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船荷證券의 EDI化에 따른 問題點과 改善方案에 관한 硏究
盧東煥 경인여자대학 1998 경인논집 Vol.- No.7
The purpose of this study is to analysis the legal and commercial problems associated with the use of electronic bill of lading. The study further suggests some solutions to these problems. The problems are as follows. At first, Carriers should be taken up additional responsibility and expenses. Second, It is very difficult to secure the function of orignal of the private key system, Third, There are some disputes on the point of offer and acceptance time in the carriage contracts and responsibility of participants. Some ways to improve these problems are to establish central register organization, to replace the private key system by the digitized signature system, and to make individual agreement between the parties.
노환중,정인교,양동규,김태규,김종렬 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3
Sonoring is caused by the repeated obstructions of versatile upper air way structure during sleep and is known as a kind of disease entity varing from simple snoring to obstructive sleep opnea syndrome(OSAS) which can cause serious cardiopulmonary complications due to its hypoxic pathophysiology. It has been reported that over 30% of middle-aged person have the problems of snoring and its accompanied symptomes and signs. Cephalometric measurements, frequently used to measure sella-nasion-subspinale(SNA) and sella-nasion-supramentale(SNB) angles, can provide the informations about the posterior airway space(PAS), the mandibular plane(MP) and the position of hyoid bone. These informations are useful in determining the therapeutic modalities of the snoring and OSAS patients. However, with conventional routine upright position, it does not represent the actual images of obstructive mechanism during sleep but only show the images of awaken normal upper airway anatomy. Therefore we have taken dual images of a routine upright lateral and a supine cephalometric view to compare both.
표재성 방광암에서 Bacillus Calmette-Guerin 방광 내 주입요법 : 장기적 추적결과 Long-term Follow up Results
김용웅,왕세환,육승모,한동석,노안식,나용길,설종구 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2
To evaluated the results of long-term follow up of superficial bladder cancer patients who were treated with transurethral resection and intravesical BCG therapy. Between April 1989 and December 1997, 65 patients with superficial bladder cancer were treated with TUR-B(Transurethral resection of bladder tumor) and intravesical BCG instillation, and follow-up was performed for 5 years longer, and the mean follow-up duration was 82 months. Of 65 patients, pathologic stage were Ta in 17 cases and T1 in 48 cases and grade were G Ⅰ in 22 cases, G Ⅱ in 35 cases and G Ⅲ in 8 cases. The tumor recurred in 22(33.8%) at the median of 21.8 months and the tumor progressed in 9(13.8%) at the median of 20.8 months. Most of the recurrences and progression were within 3 year(838 and 77%). Progression is more likely in higher grade(G Ⅱ, G Ⅲ) and higher stage(T1). The complete response rate after first and second courses of BCG therapy were 53% and 73% and the 5 and 10 year disease specific survival rates were 89.5 and 78% respectively. The complete response rate after first and second courses of BCG therapywere 53% and 73%. Most of recurrences and progressions were within 3 years of the BCG therapy, but some cases occured after 5 years. Therefore, close long-term follow up is needed.
광주지역 황사기간중의 대기 건성침적량의 특성에 관한 연구
류일광,이치영,강영식,노기환,김관천,유경석,강동구 광주보건대학 2002 論文集 Vol.27 No.-
The deposition amounts of Ferric that are naturally originated elements from earth crust. The rate was 14,993㎎/㎡ day at the rang yellow sand season, which was 20 times higher than at the ordinary times. Artifical earth crust element Cr were lower than the amount yellow sand an increase. Naturally originated elements origination, movment channel and mutual be close the correlations of elements each other and were lower than in artificially originated elements. Deposition amount of chang were higher before yellow sand, lower before yellow sand of origination, time were inverse proportion. The average concentration of liquefactive metals high, compare heavy matal and numerous of deposition amount. A1so gain liquefactive matal were rescattering numerous on account of little mass deduction.
노택환(Taek Hwan Roh),여택동(Taek Dong Yeo),장동식(Dong Sik Chang) 한국국제통상학회 1998 국제통상연구 Vol.3 No.1
For the four decades after the Second World War, the U.S. took the lead in promoting liberalization of world trade and establishing the rules of game for that trade in the consecutive round of multilateral trade negotiation. But, the large trade deficits and the increased competition in domestic and overseas markets that the U.S. has faced in recent years have called upon a result-oriented trade policy to set the quantitative performance targets. This kind of quantitative target(unofficially 20% target share in Japanese market) was set in U.S.-Japan semiconductor agreement and similar market share target was requested in U.S.-Korea auto negotiation in 1995. In fact, U.S. has frequently counted on an aggressive trade policy to manage its exports in a specific industry, entire volume of trade, or trade balance. This is called the common type of managed trade. The purpose of this paper is to study managed trade which has drawn increased attention to international economists nowadays. This paper studies managed trade as follows: definition, historical background and ideas behind managed trade, actual types and nature of managed trade, and policy instruments of managed trade. Then this paper tries to assess managed trade and gives some thoughts on the prospect for managed trade.
Fate of Grafts Bypassing Nonischemic Versus Ischemic Inducing Coronary Stenosis
Roh, Jae-Hyung,Kim, Young-Hak,Yang, Dong Hyun,Han, Seungbong,Yun, Sung-Cheol,Yang, Dong Heon,Park, Gyung-Min,Lee, Pil Hyung,Ahn, Jung-Min,Kang, Joon-Won,Lim, Tae-Hwan,Moon, Dae Hyuk,Kim, Joon Bum,Jung Elsevier 2018 The American Journal of Cardiology Vol.122 No.7
<P>There is a lack of evidence regarding the efficacy of ischemia-guided coronary artery bypass grafting. We compared the incidence of graft failure between grafts bypassing ischemia-inducing and nonischemia-inducing stenoses. Between 1997 and 2011, 2,304 patients for whom baseline coronary angiography and myocardial perfusion imaging were available were identified from a single-center coronary artery bypass grafting registry. According to baseline myocardial perfusion imaging, each graft was assigned to either graft bypassing ischemia-inducing or nonischemia-inducing stenoses (ischemia-related grafts, n = 4,904; ischemia-unrelated grafts, n = 2,709). Graft failure was defined as total occlusion on coronary computed tomography angiography, performed at the discretion of the treating physician. The incidence of graft failure was compared on a per-graft basis. At 5 years, the incidence of graft failure was significantly higher in the ischemia-unrelated grafts (4.2% vs 2.9% in ischemia-related grafts; p = 0.003). Ischemia-related graft was an independent determinant of graft patency (adjusted hazard ratio 0.61; 95% confidence interval 0.44 to 0.84; p = 0.002). Increased risk of graft failure associated with ischemia-unrelated graft was observed only in the internal thoracic artery (3.3% vs 2.0%, p = 0.021) and arterial grafts (6.5% vs 4.3%, p = 0.020), but not in the venous grafts (2.7% vs 2.7%; p = 0.99). In terms of major adverse cardiac and cerebrovascular events, 5-year incidences were comparable between the patients with and without ischemia-unrelated grafts (219, 19.3% vs 160, 18.0%; p = 0.61). In conclusion, ischemia-unrelated grafts became dysfunctional more frequently than ischemia-related grafts, and were not preventive of adverse events.</P>
Roh Yun Hwa,Chung Sae Rom,Baek Jung Hwan,Choi Young Jun,Sung Tae-Yon,Song Dong Eun,Kim Tae Yong,Lee Jeong Hyun 대한영상의학회 2023 Korean Journal of Radiology Vol.24 No.10
Objective: To evaluate the computed tomography (CT) features for diagnosing metastatic cervical lymph nodes (LNs) in patients with differentiated thyroid cancer (DTC) and validate the CT-based risk stratification system suggested by the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) guidelines. Materials and Methods: A total of 463 LNs from 399 patients with DTC who underwent preoperative CT staging and ultrasound-guided fine-needle aspiration were included. The following CT features for each LN were evaluated: absence of hilum, cystic changes, calcification, strong enhancement, and heterogeneous enhancement. Multivariable logistic regression analysis was performed to identify independent CT features associated with metastatic LNs, and their diagnostic performances were evaluated. LNs were classified into probably benign, indeterminate, and suspicious categories according to the K-TIRADS and the modified LN classification proposed in our study. The diagnostic performance of both classification systems was compared using the exact McNemar and Kosinski tests. Results: The absence of hilum (odds ratio [OR], 4.859; 95% confidence interval [CI], 1.593–14.823; P = 0.005), strong enhancement (OR, 28.755; 95% CI, 12.719–65.007; P < 0.001), and cystic changes (OR, 46.157; 95% CI, 5.07–420.234; P = 0.001) were independently associated with metastatic LNs. All LNs showing calcification were diagnosed as metastases. Heterogeneous enhancement did not show a significant independent association with metastatic LNs. Strong enhancement, calcification, and cystic changes showed moderate to high specificity (70.1%–100%) and positive predictive value (PPV) (91.8%–100%). The absence of the hilum showed high sensitivity (97.8%) but low specificity (34.0%). The modified LN classification, which excluded heterogeneous enhancement from the K-TIRADS, demonstrated higher specificity (70.1% vs. 62.9%, P = 0.016) and PPV (92.5% vs. 90.9%, P = 0.011) than the K-TIRADS. Conclusion: Excluding heterogeneous enhancement as a suspicious feature resulted in a higher specificity and PPV for diagnosing metastatic LNs than the K-TIRADS. Our research results may provide a basis for revising the LN classification in future guidelines.