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Migration routes and differences in migration strategies of Whooper Swans between spring and autumn

Avian Research 2023年第3期14卷 345-353页

作者： Ji-Yeon lee Hyung-Kyu Nam Jin-Young Park Seung-Gu Kang Nyambayar Batbayar dong-won Kim Jae-Woong Hwang Otgonbayar Tsend Tseveenmyadag Natsagdorj Jugdernamjil Nergui Tuvshintugs Sukhbaatar Wee-Haeng Hur Jeong-Chil Yoo The Korea Institute of Ornithology and Department of Biology Graduate SchoolKyung Hee University26 Kyungheedae-roDongdaemun-guSeoul02447Republic of Korea National Institute of Biological Resources 42 Hwangyeong-roSeo-guIncheon22689Republic of Korea Endangered Species Research Center National Institute of EcologyYeongyang36351Republic of Korea Wildlife Sciences and Conservation Center of Mongolia Union BuildingB-701UNESCO str.Ulaanbaatar14210Mongolia

Long-distance migratory birds travel more rapidly in spring than in autumn,as they face temporal breeding ***,several species travel slower in spring owing to environmental influences,such as food availability and wind *** trackers were attached to 17 Whooper Swans(Cygnus cygnus) inhabiting northeastern Mongolia,to determine their migration routes and stopover sites in spring and *** between spring and autumn migrations,migration-influencing parameters,and the effect of spring stopover site temperatures were *** swans completed perfect tours between their wintering and breeding sites,and these data were used for *** migration lasted 57 days,with 49.2 days spent at 3.7 stopover *** migration lasted 21.5 days,with 17.5 days spent at 1.0 stopover ***,the swans traveled more rapidly in autumn than in *** distance,number of stopovers,migration speed,and straightness were important migration determinants in both spring and *** distance,stopover duration,number of stopovers,daily travel speed,travel duration,and migration speed differed significantly between spring and *** spring migration,the temperature at the current stopover sites and that at the future stopover sites displayed significant variations(t=1585.8,df=631.6,p <0.001).These findings are critical for the conservation and management of Whooper Swans and their key habitats in East Asian regions,and the data are anticipated to make a particularly significant contribution toward developing detailed management plans for the conservation of their key habitats.

关键词： Key stopover sites Migration characteristics Migration route Migration strategy Tracking Whooper Swan

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Effect of Nozzle Geometry on the Flow Characteristics of Spiral Flow Generated through an Annular Slit

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Journal of Thermal Science 2007年第2期16卷 149-154页

作者： Shigeru MATSUO Tae-Hun KIM Toshiaki SETOGUCHI Heuy dong KIM Yeon-won lee Department of Mechanical Engineering Saga University1Honjo-machiSaga-shiSaga 840-8502Japan Graduate school of Science and Technology Saga University1Honjo-machiSaga shiSaga 840-8502Japan School of Mechanical Engineering Andong National University388Songchun-dongAndong 760749Korea School of Mechanical Engineering College of EngineeringPukyong National UniversitySan 100Young-Dang DongBusanKorea

与打漩的以前的研究比较流动，在螺线嘴产生的螺线流动有一些不同流动特征。产生它的速度不需要强迫的正切的动量并且从象长潜在的核心和低正切的速度那样的打漩的流动有一些不同优点。在这研究，在螺线嘴的流动特征上的嘴几何学的效果... 详细信息

与打漩的以前的研究比较流动，在螺线嘴产生的螺线流动有一些不同流动特征。产生它的速度不需要强迫的正切的动量并且从象长潜在的核心和低正切的速度那样的打漩的流动有一些不同优点。在这研究，在螺线嘴的流动特征上的嘴几何学的效果被实验和计算调查。作为结果，实验获得的流动特征与计算结果，份量上和品质上有一个令人满意的协议。

关键词：螺旋流流动特性喷嘴几何形状环形裂缝

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Coupling CO_(2)reduction with ethane aromatization for enhancing catalytic stability of iron-modified ZSM-5

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Journal of Energy Chemistry 2022年第3期31卷 210-217,I0007页

作者： Zhenhua Xie Elaine Gomez dong Wang Ji Hoon lee Tiefeng Wang Jingguang G.Chen Department of Chemical Engineering Columbia UniversityNew YorkNY 10027USA Chemistry Division Brookhaven National LaboratoryUptonNY 11973USA Department of Chemical Engineering Tsinghua UniversityBeijing100084 BeijingChina

The shale gas revolution and the carbon-neutrality goal are motivating the landscape toward the synthesis of value-added chemicals or fuels from underutilized ethane with the assistance of greenhouse gas CO_(2).Combining ethane aromatization with CO_(2)reduction offers an opportunity to directly produce liquid products for facile separation,storage,and *** the present work,Fe/ZSM-5 catalysts showed promise in the simultaneous CO_(2)reduction and ethane aromatization at atmospheric pressure and 873 *** catalysts were further investigated using X-ray diffraction(XRD)and X-ray absorption fine structure(XAFS)measurements under in-situ conditions,indicating that most of Fe species existed in the form of Fe oxides and a portion of Fe was incorporated into the ZSM-5 framework generating Lewis acid *** types of Fe species remained almost unchanged under reaction conditions,contributing to an enhanced aromatization activity of Fe/*** effects of CO_(2)and steam on the acid sites and in turn aromatization activity were also investigated by transient studies,which exhibited a reversible modification ***,CO_(2)was identified to be critical to enhance coke resistance and in turn catalyst *** work highlights the feasibility of using CO_(2)to assist the upgrading of abundant ethane from shale gas to aromatics over non-precious Fe-based zeolite catalysts.

关键词： Ethane CO_(2) Aromatization Fe-modified ZSM-5

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Supramolecular Polymer Intertwined Free-Standing Bifunctional Membrane Catalysts for All-Temperature Flexible Zn-Air Batteries

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Nano-Micro Letters 2022年第11期14卷 341-360页

作者： Nayantara K.Wagh Sambhaji S.Shinde Chi Ho lee Sung-Hae Kim dong-Hyung Kim Han-Don Um Sang Uck lee Jung-Ho lee Department of Materials Science and Chemical Engineering Hanyang UniversityAnsanRepublic of Korea Department of Applied Chemistry Center for Bionano Intelligence Education and ResearchHanyang UniversityAnsanRepublic of Korea Department of Chemical Engineering Kangwon National UniversityChuncheonGangwon 24341Republic of Korea

Rational construction of flexible free-standing electrocatalysts featuring long-lasting durability,high efficiency,and wide temperature tolerance under harsh practical operations are fundamentally significant for commercial zinc-air ***,3D flexible free-standing bifunctional membrane electrocatalysts composed of covalently cross-linked supramolecular polymer networks with nitrogen-deficient carbon nitride nanotubes are fabricated(referred to as PEMAC@NDCN)by a facile self-templated ***@NDCN demonstrates the lowest reversible oxygen bifunctional activity of 0.61 V with exceptional long-lasting durability,which outperforms those of commercial Pt/C and RuO_(2).Theoretical calculations and control experi-ments reveal the boosted electron transfer,electrolyte mass/ion transports,and abundant active surface site ***,the constructed alkaline Zn-air battery with PEMAC@NDCN air-cathode reveals superb power density,capacity,and discharge-charge cycling stability(over 2160 cycles)compared to the reference Pt/C+RuO_(2).Solid-state Zn-air batteries enable a high power density of 211 mW cm^(−2),energy density of 1056 Wh kg^(−1),stable charge-discharge cycling of 2580 cycles for 50 mA cm^(−2),and wide temperature tolerance from−40 to 70℃with retention of 86%capacity compared to room-temperature counterparts,illustrating prospects over harsh operations.

关键词： Flexible free-standing membrane electrocatalysts Supramolecular polymer Alkaline and flexible solid-state Zn-air batteries All-temperature operations High capacity and energy density

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Endoscopic management of occluded metal biliary stents:Metal versus 10F plastic stents

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World Journal of Gastroenterology 2010年第42期16卷 5347-5352页

作者： won Jae Yoon Ji Kon Ryu Jung won lee dong-won Ahn Yong-Tae Kim Yong Bum Yoon Sang Myung Woo Woo Jin lee Division of Gastroenterology Department of Internal MedicineSeoul National University College of Medicine101 Daehang-roJongno-guSeoul110-744South Korea Center for Liver Cancer National Cancer Center323 Ilsan-roIlsandong-guGoyang-siGyeonggi-do410-769South Korea

AIM:To compare the efficacy of self-expandable metal stents(SEMSs) with 10F plastic stents(PSs) in the endoscopic management of occluded ***:We retrospectively reviewed the medical records of 56 patients who underwent SEMS insertion for palliation of unresectable malignant biliary obstruction between 2000 and 2007 and subsequent endoscopic retrograde biliary drainage(ERBD) with SEMS or PS for initial SEMS occlusion between 2000 and ***:Subsequent ERBD with SEMS was performed in 29 patients and with PS in *** median time to stent occlusion after subsequent ERBD was 186 d in the SEMS group and 101 d in the PS group(P= 0.118).Overall median stent patency was 79 d for the SEMS group and 66 d for the PS group(P = 0.379).The mean number of additional biliary drainage procedures after subsequent ERBD in patients that died(n = 50) during the study period was 2.54 ± 4.12 for the SEMS group and 1.85 ± 1.95 for the PS group(P = 0.457).The mean total cost of additional biliary drainage procedures after the occlusion of subsequent SEMS or PS was $410.04 ± 692.60 for the SEMS group and $630.16 ± 671.63 for the PS group(P = 0.260).Tumor ingrowth as the cause of initial SEMS occlusion was the only factor associated with a shorter time to subsequent stent occlusion(101 d for patients with tumor ingrowth vs 268 d for patients without tumor ingrowth,P = 0.008).CONCLUSION:Subsequent ERBD with PSs offered similar patency and number of additional biliary drainage procedures compared to SEMSs in the management of occluded SEMS.

关键词： Stents Biliary tract neoplasms Obstructive jaundice Endoscopy Endoscopic retrograde cholangiopancreatography

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Safety of acupotomy in a real-world setting:A prospective pilot and feasibility study

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Journal of Integrative Medicine 2022年第6期20卷 514-523页

作者： Sang-Hoon Yoon Chan-Young Kwon Hee-Geun Jo Jae-Uk Sul Hyangsook lee Jiyoon won Su Jin Jeong Jun-Hwan lee Jungtae leem Chung-Yeon Korean Medicine Clinic Gangnam-guSeoul 06224Republic of Korea Department of Oriental Neuropsychiatry Dong-eui University College of Korean MedicineBusanjin-guBusan 47340Republic of Korea Department of Herbal Pharmacology College of Korean MedicineGachon University1342 Seongnamdae-roSujeong-guSeongnam 13120Republic of Korea Department of Korean Rehabilitation Medicine Dongshin University Korean Medicine HospitalGwangju 61619Republic of Korea Acupuncture and Meridian Science Research Center Kyung Hee UniversityDongdaemun-guSeoul 02447Republic of Korea Department of Science in Korean Medicine Graduate SchoolKyung Hee UniversityDongdaemun-guSeoul 02447Republic of Korea KM Science Research Division Korea Institute of Oriental MedicineDaejeon 34054Republic of Korea Department of Statistics Support Medical Science Research InstituteKyung Hee University Medical CenterDongdaemun-guSeoul 02447Republic of Korea Clinical Medicine Division Korea Institute of Oriental MedicineYuseong-guDaejeon 34054Republic of Korea Korean Medicine Life Science University of Science&Technology(UST)Campus of Korea Institute of Oriental MedicineYuseong-guDaejeon 34054Republic of Korea College of Korean Medicine Wonkwang UniversityIksanJeollabuk-do54538Republic of Korea

Objective:Acupotomy is a modern acupuncture method that includes modern surgical *** acupotomy is relatively more invasive than filiform acupuncture treatment,it is important to establish the safety profile of this *** justify further large-scale prospective observational studies,this preliminary study was performed to assess the feasibility of the approach and investigate the safety profile and factors potentially associated with adverse events(AEs).Methods:This was a prospective pilot study that assessed the feasibility of a large-scale forthcoming safety study on acupotomy treatment in a real-world *** feasibility(call response rate,dropout rate,response rate for each variable and recruitment per month)and safety profile(incidence,type,severity and causality of AEs,and factors potentially associated with AEs)were ***:A total of 28 participants joined the study from January to May 2018.A follow-up assessment was achieved in 258(1185 treatment points)out of 261 sessions(1214 treatment points).The response rate via telephone on the day after treatment was 87.3%.There were 8 systemic AEs in all the sessions(8/258;3.11%)and 27 local AEs on the total points treated(27/1185;2.28%).Severe AEs did not *** AE and local AE occurrence were associated with blade width and the number of needle stimulations per treatment ***:The findings suggest that it could be feasible to analyze the safety of acupotomy in a realworld ***,the primary data on some relevant AEs could be *** are planning large-scale prospective studies based on these *** registration:Clinical Research Information Service(CRIS)KCT0002849(https://***/cris/search/***/11487).

关键词： Acupotomy Acupuncture Safety Adverse effects Observational study Traditional Chinese medicine

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High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor

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Nano-Micro Letters 2022年第12期14卷 272-285页

作者： Seyeong Lim Dae Hwan lee Hyuntae Choi Yelim Choi dong Geon lee Sung Beom Cho Seonkyung Ko Jongmin Choi Younghoon Kim Taiho Park Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea Center of Materials Digitalization Korea Institute of Ceramic Engineering and Technology(KICET)Jinju 52851Republic of Korea Department of Materials Science and Engineering Ajou UniversitySuwon 16499Republic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea Department of Chemistry Kookmin UniversitySeoul 02707Republic of Korea

Perovskite quantum dots(PQDs)have been considered promising and effective photovoltaic absorber due to their superior optoelectronic properties and inherent material merits combining perovskites and ***,they exhibit low moisture stability at room humidity(20-30%)owing to many surface defect sites generated by inefficient ligand exchange *** surface traps must be re-passivated to improve both charge transport ability and moisture *** address this issue,PQD-organic semiconductor hybrid solar cells with suitable electrical properties and functional groups might dramatically improve the charge extraction and defect *** organic semiconductors are typically low-dimensional(1D and 2D)and prone to excessive self-aggregation,which limits chemical interaction with *** this work,we designed a new 3D star-shaped semiconducting material(Star-TrCN)to enhance the compatibility with *** robust bonding with Star-TrCN and PQDs is demonstrated by theoretical modeling and experimental *** Star-TrCN-PQD hybrid films show improved cubic-phase stability of CsPbI_(3)-PQDs via reduced surface trap states and suppressed moisture *** a result,the resultant devices not only achieve remarkable device stability over 1000 h at 20-30%relative humidity,but also boost power conversion efficiency up to 16.0%via forming a cascade energy band structure.

关键词： CsPbI3 quantum dots Star-shaped organic semiconductors Hybrid perovskite quantum dots Solar cell stability High-efficiency photovoltaics

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Missing Value Imputation Model Based on Adversarial Autoencoder Using Spatiotemporal Feature Extraction

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Intelligent Automation & Soft Computing 2023年第8期37卷 1925-1940页

作者： dong-Hoon Shin Seo-El lee Byeong-Uk Jeon Kyungyong Chung Department of Computer Science Kyonggi UniversitySuwon-siGyeonggi-do16227Korea Department of Public Safety Bigdata Kyonggi UniversitySuwon-siGyeonggi-do16227Korea Division of AI Computer Science and Engineering Kyonggi UniversitySuwon-siGyeonggi-do16227Korea

Recently,the importance of data analysis has increased significantly due to the rapid data *** particular,vehicle communication data,considered a significant challenge in Intelligent Transportation Systems(ITS),has spatiotemporal characteristics and many missing *** missing values in data lead to the decreased predictive performance of *** missing value imputation models ignore the topology of transportation net-works due to the structural connection of road networks,although physical distances are close in spatiotemporal image ***,the learning process of missing value imputation models requires complete data,but there are limitations in securing complete vehicle communication *** study proposes a missing value imputation model based on adversarial autoencoder using spatiotemporal feature extraction to address these *** proposed method replaces missing values by reflecting spatiotemporal characteristics of transportation data using temporal convolution and spatial *** results show that the proposed model has the lowest error rate of 5.92%,demonstrating excellent predictive *** this,it is possible to solve the data sparsity problem and improve traffic safety by showing superior predictive performance.

关键词： Missing value adversarial autoencoder spatiotemporal feature extraction

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Utilizing hybrid faradaic mechanism via catalytic and surface interactions for high-performance flexible energy storage system

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能源化学:英文版 2023年第8期83卷 541-548,I0013页

作者： dong-Gyu lee Hyeonggeun Choi Yeonsu Park Min-Cheol Kim Jong Bae Park Suok lee Younghyun Cho Wook Ahn A-Rang Jang Jung Inn Sohn John Hong Young-Woo lee Department of Energy Engineering Soonchunhyang UniversityAsan 31538Republic of Korea Division of Physics and Semiconductor Science Dongguk University-SeoulSeoul 04620Republic of Korea Jeonju Centre Korea Basic Science InstituteJeonju 54907Republic of Korea Division of Electrical Electronic and Control EngineeringKongju National UniversityCheonan 31080Republic of Korea School of Materials Science and Engineering Kookmin UniversitySeoul 02707Republic of Korea

Improving the capacitance and energy density is a significant challenge while developing practical and flexible energy storage system(ESS).Redox mediators(RMs),as redox-active electrolyte additives,can provide additional energy storing capability via electrochemical faradaic contribution on electrodes for high-performance flexible ***,determining effective material combinations between electrodes and RMs is essential for maximizing surface faradaic redox reactions for energy-storage *** this study,an electrode-RM system comprising heterostructured hybrid(carbon fiber(CF)/MnO_(2)) faradaic electrodes and iodine RMs(I-RMs) in a redox-active electrolyte is *** CF/MnO_(2)with the 1-RMs(CF/MnO_(2)-I) induces dominant catalytic faradaic interaction with the I-RMs,significantly enhancing the surface faradaic kinetics and increasing the overall energy-storage *** CF/MnO_(2)-I ESSs show a 12.6-fold(or higher) increased volumetric energy density of 793.81 mWh L^(-1)at a current of 10 μA relative to ESSs using CF/MnO_(2)without I-RMs(CF/MnO_(2)).Moreover,the CF/MnO_(2)-I retains 93.1% of its initial capacitance after 10,000 cycles,validating the excellent ***,the flexibility of the ESSs is tested at different bending angles(180° to 0°),demonstrating its feasibility for flexible and high-wear ***,CF/MnO_(2)electrodes present a practical material combination for high-performance flexible energy-storage devices owing to the catalytic faradaic interaction with I-RMs.

关键词： Energy storage system Redox mediators Faradaic electrodes Catalytic interactions Mechanical stability

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Bifunctional S-scheme hybrid heterojunction comprising CdS nanorods and BiOIO_(3) nanosheets for efficient solar-induced antibiotic degradation and highly-selective CO_(2) reduction

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Journal of Materials Science & Technology 2023年第30期161卷 74-87页

作者： dong-Eun lee Naresh Mameda Kasala Prabhakar Reddy B.Moses Abraham Wan-Kuen Jo Surendar Tonda School of Architecture CivilEnvironmental and Energy EngineeringKyungpook National University80 Daehak-roBuk-guDaegu 41566South Korea Department of Chemistry Koneru Lakshmaiah Education FoundationVaddeswaramGunturAndhra Pradesh 522302India Department of Chemistry and Biochemistry University of South Carolina631 Sumter StreetColumbiaSC 29208United States Department of Chemical Engineering Indian Institute of Technology KanpurKanpur 208016India

The development of a bifunctional photocatalyst that can be utilized for both energy conversion and envi-ronmental remediation is of great practical *** addition,an S-scheme charge transfer process can assist a photocatalyst in efficiently separating photoexcited electrons and holes while maintaining the strong reducibility and oxidizability of the former and the latter,*** developed a bifunctional S-scheme hybrid photocatalyst comprising CdS nanorods and BiOIO_(3)(BIO) nanosheets for efficient antibi-otic degradation and cocatalyst-and sacrificial reagent-free CO_(2) *** combination of visible-light-responsive one-dimensional(1D)CdS and UV-light-responsive 2D BIO resulted in a CdS/BIO hybrid photocatalyst with effective 1D/2D(line)interfacial contact and a broadened optical absorption ***,the CdS/BIO hybrid exhibited exceptional diclofenac degradation and mineralization as well as outstanding CO_(2) reduction activity for CO production,with 95.4%CO selectivity over H_(2)*** exceptional performance of the hybrid catalyst is primarily attributed to the accelerated photoexcited charge transfer caused by the 1D/2D line interfacial contact and the high charge separation and strong redox power of the separated charges,both of which stem from the effective S-scheme charge transfer *** addition,photocorrosion of CdS was substantially mitigated,resulting in the high photocat-alytic performance of the hybrid catalyst even after repeated test *** study provides insight into the rational design of bifunctional S-scheme hybrid photocatalysts for CO_(2) reduction and pollutant degra-dation.

关键词： CdS BiOIO_(3) Bifunctional photocatalyst S-scheme mechanism Antibiotic degradation CO_(2)reduction

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