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Effect of fluidity on the manufacturing of open cell magnesium alloy foams

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Journal of Magnesium and Alloys 2016年第1期4卷 1-7页

作者： Xue-Zheng Yue Koichi Kitazono Xue-Jie Yue bo-young Hur Graduate School of System Design Tokyo Metropolitan UniversityTokyo 191-0065Japan Department of Architectural Engineering Xinxiang UniversityXinxiang 453000China Gyeongsang National University 501Jinju-daeroJinjuGyeongnamRepublic of Korea

The effect of fluidity on open cell AZ31 metal foam samples fabricated using a solid state space holder method was *** was fabricated by plaster powder and perlite *** were sieved which compacted layer by layer in casting *** which made by granules were then heated to 200℃,300℃,400℃,500℃ under a rough(mechanical)vacuum before pressure infiltration with AZ31 Mg *** were infiltrated using vacuum pressure values range of 8-14 *** conditions of pressure and temperature were performed in order to get different fluidity on manufacturer of open cell AZ31 metal foam specimen *** is found that the fluidity plays significant role to determine the open cell AZ31 alloy *** fluidity is affected by preheat temperature and infiltration vacuum *** macrostructure,the distribution of the pores,microstructure,infiltration length,and porosity were investigated.

关键词： Magnesium alloy Fluidity Open cell Vacuum

Regarding successful use of 23G cutter for anterior vitrectomy and scleral-fixated intraocular lens implantation

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International Journal of Ophthalmology(English edition) 2017年第12期10卷 1947-1948页

作者： koushik tripathy yuan bo liang yoly fong alvin young ICARE Eye Hospital&Postgraduate Institute Uttar Pradesh 201301India Clinical and Epidemiological Eye Research Center the Affiliated Eye HospitalSchool of Optometry and OphthalmologyWenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Department of Ophthalmology&Visual Sciences.the Chinese University of Hong Kong Prince of Wales HospitalShatinHong KongChina

Citation： Tripathy K. Regarding successful use of 23G cutter for anterior vitrectomy and scleral-fixated intraocular lens implantation. IntJ Ophthalmol 2017;10（12）：1947-1948

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Estimation of Non-CO_2 GHGs Emissions by Analyzing Burn Severity in the Samcheok Fire,South Korea

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Journal of Mountain Science 2012年第6期9卷 731-741页

作者： WON Myoung Soo KOO Kyo Sang LEE Myung bo LEE Woo Kyun KANG Kyu-young Division of Forest Disaster Management Korea Forest Research Institute130712 SeoulRepublic of Korea Faculty of Environmental Science and Ecological Engineering Korea University-Seoul136701 SeoulRepublic of Korea Department of Biological and Environmental Science Dongguk University-Seoul100715 SeoulRepublic of Korea

This study was performed to estimate the emission of non-CO 2 greenhouse gases(GHGs) from biomass burning at a large fire *** extended methodology adopted the IPCC Guidelines(2003) equation for use on data from the Samcheok forest fire gathered using 30 m resolution Landsat TM satellite imagery,digital forest type maps,and growing stock information per hectare by forest type in *** burn ratio(NBR) technique was employed to analyze the area and severity of the Samcheok forest fire that occurred in *** differences between NBR from pre-and post-fire datasets are examined to determine the extent and degree of change detected from *** results of burn severity analysis by dNBR of the Samcheok forest fire area revealed that a total of 16,200 ha of forest were *** proportion of the area characterized by a 'Low' burn severity(dNBR below 152) was 35%,with 'Moderate'(dNBR 153-190) and 'High'(dNBR 191-255) areas were at 33% and 32%,*** combustion efficiency for burn severity was calculated as 0.43 for crown fire where burn severity was 'High',as 0.40 for 'Moderate' severity,and 0.15 for 'Low' severity surface *** emission factors for estimating non-CO 2 GHGs were separately applied to CO 130,CH 4 9,NO x 0.7 and N 2 O ***-CO 2 GHGs emissions from biomass burning in the Samcheok forest fire area were estimated to be CO 44.100,CH 4 3.053,NO x 0.238 and N 2 O 0.038 Gg.

关键词： Biomass burning Non-CO 2 GHGs Normalized burn ratio Combustion efficiency Emission factor Landsat TM

Sequential transcatheter arterial chemoembolization and portal vein embolization before right hemihepatectomy in patients with hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2020年第3期19卷 244-251页

作者： Gil Chun Park Sung Gyu Lee young In Yoon Kyu bo Sung Gi young Ko Dong Il Gwon Dong Hwan Jung Yong Kyu Jung Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

Background:Recent studies showed that sequential selective transcatheter arterial chemoembolization(TACE)and portal vein embolization(PVE)provided better future liver remnant(FLR)regeneration rate and disease-free survival following surgery compared with PVE *** present study aimed to clarify whether preoperative sequential TACE and PVE before right hemihepatectomy can reduce postoperative hepatocellular carcinoma(HCC)recurrence and improve long-term disease-free and overall ***:Recurrence and survival outcomes were retrospectively evaluated in 205 patients with HCC who underwent right hemihepatectomy by a single surgeon from November 1993 to November *** were divided into four groups according to the procedure performed before the surgery:sequential TACE and PVE(TACE-PVE),PVE-only,TACE-only,or na?ve control *** baseline patient and tumor characteristics,postoperative outcomes,recurrence-free survival and overall survival were ***:Baseline patient and tumor characteristics upon diagnosis were similar in all four groups,while sequential TACE and PVE were well *** TACE-PVE group had a higher mean increase in percentage FLR volume compared with that of the PVE-only group(17.46%±6.63%vs.12.14%±5.93%;P=0.001).The TACE-PVE group had significantly better overall and disease-free survival rates compared with the other groups(both P<0.001).Conclusions:Sequential TACE and PVE prior to surgery can be an effective therapeutic strategy for patients with HCC scheduled for major hepatic *** active application of preoperative sequential TACE and PVE for HCC would allow more patients with marginal FLR volume to become candidates for major hepatic resection by promoting compensatory FLR hypertrophy without the deterioration of basal hepatic functional reserve or tumor progression.

关键词： Sequential selective transcatheter Arterial chemoembolization Portal vein embolization Hepatocellular carcinoma Future liver remnant

Effects of the fourth component and undercooling on morphology of primary Mg-Zn-Y icosahedral quasicrystal phase under normal casting conditions

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China Foundry 2009年第4期6卷 293-299页

作者： Wang Zhifeng Zhao Weimin bo-young Hur Huang Chunying Yu Chengquan School of Materials Science and Engineering Hebei University of Technology Tianjin 300130 China School of Nano and Advanced Materials Engineering Gyeongsang National University Jinju 660-701 Korea

The paper presents some results of the investigation on effects of the fourth component(Ti,C,Sb or Cu)and undercooling on the morphology,size and forming process of primary Mg-Zn-Y icosahedral quasicrystal phase(I-phase)under normal casting *** result shows that the addition of certain amount of fourth component can transform I-phase morphology from petal-like to ***,I-phase will grow up to petal-like if superfluous addition of the fourth component *** is also found that the solidified morphology of I-phase depends on the stability of spherical I-phase during the subsequent growth,and critical radius of maintaining the spherical I-phase interface relatively ***,mini-sized spherical I-phase can be produced with high content of the fourth component by *** findings are beneficial for industrializing Mgbased quasicrystals.

关键词： magnesium alloy quasicrystal fourth component morphology degree of undercooling

LiNbo_3 Self-Aligned Ridge Waveguide with Dielectric Side Buffers

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光学学报 2003年第S1期23卷 211-212页

作者： young-bo Cho Hyung-Gi Jung Sang-Yung Shin Dept. EECS Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Dae jeon. Republic of KoreaDept. EECS Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Dae jeon. Republic of KoreaDept. EECS Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Dae jeon. Republic of Korea

A simple fabrication method of self-aligned ridge waveguides with dielectric side buffers is demonstrated on +Z-cut LiNbo3. The ridge waveguide is fabricated by a combination of the annealed proton exchange process an... 详细信息

关键词： with of it In is LiNbo3 Self-Aligned Ridge Waveguide with Dielectric Side Buffers have Cr for been APE length

Treatment of hepatocellular carcinoma with portal venous tumor thrombosis: A comprehensive review

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World Journal of Gastroenterology 2016年第1期22卷 407-416页

作者： Kichang Han Jin Hyoung Kim Gi-young Ko Dong Il Gwon Kyu-bo Sung Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of Medicine

The natural history of hepatocellular carcinoma(HCC)with portal vein tumor thrombosis(PVTT)is dismal(approximately 2-4 mo),and PVTT is reportedly found in 10%-40%of HCC patients at *** to the Barcelona Clinic Liver Cancer(BCLC)Staging System(which is the most widely adopted HCC management guideline),sorafenib is the standard of care for advanced HCC(i.e.,BCLC stage C)and the presence of PVTT is included in this ***,sorafenib treatment only marginally prolongs patient survival and,notably,its therapeutic efficacy is reduced in patients with *** this context,there have been diverse efforts to develop alternatives to current standard systemic chemotherapies or combination treatment *** date,many studies on transarterial chemoembolization,3-dimensional conformal radiotherapy,hepatic arterial chemotherapy,and transarterial radioembolization report better overall survival than sorafenib therapy alone,but their outcomes need to be verified in future prospective,randomized controlled studies in order to be incorporated into current treatment ***,combination strategies have been applied to treat HCC patients with PVTT,with the hope that the possible synergistic actions among different treatment modalities would provide promising *** narrative review describes the current status of the management options for HCC with PVTT,with a focus on overall survival.

关键词： Hepatocellular carcinoma Portal vein tumorthrombosis Sorafenib Transarterial chemoembolization Transarterial radioembolization Hepatic arterial chemotherapy Radiotherapy

Retinoic acid enhances lactoferrin-induced IgA responses by increasing betaglycan expression

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Cellular & Molecular Immunology 2016年第6期13卷 862-870页

作者： Jeong-Min Lee young-Saeng Jang bo-Ra Jin Sun-Jin Kim Hyeon-Jin Kim bo-Eun Kwon Hyun-Jeong Ko Sung-il Yoon Geun-Shik Lee Woan-Sub Kim Goo-young Seo Pyeung-Hyeun Kim Department of Molecular Bioscience School of Biomedical Science Kangwon National University Chuncheon Republic of Korea Laboratory of Microbiology and Immunology College of Pharmacy Kangwon National University Chuncheon Republic of Korea Department of Systems Immunology College of Biomedical Science Kangwon National University Chuncheon 200-701 Republic of Korea College of Veterinary Medicine Kangwon National University Chuncheon Gangwon 200-701 Republic of Korea Department of Animal Life and Environmental Science College of Agriculture and Life Science Hankyong National University Anseong-si 456-749 Republic of Korea

Lactoferrin （LF） and retinoic acid （RA） are enriched in colostrum, milk, and mucosal tissues. We recently showed that LF-induced IgA class switching through binding to betaglycan （transforming growth factor-beta receptor III, TpRIII） and activation of canonical TGF-p signaling. We investigated the combined effect of LF and RA on the overall IgA response. An increase in IgA production by LF was further augmented by RA. This combination effect was also evident in Ig germ-line α （GLa） transcription and GLa promoter activity, indicating that LF in cooperation with RA increased IgA isotype switching. We subsequently found that RA enhanced TβRIII expression and that this increase contributed to LF-stimulated IgA production. In addition to the IgA response, LF and RA in combination also enhanced the expression of the gut-homing molecules C-C chemokine receptor 9 （CCR9） and a4β7 on B cells. Finally, peroral administration of LF and RA enhanced the frequency of CCR9＋ IgA＋ plasma cells in the lamina propria. Taken together, these results suggest that LF in cooperation with RA can contribute to the establishment of gut IgA responses.

关键词： gut homing molecule IgA lactoferrin retinoic acid TGF-β receptor

Glucocorticoid pulse therapy in an elderly patient with post-COVID-19 organizing pneumonia:A case report

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World Journal of Clinical Cases 2023年第17期11卷 4152-4158页

作者： Shinhee Park youngeun Jang So-My Koo bo Da Nam Hee-young Yoon Division of Allergy and Pulmonary Medicine Department of Internal MedicineSoonchunhyang University Bucheon HospitalBucheon 14584South Korea Division of Allergy and Respiratory Diseases Department of Internal MedicineSoonchunhyang University Seoul HospitalSeoul 04401South Korea Department of Radiology Soonchunhyang University Seoul HospitalSeoul 04401South Korea

BACKGROUND Pulmonary fibrosis often occurs as a sequel of coronavirus disease 2019(COVID-19);however,in some cases,it can rapidly progress,similar to the acute exacerbation of interstitial lung *** are the standard treatment for severe COVID-19 pneumonia requiring oxygen supply;however,the post-COVID-19 efficacy of high-dose steroid therapy remains ***,we presented a case of an 81-year-old man who developed acute respiratory failure after COVID-19 and was treated with glucocorticoid pulse *** SUMMARY An 81-year-old man with no respiratory symptoms was admitted due to a diabetic *** had been previously treated for COVID-19 pneumonia six weeks ***,upon admission,he suddenly complained of dyspnea and required a high-flow oxygen *** simple chest radiography and computed tomography(CT)revealed diffuse ground-glass opacities and consolidation in both ***,repeated sputum tests did not identify any infectious pathogens,and initial broad-spectrum antibiotic therapy did not result in any clinical improvement with the patient having an increasing oxygen *** patient was diagnosed with post-COVID-19 organizing ***,we initiated glucocorticoid pulse therapy of 500 mg for three days followed by a tapered dose on hospital day(HD)*** three days of pulse treatment,the patient's oxygen demand *** patient was subsequently discharged on HD 41,and chest radiography and CT scans have almost normalized nine months after *** Glucocorticoid pulse therapy may be considered when the usual glucocorticoid dose is ineffective for patients with COVID-19 sequelae.

关键词： Coronavirus Glucocorticoid Lung disease Interstitial Organizing pneumonia Case report