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World Journal of Gastroenterology 2009年第18期15卷 2258-2264页

作者： Dongho Choi Hyo Won Lee Kyung Yul Hur Jae Joon kim Gyeong-Sin Park Si-Hyong jang Young Soo Song ki-seok jang Seung Sam Paik Department of Surgery College of MedicineSoonchunhyang University140-743 SeoulSouth Korea Department of Surgery Chi Hang Hospital140-741 SeoulSouth Korea Department of Pathology College of MedicineCatholic University137-040 SeoulSouth Korea Department of Pathology College of MedicineHanyang University133-790 SeoulSouth Korea

AIM:To verify that CD markers are available for detecting cancer stem cell populations and to evaluate their clinical significance in colon ***:Immunohistochemistry for CD133,CD24 and CD44 was performed on the tissue microarray of 523 colorectal *** records were reviewed and clinicopathological analysis was ***:In colorectal adenocarcinoma,128 of 523 cases(24.5%) were positive and 395 cases(75.5%) were negative for CD133 *** hundred and sixty-four of 523 cases(50.5%) were positive and 259 cases(49.5%) were negative for CD24 *** hundred and two of 523 cases(96%) were negative and 21 cases(4%) were positive for CD44 *** clinicopathological analysis,CD133 expression was present more in male patients(P = 0.002) and in advanced T stage cancer(P = 0.024).Correlation between CD24 expression and clinicopathological factors was seen in the degree of differentiation(P = 0.006).Correlation between CD44 expression and clinicopathological factors was seen in the tumor size(P = 0.001).Survival was not significantly related to CD133,CD24 and CD44 ***:CD markers were related to invasiveness and differentiation of colorectal ***,CD expression was not closely related to survival.

关键词： CD133 大肠腺癌分化程度肿瘤大小干细胞标志物 CD44表达临床病理因素侵袭

Towards high-performance and robust anion exchange membranes(AEMs)for water electrolysis:Super-acid-catalyzed synthesis of AEMs

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Journal of Energy Chemistry 2024年第6期93卷 478-510,I0012页

作者： Geun Woong Ryoo Sun Hwa Park ki Chang Kwon Jong Hun Kang Ho Won jang Min Sang Kwon Department of Materials Science and Engineering Research Institute of Advanced Materials(RIAM)Seoul National UniversitySeoul 08826Republic of Korea Interdisciplinary Materials Measurement Institute Korea Research Institute of Standards and Science(KRISS)Daejeon 34113Republic of Korea Department of Chemical and Biological Engineering and Institute of Chemical ProcessSeoul National UniversitySeoul 08826Republic of Korea Department of Applied Measurement Science University of Science and TechnologyDaejeon 34113Republic of Korea

The increasing demand for hydrogen energy to address environmental issues and achieve carbon neutrality has elevated interest in green hydrogen production,which does not rely on fossil *** various hydrogen production technologies,anion exchange membrane water electrolyzer(AEMWE)has emerged as a next-generation technology known for its high hydrogen production efficiency and its ability to use non-metal ***,this technology faces significant challenges,particularly in terms of the membrane durability and low ionic *** address these challenges,research efforts have focused on developing membranes with a new backbone structure and anion exchange groups to enhance durability and ionic ***,the super-acid-catalyzed condensation(SACC)synthesis method stands out due to its user convenience,the ability to create high molecular weight(MW)polymers,and the use of oxygen-tolerant organic *** the synthesis of anion exchange membranes(AEMs)using the SACC method began in 2015,and despite growing interest in this synthesis approach,there remains a scarcity of review papers focusing on AEMs synthesized using the SACC *** review covers the basics of SACC synthesis,presents various polymers synthesized using this method,and summarizes the development of these polymers,particularly their building blocks including aryl,ketone,and anion exchange *** systematically describe the effects of changes in the molecular structure of each polymer component,conducted by various research groups,on the mechanical properties,conductivity,and operational stability of the *** review will provide insights into the development of AEMs with superior performance and operational stability suitable for water electrolysis applications.

关键词： Green hydrogen production Water electrolysis Anion exchange membrane water electrolyzer(AEMWE) Anion exchange membranes(AEMs) Super-acid-catalyzed condensation(SACC)

Trifunctional robust electrocatalysts based on 3D Fe/N-doped carbon nanocubes encapsulating Co4N nanoparticles for efficient battery-powered water electrolyzers

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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 encapsulated 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 encapsulation by Fe/***,the rechargeable zinc-air battery with Co_(4)N@Fe/N-C delivers a high specific capacity 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

Ionizing terahertz waves with 260 MV/cm from scalable optical rectification

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Light(Science & Applications) 2024年第6期13卷 1075-1087页

作者： Hyeongmun kim Chul Kang Dogeun jang Yulan Roh Sang Hwa Lee Joong Wook Lee Jae Hee Sung Seong Ku Lee ki-Yong kim Advanced Photonics Research Institute GISTGwangju61005Korea Department of Physics and Optoelectronics Convergence Research Center Chonnam National UniversityGwangju61186Korea Pohang Accelerator Laboratory POSTECHPohang37673Korea Center for Relativistic Laser Science Institute for Basic ScienceGwangju61005Korea Institute for Research in Electronics and Applied Physics Department of PhysicsUniversity of MarylandCollege ParkMaryland20742USA

Terahertz(THz)waves,known as non-ionizing radiation owing to their low photon energies,can actually ionize atoms and molecules when a sufficiently large number of THz photons are concentrated in time and ***,we demonstrate the generation of ionizing,multicycle,15-THz waves emitted from large-area lithium niobate crystals via phase-matched optical rectification of 150-terawatt laser pulses.A complete characterization of the generated THz waves in energy,pulse duration,and focal spot size shows that the field strength can reach up to 260 megavolts per *** particular,a single-shot THz interferometer is employed to measure the THz pulse duration and spectrum with complementary numerical *** intense THz pulses are irradiated onto various solid targets to demonstrate THz-induced tunneling ionization and plasma *** study also discusses the potential of nonperturbative THz-driven ionization in gases,which will open up new opportunities,including nonlinear and relativistic THz physics in plasma.

关键词： optical interferometer matched

固溶强化热处理对Al-Mg合金腐蚀性能的影响(英文)

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Transactions of Nonferrous Metals Society of China 2011年第6期21卷 1218-1224页

作者： Seong-Jong kiM seok-ki jang Min-Su HAN Seong-Kwon kiM Jong-Sin kiM Division of Marine System Engineering Mokpo Maritime University Mokpo City Jeonnam 530-729 Korea Media Engineering Seoul National University of Technology Seoul 139-743 Korea Korean Register of Shipping Tokyo Branch Office 3rd F Sanko BLDG＇ 4-11 Nohonbashi Kodenma-cho Cho-ku 103-0001 Tokyo Japan

Al合金表层的缺陷常常会导致腐蚀发生。因此,采取保护措施以提高铝合金的抗腐蚀性能是非常重要的。从电化学的角度出发,对固溶、淬火和时效处理工艺进行优化,以提高铝合金的强度。在不同电位(-05～-1.8V)下进行慢应变速率拉伸实验。结... 详细信息

Al合金表层的缺陷常常会导致腐蚀发生。因此,采取保护措施以提高铝合金的抗腐蚀性能是非常重要的。从电化学的角度出发,对固溶、淬火和时效处理工艺进行优化,以提高铝合金的强度。在不同电位(-05～-1.8V)下进行慢应变速率拉伸实验。结果表明:与未经强化处理的铝合金相比,经固溶强化热处理的铝合金表现出高的最大拉伸强度、伸长率和断裂时间。由于经固溶强化处理的铝合金的伸长率增加,其拉伸断裂时间也随之增加。在电位-1.3～-0.7V范围内,样品具有优异的力学性能,因此,该电位范围被认为是该合金的腐蚀保护范围。

关键词：铝合金慢应变速率拉伸实验电化学固溶强化热处理力学性能

Clean-DM1, a Korean Polyherbal Formula, Improves High Fat Diet-Induced Diabetic Symptoms in Mice by Regulating IRS/PI3K/AKT and AMPK Expressionsin Pancreas and Liver Tissues

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Chinese Journal of Integrative Medicine 2024年第2期30卷 125-134页

作者： Piao Wang Yi Liu seok Yong Kang Chenzi Lyu Xiang Han Tianjun Ho Kyung Jae Lee Xianglong Meng Yong-ki Park Hyo Won Jung Department of Herbology College of Korean MedicineDongguk UniversityGyeongju 38066Korea College of Pharmacy&Graduate School of Pharmaceutical Sciences Ewha Womans UniversitySeoul 03760Korea Korean Medicine R&D Center Dongguk UniversityGyeongju 38066Korea Shanxi Key Laboratory of Traditional Herbal Medicines Processing Shanxi University of Chinese MedicineJinzhong(030619)ShanxiProvinceChina

Objective:To investigate the effects of Clean-DM1(C-DM1),a polyherbal formulation of Radix Scrophulariae,Radix Astragali,Rhizoma Atractylodis,and Radix Salviae Miltiorrhizae,on high-fat diet(HFD)-induced diabetes ***:The information about active components of C-DM1 extract and molecular mechanism was obtained from network pharmacology *** compounds of C-DM1 extract by high performance liquid chromatography-mass spectrometry(HPLC-MS)analysis were conducted for quality *** in vivo study,mice were induced diabetes by HFD for 12 *** mice in the normal group(Nor)were maintained with a regular diet and treated with saline by *** HFD model mice were randomly divided into 3 groups,including a HFD diabetic model group,a C-DM1 extract-administered group(C-DM1,500 mg/kg),and metformin-administered groups(Met,500 mg/kg),8 mice in each *** intake,body weight(BW),and fasting blood glucose(FBG)levels were recorded weekly for 4 *** 4 weeks of treatment,alanine aminotransferase(ALT),aspartate aminotransferase(AST),blood glucose,low-density lipoprotein cholesterol(LDL-C)were determined using an automated clinical chemistry analyzer,and homeostatic model for assessing insulin resistance(HOMA-IR)levels and oral glucose tolerance test(OGTT)were *** histopathological changes of liver and pancreatic tissues were observed by hematoxylin-eosin *** receptor substrate(IRS)/phosphatidylinositol 3 kinase(PI3K)/protein kinase B(AKT)and adenosine 5'-monophosphate-activated protein kinase(AMPK)expressions in liver and pancreas tissues were detected by Western blot ***:HPLC-MS identified dihydroisotanshinone,dihydroisotanshinone I,cryptotanshinone,harpagoside,and atractyloside A in C-DM1 *** administration of C-DM1 extract significantly decreased body weight,calorie intake,and the levels of blood glucose and insulin in the diabetic mice(P<0.05 or P<0.01).The C-DM1 extract administration improved the im

关键词： high-fat diet type 2 diabetes mellitus herbal formulation insulin receptor substrate/phosphatidylinositol 3 kinase/protein kinase B adenosine 5'-monophosphate-activated protein kinase network pharmacology high performance liquid chromatography-mass spectrometry analysis

采用密封材料的热喷涂层的空蚀和电化学特征(英文)

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Transactions of Nonferrous Metals Society of China 2013年第4期23卷 1002-1010页

作者： Seong-Jong kiM Seung-Jun LEE In-Ju kiM Seong-Kweon kiM Min-Su HAN seok-ki jang Division of Marine Engineering Mokpo Maritime UniversityHaeyangdaehak-ro 91 Mokpo-Si530-729Korea Korea Institute of Industrial Technology 89 Yangdaegiro-gilIpjang-myeonSeobuk-guCheonan-Si331-822Korea Department of Electronic IT Media Engineering Seoul National University of Science & Technology138 Gongneung-gilNowon-gu Seoul139-743Korea

抗腐蚀热喷涂技术广泛地运用于防止钢在海洋环境中由于腐蚀和气蚀受到损害。为了改善用于船舶材料的低温热喷涂85%Al-14.5%Zn-0.5%Zr涂层合金的耐久性,对其采用了多种密封材料,并考察其电化学行为和空蚀特征。结果表明:密封材料能改善... 详细信息

抗腐蚀热喷涂技术广泛地运用于防止钢在海洋环境中由于腐蚀和气蚀受到损害。为了改善用于船舶材料的低温热喷涂85%Al-14.5%Zn-0.5%Zr涂层合金的耐久性,对其采用了多种密封材料,并考察其电化学行为和空蚀特征。结果表明:密封材料能改善涂层材料的性能。其中,混合陶瓷和氟-硅密封材料有着良好的电化学性能,并且氟-硅密封材料具有最佳的抗空蚀性能。

关键词：热喷涂层密封材料空蚀电化学性能

船用5052-O铝合金在海水中的力学和电化学性能(英文)

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Transactions of Nonferrous Metals Society of China 2013年第3期23卷 636-641页

作者： Seong-Jong kiM seok-ki jang Min-Su HAN Jae-Cheul PARK Jae-Yong JEONG Sang-Ok CHONG Division of Marine Engineering Mokpo Maritime Univers ityHaeyangdaehak-ro 91 Mokpo-Si530-729Korea

采用电化学实验和SEM表面形貌观察,对船用5052-O铝合金在海水中的腐蚀保护电位进行优化,以克服诸如点蚀、腐蚀、应力腐蚀开裂和氢脆等行为的发生。在外加电流阴极保护的条件下,最优的保护电位范围为-1.3V～-0.7V。在此电位下,试样的腐... 详细信息

采用电化学实验和SEM表面形貌观察,对船用5052-O铝合金在海水中的腐蚀保护电位进行优化,以克服诸如点蚀、腐蚀、应力腐蚀开裂和氢脆等行为的发生。在外加电流阴极保护的条件下,最优的保护电位范围为-1.3V～-0.7V。在此电位下,试样的腐蚀电流密度较低,经恒电位实验后,试样表面形貌保持得较好。

关键词：铝合金腐蚀海水腐蚀电化学性能应力腐蚀开裂氢脆阴极保护

Unusual prerectal location of a tailgut cyst: A case report

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World Journal of Gastroenterology 2006年第31期12卷 5081-5083页

作者： Si-Hyong jang ki-seok jang Young-Soo Song Kyueng-Whan Min Hong-Xiu Han Kyeong-Geun Lee Seung-Sam Paik Departments of Pathology and SurgeryCollege of Medicine Hanyang UniversitySeoulKorea

尾肠包囊是从胚胎的柱子的残余产生的稀罕先天的膀胱的损害肛门勇气。它专门在制动火箭以内发生直肠的空间并且很少在仙子肾的区域或在皮下组织。直肠前和制动火箭肛后肠包囊的膀胱的地点是极其稀罕的。就我们的知识而言，仅仅三个案例... 详细信息

尾肠包囊是从胚胎的柱子的残余产生的稀罕先天的膀胱的损害肛门勇气。它专门在制动火箭以内发生直肠的空间并且很少在仙子肾的区域或在皮下组织。直肠前和制动火箭肛后肠包囊的膀胱的地点是极其稀罕的。就我们的知识而言，仅仅三个案例在英语文学被报导了。我们经历了在直肠前和制动火箭开发的肛后肠包囊的一个不平常的案例在一个 14 岁的男孩的膀胱的空间。腹的计算断层摄影术表明了在在前面偏一边的部分被定位到直肠的直肠前包囊。包囊包含了微黄色的使浓厚的类粘蛋白材料。用显微镜，包囊被有鳞、圆柱、立方形、过渡的上皮衬里，墙是有驱散的平滑肌房间的纤维变性。尽管肛后肠包囊在直肠前区域产生是极其稀罕的，它的可能性应该在直肠前和制动火箭的鉴别诊断被认为膀胱的膀胱的质量。

关键词：直肠疾病实验研究病理临床

异种铝合金摩擦焊接移动速度和旋转速度的优化(英文)

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Transactions of Nonferrous Metals Society of China 2011年第7期21卷 1486-1490页

作者： Jae-Cheul PARK Min-Su HAN seok-ki jang Seong-Jong kiM Division of Marine System Engineering Mokpo Maritime UniversityMokpo CityJeonnam530-729Korea

在摩擦焊接过程中的热效应导致的高模量使铝合金容易变形、强度降低。对船用异种铝合金进行了搅拌摩擦焊接。确定5052-0和6061-T6铝合金在焊接时移动速度和旋转速度的最优条件。得到铝合金最佳焊接条件为移动速度61mm/min和旋转速度1600... 详细信息

在摩擦焊接过程中的热效应导致的高模量使铝合金容易变形、强度降低。对船用异种铝合金进行了搅拌摩擦焊接。确定5052-0和6061-T6铝合金在焊接时移动速度和旋转速度的最优条件。得到铝合金最佳焊接条件为移动速度61mm/min和旋转速度1600r/min。

关键词：铝合金摩擦焊移动速度旋转速度力学性能