• Conservation Science in Museum
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• v.20
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• pp.13-30
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• 2018

Ancient metal objects with inlaid designs were mainly decorated using the wire inlay technique in which "V"- or "U"-shaped grooves were cut in a metal object and then filled with gold or silver. Previous studies on ancient metal objects featuring wire inlay generally attempted to ascertain the inlay techniques applied by examining photomicroscopes acquired during conservation treatment. However, they had limitations when examining wire inlay technique to the minute details. Wire inlay technique can be better investigated by enlarging X-ray films of relics using stereoscopic microscopy under transmitted light. The core processes of the wire inlay technique involve cutting grooves using a chisel and creating the inlay wires, but researchers hold varying opinions about the two processes. This study analyzed the entirety of the materials able to shed light on the main processes applied in Baekje wire inlay by examining X-ray films of relics through stereoscopic microscopy. This exhaustive research revealed that two types of techniques were used for wire inlay during the Baekje period. One is a plastic process of engraving dotted lines using a chisel and is found mostly in objects from the Cheonan and Gongju areas. The other is a cutting process that incises fine lines and was used mostly in relics from the Osan, Seosan, and Wanju areas. It is likely that the Baekje wire inlay techniques feature regional differences because the respective techniques were used or introduced by different groups of people.

• 한국문화재보존과학회:학술대회논문집
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• 2006.11a
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• pp.67-72
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• 2006

• Korean journal of applied entomology
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• v.9 no.1
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• pp.25-32
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• 1970

This experiment was conducted to find out the simultaneous control effect of granulated insecticides on the several major rice insect pests in Korea. The granulated insecticides used were Terracur P$5\%$ (one of the phosphoric insecticides), Lebaycid $5\%$, and Sang-gamma (gamma-BHC) $6\%$. Those insecticides were broadcasted by hand on the paddy field at the ratio of 3kg. in June and 4kg. in August per 10 a, and the date of insecticidal application was based on the maximum moth occurrence of the rice stem borer in 1969. The rice insect pests tested in this study were rice stem borer (Chilo suppressalis W.), green rice leafhopper (Nephotettix bipunctatus cincticeps U.), smiller brown planthopper (Laodelphax striatellus F.), and white back planthopper (Sogotella furcifera H.). For the study of residual effectiveness of the insecticides, the rice stem borer larvae just hatched from the eggs were installed on the sheath of rice plants collected from the paddy field after insecticidal treatment, and the mortality was made at 48 hours after installation. High mortality was observed in Terracur P and Sang-gamma treatments and low mortality in Lebaycid treatment. The duration of residual effects giving about 50% mortality was about 14 days in Sang-gamma and about 6 days in Terracur P treatments. The study on the effectiveness of the insecticides to the rice stem borer in the paddy field was made by the number of dead blades and white heads of the rice plants injured by the larvae, and the number of survival larvae in the straws after crop harvest. The order of insecticidal effectiveness to the rice stem borer was Terracur P=Sang-gamm>Lebaycid. The study on the effectiveness of the insecticides to the leafhoppers and planthoppers in the paddy field was made by the population density by sweeping (5 times) at the given day intervals after treatments. Terracur P was highly effective for the control of the green rice leafhoppers and Lebaycid was moderately effective, but Sang-gamma seemed not to be effective. The effectiveness of the insecticides tested to the planthoppers was not clear, and it seemed to related with the low insect population density. Study on the determination of proper timing of insecticidal application was not also made clear, and it seemed to be short in the range of day intervals in the insecticidal application. For the study on the control effects of the rice insect pests, rice yield per 100 hills per plot was observed. There was no statistically significant difference among the treatments in rice yields, but the order of yield (Terracur P>Sang-gamma>Lebaycid>Control) was paralleled with the tends of control effects above mentioned. In a view point of simultaneous control of the rice stem borers and green rice leafhoppers by the application of granulated insecticides, Terracur P and Lebaycid were more effective than Sang-gamma which have been used.

• The Science & Technology
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• v.32 no.7 s.362
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• pp.30-31
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• 1999

오늘날 누구든지 정보의 바다 인터넷의 정보와 쉽게 접근할 수 있는 것은 바로 월드와이드 웹(WWW:웹으로 약칭. 거미집처럼 세계 정보망을 타고 전자문서를 자유자재로 검색할 수 있게 만든 인터넷의 게시판 서비스)이라는 매커니즘의 덕이라고 할 수 있다. 현대의 웹이 마치 그 옛날의 인쇄기처럼 중요한 가치를 지녔다고 해서 웹 발명자 버너즈-리를 '현대의 구텐베르크'라고 부르는 사람들이 많다. 그는 엘리트들만이 사용할 수 있던 강력한 통신시스템을 일반대중이 접근할 수 있는 매스미디어(대중매체)로 바꿔 버렸다. 만약에 이 발명이 전통적인 과학의 범주에 속한다면 그의 업적은 충분히 노벨상감이라고 평가하는 사람들도 있다.

• 한국문화재보존과학회:학술대회논문집
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• 2007.10a
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• pp.61-64
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• 2007

• Korean Chemical Engineering Research
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• v.47 no.2
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• pp.141-149
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• 2009

The Cu thin film material and process, which have been already used for metallization of CMOS(Complementary Metal Oxide Semiconductor), has been highlighted as the Cu metallization is introduced to the metallization process for giga - level memory devices. The recent progresses in the development of key elements in electrochemical processes like surface pretreatment or electrolyte composition are summarized in the paper, because the semiconductor metallization by electrochemical processes such as electrodeposition and electroless deposition controls the thickness of Cu film in a few nm scales. The technologies in electrodeposition and electroless deposition are described in the viewpoint of process compatibility between copper electrodeposition and damascene process, because a Cu metal line is fabricated from the Cu thin film. Silver metallization, which may be expected to be the next generation metallization material due to its lowest resistivity, is also introduced with its electrochemical fabrication methods.

• Journal of Digital Convergence
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• v.17 no.3
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• pp.427-432
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• 2019

In the 12th century to the 13th century, was the heyday of celadon, Koryo celadon after experienced celadon firing technology of imitation to the peak period of the development of Chinese celadon, especially on decoration technology pioneered the self unique style, the way of engraving, $xi{\grave{a}}ngqi{\grave{a}}n$. During this period, the southern Song dynasty celadon in China also innovated in the mature celadon firing technology and became more distinctive. The decorative style also promoted the aesthetic interest of the Song dynasty. Celadon decoration is not only a decorative art of ceramic art, but also a representation of national cultural phenomenon with the traditional culture in the development of contemporary art, play a more important role and value.

• Proceedings of The KACE
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• 2017.08a
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• pp.83-85
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• 2017

본 연구의 목적은 스마트 교육을 위한 수해양 전공학생과 일반고 학생의 스마트폰 활용 행태를 비교하고 그 차이를 살펴보았다. 이를 위해 일반고 학생과 수해양 관련 전공 계열의 학생 총 2,725명을 연구대상으로 선정하였다. 연구결과 스마트폰 활용 행태에서 수해양 전공 학생들은 음악듣기, 동영상 감상, 시간보기, SNS, 학습 이외 정보검색 등의 순으로 나타났다. 일반고 학생들은 음악듣기, 동영상감상, 학습 이외 정보검색, 시간보기, SNS 등의 순으로 나타났다. 스마트폰 활용 행태 차이의 상위 세 항목은 게임, 19세 이상사이트 이용, 웹툰에서 비교적 큰 평균차이가 나타났다.

• Journal of Advanced Marine Engineering and Technology
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• v.30 no.2
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• pp.247-252
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• 2006

Almost ship monitoring systems are event driven alarm system which warn only when the measurement value is over or under set point. These kinds of system cannot warn until signal is growing to abnormal state that the signal is over or under the set point. therefore cannot play a role for preventive maintenance system. This paper proposes fault diagnosis method which is able to diagnose and forecast the fault from present operating condition by analyzing monitored signals with present ship monitoring system without any additional sensors. By analyzing the data with high correlation coefficient(CC), correlation level of interactive data can be defined. Knowledge base of abnormal detection can be built by referring level of CC(Fault Detection CC. FDCC) to detect abnormal data among monitored data from monitoring system and knowledge base of diagnosis built by referring CC among interactive data for related machine each other to diagnose fault part.

• 보존과학연구
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• s.19
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• pp.61-74
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• 1998

Conservation Treatment Process 1. Inlaying is observed at the back and head of a sword to grasp the inner structure of relics by photographing X-ray. 2. After removing rust of surface, inlaying emerge. 3. After hardening, inlaying emerge to magnetite layer by standing Scapel and Vibrotool throught microscope. Charcterization 1. Most of domestic inlaying become designed to the head of a sword but this inlaying become designed to gold inlaying to the back of a sword. 2. Inlaying is the technique to groove V-shape on the surface of relice and to put gold thread in.