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Real-Time Tunable Gas Sensing Platform Based on SnO_(2) Nanoparticles Activated by Blue Micro-Light-Emitting Diodes

Nano-Micro Letters 2024年第12期16卷 103-119页

作者： Gi Baek Nam Jung-El ryu Tae Hoon Eom Seung Ju Kim Jun Min Suh Seungmin Lee sungkyun Choi Cheon Woo Moon Seon Ju Park Soo Min Lee Byungsoo Kim sung Hyuk Park Jin Wook Yang Sangjin Min Sohyeon Park sung Hwan Cho Hyuk Jin Kim Sang Eon Jun Tae Hyung Lee Yeong Jae Kim Jae Young Kim Young Joon Hong Jong-In Shim Hyung-Gi Byun Yongjo Park Inkyu Park Sang-Wan ryu Ho Won Jang Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Research Laboratory of Electronics Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeMA 02139USA Ming Hsieh Department of Electrical and Computer Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Display Materials Engineering Soonchunhyang UniversityAsan 31538Republic of Korea Department of Photonics and Nanoelectronics BK21 FOUR ERICA-ACE CenterHanyang University ERICAAnsan 15588Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok 25913Republic of Korea Advance Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Physics Chonnam National UniversityGwangju 500-757Republic of Korea

Micro-light-emitting diodes(μLEDs)have gained significant interest as an activation source for gas sensors owing to their advantages,including room temperature operation and low power ***,despite these benefits,challenges still exist such as a limited range of detectable gases and slow *** this study,we present a blueμLED-integrated light-activated gas sensor array based on SnO_(2)nanoparticles(NPs)that exhibit excellent sensitivity,tunable selectivity,and rapid detection with micro-watt level power *** optimal power forμLED is observed at the highest gas response,supported by finite-difference time-domain ***,we first report the visible light-activated selective detection of reducing gases using noble metal-decorated SnO_(2)*** noble metals induce catalytic interaction with reducing gases,clearly distinguishing NH3,H2,and ***-time gas monitoring based on a fully hardwareimplemented light-activated sensing array was demonstrated,opening up new avenues for advancements in light-activated electronic nose technologies.

关键词： Micro-LED Gas sensor array Low power consumption Metal decoration Real-time detection

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Semi-automatic Video Annotation Tool to Generate Ground Truth for Intelligent Video Surveillance Systems

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Journal of Electrical Engineering 2014年第4期2卷 160-168页

作者： ryu-Hyeok Gwon Jin-Tak Park Hakil Kim Yoo-sung Kim Department of Information and Communication Engineering Inha University Incheon 402-751 Korea

Generating ground truth data for developing object detection algorithms of intelligent surveillance systems is a considerably important yet time-consuming task; therefore, a user-friendly tool to annotate videos efficiently and accurately is required. In this paper, the development of a semi-automatic video annotation tool is described. For efficiency, the developed tool can automatically generate the initial annotation data for the input videos utilizing automatic object detection modules, which are developed independently and registered in the tool. To guarantee the accuracy of the ground truth data, the system also has several user-friendly functions to help users check and edit the initial annotation data generated by the automatic object detection modules. According to the experiment＇s results, employing the developed annotation tool is considerably beneficial for reducing annotation time; when compared to manual annotation schemes, using the tool resulted in an annotation time reduction of up to 2.3 times.

关键词： Video surveillance intelligent object detection data mining ground truth data.

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Analytical method development of pregabalin and related substances in extended release tablets containing polyethylene oxide

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Asian Journal of Pharmaceutical Sciences 2016年第1期11卷 229-230页

作者： Jin Seob Oh Seo Hyun Lim sung Ha ryu Kyung Hun Kim Kyung Soo Lee Woo Heon Song Jun Sang Park GL PharmTech Corporation

Pregabalin,(S)-3-amino methyl hexanoic acid,is a structural analogue ofγ-amino butyric acid(GABA)which has been widely used to treat partial seizures and neuropathic pain[1].It is soluble in aqueous solution and sparingly soluble in organic solvents such as ethanol,DMSO and *** oxide(PEO)has a strong negative effect on analysis of hydrophilic active ingredient and its relative substances due to extremely high viscosity of PEO in aqueous *** aim of this study is to develop a fast and precise method for the determination of pregabalin and its relative substances in extended release tablets including PEO using sodium sulfate for the treatment of sample solution.

关键词： Pregabalin Polyethylene oxide Related compound HPLC

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Analysis of Smoke Distribution in the Subway Station with Various Main Tunnel Ventilations

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Journal of Energy and Power Engineering 2015年第4期9卷 405-410页

作者： Yong-Jun Jang Ji-Min ryu sung-Huk Park Dong-Hoe Koo Korea Railroad Research Institute Railroad Safety Center Gyeonggi-do 437-757 South Korea

Fire-driven flow analysis in the underground subway station has been performed with various main tunnel ventilations. Shin-gum-ho station （depth： 46 m） in Seoul is selected as a simulation model. The ventilation mode is assumed to be emergency state. Various main tunnel ventilations are applied to operate in a proper way for helping of smoke exhaustion in platform. The entire station is covered for simulation. Ventilation diffusers are modeled as 95 square shapes of 0.6 m × 0.6 m in the lobby and as 222 square shapes of 0.6 m × 0.6 m and four rectangular shapes of 1.2 m × 0.8 m in the platform. The total of 7.5 million grids is generated and whole domain is divided to 22 blocks for MPI （massage passing interface） efficiency of calculation. LES （large eddy simulation） is applied to solve the momentum equation. Smagorinsky model （Cs = 0.2） is used as SGS （subgrid scale） model. The distribution of CO （carbon monoxide） is calculated for various capacity of main tunnel ventilation and compared with each other.

关键词： Subway station main tunnel ventilation fire-driven flow LES.

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Multiplanar reformations and minimum intensity projections using multi-detector row CT for assessing anomalies and disorders of the pancreaticobiliary tree

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World Journal of Gastroenterology 2007年第31期13卷 4177-4184页

作者： Hyun Cheol Kim Dal Mo Yang Wook Jin Chang Woo ryu Jung Kyu ryu sung Il Park Seong Jin Park Hyeong Cheol Shin Il Young Kim Department of Radiology East-West Neo Medical Center Kyung-Hee University Seoul Republic of Korea Department of Diagnostic Radiology Kwandong University Myongji Hospital Goyang Republic of Korea Department of Diagnostic Radiology Soonchunhyang University Bucheon Hospital Bucheon Republic of Korea Department of Diagnostic Radiology Soonchunhyang University Cheonan Hospital Cheonan Republic of Korea

CT scan is regarded as the imaging modality of choice in patients with pancreaticobiliary ductal abnormalities. However, the axial orientation of the CT images provides only limited anatomical view of pancreaticobiliary ductal abnormalities. The technological advances of multi-de-tector row CT and three-dimensional image processing in workstations allows rapid image acquisition and a short postprocessing time. In particular, multiplanar reforma-tions (MPR) and minimum intensity projections (MinIP) offer rapid and accurate images of the anatomy and ab-normalities of the pancreaticobiliary tree. Moreover, MPR and MinIP help determine the relationship between the pancreaticobiliary ductal anatomy and the surrounding structures. This pictorial review illustrates the wide spec-trum of images obtained by the MPR and MinIP of the anomalies and disorders of the pancreaticobiliary tree.

关键词： Multi-detector CT Bile Ducts Biliary System Pancreas Computer Applications-3D

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Long-term outcomes of endoscopic submucosal dissection for undifferentiated type early gastric cancer over 2 cm with R0 resection

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World Journal of Gastrointestinal Endoscopy 2024年第6期16卷 326-334页

作者： Jun Yong Bae Chang Beom ryu Moon sung Lee Kulwinder S Dua Internal Medicine and Digestive Disease Center Seoul Medical CenterSeoul 02053South Korea Internal Medicine and Digestive Disease Center and Research Institute Soon Chun Hyang University of School of MedicineBucheon 14584South Korea Department of Medicine Medical College of WisconsinMilwaukeeWI 53226United States

BACKGROUND Endoscopic submucosal dissection(ESD)for over 2 cm in size undifferentiated type(UD type)early gastric cancer(EGC)confined to the mucosa is not only challenging,but also long-term outcomes are not well *** To evaluate the long-term outcomes of ESD done for UD type EGCs confined to the mucosa over 2 cm in size and compare the results with those where the lesions were less than 2 *** 143 patients with UD type EGC confirmed on histology after ESD at a tertiary hospital were *** with synchronous and metachronous lesions and a case with emergency surgery after ESD were excluded.A total of 137 cases were enrolled.79 cases who underwent R0 resection were divided into 2 cm or less(group A)and over 2 cm(group B)in *** Among 79 patients who underwent R0 resection,the number in group A and B were 51 and 28,*** mean follow-up period(SD)was 79.71±45.42 *** was a local recurrence in group A(1/51,2%)and group B(1/28,3.6%)*** patient in group A underwent surgery while the patient in group B underwent repeated ESD with no further recurrences in both *** was no regional lymph node metastasis,distant metastasis,and deaths in both *** R0 resection strategy for ESD on lesions over 2 cm,20.4%(28/137)of patients were able to avoid surgery compared with expanded *** If R0 resection is achieved by ESD,UD type EGCs over 2 cm also showed good and similar clinical outcomes as compared to lesions less than 2 cm when followed for over 5 *** R0 resection strategy,several patients can avoid surgery.

关键词： Undifferentiated type early gastric cancer Endoscopic submucosal dissection Long term outcomes Over 2 cm Early gastric cancer

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Rhabdomyolysis from spinning exercise and ephedra-contained herbal medicine

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Journal of Sport and Health Science 2016年第2期5卷 248-249页

作者： Hoyoung ryu Hong Sup Kim Heejung Choi Jooyoung Kim Dong Jun sung Division of Sport Science College of Science and Technology Konkuk University Department of Urology Konkuk University Hospital Department of Nephrology Konkuk University Hospital Health and Rehabilitation Major Kookmin University

Dear editor, Frequent participation in physical activity has a positive impact on individual physical and psychological well-being, and the effect of physical activity and exercise varies according to individual physical fitness level, the environment, and drug intake. Particularly, severe exercise that exceeds the individual physical fitness level may result in musculoskeletal injury or damage,1 and rhabdomyolysis is a pathological condition of the musculoskeletal system that can be complicated by acute renal failure, compartment syndrome, and hepatitis.2 People who fail to receive proper management for rhabdomyolysis may face life-threatening conditions, even death.

关键词：旋转运动横纹肌麻黄草药溶解

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The Heart Disorders with Survey Study in Oriental Medicine: Using the Magnetocardiography (MCG)

The Heart Disorders with Survey Study in Oriental Medicine: ...

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第三届国际传统医药大会

作者： Sun Mi Choi Yeon Hee ryu Jin Suk Moon Joung Yeol Kim Kyung Mo Park Young Huh Chan Gil Jeung Hyun jea sung Yoo sik Yoon Kyoo Seok Ahn Medical Research & Development Team Korea Institute of Oriental Medicine Department of biomedical Engineering Kyunghee University Korea Electrotechnology Research Institute College of Oriental Medicine Semyung University Kyunghee University Oriental Medical College Pathology Laboratory

Objective:This study was to determine the standard of criteria for each different diagnosis of signs and symptoms. Methods: Eleven experts were asked to evaluate the adequateness of criteria that was developed by Korea Institute of Oriental Medicine (KIOM) and suggested the amendment of them. To perform the study, we used the questionnaire which asks about the diagnosis criteria for an insufficiency of the heart-qi (心气虚证), deficiency of the heart blood (心血虚证), deficiency of the heart-yin (心阴虚证), insuffi-

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A novel cytokine consisting of the p40 and EBI3 subunits suppresses experimental autoimmune arthritis via reciprocal regulation of Th17 and Treg cells

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Cellular & Molecular Immunology 2022年第1期19卷 79-91页

作者： Seon-Yeong Lee Su-Jin Moon Young-Mee Moon Hyeon-Beom Seo Jun-Geol ryu A Ram Lee Chae Rim Lee Da-Som Kim Yang-Mi Her Jeong Won Choi Seung-Ki Kwok sung-Hwan Park Mi-La Cho The Rheumatism Research Center The Catholic University of KoreaSeoulSouth Korea Division of Rheumatology Department of Internal MedicineSeoul St.Mary’s HospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Department of Biomedicine&Health Sciences College of MedicineThe Catholic University of KoreaSeoulSouth Korea Department of Medical Lifescience College of MedicineThe Catholic University of KoreaSeoulSouth Korea These author contributed equally:Seon-Yeong Lee Su-Jin MoonYoung-Mee Moon

OBJECTIVE:The interleukin(IL)-12 cytokine family is closely related to the development of T helper cells,which are responsible for autoimmune disease enhancement or ***-12 family members are generally heterodimers and share threeα-subunits(p35,p19,and p28)and twoβ-subunits(p40 and EBI3).However,aβ-sheet p40 homodimer has been shown to exist and antagonize IL-12 and IL-23 signaling ***,we assumed the existence of a p40-EBI3 heterodimer in nature and sought to investigate its role in immune ***:The presence of the p40-EBI3 heterodimer was confirmed by ELISA,immunoprecipitation,and western blotting.A p40-EBI3 vector and p40-EBI3-Fc protein were synthesized to confirm the immunological role of this protein in mice with collageninduced arthritis(CIA).The anti-inflammatory effects of p40-EBI3 were analyzed with regard to clinical,histological,and immune cell-regulating features in mice with ***:Clinical arthritis scores and the expression levels of proinflammatory cytokines(e.g.,IL-17,IL-1β,IL-6,and TNF-α)were significantly attenuated in p40-EBI3-overexpressing and p40-EBI3-Fc-treated mice with CIA compared to vehicle-treated mice with *** joint damage and vessel formation-related gene expression were also reduced by p40-EBI3 heterodimer *** vitro,the p40-EBI3-Fc protein significantly suppressed the differentiation of Th17 cells and reciprocally induced CD4+CD25+Foxp3+(regulatory T)cells.p40-EBI3 also inhibited osteoclast formation in a concentrationdependent ***:In this study,p40-EBI3 ameliorated proinflammatory conditions both in vivo and in *** propose that p40-EBI3 is a novel anti-inflammatory cytokine involved in suppressing the immune response through the expansion of Treg cells and suppression of Th17 cells and osteoclastogenesis.

关键词： cytokine p40-EBI3 Rheumatoid arthritis Autoimmune disease regulatory T cell

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Matthew effect:General design strategy of ultra-fluorogenic nanoprobes with amplified dark–bright states in aggregates

Aggregate

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Aggregate 2024年第2期5卷 482-492页

作者： Shinsuke Segawa Xinwen Ou Tianruo Shen Tomohiro ryu Yuki Ishii Herman H.Y.sung Ian D.Williams Ryan T.K.Kwok Ken Onda Kiyoshi Miyata Xuewen He Xiaogang Liu Ben Zhong Tang Translational and Advanced Bioimaging Laboratory Department of Chemical and Biological EngineeringSchool of EngineeringThe Hong Kong University of Science and TechnologyKowloonHong KongChina Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced StudyThe Hong Kong University of Science and TechnologyKowloonHong KongChina Science Mathematics and Technology ClusterSingapore University of Technology and DesignSingaporeSingapore Department of Chemistry Graduate School of ScienceKyushu UniversityNishi-kuFukuokaJapan The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsuChina School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhenGuangdongChina

Fluorescence imaging,a key technique in biological research,frequently utilizes fluorogenic probes for precise imaging in living *** is an effective emission quencher in fluorogenic probe designs,which can be selectively damaged upon bioorthogonal click reactions,leading to considerable emission *** significant efforts to increase the emission enhancement ratio(I_(AC)/I_(BC))of tetrazine-functionalized fluorogenic probes,the influence of molecular aggregation on the emission properties has been largely overlooked in these probe *** this study,we reveal that an ultrahigh I_(AC)/I_(BC)can be realized in the aggregate system when tetrazine is paired with aggregation-induced emission(AIE)*** amplifies its quenching efficiency upon aggregation and drastically reduce background *** click reactions damage tetrazine and trigger significant AIE,leading to considerably enhanced I_(AC)/I_(BC).We further showcase the capability of these ultra-fluorogenic systems in selective imaging of multiple organelles in living *** term this unique fluorogenicity of AIE luminogen-quencher complexes with amplified dark-bright states as“Matthew effect”in aggregate emission,potentially providing a universal approach to attain ultrahigh I_(AC)/I_(BC)in diverse fluorogenic systems.

关键词： aggregation-induced emission bioorthogonal chemistry click chemistry fluorescence imaging tetrazine

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