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Journal of Magnesium and Alloys 2022年第6期10卷 1672-1679页

作者： Joo-Hee Kang Jiwon Park kyung song Chang-Seok Oh Oleg Shchyglo Ingo Steinbach Korea Institute of Materials Science Changwon 51508Republic of Korea Interdisciplinary Centre for Advanced Materials Simulation Ruhr-University Bochum44801 BochumGermany

In this study the partially divorced eutectic microstructure ofα-Mg andβ-Mg17Al12was investigated by electron backscatter diffraction,transmission electron microscopy,and phase-field modeling in hypoeutectic Mg-Al *** orientation relationships between the individual eutecticαgrains,eutecticβphase,and primaryαgrains were *** the amount of eutectic morphology is primarily determined by the Al content,the in-depth microstructure analyses and the phase-field simulation suggest non-interactive nucleation and growth of eutecticαphase in theβphase grown on the interdendritic primaryα***,phase-field simulations showed a preferred nucleation sequence where theβphase nucleates first and subsequently triggers the nucleation of eutecticαphase at the movingβphase solidification front,which supports the microstructural analysis results.

关键词： Mg-Al alloy Partially divorced eutectic Solidification Electron backscatter diffraction Phase-Field modeling

Effect of Hemodilution on Fluctuation of Cerebral Oxygen Saturation during Cardiopulmonary Bypass in Children with Cyanotic Congenital Heart Disease

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Congenital Heart Disease 2021年第2期16卷 123-136页

作者： Misook Seo in-kyung song Hye-Mee Kwon Byungdoo Andrew Lee Won-Jung Shin Department of Anesthesiology Damsoyu HospitalSeoulKorea Department Anesthesiology and Pain Medicine Laboratory for Cardiovascular DynamicsAsan Medical CenterUniversity of Ulsan College of MedicineSeoul05505Korea

Background:In patients with cyanotic congenital heart disease(CHD),cerebral oxygenation may be maintained by elevations in hematocrit(Hct).Hemodilution accompanying cardiopulmonary bypass(CPB),however,can disrupt cerebral oxygen balance,leading to fluctuations in cerebral oxygen saturation(ScO_(2)).The present study investigated the effects of Hct changes on the fluctuation of ScO_(2)during CPB in cyanotic CHD using performance measurement(PM).Methods:Children with CHD(51 acyanotic and 46 cyanotic)who had undergone cardiac surgery using CPB were *** performance error(MDPE),median absolute performance error(MDAPE),and wobble parameters of ScO_(2)were calculated before(reference value),during,and after *** of PM parameters with Hct and reductions in Hct(ΔHct)were also ***:Before CPB,patients with cyanotic CHD had lower MDPE and larger wobble than those with acyanotic CHD,although mean ScO_(2)did not differ significantly between the two *** CPB,ScO_(2)of acyanotic CHD increased asΔHct increased,but PM variables were not associated withΔ*** cyanotic CHD,MDPE(r=−0.324,p=0.032)and MDAPE(r=0.339,p=0.024)correlated significantly withΔHct during *** CPB,MDPE(r=0.574,p=0.025)and MDAPE(r=−0.543,p=0.036)were significantly correlated with Hct in children with cyanotic CHD who underwent palliative ***:Therefore,ScO_(2)fluctuation during CPB in children with cyanotic CHD may be affected by the decrease in Hct,suggesting that excessive hemodilution can negatively influence the maintenance of cerebral oxygenation in these patients.

关键词： Cardiopulmonary bypass cerebral oxygen saturation children congenital heart disease hemodilution

Dynamic Changes in Left and Right Cerebral Oxygen Saturation during Selective Cerebral Perfusion in Young Infants

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Congenital Heart Disease 2023年第6期18卷 639-647页

作者： Hwa-Young Jang Sang-Jun Beon Sung-Hoon Kim in-kyung song Won-Jung Shin Department of Anesthesiology and Pain Medicine Laboratory for Cardiovascular DynamicsAsan Medical CenterUniversity of Ulsan College of MedicineSeoul05505Korea Department of Physician Education and Training Asan Medical CenterSeoul05505Korea

Objectives:We investigated whether the selective cerebral perfusion(SCP)technique causes differences in changes in cerebral perfusion between both hemispheres in young infants,using cerebral oxygen saturation(ScO2)as an ***,we determined the association between the discrepancy in ScO2 and cerebral perfu-sion pressure during ***:The difference in ScO2 between the left and right cerebral hemispheres(ΔScO2 Rt-Lt)was calculated during clamping of the innominate artery(IA)and during ***:In 25 infants(aged 2 to 78 days),the left and right ScO2 were well maintained(median 63.2%and 60.9%during IA clamping,respectively;64.0%and 65.6%during SCP,respectively).During IA clamping,right and left ScO2 decreased(med-ian-1.4%and-1.0%,respectively).During SCP,rightΔScO2 was higher compared to leftΔScO2(median 1.5%vs.0.6%;p<0.001).Eight patients had a higher rightΔScO2 than leftΔScO2 throughout *** had lowerΔScO2 Rt-Lt during IA clamping(median-3.2%vs.0.0%;p<0.001)and higherΔScO2 Rt-Lt during SCP than others(median 5.0%vs.-0.8%;p<0.001).During and after SCP,the correlation coefﬁcient between rightΔScO2 and change in the mean arterial pressure was higher in patients with a discrepancy than in others(r=0.731 vs.r=0.519;p<0.001).Conclusions:This study suggests that SCP permits adequate bilateral cerebral ***,the unilateral cerebral perfusion technique may cause a difference in cerebral perfusion between both hemispheres in young infants;this may depend on the perfusion pressure.

关键词： Cerebral circulation congenital heart defects monitoring near-infrared spectroscopy

Nitrogen-and Oxygen-Containing Porous Ultrafine Carbon Nanofiber:A Highly Flexible Electrode Material for Supercapacitor

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Journal of Materials Science & Technology 2017年第5期33卷 424-431页

作者： Kai Wei Kyu-Oh Kim kyung-Hun song Chang-Yong Kang Jung soon Lee Mayakrishnan Gopiraman Ick-Soo Kim College of Textile and Clothing Engineering Soochow UniversitySuzhou215021China Nano Fusion Technology Research Group Division of Frontier FibersInstitute for Fiber Engineering(IFES)Interdisciplinary Cluster for Cutting Edge Research(ICCER)Shinshu UniversityTokida 3-15-1UedaNagano Prefecture386-8567Japan Department of Fiber System Engineering Dankook UniversityYoungin 448-701Republic of Korea Department of Clothing&Textiles PaiChai UniversityDaejeon 302-735Republic of Korea Department of Metallurgical Engineering Pukyong National UniversityBusan 608-739Republic of Korea Department of Clothing and Textiles Chungnam National UniversityDaejeon 305-764Republic of Korea

Herein, we report a simple and effective preparation of ultrafine CNFs （u-CNFs） with high surface area via electrospinning of two immiscible polymers [polyacrylonitrile （PAN） and poly（methyl methacry- late）（PMMA）] followed by calcination at high temperature in an inert atmosphere. Various electrospinning conditions were optimized in detail. Four different kinds of PAN/PMMA ratios （10/0, 7：3, 5：5 and 3：7） were chosen and found that the PAN/PMMA ratio of 3：7 （PAN/PMMA-3：7） is the optimum one. BET anal- ysis showed the specific surface area of the u-CNFs-3：7 was 46Z57 m2/g with an excellent pore volume （1.15 cms g-l） and an average pore size （9.48 nm）： it is about 25 times higher than the conventional CNFs （c-CNFs）. TEM and FE-SEM images confirmed the ultrafine structure of the CNFs with a thinner fiber di- ameter of-50 nm. The graphitic nature and atomic arrangement of the u-CNFs were investigated by Raman and XPS analyses. For the supercapacitor application, unlike the common electrode preparation methods, the u-CNFs-3：7 was used without any activation, chemical or mechanical modifications. The u-CNFs- 3：7 showed a better specific capacitance of 86 Fig in 1 mol/L 1-12S04 when compared to pure CNFs. The excellent physicochemical properties make the u-CNFs-3：7 an alternative choice to the existing CNFs for the supercapacitors.

关键词： Carbon fiber Porosity Electron microscopy Surface analysis Supercapacitor

Differential diagnosis of left-sided abdominal pain:Primary epiploic appendagitis vs colonic diverticulitis

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World Journal of Gastroenterology 2013年第40期19卷 6842-6848页

作者： Jeong Ah Hwang Sun Moon Kim Hyun Jung song Yu Mi Lee kyung Min Moon Chang Gi Moon Hoon Sup Koo kyung Ho song Yong Seok Kim Tae Hee Lee Kyu Chan Huh Young Woo Choi Young Woo Kang Woo Suk Chung Division of Gastroenterology and Hepatology Department of Internal MedicineKonyang University College of MedicineDaejeon 302-718South Korea Department of Diagnostic Radiology Konyang University College of MedicineDaejeon 302-718South Korea

AIM:To investigate the clinical characteristics of left primary epiploic appendagitis and to compare them with those of left colonic ***:We retrospectively reviewed the clinical records and radiologic images of the patients who presented with left-sided acute abdominal pain and had computer tomography(CT) performed at the time of presentation showing radiological signs of left primary epiploic appendagitis(PEA) or left acute colonic diverticulitis(ACD) between January 2001 and December 2011. A total of 53 consecutive patients were enrolled and evaluated. We also compared the clinical characteristics,laboratory findings,treatments,and clinical results of left PEA with those of left ***:Twenty-eight patients and twenty-five patients were diagnosed with symptomatic left PEA and ACD,respectively. The patients with left PEA had focal abdominal tenderness on the left lower quadrant(82.1%). On CT examination,most(89.3%) of the patients with left PEA were found to have an oval fatty mass with a hyperattenuated ring sign. In cases of left ACD,the patients presented with a more diffuse abdominal tenderness throughout the left side(52.0%vs 14.3%; P = 0.003). The patients with left ACD had fever and rebound tenderness more often than those with left PEA(40.0% vs 7.1%,P = 0.004; 52.0% vs14.3%,P = 0.003,respectively). Laboratory abnormalities such as leukocytosis were also more frequently observed in left ACD(52.0% vs 15.4%,P = 0.006).CONCLUSION:If patients have left-sided localized abdominal pain without associated symptoms or laboratory abnormalities,clinicians should suspect the diagnosis of PEA and consider a CT scan.

关键词： Acute abdomen Differential diagnosis Appendix epiploica Colonic diverticulitis Multidetector computed tomography

Effects of low molecular weight polysaccharide from Sargassum thunbergii against palmitic acid-induced intracellular lipid accumulation in 3T3-L1 adipocyte and HepG2 cells

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Food Science and Human Wellness 2024年第4期13卷 2244-2252页

作者： Hyo-Geun Lee D.P.Nagahawatta M.J.M.S.Kurera kyung-Mo song Yun-Sang Choi You-Jin Jeon Min-Cheol Kang Department of Marine Life Sciences Jeju National UniversityJeju 63243Republic of Korea Department of Biotechnology Faculty of Agriculture and Plantation ManagementWayamba University of Sri LankaMakanduraGonawila(NWP)60170Sri Lanka Research Group of Food Processing Korea Food Research Institute245Wanju 55365Republic of Korea

Low molecular weight polysaccharides can be isolated from Sargassum thunbergii(LMPST)and in vitro experiments were conducted to evaluate the inhibitory effects on *** natures of LMPST were attained from *** and appraised their LMPST on palmitic acid(PA)induced lipid accretion in Hep G2,and 3T3-L1 *** treatment lessened lipid deposition and intracellular free fatty acid and triglyceride intensities in PA-treated above mentioned *** mechanistic study publicized that LMPST2 significantly suppressed adipogenesis and stimulated the PA-treated 3T3-L1 cells occupied in the lipolysis ***,in PA-treated Hep G2 cells,the free fatty acid oxidation was significantly increased by *** these constructive properties of LMPST2 from ***,is a potential candidate for diminishing the intracellular lipids,and for a therapeutic agent in those conditions.

关键词： Sargassum thunbergii Low molecular weight polysaccharide Lipid accumulation Obesity Liver steatosis

Investigation on the Relationship in IVD angle, Ferguson＇s angle and Lumbar lordotic angle in LBP Patient with Acute Lateral Tortipelvis 4th lumbar

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世界中医骨科杂志 2007年第1期9卷 35-37页

作者： Hyung-Ho Lim Yun-kyung song Gun Jang Dept. of Oriental Rehabilitation Medicine College of Oriental Medicine Kyung-Won University

Investigation on the Relationship in Acute Lateral Tortipelvis and Breaks in Low Back Pain Patient

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世界中医骨科杂志 2007年第1期9卷 32-34页

作者： Hyung-Ho Lim Yun-kyung song Gun Jang Dept. of Oriental Rehabilitation Medicine College of Oriental Medicine Kyung-Won University

Protective effects of Singi-pill on Traumatic brain injury-induced apoptosis in Rat hippocampal dentate gyrus

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世界中医骨科杂志 2007年第1期9卷 38-40页

作者： Hyung-Ho Lim Yun-kyung song Oh-Bong Kwon Department of Oriental Rehabilitation Medicine College of Oriental Medicine Kyungwon University

Anti-obesity effects of fucoidan from Sargassum thunbergii in adipocytes and high fat diet induced obese mice through inhibiting adipogenic specific transcription factor

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Food Science and Human Wellness 2024年第3期13卷 1608-1616页

作者： Hyo-Geun Lee H.H.A.C.K.Jayawardhana Fengqi Yang D.P.Nagahawaththa N.M.Liyanage kyung-Mo song Yun-Sang Choi Seung-Hong Lee You-Jin Jeon Min-Cheol Kang Department of Marine Life Sciences Jeju National UniversityJeju 63243Republic of Korea Marine Science Institute Jeju National UniversityJeju 63333Republic of Korea Research Group of Food Processing Korea Food Research InstituteWanju 55365Republic of Korea Department of Pharmoceutical Engineering Soonchunhyang UniversityAsan 31538Republic of Korea

The prevalence of obesity has increased and is a health concern *** to the concerns regarding synthetic anti-obesity treatments,nowadays natural products become a *** studies proved that there is a potential to use marine algae as anti-obesity ***,in this study,the lipid inhibitory effect of crude polysaccharide of amyloglucosidase-assisted hydrolysate from Sargassum thunbergii(STAC)and its fucoidan fractions(STAFs)on 3T3-L1 cells and high-fat diet(HFD)-induced obese mice were *** to the results,the STAF3,showed the highest xylose content and exhibited significant inhibitory effects on lipid accumulation by downregulating adipogenic and lipogenic proteins in 3T3-L1 ***,oral supplementation with STAC significantly declined gain in body weight and fat weight,and serum lipid contents in an HFD-induced obesity mouse *** and chemical characterizations demonstrated that puritied STAF3 has consistent surface morphology and small particle size,with similar structural characteristics as commercial ***,these results indicate that STAC and purified STAF3 from Sargassum thunbergia is a potent source to develop as ananti-obesity agents or functional food products to counter obesity.

关键词： Sargassum thunbergii Fucoidan Anti-obesity Anti-steatosis