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Deduction of a meteorological phenology indicator from reconstructed MODIS LST imagery

Journal of Forestry Research 2020年第6期31卷 2205-2216页

作者： Chi hong Lim Song Hie Jung nam Shin Kim Chang Seok Lee Department of Bio and Environmnetal Technology Graduate SchoolSeoul Women’s UniversitySeoul Republic of Korea Research Team on Ecological and Natural Map National Institute of EcologySeocheon Choongnam Republic of Korea Department of Bio and Environmnetal Technology Seoul Women’s UniversitySeoul Republic of Korea

Phenology is a valuable attribute of vegetation to assess the biological impacts from climate change.A challenge of phenological research is to obtain information on both high temporal resolution and fine spatial scale ***,we constructed an air temperature map based on temporal merging and spatial interpolation algorithms to overcome the cloud-related problem from the MODIS LST ***,we derived the accumulated growing degree days(AGDD)from the constructed mean air temperature map to use as a meteorological ***,we verified the indicator with the seasonal mean air temperature and the green-up date of a Quercus mongolica forest determined from the field-based *** AGDD threshold for each *** forest when the first leaf has unfolded was detected from the EXG trajectory extracted from digital camera images.A comparison between meteorological and MODIS-derived AGDD showed good agreement between *** was also high consistency between DoYs extracted from AGDD and EVI based on curvature K for *** forests of 30 sampling sites throughout South *** results prove that microclimatic factors such as elevation,waterbody,and land-use intensity were faithfully reflected in the reconstructed ***,the results of this study could be applied effectively in areas where microclimatic variation is very severe and for monitoring phenology of undergrowth,which is difficult to detect from reflectance imaging.

关键词： Climate change Digital camera Growing degree days MODIS Phenology Quercus mongolica

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SnO2@Co3O4 hollow nano-spheres for a Li-ion battery anode with extraordinary performance

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Nano Research 2014年第8期7卷 1128-1136页

作者： Won-sik Kim Yoon Hwa hong-Chan Kim Jong-Hyun Choi Hun-Joon Sohn Seong-Hyeon hong Department of Materials Science and Engineering and Research Institute of Advanced Materials Seoul National University Seoul151-744 Republic of Korea

SnO2@Co3O4 hollow nano-spheres have been prepared using the template-based sol-gel coating technique and their electrochemical performance as an anode for lithium-ion battery (LIB) was investigated. The size of synthesized hollow spheres was about 50 nm with the shell thickness of 7–8 nm. The fabricated SnO2@Co3O4 hollow nano-sphere electrode exhibited an extraordinary reversible capacity (962 mAh·g−1 after 100 cycles at 100 mA·g−1), good cyclability, and high rate capability, which was attributed to the Co-enhanced reversibility of the Li2O reduction reaction during cycling.

关键词：电化学性能锂离子电池纳米球四氧化三钴二氧化锡电池负极中空 Co3O4

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On extensions of matrix rings with skew Hochschild 2-cocycles

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Frontiers of Mathematics in China 2016年第4期11卷 869-900页

作者： Chan Yong hong nam Kyun KIM Tai Keun KWAK Yang LEE Department of Mathematics and Research Institute for Basic Sciences Kyung Hee University Seoul 02447 Korea School of Basic Sciences Hanbat National University Daejeon 34158 Korea Department of Mathematics Daejin University Pocheon 11159 Korea Department of Mathematics Pusan National University Pusan 46241 Korea

We study structures of endomorphisms and introduce a skew Hochschild 2-cocycles related to Hochschild 2-cocycle. We moreover define skew Hochschild extensions equipped with skew Hochschild 2-cocycles, and then we examine uniquely clean, Abelian, directly finite, symmetric, and reversible ring properties of skew Hochschild extensions and related ring systems. The results obtained here provide various kinds of examples of such rings. Especially, we give an answer negatively to the question of H. Lin and C. Xi for the corresponding Hochschild extensions of reversible （or semicommutative） rings. Finally, we establish three kinds of Hochschild extensions with Hochschild 2-cocycles and skew Hochschild 2-cocycles.

关键词： Skew Hochschild extensions matrix rings skew triangular matrix rings (uniquely) clean rings symmetric rings

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Artificial Nanoscale Erythrocytes from Clinically Relevant Compounds for Enhancing Cancer Immunotherapy

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Nano-Micro Letters 2020年第7期12卷 156-174页

作者： Wenquan Ou Kang sik nam Dae Hoon Park Jungho Hwang Sae Kwang Ku Chul Soon Yong Jong Oh Kim Jeong Hoon Byeon College of Pharmacy Yeungnam UniversityGyeongsan 38541Republic of Korea School of Mechanical Engineering Yonsei UniversitySeoul 03722Republic of Korea College of Korean Medicine Daegu Haany UniversityGyeongsan 38610Republic of Korea School of Mechanical Engineering Yeungnam UniversityGyeongsan 38541Republic of Korea

Because of enhanced e cacy and lower side e ects,cancer immunotherapies have recently been extensively investigated in clinical trials to overcome the limitations of conventional cancer *** engineering attempts have been made to build nanosystems even including stimulus nanomaterials for the e cient delivery of antigens,adjuvants,or anticancer drugs to improve immunogenic cancer cell death,this requires huge R&D e orts and investment for clinically relevant findings to be approved for translation of the *** this end,in this study,an air–liquid two-phase electrospray was developed for stable bubble pressing under a balance between mechanical and electrical parameters of the spray to continuously produce biomimetic nanosystems consisting of only clinically relevant compounds[paclitaxel-loaded fake blood cell Eudragit particle(Eu-FBCP/PTX)]to provide a conceptual leap for the timely development of translatable chemo-immunotherapeutic *** was pursued as the e cacy of systems for delivering anticancer agents that has been mainly influenced by nanosystem shape because of its relevance to transporting behavior to organs,blood circulation,and cell–membrane *** resulting Eu-FBCP/PTX nanosystems exhibiting phagocytic and micropinocytic uptake behaviors can confer better e cacy in chemo-immunotherapeutics in the absence and presence of anti-PD-L1 antibodies than similar sized PTX-loaded spherical Eu particles(Eu-s/PTX).

关键词： Cancer immunotherapies Air–liquid two-phase electrospray Paclitaxel-loaded fake blood cell Eudragit particle Translatable chemo-immunotherapeutic nanosystems Anti-PD-L1 antibodies

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Effect of nanoclay on properties of porous PVdF membranes

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Transactions of Nonferrous Metals Society of China 2011年第A1期21卷 141-147页

作者： Hae-Young HWANG Deuk-Ju KIM Hyung-Jun KIM Young-Taik hong Sang-Yong nam School of Materials Science and Engineering Engineering Research Institute i-Cube Center Gyeongsang National University Fuel Cell Research Center Korea Institute of Science and Technology Seoul 136-791 Korea Energy Material Research Center Korea Research Institute of Chemical Technology Daejeon 305-600 Korea

The main requirements for battery separators are high porosity which can serve pathways of lithium ion and space for gel electrolytes to impregnate in a membrane and mechanical strength to allow easy handling for battery assembly. Generally, it appears the trade-off relationship between the porosity and mechanical strength of the membrane. PVdF composite membranes containing nano-size clays were used to improve the mechanical strength of the membrane without affecting the membrane porosity. The composite membranes were prepared by phase inversion method controlling the membrane preparation conditions such as retention time. The resultant membranes show increased mechanical properties with similar membrane porosity around 80 % compared to the pristine PVdF membrane. Incorporation of nonoclay can be considered as an effective method to improve the mechanical strength in porous membrane supports, especially in a separator.

关键词：聚偏氟乙烯膜机械性能多孔膜纳米粘土机械强度高孔隙率电池隔膜制备条件

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Interleukin-24 is correlated with differentiation and lymph node numbers in rectal cancer

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World Journal of Gastroenterology 2011年第9期17卷 1167-1173页

作者： Youngmin Choi Mee-Sook Roh Young-Seoub hong Hyung-sik Lee Won-Joo Hur Department of Radiation Oncology Dong-A University School of Medicine Department of Pathology Dong-A University School of Medicine Department of Preventive Medicine Dong-A University School of Medicine

AIM:To assess the significance of interleukin(IL)-24 and vascular endothelial growth factor(VEGF)expression in lymph-node-positive rectal cancer. METHODS:Between 1998 and 2005,90 rectal adenocarcinoma patients with lymph node involvement were *** patients received radical surgery and postoperative pelvic chemoradiotherapy of 50.4-54.0 *** of 5-fluorouracil and leucovorin or levamisole was given intravenously during the first and last week of radiotherapy,and then monthly for about 6 *** of IL-24 and VEGF was evaluated by immunohistochemical staining of surgical specimens, and their relations with patient characteristics and survival were *** median follow-up of surviving patients was 73 mo(range:52-122 mo). RESULTS:IL-24 expression was found in 81 out of 90 patients;31 showed weak intensity and 50 showedstrong *** expression was found in 64 out of 90 *** and weak intensities of IL-24 expression were classified as negative expression for ***-24 expression was significantly reduced in poorly differentiated tumors in comparison with well or moderately differentiated tumors(P=0.004),N2b to earlier N stages(P=0.016),and stageⅢc to stageⅢ a orⅢb(P=0.028).The number of involved lymph nodes was also significantly reduced in IL-24-positive patients in comparison with IL-24-negative ones. There was no correlation between VEGF expression and patient *** of IL-24 and VEGF was not correlated with survival,but N stage and stages were significantly correlated with survival. CONCLUSION:IL-24 expression was significantly correlated with histological differentiation,and inversely correlated with the degree of lymph node involvement in stageⅢrectal cancer.

关键词：白细胞介素分化程度淋巴结直肠癌血管内皮生长因子 VEGF 免疫组化染色手术切除

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Automorphism groups of some algebras

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Science China Mathematics 2009年第2期52卷 323-328页

作者： PARK hong Goo LEE Jeongsig CHOI Seul Hee nam Ki-Bong Department of Mathematics Hanyang UniversitySeoul 133-791 Korea Department of General Studies and Education SamYuk University Cheongnyangi P.O.Box 118Seoul 130-650 Korea Department of Mathematics University of JeonjuChon-ju 560-759 Korea Department of Mathematics and Computer Sciences University of Wisconsin-WhitewaterWhitewater WI53190 USA

The automorphism groups of algebras are found in many papers. Using auto-invariance, we find the automorphism groups of the Laurent extension of the polynomial ring and the quantum n-plane (respectively, twisting polynomial ring) in this work. As an application of the results of this work, we can find the automorphism group of a twisting algebra. We define a generalized Weyl algebra and show that the generalized Weyl algebra is simple. We also find the automorphism group of a generalized Weyl algebra. We show that the generalized Weyl algebra Am,m+n is the universal enveloping algebra of the generalized Witt algebra W(m,m + n).

关键词： Laurent extension quantum n-plane (generalized) Weyl algebra automorphism auto-invariant

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Intermetallic Evolution of Al–Si-Coated Hot Stamping Steel During Modified Electrically Assisted Rapid Heating

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Acta Metallurgica Sinica(English Letters) 2018年第12期31卷 1327-1333页

作者： Kieu-Anh Dinh Sung-Tae hong Tien Viet Luu Moon-Jo Kim Heung nam Han School of Mechanical Engineering University of Ulsan Liquid Processing & Casting R&D Group Korea Institute of Industrial Technology Department of Materials Science and Engineering RIAMSeoul National University

Modified electrically assisted(EA) rapid heating of Al–Si-coated hot stamping steel is suggested, and the intermetallic evolution in the coating during heating is experimentally investigated. In the modified EA rapid heating, a continuous electric current for a suitable duration is applied to a specimen to heat it to a temperature slightly below the melting temperature of the coating. The temperature of the specimen is then kept constant for a specified dwell time. The result of the microstructural analysis shows that the modified EA rapid heating could effectively increase the thickness of the intermetallic layer between the coating and steel substrate much faster than conventional furnace heating and induction heating. The effectiveness of EA rapid heating may be due to the athermal effect of the electric current on the mobility of atoms, in addition to the well-known resistance heating effect. EA rapid heating also provides a technical advantage in that partial austenization can be easily achieved by properly placing the electrodes, as demonstrated in the present study.

关键词： Hot stamping Electrically assisted rapid heating Partial austenization Al–Si-coated hot stamping steel

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Acute Myocardial Infarction Due to Stent Thrombosis After Administration of Intravenous Epinephrine for Anaphylaxis

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Chinese Medical Journal 2015年第19期128卷 2692-2693页

作者： Jung Soo Park Jin hong Min Jun Ho Kang Yong nam In Department of Emergency Medicine Chungbuk National University HospitalCheongju-siChungbuk 361-763Republic of Korea

To the Editor：The guidelines of several collaborating organizations recommend epinephrine injection for prompt initial treatment of anaphylaxis.[1] The dose and route of administration are generally based on the severity of symptoms and the rapidity with which a response is ***,epinephrine is widely used to treat anaphylaxis,reports of severe complications such as acute coronary syndrome,arrhythmia,and intracranial bleeding are rare.

关键词： complications coronary syndrome

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Massive Hematochezia Following Blunt Trauma in a Patient with Crohn＇s Disease： Intraluminal Bleeding without Hemoperitoneum

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Chinese Medical Journal 2016年第2期129卷 246-247页

作者： Jung Soo Park Jin hong Min Jun Ho Kang Yong nam In Department of Emergency Medicine College of Medicine Chungbuk National University Hospital Chungbuk Korea

To the Editor： A 29-year-old woman arrived via ambulance to the emergency department with hematochezia 1 h after sustaining blunt abdominal trauma as a passenger in a traffic accident. The patient also had Crohn＇s d... 详细信息

关键词： woman arrived emergency department diverting ileostomy

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