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Flash‑Induced High‑Throughput Porous Graphene via Synergistic Photo‑Effects for Electromagnetic Interference Shielding

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Nano-Micro Letters 2023年第11期15卷 1-18页

作者： Jin Soo Lee Jeong‑Wook Kim Jae Hee Lee Yong Koo Son Young Bin Kim Kyoohee Woo Chanhee Lee il‑Doo Kim Jae Young Seok Jong Won Yu Jung Hwan Park keon Jae Lee Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak‑roYuseong‑guDaejeon 34141Republic of Korea School of Electrical Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak‑roYuseong‑guDaejeon 34141Republic of Korea Department of Printed Electronics Nano‑Convergence Manufacturing Systems Research DivisionKorea Institute of Machinery and Materials(KIMM)156 Gajeongbuk‑RoYuseong‑GuDaejeon 34103Republic of Korea Department of Mechanical System Design Engineering Seoul National University of Science and Technology232 Gongneung‑roNowon‑guSeoul 01811Republic of Korea Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering)Kumoh National Institute of Technology61 Daehak‑roGumiGyeongbuk 39177Republic of Korea

Porous 2D materials with high conductivity and large surface area have been proposed for potential electromagnetic interference(EMI)shielding materials in future mobility and wearable applications to prevent signal noise,transmission inaccuracy,system malfunction,and health ***,we report on the synthesis of lightweight and flexible flash-induced porous graphene(FPG)with excellent EMI shielding *** broad spectrum of pulsed flashlight induces photo-chemical and photo-thermal reactions in polyimide films,forming 5×10 cm^(2)-size porous graphene with a hollow pillar structure in a few *** resulting material demonstrated low density(0.0354 g cm^(−3))and outstanding absolute EMI shielding effectiveness of 1.12×10^(5) dB cm^(2) g^(−1).The FPG was characterized via thorough material analyses,and its mechanical durability and flexibility were confirmed by a bending cycle ***,the FPG was utilized in drone and wearable applications,showing effective EMI shielding performance for internal/external EMI in a drone radar system and reducing the specific absorption rate in the human body.

关键词： Porous graphene Flash lamp Photo-pyrolysis High-throughput Electromagnetic interference shielding

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Light-Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications

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Nano-Micro Letters 2024年第12期16卷 468-514页

作者： Jung Hwan Park Srinivas Pattipaka Geon-Tae Hwang Minok Park Yu Mi Woo Young Bin Kim Han Eol Lee Chang Kyu Jeong Tiandong Zhang Yuho Min Kwi-il Park keon Jae Lee Jungho Ryu Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering)Kumoh National Institute of Technology61Daehak-RoGumiGyeongbuk 39177Republic of Korea Department of Materials Science and Engineering Pukyong National University45Yongso-RoNam-GuBusan 48513Republic of Korea Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju 54896JeonbukRepublic of Korea School of Electrical and Electronic Engineering Harbin University of Science and TechnologyHarbin 150080People’s Republic of China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080People’s Republic of China Department of Materials Science and Metallurgical Engineering Kyungpook National University80 Daehak-RoBuk-GuDaegu 41566Republic of Korea School of Materials Science and Engineering Yeungnam UniversityDaehak-RoGyeongsan-Si 38541Gyeongsangbuk-doRepublic of Korea

This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage *** discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material *** addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and ***,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and *** the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.

关键词： Light Light-material interaction Nanomaterials Energy conversion and storage devices

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Duodenal obstruction following acute pancreatitis caused by a large duodenal diverticular bezoar

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World Journal of Gastroenterology 2012年第38期18卷 5485-5488页

作者： Ji Hun Kim Jae Hyuck Chang Sung Min Nam Mi Jeong Lee il Ho Maeng Jin Young Park Yun Sun im Tae Ho Kim il Young Park Sok Won Han Department of Internal Medicine College of Medicine The Catholic University of Korea Seoul 137-701 South Korea Department of Surgery College of Medicine The Catholic University of Korea Seoul 137-701 South Korea

Bezoars are concretions of indigestible materials in the gastrointestinal tract. It generally develops in patients with previous gastric surgery or patients with delayed gastric emptying. Cases of periampullary duodenal divericular bezoar are rare. Clinical manifestations by a bezoar vary from no symptom to acute abdominal syndrome depending on the location of the bezoar. Biliary obstruction or acute pancreatitis caused by a bezoar has been rarely reported. Small bowel obstruction by a bezoar is also rare, but it is a complication that requires surgery. This is a case of acute pancreatitis and subsequent duodenal obstruction caused by a large duodenal bezoar migrating from a periampullary diverticulum to the duodenal lumen, which mimicked pancreatic abscess or microperforation on abdominal computerized tomography. The patient underwent surgical removal of the bezoar and recovered completely.

关键词： Bezoar Diverticulum Pancreatitis Duodenal obstruction

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Larch growth across thermal and moisture gradients in the Siberian Mountains

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Journal of Mountain Science 2023年第1期20卷 101-114页

作者： KHARUK Viacheslav I. PETROV il'ya A. GOLYUKOV Alexey S. DVINSKAYA Maria L. im Sergei T. SHUSHPANOV Alexander S. Sukachev Institute of Forest Federal Scientific CenterRussian Academy of ScienceSiberian BranchAcademgorodok 50/28Krasnoyarsk660036Russia Siberian Federal University Svobodny str.79Krasnoyarsk660041Russia Reshetnev Siberian State University of Science and Technology Krasnoyarsky rabochy str.31Krasnoyarsk660014Russia Tomsk State University Lenina str.36Tomsk634050Russia

Climate-driven changes in the thermal and moisture regimes may variously influence different tree species growth and *** hypothesize that drought resistant Siberian larch(Larix sibirica Ledeb.)and precipitation-sensitive Siberian pine(Pinus sibirica Du Tour)responded differently to climate change along the elevational thermal and precipitation *** studied the influence of air temperature,precipitation,soil moisture,and atmospheric drought(indicated by the drought index SPEI)on larch and pine growth along the southward megaslope of the West Sayan *** found that since 2000 climate change resulted in increasing larch and pine radial growth index(GI)(c.1.5–3times)within treeline(2000–2300 m)and timberline(1900–2000 m)ecotones,*** high precipitation *** the forest-steppe ecotone(1100–1200 m)in which *** is the only species,larch GI stagnated or even *** total forested area increased since 2000 up to+50%in the high elevations,whereas in the low elevations(imberline,trees’GI was stimulated by summer ***,temperature increase in early spring reduces GI due to living tissue activation followed by tissue damage by *** forest-steppe,larch radial growth was mostly dependent on soil *** shifted dependence on moisture to the early dates of the growing *** droughts decreased GI within forest-steppe as well as within treeline,whereas the drought influence on both species within highlands was *** forest-steppe seedlings establishment was poor,whereas it was successful within treeline and *** climate change leads to stagnation or even decrease in Larix sibirica growth in the southern lowland *** combination with poor seedlings establishment,reduced growth threatens the transformation of open lowland forests into forest-steppe and steppe ***,in the highlands warming

关键词： Larch Siberian pine Climate influence on tree radial growth Mountain forests Treeline Timberline Foreststeppe Drought stress Moisture stress

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Optimally arranged TiO_(2)@MoS_(2) heterostructures with effectively induced built-in electric field for high-performance lithium-sulfur batteries

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Journal of Energy Chemistry 2023年第8期83卷 496-508,I0012页

作者： Jeongyoub Lee Changhoon Choi Jung Been Park Seungho Yu Jinho Ha Hyungsoo Lee Gyumin Jang Young Sun Park Juwon Yun Hayoung im Subin Moon Soobin Lee Jung-il Choi Dong-Wan Kim Jooho Moon Department of Materials Science and Engineering Yonsei UniversitySeoul 03722Republic of Korea School of Civil Environmental and Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea Energy Storage Research Center Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea School of Mathematics and Computing(Computational Science and Engineering) Yonsei UniversitySeoul 03722Republic of Korea

To overcome the serious technological issues affecting lithium-sulfur(Li-S) batteries,such as sluggish sulfur redox kinetics and the detrimental shuttle effect,heterostructure engineering has been investigated as a strategy to effectively capture soluble lithium polysulfide intermediates and promote their conversion reaction by integrating highly polar metal oxides with catalytically active metals ***,to fully exploit the outstanding properties of heterostructure-based composites,their detailed structure and interfacial contacts should be designed ***,optimally arranged TiO_(2)and MoS_(2)-based heterostructures(TiO_(2)@MoS_(2)) are fabricated on carbon cloth as a multifunctional interlayer to efficiently trap polysulfide intermediates and accelerate their redox *** to the synergistic effects between TiO_(2)and MoS_(2)and the uniform heterointerface distribution that induces the ideally oriented built-in electric field,Li-S batteries with TiO_(2)@MoS_(2)interlayers exhibit high rate capability(601 mA h g^(-1)at 5 C),good cycling stability(capacity-fade rate of 0.067% per cycle over 500 cycles at2 C),and satisfactory areal capacity(5.2 mA h cm^(-2)) under an increased sulfur loading of 5.2 mg cm^(-2).Moreover,by comparing with a MoS_(2)@TiO_(2)interlayer composed of reversely arranged heterostructures,the effect of the built-in electric field’s direction on the electrocatalytic reactions of polysulfide intermediates is thoroughly investigated for the first *** superior electrocatalytic activities of the rationally arranged TiO_(2)@MoS_(2)interlayer demonstrate the importance of optimizing the built-in electric field of heterostructures for producing high-performance Li-S batteries.

关键词： Lithium-sulfur batteries Shuttle effect TiO_(2)-MoS_(2)heterostructure engineering Built-in electric field Multifunctional interlayers

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Differences in Pandemic-Related Factors Associated with Alcohol and Substance Use among Korean Adolescents:Nationwide Representative Study

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Biomedical and Environmental Sciences 2023年第6期36卷 542-548页

作者： Hyunju Yon Sangil Park Jung U Shin Ai Koyanagi Louis Jacob Lee Smith Chanyang Min Jinseok Lee Rosie Kwon Guillaume Fond Laurent Boyer Sunyoung Kim Namwoo Kim Sang Youl Rhee Jae il Shin Dong keon Yon Ho Geol Woo Department of Medicine Kyung Hee University College of MedicineSeoulRepublic of Korea Department of Neurology Kyung Hee University Medical CenterSeoulRepublic of Korea Department of Dermatology CHA Bundang Medical CenterCHA University School of MedicineSeongnamRepublic of Korea Research and Development Unit Parc Sanitari Sant Joan de DeuCIBERSAMISCIIIBarcelonaSpain Catalan Institution for Research and Advanced Studies(ICREA) Pg.Lluis CompanysBarcelonaSpain Department of Physical Medicine and Rehabilitation Lariboisière-Fernand Widal HospitalAP-HPUniversity Paris CitéParisFrance Centre for Health Performance and WellbeingAnglia Ruskin UniversityCambridgeUK Center for Digital Health Medical Science Research InstituteKyung Hee University Medical CenterKyung Hee University College of MedicineSeoulRepublic of Korea Department of Biomedical Engineering Kyung Hee UniversityYonginRepublic of Korea Assistance Publique-Hôpitaux de Marseille(AP-HM) Aix-Marseille UniversityCEReSSHealth Service Research and Quality of Life CenterMarseilleFrance FondaMental Foundation CreteilFrance Department of Family Medicine Kyung Hee University College of MedicineSeoulRepublic of Korea Department of Psychiatry Seoul St.Mary's HospitalThe Catholic University of KoreaCollege of MedicineSeoulRepublic of Korea Department of Endocrinology and Metabolism Kyung Hee University School of MedicineSeoulRepublic of Korea Department of Pediatrics Yonsei University College of MedicineSeoulRepublic of Korea Department of Pediatrics Kyung Hee University College of MedicineSeoulRepublic of Korea

The coronavirus disease 2019(COVID-19)pandemic has raised concerns about the mental health and social well-being of youth,including its potential to increase or exacerbate substance use behaviors[1].Among adolescents,the COVID-19pandemic has resulted in limited face-to-face school contact and thus missed milestones in preventing alcohol and substance use.

关键词： Alcohol raised alcohol

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Newly developed autoimmune cholangitis without relapse of autoimmune pancreatitis after discontinuing prednisolone

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World Journal of Gastroenterology 2012年第41期18卷 5990-5993页

作者： Ji Hun Kim Jae Hyuck Chang Sung Min Nam Mi Jeong Lee il Ho Maeng Jin Young Park Yun Sun im Tae Ho Kim Chang Whan Kim Sok Won Han Department of Internal Medicine College of MedicineThe Catholic University of KoreaSeoul 137-701South Korea

A 57-year-old man presented with a 2-wk history of painless jaundice and weight Iossl He had a large ill- defined enhancing mass-like lesion in the uncinate pro- cess of the pancreas with stricture of the distal common bile duct. Aspiration cytology of the pancreatic mass demonstrated inflammatory cells without evidence of malignancy. Total serum immunoglobulin G level was slightly elevated, but IgG4 level was normal. After the 2-wk 40 mg prednisolone trial, the patient＇s symptoms and bilirubin level improved significantly. A follow-up computed tomography （CT） scan showed a dramatic resolution of the pancreatic lesion. A low dose steroid was continued. After six months he self-discontinued prednisolone for 3 wk, and was presented with jaundice again. ACT scan showed newly developed intrahepatic biliary dilatation and marked concentric wall thickening of the common hepatic duct and the proximal common bile duct without pancreatic aggravation. The patient＇ s IgG4 level was elevated to 2.51 g/L. Prednisolone was started again, after which his serum bilirubin level became normal and the thickening of the bile duct was resolved. This case suggests that autoimmune pancre- atitis can progress to other organs that are not involved at the initial diagnosis, even with sustained pancreatic remission.

关键词： Autoimmune disease Pancreatitis Cholan-gitis Prednisolone

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Retrospective analysis of extra-gastrointestinal stromal tumors

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World Journal of Gastroenterology 2015年第6期21卷 1845-1850页

作者： Jun Ho Yi Byeong-Bae Park Jung Hun Kang In Gyu Hwang Dong Bok Shin Sun Jin Sym Hee Kyung Ahn Soon il Lee Do Hyoung Lim keon Woo Park Young-Woong Won Sung Hee Lim Se Hoon Park Division of Hematology-Oncology Department of Internal Medicine Hanyang University Seoul Hospital Division of Hematology-Oncology Department of Internal Medicine Gyeongsang National University School of Medicine Division of Hematology-Oncology Department of Internal Medicine Chung-Ang University Hospital ChungAng University College of Medicine Division of Hematology-Oncology Department of Internal MedicineGachon University Gil Hospital Department of Hematology-Oncology Dankook University School of Medicine Division of Hematology and Oncology Department of Internal Medicine Hanyang University Guri Hospital Hanyang University College of Medicine Division of HematologyOncology Department of Medicine Sungkyunkwan University Samsung Medical Center Cancer hospital

Aim:To investigate the clinicopathologic features of patients with extra-gastrointestinal stromal tumors(EGISTs)in South ***:A total of 51 patients with an EGIST were *** clinicopathologic features,including sex,age,location,tumor size,histology,mitotic rate,immunohistochemical features,genetic status and survival data,were ***:The median age was 55 years(range:29-80years),and male:female ratio was 1:*** most common site was in the mesentery(n=15)followed by the retroperitoneum(n=13)and omentum(n=8).The median tumor size was 9.0 cm(range:2.6-30.0cm)and the median mitotic rate was 5.0/50HPF.(1/50-185/50).KIT was analyzed in 16,which revealed 10cases with wild-type KIT and 6 cases with an exon *** 51 patients,31 patients had undergone surgery,and 10 had unresectable disease and had taken palliative imatinib,which resulted in 22.7 mo of progression-free *** the patients who had undergone surgery,18 did not take adjuvant imatinib,and 8 of these were categorized as"high risk"according to the risk ***,the relapse-free survival was not different(P=0.157)between two ***:Because the biologic behaviors of GISTs differ according to the location of the tumor,a more stratified strategy is required for managing EGISTs including incorporation of molecular features.

关键词： Gastrointestinal stromal tumor Survival imatinib R

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SYNCRIP controls miR-137 and striatal learning in animal models of methamphetamine abstinence

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Acta Pharmaceutica Sinica B 2022年第8期12卷 3281-3297页

作者： Baeksun Kim Sung Hyun Tag Eunjoo Nam Suji Ham Sujin Ahn Juhwan Kim Doo-Wan Cho Sangjoon Lee Young-Su Yang Seung Eun Lee Yong Sik Kim il-Joo Cho Kwang Pyo Kim Su-Cheol Han Heh-In im Convergence Research Center for Diagnosis Treatment and Care System of Dementia(DTC)Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and Technology(UST)Seoul 02792Republic of Korea Center for Neuroscience KISTSeoul 02792Republic of Korea Animal Model Research Center Jeonbuk Department of Inhalation ResearchKorea Institute of Toxicology(KIT)Korea Research Institute of Chemical Technology(KRICT)Jeongeup 56212Republic of Korea Research Animal Resource Center KISTSeoul 02792Republic of Korea Department of Pharmacology Seoul National University College of MedicineSeoul 03080Republic of Korea Center for BioMicrosystems KISTSeoul 02792Republic of Korea Department of Applied Chemistry Kyung Hee UniversityGyeonggi-do 17104Republic of Korea

Abstinence from prolonged psychostimulant use prompts stimulant withdrawal *** adaptations within the dorsal striatum have been considered the main hallmark of stimulant abstinence. Here we explored striatal miRNA-target interaction and its impact on circulating miRNA marker as well as behavioral dysfunctions in methamphetamine(MA) abstinence. We conducted miRNA sequencing and profiling in the nonhuman primate model of MA abstinence, followed by miRNA qPCR,LC-MS/MS proteomics, immunoassays, and behavior tests in mice. In nonhuman primates, MA abstinence triggered a lasting upregulation of miR-137 in the dorsal striatum but a simultaneous downregulation of circulating miR-137. In mice, aberrant increase in striatal miR-137-dependent inhibition of SYNCRIP essentially mediated the MA abstinence-induced reduction of circulating miR-137. Pathway modeling through experimental deduction illustrated that the MA abstinence-mediated downregulation of circulating miR-137 was caused by reduction of SYNCRIP-dependent miRNA sorting into the exosomes in the dorsal striatum. Furthermore, diminished SYNCRIP in the dorsal striatum was necessary for MA abstinence-induced behavioral bias towards egocentric spatial learning. Taken together, our data revealed circulating miR-137 as a potential blood-based marker that could reflect MA abstinence-dependent changes in striatal miR-137/SYNCRIP axis, and striatal SYNCRIP as a potential therapeutic target for striatum-associated cognitive dysfunction by MA withdrawal syndrome.

关键词： Methamphetamine Abstinence Withdrawal Striatum miR-137 SYNCRIP Biomarker Behavior

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Optimization of ionic liquid-based microwave-assisted extraction of polyphenolic content from Peperomia pellucida (L) kunth using response surface methodology

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Asian Pacific Journal of Tropical Biomedicine 2017年第7期7卷 660-665页

作者： Islamudin Ahmad Arry Yanuar Kamarza Mulia Abdul Mun'im Department of Pharmaceutical Sciences Faculty of Pharmacy Mulawarman University Samarinda East Kalimantan Indonesia Department of Pharmaceutical Sciences Faculty of Pharmacy Universitas Indonesia Depok 16424 West Java Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Depok 16424 West Java Indonesia

Objective: To optimize the ionic liquid based microwave-assisted extraction (il-MAE) of polyphenolic content from Peperomia pellucida (L) Kunth. Methods: The il-MAE factors as experimental design parameters, including microwave power, extraction time, ionic liquid concentration, and liquid–solid ratio had been involved. Response surface methodology and Box–Behnken design were used to obtain predictive model (multivariate quadratic regression equation) and optimization of the extraction process. The response surface was analyzed by using the yields of total polyphenolic content as response value. Results: Based on the obtained results the optimum extraction condition, including microwave power of 30% Watts, extraction time of 18.5 min, the ionic liquid concen-tration of 0.79 mol/L, and the liquid–solid ratio of 10.72 mL/g 1-Buthyl-3-methylimidazolium tetrafluoroborate ([bmim]BF4) as a solvent was selected. The regression model was obtained to predicts the yields from Peperomia pellucida:Y = 30.250 – 1.356X1 + 2.655X2 + 2.252X3 – 0.565X4 + 0.990 X1X3 – 8.172 X1X4 – 3.439 X3X4 – 4.178 X12 – 3.210 X32 – 6.786 X42 – 7.290 X12X3 + 5.575 X1X32 – 4.843 X32X4 with R2 = 0.82519. Scale-up confirmation test was obtained the maximum yields of total polyphenolics content with the amount of 31.1725μg GAE/g. Conclusions: The il-MAE method produced a higher extraction polyphenolic and performed rapidly, easily and efficiently.

关键词： Peperomia pellucida (L) Kunth 1-buthyl-3-methylimidazolium Tetrafluoroborate Response surface methodology Box–Behnken design Polyphenolic content

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