• 복식
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• 제63권7호
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• pp.94-108
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• 2013

This study is about the armors that high navy officers of Joseon wore during the period of Japanese invasion of Korea(1592~1598). The kinds of armors that these officers wore during this period are Sueungap, cheolgap, pigap, jigap and myeongap. Sueungap, cheolgap, pigap are all described in literatures, which were released in that period and the early Joseon period. According to publications that were released during that period, Yuyeopgap was a type of an iron armor. Armors that are recorded in only literatures published in the early Joseon period include swaejagap, gyeongbeongap, dujeonggap, hwangdongdujeonggap and dudumigap. Myeongap is found only in publications that were made in the above war time. The styles of armors are largely classified into chalgap and dujeonggap. The chalgap-styled armors used gapchal as their main component. Dujeonggap-styled armors used fabrics and dujeong. The names and the manufacturing methods of the gapchal did not changed since its creation in the early Joseon period until the above wartime. But, their shapes were considerably changed between the two times. This is clearly shown in armors that were found in the moat of the Dongrae-eup fortress. Dujeonggap-styled armors that were used during the period of the Japan-Korea war were a successor to those of dujeonggap-styled armors of the early Joseon period. But the former armors were different from the latter in that they had no gapchal inside. They are well represented by Jeong Chung Sin's armor.

• 한국전산구조공학회논문집
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• 제29권5호
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• pp.377-388
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• 2016

이 연구는 기초의 묻힘이 면진 원전구조물의 응답에 미치는 효과를 지표기초와 비교하여 평가하였다. 면진장치의 비선형성을 고려한 비선형 SSI 해석은 진동수영역해석과 시간영역해석의 복합법인 경계반력법(BRM)을 이용하여 수행하였다. BRM 해석모델은 BRM을 이용한 등가선형 SSI 해석결과를 재래의 주파수영역 SSI 해석결과와 비교함으로 검증하였다. 마지막으로 비선형 SSI해석에 의한 묻힌기초 모델의 면진장치의 변위 및 구조물 응답을 지표기초의 해석결과와 비교하였다. 비교결과, 면진장치의 변위응답은 묻힌기초효과를 고려할 경우 감소할 수 있음을 알 수 있었다.

• 한국공간정보시스템학회 논문지
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• 제2권1호
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• pp.5-16
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• 2000

OGC(Open GIS Consortium)의 'OpenGIS Simple Feature Specification for CORBA'는 CORBA 분산 컴퓨팅 환경하에서 분산되고 상호 이질적인 GIS 자원의 공유와 상호운용을 위한 표준 인터페이스를 정의하는 OpenGIS CORBA 구현사양이다. 이를 지원하는 OpenGIS 서버는 구현사양에 정의된 모즌 표준 인터페이스들에 대한 정확한 구현이 필요하고, 기반을 두고 있는 GIS와의 효율적인 연동이 필요하다. 본 논문에서는 UniSQL을 기초로 한 DBMS 엔진 레벨에서 공간 데이터 타입과 공간 연산자를 기본적으로 제공하는 객체 관리형 GIS인 GEUS를 기반으로 OpenGIS 서버를 개발하였다. CORBA 분산 컴퓨팅 환경하에서 클라이언트는 OpenGIS 표준 인터페이스를 통하여 OpenGIS 서버가 기초하고 있는 GIS에 저장되어 있는 지리정보를 접근할 수 있고, GIS가 제공하는 지형공간 연산기능을 이용할 수 있고, 또한 다른 GIS와 상호 운용할 수 있다.

• 한국지반공학회지:지반
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• 제13권5호
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• pp.101-124
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• 1997

The root pile system is insitu soil reinforcement technique that uses a series of reticulately installed micropiles. In terms of mechanical improvement by means of grouted reinform ming elements, the root pile system is similar to the soil nailing system. The main difference between root piles and soil nailing are due to the fact that the reinforcing bars in root piles are normally grouted under high pressure and that the alignments of the reinforcing members differ. Recently, the root pile system has been broadly used to stabilize slopes and retain excavations. The accurate design of the root pile system is, however, a very difficult tass owing to geometric variety and statical indetermination, and to the difficulty in the soilfiles interaction analysis. As a result, moat of the current design methods have been heavily dependent on the experiences and approximate approach. This paper proposes a quasi-three dimensional method of analysis for the root pile system applied to the stabilization of slopes. The proposed methods of analysis include i) a technique to estimate the change in borehole radium as a function of the grout pressure as well as a function of the time when the grout pressure is applied, ii) a technique to evaluate quasi -three dimensional limit-equilibrium stability for sliding, iii) a technique to predict the stability with respect to plastic deformation of the soil between adjacent root piles, and iv) a quasi -three dimensional finite element technique to compute stresses and dis placements of the root pile structure barred on the generalized plane strain condition and composite unit cell concept talon형 with considerations of the group effect and knot effect. By using the proposed technique to estimate the change in borehole radius as a function of the grout pressure as well as a function of the time, the estimations are made and compar ed with the Kleyner 8l Krizek's experimental test results. Also by using the proposed quasi-three dimensional analytical method, analyses have been performed with the aim of pointing out the effects of various factors on the interaction behaviors of the root pile system.

• 수산해양교육연구
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• 제6권2호
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• pp.190-197
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• 1994

1989년부터 1993년까지 5년동안 우리 나라 주변해역에서 발생한 2513건의 해난사고(海難事故)를 유형(類型), 원인(原因) 및 선종(船種)에 따라 21의 인자(因子)로 분류하고, 이를 주요분분석법(主成分分析法)에 의해 분석(分析)한 결과를 요약하면 다음과 같다. 1. 해난사고(海難事故)의 주된 원인(原因)은 운항부주의(運航不主意), 기관취급불량(機關取扱不良) 등 인적요인(人的要因)에 있으며, 사고(事故) 유형(類型)으로서는 기관고장(機關故障)이, 선종(船種)으로서는 어선(漁船)이 특히 해난사고(海難事故)의 큰 비중을 차지한다. 2. 어선(漁船)의 경우에는 기관고장(機關故障) 등 경미(輕微)한 해난사고(海難事故)가 많은데 비해 화물선(貨物船), 여객선(旅客船), 유조선(油槽船)의 경우에는 좌초(坐礁), 추돌(衝突), 침수(浸水) 등 재산(財産)과 인명(人命)의 피해가 큰 대형해난사고(大型海難事故)가 많은 경향이다. 3. 대형해난사고(大型海難事故)중 좌초(坐礁)와 충돌(衝突)은 그 주된 원인(原因)이 운항부주의(運航不主意) 등 인적요인(人的要因)에 있고, 침수(浸水)와 전복(顚覆)은 인적요인(人的要因)이외에도 기상악화(氣象惡化)나 재질구조결함(材質構造缺陷) 등에 기인(起因)하는 바가 크다.

• Parasites, Hosts and Diseases
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• 제54권5호
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• pp.555-563
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• 2016

For several years, we have conducted a series of studies on the patterns of ancient parasitism prevailing in the soil of rural and urban areas of past Kingdom of Korea. Actually, during our survey of paleoparasitology in archaeological sites of Korean peninsula, numerous ancient parasite eggs were discovered in the samples from the city districts of Hansung (Joseon) and Buyeo (Baikje), the palace moat at Gyeongju (Silla), shell-midden site at Bonghwang-dong (Silla to Joseon), and the reservoir found in Hwawangsansung fortress (Silla). By the paleoparasitological studies, with respect to parasitism in the high-density populations of ancient towns and cities, we have managed to catch glimpses of the patterns prevalent therein: a serious parasitic contamination of the soil in ancient urban areas, but not in rural areas of the past. Our historical research also proposed the plausible mechanism of parasite infection very serious indeed among urban populations in Korean history. Although city dwelling doubtless has accrued significant benefits for people and populations with agriculture, it can be equally supposed that living in such highly populated areas might have facilitated the spread of parasite infection.

• 헤리티지:역사와 과학
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• 제33권
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• pp.36-67
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• 2000

Square-shaped moated burial precincts(方形周溝墓) can be classified into type I that has bridges only at the comers, type II that has bridges at the comers and sides, type III that has bridges only at the sides, type IV that is surrounded by the moat without bridges, type V that has its sides less than those of type I ~ V by 1 or 2, and type VI that has the round-shaped ground. But the time differences among the types are not known yet. For the burial appliances of square-shaped moated burial precincts, there are stone coffins, pit burials and jar burials. The major burial appliances situated in the mound are stone coffins and pit burials, and jar burials are subsidiary appliances that were buried at the shoulder part of the mound or at precincts. According to the case of Gwanchang-ri KM423, grave mounds, which arc closely related with the burial appliances, were built by heaping up the earth in and around the precinct as low as only enough to protect the burial appliances. Considering the relics unearthed in the burial compartment of KM437, the time when square-shaped moated burial precincts were formed is estimated to be the age when Songguk-ri type earthenware and clay stripes earthenware co-existed. It was the early Iron Age when ironware began to sp read in this country. Emerging first in that age, square-shaped moated burial precincts were presumably formed until around the end of BC or the beginning of AD, when KM404 and KM423, which were unearthed with plain earthenware, grey earthenware and ironware, were formed. When analyzing the form of small-sized graveyards in precincts, the unearthed relics and the locations, the people who formed square-shaped moated burial precincts were considered as those who had a culture comprising clay stripes earthenware, which appears newly in the Songguk-ri type earthenware of native, and ironware, and a settled agricultural society based on paddy fields and labor forces of family units.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1995년도 추계학술대회 논문집
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• pp.343-346
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• 1995

In this paper, the effect of alkaline oxides on the humidity sensitivity of $V_2O_{5}$(2mol%)-doped $TiO_2$(98mol%) was investigated as functions of $Li_{2}Co_{3}$, $Na_{2}Co_{3}$. III-1. Measurement of Density. When the mole% of $Li_2$O is varied 0,1,2,5mol%, the more the mole% of additives is increased, the more difference of bulk and apparent density is largely narrowed. The difference of two densities of sample containing 2mol% $Na_2O$ was large all the moat. The sample containing 1mol% $Na_2O$ was small most. III-2. Observation of porosity. The porosity and total intrusion volume according to various amounts of $Li_2O$ was reduced and those of sample containing 2mol% $Na_2O$ as 31.13%, 0.1155mL/g was the highest and 1mol% $Na_2O$ was lowed most and 5, 10mol% $Na_2O$ was more high compare with sample without alkaline oxides. III-3. Characteristic of humidity sensitivity. 1. Impedance of samples containing $Li_2O$ was high compare with sample without alkaline oxides, so we thought it showed Poor sensitivity because it have no impedance changing rapidly as function of relative humidity. 2. When the humidity was increasing from 30RH% to 90RH%, the impedance of sample containing 2mol% $Na_2O$ at 120HZ changed exponential rapidly from 6${\times}$$10^{7}$$\Omega$) to 1.25${\times}$$10^4$$\Omega$. At under 50RH% and over 50RH%, the humidity sensitivity of samples containing 2mol% $Na_2O$ was best especially in the range of the low humidity. III-4. Characteristic of TG curves. When algal me oxide $M_{2}CO_{3}$(M=Li, Na) were added into $V_{2}O_{5}$-doped $TiO_2$, the stability of humidity sensitivity of samples containing amounts of $Li_2O$ was unstable. The samples containing 1mol% $Na_2O$ was unstable.

• 한국응용곤충학회지
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• 제10권2호
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• pp.77-83
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• 1971

증량제의 특성 중 Sumithion 분제의 주성분 분해에 영향을 미치는 요인을 밝힐 목적으로 시험하여 다음과 같은 결과를 얻었다. 가. 증량제의 특성 중 수분함량, 흡습성, C.E.C. 활성천, 염기총량, 표면적 등이 Sumithion 분제의 주성분 분해에 영향을 미치는 요인이 됨을 알았고, 나. 증량제에 의한 Sumithion의 분해산물은 Dimethyl phosphorothionate와 3-methyl-4-nirophenol 및 이의 유연화함은, n-hexane, ethyl ether 불용, methyl alcohol, ethyl, alcohol가용의 화함물이 있음을 알았다. 다. 증량제의 종류별로는 벤토나이트, 규조로, 카올린, 활석의 순으로 분해율이 높았다. 라. 그리고 증랑제의 Sumithion 분제 주성분 변화에 영향을 미치는 특성 중 수분과 염기가 가장 대표적인 주성분 분해 요인으로 보인다.

• 한국정보통신학회논문지
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• 제9권6호
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• pp.1302-1308
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• 2005

무선 인터넷 환경에서 호 수락 방식과 보다 적은 범위 셀 환경에서 QoS를 보장하기 위해 통합된 페이징과 루프 정보 관리 캐시를 사용하는 Cellular IP 특성을 가진 Cellular-IP/PRC 네트워크를 제안한다. 제안한 호 수락 방식은, 이동 노드의 홈 기지국 용량이 충분하고, 인접 셀 이동 노드가 홈 기지국에서 호가 수락되었다고 가정할 경우 받을 간섭의 증가량을 고려해 통화 품질이 보장될 때, 홈 기지국은 새로운 호를 이동노드의 송신 전력 예측에 기반을 둔 호 수락 방식이다. 무선 인터넷 네트워크 내의 페이징과 라우터를 관리하기 위해 사용되었던 PC(Paging Cache)와 RC(Routing Cache)를 하나의 PRC(Paging Router Cache)로 통합 관리하고, 모든 노드 내에 구성하여 운용토록 하고, 이동 노드의 핸드오프 및 로밍 상태를 효율적으로 관리할 수 있도록 이동 노드에 핸드오프 상태 머신을 추가하며, 노드에서 관련 기능을 수행하도록 연구한다. 시스템 환경에서 통화량에 영향을 주는 인자를 분석하고 각 링크 통화권 및 불균형 정도를 예측하여, 하향링크에 의해 통화권이 제한되었는지를 판단하여 호를 수락 또는 차단하는 알고리즘 이용 총 송수신 전력을 기반으로 제안한 알고리즘을 응용해서 QoS에서 가장 밀접하고 중요한 호 차단 확률과 호 탈락 확률, GoS(Grade of Service), 셀 용량의 효율을 예측 처리하여 QoS 성능 개선을 나타낸다.