http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
갯개미자리(Spergularia marina Griseb)의 염농도에 따른 발아 및 생장 반응
정재혁,김선,이장희,최원영,이경보,조광민 韓國作物學會 2014 한국작물학회지 Vol.59 No.2
본 연구는 한국 서남해안지역에 분포하고 있는 갯개미자리의 염농도에 따른 발아와 생장반응을 구명하고자 수행하였으며 결과는 아래와 같다. 1.갯개미자리의 염농도 및 온도별 발아율을 조사한 결과, NaCl 0~1.0%에서는 15℃에서 발아율이 90% 이상으로 높았고, NaCl 2.0%에서는 모든 온도에서 발아가 되지 않았다. NaCl 0%에서 발아율은 10℃에서 20℃까지는 90% 이상을 보였지만, 25℃에서는 51.7%로 급격히 낮아졌다. 또한 15℃에서 NaCl 농도별 발아율이 80% 이상 되는 시기는 NaCl 0%와 0.3%에서는 5일, NaCl 0.5%에서는 7일, NaCl 1%에서는 9일이었고, NaCl 2%에서는 발아하지 못하였다.2.염농도별로 8주 동안 양액재배한 결과, 염농도가 NaCl 0, 50, 100, 200, 300, 400 mM에서는 NaCl 50 mM 처리구가 초장 12.5 cm, 건물중 0.73 g로 생장이 가장 좋았다. 또한 해수 0, 12.5, 25, 50, 100%에서는 해수 12.5% 처리구가 초장 20.9 cm, 건물중 0.72 g으로 생장이 가장 좋았으며, 이들 염농도는 모두 NaCl 0.3% 수준이었다.3.염농도에 따른 무기성분 함량은 NaCl 농도가 높을수록 Na+ 함량은 높아졌지만, K+과 Ca+, Mg+은 낮아지는 경향을 보였다. 특히 Na+ 함량과 K+ 함량이 대조적으로 변화하였으며, 이들은 NaCl 50 mM에서 함량이 급격히 변화한 다음 NaCl 400 mM까지 완만한 함량 변화를 보였다. 4.이상의 결과로 볼 때, 갯개미자리는 안정적인 발아를 위해 NaCl 1.0% 이하에서 15℃ 유지가 필요하고 재배에서는 NaCl 0.3% 수준이 적정 염농도로 생각 된다. This study was conducted to investigate the germination and growth response by Salinities of Spergularia marina Griseb grown in the western coastal region in South Korea. The germination was investigated for 10 days at temperature 10℃, 15℃, 20℃, 25℃ in order to examine the germination of Spergularia marina Griseb by NaCl concentration 0.0, 0.3, 0.5, 1.0, 2.0%. The germination of NaCl concentration 0.0~1.0% was 90% over at 15℃ treatment, but the germination of NaCl concentration 2.0% was 0% at all temperature treatments. To identify the growth response of Spergularia marina Griseb according to the salinity, Spergularia marina Griseb was cultivated for 8 weeks in Hoagland culture medium and sea water. In nutrient solution culture, growth was best in NaCl 50mM among 0∼400 mM concentrations and in 0, 12.5, 25, 50, 100% of sea water, growth was best in 12.5% (dilution ratio with fresh water) treatment. Spergularia marina Griseb’s inorganic component contents according to salinity showed that Na+ content increased, but contents of K+, Ca+, Mg+ decreased. As a result, appropriate condition for Spergularia marina Griseb’s germination is considered to be maintained at 15℃ and in less than NaCl 1.0% of salinity. When nutrient solution culture, NaCl 0.3% of treatment level is considered to be the optimum salinity.
임베디드 데이터베이스 시스템을 위한 블록 단위 스키핑 기법
정재혁,박형민,홍석진,심규석,Chong, Jae-Hyok,Park, Hyoung-Min,Hong, Seok-Jin,Shim, Kyu-Seok 한국정보처리학회 2009 정보처리학회논문지D Vol.16 No.6
일반적으로 데이터베이스 시스템에서의 질의 수행은 대부분의 경우 빠른 응답시간과 더 적은 메모리 사용량을 장점으로 가지는 파이프라이닝 기법으로 이루어진다. 이 때, 질의 수행 계획(QEP)의 각각의 연산 노드들은 Open(), Next(), Close() 함수들을 지원하는 iterator의 인터페이스를 가진다. 그런데, 플래시 메모리 기반의 휴대용 기기들을 위한 임베디드 데이터베이스 시스템에서는 iterator의 Next() 함수뿐만 아니라, 현재 레코드의 이전 레코드를 리턴해주는 Previous()와 같은 함수를 필요로 하는 경우가 많다. 이는 임베디드 환경의 경우 각각의 프로그램이 사용할 수 있는 메모리의 양이 제한적이므로, 사용자가 이전 레코드를 요청하는 경우, 결과 레코드 커서가 현재 레코드를 기준으로 이전 레코드를 다시 가져와야 하기 때문이다. 본 논문에서는 이러한 임베디드 데이터베이스 시스템의 질의 수행 시 각각의 연산 노드들이 Next() 함수뿐만 아니라 Previous() 함수를 블록 단위로 지원할 수 있도록 새롭게 설계 구현하는 과정에서 발생하는 방향 전환 문제를 소개하고 이를 해결하기 위한 블록 단위 스키핑 기법을 제안한다. Today, most of all the query processors in the world generally use the 'Pipelining' method to acquire fast response time (first record latency) and less memory usage. Each of the operator nodes in the Query Execution Plan (QEP) provides Open(), Next(), and Close() functions for their interface to facilitate the iterator mechanism. However, the embedded database systems for the mobile devices, based on the FLASH memory, usually require a function like Previous(), which returns the previous records from current position. It is because that, in the embedded environment, the mobile devices cannot fully provide it main memory to store all the query results. So, whenever needed the previously read records the user (program) should re-fetch the previous records using the Previous() function: the BACKWARD data fetch. In this paper, I introduce the 'Direction Switching Problem' caused by the Previous() function and suggest 'Block-wise Skipping' method to fully utilize the benefits of the block-based data transfer mechanism, which is widely accepted by most of the today's relational database management systems.
鄭在赫 慶熙大學校 東西醫學硏究所 1986 國際東西醫學硏究論文集 Vol.1986 No.-
The Scientific Foundation of Cooperation on East-West Medicines Ⅰ) The foundation of scientific theories of Oriental medicine : The philosophy of oriental medicine is a comprehensive, scientific theory. Contrary to the limits noted in experiments of modern sciences, philosophy does not restrict itself because of its allout view. Ⅱ) The philosophical contents of Oriental medicine : Oriental medicine, in contrast to modern medical science, founds its theory of medicine upon philosophy. This philosophy has for its authority the classics of the orient, among the most important of which include the Whang Ti Nei Ching, the I Ching (or the Book of Change), and the Chung Yung(the Doctrine of the Mean). Ⅲ) The Ethics of oriental Medicine : The Yin-Yang Theory which account for both the philosophy and science of Oriental medicine also deals with its ethics which are recorded in the I Ching and Chung Yung. It is an important fact that Oriental medicine included the subject of ethics, because the same degree of importance is placed upon the role of ethics in medicine as is on scientific knowledge or technique. Ⅳ) The clinical significances of Oriental Medicine : First, we will look into the character of preventive medicicine in Oriental medicine. Secondly, we come to the psychosomatic side of Oriental medicine. Thirdly, the pharmaceutics of Oriental medicine. The pharmaceutical therapy of Oriental medicine consists in medicinal decoctions, pills, and powder or raw medicine and so forth. Fourth is the effects of physical therapy. Acupuncture, moxibustion and many other physical therapies are mentioned in the Nei Ching, the source of the original text of Oriental medicine. Finally, its value as an informative medicine. Because Oriental medicine is empirical and built upon knowledge collected during the passing of time, valuable information can be found in there.
무월경 환자의 DITI와 HRV, 체성분 분석을 통한 특성 연구
정재혁,이진무,이창훈,조정훈,장준복,이경섭,Jeong, Jae-Hyuk,Lee, Jin-Moo,Lee, Chang-Hoon,Cho, Jung-Hoon,Jang, Jun-Bock,Lee, Kyung-Sub 대한한방체열의학회 2009 대한한방체열의학회지 Vol.7 No.1
Purpose : The purpose of this study is investigate the characters of DITI, HRV and Body composition analysis in Amenorrhea. Methods : We studied 47 patients visiting OO hospital from 1st October 2007 to 19st September 2009. The subjects were categorized in two groups, amenorrhea group(26) and normal group(21). We studied the difference of DITI, HRV and Body composition analysis between two groups by Mann-whitney test using SPSS for windows(version 12.0). Results : there is not statistically significant difference of DITI, HRV and BMI between amenorrhea group and normal group. But there is statistically significant difference of percent body fat and waist-hip ratio between amenorrhea group and normal group. Conclusion : Percent body fat and Waist-Hip ratio of amenorrhea groups is lower than normal groups. Percent body fat and Waist-Hip ratio can be diagnosis index.
RGB 비디오 데이터를 이용한 Slowfast 모델 기반 이상 행동 인식 최적화
정재혁,김민석 한국멀티미디어학회 2022 멀티미디어학회논문지 Vol.25 No.8
HAR(Human Action Recognition) such as anomaly and object detection has become a trend in research field(s) that focus on utilizing Artificial Intelligence (AI) methods to analyze patterns of human action in crime-ridden area(s), media services, and industrial facilities. Especially, in real-time system(s) using video streaming data, HAR has become a more important AI-based research field in application development and many different research fields using HAR have currently been developed and improved. In this paper, we propose and analyze a deep-learning-based HAR that provides more efficient scheme(s) using an intelligent AI models, such system can be applied to media services using RGB video streaming data usage without feature extraction pre-processing. For the method, we adopt Slowfast based on the Deep Neural Network(DNN) model under an open dataset(HMDB-51 or UCF- 101) for improvement in prediction accuracy.
정재혁,홍길표,김유리,하재은,이규섭 대한폐경학회 2016 대한폐경학회지 Vol.22 No.2
Objectives: Magnetic resonance imaging (MRI)-guided high intensity focused ultrasound surgery (MRgFUS) is a newly emerging non-invasive technique for the treatment of uterine fibroids. The purpose of this study is to review the clinical impact of MRgFUS. Methods: This study examined 157 patients. The high intensity focused ultrasound (HIFU) utilized in this study was Philips Achieva 1.5 Tesla MR (Philips Healthcare, Best, the Netherlands) and Sonalleve HIFU system. The patients were followed in post-operative Month 1, Month 3, and Month 6 to investigate any change. Then, these were further classified according to the use of uterine stimulant (oxytocin) in parallel, Funaki Type of uterine fibroid, HIFU intensity, and non-perfused volume (NPV) ratio.Results: When the uterine stimulant was utilized, the HIFU intensity was measured at significantly lower levels, compared with the group not using uterine stimulant, and treatment duration was significantly. The NPV ratio was found significantly higher in the group using uterine stimulant. Concerning the correlation between Funaki Type of uterine fibroid and average sonication power, it was found that the closer to Type I, the lower the sonication power, the shorter the treatment duration, and the higher the NPV ratio significantly. Conclusions: In this study, it was found that the lower the Funaki Types of uterine fibroids, and the higher the NPV ratio immediately after the operation, the larger the uterine fibroid volume decrease and SSS change were. Also, if uterine stimulant was used in parallel in treatment, treatment duration and HIFU intensity could become shorter and lower. (J Menopausal Med 2016;22:94-107)