화강암 풍화토의 동상 발현 및 융해에 따른 변형 거동에 관한 연구

류능환 ( Ryu Neung Hwan ),최중대 ( Choi Jung Dae ),류영선 ( Ryu Young Sun ) 한국농공학회 1995 韓國農工學會誌 : 전원과 자원 Vol.37 No.3

Natural ground is a composite consisted of the three phases of water, air and soil paircles. Among the three components, water as a material is well understood but soil particles are not in foundation engineering. Especially, weathered granite soil generally shows a large volumetric expansion when they freeze. And, the stability and durability of the soil have shown decreased with repetitive freezing and thawing processes. These unique charcteristics may cause various construction and management problems if the soil is used as a construction material and foundation layers. This project was initiated to investigate the soil's physical and engineering characteristics resulting from freezing and freezing-thawing processes. Research results may be used as a basic data in solving various problems related to the soil's unique characteristics. The following conclusions were obtained: The degree of decomposition of weathered granite soil in Kangwon-do was very different between the West and East sides of the divide of the Dae-Kwan Ryung. Soil particles distributed wide from very coarse to fine particles. Consistency could be predicted with a function of P₂₀₀ as LL=0.8 P₂₀₀+20. Permeability ranged from 10^-2 to 10^-4cm/sec, moisture content from 15 to 20% and maximum dry density from 1.55 to 1.73g /cm³ By compaction, soil particles easily crushed, D₅₀ of soil particles decreased and specific surface significantly increased. Shear characteristics varied wide depending on the disturbance of soil. Strain characteristics influenced the soil's dynamic behviour. Elastic failure mode was observed if strain was less than 10^-4/s and plastic failure mode was observed if strain was more than 10^-2/s. The elastic wave velocity in the soil rapidly increased if dry density became larger than 1.5g /cm³ and these values were V_p=250, V_g=150, respectively. Frost heave ratio was the highest around 0℃ and the maximum frost heave pressure was observed when deformation ratio was less than 10% which was the stability state of soil freezing. The state had no relation with frost depth. Over freezing process was observed when drainage or suction freezing process was undergone. Drainage freezing process was observed if freezing velocity was high under confined pressure and suction frost process was occurred if the velocity was low under the same confined process.

거제도(경상남도, 거제시)의 거미상

김주필(Joo Pil Kim),김대희(Dae Hee Kim),지승환(Seung Hwan Ji),지성현(Sung Hyun Ji) 한국거미연구소 2017 한국거미 Vol.33 No.2

2017년 7월 4일부터 6일까지 경상남도 거제시 거제도 일대를 김주필, 김대희, 지승환, 지성현, 최라미, 이영경 등 한국거미연구소 회원들이 주야로 채집한 결과, 총 23과 56속 75종이 조사 연구되어 이에 발표하는 바이다. 채집한 표본은 주필거미박물관에 보관하였다. From July 4 to 6 in 2017. Joo-Pil Kim, Dae-Hee Kim, Seung-Hwan Ji, Sung-Hyun Ji, Ra-Mi Choi, Yeong-Gyeong Lee, the members of The Arachnological Institute of Korea investigated the spiders in the whole area of Geoje city, Geoje-do, Gyeongsangnam-do and report 23 Family 56 Genus 75 Species of spiders. The collected spiders are placed (stored) in the Joo-Pil Spider museum.

소라의 식품학적 특성

송대진,김효선,하진환 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.2

Characteristics of turban shell, Batillus cornutus, as a food component was investigated to establish the data to use more effectively. Proline, glutamic acid, taurine and glycine were abundant in raw turban shell and those were consisted of 55.1% of the total amino acids. IMP and inosine were dominant in raw while those were decreased significantly during canning. Succinic acid, pyroglutamic acid and malic acid were abundant in raw and canned ingredients while the contents were decreased notably during canning. The polyenic acid such as arachidonic acid and EPA were abundant and followed by saturates and monoenes, in that order. Na. Mg. K and Ca were predominant in raw turban shell while those contents were decreased considerably during canning.

무증상 당뇨환자의 T 반사 변화

안규환,조용진,김상화,사은희,임용빈,김대성,정대수,박규현 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

WIPI 기반 모바일 3D 게임엔진의 설계와 구현

형대진,김승구,조현준,박경환 동아대학교 정보기술연구소 2006 情報技術硏究所論文誌 Vol.14 No.1

In this paper, we introduce the method for developing the mobile 3D game engine based on the WIPI platform which has been proposed as the mobile standard platform. Our game engine is designed so that it supports OpenGL-ES and JSR-184 that are mobile 3D graphic APIs. Our game engine has a mobile emulator operated on PC and SDK to support mobile programming in PC environments. Mobile 3D game developers can use the APIs at various levels. Also, the game engine is developed in modular in order to support various game genres.

다중 네트워크 아키텍처 지원을 위한 객체지향 게임 네트워크 엔진의 설계 및 구현

형대진,이재윤,박경환 동아대학교 정보기술연구소 2007 情報技術硏究所論文誌 Vol.14 No.2

Online game that based on network communication, use various type of communication and network architecture for each character and genre of game. In this paper, we investigated and analyzed communication types used in online games and, based on the results, introduced a method of developing an object-oriented network engine supporting various types of network architecture. The developed network engine not only supports the development of games using various types of communication applicable to online games but also is easily expandable because of its hierarchical structure based on the object-oriented concept. Moreover, since it can support dead reckoning make up for network latency problem, we use very usefully for development of game.

후이개에 발생한 거대 표피양낭종 1예

강태형,이환호 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.2

Epidermoid cyst is slowly growing, round and firm tumor. Generally it grows up to 0.5 to 5 cm in diameter. Epidermoid cyst is rarely found in postauricular region. The cyst is intradermal or subcutaneous sac-like structure that is surrounded by keratinized epithelium with no dermal annexe in its covering epithelium. In surgical treatment, the cyst wall must be completely removed because residual portions of it can result in cyst recurrence. We report a case in which a 41-year-old man developed an epidermoid cyst presenting as a large postauricular swelling with a review of literature.

정신분열병환자의 회화에 나타난 예후적 특징에 관한 일 연구

고대관,김재환 大韓神經精神醫學會 1990 신경정신의학 Vol.29 No.4

This study was attempted to examine the validity of the characteristics which had been suggested as the prognostic signs in the human figure drawings of the schizophrenics. Subjects were 63 schizophrenics and 44 non-psychotic patients. As a result, there were significant differences between two groups in reference to following parameters ; media(p<.05), global expressiveness(p<.01), drawn body area(p<.05), number of color used(p<.01), Arieti effects-spatial alteration(p<.05), infantilization(p<.058), detail(p<.01), and emphasized body area(p<.05). It has been thought that seven of these pronostic signs could provided the basic data for the future study of prognostic signs in drawings of the schizophrenics.

좌골부 욕창의 치료

박대환,한동길,안기영 대구효성가톨릭대학교 1996 연구논문집 Vol.53 No.2

Ischial ulcers are the most common of all pressure ulcers, probably because they directly overlie the points of maximum pressure on the sitting surface. Furthermore, they are among the most common secondary ulcers for the same reason. Also, ischial ulcers are frequently complicated by abnormal lesional bursae, by extension, fistula toward the perineum, urethra, or peritoneal cavity. Urethrograms or panendoscopy are necessary prior to surgery and must remove all irreversibly damaged tissue. Consequently any surgical plan for ischial ulcers must take into account the effects of bone removal on weight bearing and positioning, and must provide stable, durable soft tissue cover intelligently designed to be reliable in the event of a recurrence. From April 1990 to April 1993, we had reconstructed 15 cases of ischial ulcers. In 13 cases of primary ulcers, inferior gluteil thigh flip (7 case), transpositin flap(2 case), ischiectomy and direct closure (3 cases), gluteus maximus myocutaneous island flap(1 case) was done. In 2 cases of secondary ulcers, V-Y advancement flap of biceps femoris and semitendinosus and gracillis muscle flap were done each other.

탄성지반상의 변단면격자구조물 해석

하대환,정성태,남문희 慶尙大學校生産技術硏究所 1994 生産技術硏究所論文集 Vol.10 No.-

To analyze grid structures on elastic foundation there are several methods, finite difference method, finnite element method, so on. Most of finite element method technique applied structures on an elastic foundation consideres the reaction of the elastic foundation as the vertical reaction at each nodal point, thus that would not includes the reaction of the rotation of the structure on an elastic foundation. Here, the foundation stiffness matrix derived from vertural work theory in introduced to apply structures on an elastic foundation, specialy with linearly varying element.