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Analyses of Phospholipids in Soybean Oils by HPLC (HPLC를 이용한 대두유 인지질의 분석)

  • Yoon, Suk-Hoo;Min, David-B.;Yeo, Young-K.;Horrocks, Lloyd A.
    • Korean Journal of Food Science and Technology
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    • v.19 no.1
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    • pp.66-68
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    • 1987
  • The qualitative and quantitative analyses of phospholipids in chloroform-methanol extracted crude and hexane extracted deodorized soybean oils were carried out by High-Performance Liquid Chromatography (HPLC). The phosphorus contents in hexane extracted crude, degummed, refiend, bleached and deodorized soybean oil were 510, 120, 5, 1.4 and 1 ppm, respectively. The chloroform-methanol extracted crude soybean oil had 800 ppm phosphorus. The phospholipids found in crude oil were phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine and phosphatidic acid. Only phosphatidylchonine and phosphatidylethanolamine were detected in the deodorized soybean oil. The HPLC method described in this report can separate and detect individual phospholipids in soybean oil at 0.1 ppm level in 30 min.

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Stress Reduction Protocol for Proper Local Anesthesia of Advanced Infected Teeth in Medically Compromised Patients -Review of Literature & Report of Cases- (전신질환자에서 과도한 감염치아부 국소마취시 스트레스 감소법 : 문헌적 고찰 및 증례보고)

  • Yoo, Jae-Ha;Choi, Byung-Ho;Sul, Sung-Han;Kim, Ha-Rang;Mo, Dong-Yub
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.8 no.1
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    • pp.1-9
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    • 2008
  • Common dental procedures (local anesthesia and dental treatment) are potentially stress-inducing in many patients, especially medically compromised patients. The body response to dental stress involves the cardiovascular system (an increase in cardiovascular workload), the respiratory organ and the endocrine system (change in metabolism). To minimize the stress to the medical risk patient, the stress reduction protocol was established. The obtained contents were as follows: (1) Recognize the patient's degree of medical risk (2) Complete medical consultation before dental therapy (3) Schedule the patient's appointment in the morning (4) Monitor and record preoperative, perioperative and postoperative vital signs (5) Use psychosedation during therapy (6) Use adequate pain control during therapy (7) Short length of appointment: do not exceed the patient's limits of tolerance (8) Follow up with postoperative pain/anxiety control (9) Telephone the higher medical risk patient later on the same day that treatment was given. This protocol is predicated on the belief that the prevention of or reduction of stress ought to begin before the start of an appointment, continue throughout treatment, and, if indicated, into the postoperative period. The authors used the stress reduction protocol in the care of local anesthesia infected teeth in medically compromised patients. The final prognosis was comfortable without any complications.

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MPEG-21 Event Reporting Message Structure based on digital data broadcasting use case scenarios (디지털 데이터 방송 유즈케이스 시나리오에 기반한 MPEG-21 이벤트 리포팅 구조 설계)

  • 송영주;홍진우;문남미;지경희
    • Journal of Broadcast Engineering
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    • v.8 no.4
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    • pp.399-409
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    • 2003
  • In this paper, we present an Event Reporting which is one of the major items of MPEG-21 and exemplify two digital data broadcasting use case scenarios, and according1y we propose the Event Reporting message structure for MPEG-21 broadcasting contents that is based on these use case scenarios. Every interaction with a Digital Item in the multimedia framework can be called an Event. The need to standardize Event Reporting within the Multimedia Framework arise from the need to monitor and communicate amongst Peers and Users the Events relating to Digital Items and/or the programs and devices that operate on them at any given time. However, there are a number of difficulties in providing an accurate report about an Event. Different observers of the Event may have vastly different perspectives. In this paper, we describe a structure and vision of the Event Reporting. Besides we show the activities on MPEG-21 Event Reporting standardization.

A Study on the Self-Prevention Plan System (자체방제계획서 검토기준 마련 연구)

  • Kim, Sungbum;Noh, Hyeran;Lee, Jinseon;Kim, Jungmin;Ahn, Seungyoung;Seok, Kwangseol
    • Journal of the Society of Disaster Information
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    • v.9 no.1
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    • pp.50-55
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    • 2013
  • Self-Prevention Plan Review Report and Review Standards Process Safety Management(PSM), Safety Management System(SMS), including the contents of the safety management system audit standards, notices and guidelines on the screening form and were analyzed. Were expected through the interview and screening personnel in the screening process to identify problems prior research so that it can be reflected in the. Also divided into methods such as document review and on-site implementation status of the review written Emergency Preparedness Plan depending on the item proposed. Toxic Chemicals Control Act(TCCA) Self-Prevention Plan Review Regulations. However, the substantial approval process, and do not enable the system performance lacked Self-Prevention Plan Review. Review half configuration to enhance the professionalism and efficiency of the work of this research was performed.

A Study on the Application of Safety Design based on the Risk of Construction Process (건설공정 위험성 기반 설계안전성 활용 방안 연구)

  • Lee, Hyeon-Sung
    • Journal of the Society of Disaster Information
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    • v.15 no.4
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    • pp.493-501
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    • 2019
  • Purpose: The purpose of this study is to prevent construction safety accidents, and the design safety systems were reviewed. This paper aims to establish as an effective system by looking at the implementation procedures and contents of the design safety review system. Method: We reviewed the purpose and content of the law, accident statistics, etc. for the study. In addition, we looked at the implementation plans for actual construction sites using the 'design safety' assessment process as defined by the Act. Results: We divided it into the data review phase, the risk factor elicitation and alternative setup phase, and the design safety assessment report preparation stage. Conclusion: it is necessary to derive risk factors that take into account the diversity of construction sites. However, the effectiveness of other reports is questioned as they are often copied and written. Therefore, it is necessary to strengthen external verification procedures attended by construction safety experts.

Korean-Japan Medical Culture Exchange through The Choson Delegation in The 18th Century (18세기 조선통신사를 통한 한일의학문화교류)

  • Cha, Wung-Seok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.6
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    • pp.1418-1430
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    • 2006
  • In the 18th century, Joseon and Japan corresponded politically and culturally through the Joseon Missionary. During this time, the people in Japan who received the Joseon Missionary left many records of their visits and among them were numerous accounts related to medicine, In the years 2003 and 2004, the Korea Institute of Oriental Medicine gathered records that were dispersed throughout japan, and in 20005, it organized the information and put it up on the web along with the original text. This research is an overall report on the documentary records. It analyzes individual documents and looks into what the mainly interested the joseon and Japanese medical worlds at that time. The documents located up till now are 21 medical dialogue records from the 18th century. Through the process of these medical dialogues, the Joseon medical circle discovered a different side of japanese medicine, and the japanese medical world had a chance to directly receive advanced medical skills. Through these medical dialogues, the two countries also exchanged bountiful information about clinical patients. The japanese scholars showed deep interest in Joseon's ginseng, and asked many questions about practical usages of the contents in the medical documents. It is thought that these medical dialogue records will greatly assist studies on the medical history of this time, because it reveals new research data on Korean medical history and Japanese medical history in the latter half of the Joseon Dynasty that has never been reported in the academia before.

The Study on the Storage Time of Jangduck - The Second Report, A Study on the Texture and Sensory Characteristics of Jangduck during Storage - (장떡의 저장성에 관한 연구 -제2보: 저장기간에 따른 장떡의 조직특성과 기호도에 관한 연구-)

  • 이숙미;염초애;조정순
    • Korean journal of food and cookery science
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    • v.13 no.1
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    • pp.16-22
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    • 1997
  • This investigation was undertaken for the purpose of studying the quality and sensoryptability of Jangduck during storage containing various levels of glutinous rice flour. Composition of experiment Jangduck made with different components and contents. A standard samples of Jangduck were soybean paste : glutinous rice flour : ground beef : green onion : garlic : toasted white sesame=100 : 10 or 20 or 30 : 30 : 10 : 5 : 2 (%) and measured acceptability by 15 days. Jangduck estimated for texture characteristics through acceptability. The acceptability of Jangduck was by both objective and subjective methods. Objective measures were made utilizing the Rheometer and Hunter colorimeter. Sensory evaluated was done by a panel of 10 judges. The data analysis revealed following as for estimate of texture changes during storage by Rheometer, the hardness tended to increase as the addition level of glutinous rice flour and beef till 30 days. Hardness decreased slightly after 30 days of storage. Elasticity and cohesiveness tended to increase as the addition level of glutinous rice flour till 15 days and decreased slightly from 16 days to 60 days later By color value of Jangduck, Lightness tended to increase as the addition level of beef during storage periods. Redness tended to increased as addition level of beef before storage and decreased 15 days later. Yellowness increasde than others from days later to 15 days later as the addition level of glutinous rice flour. The result of sensory evaluation revealed that Cl [soybean paste : glutinous rice flour : ground beef : green onion : garlic : toasted white sesame=100 : 30 : 30 : 10 : 5 : 2(%)] produced the best quality in most sensory characteristics during storage.

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Hydrogen shallow donors in ZnO and $SnO_2$ thin films prepared by sputtering methods

  • Kim, Dong-Ho;Kim, Hyeon-Beom;Kim, Hye-Ri;Lee, Geon-Hwan;Song, Pung-Geun
    • Proceedings of the Korean Vacuum Society Conference
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    • 2010.08a
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    • pp.145-145
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    • 2010
  • In this paper, we report that the effects of hydrogen doping on the electrical and optical properties of typical transparent conducting oxide films such as ZnO and $SnO_2$ prepared by magnetron sputtering. Recently, density functional theory (DFT) calculations have shown strong evidence that hydrogen acts as a source of n-type conductivity in ZnO. In this work, the beneficial effect of hydrogen incorporation on Ga-doped ZnO thin films was demonstrated. It was found that hydrogen doping results a noticeable improvement of the conductivity mainly due to the increases in carrier concentration. Extent of the improvement was found to be quite dependent on the deposition temperature. A low resistivity of $4.0{\times}10^{-4}\;{\Omega}{\cdot}cm$ was obtained for the film grown at $160^{\circ}C$ with $H_2$ 10% in sputtering gas. However, the beneficial effect of hydrogen doping was not observed for the films deposited at $270^{\circ}C$. Variations of the electrical transport properties upon vacuum annealing showed that the difference is attributed to the thermal stability of interstitial hydrogen atoms in the films. Theoretical calculations also suggested that hydrogen forms a shallow-donor state in $SnO_2$, even though no experimental determination has yet been performed. We prepared undoped $SnO_2$ thin films by RF magnetron sputtering under various hydrogen contents in sputtering ambient and then exposed them to H-plasma. Our results clearly showed that the hydrogen incorporation in $SnO_2$ leads to the increase in carrier concentration. Our experimental observation supports the fact that hydrogen acting as a shallow donor seems to be a general feature of the TCOs.

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Self Disease Diagnosis System Using Enhanced ART2 Algorithm (개선된 ART2 알고리즘을 이용한 자가 질병 진단 시스템)

  • Kim, Kwang-Baek;Woo, Young-Woon;Kim, Ju-Sung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.11
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    • pp.2150-2157
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    • 2007
  • In this paper, we have proposed a self disease diagnosis system for ordinary persons to help the decision of access methods to a specialized medical management, and for medical specialities to discover new diseases and their symptoms easily, using verification of an individual#s health status by a series of processes performed by oneself. In the proposed self disease diagnosis system, illness is decided by 60 kinds of diseases selected using the report called #Diseases that Koreans take seriously# published by Ministry of Health & Welfare and medical contents called #Engel Pharm#, and also using 161 representative symptoms for the 60 kinds of diseases. An individual#s health information is extracted by diagnosis of one#s health status by a clustering of the 60 kinds of diseases using enhanced ART2 algorithm and input vectors from the results of questions for symptoms of each disease.

Estimation of Lens Dose of Radioactive Isotopes Using ED3 (ED3를 이용한 방사성동위원소 의약품의 수정체 피폭선량평가)

  • Song, Ha-Jin;Ju, Yong-Jin;Jang, Han;Dong, Kyung-Rae;Kang, Kyeong-Won;Choi, Eun-Jin;Kwak, Jong-Gil;Ryu, Jae-Kwang;Chung, Woon-Kwan
    • Journal of Radiation Industry
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    • v.11 no.1
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    • pp.19-25
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    • 2017
  • It is suggested that the dose limit recommended in the Enforcement Decree of Korea's Nuclear Safety Act should not exceed 150 mSv per year for radiation workers. Recently, however, ICRP 118 report has suggested that the threshold dose of the lens should be reduced to 0.2~0.5 Gy and the mean dose should not exceed 50 mSv per year for an average of 20 mSv over 5 years. Based on these contents, $^{123}I$, $^{99m}Tc$, and $^{18}F-FDG$, which are radioisotope drugs that are used directly by radiation workers in the nuclear medicine department in Korea are expected to receive a large dose of radiation in the lens in distribution and injection jobs to administer them to patients. The ED3 Active Extremity Dosimeter was used to measure the dose of the lens in the nuclear medicine and radiation workers and how much of the dose was received per 1 mCi.