위내시경 (胃內視鏡) 검사 2000예에 대한 통계적 고찰

정준모,정극수 ( Joon Mo Chung,Keuk Soo Chung ) 대한소화기학회 1973 대한소화기학회지 Vol.5 No.2

Some clinical data obtained from 2, 000 cases of gastrofiberscopy done during over 5 years and 5 months from Jan., J 968 to June, 1973 at the Department of Gastroenterology of this university hospiteil were as fallows. 1. Among total 2, OQQ cases, 1, 395 was male and 605 was female. And about 54 of the cases belong.', to the age groups of 5 th and 6 th decades. 2. The most ireauent athology of the stomach was carcinoma (p2 4 I' Lch ave fp]Jp'eg by primary chronic gastritis (18. 3g), benign gastric ulcer (14. 5pg!, elevated lesion (2 9,) etc. in incidence. 3 In gastric carcinoma the highest number was in 6 th decade. So-called eariy cancer of t'.ie stomach was found in 21 cases which is 22. 3,y of 9J cases who had gastrofiberscopy and gastric surgery during the study period. I%fass was palpable in epigastriur.n in 20. Lro of total gastric carcinoma cases. 4. The incidence of primary chronic gastritis was 34. 8,Z in average and it increased with the aging to 50,y in 6 th decade from 20 of 3 rd decade. 5. The peak incidence of benign gastric ulcer was in 5 th and 6 th decades and the major complications of massive bleeding, pyloric stenosis and perforation was seen in .t 3, S and lpy of cases respectively.

소화성궤양예에 (消化性潰瘍例) 대한 Madecassol 의 사용경험 (使用經驗)

정준모,정극수 ( Joon Mo Chung,Keuk Soo Chung ) 대한소화기학회 1981 대한소화기학회지 Vol.13 No.1

A study that the efficacy of the asiaticoside to the patients who had peptic ulcer or gast- ritis was performed. The asiaticoside 2 tablets (20mg), tid, after meal and aluminium hydroxide gel were given to 9 gastric ulcer, 15 duodenal ulcer, 4 gastro duodenal ulcer, and 2 gastritis patients. The results were summarized as follow. The healing rate in peptic ulcer was 25. 0%, 62. 5%, 81. 2% and 90. 6% after 4, 6, 8, and 12 weeks respectively and in varioloid gastritis remarkable improvement was obtained after 6 weeks. 2) The healing rate was better in female than male. 3) No. side effects were noted by oral administration, but complained the pain on injected site following I.M. injection in most cases in whom only one case was stopped.

화가로서의 문신 연구

정준모(Chung, Jun-mo) 인물미술사학회 2006 인물미술사학 Vol.- No.2

형상기억합금을 이용한 회전공구 클램핑 장치 구현

정준모(J. M. Chung),신우철(W. C. Shin),박종권(J. K. Park),이동주(D. J. Lee) 한국생산제조학회 2008 한국생산제조학회지 Vol.17 No.1

This paper presents the construction of micro tool clamping device using a Ni-Ti shape memory alloy(SMA) ring. Clamping force of the device is produced by elastic force of the SMA reverted to its original shape in normal temperature. Phase transformation of the SMA was realized by temperature control using a peltier element. Prototype of the SMA tool clamping device was fabricated and examined its clamping force and clamping/unclamping operation.

소나무와 일본잎갈나무의 연륜생장과 기후 요소와의 상관관계 분석 및 생장예측

정준모 ( Junmo Chung ),김현섭 ( Hyunseop Kim ),김미숙 ( Meesook Kim ),전영우 ( Yongwoo Chun ) 한국임학회 2017 한국산림과학회지 Vol.106 No.1

본 연구는 소나무(Pinus densiflora)와 일본잎갈나무(Larix kaempferi)의 연륜생장과 기후 요소와의 관계를 분석하고, 각 수종별 연구지역을 기후군집으로 분류하여 군집별 연륜기후학적 모델을 개발하였다. 또한 기후변화에 따른 연륜생장 변화를 RCP 기후변화 시나리오와 연륜기후학적 모델을 이용하여 예측하였다. 군집분석을 통한 소나무와 일본잎갈나무의 기후군집은 각각 4개로 분류되었다. 각 군집별 연륜기후학적 모델은 단계적 회귀분석으로 표준화된 잔차연대기와 군집별 기후변수를 이용하여 작성하였다. 소나무의 연륜기후학적 모델에는 각 4개씩의 기후변수가 사용되었고 R²는 0.38∼0.58로 나타났다. 일본잎갈나무 연륜기후학적 모델에는 2∼5개의 기후변수가 사용되었고 R²는 0.31∼0.43으로 분석되었다. 수종별 연륜생장변화 예측은 RCP 4.5와 RCP 8.5 두 개의 기후변화 시나리오를 이용하였다. 소나무 기후군집별 연륜생장예측은 백두대간 산악지역인 군집 4에서 연륜생장이 증가하였고 평균기온이 높은 군집 2와 군집 3에서는 연륜생장이 감소하였다. 일본잎갈나무는 월평균 최저기온이 낮은 군집 1과 평균기온이 높은 군집 2에서는 기후변화가 진행됨에 따라 연륜생장이 감소하였고, 동부해안지역인 군집 3과 해발고가 높은 지역인 군집 4에서는 연륜생장이 유지되었다. 본 연구의 결과는 소나무와 일본잎갈나무의 기후변화에 따른 연륜생장의 변화 예측에 필요한 유용한 정보로 활용될 수 있을 것으로 기대된다. This study was conducted to analyze the relationship among climatic factors and radial growth of Pinus densiflora and Larix kaempferi in South Korea. To determine the climate-growth relationship, cluster analysis was applied to group surveyed regions by the climatical similarity, and a dendroclimatological model was developed to predict radial growth for each climate group under the RCP 4.5 and RCP 8.5 scenarios for greenhouse gases. The cluster analysis showed four climatic clusters (Cluster 1~4) from 10 regions for P. densiflora and L. kaempferi. The dendroclimatological model was developed through climatic variables and standardized residual chronology for each climatic cluster of P. densiflora and L. kaempferi. Four climatic variables were used in the models for P. densiflora (R² values between 0.38 to 0.58). Two to five climatic variables were used in the models for L. kaempferi (R² values between 0.31 to 0.43). The growth simulations with two RCP climate-change scenarios(RCP 4.5 and RCP 8.5) were used for growth prediction. The radial growth of the Cluster 4 of P. densiflora, the mountainous region at high elevation, tend to increase, while those of cluster 2 and 3 of P. densiflora, the region of the hightest average temperature, tends to decrease. The radial growth of the Cluster 1 of L. kaempferi the region of the lowest minimum temperature, while that of Cluster 2, the region of the highest average temperature, tends to decrease. The radial growth of Cluster 3 of L. kaempferi, the region in the east coast and Cluster 4, the region at high elevation, tends to hold steady. The results of this study are expected to provide valuable information necessary for predicting changes in radial growth of Pinus densiflora and Larix kaempferi caused by climate change.

벌채 유형별 일본잎갈나무 천연 치수의 발생 및 생장특성 분석

정준모 ( Junmo Chung ),김현섭 ( Hyunseop Kim ) 한국산림과학회(구 한국임학회) 2020 한국산림과학회지 Vol.109 No.4

본 연구는 일본잎갈나무 천연갱신 치수의 생장특성을 분석하여 현장 적용 가능한 갱신 방법을 제안하기 위해 수행 되었다. 이를 위해 경기도 가평과 경상북도 봉화에 모수작업과 개벌작업을 실시하여 시험지를 조성하고, 종자 유입, 천연 치수의 발생과 생장 특성을 분석하였다. 그 결과 갱신유형별 종자 낙하량은 보잔목작업, 모수작업, 개벌작업 순으로 많았고, 치수 발생율은 처리구(벌채, 지면긁기)가 평균 2.4%, 무처리구 0.3%로 처리구가 무처리구에 비해 8.0배 많았다. 처리구의 갱신 1년차 6월의 치수량은 약 47만본/ha이었고 갱신 3년차 10월의 치수량은 약 78천본/ha이었으며, 치수의 평균 크기는 근원경 6.5 mm, 수고 50.4 cm이었다. 이에 따라 천연갱신에 의한 일본잎갈나무 후계림 조성은 종자결실과 낙하 시기에 맞추어 벌채와 지면긁기를 실시하면 성공 가능성이 크고, 일본잎갈나무의 빠른 생장을 고려하면 효과적인 갱신기술이 될 것으로 판단된다. We analyzed the growth characteristics of naturally regenerated seedings of Larix kaempferi in order to propose a field-applicable regeneration method. Experimental sites were established at Gapyeong in Gyeonggi-do and at Bonghwa in Gyeongsangbuk-do. We analyzed seed inflow features, occurrence, and growth characteristics of natural seedlings for three years. The reserved seed-tree site producedthe greatest number of inflow seeds and followed by seed-tree site and clear-cut site. In addition, the reserved seed-tree method was found to be more efficient than other methods in evenly scattering seeds. The rate of seedling occurrence at treatment sites (e.g., harvesting and scratching) was 2.4%, which is 8.0 times higher than the seedling occurrence (0.3%) at the non-treatment sites. There were approximately 470,000 seedlings per hectare at the treatment sites in June of the first year after regeneration and approximately 78,000 seedlings per hectare in October of the third year. The average diameter of the root collar of the seedlings in the third year was 6.5 mm, and the average height of the seedlings was 50.4 cm. These results indicate that it is possible to create a secondary forest of L. kaempferi by natural regeneration if harvesting and scraping are implemented during seed fructification. Considering the rapid growth of L. kaempferi shown in this study, the proposed method would be an efficient reforestation technique.

반복 시행한 상부소화관 내시경 검사례에 대한 고찰

정준모(Joon Mo Chung),최용환(Yong Hwan Choi) 대한소화기학회 1983 대한소화기학회지 Vol.15 No.1

N/A A follow up study was done in 451 patients who had taken repeated upper gastrointestinal endoscopy at Kyungpook National Univerity Hospital and the following results were obtained. 1) Among 451 patients, male were 384(85. 1%) and female were 67(14. 9%), The lesions observed were gastric ulcer, duodenal ulcer, chronic gastritis and stomach cancer in order of frequency. 2) Endoscopy was dione twice in 320 cases and the most important reasons for repeated endoscopy was to observe the process of healing. The interval between repeated endoscopy in the patients with gastric ulcer was 50.3 days and 80.6 days in those with gastritis. 3) In repeated endoscopic examination, same diangnosis was obtained in 407 cases(90.2%). In 16 (7.3%) of 220 cases of gastric ulcer and 3(9.4%) Of 32 stomach cancers, the initial diagnosis was missed. During the follow up study, one case of apparent chronic gastritis was proved to be stomach cancer. We conclude that much attention is needed in the evaluation of even minute or simpie lesions.

잣나무 연륜생장과 기후요소와의 상관관계 분석 및 생장예측

정준모 ( Junmo Chung ),김현섭 ( Hyunseop Kim ),이상태 ( Sangtae Lee ),이경재 ( Kyungjae Lee ),김미숙 ( Meesook Kim ),전영우 ( Yongwoo Chun ) 한국농림기상학회 2015 한국농림기상학회지 Vol.17 No.2

본 연구는 잣나무를 대상으로 연륜생장과 기후와의 관계를 구명하기 위해 군집분석을 통해 기후 군집을 분류하였고 기후인자에 의해 연륜생장을 예측할 수 있는 생장모델을 개발하여 기후변화 시나리오 RCP 4.5와 RCP 8.5를 이용하여 연륜생장의 변화를 예측하였다. 연륜기후학적 모델은 잣나무 기후군집별 기후변수와 표준화된 잔차 연대기를 이용하여 개발하였다. 개발된 생장지수 추정식에는 2~4개의 기후변수가 사용되었고 결정계수는 0.35~0.49의 범위에 있는 것으로 분석되었다. 잣나무 기후군집별 생장예측은 두 개의RCP 기후변화 시나리오를 이용해 예측되었다. 해발고도가 높은 곳에 위치한 군집 2와 군집 3에서는 연륜 생장이 증가하였지만 대조적으로 해발고도가 낮은 지역에 위치한 군집 1에서는 연륜생장이 감소할 것으로 예측되었다. 따라서 잣나무는 한대수종이지만 일정범위내의 기온 상승 조건에서는 연륜생장이 증가하는 것으로 평가되었다. This study was conducted to analyze the relationship among climatic factors and radial growth of Pinus koraiensis in South Korea. To determine climate-growth relationships, cluster analysis was applied to group climatically similar surveyed regions, and dendroclimatological model was developed to predict radial growth for each climate group under the RCP 4.5 and RCP 8.5 scenarios for greenhouse gases. The dendroclimatological models were developed through climatic variables and standardized residual chronology for each climatic cluster of P. koraiensis. 2 to 4 climatic variables were used in the models (R2 values between 0.35~0.49). For each of the climatic clusters for Pinus koraiensis, the growth simulations obtained from two RCP climate-change scenarios were used for growth prediction. The radial growth of the Clusters 2 and 3, which grow at high elevation, tend to increase. In contrast, Cluster 1, which grows at low elevation, tends to decrease with a large difference. Thus, the growth of Pinus koraiensis, which is a boreal species, could increase along with increasing temperature up to a certain point.

각종 간질환에서 High - Density Lipoprotein -Cholesterol 에 대하여

정준모(Joon Mo Chung),최용환(Yong Hwan Choi),김대환(Dae Whan Kim) 대한소화기학회 1984 대한소화기학회지 Vol.16 No.1

N/A For study whether there is any relationship between high-density lipoprotein cholesterol (HDL-C) level and various liver diseases, authors examined plasma total cholesterol, HDL-C and the ratio of total cholesterol and HDL-C in 51 patients with various liver diseases and 80 normal controls. The following results were obtained. 1) In 10 cases of acute viral hepatitis, the mean plasma levels of total cholesterol showed unremarkable change but decreased in that of HDL-C and the ratio of total cholesterol and HDL-C to normal controls was increased(p<0.01) 2) In 23 cases of liver cirrhosis, plasma levels of total cholesterol and HDL-C were decreased and the ratio between the level of cholesterol and HDL-C was increased. Although in the cases of well compensated liver cirrhosis, both plasma levels of cholesterol and HDL-C disclosed unremarkable changes, but the ratio between both was increased significantly. So these findings suggest that the ratio between the level of plasma cholesterol and HDL-C may be a certain guide in the diagnosis of inactive liver cirrhotic cases which are sometimes have somewhat difficulty in diagnosis. 3) There are no significant changes in chronic active hepatitis.

일본잎갈나무 천연갱신지의 종자 결실 및 벌채 유형별 종자 비산 특성

정준모 ( Junmo Chung ),김현섭 ( Hyun Seop Kim ),정상훈 ( Sanghoon Chung ) 한국산림과학회 2021 한국산림과학회지 Vol.110 No.3

본 연구는 일본잎갈나무 인공림에서 천연하종갱신을 이용한 후계림 조성 방법을 제안하고자 수행되었다. 이를 위해 2016년 경기도 가평에 모수작업과 개벌작업을 실시하여 시험지를 조성하고, 2014년에 조성된 경상북도 봉화의 시험지와 함께 천연갱신지의 종자결실 및 종자낙하 특성을 분석하였다. 그 결과, 결실이 좋은 해에 Ⅴ영급 일본잎갈나무의 개체 목당 종자 수는 690,340립이며, 모수가 ha당 25본인 일본잎갈나무 천연갱신지에서는 ha당 1,380만립의 종자가 결실되는 것으로 추정되었다. 종자의 비산은 9월부터 시작되었으며, 11월까지 낙하된 종자의 발아율은 종자품질 기준인 40%를 넘는 것으로 나타났다. 갱신유형별 종자 낙하량은 보잔목작업, 모수작업, 개벌작업 순이었고, 보잔목작업이 종자의 균등한 비산에 유리한 것으로 나타났다. 따라서 일본잎갈나무의 천연갱신을 위한 벌채와 갱신상 조성 시기는 종자가 비산하는 9월 이전이 효과적이고, 보잔목작업이 균일한 종자공급에 유리한 방법인 것으로 판단된다. This study proposed a field-applicable natural regeneration method using natural seeding to afforest a secondary growth forest after felling in Larix kaempferi plantations. In 2016, an experimental site was established usingseed- tree and clear-cutting methods in Gapyeong, Gyeonggi-do, South Korea. Characteristics of seed fructification and inflow in the natural regeneration site were analyzed along with an experimental site in Bonghwa, Gyeongsangbuk-do, which was established in 2014. As a result, the number of seeds per individual tree of V age class L. kaempferi was 690,340 seeds in a good year, with an estimated 13.8 million seeds per ha fruited in natural regeneration sites of L. kaempferi with 25 seed-trees per ha. Seed dispersal began in September and germination rates of seeds dispersed until November were greater than 40%. Reserved seed-tree sites showed the highest amount of seed inflow, followed by the seed-tree site and clear-cut site in descending order. The reserved seed-tree method performed better than other methods for evenly scattering seeds. Therefore, the timing of logging and seedbed generation for natural regeneration of L. kaempferi is estimated to be most effective before September when seeds are purposefully scattered using the reserved seed-tree method as an effective method for uniform seed supply.