• 한국조경학회지
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• 제42권2호
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• pp.65-76
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• 2014

최근 한국 조경분야는 도시 물 순환능력회복을 위한 새로운 개념적 대안으로 그린인프라스트럭처(GI)를 제안하고 있다. 이러한 맥락에서 본 연구를 통해 그린인프라스트럭처의 본질적 의미를 고찰하고자 한다. 연구의 방법은 인터넷 검색과 학술지 데이터베이스 문헌수집과정을 통해 최근 5년간 발간된 47편의 해외 학술지논문을 선별하고 분석하였다. 각 논문에서 연구에 활용한 그린인프라스트럭처의 정의문을 대상으로 분석하였으며, 각 문장에 포함된 동사와 목적어의 의미구조를 통해 해석하여 5대 목적성, 4대 대상요소, 3대 계획공간의 유형을 파악하였다. 5대 목적성은 '제공', '개선', '생산', '보전', '저감'이며, 4대 대상요소는 '인문', '환경', '생태', '수문'이다. 3대 계획공간은 '도입할 수 있는 대상이 되는 공간', '기술적으로 활용이 가능한 공간', '도입대상이 될 수 있으면서, 기술적으로 활용이 가능한 공간' 등이 해당한다. 각각의 대상 요소들은 목적성에 단수 혹은 2~3개가 직접 연결되며, 이는 그린인프라스트럭처의 본질적 의미연결망이다. 종합적으로 조경계획과 도시계획 수립에 활용가능 한 의미연결망의 수는 83개가 있음을 도출하였다.

• 대한한의학원전학회지
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• 제34권4호
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• pp.137-165
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• 2021

Objectives :The Korean Medical concept Gak-Gi(脚氣) is understood as being identical to Beriberi and Vitamin B1 deficiency, without the necessary investigation that is required in such identification. Therefore this study aims to systematically compare these two concepts for thorough investigation. Methods : Research was carried out in two directions. First, the cause, symptoms, treatment principles of Gak-Gi(脚氣) in the medical texts were analyzed. Second, the process of the Beriberi theory development and its identification with Gak-Gi(脚氣), medical information on Beriberi, and the basis of various diseases that have been linked to Gak-Gi(脚氣) were studied. Results of the two directions were used to compare Gak-Gi(脚氣) and Beriberi. Results : Gak-Gi(脚氣) and Beriberi overlap in many aspects. However, unlike Beriberi which is understood as nutrient deficiency essentially, Gak-Gi(脚氣) can be caused by exterior pathogens such as wind toxin, while its different manifestations and treatment principles cannot be fully explained by nutrient deficiency. Conclusions : Gak-Gi(脚氣) could be understood as a type of syndrome in which causes and symptoms are connected, where symptoms start in the legs, moving upwards. It cannot be identified with Beriberi, which has been interpreted as a single disease.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2006년 추계학술발표대회 개요집
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• pp.280-282
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• 2006

Prediction and control of the thermal distortion is particularly important for the design and manufacture of welded thin plate panel. In this study, experiments and computations are peformed to analyze how hole configuration and the size of the specimen effect on distortion. In addition, this study aims to develop a thermal elasto-plastic simulation using finite element method to predict distortion, with particular emphasis on buckling deformation generated in attachments welded around hole.

• Journal of Neurogastroenterology and Motility
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• 제24권4호
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• pp.614-627
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• 2018

Background/Aims Although functional abdominal pain disorders (FAPDs) are common in children, the accurate pathogenesis of FAPDs is not known yet. Micro-inflammation, particularly tissue eosinophilia of gastrointestinal (GI) tract, has been suggested as the pathophysiology observed in several GI disorders. We aimed to evaluate eosinophilic infiltration throughout the entire GI tract in children with FAPDs, compared to those with inflammatory bowel diseases (IBD) and to normal reference values. Methods We included 56 children with FAPDs, 52 children with Crohn's disease, and 23 children with ulcerative colitis. All subjects underwent esophagogastroduodenoscopic and colonoscopic examination with biopsies. Tissue eosinophil counts were assessed in 10 regions throughout the GI tract. Results Eosinophil counts of the gastric antrum, duodenum, terminal ileum, cecum, and ascending colon were significantly higher in children with FAPDs compared to normal reference values. Eosinophil counts of the stomach and the entire colon were observed to be significantly higher in children with IBD than in those with FAPDs. Even after selecting macroscopically uninvolved GI segments on endoscopy in children with IBD, eosinophil counts of the gastric body, cecum, descending colon, sigmoid colon, and the rectum were also significantly higher in children with IBD than those with FAPDs. Conclusions Significantly high eosinophil counts of the stomach and colon were observed in the order of IBD, followed by FAPDs, and normal controls, regardless of endoscopically detected macroscopic IBD lesions in children. This suggests some contribution of GI tract eosinophils in the intrinsic pathogenesis of FAPDs in children.

• 한국통신학회논문지
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• 제36권7B호
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• pp.760-770
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• 2011

기존 이동성 관리 기법들은 IP 기반의 코어 네트워크와 다양한 접근 네트워크를 수용하는 차세대 네트워크에서 활용하기에는 부족한 점이 많다. 현재 ETRI에서는 차세대 네트워크에서의 이동성 관리에 관한 ITU-T 요구사항을 만족시키는 AIMS (Access Independent Mobility Service) 시스템을 개발 중에 있다. AIMS 시스템은 차세대 네트워크에서 이종망간의 이동성 관리에 우수한 성능을 지닌다. 한편, 최근에 많이 활용되는 사용자 단말은 여러 개의 통신 인터페이스를 지니고 있어서 Wi-Fi와 3G와 같은 서로 다른 여러 네트워크에 동시에 접속할 수 있다. 본 논문에서는 AIMS 시스템에서 이동성 지원을 받는 단말들이 여러 네트워크에 동시에 접속할 경우 접속 네트워크 기술 간에 선택적으로 데이터 플로우를 이동시킬 수 있는 플로우 이동성(flow mobility) 기법을 설계하고 NS-3 시뮬레이션 구현을 통하여 제안 기법을 검증한 결과를 제시한다. 또한, 시뮬레이션 수행 결과를 통하여 제안 기법이 다양한 접근 네트워크를 지닌 이동 네트워크에서 네트워크의 지원을 보다 효율적으로 활용하게 함을 입증한다.

• The Korean journal of internal medicine
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• 제39권2호
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• pp.261-271
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• 2024

Background/Aims: Mucoprotective agents, such as eupatilin, are often prescribed to prevent gastrointestinal (GI) bleeding in addition to an acid suppressant despite the absence of a large-scale study. We evaluated the additional effect of eupatilin on the prevention of GI bleeding in both the upper and lower GI tract in concomitant aspirin and acid suppressant users using the nationwide database of national claims data from the Korean National Health Insurance Service (NHIS). Methods: An aspirin cohort was constructed using the NHIS claims data from 2013 to 2020. Patients who manifested with hematemesis, melena, or hematochezia were considered to have GI bleeding. A Cox proportional hazards regression model was used to determine the risk factors for GI bleeding associated with the concomitant use of GI drugs and other covariates among aspirin users. Results: Overall, a total of 432,208 aspirin users were included. The concurrent use of an acid suppressant and eupatilin (hazard ratio [HR] = 0.85, p = 0.016, vs. acid suppressant only) was a statistically significant preventive factor for GI bleeding. Moreover, a more than 3-month duration (HR = 0.88, p = 0.030) of acid suppressant and eupatilin prescription (vs. acid suppressant only) was a statistically significant preventive factor for GI bleeding. Conclusions: Eupatilin administration for ≥ 3 months showed additional preventive effect on GI bleeding in concomitant aspirin and acid suppressant users. Thus, cotreatment with eupatilin with a duration of 3 months or longer is recommended for reducing GI bleeding among aspirin plus acid suppressant users.

• Clinical Endoscopy
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• 제55권2호
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• pp.279-286
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• 2022

Background/Aims: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a standard procedure for obtaining tissue from lesions near the gastrointestinal lumen. However, there is a scarcity of information on the diagnostic performance of EUS-FNA for abdominal lymphadenopathy of unknown causes. To assess the accuracy of EUS-FNA in diagnosing abdominal lymphadenopathy of unknown etiology. Methods: The EUS records of patients with undiagnosed abdominal lymphadenopathy between 2010 and 2015 were reviewed. Results: A total of 42 patients were included in this study. Adequate specimens were obtained from 40 patients (95%). The final diagnoses were metastatic cancer (n=16), lymphoma (n=9), tuberculosis (n=8), inflammatory changes (n=6), and amyloidosis (n=1). For diagnosing malignancy, EUS-FNA had a sensitivity of 84.6%, specificity of 95.7%, positive predictive value of 91.7%, negative predictive value of 91.7%, and area under the receiver operating characteristic curve (AUROC) of 0.901. For the diagnosis of lymphoma, EUS-FNA was 100% accurate when combined with cytologic evaluation and immunohistochemical staining. The diagnostic sensitivity decreased to 75%, whereas the specificity remained 100%, for tuberculosis. The overall AUROC was 0.850. No procedure-related complications occurred. Conclusions: EUS-FNA showed high diagnostic performance for abdominal lymphadenopathy of unknown causes, especially malignancy, lymphoma, and tuberculosis. Therefore, it is a crucial diagnostic tool for this patient population.

• 대한한의정보학회지
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• 제14권2호
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• pp.47-57
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• 2008

This paper aims at the comparative study of practicing Buddhism and Taoism related to "life gate". The term "life gate", as a physiological entity of disputed morphological identity, first appears in The Inner Canon where it refers to the eyes. Reference to a "life gate" as an internal organ body first appears in The Classic of Difficult Issues which states, "The two kidneys are not both kidneys' The left one is the kidney, and the right is the life gate." Successive scholars refers to life gate as a gi point of Taoists.. The question of the life gate invited little discussion until the Myeong and Cheong Dynasty, when various different theories were put forward. Especially Jin Sa-taek says "life gate" is the governor of the twelve place in the human body, throwing light on the meaning of it. Not that life gate denotes a local point, it does a system of life gate. Generally speaking, life gate designates cinnabar field. I think that the human body produces essence by way of life gate. That is, the human body is unified by the system of life gate. Life gate is not only the source of infusing the engine of the human body with vital energy but also as well as gi-point.

• Clinical Endoscopy
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• 제57권2호
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• pp.217-225
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• 2024

Background/Aims: This study aims to compare polyp detection performance of "Deep-GI," a newly developed artificial intelligence (AI) model, to a previously validated AI model computer-aided polyp detection (CADe) using various false positive (FP) thresholds and determining the best threshold for each model. Methods: Colonoscopy videos were collected prospectively and reviewed by three expert endoscopists (gold standard), trainees, CADe (CAD EYE; Fujifilm Corp.), and Deep-GI. Polyp detection sensitivity (PDS), polyp miss rates (PMR), and false-positive alarm rates (FPR) were compared among the three groups using different FP thresholds for the duration of bounding boxes appearing on the screen. Results: In total, 170 colonoscopy videos were used in this study. Deep-GI showed the highest PDS (99.4% vs. 85.4% vs. 66.7%, p<0.01) and the lowest PMR (0.6% vs. 14.6% vs. 33.3%, p<0.01) when compared to CADe and trainees, respectively. Compared to CADe, Deep-GI demonstrated lower FPR at FP thresholds of ≥0.5 (12.1 vs. 22.4) and ≥1 second (4.4 vs. 6.8) (both p<0.05). However, when the threshold was raised to ≥1.5 seconds, the FPR became comparable (2 vs. 2.4, p=0.3), while the PMR increased from 2% to 10%. Conclusions: Compared to CADe, Deep-GI demonstrated a higher PDS with significantly lower FPR at ≥0.5- and ≥1-second thresholds. At the ≥1.5-second threshold, both systems showed comparable FPR with increased PMR.

• World Technopolis Review
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• 제6권2호
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• pp.130-147
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• 2017

This paper aims to identify the spatial concentrations and linkage properties of industrial clusters in the Chungbuk Province region in Korea using a three-step approach, which is composed of the cluster index, Getis-Ord's $Gi^*$, and qualitative input-output analysis. The results of the study reveal: a) what industrial sectors are concentrated and where they are; b) where the spatially interdependent industries are; and c) how the industrial sectors of the identified clusters in different locations are vertically interconnected. In addition, the degree of strength of the interindustry linkages between industrial clusters are assessed. Based on the findings, some plausible industrial policies are suggested.