• Title/Summary/Keyword: 가시새

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The Method of Transformation from Procedural Program into Object Based Program (절차적 프로그램으로부터 객체기반 프로그램으로의 변환 방법)

  • 이정화;김현수
    • Proceedings of the Korean Information Science Society Conference
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    • 1999.10a
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    • pp.487-489
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    • 1999
  • 기존의 절차 중심적으로 개발되어진 시스템들은 일반적으로 오래 전에 개발되었으며 규모가 크고 구조화되어 있지 않아서 이해하기 어렵고 분석에 드는 비용이 크다. 그러나 그런 시스템들은 이미 운영환경에 관한 많은 비용과 중요한 정보들을 포함하고 있어서 시스템을 폐기하기 곤란하며 새로 개발하는 데에도 많은 비용과 시간이 요구된다. 이러한 절차 중심적 소프트웨어들이 제공하는 서비스를 계속 유지해가면서 그 시스템을 현대화하기 위한 방안으로 객체 지향 구조로의 소프트웨어 재공학이 요구되고 있다. 본 논문에서는 기존의 절차 중시적 소프트웨어 시스템을 객체 지향 소프트웨어 시스템으로 변환하는 방법에 관하여 논의한다. 이를 위해 프로그램에 내재되어 있는 타입 가시성 정보와 자료 가시성 정보를 그래프로 표현하고 이 그래프를 이용하여 객체를 추출하는 방법을 제시한다. 또한, 추출된 객체들을 클래스로 표현하고 클래스들 간의 관계를 파악하며, 클래스들을 기반으로 기존의 코드를 객체 지향 중심의 코드로 변환하기 위한 방법들을 연구한다.

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Identification of Pigment Separated from Cockle Shell (새조개 연체부위의 색소 동정)

  • 배태진;강동수;최옥수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.6
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    • pp.1074-1079
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    • 1996
  • Physicochemical characteristics of pigment separated from cockle shell were studied. Pigment on the cockle shell was peeled with distilled water, and soaked in 4% TCA solution for 30 minutes and filtered. Filtrate was washed 3 times with distilled water and Iyophilized. Dried pigment was dissolved with 2N NaOH solution and preparative TLC with 2N NaOH : acetone(1 : 1). UV/vis spectrum of pigment separated from cockle shell and melanin as standard was same one peak at UV area and λ$_{max}$was 226nm. Dissolved property of pigment was same as that of melanin. Pigment was not ommochrome but like melanin, because it was insoluble in formic acid, whitening in $H_2O_2, $ and pattern of UV-spectrum was same as melanin. Pigment separated from cockle shell was stable at high temperatures. In thermal treatment at $70^{\circ}C, $ $80^{\circ}C, $ $90^{\circ}C$ and $100^{\circ}C$ for 8 hours, retention ratio of pigment separated from cockle shell were 95.0%, 93.3%, 90.8% and 87.6%, respectively.

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Improvement of Hong-Ou-Mandel Interference Visibility by Using a Single-Mode Optical-Fiber Photon Collector (단일모드 광섬유 집광기를 이용한 Hong-Ou-Mandel 간섭 가시도 향상)

  • Han, Sung-Wook;Kim, Heonoh;Seo, Joo Yeon;Kim, Myung-Whun
    • New Physics: Sae Mulli
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    • v.68 no.12
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    • pp.1374-1377
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    • 2018
  • We achieved 95% visibility in the Hong-Ou-Mandel interference experiment while we achieved only 56% visibility in a previous report. We used a 120 mW 405 nm single-mode continuous wave laser, a 5-mm-thick type-1 ${\beta}$-barium borate single crystal, standard Hong-Ou-Mandel interferometer optics, two avalanche photodiode single-photon counters, and a homemade coincidence counting unit. The photon collection unit was the key difference between the present study and the previous study. In the present experiment, we used single-mode optical fibers for photon collection, which suppressed accidental coincidence between-different mode photons by acting as a spatial filter because of its core size being much smaller than a multi-mode fiber.

A Taxonomic Review of the Berosus Leach (Coleoptera: Hydrophilidae) in Korea (한국산 점박이물땡땡이속(딱정벌레목 : 물땡땡이과)의 분류학적 연구)

  • LEE, Dae-Hyun;AHN, Kee-Jeong
    • Korean journal of applied entomology
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    • v.55 no.3
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    • pp.205-214
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    • 2016
  • A taxonomic study of Korean Berosus Leach is presented. Four species [Berosus (Berosus) japonicus Sharp, Berosus (Berosus) punctipennis Harold, Berosus (Enoplurus) lewisius Sharp, and Berosus (Enoplurus) spinosus (Steven)] in two subgenera are recognized, one of which [B. (E.) spinosus] is reported for the first time in Korea. We also found that B. (B.) puchellus MacLeay previously recorded in Korea was an incorrect identification of B. (E.) lewisius Sharp. Habitus and SEM photographs, key and diagnoses of the known species are provided.

A Study on the Method of Oeyeokki and Joongkit in Earth Wall of Government Constructions in the period of Chosun Dynasty (조선시대 관영건축의 벽체에 사용된 중깃(中衿)과 외엮기 기법에 대한 연구)

  • Lee, Seung-Hwan;Jang, Hun-Deouk
    • Journal of architectural history
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    • v.28 no.4
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    • pp.27-36
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    • 2019
  • The traditional earth wall structure consists of a Joongkit(a small reinforcing post inside a wall) and a Oe(a miscellaneous tree, rendered laths) based on the space between the columns and applying the soil. The members who act as the base layer before applying soil used joongkit, sakmok, and oemok, which are known to correspond to the current joongkit, gasisae, and lath strips. This study was designed to understand the following through an analysis of the ancient texts, such as uigwe. Through a study on the usage and specifications of joongkit recorded on the uigwe, I wanted to reveal that joongkit is a material that has different specifications, functions, and installation techniques from current joongkit. The purpose of this study was to present the differences and technical features of the components of use for two types of oeyeokki technique of traditional wall. In addition, the items to be considered at the actual cultural heritage repair site were reviewed in the restoration of the earth wall weaving technique.

First Record of the Spotted Butterfish, Scatophagus argus(Scatophagidae, Perciformes) from Korea (한국산 Scatophagidae과(농어목) 어류의 1 미기록종, Scatophagus argus)

  • Lee, Chung-Lyul;Joo, Dong-Soo
    • Korean Journal of Ichthyology
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    • v.10 no.2
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    • pp.164-167
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    • 1998
  • Three specimens (148.8~227.1mm standard length) of the spotted butterfish, Scatophagus argus (Linnaeus), of the family Scatophagidae were collected for the first time from coastal waters of Puan, Chollabuk-do, Korea from October 1995 to September 1996. S. argus was characterized by having numerous round or oval black spots on body surface, 15~16 gill rakers, the united branchiostegal membranes and 4 anal fin spines.

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Characteristics of Major Diseases causing Eleutherococcus senticosus Max (가시오갈피에서 발생하는 주요 병해충 특성)

  • Lee, Jae-Hong;Jeong, Haet-Nim;Kang, An-Seok;Choi, Kang-Jun
    • Korean Journal of Medicinal Crop Science
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    • v.15 no.3
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    • pp.199-202
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    • 2007
  • This study was carried out to provide pest control information for the cultivation of Eleutherococcus senticosus Max. As a result of investigation of the diseases and insect pests, three pathogens and three insect pests were identified from the field sample, respectively. The identified insects pests were aphids, stinkbugs and Bothrogonia japonica. Occurrenre peaks of aphids were occurred on June and August, and generally young leaves and flower buds were injured mainly. The identified diseases were black ring spot caused by Phoma sp., gray mold caused by Botrytis cinerea and leaf blights caused by Rhizoctonia solani. The black ring spot was the most severe disease and was investigated from the beginning of June, and the incidence of the disease was 30% higher than that on September. As a result of growth test under different temperature conditions on PDA, these pathogens showed the best mycelial growth rate between 25 $^{\circ}$C and 30 $^{\circ}$C, and these results indicate that these diseases occur on hat summer season.

음성합성을 위한 분절음 길이예측 모델링

  • 정현성
    • Proceedings of the KSLP Conference
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    • 2003.11a
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    • pp.236-236
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    • 2003
  • 음성합성을 위한 운율연구는 실험음성학과 음성공학 분야에서 활발히 이루어져 왔고, 가시적인 성과도 거두어 왔다. 최근 운율의 자연성을 향상시키기 위한 노력은 corpus-based unit selection에서와 같이, 대단위 음성자료에 의존하게 되면서 급격한 자연성의 향상을 가져온 것이 사실이지만, 여전히 새로 주어진 자료에 대해서 부자연스러운 운율을 극복해야 한다는 과제를 안고 있다. 이 논문은 길이, 억양, 에너지 등의 운율요소 가운데, 우선적으로 분절음의 길이에 초점을 두고, 대규모 음성자료를 바탕으로 한 자료기반형 길이예측모델을 지양하고 언어학적 지식과 언어자질을 이용한 지식기반형 길이예측모델을 제시하고자 한다. 모델링을 위한 방법으로는, 기본적으로 자료기반형 모델링 기법이지만 언어자질을 이용한 길이예측이 가능한 Classification and Regression Tree (CART) 모델링과 전통적인 지식기반형 모델링인 sequential rule systems을 확대시킨 Sums-of-Products 모델링을 사용한다. (중략)

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