检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

海啸后的皮肤病

世界核心医学期刊文摘（皮肤病学分册） 2006年第11期2卷 26-27页

作者： Lee S.H. choi c.p. Eun H.c. Kwon O.S. 党倩丽 Department of Dermatology Seoul National University College of Medicine 28Yongon-DongChongno-GuSeoul 110-744 South Korea

Background: On December 26, 2004, the biggest earthquake for 40 years, measuring 9.0 on the Richter scale, triggered a tsunami that pounded the coastal areas of South Asia and East Africa. The effects of the tsunami on skin conditions have not been evaluated. Objective: To determine the influence of the tsunami on skin conditions by evaluating the skin problems of patients presenting at hospitals after the tsunami. Methods: Between 5 and 25 January 2005, two dermatologists evaluated patients who complained of skin problems at an outpatient clinic and emergency room of a general hospital in Banda Aceh, Aceh province, Indonesia. Results: The total number of patients that presented during the study period was 235 (131 males and 104 females), and they had a total of 265 skin problems. In terms of age distribution, most subjects were in their fourth decade (23.0%), followed by the third (22.6%) and fifth decade (16.6%). The most prevalent skin problems were infections-infestations (32.5%), followed by eczemas (29.8%) and traumatic skin disorders (29.4%). In males, traumatic skin disorders were most common. The great majority of infection-infestation cases involved superficial fungal infections. contact dermatitis accounted for three-quarters of eczema cases, and mainly involved the arms (40.0%) and legs (27.1%). The majority of traumatic skin disorders were lacerations, punctures and penetrations, and the feet (44.7%) and hands (18.8%) were most frequently affected. conclusions: Unhygienic conditions, exposure to a hazardous environment and contact with various objects during and after the tsunami probably increased the prevalence of infections-infestations, traumatic skin disorders and contact dermatitis. To prevent these problems and associated secondary bacterial infections, health-related education and early medical management are required.

关键词：皮肤状况班达亚齐浅部真菌感染湿疹患者皮肤科医生医院患者继发性细菌感染综合医院年龄分布

Tailoring local structures of atomically dispersed c.p.er sites for highly selective cO_(2) electroreduction

在线全文

学校读者我要写书评

暂无评论

carbon Energy 2024年第4期6卷 79-90页

作者： Kyung‐Jong Noh Byoung Joon park Ying Wang Yejung choi Sang‐Hoon You Yong‐Tae Kim Kug‐Seung Lee Jeong Woo Han Department of chemical Engineering Pohang University of Science and Technology(POSTECH)PohangGyeongbukRepublic of Korea Department of Materials Science and Engineering Pohang University of Science and Technology(POSTECH)PohangGyeongbukRepublic of Korea pohang Accelerator Laboratory(pAL) Beamline DivisionPohangGyeongbukRepublic of Korea

Atomically‐dispersed c.p.er sites coordinated with nitrogen‐doped carbon(cu–N–c)can provide novel possibilities to enable highly selective and active electrochemical cO_(2) reduction ***,the construction of optimal local electronic structures for nitrogen‐coordinated cu sites(cu–N_(4))on carbon remains ***,we synthesized the cu–N–c catalysts with atomically‐dispersed edge‐hosted cu–N_(4) sites(cu–N_(4)c_(8))located in a micropore between two graphitic sheets via a facile method to control the concentration of metal ***‐hosted cu–N_(4)c_(8) catalysts outperformed the previously reported M–N–c catalysts for cO_(2)‐to‐cO conversion,achieving a maximum cO Faradaic efficiency(FEcO)of 96%,a cO current density of–8.97 mA cm^(–2) at–0.8 V versus reversible hydrogen electrode(RHE),and over FEcO of 90%from–0.6 to–1.0 V versus *** studies revealed that the micropore of the graphitic layer in edge‐hosted cu–N_(4)c_(8) sites causes the d‐orbital energy level of the cu atom to shift upward,which in return decreases the occ.p.ncy of antibonding states in the*cOOH *** research suggests new insights into tailoring the locally coordinated structure of the electrocatalyst at the atomic scale to achieve highly selective electrocatalytic reactions.

关键词： atomic local structure density functional theory electrochemical cO_(2)reduction metal nitrogen‐doped carbon single‐atom catalyst

Adiponectin restores the obesity-induced impaired immunomodulatory function of mesenchymal stromal cells via glycolytic reprogramming

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta pharmaceutica Sinica B 2024年第1期14卷 273-291页

作者： Duc-Vinh pham Thi-Kem Nguyen Bao-Loc Nguyen Jong-Oh Kim Jee-Heon Jeong Inho choi pil-Hoon park Department of pharmacology Hanoi University of PharmacyHanoi 100000Viet Nam college of pharmacy Yeungnam UniversityGyeongsan 38541Republic of Korea Department of Medical Biotechnology Yeungnam UniversityGyeongsan 38541Republic of Korea Research Institute of cell culture Yeungnam UniversityGyeongsan 38541Republic of Korea Department of precision Medicine School of MedicineSungkyunkwan UniversitySuwon 16419Republic of Korea

Obesity has been known to negatively modulate the life-span and immunosuppressive potential of mesenchymal stromal cells(MSc).However,it remains unclear what drives the compromised potency of obese *** this study,we examined the involvement of adiponectin,an adipose tissuederived hormone,in obesity-induced impaired therapeutic function of ***-induced obesity leads to a decrease in serum adiponectin,accompanied by impairment of survival and immunomodulatory effects of adipose-derived MSc(ADSc).Interestingly,priming with globular adiponectin(gAc.p.improved the immunomodulatory potential of obese *** effects were also observed in lean *** addition,gAc.p.potentiated the therapeutic effectiveness of ADSc in a mouse model of DSS-induced ***,while obesity inhibited the glycolytic c.p.city of MSc,gAc.p.treatment induced a metabolic shift toward glycolysis through activation of adiponectin rec.p.or type 1/p38 MApK/hypoxia inducible factor-1a *** findings suggest that activation of adiponectin signaling is a promising strategy for enhancing the therapeutic efficacy of MSc against immune-mediated disorders.

关键词： Adiponectin Adipose-derived stromal cells colitis Glycolytic induction HIF1a Immunomodulation Mesenchymal stromal cells Obesity

Submicron Ag-coated cu particles as filler in sintering paste: Suppression of Ag dewetting and improvement of sinterability by surface modification using stearic acid

在线全文

学校读者我要写书评

暂无评论

Transactions of Nonferrous Metals Society of china 2024年

作者： Yeongjung Kim Yong-Sung Eom Kwang-Seong choi Jong-Hyun Lee Department of Materials Science and Engineering Seoul National University of Science and Technology 232 Gongneung-ro Low-carbon Integration Tech creative Research Section ETRI 218 Gajeong-ro Materials Research Institute for Future convergence Seoul National University of Science and Technology 232 Gongneung-ro

Four types of submicron Ag-coated cu particles with different Ag contents were prepared as sintering paste fillers， and the Ag contents of the particles were measured to be 10， 20， 30， and 40 wt%. Four types of particles （in order of increasing Ag content: A10， A20， A30， and A40） were surface-modified with stearic acid， to suppress the Ag shell dewetting and improve sinterability. The surface-modified particles were mixed with a polyol-based solvent to fabricate a resin-free paste. Subsequently， the pastes were screen-printed onto a slide glass and sintered at 250 ℃ in a nitrogen atmosphere for 1–10 min to form an electrode. The electrical resistivity of the sintered film as a function of sintering time was measured using a four-point probe. All the four surface-modified cu@Ag particles with different Ag contents exhibited decreased electrical resistivity. particularly， the largest difference in values after and before the surface modification was observed for A40 with the highest Ag content; the electrical resistivities of the initial and surface-modified particles were 1.51×10-4and 6.67×10-5Ω·cm， respectively， after sintering for 10 min. The findings of this study confirmed that the surface modification using stearic acid effectively suppressed the dewetting of the Ag shell and improved the sinterability of the submicron cu@Ag particles.

关键词：

Stable immobilization of lithium polysulfides using three-dimensional ordered mesoporous Mn2O3 as the host material in lithium-sulfur batteries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

carbon Energy 2024年第6期6卷 99-112页

作者： Sung Joon park Yun Jeong choi Hyun-seung Kim Min Joo Hong Hongjun chang Janghyuk Moon Young-Jun Kim Junyoung Mun Ki Jae Kim Department of Energy Science Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea Department of Energy Engineering Konkuk UniversitySeoulRepublic of Korea Advanced Batteries Research center Korea Electronic Technology InstituteSeongnamRepublic of Korea Department of Future Energy Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Department of Energy Systems Engineering Chung-Ang UniversitySeoulRepublic of Korea SKKU Advanced Institute of Nanotechnology Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwonRepublic of Korea

Lithium-sulfur batteries(LSBs)have drawn significant attention owing to their high theoretical discharge c.p.city and energy ***,the dissolution of long-chain polysulfides into the electrolyte during the charge and discharge process(“shuttle effect”)results in fast c.p.city fading and inferior electrochemical *** this study,Mn_(2)O_(3)with an ordered mesoporous structure(OM-Mn_(2)O_(3))was designed as a cathode host for LSBs via KIT-6 hard templating,to effectively inhibit the polysulfide shuttle ***-Mn_(2)O_(3)offers numerous pores to confine sulfur and tightly anchor the dissolved polysulfides through the combined effects of strong polar-polar interactions,polysulfides,and sulfur chain *** OM-Mn_(2)O_(3)/S composite electrode delivered a discharge c.p.city of 561 mAh g-1 after 250 cycles at 0.5 c owing to the excellent performance of OM-Mn_(2)O_(3).Furthermore,it retained a discharge c.p.city of 628mA h g-1 even at a rate of 2 c,which was significantly higher than that of a pristine sulfur electrode(206mA h g-1).These findings provide a prospective strategy for designing cathode materials for high-performance LSBs.

关键词： host material lithium-sulfur battery ordered mesoporous structure shuttle effect transition-metal oxides

Stable operation of highly loaded pure Si-Fe anode under ambient pressure via carboxy silane-directed robust solid electrolyte interphase

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy chemistry 2024年第7期94卷 568-576页

作者： Guntae Lim Dong Guk Kang Hyeon Gyu Lee Yen Hai Thi Tran Kihun An Junghyun choi Kwang chul Roh Do Youb Kim Seung-Wan Song Department of chemical Engineering&Applied chemistry chungnam National University Daejeon 34134Republic of Korea Energy Storage Materials center Korea Institute of Ceramic Engineering&TechnologyJinju 52851Republic of Korea Advanced Energy Materials Research center Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea

Incorporation of higher content Si anode material beyond 5 wt% to Li-ion batteries(LIBs)is challenging,owing to large volume change,swelling,and solid electrolyte interphase(SEI)instability ***,a strategy of diacetoxydimethylsilane(DAMS)additive-directed SEI stabilization is proposed for a stable operation of Si-0.33FeSi_(2)(named as Si-Fe)anode without graphite,which provides siloxane inorganics and organics enrichment that compensate insufficient passivation of fluoroethylene carbonate(FEc)additive and reduce a dependence on *** stable cycling performance of highly loaded(3.5 mA h cm^(-2))pure Si-Fe anode is achieved with 2 wt%DAMS combined with 9 wt%FEc additives under ambient pressure,yielding high c.p.city 1270 mA h g^(-1)at 0.5 c and significantly improved c.p.city retention of 81% after 100 cycles,whereas short circuit and rapid c.p.city fade occur with FEc only ***-directed robust SEI layer dramatically suppresses swelling and particles crossover through separator,and therefore prevents short circuit,demonstrating a possible operation of pure Si or Sidominant anodes in the next-generation high-energy-density and safe LIBs.

关键词： High-energy Li-ion battery pure Si-Fe anode without graphite Silane additive SEI layer Suppressed swelling

Unravelling the role of the combined effect of metallic charge transfer channel and SiO_(x) overlayer in the Zr/Si-Fe_(2)O_(3):Au:SiO_(x) nanorod arrays to boost photoelectrochemical water splitting

在线全文

学校读者我要写书评

暂无评论

Journal of Energy chemistry 2024年第3期90卷 370-379,I0009页

作者： Tae Sik Koh periyasamy Anushkkaran Love Kumar Dhandole Mahadeo A.Mahadik Weon-Sik chae Hyun Hwi Lee Sun Hee choi Jum Suk Jang Division of Biotechnology SafetyEnvironment and Life Science InstituteCollege of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54896Republic of Korea Department of Integrative Environmental Biotechnology College of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54596Republic of Korea Extreme Materials Research center Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Daegu center Korea Basic Science InstituteDaegu 41566Republic of Korea pohang Accelerator Laboratory Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

Hematite(α-Fe_(2)O_(3)) based photoanodes have been extensively studied due to various intriguing features that make them viable candidates for a photoelectrochemical(pEc) water splitting ***,we propose a Zr-doped Fe_(2)O_(3) photoanode decorated with facilely spin-coated Au nanoparticles(Nps) and microwave-assisted attached Si co-doping in conjunction with a SiO_(x) overlayer that displayed a remarkable photocurrent density of 2.01 mA/cm^(2) at 1.23 V *** kinetic dynamics at the photoelectrode/-electrolyte interface was examined by employing systematic electrochemical *** Au Nps played a dual role in increasing pEc water ***,the Schottky interface that was formed between Au Nps and Zr-Fe_(2)O_(3) lectrode ensured the prevention of electron flow from the photoanode to the metal,increasing the number of available charges as well as suppressing surface charge ***,Au extracted photoholes from the bulk of the Zr-Fe_(2)O_(3) and transported them to the outer SiO_(x) overlayer,while the SiO_(x) overlayer efficiently collected the photoholes and promoted the hole injection into the ***,Si co-doping enhanced bulk conductivity by reducing bulk charge transfer resistance and improving charge carrier *** study outlines a technique to design a metallic charge transfer path with an overlayer for solar energy conversion.

关键词： Hematite Microwave attachment Au nanoparticles SiO_(x) overlayer Water splitting

Importance of dietary supplementation of soluble and insoluble fibers to sows subjected to high ambient temperatures during late gestation and effects on lactation performance

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2024年第1期16卷 73-83页

作者： Seung Min Oh Abdolreza Hosseindoust Sang Hun Ha Jun Young Mun Joseph Moturi Habeeb Tajudeen Yo Han choi Su Hyup Lee Jin Soo Kim Gyeongbuk Livestock Research Institute Department of Animal Industry convergence Kangwon National University Swine Division National Institute of Animal Science Rural Development Administration Department of Swine Science Korea National University of Agriculture and Fisheries

Heat stress adversely affects sows' performance, which can be improved by applying proper nutritional strategies. This study was conducted to investigate the interactive effects of dietary fiber levels and sources on sows' reproductive performance, metabolic response during gestation, and the carry-over influence on litter performance in the lactation period during heat stress(average room temperature of 27.1°c). Fifty-four multiparous sows(Landrace × Yorkshire; initial body weight of 236.3 ± 16 kg; 2, 3and 4 parities) at d 90 of gestation were assigned to a 2 × 3 factorial arrangement(9 sows/treatment),involving 2 dietary fiber levels(4.5% and 6% crude fiber) and 3 dietary fiber sources(wheat bran [WB],palm kernel meal [pK], and beet pulp [Bp]). Sows fed the Bp diet had highest(p constipation index and lowest(p piglet weight(p = 0.041) and litter weight(p p treatment compared to pK treatment. Sows in the Bp treatment showed the greatest(p crude protein and neutral detergent fiber. The fecal concentration of acetate was the lowest(p pK treatment. Total short-chain fatty acid production was increased in the WB and Bp treatments compared with the pK. Sows in the Bp treatment showed the lowest(p = 0.036) hair cortisol. The blood insulin concentration of sows was higher(p = 0.026) in the high fiber(6%) treatment compared with the low fiber(4.5%) treatment at 90 min and120 min after the meal. The concentration of phthalic acid, succinic acid, phenylethylamine, hydrocinnamic acid, iron, linoleic acid, glycerol, ketone, and formamide were increased(p p treatment compared with the WB. The Bp treatment with high soluble fiber content improved the constipation index, farrowing duration, and litter performance, while high insoluble fibers increased sows comfort and reduced stress factors including respiratory rate and rectal

关键词： Soluble fiber Insoluble fiber Beet pulp Wheat bran palm kernel Metabolites

Trifunctional robust electrocatalysts based on 3D Fe/N-doped carbon nanocubes enc.p.ulating co4N nanoparticles for efficient battery-powered water electrolyzers

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

carbon Energy 2024年第6期6卷 124-139页

作者： Hyung Wook choi Hongdae Lee Jun Lu Seok Bin Kwon Dong In Jeong Beum Jin park Jiwon Kim Bong Kyun Kang Gun Jang Dae Ho Yoon Ho Seok park SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea School of chemical Engineering Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea Department of Electronic Materials Devicesand Equipment EngineeringSoonchunhyang UniversityAsan CityChungnamRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

Herein,we have designed a highly active and robust trifunctional electrocatalyst derived from prussian blue analogs,where co_(4)N nanoparticles are enc.p.ulated by Fe embedded in N-doped carbon nanocubes to synthesize hierarchically structured co_(4)N@Fe/N-c for rechargeable zinc-air batteries and overall water-splitting *** confirmed by theoretical and experimental results,the high intrinsic oxygen reduction reaction,oxygen evolution reaction,and hydrogen evolution reaction activities of co_(4)N@Fe/N-c were attributed to the formation of the heterointerface and the modulated local electronic ***,co_(4)N@Fe/N-c induced improvement in these trifunctional electrocatalytic activities owing to the hierarchical hollow nanocube structure,uniform distribution of co_(4)N,and conductive enc.p.ulation by Fe/***,the rechargeable zinc-air battery with co_(4)N@Fe/N-c delivers a high specific c.p.city of 789.9 mAh g-1 and stable voltage profiles over 500 ***,the overall water electrolyzer with co_(4)N@Fe/N-c achieved better durability and rate performance than that with the pt/c and IrO2 catalysts,delivering a high Faradaic efficiency of 96.4%.Along with the great potential of the integrated water electrolyzer powered by a zinc-air battery for practical applications,therefore,the mechanistic understanding and active site identification provide valuable insights into the rational design of advanced multifunctional electrocatalysts for energy storage and conversion.

关键词： battery-powered electrolyzers hierarchical structure prussian blue analog trifunctional electrocatalyst zinc-air battery