농산물 수요와 공급의 단기 동기화 방안 연구 -시장거래제도별 정보공유를 중심으로-

정승일 ( Seung Il Jung ),송상화 ( Sang Hwa Song ) 한국식품유통학회 2012 食品流通硏究 Vol.29 No.2

In order to minimize the temporary imbalance between supply and demand of agricultural products and the price volatility, it is necessary to study on the matching supply with demand in agricultural products supply chain for the short term. This study also tried to suggest how to match supply of agricultural products and demand for a short term, on the base of analysis the data collected by the survey of the experience of a dearth of the information, the way to obtain information, what information to share, the relation between the quantity of information which the buyers give and the sellers satisfaction. The more information, the more satisfaction of shipping organization. The direct dealing between the sellers(farmers) and the large retailers need to be much activated. To do this, the related system needs to improve as follows;①An action system of agricultural products has protected unspecified sellers in the past by guaranteeing transparency, fairness, and credibility of transaction, but the change of distribution channel represented by large retailers needs to foster large sellers through marketing scale-up and coordination among sellers(farmers). Furthermore, an auction system should be used to find fair prices and give the information of the prices to the participants in the agricultural marketing. ②Sellers` bargaining power should be strengthen through economy of scale of production, joint marketing, and calculation pooling.

내인폐렴막대균안내염의 드문 임상경과 1예

정승일(Seung Il Jung),한지상(Ji Sang Han):양지호(Ji Ho Yang),김도균(Do Gyun Kim) 대한안과학회 2017 대한안과학회지 Vol.58 No.11

목적: 안내염 환자에게서 유리체절제술 이후에 전방염증이 호전과 악화를 수차례 반복하는 드문 경험을 하였기에 이를 보고하고자 한다. 증례요약: 간농양으로 본원 소화기내과에 입원 중인 54세 남자 환자가 2일 전 발생하여 1일 전 심해진 좌안 시력저하를 주소로 진료 의뢰되었다. 전안부 및 초음파 검사를 통한 안저검사에서 좌안 내인성 안내염이 의심되어 초진 당일 유리체절제술 시행 후 topical vancomycin (2.5%)과 ceftazidime (5%)을 점안하며 경과 관찰하였다. 소화기내과에서 혈액배양검사 및 간농양 배양검사 직후 바로 전신적 항생제를 사용하고 있던 환자로 유리체절제술 시에 채취한 전방수 및 유리체 배양검사에는 폐렴막대균이 동정되지 않았지만 혈액배양검사와 간농양 배양검사 모두 폐렴막대균이 동정되어 폐렴막대균에 의한 내인성 안내염으로 확진할 수 있었다. 수술 후 환자는 호전양상을 보이다 수술 후 20일째, 40일째 각각 뿌옇게 보이는 증상과 함께 전방 염증 및 축농이 다시 관찰되어 전방내 항생제 주사치료 및 전방세척술을 시행하였으며 이후 현재까지 추가적인 염증소견 없이 경과관찰 중이다. 결론: 안내염 환자에게서 유리체절제술 이후에 3차례의 전방축농 및 전방염증이 악화되는 소견이 있었으나 전방내 항생제 주사치료및 전방세척술을 통하여 효과적으로 염증조절을 할 수 있었다. Purpose: To report an unusual case of endogenous endophthalmitis in a patient with Klebsiella pneumoniae primary liver abscess. Case summary: A-54-year-old man with diabetes mellitus and liver abscess was referred to us for consultation of visual loss in his left eye for 2 days. On the first examination, the patient’s left visual acuity was hand motion and the left intraocular pressure was 13 mmHg. Vitreous opacity and inflammatory membrane were detected with increased echogenicity using ultrasonography. Vitectomy and intravitreous antibiotic injection were performed under the impression of endogenous endophthalmitis caused by liver abscess on the day of the first visit. Culture revealed Klebsiella pneumoniae from blood and liver abscess. After vitrectomy, the patient showed improvement. However, on the 20th and 40th postoperative days, the patient complained of blurred vision, and inflammation and hypopyon were observed in the anterior chamber. An intracameral antibiotic injection and anterior chamber washing were performed. The patient has not complained of any other symptoms to date. Conclusions: In this patient with endophthalmitis, inflammation and hypopyon in the anterior chamber were evident three times after vitrectomy. Ultimately, the inflammation was effectively controlled by intracameral antibiotic injection and anterior chamber washes. J Korean Ophthalmol Soc 2017;58(11):1301-1306

유전적 요로상피종양, 부신 크롬친화세포종 및 고환 생식세포종양의 유전

정승일(Seung Il Jung) 대한비뇨기종양학회 2011 대한비뇨기종양학회지 Vol.9 No.2

A family history of malignancy has long been recognized as a risk factor for developing cancer. The increased risk can be due to either a shared genetic heritage or a shared environmental exposure. Identifying a hereditary predisposition to a particular malignancy has proven to be a powerful tool to identify genes responsible for not only hereditary tumor syndromes but also sporadic malignancies. The identification of the genes responsible for hereditary urologic tumors has illuminated the molecular cause of many sporadic malignancies and expanded our understanding of cancer. The present review considers the genetics of urothelial tumor, adrenal pheochromocytoma, and testicular germ cell tumor.

먼지센서와 무선 모듈을 이용한 가정에서의 미세먼지 측정 결과

정승일(Seung-Il Jung),이은기(Eun-Ki Lee) 대한전자공학회 2017 대한전자공학회 학술대회 Vol.2017 No.6

LED 2차 광학 시스템의 설계법 개발

정승균,석대일,신화영,이창모,김훈,Jung, Seung-Gyun,Seok, Dae-Il,Shin, Hwa-Young,Lee, Chang-Mo,Kim, Hoon 한국조명전기설비학회 2007 조명·전기설비학회논문지 Vol.21 No.6

Design methods of LED optic system includes point source assumption and imaginary focus approaches. However, these methods make significant error if the position of LED approachs that of optic system. This paper suggests a new design approach that LED is equally divided, light distribution of each division is predicted and confirmed through reverse tracing of light wave, and then each divided segment is separately designed, Using new design method, two kinds of example optic system were designed and light distribution and efficiency of the systems were evaluated. 기존의 LED 광학계의 설계법은 크게 점광원 가정법과 가초점 설계법이 있으나, 이 설계법들은 LED와 광학계간의 거리가 매우 좁아지게 될 경우 큰 오차가 발생하는 단점이 존재하였다. 본 논문에서는 LED를 등간격으로 분할하여 각부분의 배광을 예측하고, 광선의 역추적 기법을 활용하여 이에 대한 결과를 확인한 후 분할된 각 구간에 대하여 세그먼트의 개별적인 설계를 통하여 오차를 감소시키는 새로운 설계법을 제시한다. 설계법의 설명이후에 2종의 예시 광학계를 설계하고 광학 성능 예측 프로그램을 통하여 배광과 광학 효율을 평가하였다.

치위생과와 비보건계열 학과 대학생의 불소함유세치제 사용률

정승일 ( Seung Il Jung ),배광학 ( Kwang Hak Bae ),김진범 ( Jin Bom Kim ),이선미 ( Sun Mi Lee ),김설악 ( Seol Ak Kim ),김영경 ( Young Kyung Kim ),김영희 ( Young Hee Kim ),김지영 ( Ji Young Kim ),김지화 ( Ji Hwa Kim ),남용옥 ( Young 대한예방치과·구강보건학회 2006 大韓口腔保健學會誌 Vol.30 No.4

거리정보 제공 유무에 따른 프로골퍼의 어프로치 정확성 분석

정승일(Jung, Seung-Il),최영철(Choi, Young-Chyul),권태원(Kwon, Tae-Won) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.5

The Purpose of this study is to analyze the effects of approach accuracy whether he/she is conformed with distance information or not while pro-golfer perform approach shot. Subjects, to be selected for the experiment, is involved in KPGA and KLPGA each of 5, respectably. The equipment used in the measurement for getting the data is Trackman Pro, produced by Trackman, Co, Ltd., that it is used to measure the distance they performed. The conclusions are as follows: Firstly, there are significantly different intra group, male and female group whether he/she is provided the information or not about the degree of visual approach accuracy on 45m target.(p<05, p>.05) Also there are significantly different between groups, male and female group about the degree of visual approach accuracy on 45m target.(p<.05) Secondly, there are significantly different intra group, male and female group whether he/she is provided the information or not about the degree of visual approach accuracy on 60m target.(p<.05) Also there are not significantly different between groups, male and female group about the degree of visual approach accuracy on 60m target.(p<.05) Thirdly, there are significantly different intra group, male and female group whether he/she is provided the information or not about the degree of visual approach accuracy on 90m target.(p<.05) Also there are not significantly different between groups, male and female group about the degree of visual approach accuracy on 90m target.(p<.05)

방광암에서 림프절절제술의 임상적 중요성

정승일(Seung Il Jung) 대한비뇨기종양학회 2008 대한비뇨기종양학회지 Vol.6 No.2

오존 폭로가 실내 관엽식물의 생리적 반응에 미치는 영향

정승일(Jung Seung-Il),김민지(Kim Min-Ji),김판기(Pan-Gi Kim),이재천(Jae-Cheon Lee),손기철(Son Ki-Cheol) 한국원예학회 2003 한국원예학회 학술발표요지 Vol.2003 No.5

국민건강영양조사(2008-2012) 자료를 이용한 소아의 근시 진행 경향에 대한 분석

정승일(Seung Il Jung),한지상(Ji Sang Han),권지원(Ji Won Kwon),김도균(Do Gyun Kim),김대희(Dae Hee Kim),임현택(Hyun Taek Lim) 대한안과학회 2016 대한안과학회지 Vol.57 No.9

목적: 국내 5세에서 20세까지 소아의 굴절 이상의 정도와 분포, 연령대별 굴절 변화의 추이를 알아보고자 했다. 대상과 방법: 본 연구는 2008년부터 2012년까지 진행된 국민건강영양조사에서 5세부터 20세까지의 대상자 7,695명의 자료를 이용하였다. 조절마비를 하지 않은 상태에서 자동굴절검사기로 측정한 값을 이용하여 구면렌즈대응치를 구하였고, 얻어진 양안 굴절값의 평균을 이용하였다. 굴절값을 토대로 백분위수와 평균을 구하였고, 굴절 이상의 정도를 정시, 경도, 중등도, 고도로 분류하였다. 이를 토대로 전체 대상자와 각 연령별 굴절 이상 정도와 분포를 확인하였고, 연령별 대상자의 굴절값 변화의 추이를 분석하였다. 결과: 전체 대상자 굴절값의 평균은 -1.82디옵터였으며, 5세인 대상자의 평균 굴절값 +0.04디옵터부터 20세 대상자의 평균 굴절값 -2.88디옵터까지 연령이 증가할수록 근시가 증가하는 양상을 보였다. 전체 대상자의 66.2%가 근시를 보였으며, 5세 대상자 중 18.5%만이 근시였으나, 20세 대상자의 경우는 84.3%가 근시를 보였다. 5세에서 20세까지 근시 진행 속도는 연평균 -0.19디옵터였으나, 7-9세까지는 연평균 -0.46디옵터의 변화를 보여 근시 진행 속도가 다른 연령대에 비해 가장 빨랐다. 16세까지는 근시가 계속 증가하는 추세를 보였으나, 이후로는 유지되는 경향을 보였다. 결론: 5세에서 20세까지의 국내 소아 대상자의 근시 비율은 높다. 근시 진행이 빠른 연령대는 7-9세경이었으며, 16세경 이후로는 근시 변화가 적었다. Purpose: To investigate the degree, distribution, and change in refractive error in the pediatric population 5 to 20 years of age. Methods: We collected data from 7,695 subjects aged 5 to 20 years who participated in the Korean National Health and Nutrition Examination Survey from 2008 to 2012. Non-cycloplegic refractive error was measured using an autorefractor. Mean spherical equivalent calculated from the measured refractive error data in both eyes was used. The subjects were categorized into mild, moderate, or high refractive abnormality or emmetropia according to the degree of refractive error. The degree and distribution of refractive error in all subjects and age-matched subjects were analyzed. The change in refractive error was analyzed according to age. Results: Mean refractive error of the study subjects was -1.82 diopters. As subject age increased, myopia increased from +0.04 diopters at 5 years of age to -2.88 diopters at 20 years of age. Myopia was observed in 66.2% of subjects and accounted for only 18.5% of the 5-year-old subjects, but increased to 84.3% in the 20-year-old subjects. The rate among all study subjects was -0.19 diopters per year. The greatest myopic progression rate (-0.46 diopters per year) among all age groups was in subjects 7 to 9 years of age. Myopic progression continued until 16 years of age. Conclusions: The ratio of pediatric myopia subjects between 5 and 20 years of age was high in Korea. The rate of myopic progression was the fastest in subjects 7 to 9 years of age. After 16 years of age, myopic change paused.