대구지역의 미가와 그 추이: 1743~1905년

정진영 부산경남사학회 2020 역사와 경계 Vol.114 No.-

This study aimed to construct basic data about long-term rice price information, based on the records produced by the Gyeongju Choi clan in Daegu. The rice price information to be provided in this study was collected from various data continuously produced by one family clan living in one region for more than 160 years from approximately the mid-18th century to the early 20th century (1743 ~ 1905). The Gyeongju Choi clan's rice price information could be used as base line data to analyze various aspects of changes with regard to the price of rice such as short-term fluctuation, price cycle, mid and long-term price trends. However, only general trends were looked into in this study. In the short term, rice price fluctuated significantly almost every year, which was likely due to whether there was a good or bad harvest in a particular year. Overall, rice price had been around 2 nyangs for about 100 years, spanning from the mid-18th century to the mid-19th century, and then surged in the 1850s, more specifically from 1856. The trend of rice price rise in the late 50s of the 19th century was further accelerated through the period when ports were opened to overseas countries in the Joseon Dynasty. The mid-term fluctuations, which generally refer to price rise periods and price decline periods that lasted more than 10 years, in the region were not significantly different from those of the Youngam region where four periods of fluctuation were found. With that fact in mind, the rice price trends in Youngam and Daegu were examined through 11 yearly moving averages. As a result, the rice prices of Daegu were slightly higher than those of Youngam, but rice prices in both regions presented very similar trends (the period of the 80s of the 19th century cannot be commented on as there are no sources of rice price data for this period). 이 연구는 대구 경주최씨가의 자료를 통해 장기간에 걸친 미가정보에 대한 기초데이터를 구축하는 것이다. 이 연구에서 제공하고자 하는 미가정보는 대략 18세기 중반에서 20세기 초반에 이르기까지(1743~1905) 160여 년간 한 지역, 한 가문에서 장기 지속적으로 작성된 다양한 자료에서 얻어진 것이다. 그러나 최씨가의 미가자료는 용하기 상의 ‘작전가’이다. 이들 작전가는 대부분 시장가격을 그대로 반영한 것이 아니라 이를 참조한 문서상의 교환비인 것으로 보인다. 이 같은 문제는 오직 최씨가에만 국한된 것은 아니지만, 이 연구에서 제시되는 미가의 성격 역시 이 점을 크게 염두에 두면서 검토되어야 할 것이다. 최씨가의 미가자료는 단기변동, 순환, 중·장기추세 등 미가변동의 다양한 측면을 분석하는데 기초로 활용될 수 있을 것이다. 그러나 여기서는 그 대강의 추세만을 살펴보았다. 단기적으로는 거의 매년 크게 변화하고 있다. 주로 그 해의 풍흉에 따른 결과일 것으로 보인다. 전반적으로는 18세기 중반부터 19세기 중반에 이르기까지 약 100여 년간 2냥 전후의 가격추세를 보이다가 19세기 50년대, 보다 구체적으로는 1856년부터 크게 상승추세를 나타내고 있다. 19세기 50년대 후반의 상승추세는 개항기를 거치면서 더욱 급격하게 상승하고 있는 것으로 보인다. 대체로 10년 이상 지속된 상승기와 하강기를 말하는 중기변동은 네 번의 상승기와 하강기를 발견하였던 영암지역의 미가 변동과 대체적인 추세에 있어서 크게 다를 바 없었다. 이 같은 사실을 염두에 두고 이제 영암과 대구의 미가추세를 11개년 이동평균으로 살펴본 결과, 두 지역의 미가는 영암에 비해 대구의 미가가 조금 더 높게 형성되어 있는 가운데 자료가 결락된 19세기 80년대를 제외하면 거의 비슷한 추세를 보이고 있었다.

분사조건에 따른 가솔린 직접분사용 다공 분사기에서의 LPG 분무특성

정진영,오희창,배충식 한국분무공학회 2014 한국분무공학회지 Vol.19 No.1

Liquefied petroleum gas (LPG) is regarded as an alternative fuel for spark ignition engine due to similar or even higheroctane number. In addition, LPG has better fuel characteristics including high vaporization characteristic and low carbon/hydrogen ratio leading to a reduction in carbon dioxide emission. Recently, development of LPG direct injection systemstarted to improve performance of vehicles fuelled with LPG. However, spray characteristics of LPG were not well understood,which is should be known to develop injector for LPG direct injection engines. In this study, effects of operation conditionincluding ambient pressure, temperature, and injection pressure on spray properties of n-butane were evaluated andcompared to gasoline in a multi-hole injector. As general characteristics of both fuels, spray penetration becomes smaller withan increase of ambient pressure as well as a reduction in the injection pressure. However, it is found that evaporation of nbutanewas faster compared to gasoline under all experimental condition. As a result, spray penetration of n-butane wasshorter than that of gasoline. This result was due to higher vapor pressure and lower boiling point of n-butane. On the otherhand, spray angle of both fuels do not vary much except under high ambient temperature conditions. Furthermore, sprayshape of n-butane spray becomes completely different from that of gasoline at high ambient temperature conditions due toflash boiling of n-butane.

온/오프라인 민원행정 서비스의 사용실태를 고려한 민원서식의 UX디자인 연구

정진영 사단법인 한국브랜드디자인학회 2017 브랜드디자인학연구 Vol.- No.41

The Effects of Outside Board on Firm Value in the Emerging Market from the Perspective of Information Transaction Costs

정진영,조성욱 한국증권학회 2012 Asia-Pacific Journal of Financial Studies Vol.41 No.2

This paper examines whether the problem of high information asymmetry lowers the positive impact of board independence on firm value. Independent directors are outside directors who have never had business and professional ties with the firm. We adopt various proxies for information transaction costs from the market microstructure literature and traditional measures, such as firm size, firm age, number of analyst reports, governance scores, credit ratings, and institutional ownership, to see how they interact. Using data on publicly listed firms and their directors between 1999 and 2006 in Korea, we find that independent directors are correlated with higher corporate value when the firm has lower information transaction costs. The results suggest that the monitoring role of independent directors is limited when transferring firm-specific information is costly.

산학연 논단 : 친환경농업의 필연성과 현황 및 전망

정진영 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2007 식품저장과 가공산업 Vol.6 No.2

식도 평활근종증이 동반된 Alport 증후군 1례

정진영,김철민,임연정,김자형,유종우,최보화,홍수종,박영서,Jung, Jin Young,Kim, Cheol-Min,Lim, Yean Jung,Kim, Ja Hyung,You, Chong Woo,Choi, Bo-Hwa,Hong, Soo-Joung,Park, Young Seo 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.9

We report a case of Alport syndrome associated with esophageal leiomyomatosis, presenting as recurrent pneumonia. A 5-year old girl who had a history of cataract visited the out patient clinic with a complaint of recurrent wheezing and respiratory difficulty which had started five months previously. Chest magnetic resonance image(MRI) and esophagography, checked on the suspicion of achalasia, revealed esophageal leiomyomatosis and renal biopsy revealed Alport syndrome. In the pediatric population, this tumor is a rare cause of dysphagia and is often misdiagnosed as an esophageal motility disorder. Although a number of Alport syndrome associated with leiomyomatosis were reported in the literature, this is a second case report presented with recurrent pneumonia in Korea.

관절와 상완관절 불안정증의 관혈적 치료

정진영 대한견주관절의학회 2008 대한견주관절학회 학술대회논문집 Vol.2008 No.11

Migraine-like Headache in a Patient with Complement 1 Inhibitor Deficient Hereditary Angioedema

정진영,김만호 대한의학회 2012 Journal of Korean medical science Vol.27 No.1

We report on an angioedema patient with a genetic defect in complement 1 inhibitor,manifesting migraine-like episodes of headache, effective prophylaxis with Danazol, and triptan for a treatment of acute clinical episode. The patient was 44-yr-old Korean man with abdominal pain and headache, who was brought into the Emergency Department of Seoul National University Hospital, Seoul. He suffered from frequent attacks of migrainelike headache (3-7 per month), pulsating in nature associated with nausea. Severities were aggravated by activity and his headache had shown recent progression with abdominal pain. No remarkable findings were observed on radiologic examination, brain magnetic resonance images and intracranial and extracranial magnetic resonance angiography. Danazol 200 mg every other day was subsequently used. Following administration of Danazol, symptoms showed improvement and the patient was discharged. While taking Danazol, the migraine-like episodes appeared to be prevented for about 2 yr. At the eighth month, he suffered a moderate degree of migraine-like headache; however, administration of naratriptan 2.5 mg resolved his problem. A case of genetic defect of C1-INH deficiency presented with headache episodes, and was controlled by Danazol and triptan. It suggests that pathogenic mechanism of headache in hereditary angioedema may be mediated by the neurogenic inflammatory-like physiology of migraine.

성인 ADHD 성향군의 회귀억제와 반응억제 결함

정진영,곽호완,장문선 한국심리학회 2008 한국심리학회지 일반 Vol.27 No.1

This study examined inhibition of return(IOR) and response inhibition deficits in adults with ADHD tendency using three web-based neuropsychological experiments. Specifically, using an IOR task in Exp. 1., we tested whether the amount of IOR in adults with ADHD would be decreased compared to control group. In Exp. 2 and 3, we also examined whether adults with ADHD tendency would show deficits in response inhibition compared to control group, using a continuous performance test(CPT) and a Stroop task. As results, 1) we found that ADHD tendency group showed less IOR compared to control group. 2) ADHD tendency group showed less response accuracy than control group. We then compared ADHD tendency group with controls performance in the CPT task. As a result, the ADHD tendency group showed more commission errors than the control group. Finally, the amount of stroop interference in Stroop task was not significant, while there was an interesting three-way interaction among the stroop, IOR and group conditions. These results suggest that ADHD tendency group had difficulties in efficient employment-deployment of attention, as shown in the IOR task. Moreover, the group difference in commission error obtained in CPT suggests that adults with ADHD tendency have deficits in response inhibition. Taken together, the result of the present study may be useful in understanding the characteristic of specific symptoms in adults with ADHD tendency. Further research is needed to generalize these results to clinically diagnosed patients with ADHD. 본 연구에서는 세 가지 웹-기반 실험과제를 이용하여 성인 ADHD 성향군의 회귀억제 결함과 반응억제 결함을 검토하고자 하였다. 구체적으로, 회귀억제과제를 실시한 후 통제군과 비교하여 성인 ADHD 성향군이 회귀억제력에서 결함이 있는지를 알아보고자 하였다. 그리고 연속수행과제와 스트룹과제를 실시한 후 통제군과 비교하여 ADHD 성향군이 반응 억제능력과 지속적 주의에서도 결함이 있는지를 알아보고자 하였다. 회귀억제과제에서 ADHD 성향군과 통제군의 반응시간을 비교한 결과, ADHD 성향군은 통제군에 비해 더 적은 회귀억제량을 보였으며, ADHD 성향군은 통제군에 비해 정반응률이 유의미하게 낮았다. 연속수행과제에서 ADHD 성향군과 통제군의 수행을 비교한 결과, ADHD 성향군이 통제군보다 오경보의 수가 더 많았으나 누락오류 수와 반응시간에서는 유의한 차이가 없었다. 마지막으로 스트룹과제 수행결과, 스트룹 간섭량과 정반응률에서 집단 간의 차이는 유의미하지 않았으나, 스트룹 간섭량 패턴에서 ADHD 성향군과 통제군의 패턴이 다르게 나타났다. 이러한 결과들을 종합하면, ADHD 성향군이 효율적인 주의억제와 반응억제를 실행하는데 어려움이 있고, 충동적이며 지속적인 주의를 유지하는 데 결함이 있는 것으로 생각된다. 본 연구의 결과들을 기초로, 성인 ADHD 성향군의 주의, 반응억제 등의 세부증상의 특성을 이해하는데 유용할 수 있고 이를 바탕으로 ADHD 성인을 진단하는 지표들을 마련하는 데 도움이 될 것으로 생각된다. 마지막으로, 향후 임상표본을 대상으로 본 연구 결과를 일반화시키기 위한 연구가 필요할 것으로 생각된다.

상완골 인공삽입물의 경간각과 수술 술기가 정상 견관절 복원에 미치는 영향

정진영,Joseph P.Iannotti 대한견주관절의학회 2009 대한견주관절학회 학술대회논문집 Vol.2009 No.5