석회류제의 시용이 엽연형 황피발생 억제에 미치는 영향

이태수,김명수,홍순근,Lee, Tae-Su,Kim, Myeong-Su,Hong, Sun-Geun 고려인삼학회 1990 Journal of Ginseng Research Vol.14 No.1

Effect of liming material application on the prevention or cure of Mn toxicity symptoms including marginal leaf chlorosis in 3-year-old ginseng plants grown in acidic soils were investigated. It was found that the ratio of Fe to Mn was above about 0.5 and the ratio of Mn to Fe was below about 2.00 in 4-year old ginseng leaves when liming materials were applied in field experiments. It was apparent that the occurrence of marginal leaf chlorosis was decreasing affected by application of Ca, Mg and Fe. The appearance of marginal leaf chlorosis was decreased to about 78 percent in 4-year-old ginseng and to about 69 percent in 5-year-old ginseng, and then the fresh root weight was increased up to 66 percent in 4-year ginseng plants.

표고 원목재배술의 향상

이태수,고민규 ( Tai Soo Lee,Min Kyoo Ko ) 한국균학회 1996 버섯재배개발심포지움 Vol.- No.-

교수 채용에 있어서 국내박사 할당제의 의미

이태수,Lee, Tae-Su 한국대학교육협의회 2005 大學敎育 Vol.138 No.-

Selective Dehalogenative Homocoupling of Haloarylsulfonates by th Use of Palladium Catalyst

이태수,안정호,김진환,배진영,Lee, Tae Su,An, Jeong Ho,Kim, Jin Hwan,Bae, Jin Yeong Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.4

The palladium catalyzed dehalogenative homocoupling of haloarylsulfonates under reductive conditions has proceeded selectively depending on the type of the halogen. Thus, an iodo or a bromo leaving group of haloarylsulfonates was homocoupled to gi ve symmetrical biaryls in good yields with the sulfonate group intact, whereas a chloro leaving group gave no reaction under the conditions used. When the more reactive nickel catalyst was employed instead of the palladium catalyst in the reaction, both dehalogenative and desulfonative homocouplings of haloarylsulfonates occurred regardless of the type of the halogen used.

VLCC용선 시장의 변화와 대응

이태수,Lee, Tae-Su 대한석유협회 1995 석유와 에너지 Vol.1995 No.1

u-Healthcare를 위한 바이오 단말기의 개발 현황

이태수,홍주현,Lee, Tae-Soo,Hong, Joo-Hyun 대한의용생체공학회 2009 의공학회지 Vol.30 No.3

Biomedical mobile devices for ubiquitous healthcare consist of biomedical sensors and communication terminal. They have two types of configuration. One is the sensor-network type device using wired or wireless communication with intelligent sensors to acquire biomedical data. The other is the sensor embedded type device, where the data can be acquired directly by itself. There are many examples of sensor network type, such as, fall detection sensor, blood glucose sensor, and ECG sensors networked with commercial PDA phone and commercial phone terminal for ubiquitous healthcare. On the other hand, sensor embedded type mounts blood glucose sensor, accelerometer, and etc. on commercial phone. However, to enable true ubiquitous healthcare, motion sensing is essential, because users go around anywhere and their signals should be measured and monitored, when they are affected by the motion. Therefore, in this paper, two biomedical mobile devices with motion monitoring function were addressed. One is sensor-network type with motion monitoring function, which uses Zigbee communication to measure the ECG, PPG and acceleration. The other is sensor-embedded type with motion monitoring function, which also can measure the data and uses the built-in cellular phone network modem for remote connection. These devices are expected to be useful for ubiquitous healthcare in coming aged society in Korea.

음영분석에 의한 내시경 영상의 3차원 형체 추정에 관한 연구

이태수,차은종,윤세진,Lee, Tae-Su,Cha, Eun-Jong,Yun, Se-Jin 대한의용생체공학회 1995 의공학회지 Vol.16 No.4

위내시경 영상의 음영을 분석하여 내부 벽면의 3차원적인 형체를 추정하는 새로운 기법을 제안하였다. 이를 위해 우선 내시경의 기기적인 특성을 분석한 다음, 진단 대상이 되는 위벽면 자체의 특성으로 인해 내시경 영상의 특성을 분석하였다. 이를 사전정보로 하고, Horn의 변분법을 도입하여 반복적인 음영분석 알고리즘을 구현하였다. 알고리즘의 타당성 여부를 증명하기 위하여 위모형에서 획득한 $512{\times}512$ 영상 중에서 $256{\times}320$을 대상으로 해서, 시뮬레이션을 수행하였다. 이때 Lagraniginan multiplier의 값이 0.3일 경우 알고리즘의 수렴성 및 전체오차 특성이 가장 좋았으며, 가장 정확한 위벽면의 재구성이 이루어짐을 보였다. A new numerical method estimated three dimensional shape of the internal surface of the stomach by analyzing the shading data of endoscopic image. First analyzed was the inherent instrumentational characteristics of the endoscope system, followed by the analysis of the stomach surface properties, both of which affected the imaging properties. We employed these prior informations to implement the iterative algorithm of shading analysis based on Hom's variational approach. The present algorithm was validated by performing simulation on a $256{\times}320$ image data chosen from original $512{\times}512$ image of the stomach surface model. The best 3-dimensional estimation of the surface was achieved with the Lagrangian multiplier, of 0.3, when the algorithm best converged showing minimal estimation error.

농촌의 고령화 현실과 농촌복지

이태수,Lee, Tae-Su 전국농업기술자협회 2012 농업기술회보 Vol.49 No.6

무안구성 얕은 아래결막구석 환자에서 아래속눈썹밑 피부절개를 통한 결막구석재건술

이태수,황상준,오종현,Tae Soo Lee,Sang Jun Hwang,Jong Hyun Oh 대한안과학회 2007 대한안과학회지 Vol.48 No.5

Purpose: To evaluate the usefulness of a new technique for the subciliary approach to the surgical management of anophthalmic, shallow inferior fornices. Methods: Six patients with difficulty retaining an ocular prosthesis, due to anophthalmic, shallow inferior fornices with sufficient conjunctiva, underwent this operation from October 2003 to April 2005. Surgery consisted of the fixation of the conjunctival fornix to the periosteum immediately posterior to the inferior orbital rim through the subciliary approach. This study was prospective. Results: The mean age of the patients was 40.1±14.7 years (range, 21~62 years). Three of six patients were male, and three were female. The mean duration of surgical anophthalmos was 16.8±13.2 years (range, 0.6~40 years), and the mean follow-up period was 9.3±8.4 months (range, 3~25 months). All 6 patients who could not wear prostheses because of shallow fornices could wear ocular prostheses successfully after the operation. An ocular prosthesis could be fitted at a mean duration of 1.83±0.75 weeks (range, 1~3 weeks), postoperatively. Only one patient had mild entropion, but there were no conjunctival contractures or loss of fornices postoperatively. Conclusions: The authors believe that this new technique through the subciliary approach is simple and easy to perform and enables the patient to wear an ocular prosthesis earlier than does forniceal reconstruction through the transconjunctival approach. This technique is very useful in patients with anophthalmic, shallow inferior fornices who have sufficient conjunctiva but loose attachments of the fornix to the underlying tissue, causing shallow fornices.

실패한 코경유눈물주머니코안연결술에서 교정수술의 결과

이태수,신형호,황상준,백세현,Tae Soo Lee,Hyung Ho Shin,Sang Jun Hwang,Se Hyun Baek 대한안과학회 2007 대한안과학회지 Vol.48 No.2

Purpose: This large case study evaluated the success rate of revisional surgery and the causes of failed endonasal dacryocystorhinostomy (DCR) with long-term follow-ups. Methods: One hundred nine patients (114 eyes) who underwent revisional surgery for a failed endonasal DCR at the Department of Ophthalmology, Guro Hospital, Korea University between January 1995 and January 2005 were included in this retrospective study. We evaluated the causes of failed endonasal DCR and their success rates of revisional surgeries. Results: The causes of surgical failure were membranous obstruction (83 eyes), granuloma (22 eyes), synechia (11 eyes), common canalicular obstruction (11 eyes), functional block (7 eyes), and canalicular obstruction (1 eye). The revisional surgeries were silicone tube intubation after granuloma removal, synechiolysis and membranectomy using Nd:YAG laser and trephination of canalicular obstruction, and endonasal conjunctivodacryocystorhinostomy (CDCR) for the parts of functional block and the canalicular obstruction. The overall success rates of the revisional surgeries were 83.3% (95/114 eyes). The mean follow-ups period was 18.97 months (range, 9~113 months). Conclusions: This is the first large case study in Korea on revisional surgery with long-term follow-ups, as far as we know. The overall success rates of endonasal DCR after receiving simple revisional surgery were comparable to those of the standard external DCR.