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Successful recanalization of chronic total occlusion of the superior mesenteric artery by transradial approach

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第8期11卷 627-630页

作者： Woo Taek kim Sung Gyun AHN Jun-Won LEE Joong kyung SUNG Seung Hwan LEE Junghan yoon Division of Cardiology Wonju College of MedicineYonsei University

It is a challenge to confirm chronic mesenteric ischemia(CMI) as a cause of gastrointestinal(GI) symptoms such as postprandial epigastric bloating,anorexia,and debilitating weight *** intervention for CMI has been gaining popularity because of the high morbidity associated with surgical ***,in EVI for superior mesenteric artery(SMA) occlusion,the transfemoral approach is limited by difficulty in coaxial alignment of the guiding catheter,which leads to insufficient back-up ***,we report on a 58-year-old male patient with chronic total occlusion of the SMA,which was successfully revascularized by endovascular intervention via the left radial *** endovascular therapy may be another treatment option for the treatment of CMI.

关键词： Transluminal angioplasty Radial artery Superior mesenteric artery Chronic mesenteric ischemia

Upconverting nanoparticle-containing erythrocyte-sized hemoglobin microgels that generate heat,oxygen and reactive oxygen species for suppressing hypoxic tumors

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Bioactive Materials 2023年第4期22卷 112-126页

作者： Hanju kim Johyun yoon Hwang kyung kim Woo Tak Lee Nguyen Thi Nguyen Xuan Thien Le Eun-Hee Lee Eun Seong Lee kyung Taek Oh Han-Gon Choi Yu Seok Youn School of Pharmacy Sungkyunkwan University2066 Seobu-roJangan-guSuwonGyeonggi-do16419Republic of Korea College of Pharmacy Korea University2511 Sejong-roSejong30019Republic of Korea Department of Biotechnology and Department of Biomedical-Chemical Engineering the Catholic University of Korea43 Jibong-roBucheon-siGyeonggi-do14662Republic of Korea College of Pharmacy Chung-Ang University84 Heukseok-roDongjak-guSeoul06974Republic of Korea College of Pharmacy Hanyang University55Hanyangdaehak-roSangnok-guAnsan15588Republic of Korea

Inspired by erythrocytes that contain oxygen-carrying hemoglobin(Hb)and that exhibit photo-driven activity,we introduce homogenous-sized erythrocyte-like Hb microgel(μGel)systems(5-6μm)that can(i)emit heat,(ii)supply oxygen,and(iii)generate reactive oxygen species(ROS;1O2)in response to near-infrared(NIR)laser *** μGels consist of Hb,bovine serum albumin(BSA),chlorin e6(Ce6)and erbium@lutetium upconverting nanoparticles(UCNPs;~35 nm)that effectively convert 808 nm NIR light to 660 nm visible *** Hb μGels are capable of releasing oxygen to help generate sufficient reactive oxygen species(^(1)O_(2))from UCNPs/Ce6 under severely hypoxic condition upon NIR stimulation for efficient photodynamic ***,the Hb μGels emit heat and increase surface temperature due to NIR light absorption by heme(iron protoporphyrin IX)and display photothermal *** changing the Hb/UCNP/Ce6 ratio and controlling the amount of NIR laser irradiation,it is possible to formulate bespoke Hb μGels with either photothermal or photodynamic activity or both in the context of combined therapeutic *** Hb μGels effectively suppress highly hypoxic 4T1 cell spheroid growth and xenograft mice tumors in vivo.

关键词： Hemoglobin microgel Upconversion Photothermal therapy Photodynamic therapy Hypoxic tumors Oxygen-generation

PopFlow:a novel flow management scheme for SDN switch of multiple flow tables based on flow popularity

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Frontiers of Computer Science 2020年第6期14卷 111-122页

作者： Cheng WANG kyung Tae kim Hee Yong YOUN College of Electrical and Computer Engineering Sungkyunkwan UniversitySuwon 16419Korea College of Software Sungkyunkwan UniversitySuwon 16419Korea

Pipeline processing is applied to mutiple flow tables(MFT)in the switch of software-defined network(SDN)to increase the throughput of the ***,the processing time of each flow increases as the size or number of flow tables gets *** this paper we propose a novel approach called PopFlow where a table keeping popular flow entries is located up front in the pipeline,and an express path is provided for the flow matching the table.A Markov model is employed for the selection of popular entries considering the match latency and match frequency,and Queuing theory is used to model the flow processing time of the existing MFT-based schemes and the proposed *** simulation reveals that the proposed scheme substantially reduces the flow processing time compared to the existing schemes,and the diference gets more significant as the flow arrival rate increases.

关键词： edge computing SDN pipeline processing PopFlow match frequency and latency markov model-based prediction

Water hammer in the pump-rising pipeline system with an air chamber

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Journal of Hydrodynamics 2014年第6期26卷 960-964页

作者： kim Sang-Gyun LEE Kye-Bock kim kyung-Yup Korea Water Resources Corporation School of Mechanical Engineering Chungbuk National University School of Mechanical Engineering Korea Polytechnic University

Water hammer following the tripping of pumps can lead to overpressure and negative pressure. Reduction in overpressure and negative pressure may be necessary to avoid failure, to improve the efficiency of operation and to avoid fatigue of system components. The field tests on the water hammer have been conducted on the pump rising pipeline system with an air chamber. The hydraulic transient was simulated using the method of characteristics. Minimizing the least squares problem representing the difference between the measured and predicted transient response in the system performs the calibration of the simulation program. Among the input variables used in the water hammer analysis, the polytropic exponent, the discharge coefficient and the wave speed were calibrated. The computer program developed in this study will be useful in designing the optimum parameters of an air chamber for the real pump pipeline system. The correct selection of air chamber size and the effect of the inner diameter of the orifice to minimize water hammer have been investigated by both field measurements and numerical modeling.

关键词： air chamber design parameter field test pump pipeline system water hammer

Ethnic differences in gastric cancer genetic susceptibility:Allele flips of interleukin gene

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World Journal of Gastroenterology 2014年第16期20卷 4558-4565页

作者： Juwon kim yoonjung kim kyung-A Lee Department of Laboratory Medicine Yonsei University Wonju College of MedicineGangwon-do 220-701South Korea Department of Laboratory Medicine Yonsei University College of MedicineSeoul 135-720South Korea

Polymorphisms in promoter regions of inflammatory cytokines have been widely studied,and potentially functional polymorphisms have been *** results from meta-analyses of interleukin(IL)-1B and IL-10 polymorphisms show differences in gastric cancer susceptibilities between Caucasian and Asian *** particular,we note the suggestion of an allele flip in IL-1B and IL-10 gene *** Asian populations,the IL-1B-1464G/-511C/-31T haplotype indicates risk for gastric cancer,while the opposite haplotype,IL-1B-1464C/-511T/-31C is the risk-related allele in ***,while IL-10-1082G/-819C/-592C is associated with gastric cancer in Asians,IL-10-1082A/-819T/-592T is linked to gastric cancer risk in *** seemingly contradictory results may be attributed to distinct carcinogenic mechanisms underlying the different gastric cancer *** allele flip observed in IL-10 and gastric cancer appears to reflect allelic heterogeneity,similar to that observed in *** this review,we focus on the allele flip phenomenon observed between different ethnic groups in an effort to resolve certain controversial results from recent studies on interleukin *** addition,we re-emphasize the importance of stratifying gastric cancer subtypes based on anatomical site and Lauren classification to prevent false associations arising through dilution of true ones.

关键词： Allele flip Gastric cancer Interleukin gene

Paradoxical vocal fold motion masquerading as post-anesthetic respiratory distress:A case report

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World Journal of Clinical Cases 2023年第10期11卷 2349-2354页

作者： Jongyoon Baek Dae-Lim Jee yoon Seok Choi Sang Woo kim Eun kyung Choi Department of Anesthesiology and Pain Medicine Yeungnam University College of MedicineDaegu 42415South Korea Department of Otorhinolaryngology-Head and Neck Surgery Yeungnam University College of MedicineDaegu 42415South Korea Department of Neurosurgery Yeungnam University College of MedicineDaegu 42415South Korea

BACKGROUND Functional vocal cord disorders can be a differential diagnosis for postoperative upper airway obstruction requiring urgent ***,this may be unfamiliar to anesthesiologists who would favor inappropriate airway intervention and increased *** SUMMARY A 61-year-old woman underwent cervical laminectomy,followed by laparoscopic cholecystectomy 10 mo *** adequate reversal of neuromuscular blockade,the patient experienced repetitive respiratory difficulty with inspiratory stridor after *** the second operation,the patient was diagnosed with paradoxical vocal fold motion(PVFM)by an otolaryngologist based on the clinical features and fiberoptic bronchoscopy results,and the patient was successfully *** PVFM should be considered a differential diagnosis if a patient presents with stridor after general anesthesia.

关键词： Anesthesiology Vocal fold Paradoxical motion Postoperative respiratory distress Case report

Insulinotrophic and hypolipidemic effects of Ecklonia cava in streptozotocin-induced diabetic mice

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Asian Pacific Journal of Tropical Medicine 2012年第5期5卷 374-379页

作者： Mi-Ja kim Hye kyung kim Department of Food and Biotechnology Hanseo UniversitySeosan 356-706Republic of Korea Department of Pharmacology school of MedicineKyunghee UniversitySeoul 130-701Republic of Korea

Objective:To explore the anti-diabetic activity of Ecklonia cava(EC) in streptozotocin(STZ)-induced diabetic ***:Diabetes was induced by a single intraperitoneal injection of STZ(90 mg/kg).Normal and diabetic mice were treated with 0%,3%,and 5%EC diet for 4 weeks. Serum glucose and insulin concentrations,serum lipid profile,oral glucose tolerance test,and liver and pancreaticβ-cell histopathological observations were *** addition,in vitro glucose-induced insulin secretion was determined using pancreaticβ-islet ***:EC supplementation significantly and dose-dependently decreased serum glucose concentration, and improved glucose homeostasis in diabetic mice by preventing loss ofβ-cell mass resulting in increase of insulin *** triglyceride and total cholesterol concentrations in the serum and liver were markedly reduced by EC treatment in STZ-diabetic ***,LDL-,and HDL-cholesterol levels were ameliorated in EC supplemented diabetic *** steatosis induced by STZ was ameliorated by EC ***,in vitro insulinotrophic effect of EC extract was observed in pancreaticβ-***:This study demonstrated that EC is a potent and efficacious hypoglycemic and hypolipidemic agent,and prevents the loss ofβ-cell mass resulting in increase of insulin secretary capacity.

关键词： Diabetes Streptozotocin Insulin Lipid profile Pancreaticβ-cell

Morphology Control of Bi2S3 Nanostructures and the Formation Mechanism

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Chinese Journal of Chemistry 2013年第6期31卷 752-756页

作者： HeeJin kim Ji-eun Park kyung kim Mi-kyung Han Sung-Jin kim Wooyoung Lee Department of Materials Science and Engineering Yonsei University Seou1120- 749 Korea Department of Chemistry and Nano Science Ewha Womans University Seoul 120-750 Korea

Bismuthinite （Bi2S3）nanostructures were prepared by a hydrothermal method with sodium ethylenediamine- tetraacetate （EDTA-Na2）. The morphology of Bi2S3 nanostructures was changed from a nanorod to a nanoplate by presence of the EDTA-Na2. The altered morphology was caused by the capping effect of EDTA-Na2 with Bi3＋ ions, which induces the suboptimal growth direction due to partially blocking the preferential orientation direction. When the EDTA-Na2/Bi3＋ molar ratio= 1, the growth of Bi2S3 nanostructures was not allowed due to the chelating effect of EDTA-Na2. The obtained Bi2S3 nanorods, stacked nanorods, nanoplates and nanoparticles were characterized using X-ray diffraction （XRD）, transmission electron microscopy （TEM）, high-resolution transmission electron mi- croscopy （HRTEM） and selected area electron diffraction （SAED） pattern. A possible formation mechanism of these morphologies was proposed. The successful synthesis of various morphologies of nanostructured Bi2S3 may open up new possibilities for thermoelectric, electronic and optoelectronic uses of nanodevices based on Bi2S3 nanostructure.

关键词： bismuth sulfide (Bi2S3) hydrothermal nanorod nanoplate thermoelectric material

Exploring Artistic Embeddings in Service Design:A Keyword-Driven Approach for Artwork Search and Recommendations

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Tsinghua Science and Technology 2024年第5期29卷 1580-1592页

作者： Jie Yuan Fangru Lin Hae yoon kim College of Design Dongseo UniversityBusan 47011Republic of Korea Shandong Provincial University Laboratory for Protected Horticulture College of ArtsWeifang University of Science and TechnologyWeifang 262700China

As living standards improve,the demand for artworks has been escalating,transcending beyond the realm of mere basic human ***,amidst an extensive array of artwork choices,users often struggle to swiftly and accurately identify their preferred *** such scenarios,a recommendation system can be invaluable,assisting users in promptly pinpointing the desired artworks for better service *** the escalating demand for artwork recommendation systems,current research fails to adequately meet these ***,existing artwork recommendation methodologies tend to disregard users’implicit interests,thereby overestimating their capability to articulate their preferences in full and often neglecting the nuances of their diverse *** response to these challenges,we have developed a weighted artwork correlation graph and put forth an embedding-based keyword-driven artwork search and recommendation *** approach transforms the keywords that delineate user interests into word embedding *** allows for an effective distinction between the user’s core and peripheral ***,we employ a dynamic programming algorithm to extract artworks from the correlation graph,thereby obtaining artworks that align with the user’s explicit keywords and implicit *** have conducted an array of experiments using real-world datasets to validate our *** results attest to the superiority of our method in terms of its efficacy in searching and recommending artworks.

关键词： artwork self-attention recommendation dynamic programming implicit interest