K . I . Kim,Y . J . You,J . K . Park,J . H . Kim,S . C . Cho ) 한국화학공학회 1995 화학공학의이론과응용 Vol.1 No.2

담배거세미나방과 파밤나방에 활성이 있는 Bacillus thuringiensis subsp. aizawai CAB109 균주의 특성

김태환,김다아,김기수,서미자,윤영남,유용만,Kim, Tae-Hwan,Kim, Da-A,Kim, Ki-Su,Seo, Mi-Ja,Youn, Young-Nam,Yu, Yong-Man 한국응용곤충학회 2009 한국응용곤충학회지 Vol.48 No.4

국내에서 분리된 Bacillus thuringiensis subsp. aizawai CAB109균주가 난방제 해충으로 알려진 담배거세미나방과 파밤나방에 동시에 높은 독성을 보이는 것으로 나타났다. B.t. CAB109 균주의 활성을 평가하기 위해 혈청형이 aizawai이면서 미생물농약으로 시판중인 TB-WP제품 및 SC제품과의 살충활성을 비교한 결과, B.t. CAB109균주, TB-WP제품, SC제품은 담배거세미나방 2령충에 대한 반수치사농도($LC_{50}$)가 각각 $1.3{\times}10^5cfu/ml$, $2.3{\times}10^6cfu/ml$, $5.2{\times}10^5cfu/ml$으로 나타났고 파밤나방 2령충에 대한 반수치사농도는 $1.8{\times}10^4cfu/ml$, $1.3{\times}10^6cfu/ml$, $1.5{\times}10^6cfu/ml$으로 나타나 두 종 해충 모두에서 B.t. CAB109 균주가 독성이 더 높은 것을 볼 수 있었다. B.t. CAB109균주가 이미 알려져 있는 aizawai와 비교해 차이가 나는 새로운 유전자를 소유하는지 확인하기 위해 Plasmid DNA를 추출하여 전기영동 한 결과 B.t. subsp. aizawai HD-133과 다른 패턴을 보이는 것을 확인 할 수 있었고 Cry1-Cry5의 primer를 사용하여 PCR을 진행한 결과 B.t. subsp. aizawai CAB109균주는 Cry1Aa, 1Ab, 1C, 1D를 B.t. subsp. aizawai HD-133은 Cry1Aa, 1Ab를 가지고 있음을 확인 할 수 있었다. Bacillus thuringiensis subsp. aizawai CAB109 isolated in Korea is known active against Spodoptera sp.. Especially, B. thuringiensis aizawai CAB109 isolates showed 100% mortality against Spodoptera litura and Spodoptera exigua. To screen highly active B. thuringiensis, the pathogenicity of B. thuringiensis CAB109 was compared with that of commercialized B. thuringiensis products. $LC_{50}$ values of CAB109, product TB-WP and product SC strains of B. thuringiensis were $1.3{\times}10^5$, $2.3{\times}10^6$ and $5.2{\times}10^5\;cfu/ml$ against the 2nd larva of S. litura and $1.8{\times}10^4$, $1.3{\times}10^6$ and $1.5{\times}10^6\;cfu/ml$ against the 2nd larva S. exigua, respectively. To determine new gene's existence and absence, the plasmid DNA was extracted, and compared to that of B.t. aizawai HD-133. Both B. thuringiensis were not like plasmid DNA pattern. PCR technique was used to predict both plasmid DNA's cry gene. PCR products analysis showed that B.t. CAB109 harbor Cry1Aa, Cry1Ab, Cry1C and Cry1D and B.t. HD-133 has Cry1Aa and Cry1Ab, respectively.

미세공 조절에 의한 탄소제립물의 분자체 효과

김태환,이재훈,김권일,김종휘,성재석 ( Tae Hwan Kim,Jae Hoon Lee,Kweon Ill Kim,Jong Huy Kim,Jae Suk Sung ) 한국공업화학회 1998 공업화학 Vol.9 No.6

국민안전의식 체계화를 위한 체험공간 시설확보 방안에 관한 연구

김태환,Kim, Tae-Hwan 한국방재학회 2003 한국방재학회논문집 Vol.3 No.1

The reason of source for a tragic death by the occurrence of an event is $\ulcorner$unobservant of safety rule,$\lrcorner$ $\ulcorner$negligence of staff,$\lrcorner$ $\ulcorner$deficiency of responsibility$\lrcorner$ and $\ulcorner$deficiency of safety value$\lrcorner$ and for certain reason that is insufficiency of space for safety education also think little of a people, unobservant of safety rule, selfishness and so on. It makes new and specific plan that is simulation room before I compare the inside and outside of the country for a nation the reform of consciousness. Next, go ahead with a plan for about safety-simulation room. The Government can support to plan if it make a proposal to center of Government. It should be make a people of safety system, and it build the safety-simulation room $1{\sim}2$ in the city or county. And, the city cannot build the big safety-simulation room the reason are size of building and money. Accordingly, it will be make a system and installation for different type of safety-simulation room for about calamity, disaster and different type of accident in Korea. It must be build the building of space that should be make a space of knowledge and information by many books and media, develop of education program from life-safety. 최근 발생한 대형참사의 근본원인은 $\ulcorner$안전수칙 미준수$\lrcorner$ $\ulcorner$관리자의 부주의$\lrcorner$, $\ulcorner$책임의식의 결여$\lrcorner$ 안전과 관련한 가치관의 부재에서 유발되었으며 이의 가장 큰 원인으로는 전반적인 인명 경시 풍조, 안전무시, 무사안일주의, 이기주의 등 여러 가지 복합 요인이 있으나, 안전 교육과 공간의 미비 등이 큰 문제점으로 지적되어 왔다. 이에 본 연구에서는 전 국민의 안전의식변화를 위하여 체험교육을 할 수 있는 공간을 제안 하고자 국내외의 체험관의 사례를 비교 분석하여 구체적 대안을 제시하였다. 결과, 지역실정과 재해유형에 맞는 적정규모의 안전체험관 건립의 당위성을 시 도가 단계적으로 추진해 나가고, 국고가 지원될 수 있도록 중앙정부에 적극 건의하여 정책에 반영될 수 있도록 함으로써, 적어도 시도별로 $1{\sim}2$개소 정도의 유사 안전체험관을 건립, 국민의 안전문화 의식을 제고시켜나가야 할 것이다. 그리고, 건물규모 면에서도 재정여건 등을 감안해 볼 때 외국의 안전체험관처럼 거대규모의 시설을 갖출 수는 없으나, 우리나라의 제반 실정에 맞는 재해, 재난, 사고유형별 다양한 체험습득을 위한 시설과 장치가 마련되어야 하며, 생활안전과 연계된 교육 프로그램의 개발과 적용, 풍부한 도서 및 영상자료를 통한 지식과 정보의 제공의 공간으로서 건립되어야 할 것으로 분석되었다.

하이라이트 모델을 이용한 능동소나 표적신호의 합성 및 인식

김태환,박정현,남종근,이수형,배건성,Kim, Tae-Hwan,Park, Jeong-Hyun,Nam, Jong-Geun,Lee, Su-Hyung,Bae, Keun-Sung 한국음향학회 2009 韓國音響學會誌 Vol.28 No.2

본 논문에서는 하이라이트 모델에 기반하여 능동소나의 표적신호를 합성하고, 합성된 신호를 이용하여 표적인식 실험을 수행하였다. 동일 표적이라도 표적의 자세각에 따라 다양한 형태의 파형을 갖는 신호가 합성되는데, 이에 대한 표적인식 결과를 알아보기 위해서 두 가지 방법으로 실험을 수행하였다. 하나는 고정된 여러 가지 자세각에 대한 표적신호에 대한 인식실험이고, 다른 하나는 임의의 자세각을 가지는 교신에 대만 인식 실험을 수행하였다. 인식실험을 위한 특징 인자로는 합성된 표적신호에 대해 시간영역에서 정합필터 및 포락선 검출을 통해 얻어지는 하이라이트 패턴을 사용하였으며, 패턴인식 기법으로는 다중클래스 SVM과 인공신경망을 사용하였다. In this paper, we synthesized active sonar target signals based on highlights model, and then carried out target classification using the synthesized signals. If the target aspect angle is changed, the different signals are synthesized. To know the result, two different experiments are done. First, The classification results with respect to each aspect angle are shown. Second, the results in two group in aspect angle are acquired. Time domain feature extraction is done using matched filter and envelope detection. It shows the pattern of each highlights. Artificial neural networks and multi-class SVM are used for classifying target signals.