中國의 對外政策과 朝鮮半島에 對한 着眼點

金鎭基(Jin Jen Ji) 한국국제정치학회 1991 國際政治論叢 Vol.30 No.2

Thermophilic BioMethanation in a Trickle Bed Reactor using Cattle Manure as Nutrient Media

Jin Mi Triolo,Muhammad Tahir Ashraf,Mads Ujarak Sieborg,Brian Dahl Jønson,Lars Yde,Jens Ejbye Schmidt 대한환경공학회 2019 대한환경공학회 학술발표논문집 Vol.2019 No.-

Ideal Topographic Simulations for Null Measurement Data

Yan-Jen Su,Chi-Hong Tung,Leh-Rong Chang,Jin-Liang Chen,Calvin Chang 한국정밀공학회 2008 International Journal of Precision Engineering and Vol.9 No.4

A method is described for ideally reconstructing the profile from a surface profiling measurement containing a reasonable amount of null measurement data. The proposed method can conjecture lost information and rectify irregular data that result due to bad measuring environments. signal transmission noise. or instrument-induced errors. The method adopts the concept 0/ computer graphics and consists of several processing steps. First, a search for valid data in the neighborhood of the null data is performed. The valid data are then grouped and their contours are extracted. By analyzing these contours, a bounding box can be obtained and the general distribution of the entire area encompassing the valid and null data is determined. Finally, em ideal surface model is overlaid onto the measurement results based on the bounding box, generating a complete reconstruction of the calculations. A surface-profiling task on a liquid crystal display photo spacer is used to verify the proposed method. The results are compared to those obtained through the use of a scanning electron microscope to demonstrate the accuracy of the proposed method.

Ideal Topographic Simulations for Null Measurement Data

Su, Yan-Jen,Tung, Chi-Hong,Chang, Leh-Rong,Chen, Jin-Liang,Chang, Calvin Korean Society for Precision Engineering 2008 International Journal of Precision Engineering and Vol.9 No.4

A method is described for ideally reconstructing the profile from a surface profiling measurement containing a reasonable amount of null measurement data. The proposed method can conjecture lost information and rectify irregular data that result due to bad measuring environments, signal transmission noise, or instrument-induced errors, The method adopts the concept of computer graphics and consists of several processing steps. First, a search for valid data in the neighborhood of the null data is performed. The valid data are then grouped and their contours are extracted. By analyzing these contours, a bounding box can be obtained and the general distribution of the entire area encompassing the valid and null data is determined Finally, an ideal surface model is overlaid onto the measurement results based on the bounding box, generating a complete reconstruction of the calculations, A surface-profiling task on a liquid crystal display photo spacer is used to verify the proposed method. The results are compared to those obtained through the use of a scanning electron microscope to demonstrate the accuracy of the proposed method.

Development of an integrated Web-based system with a pile load test database and pre-analyzed data

Chen, Yit-Jin,Liao, Ming-Ru,Lin, Shiu-Shin,Huang, Jen-Kai,Marcos, Maria Cecilia M. Techno-Press 2014 Geomechanics & engineering Vol.7 No.1

A Web-based pile load test (WBPLT) system was developed and implemented in this study. Object-oriented and concept-based software design techniques were adopted to integrate the pile load test database into the system. A total of 673 case histories of pile load test were included in the database. The data consisted of drilled shaft and driven precast concrete pile axial load tests in drained, undrained, and gravel loading conditions as well as pre-analyzed data and back-calculated design parameters. Unified modeling language, a standard software design tool, was utilized to design the WBPLT system architecture with five major concept-based components. These components provide the static structure and dynamic behavior of system message flows in a visualized manner. The open-source Apache Web server is the building block of the WBPLT system, and PHP Web programming language implements the operation of the WBPLT components, particularly the automatic translation of user query into structured query language. A simple search and inexpensive query can be implemented through the Internet browser. The pile load test database is helpful, and data can be easily retrieved and utilized worldwide for research and advanced applications.

북극해 퇴적 양상을 통한 제4기 중, 후기 서북극해 빙하역사 이해

조영진(Young Jin Joe),장광철(Kwangchul Jang),김정현(Jung-Hyun Kim),Leonid Polyak,Frank Niessen,Ruidiger Stein,Jens Matthiessen,Gerrit Lohmann,윤석훈(Seok-Hoon Yoon),우경식(Kyung Sik Woo),남승일(Seung-Il Nam) 대한지질학회 2021 대한지질학회 학술대회 Vol.2021 No.10

본 연구에서는 2015년도 쇄빙연구선 아라온호를 이용하여 수행된 북극탐사(ARA06C) 동안 서북극해 척치분지(수심 약 2300 m)에서 획득한 약 14 m 길이의 고해상도 점보피스톤코어 퇴적물 기록(ARA06C/04-JPC)과 해저지형자료를 분석하였다. 본 연구의 목표는 최근까지 보고된 북극해 퇴적물 시추코어기록을 종합하여 약 45만년(MIS 12) 동안 북극해의 시공간적인 퇴적율 변화와 빙하기와 간빙기에 일어났던 퇴적양상을 복원하는데 있다. 서북극해 퇴적층에는 캐나다 북극군도에서 기원하는 돌로마이트/쇄설성 탄산염 성분의 빙하기원 쇄설성 퇴적물이 쌓인 층(layers with iceberg rafted debris)이 빙하기/해빙기 층에서 반복적으로 나타나며, 이는 MIS 12 이후로 빙하기-간빙기 동안 로렌타이드 빙상의 성장과 후퇴가 반복되었음을 지시한다. 북극해에서 각 빙하기/해빙기의 평균 퇴적율은 MIS 7 이후 천년 단위로 mm 규모에서 cm 규모로 높아지는 경향을 보인다. 중앙 북극해 로모노소프 해령의 평균 퇴적율은 MIS 6/5 동안 1-2 cm/kyr로 증가하며, MIS 4/3 동안 최대 9 cm/kyr까지 높아진다. 동시베리아-척치 대륙주변부뿐만아니라 인접한 심해 분지에서는 MIS 12/11를 제외한 MIS 6/5와 MIS 4/3에 로모노소프 해령과 비슷하게 비교적 높은 퇴적율을 보인다. 특히, MIS 4/3 동안 동시베리아-척치 주변 해역은 20 cm/kyr 이상의 매우 높은 퇴적율을 보이는데, 이는 MIS 4 동안 발달된 동시베리아-척치해의 거대 해양기저빙하(marine-based glaciers)의 영향으로 많은 양의 퇴적물이 서북극해 심해저로 공급된 것으로 해석된다. 로모노소프 해령과 동시베리아-척치 주변해역 사이에 위치한 알파-멘델레프 해령에서도 MIS 4/3 동안 비교적 높은 퇴적율을 보이나, 이전의 빙하기/해빙기에서는 mm/kyr 규모의 매우 낮은 퇴적율이 나타난다. 최근, Batchelor et al . (2019)에서 제시한 북극해 빙하모델과 북극해 퇴적율의 변화를 비교해 본 결과, 로모노소프 해령에서 퇴적율이 증가하는 것은 유라시아 빙상과 동시베리아-척치 해역의 거대 해양기저빙하의 발달과 관련된 것으로 추정된다. 따라서 현재 남극대륙과 유사하게 북극해가 1 km 이상 두꺼운 빙붕(ice shelf)으로 덮였던 시기는 Jakobsson et al . (2016)이 제시하였던 MIS 6보다는 MIS 4으로 해석되며, 이는 동시베리아-척치 해역에서 거대빙하가 발달하였던 시기와 일치하는 것으로 보인다.

Spontaneously poling of electro-optic polymer thin films across a 1.1-mm thick glass substrate by pyroelectric crystals

Huang, Su,Luo, Jingdong,Jin, Zhian,Li, Ming,Kim, Tae-Dong,Chen, Antao,Jen, Alex K.-Y. American Institute of Physics 2014 APPLIED PHYSICS LETTERS Vol.105 No.18

Prognostic value of hyponatremia in heart failure patients: an analysis of the Clinical Characteristics and Outcomes in the Relation with Serum Sodium Level in Asian Patients Hospitalized for Heart Failure (COAST) study

( Byung Su Yoo ),( Jin Joo Park ),( Dong Ju Choi ),( Seok Min Kang ),( Juey Jen Hwang ),( Shing Jong Lin ),( Ming Shien Wen ),( Jian Zhang ),( Junbo Ge ) 대한내과학회 2015 The Korean Journal of Internal Medicine Vol.30 No.4

Background/Aims: Hyponatremia is a well-known risk factor for poor outcomes in Western studies of heart failure (HF) patients. We evaluated the predictive value of hyponatremia in hospitalized Asian HF patients. Methods: The Clinical Characteristics and Outcomes in the Relation with Serum Sodium Level in Asian Patients Hospitalized for Heart Failure (the COAST) study enrolled hospitalized patients with systolic HF (ejection fraction < 45%) at eight centers in South Korea, Taiwan, and China. The relationship between admissionsodium level and clinical outcomes was analyzed in 1,470 patients. Results: The mean admission sodium level was 138 ± 4.7 mmol/L, and 247 patients (16.8%) had hyponatremia defined as Na+ < 135 mmol/L. The 12-month mortality was higher in hyponatremic patients (27.9% vs. 14.6%, p < 0.001), and hyponatremia was an independent predictor of 12-month mortality (hazard ratio, 1.72; 95% confidence interval, 1.12 to 2.65). During hospital admission, 57% of hyponatremic patients showed improvement without improvement in their clinical outcomes (p = 0.620). The proportion of patients with optimal medical treatment was only 26.5% and 44.2% at admission and discharge, respectively, defined as thecombined use of angiotensin-converting-enzyme inhibitor/angiotensin receptor blocker and β-blocker. Underuse of optimal medical treatment was more pronounced in hyponatremic patients. Conclusions: In hospitalized Asian HF patients, hyponatremia at admission is common and is an independent predictor of poor clinical outcome. Furthermore, hyponatremic patients receive less optimal medical treatment than their counterparts.

The Effect of Glycemic Status on Kidney Stone Disease in Patients with Prediabetes

Tzu-Hsien Lien,Jin-Shang Wu,Yi-Ching Yang,Zih-Jie Sun,Chih-Jen Chang 대한당뇨병학회 2016 Diabetes and Metabolism Journal Vol.40 No.2

Background: While the evidence supporting a positive association between diabetes mellitus and kidney stone disease (KSD) is solid, studies examining the association between impaired fasting glucose (IFG) and KSD show inconsistent results. Currently, there are no studies examining the relationship between impaired glucose tolerance (IGT) and KSD. The objective of this study is to investigate the effects of different glycemic statuses on KSD. The results may help to motivate patients with diabetes to conform to treatment regimens. Methods: We conducted a cross sectional study of a population that underwent health check-ups between January 2000 and August 2009 at the Health Evaluation Center of National Cheng Kung University Hospital. A total of 14,186 subjects were enrolled. The following categories of glycemic status were used according to the criteria of the 2009 American Diabetes Association: normal glucose tolerance, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes. The existence of KSD was evaluated using renal ultrasonography, and the presence of any hyperechoic structures causing acoustic shadowing was considered to be indicative of KSD. Results: The prevalence of KSD was 7.4% (712/9,621), 9.3% (163/1,755), 10.8% (78/719), 12.0% (66/548), and 11.3% (174/1,543) in subjects with NGT, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes, respectively. Isolated IFG, combined IFG/IGT, and diabetes were associated with KSD after adjusting for other clinical variables, but isolated IGT was not. Age (41 to 64 years vs. ≤40 years, ≥65 years vs. ≤40 years), male gender, hypertension, and hyperuricemia were also independently associated with KSD. Conclusion: Isolated IFG, combined IFG/IGT, and diabetes, but not isolated IGT, were associated with a higher risk of KSD.

Poster Session : PS 0679 ; Rheumatology ; Comparisons of Radiographic Progression of Ankylosing Spondylitis Between Treatment with Tnf Antagonist, Continuous Treatment with Nsaid, and on Demand Treatment of Nsaid

( Hong Ki Min ),( Jin Young Kang ),( Jung Hee Koh ),( Seung Min Jung ),( Jen Nifer Lee ),( Ji Yeon Lee ),( Seung Ki Kwok ),( Ji Hyeon Ju ),( Wan Uk Kim ),( Sung Hwan Park ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1

Background: We investigated radiographic progression of ankylosing spondylitis (AS) patients treated with TNF antagonist, continuous NSAID, and on demand treatment of NSAID. Methods: This retrospective single-center study included 41 Korean AS patients who fulfi lled the 1984 Modifi ed New York criteria for AS or 2009 ASAS criteria for classifi cation of spondyloarthritis from January 2006 to June 2014. Patients who had been checked lateral cervical and lumbar radiographs at baseline, after 4 years, and 8 years were included. Radiologic progressions were measured by calculating modifi ed Stokes AS spinal score (mSASSS) and number of syndesmophytes. Oneway analysis of variance and Kruskal-wallis test were used for assessing comparisons. Results: Patients in TNF antagonist (n=14), continuous NSAID (n=12), and on demand NSAID (n=15) did not show difference in baseline characteristics and radiologic status (mSASSS score and number of syndesmophyte). Laboratory datas of ESR were higher in TNF antagonist group when compared with continuous NSAID group and on demand NSAID group (TNF antagonist vs continuous NSAID; 39.0 (9.8-71.8) vs 6.0 (4.3- 13.6), p=0.002, TNF antagonist vs on demand NSAID; 39.0 (9.8-71.8) vs 7.0 (3.0-33.0), p=0.013). Radiographic progressions measured by mSASSS and number of syndesmophytes were differed signifi cantly between TNF antagonist group and continuous NSAID group at 8 years: 7.5 (3.8-16.2) mSASSS change in TNF antagonist group versus 5.0 (2.0-6.0) in continuous NSAID group (p=0.040), 2.0 (0-5.2) syndesmophyte change in TNF antagonist group versus 1.0 (0-3.0) in continuous NSAID group (p=0.038). Conclusions: In our study, continuous NSAID treatment group showed less radiographic progressions of AS than TNF antagonist treatment group. Continuous NSAID usage may have superior effect on blocking the progression of new bone formation in AS, hence physicians may consider continuous NSAID treatment regardless of patient`s symptoms.