Compact CNS shear box를 활용한 모의 절리암석시료의 정적 전단 거동에 관한 연구

김한림,민경조,김경규,김영준,윤경재,양주석,배상호,조상호 한국암반공학회 2023 터널과지하공간 Vol.33 No.6

본 연구에서는 절리면 암석 시료에 대한 직접 전단시험을 수행하기 위해 새로 고안된 Compact CNS shear box의 성능과 적용 가능성에 대해 조사하였다. 정적 CNS 절리면 직접 전단시험은 인공적으로 거칠기를 생성한 절리 암석을 대상으로 실시하였으며 절리면 거칠기 계수 및 초기 수직응력 조건을 변화시키면서 수행하였다. 또한, DIC 분석을 통해 변위 데이터 검증 및 파괴 패턴을 관찰하였고 실험으로부터도출된 전단 특성들을 기존에 연구되었던 전단 거동 예측 모델들과 비교분석하였다. 그 결과 기존의 특정 경험적 전단 거동 예측 모델과 높은 상관관계를 나타내는 것을 확인하였으며 전단 거동 특성이 파괴패턴과 관련이 있을 가능성에 대해 고찰하였다. 결론적으로, 절리면 전단 특성에 대한 데이터를 제공하는데 있어서 CNS 전단 박스의 적용 가능성과 효과를 입증하였다. In this study, the effectiveness and applicability of a newly designed Compact CNS shear box for conducting direct shear tests on jointed rock specimens were investigated. CNS joint shear tests were conducted on jointed rocks with Artificially generated roughness while varying the fracture surface roughness coefficient and initial normal stress conditions. In addition, displacement data were validated by Digital image correlation analysis, fracture patterns were observed, and comparative analysis was conducted with previously studied shear behavior prediction models. Furthermore, the accuracy of the displacement data was confirmed through DIC analysis, the fracture patterns were observed, and the shear properties obtained from the tests were compared with existing models that predict shear behavior. The findings exhibited a strong correlation with specific established empirical models for predicting shear behavior. Furthermore, the potential linkage between the characteristics of shear behavior and fracture patterns was deliberated. In conclusion, the CNS shear box was shown to be applicable and effective in providing data on the shear characteristics of the joint.

조생온주에 있어서 지엽 및 과실의 형질의 변이정도와 상관관계

김한림 제주대학교 1985 논문집 Vol.20 No.-

This study was conducted to make clear the environmental variation of leaf, branch and fruit characters and the relationships between them in Citus unshiu Mar var. poraecox Tanaka planted on the citrus orchard of Cheju university The results obtained are summarized as follows; The total fruit weight per branch had a high coefficient of variability but there were low C. V. in the fruit length, the fruit diameter, the number of segments and the soluble solid. The number of flowers was highly correlated with the numbers of old leaves and the branch nodes. and not with the other characters The soluble solid and the number of fruits per branch had significant correlations with the branch diameter. The total and the average weights of fruits were highly correlated with all of the leaf and the branch characters, that is. increasing the leaf and the branch characters exerted a effect on the citrus yield.

麥酒麥에 있어서 實用形質의 遺傳力 遺傳相關 및 表現型相關에 관한 硏究

金翰琳 제주대학교 1978 논문집 Vol.10 No.-

This study was intended to estimate heritabilities, genotypic and phenotypic correlations on agronomic characters in 20 introduced varieties of two-row barley(Hordeum distichum L. emend Lamark) seeded in the autumn on Cheju-do. Culm length, days to heading and days to maturity showed high values and number of grains per spike and number of spikes low heritability. There were high correlations between days to heading and days to maturity, spike weight and number of spikes and plant weight and spike weight. Grain yield showed highly positive correlations with spike weight and the number of spikes per plant in genotypic correlations. 1,000 grain weight was negatively correlated with most of other characters especially the number of grains per spike. The relation between those characters in genotypic correlations showed similar trend in phe- notypic correlations. Generally the coeficients of genotypic correlations were higher than those of corresponing phenotypic correlations.

조생온주에 있어서 과실형질의 변이정도와 상관관계

金翰琳 제주대학교 1972 논문집 Vol.4 No.-

This study was carried out to make clear the environmental variation on fruit characters and the relationships between them in Citrus unshiu Mar. var. paraecox Tanaka produced in the citrus orchard of Jeju college. The results obtained are outlined as follows : (1) Variable characters in the fruit were rind thickness, fruit weight, and flesh weight, and the coefficients of varaibility were 36, 58, 06, 51, and 25.75% (2) Variability of flesh ratio, shape index and number of segment were small. C. V. for soluble solid was 13.81% (3) It was observed that there was close relationship between rind thickness and fruit weight (r=0.996??) and negative relationship between rind thickness and flesh ratio (r=-0.542??). (4) Soluble solid was significantly negatively correlated with fruit weight (r=-0.439??). Small fruits contained much soluble solid.

播種期 移動에 따르는 麥酒麥 主要形質의 遺傳的 Parmeter 變化에 관한 硏究 : 播種基別-遺傳相關 및 表現型相關의 變化 Ⅰ. Changes in Genotypic and Phenotypic Correlations with Different Seeding Dates

金翰琳 제주대학교 1979 논문집 Vol.11 No.-

Genotypic and phenotypic correlations were estimated on 10 agronomic characters in 20 varieties of two-row barley (Hordeum disticbum L. emend Lamark)seeded 5 times with 15 day interval from October 16 on Jeju-do. The correlationships between characters were changed with the different seeding dates and the tendency of the change was not regular. Genotypic correlations between grain weight and the number of spikes, between grain weight and spike weight and between days to heading and days to maturity showed highly positive. The fluctuations in those correlations were not marked with different seeding dates. 1,000 grain weight was negatively correlated with most other characters in genotypic correlation and the number of spikes with the number of grains per spike but correlation coefficients between those characters were not high. Phenotypic correlations between grain weight and spike weight and between days to heading and days to maturity were found significant on all the seeding dates, and the correlation between grain weight and the number of spikes on the first, the second, and fifth seeding time. Generally the coefficients of genotypic correlations were higher than those of corresponding phenotypic correlations.

돼지감자에 있어서 播種期에 따른 二品種의 實用形疾의 變化

金翰琳 제주대학교 1984 논문집 Vol.18 No.-

本 硏究는 3月 29日부터 4月 26日까지 7日 간격으로 돼지감자의 白色種과 赤色種을 播種하여 實用形質의 變化를 究明하기 위하여 遂行되었는데, 其 結果는 다음과 같다. 塊莖收量과 一塊莖重 및 地上部의 乾物重은 白色種이 赤色種보다 더 무거웠으나 塊莖數는 赤色種이 더 많았다. 파종기가 늦을수록 두 品種 모두 塊莖收量, 一塊莖量, 地上部乾物重 및 草長이 감소되었고, 파종기의 遲延에 따르는 塊莖收量과 一塊莖重의 減少程度는 白色種에서보다 晩生種인 赤色種에서 더욱 뚜렷하였다. 塊莖收量은 白色種에서는 一塊莖重 및 地上部乾物重과 正의 相關關係가 있고, 赤色種에서는 塊莖數, 一塊莖重, 乾物重 및 草長과 有意的인 相關關係가 있었다. 一塊莖重은 地上部乾物重 및 草長과도 두 品種 共히 相關關係가 있었으나, 白色種에서의 塊莖數는 다른 形質과 相關이 없었다. This study was conducted to clarify the changes in the characters of Jerusalem artichoke cultivars, the white and the red, which were planted with seven day intervals from March 29 to April 26 on Cheju island. The results obtained are summarized as follows; The white cultivar was higher in the tuber yield, and heavier in the weight of a tuber and the dry top weight than the red, but the number of tubers was larger in the red than in the white. As the seeding date was late, the tuber yield, the weight of a tuber, the dry top weight and the plant length decreased in the both cultivars. The decrease of the tuber yield and the weight of a tuber was more remarkable in the red than in the white with delaying seeding date. The tuber yield was positively correlated with the weight of a tuber and the dry top weight in the white, and with the number of tubers, the weight of a tuber, the dry top weight and the plant length in the red. The weight of a tuber had correlation with the dry top weight and the plant length in the both cultivars. There was no relation between the number of tubers and the other characters of the white.

악교정수술 후 발생한 종격기종과 기흉: 증례보고

김한림,윤경인,최영준,손동섭,Kim, Han-Lim,Yun, Kyoung-In,Choi, Young-Jun,Sohn, Dong-Suep 대한악안면성형재건외과학회 2010 Maxillofacial Plastic Reconstructive Surgery Vol.32 No.3

Mediastinal emphysema, also referred to as pneumomediastinum or Hamman's syndrome, is defined as the presence of air or gas within the fascial planes of the mediastinum. Superior extension of air into the cervicofacial subcutaneous space via communications between the mediastinum and cervical fascial planes or spaces occurs occasionally. The mediastinal air may originate from the respiratory tract, the intrathoracic airway, the lung parenchyma, or the gastrointestinal tract. The presence of air in the mediastinum may be spontaneous, iatrogenic or due to penetrating trauma. Pneumothorax is defined as the presence of air or gas within the pleural cavity. A pneumothorax can occur spontaneously. It can also occur as the result of a disease or injury to the lung or due to a puncture to the chest wall. Pneumomediastinum and pneumothorax is a rare complication of head and neck surgery. Nevertheless, when it occurs, it is usually considered to result from direct dissection by the air at the time of injury or of surgery. Most of the cases of pneumomediastinum and pneumothorax that have been described in the oral and maxillofacial surgery literature result from air dissecting down the fascial planes of the neck. The authors report a case with subcutaneous emphysema, pneumomediastinum and pneumothorax after orthognathic surgery.

窒素施用에 의한 麥酒麥의 實用形質의 變化에 관한 硏究

金翰琳 제주대학교 1980 논문집 Vol.12 No.-

This study was carried out to obtain some information on the environmental variation of agronomic characters in two-row barley (Hordeum distichum L. emend Lamark) by applying nitrogen t different level, 0, 3, 6, 9, and 12㎏/10a. As the amount of nitrogen was increased, culm length, number of tillers, number of spokes, plant weight and grain yield also increased. These characters showed no effective increase in applying nitrogen above 6㎏/10a. Significant regression equations of plant weight, number of spikes, and grain yield on nitrogen application were Y=26.88 +19.15x-2.23x², Y=6.15+2.21x-0.27x², and Y=583.45+288.84x-33.67x²respectively. Culm length, spike length, number of tillers number of spikes, number of grains, plant weight, and grain yield were positively correlated with one another exept the relation between number of grain and spike length, but spike weight did not show relations with any other character. 1,000 grain weight had negative correlations with spike length, number of tillers, and plant weight.

Nasotracheal intubation시 비강 내 외상을 줄이기 위한 술전 computed tomography를 이용한 평가 및 전처지

김한림,윤경인,김경수,강현,최영준,Kim, Han-Lim,Yun, Kyoung-In,Kim, Kyung-Soo,Kang, Hyun,Choi, Young-Jun 대한구강악안면외과학회 2010 대한구강악안면외과학회지 Vol.36 No.3

Introduction: In a surgery of the oral cavity, nasotracheal intubation is often carried out to secure the surgical field. By passing a tracheal tube through the nasal cavity to the pharynx, the nasotracheal intubation can lead to complications that do not occur with oral intubation, such as nasal bleeding and submucosal aberration etc. The purpose of this study is to examine the method of CT evaluation and pretreatment for a safe nasotracheal intubation. Materials and Methods: Among 30 patients who orthognathic surgery was performed at Chung-Ang University Hospital during the period August 2009 to October 2009, 30 patients were included. The 30 patients were divided into two groups; 15 patients intubated with CT evaluation with pretreatment, and the other 15 patients intubated with no pretreatment. We evaluated nasal bleeding of the two groups during nasotracheal intubation. Results: CT evaluation with pretreatment group had a significantly lower incidence of nasal bleeding than the group with no pretreatment. Conclusion: CT evaluation with pretreatment helps to minimize nasal bleeding during nasotracheal intubation.

施肥量 差異에 따른 飼料用 穀實귀리의 遺傳的 Parameter

金翰琳,金贊佑 제주대학교 아열대농업생명과학연구소 1998 아열대농업생명과학연구지 Vol.15 No.-