• Proceedings of the KSRS Conference
• /
• 2005.10a
• /
• pp.98-100
• /
• 2005

This paper describes link analysis on the processed data, HRIT (High Rate Information Transmission) and LRIT (Low Rate Information Transmission), for the preliminary design of interface between COMS (Communication, Ocean and Meteorological Satellite) and ground station. At the MODAC (MeteorologicaVOcean Data Application Center), the processed data are transmitted to user station via COMS with normalization and calibration by pre-processing of MI (Meteorological Imager) data. Due to consider satellite as radio relay, overall analysis containing uplink and downlink is needed. Specific link parameters can be obtained with using the outcomes of SRR (System Requirement Review) which was held on 13-14 June 2005, in Toulouse. From the relation between overall link margin and output power of HPA (High Power Amplifier) of MODAC, it is shown that even though the minimum power related with COMS receiving power range is transmitted at MODAC, the obtained link margin of HRIT could be above 3 dB at user station which antenna elevation angle is 10 degree.

• The Plant Pathology Journal
• /
• v.24 no.4
• /
• pp.447-452
• /
• 2008

Four hundred and sixty six isolates of B. cinerea were obtained from infected leaves, stems and fruits of paprika grown in greenhouses or plastic film houses in Gangwon province, Korea, between August and November in 2006 and 2007. These isolates were classified into five representative phenotypes of resistant (R) and sensitive (S) reactions as SSR, SRR, RSS, RRS and RSR according to the responses of isolates against benzimidazole, dicarboximide and N-phenyl-carbamate fungicide in order. The percentage of five phenotypes were 51.3, 2.4, 35.6, 8.1 and 2.6%, respectively. The SSR phenotype (51.3%) was the most common. Among the nineteen fungicide products evaluated to compare their efficacy against gray mold pathogen on the paprika fruit inoculated with fungal mycelia, the mixture of diethofencarb and carbendazim was the most effective followed by iprodione, boscalid, the mixture of iprodione and thiophanate-methyl, fludioxonil, polyoxin-B, fluazinam, the mixture of tebuconazole and tolyfluanid and procymidone; while in the assay methods inoculated with fungal spores, the mixture of tebuconazole and tolyfluanid was the most effective in controlling gray mold followed by boscalid, fludioxonil, the mixture of diethofencarb and carbendazim and the mixture of pyrimethanil and chlorothalonil.

• Journal of Oral Medicine and Pain
• /
• v.12 no.1
• /
• pp.63-74
• /
• 1987

The life changes of TMJ patients were evaluated through the Social Readjustment Rating Scale (SRRS) questionnaire. 61 female TMJ patients and 80 dental new female outpatients were studied at the TMJ Clinics, Department of Oral Diagnosis, PNUH from February to September 1987. The obtained results were as follows; 1. The life change unit (LCU) totals and number of life events in the TMJ patients were significantly higher than those in the control subjects, especially during the 1-6 months before presentation for the hospital. 2. There was no significant difference in the number of the high-scored (over 150 LCU totals) between the TMJ patients and the control subjects. 3. There was a significant difference in LCU totals and life events between the TMJ patients and the control subjects by age, despite no difference in LCU totals and life events between the young and the advanced subgroups. 4. The LCU totals and the number of life events in the TMJ patients over 13-year-school age were significantly higher than those in the control subjects over 13-year-school age and the TMJ patients under 12-year-school age. 5. The married subgroup in the TMJ patients showed no significant difference in LCU totals and life events as compared with the unmarried one. 6. Categorizing life events into 6 items (marital life, health, occupation, family, finances and social), the TMJ patients had the higher frequencies in marital life and occupation than the control.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.9 no.4
• /
• pp.22-31
• /
• 2010

In this paper, a new split ring resonator using left-handed meta-material adapted in a bandpass filter with 2-stages is suggested. In this proposed bandpass filter, the size of the novel resonator can be easily controlled. Also, the bandwidth can be adjusted with the position of the tapped-line. The proposed resonator and filter has the center frequency of 10 GHz for I-band in military-satellite communication system with the Qe value of 184. The experimental results of the filter show that the insertion and return losses are 1.43 dB and 16.8 dB with bandwidth of 10 %, respectively.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.25 no.3
• /
• pp.304-310
• /
• 2014

This paper presents the analysis of the coupling coefficient(k), Q value of the resonator, and the optimum loaded resistance at Rx for the magnetically coupled wireless power transmission using two loops(resonators). In addition, the metamaterial, conductor, and the relay methods have been used in order to improve the limitation problem of transmission efficiency by using the figure of merit. We have achieved the increase of transmission efficiency about 11~60 % using the proposed methods by analyzing and comparing the results based on EM simulations.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.11b
• /
• pp.1165-1168
• /
• 2003

모바일 컴퓨팅 환경에서 이동성은 등록을 통해 이루어지고 있으며, 이음새 없는(seamless) 이동성을 제공하고자 많은 연구들이 진행되어 있으며, 그 중 방문하고자 하는 네트워크(Foreign Network)에 등록하는 시점을 언제로 하느냐에 따라 크게 다음의 2 가지 방법으로 대별된다. SIP-Registration은 핸드오프가 발생한 이후 등록(AAAF)을 함으로써 통화하는 중에 끊김(disruption)이나 지연(delay)이 발생한다. 이를 개선한 SIP-Shadow-Registration 방법은 핸드오프가 발생하기 이전에 이웃한 모든 노드들$(AAAF_n)$에게 모바일 노드(MN)의 관련 정보를 사전등록(Shadow Registration)하여 핸드오프 이후에 발생하는 끊김이나 지연을 방지하였다. 그러나 SIP-Shadow-Registration은 실제 사용하지 않는 n-2 개의 MN와 관련된 백본 네트워크에 불필요한 데이터 전달 및 관리라는 문제를 야기시킨다. 본 논문은 이러한 문제점들을 개선하고자 사전등록영역(SRR: Shadow Registration Region)을 구성하고 이의 알고리즘을 제안한다. 결과적으로 SIP 기반의 이동성이 필요할 때, 최소한의 사전등록영역을 통해 끊김이나 지연도 방지하고 추가적인 데이터 관리 문제도 해결할 수 있는 효과적인 방법이다.

• Korean Journal Plant Pathology
• /
• v.14 no.6
• /
• pp.693-699
• /
• 1998

Three three hundred and ninety seven isolates of Botrytis cinerea were isolated from infected plants of strawberry, tomato and cucumber from several areas in Korea during 1994∼1996 and the resistance of these isolates against some fungicides were examined. The isolation frequency of phenotypes resistant to carbendazim, procymidone, and diethofencarb were found to be 69.9 43.7, and 31.8%, respectively. The isolates were divided into six phenotypic groups; SSR, SRR, RSS, RRS, RSR and RRR, representing sensitive (S) or resistant (R) to benzimidazole, dicarboximide, and N-phenylcarbamate fungicides in order. The percentage of six phenotypes were 28.2, 2.0, 27.2, 41.0, 0.9 and 0.8%, respectively. On the basis of the mycelial growth inhibition (%) B. cinerea isolates were divided into three classes (class 1; 0∼50%, class 2; 51-99%, class 3; 100% inhibition) on carbendazim and three classes (class 1; 0∼75%, class 2; 76∼99%, class 3; 100% inhibition) on procymidone and the mixture of carbendazim+diethofencarb, respectively. Changes in sensitivity levles to carbendazim and carbendazim+diethofencarb were affected by introduction and increasing ratio of the use of diethofencarb.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.11a
• /
• pp.1326-1329
• /
• 2012

전사체(transcript)는 유전자로부터 전사된 DNA 시퀀스 코드를 말한다. 전사체(transcript)의 발현된 형태에 따라 생성되는 단백질의 형태 역시 달라지므로 전사체 모델의 형태는 중요한 의미를 가지며 특정 위치의 전사체가 정상과 다르게 모델이 변할 경우 심각한 경우에는 유전자 질병에 노출될 수 있다. 현재 실험체에 대한 전사체 모형은 SpliceGrapher, Cufflinks와 같은 상용화된 도구들을 사용하여 얻을 수 있다. 하지만 이런 도구 간의 결과 값 및 어노테이션 정보와 결과 값 간의 유사도 비교를 위한 방법론은 현재 알려진 바 없다. 대신 전사체 비교를 위해 모형 간의 차이를 눈으로 하나씩 비교하거나 전사체 위치를 이용한 산수 값을 이용한다. 본 논문에서는 전사체 모형 간의 유사도를 비교하기 위한 방법론을 제시하고 Homo sapiens grch37 어노테이션 파일과 SRR387514 실험 데이터 간의 유사도를 제시한 방법론을 이용하여 측정한 결과 값을 분석하였다.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.21 no.1
• /
• pp.34-39
• /
• 2015

KCG, responsible Agency of maritime SAR operation has been known to address the marine casualties well, however, it was criticized because KCG failed to take prompt and effective response to the recent Ferry disaster at the very early stage. In this regards, the authors analyze the characteristics of marine incident with historical data, and also review and examine the national SAR system focusing on SAR coordination and human resources to make recommendation and suggestion in order to minimize the loss of lives to future marine incidents. As a result, KCG shall augment its capabilities, inter alia, fast libeboats and rescue helicopters for prompt response to marine incidents at the coastal waters, and KCG shall re-adjust the establishment of Rescue Coordination Center to improve operational problems of current system in accordance with IMO guidance, KCG is required to introduce mandatory training, qualification and certificate system to enhance the professionalism of SAR personnel.

• Journal of Applied Biological Chemistry
• /
• v.44 no.3
• /
• pp.147-153
• /
• 2001

Methanol extracts from 51 fruits were tested for their fungicidal activities against six phytopathogenic fungi in a greenhouse. The efficacy varied with both the plant pathogen and fruit species used. At 10 and 5 mg/pot, methanol extracts of Poncirus trifoliata peel and seed gave over 80% control values against Pyricularia grisea, and strong fungicidal activities against Rhizoctonia solani were showed from the extracts of Citrus paradisi peel and Punica granatum leaf. In a test with Botrytis cinerea at 5 mg/pot, the extracts of C. sinensis seed and D. kaki leaf produced potent fungicidal activities, and the extracts of C. crenata peel and leaf, Ch. sinensis seed, P. trifoliata peel, and Z. jujuba leaf had strong fungicidal activities. At 5 mg/pot, strong fungicidal activities were produced in the extracts of P. trifoliata peel and seed against Phytophthora infestans and in the extracts of P. ussriensis var. macrostipes fruit and seed, C. crenata peel, C. crenata leaf, C. paradisi peel, P. trifoliata peel, P. granatum peel, and Z. jujuba leaf against Puccinia recondita. In a test with E. graminis, potent activities at 10 mg/pot were produced from the extracts of Ch. sinensis seed, C. sinensis seed, P. trifoliata leaf, P. ussriensis var. macrostipes fruit and seed, and Vitis vinifera seed. In the control effect of seven extracts against B. cinerea strains resistant to carbendazim, procymidone, and diethofencarb, extracts of C. crenata peel and leaf, Ch. sinensis seed, and P. trifoliata peel were highly effective against all strains of B. cinerea. Furthermore, potent fungicidal activities were produced from the extracts of C. sinensis seed and D. kaki leaf against the SSR, SRR, and RRS, and Z. jujuba leaf against the SSR and RRS strains. As a naturally occurring fungicide, these fruit-derived materials could be useful as new fungicidal products against phytopathogenic fungi.