• 제목/요약/키워드: a brief review

검색결과 961건 처리시간 0.025초

A Brief Review on Limestone Deposits in Korea, Vietnam and Applications of Limestone

  • Kwak, Yujung;Tuan, Lai Quang;Jung, Euntae;Jangb, Changsun;Oh, Chaewoon;Shin, Kyung Nam
    • 에너지공학
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    • 제29권3호
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    • pp.42-49
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    • 2020
  • Precipitated Calcium Carbonate (PCC) can be utilized in energy-effective paper production. Limestone is a raw material for synthesizing PCC. Since the PCC production yield depends on the physicochemical properties of the limestone, a basic investigation of the raw limestone is required. This study provides a brief review of the origin of limestone, limestone distribution characteristics, and limestone deposits in Korea and Vietnam. Most limestones in Korea were formed in the Paleozoic era. On the other hand, limestones in Vietnam have various ages from the Precambrian to the Triassic. Limestone is the most largely produced mineral in Korea, but Vietnam has 5 times more amount of limestone reserves than Korea.

질병지각에 대한 체계적 문헌고찰 - 국내 학술지 논문을 중심으로 - (A Systematic Review of Illness Perceptions Using the IPQ-R or BIPQ in South Korea)

  • 김혜진;변진이
    • 한국콘텐츠학회논문지
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    • 제19권10호
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    • pp.432-441
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    • 2019
  • 본 연구는 국내 질병지각 연구의 동향을 알아보기 위한 체계적 문헌고찰로서 질병지각 연구의 특성을 확인하고 이와 관련된 요인 간의 관계를 파악하였다. 2019년 5월까지 국내 학술지에 발표된 논문 10편을 최종 분석에 사용하였다. 포함된 논문 모두 상관관계 조사연구로, 평균 대상자 수는 175명이었으며, 혈액투석, 폐결핵, 암 등의 질병을 대상으로 하였다. 질병지각 측정 도구로는 Illness Perception Questionnaire-Revised (IPQ-R)를 사용한 연구가 3편(30%), Brief Illness Perception Questionnaire (BIPQ)를 사용한 연구가 7편(70%)이었고, BIPQ를 사용한 연구는 모두 총점을 이용하여 대상자의 질병지각을 분석하였다. 질병지각과 관련된 요인으로는 우울, 삶의 질, 자가관리, 사회적 지지 등이 연구되었으며, 그 중 사회적 지지가 가장 높은 빈도로 대상자의 질병지각과 관련이 있는 것으로 나타났다. 추후 다양한 질병군을 대상으로 질병지각 개별 영역에 대한 연구가 수행되어야 할 것으로 보이며, 질병지각을 고려한 중재프로그램을 개발해야 할 필요성이 있다.

화자인식 기술 및 국내외시장 동향 (An Overview and Market Review of Speaker Recognition Technology)

  • 유하진
    • 대한음성학회:학술대회논문집
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    • 대한음성학회 2004년도 춘계 학술대회 발표논문집
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    • pp.91-97
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    • 2004
  • We provide a brief overview of the area of speaker recognition, describing underlying techniques and current market review. We describe the techniques mainly based on GMM(gaussian mixture model) that is the most prevalent and effective approach. Following the technical overview, we will outline the market review of the area inside and outside of the country.

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고속전철 기술개발사업 본선 시운전 집전시험계획 (A Current Collection Performance On-line Test Plan in Korea High Speed Train Development Project)

  • 조용현;최강윤;백광선
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2001년도 추계학술대회 논문집
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    • pp.156-162
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    • 2001
  • Current collection performance on-line tests for a Korean High Speed Train being developed in G7 project is scheduled to start in June, 2002. In this paper, preparatory efforts for measuring contact forces which is regarded as one of major measuring items in the test are introduced. Specifically speaking, review of frequencies related with contact force fluctuations, brief of contact force measuring algorithm, review of measuring instrument specifications and development of a data acquisition program are presented.

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늑골에 발생한 동맥류성 골낭종: 1치험례 (Aneurysmal Bone Cyst of Rib: A Case Report)

  • 김명욱
    • Journal of Chest Surgery
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    • 제6권2호
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    • pp.175-180
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    • 1973
  • Aneurysmal bone cysts of rib continue to interest the clinicians because of their rarity. We experienced a case of aneurysmal bone cyst of Rt 10th rib, which was occupying the Rt pleural cavity as a huge mass. This case was treated surgically with good result. In addition, general concept of aneurysmal bone cyst with brief review of literatures was disclosed here.

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설갑상선(舌甲狀腺)의 1례(例) (A Case of Lingual Thyroid)

  • 이경자
    • 대한핵의학회지
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    • 제3권1호
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    • pp.101-105
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    • 1969
  • A case of lingual thyroid in 10 years old girl is presented with the use of radioactive iodine ($^{113}I$) and the scintigram for the diagnostic evaluation. A brief review of literature on the incidence, etiology and-development, symptomatology, diagnosis, and treatment of the lingual thyroid was done.

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A Review on Nonparametric Density Estimation Using Wavelet Methods

  • Sungho;Hwa Rak
    • Communications for Statistical Applications and Methods
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    • 제7권1호
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    • pp.129-140
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    • 2000
  • Wavelets constitute a new orthogonal system which has direct application in density estimation. We introduce a brief wavelet density estimation and summarize some asymptotic results. An application to mixture normal distributions is implemented with S-Plus.

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1 권 1 호의 연구 동향과 연구 방법에 관한 고찰 (『Asia Pacific Journal of Corpus Research』)

  • 정채관
    • 아시아태평양코퍼스연구
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    • 제1권1호
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    • pp.127-132
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    • 2020
  • The purpose of this review is to provide local readers, more specifically, Korean student readers who are not all that familiar with the English language a general overview of research articles that have been published in Asia Pacific Journal of Corpus Research vol. 1, no. 1. A brief summary of each research article focusing on research methods and then followed by an overall review and some insights on research issues will be presented.

Carotenoids 화학의 연구방법 (Methodology of Carotenoids Chemistry)

  • 김재웅
    • 한국식품영양학회지
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    • 제14권4호
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    • pp.360-366
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    • 2001
  • This brief review is organized to integrate methodology of carotenoids chemistry from the author's experimental conceps. The majors include classification of carotenoids. extraction·phase separation, purification. crystalyzation, identification, quantitation, spectroscopic properties, organic reactions, and analytical methods of carotenoproteins. The goal is not write a important conceps of carotenoid but to provide a technical methods that may be useful to researchers of natural products chemistry.

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