최적화 방법에 의한 칼라 TV용 SAW IF 필터의 설계에 관한 연구

황금찬,박용서,최영호 연세대학교 산업기술연구소 1984 논문집 Vol.16 No.1

In this paper, SAW IF filter for NTSC Color TV is designed by optimization technique using nonlinear programming. To carry out optimization, Fletcher Reeves algorithm is adopted, and objective function and its gradient are calculated by FFT algorithm. The band-pass filter function is translated down to the baseband before optimization and 58 variables are chosen for optimization. The electrodes consist of one eighth and five eighths wavelength fingers. The finger length of the uniform IDT is designed as 1.33 times as the maximum finger length of the uniform IDT is designed as 1.33 times as the maximum finger length of the apodized IDT. In experiment, SAW IF filter is fabricated on 128 ˚Y cut X LiNbO₃ substrate to suppress the spurious signals. The experimental results have shown close consistancy with given specifications.

靈樞·寒熱病에 對한 硏究

蘇勇燮,鄭憲瑩,琴坰樹,朴炅 한국전통의학연구소 1998 한국전통의학지 Vol.8 No.2

The contents of Han Yul Byung(寒熱病) are explained on the basis of the so-called theory "Yin and Yang, the Five Evolutive Phases(음양오행)". The text of the Han Yul Byung(寒熱病) of the Young Chu(靈樞) was written in the Kap Ul Kyung(甲乙經) chapter 5, 7, 8, 10, 11 and 12. Also it was written in the Tae So(太素) volume 10 and 26. Also it was introduced in the Ryu Kyung(類經) volume 20, 21 and 22 by Jang Kae-Pin(張介賓) in the Myung(明) dynasty. Summarizing the contents of the Han Yul Byung in reference to the contents of successive generation note, the contents run as follows: Chapter 1 deals with the symptoms and treatment of diseases which accompany chills and fever(寒熱病). Chapter 2 deals with arthralgia with other joint systems(骨痺) and flaccid paralysis of Iimbs(體惰病). Chapter 3 deals with indications of five points around the Chen You Points(天牖穴). Chapter 4 deals with the treatment of toothache. Chapter 5 deals with the treatment of headache and eye pain. Chapter 6 deals with the acupuncture manipulation according to changes of season. Chapter 7 deals with the serious influence of carbuncle according to the region of body. Chapter 8 deals with the treatment of heat-syndrome. Chapter 9 deals with the side effect of acupuncture. It is too difficult to understand the Han Yul Byung(寒熱病), because it is written in old chinese. Consequence of above reason, the writer of this article has researched to find out the exact meaning of that.

現代建築空間에 表現된 場所性에 관한 硏究

우수령,李根宅,朴斗涌 嶺南大學校 環境問題硏究所 1991 環境硏究 Vol.10 No.2

The logic of Modern Architecture in the early part of the 20th century was begun to be criticized intensely, and functionalism, idealism, philosophy of university brought about the loss of identity. The attempt to retrieve the humanity by a methodology for solutions of given problems leads contemporary architecture to the pluralism. Consequently, contemporary architecture is to harmonize architecture with environment, and that is possible when we introduce the concept of place into architecture. The concept of place is not new, but rediscovery. Place is every-where human exists. For a long time a place has been understood in Genius Loci and a guardian deity. It is parted into natural and man-made place, and they are subdivided into romantic, classical, cosmic, complex landscape/architecture. Place is not abstract or geometrical but concrete. By definition, combination and concentration of space and control of the direction, place is where man orients, shelters and feels enclosure, intimacy, security and position. A method to express a sense of place based on a mental image of human who experiences a place is embodied through visualization, complementation and symbolization and when a sense of place is expressed. It is possible that man orients and is individualized.

現代建築의 콘텍스츄얼리즘的 傾向에 관한 硏究

李相華,李根宅,朴斗涌 嶺南大學校 環境問題硏究所 1991 環境硏究 Vol.10 No.2

The pluralism of the contemporary architecture is an environment to solve the problems presented the criticism of the Modern Movement and a mechanism to get a new standard of value with the transformation of the Modern Architecture's ethical concept into the problem of meaning. Contextualism, A methodology of architectural conditions, is represented in two ways such as the philosophical and the historical movement in architecture. It's methodology of building solution has been found from the urbanic field. The main problems in architecture are understood as urban structures in which cities have their own inner logics. The asthetic characteristics of the elements in the urban space are considered as physical structures. Contextualists concern the special building, architecture synthetically rather than analytically about modern cities and architecture, and develop the theme of modern cities broadly. European rationalists whose profects the ornamental properties are found from, have synthesized organic architecture with 1920s' rationalism and represented modern rationality.

한글대장경 웹 검색 시스템의 구현

구현우,선수림,박미화,이재수,이용규,이금석,홍영식,한보광 동국대학교 전자불전연구소 2007 전자불전 Vol.9 No.-

본 연구는 한글대장경 전산화 6차 사업으로 한글대장경 30책 분량을 전산화하여 검색 시스템을 구축하는데 목적이 있다. 고려대장경의 우리말 번역본인 한글대장경을 전산화하기 위해 개역된 고문헌을 입력하여 데이터베이스로 구축하고, 인터넷을 통해 그 내용을 검색할 수 있도록 한다. 한글대장경 고문헌은 확장한자, 누락문자, 특수문자 등을 포함하고 있어서, 본 연구에서는 효과적인 입력과 저장을 위해 유니코드(Unicode)를 사용하며, 유니코드로 표현하지 못하는 문자들은 이미지 폰트를 생성하여 표현한다. 데이터베이스를 구축하기 위해서 DBMS로는 MS-SQL 7.0을 사용하고, 운영체제로는 윈도우 2000 서버를, 웹 서버로는 IIS(Internet Information Server)를 사용하여 검색 시스템을 구축하였다. 또한 다양한 검색 방법을 제공하는 검색 엔진을 개발하여, 유니코드로 저장된 한글대장경 고문헌의 내용을 웹(http://ebtc.dongguk.ac.kr/)을 통해 보다 쉽게 전 세계에서 접근할 수 있도록 한다. This research aims for constructing retrieval system by digitizing thirty books quantities of Hangul Tripitaka in the 6th Hangul Tripitaka Digitization Project. For digitizing Hangul Tripitaka which is a Korean version of the Tripitaka Korean, we can input, store the retranslated archaic documents in database, and search their contents through the Internet. Because the archaic documents of Hangul Tripitaka includes extension characters of Chinese origin, missing characters and special characters, we input and store documents use Unicode and make image fonts that cannot be represented by Unicode. Also, for developing retrieval system in this research, we use MS-SQL 7.0 and IIS(Internet Information Server) on Windows 2000 Server. By developing search engine which provides variety of retrieval methods, people who concern the archaic documents in the whole world can access Hangul Tripitaka saved as Unicode using the Web.

Relationship between seed coat characteristics and water uptake, electrical conductivity after soaking in soybean genotypes

Keum Yong Park(朴綿龍),버터리(B.R. Buttery),친텐(C.S. Tan),Seok Dong Kim(金奭東) 한국육종학회 1996 한국육종학회지 Vol.28 No.1

The objective of the study was to assess the effect of different seed coat and seed size on the speed of water uptake and electrical conductivity due to cotyledon damage. Measurement of the time course of water uptake by four varieties of soybean revealed that varieties with black seed coat took up water more slowly than varieties with yellow seed coat. The varieties with black seed coat also showed the evidence of less imbibition injury as revealed by low electrical conductivity. The major factors contributing to slow water uptake in black seeds were fewer small, elongated seed coat pores, high density waxy material embedded in the seed coat(similar to hard seed) and thick palisade cell. It is likely that a closed micropyle was related with initial water uptake. On the other hand, although small seeds also have high density waxy material embedded in the seed coat, small seed varieties imbibed water faster than large. We thought that this result was due to the greater area of seed coat in touch with water, and seed coat ability in controlling the water potential of seed. But electrical conductivity after aging was higher in yellow seed than black seed regardless of seed size.

A New Soybean Cultivar for Sprout, "Sojin"

Keum Yong Park,Hong Tae Yun,Jung Kyung Moon,Yeong Ho Lee,Sun Lim Kim,Min Jung Seo,Young Hwan Ryu,Seong Sook Han,Jin Kyo Jung,Seong Ki Kim,Dong Ghan Kim,Ya Seong Lee,Seong Taeg Kim 한국육종학회 2005 한국육종학회지 Vol.37 No.2

Optimum Renewal Time of Nutrient Solution for Rose Substrate Culture in a Closed System

Keum Soon Park,Yong Hee Lee,Yong-Beom Lee 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Role of Preoperative Staging Ultrasound for Papillary Thyroid Microcarcinoma

Keum Hee Jung,Keum Hee Jung,Keum Hee Jung,Park Ho Yong,Lee Jeeyeon 대한외과초음파학회 2020 대한외과초음파학회지 Vol.7 No.2

Purpose: Papillary thyroid microcarcinoma (PTMC) has an excellent prognosis and can be managed with active surveillance or surgery, dependingon its location and numbers. The authors investigated the role of preoperative staging ultrasound for PTMC with statistical parameters. Methods: This study included 159 patients with PTMC who underwent thyroidectomy at Kyungpook National University Chilgok Hospital. The tumor size of PTMC, location, bilaterality and multifocality, anterior or posterior aspect of ETE, and metastasis of central/lateral neck lymph nodes were assessed by preoperative thyroid ultrasound and compared with the pathology results. The statistical parameters were calculated and compared. Results: The incidence of bilaterality of PTMC was similar in the ultrasound and pathology findings, and multifocalitywas identified in 27 cases (17.0%) and 35 cases (22.0%) in ultrasound and pathologic results, respectively. On the other hand, anterior and posterior ETE was identified only in 19 cases (11.9%) in the pathology findings,which was only approximately 50% of that in the preoperative ultrasound (36 cases, 22.6%). In the statistical parameters, most of the parameters were highest when evaluating metastatic lateral neck lymph node and lowest when evaluating metastatic central neck lymph nodes. Conclusion: Preoperative ultrasound for PTMC was useful to assess the size of PTMC, multifocality, anterior or posterior ETE, and metastatic lateral neck lymph nodes. On the other hand, as it is difficult to predict a central neck lymph node metastasis, it would be better for the operator to consider additional surgery based on the intraoperative findings.

가성 부신낭종 1예

박용검,박성준,박성일,장선택,박용욱 중앙대부설한국의과학연구소 1988 한국의과학 Vol.20 No.1