시판되는 생수 내 무기물 함량에 관한 연구

소유려,백병주,김재곤,양연미,김하나 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.3

생수 내에는 많은 미네랄이 포함하고 있으며, 이 중 칼슘, 나트륨, 칼륨, 마그네슘, 불소는 생수통에 반드시 표기해야 할 무기물이다. 칼슘, 마그네슘, 불소와 같은 무기물은 치아형성에 관여하며, 적절하게 섭취시 치아우식증을 예방할 수 있다. 현행 먹는 샘물 수질기준에 따르면 무해무기물질인 칼슘과 마그네슘에 대한 기준치는 없으며, 유해무기물질인 불소와 같은 무기물은 2 mgF/L 이하로 규정하고 있다. 본 연구는 국내에서 판매되고 있는 생수 15종을 대상으로 칼슘, 마그네슘, 불소의 농도를 측정하였고, 생수 내 무기물 함량의 표기 여부 및 무기물 농도를 비교, 검토하여 다음과 같은 결론을 얻었다. 1. 15개의 생수 중 1개의 생수를 제외하고 모두 칼슘함량을 표기하였다. 평균 칼슘농도는 34.68±31.84 mg/L, 최대 12.891±1.85 mg/L, 최소 2.0±0.02 mg/L이었다. 2. 15개의 생수 중 2개의 생수를 제외하고 모두 마그네슘 함량을 표기하였다. 평균 마그네슘 농도는 9.22±11.06 mg/L, 최대 30.43±0.75 mg/L, 최소 0.0 mg/L이었다. 3. 15개의 생수 중 4개의 생수를 제외하고 모두 불소 함량을 표기하였다. 평균 불소 농도는 0.25±0.33 mg/L, 최대 1.13±0.04 mg/L, 최소 0.01±0.03 mg/L이었다. 모두 생수는 현행 먹는 샘물 기준치인 2 mgF/L 이하에는 만족시켰다. Drinking water has lots of minerals, especially calcium, sodium, kalium, magnesium, and fluoride must be labelled on the bottle about their contents. Minerals like calcium, magnesium, and fluoride have influence to the tooth development. Appropriately taking some minerals, dental caries can be prevented somewhat degree. There is no guide line about innoxious minerals like calcium and magnesium, however, noxious mineral like fluoride, should be contained less than 2 mgF/L according to the current drinking water standard. Hereupon, it is necessary to recognize the concentration of fluoride in drinking water, so I studied 15 samples of domestic drinking water on sale about the concentration of calcium and magnesium, fluoride. The results obtained were as follows ; 1. 14 drinking waters in 15 samples showed various Ca concentration. The average Ca concentration is 34.68±31.84 mg/L. the highest is 128.91±1.85 mg/L and the lowest is 2.0±0.02 mg/L. 2. 13 drinking waters in 15 samples indicate the Mg concentration. The average concentration is 9.22±11.06 mg/L. the highest is 30.43±0.75 mg/L and the lowest is 0.0 mg/L. 3. 11 drinking waters in 15 samples indicate the F concentration. The average concentration is 0.25±0.33 mg/L, the highest is 1.13±0.04 mg/L and the lowest is 0.01±0.03 mg/L. All samples are satisfied the current drinking water standard, 2 mg F/L.

전북대학교병원 소아치과에 내원한 교정환자 보호자들의 의삭에 관한 설문조사

소유려,백병주,김재곤,양연미,이용훈 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

최근 치의학의 눈부신 발전과 소득의 증가에 따른 일반인의 의식 변화로 외모에 대한 관심도가 높아지고 있다. 본 연구에서는 대학병원에 내원한 동기와 교정치료를 시작하게 된 동기,치료방법 및 치료기간을 파악하여,이를 토대로 보호자와 보다 적절한 의사소통을 위한 정보를 파악하고,보호자들의 교정치료에 대한 기대를 파악하고자 본 연구를 시행하였다. 이를 위해 전북대학교 치과병원 소아치과에 내원한 교정환자의 보호자 150명을 대상으로 조사 연구한 결과 다음과 같은 결론을 얻었다. 1. 본 병원의 소아치과를 찾게 된 이유 중 대학병원이 좋을 것 같아서가 52.1%. 친지나 아는 사람의 권유가 25%. 다른 치과병원의 소개가 16.7%로 나타났다. 2. 내원 전 예상하였던 치료기간 중 2년 이상이 37.5%. 12∼18개월이 12.5%로 나타났다. 3. 교정치료를 받으려는 이유 중 부모가 부정교합을 발견하고 걱정스러워서가 58.3%, 주위사람들의 지적이 12.5%로 나타났다. 4. 소아치과 내원 환자의 치료방법은 구강 내 고정성장치가 41.7%, 가철성장치가 29.2% 구외 장치가 2.1%를 차지했다. 5. 예약 후 치료를 위해 기다리는 시간 중 5∼10분이 39.6%, 15∼30분이 4.1%로 나타났으며,기다리는 시간은 어느 정도까지 괜찮다고 생각하는가에 대해 5∼10분이 60.4%, 15∼30분이 2.1%로 나타났다. Recently, in proportion to the remarkable development of dentistry and income increases it is growing more and more a concern about changed awareness in appearance, In this study, it had a grasp of the purpose for university hospital visiting, the motive of the commencement for orthodontic treatment and a method of the treatment as well as term. Based on these, the aim of this study is to keep more of the information between parent and doctors for mutual understanding and to grasp the characteristics for the needs of orthodontic treatment. In order to conduct researches, there has made a survey of 150 persons among orthodontic patients' parents who visit CBNU hospital, the pediatric dentistry. The study has found the results like these. 1. There was a question about the reason to visit CBNU hospital in the department of pediatric dentistry for orthodontic treatment. 52.1% of respondents, the survey found, were more likely to receive a good medical service. 25% of them were counselled from a relative or an acquaintance. 16.7% of them were recommended by another dental clinic. 2. There was a question about the expected orthodontic treatment period, when at first hospital visiting. 37.5% of the respondents answered that it was a 'more than 2 years', 12.5% of them said 'from 12 months to 18 months'. 3. There was a question about the reason to receive orthodontic treatment. 58.3% of the respondents, the survey found, answered the reason was parents' concern about the malocclusion of their children, 12.5% of them said a the orthodontic problem pointed out by entourages. 4. There was a question about the method of orthodontic treatment for patients who visit the department in pediatric dentistry. 41.7% of the respondents said that it was used as 'an intra-oral fixed appliance', 29.2% of them said 'an intra-oral removable appliance', 2.1% of them said 'an extra-oral appliance'. 5. There was a question about the waiting time for treatment after a dental appointment. 60.4% of the respondents said 'from 5 minutes to 10 minutes', 4.1% of them said 'from 15 minutes to 30 minutes'. There was a question about the extent of an acceptable waiting time. It was answered to 'from 5 minutes to 10 minutes' by 60.4% of them, 2.1% of them said 'from 15 minutes to 30 minutes'.

Solitary mastocytoma on the scalp in a child: a case report

( So Yeon Yun ),( Ha Yeh Rin Koo ),( Jae Yeon Ryu ),( Jin Young Choi ),( Dong Soo Yu ),( Young Bok Lee ) 대한피부과학회 2021 대한피부과학회 학술발표대회집 Vol.72 No.2

Improving microbial inactivation effect for black pepper using intense pulsed light combined with TiO2 photocatalyst

So-Yoon Yee,Na-Yeon Kim,Ju-Yeon Park,Hye-Won Mok,Yu-Gyeong Kim,Bo-Young Seok,Hee-Jeong Hwang,Myong-Soo Chung 한국산업식품공학회 2018 학술대회 및 심포지엄 Vol.2018 No.04

Black pepper (piper nigrium L.) is a spice commonly used but has a problem with microbial control, so it needs non-thermal decontamination method for product quality of dried foods. Intense pulsed light (IPL) technology is a non-thermal method for superficial decontamination of foods to inactivate pathogenic microorganisms by using high peak power and short duration pulses of a broad-spectrum (170-2600 nm) using a xenon lamp. The objective of this study was to reduce total number of bacteria in ground black pepper effectively by combined treatments of IPL and immobilized TiO2 photocatalyst. Self-designed cyclone type of pilot-scaled IPL device (> 5 kg/h) was used, which makes samples to flow cyclonically in a vacuum space longer time rather than moving vertically. Using this device alone, without TiO2 coated, 0.3-0.6 log reductions were achieved under a total energy fluence of 14.85 J/cm2 (DC voltage; 1200, 1800, and 2400 V, pulse duty; 0.5, 2.1, and 3.0 ms, treatment time; 60, 120, 180, 240, and 300 s, frequency; 2 Hz). Subsequently, TiO2-coated quartz plates with different layers between light source and samples were installed to observe the effect of photocatalyst and the efficiency of decontamination was improved slightly. However to increase the effect of the photocatalyst, several factors (TiO2 particle size, TiO2 film thickness and transparency, adhesiveness between quartz and photocatalyst, etc.) need to be concerned additionally. Nevertheless, the application of IPL treatment combined with TiO2 photocatalyst offers a potential of effective non-thermal decontamination method for dealing with powder foods in food industry.

Comparative Analysis of Targeted Phenolic Comopund in Letinula Edodes in Korea by LC-ESI-MS/MS

So Yeon Kim(김소연),Yeon Ju An(안연주),Yu Jin Yang(양유진),Chang Kwon(권창),Shamsuzzaman,Rahimul Hassan,Faruk Ahmed,Ill Min Chung(정일민),Seung Hyun Kim(김승현) 한국약용작물학회 2019 한국약용작물학회 학술대회논문집 Vol.2019 No.1

Regional Comparison of Targeted Phenolic and Fatty Acid Profiling in Agaricus bisporus Mushroom in Korea

So Yeon Kim(김소연),Yeon Ju An(안연주),Yu Jin Yang(양유진),Chang Kwon(권창),Ill Min Chung(정일민),Seung Hyun Kim(김승현) 한국약용작물학회 2018 한국약용작물학회 학술대회논문집 Vol.2018 No.1

A case of solitary nevus lipomatosus superficialis on the scalp

( So Yeon Yun ),( Ji Min Seo ),( Jae Yeon Ryu ),( Jin Young Choi ),( Dong Soo Yu ),( Young Bok Lee ) 대한피부과학회 2021 대한피부과학회 학술발표대회집 Vol.72 No.2

AI, IOT 기술을 활용한 자기계발 스마트 워치 & 어플 ‘MO:TIVE’

김소연 ( So-yeon Kim ),모하연 ( Ha-yeon Mo ),이유영 ( Yu-young Lee ),이예성 ( Ye-sung Lee ),최가현 ( Ga-hyun Choi ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2

‘MO:TIVE’는 AI 및 IoT를 활용하여 자기계발을 촉진하는 모바일 서비스로, 사용자 정보 학습과 정밀한 추천을 제공하며 생성형 AI를 활용한 개인화 조언을 제공한다. 이를 통해 사용자는 스마트 워치를 통해 자투리 시간을 효과적으로 활용하여 자기계발과 삶의 질을 향상을 기대할 수 있으며 지속적인 개선과 학습을 통해 더 나은 사용자 경험을 제공한다.

Prediction of Dispersal Directions and Ranges of Volcanic Ashes from the Possible Eruption of Mt. Baekdu

Seung-Yeon Lee,Gil-Yong Suh,Soo-Yeon Park,Yeon-Su Kim,Jong-Hyun Nam,Seung-Hyun Yu,Ji-Hoon Park,Sang-Jik Kim,Yong-Sun Kim,Sun-Yong Park,Ja-Young Yun,Yu-Jin Jang,Se-Won Min,So-Jung Noh,Sung-Chul Kim,Kyo 한국토양비료학회 2018 한국토양비료학회지 Vol.51 No.1

To predict the influence of volcano eruption on agriculture in South Korea we evaluated the dispersal ranges of the volcanic ashes toward the South Korea based on the possibilities of volcano eruption in Mt. Baekdu. The possibilities of volcano eruption in Mt. Baekdu have been still being intensified by the signals including magmatic unrest of the volcano and the frequency of volcanic earthquakes swarm, the horizontal displacement and vertical uplift around the Mt. Baekdu, the temperature rises of hot springs, high ratios of N₂/O₂ and ₃He/₄He in volcanic gases. The dispersal direction and ranges and the predicted amount of volcanic ash can be significantly influenced by Volcanic Explosivity Index (VEI) and the trend of seasonal wind. The prediction of volcanic ash dispersion by the model showed that the ash cloud extended to Ulleung Island and Japan within 9 hours and 24 hours by the northwestern monsoon wind in winter while the ash cloud extended to northern side by the south-east monsoon wind during June and September. However, the ash cloud may extent to Seoul and southwest coast within 9 hours and 15 hours by northern wind in winter, leading to severe ash deposits over the whole area of South Korea, although the thickness of the ash deposits generally decreases exponentially with increasing distance from a volcano. In case of VEI 7, the ash deposits of Daejeon and Gangneung are 1.31 × 10<SUP>4</SUP> g m<SUP>-2</SUP> and 1.80 × 10<SUP>5</SUP> g m<SUP>-2</SUP>, respectively. In addition, ash particles may compact close together after they fall to the ground, resulting in increase of the bulk density that can alter the soil physical and chemical properties detrimental to agricultural practices and crop growth.

음운론적 단어와 음운론적 단위의 위계성에 대하여

유소연(Yu, So-yeon) 국어국문학회 2017 국어국문학 Vol.0 No.180

음운론적 단위, 발화단위에 대한 인식은 오래 전부터 존재했다. 음운현상을 설명하기 위해서는 음운론적 단위에 대한 이해가 선행되어야 한다. 이에 본고는 음운론적 단위의 위계성을 음운론적 단어를 중심으로 살펴보았다. 음운론적 단위의 구조나 음운론적 단위를 구성하는 요소, 음운론적 단위를 나누는 기준 등에 대한 기존의 연구를 종합적으로 고찰해 ‘음운론적 단어’의 개념을 보완해 보았다. ‘음운론적 단어’는 발화시에 하나의 덩어리로 인식되는 발화단위이며, 내부에 잠재적 휴지를 지니는 요소이다. 또한 음운론적 단위의 위계적인 구조 내에서 음운론적 단어도 정도성에 따른 위계성을 지니는데, 이는 음운현상의 수의적인 실현과 관련된다. This paper studies the hierarchy of phonological units, centering on phonological words and phrases. In this regard, the study touches upon the following three issues. First, the necessity of setting up phonological units are examined. Consideration is put towards whether phonological units can be explained with morphological and syntactic terms, such as ‘words, phrases’. The paper also discusses on which criteria to use when distinguishing phonological units when necessary. Second, the concept of phonological unit is identified. Third, the structure of phonological units is reviewed, focusing on phonological words and phrases. Afterwards, their relations are observed through actual phonological phenomena.