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Chinese Physics Letters 2001年第8期18卷 1033-1036页

作者： FANG De-Qing SHEN Wen-Qing FENG Jun CAI Xiang-Zhou MA Yu-Gang ZHANG Hu-Yong ZHONG Chen ZHAN Wen-Long GUO Zhong-Yan XIAO Guo-Qing WANG Jian-Song WANG Jin-Chuan LI Jia-Xing WANG Meng WANG Jian-Feng ning zhen-jiang WANG Quan-Jin CHEN Zhi-Qiang Shanghai Institute of Nuclear Research Chinese Academy of SciencesShanghai 201800 Institute of Modern Physics Chinese Academy of SciencesLanzhuo 730000 Department of Physics Ningbo UniversityNingbo 315211

Measurements of total reaction cross sections(σR)for some proton-rich nuclei(N=11-15 isotones)on carbon target at intermediate energies have been performed on the Radioactive Ion Beam Line of the Heavy Ion Research Facility in Lanzhou.A large enhancement ofσR for ^(27)P has been observed than for its *** for a proton halo in ^(27)P has been revealed in the Glauber analysis of the total reaction cross sections in terms of the difference factor d.

关键词： Proton neighbor Observation

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小型均质土坝的安全鉴定方法与综合评价

杨凌职业技术学院学报 2010年第1期9卷 20-23页

作者：宁振江刘海军黄陵县水土保持工作站陕西黄陵727300 西北农林科技大学水利与建筑工程学院陕西杨凌712100

通过对某水库运行以来存在的各种问题,结合土工试验和调查资料,从防洪标准复核、渗流安全分析、结构安全复核、现场调查等方面对该水库的安全状况进行了分析评价,本文可为同类工程提供参考。

关键词：水利工程安全论证均质土坝资料分析评价

Constructing 2D bismuth-based heterostructure for highly efficient photocatalytic CO2 reduction

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Tungsten 2025年第1期7卷 71-79页

作者： Ruo-Hang Xu Hao-Yu jiang Dan-Dan Cui Kun-Rong Du Hong-Run Zhang Sheng-Jie Xu Ya-Qi Li Zhi-zhen Ren Liang Wang Wei-Chang Hao Yi Du School of Physics and BUAA-UOW Joint Research Centre Beihang University Shenzhen Institute of Beihang University Centre for Catalysis and Clean Energy School of Environment and Science Griffith University

Reforming carbon dioxide（CO2） into fuels and valuable chemicals using solar energy holds significant potential for emission reduction and addressing energy supply *** recombination of photocarriers remains a major obstacle,however,to enhancing solar energy conversion efficiency in the photocatalytic reaction *** two-dimensional materials,constructing heterogeneous structures has emerged as an effective strategy to enhance the separation of photoexcited carriers by leveraging the internal electric field at the heterogeneous ***,we present a facile strategy for preparing Bi4NbO8Br/Bi2WO6plate-on-plate Z-scheme junctions with a strong internal electric field by in situ *** unique heterostructure facilitates efficient separation and transport of photoexcited charges by harnessing the internal electric field induced by chemical bonding at the lateral ***,the Bi4NbO8Br/Bi2WO6heterostructure exhibits enhanced CO2photoreduction properties,along with a CO yield rate of approximately 35 μmol·g-1·h-1under full light *** work offers novel insights into the synthesis of unique hetero structures intended to enhance the efficiency of photocatalytic CO2reduction.

关键词： Bi4NbO8Br/Bi2WO6 CO2 reduction Heterostructures Photocatalysts

老子“无为”的内敛取向与西周之“德”的向心追求

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怀化师专学报 2001年第1期20卷 34-37页

作者：宁镇疆毛克平华东师范大学历史系上海200062 怀化医专湖南怀化418000

通过论证老子“无为”思想与西周之“德”在内向追求上的一致性 ,以及老子“无为”思想对西周之“德”的继承 ,深刻揭示了老子“无为”

关键词：老子 “无为”思想西周 “德” 内向追求一致性内敛取向个人修养

单宁酸改性互穿网络水凝胶促进断裂跟腱术后的组织重塑

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中国组织工程研究 2025年第4期29卷 721-729页

作者：张博张振江东北京大学第三医院运动医学科北京市100191

背景:跟腱断裂术后的再生与重塑是临床治疗的难点,组织工程水凝胶材料为促进跟腱修复提供了可能。目的:探究单宁酸改性互穿网络水凝胶对大鼠断裂跟腱组织再生与重塑的作用。方法:①通过蓝光照射及CaSO4溶液浸泡交联制备单宁酸改性互穿... 详细信息

背景:跟腱断裂术后的再生与重塑是临床治疗的难点,组织工程水凝胶材料为促进跟腱修复提供了可能。目的:探究单宁酸改性互穿网络水凝胶对大鼠断裂跟腱组织再生与重塑的作用。方法:①通过蓝光照射及CaSO4溶液浸泡交联制备单宁酸改性互穿网络水凝胶,表征水凝胶的微观形貌、力学性能、黏附性能、体外释药性能与生物相容性。②取30只SD大鼠,采用随机数字表法分为假手术组、手术组与水凝胶组,每组10只,后2组建立右后肢跟腱断裂模型,手术组采用改良Kessler法将断裂跟腱重新缝合,水凝胶组采用相同术式缝合断裂跟腱后将单宁酸改性互穿网络水凝胶贴片完全缠绕包裹于断端接合处。术后4周,对断裂跟腱进行影像学检查、组织学评价、生物力学测试及炎症因子水平检测。结果与结论:①扫描电镜下可见单宁酸改性互穿网络水凝胶呈多孔微观结构,孔径为3-10μm,并且水凝胶具备良好的体外释药性能、黏附强度与拉伸强度;CCK-8检测与活/死染色显示,该水凝胶对大鼠骨髓间充质干细胞增殖活性无明显影响,具备良好的生物相容性。②MRI成像显示,与手术组比较,水凝胶组大鼠跟腱呈均一低信号,跟腱前后径厚度减小,与周围组织分界更为明确,表现更接近假手术组。苏木精-伊红与Masson染色显示,手术组大鼠跟腱纤维排列松散混乱,细胞密度增加且排布杂乱,伴有明显炎性细胞浸润,部分区域出现腱内骨化;水凝胶组大鼠跟腱纤维排列有序,细胞密度降低且排布规整,炎性细胞浸润明显减少。手术组大鼠跟腱的拉伸强度低于假手术组(P<0.05),水凝胶组大鼠跟腱的拉伸强度高于手术组(P<0.05)。与假手术组比较,手术组大鼠跟腱中白细胞介素1β、白细胞介素6及肿瘤坏死因子α质量浓度及mRNA表达升高(P<0.05);与手术组比较,水凝胶组3种炎症因子水平及mRNA表达降低。③结果表明,单宁酸改性互穿网络水凝胶可显著抑制局部炎症反应、促进断裂跟腱组织重塑。

关键词：单宁酸水凝胶互穿网络跟腱断裂组织重塑组织再生

万家寨引黄北干支线工程水土流失预测与防治措施分析

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水利技术监督 2025年第1期 122-125,194页

作者：姜震山西水务工程项目管理有限公司山西太原030000

长距离引水工程在建设过程点多线长面广,施工对土体扰动较大,易引发水土流失。为降低引水工程建设水土流失,以万家寨引黄北干支线工程为研究对象,结合区域水文地质条件,明确了水土流失防治目标值,量化分析项目建设区域内水土流失特点,... 详细信息

长距离引水工程在建设过程点多线长面广,施工对土体扰动较大,易引发水土流失。为降低引水工程建设水土流失,以万家寨引黄北干支线工程为研究对象,结合区域水文地质条件,明确了水土流失防治目标值,量化分析项目建设区域内水土流失特点,提出多种水土保持措施,将项目区的土壤流失量有效控制在容许范围内,水土保持措施效果较好,有效减少了水土流失。

关键词：引水工程水土保持监测水土保持措施

Selective G6PDH inactivation for Helicobacter pylori eradication with transformed polysulfide

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Science China Life Sciences 2025年

作者： Xiaonan Wang ning Zhou Xuejiao J.Gao Zijing Zhu Minmin Sun Qian Wang Haolin Cao Xuetong Wu Caiyu Zhou Qingkang zheng Ye Yuan Yuan Liu Lei Chen Jing jiang Pengcheng Bu Lizeng Gao CAS Engineering Laboratory for Nanozyme Key Laboratory of Biomacromolecules Institute of Biophysics Chinese Academy of Sciences School of Life Sciences University of Chinese Academy of Sciences College of Chemistry and Chemical Engineering Jiangxi Normal University Key Laboratory of Epigenetic Regulation and Intervention Institute of Biophysics Chinese Academy of Sciences Nanozyme Laboratory in Zhongyuan School of Basic Medical Sciences Zhengzhou University Nanozyme Laboratory in Zhongyuan Henan Academy of Innovations in Medical Science

Alternative treatment for the highly prevalent Helicobacter pylori infection is imperative due to rising antibiotic resistance. We unexpectedly discovered that the anti-H. pylori component in garlic is hydrogen polysulfide（H2S_n, n≥2）, not organic polysulfides. Studies on the mechanism of action（MoA） show that H2S_nspecifically inactivates H. pylori glucose-6-phosphate dehydrogenase（G6PDH） by interfering with electron transfer from glucose-6-phosphate（G6P） to nicotinamide adenine dinucleotide phosphate（NADP+）. However, low H2S_nyield makes garlic derivatives hard to be a reliable donor of H2S_nto treat H. pylori infection. To address this challenge, we established a polysulfide transformation process from garlic organosulfur compounds into Fe3S4that generates H2S_nwith a 25–58 times increase in *** chitosan encapsulation, we designed a gastric-adaptive H2S_nmicroreactor（GAPSR） that eradicates H. pylori with 250 times higher efficiency under gastric conditions. A single GAPSR achieves more rapid H. pylori eradication than combined antibiotics therapy without disturbing the gut microbiota. These findings indicate a distinct MoA transformation mediated by polysulfide as an alternative candidate to treat H. pylori infection.

关键词：

质子滴线核^(12)N在^(28)Si靶上的核反应总截面测量

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物理学报 2001年第4期50卷 644-648页

作者：宁振江李加兴郭忠言詹文龙王建松肖国青王全进王金川王猛王建峰陈志强中国科学院近代物理研究所兰州730000

描述了 5 0 .4MeV/u的12 N和 42 .3MeV/u的13 N次级放射性束在2 8Si靶上引起的核反应总截面σr 实验研究 ,结果发现12 N的反应总截面σr 比其相邻同位素核13 N有着异常的增大 .这可能是核形变及核子对效应造成的 ,试验中的测量误差也不... 详细信息

描述了 5 0 .4MeV/u的12 N和 42 .3MeV/u的13 N次级放射性束在2 8Si靶上引起的核反应总截面σr 实验研究 ,结果发现12 N的反应总截面σr 比其相邻同位素核13 N有着异常的增大 .这可能是核形变及核子对效应造成的 ,试验中的测量误差也不可忽视 .利用微观Glauber模型计算了12 N在2 8Si靶上的核反应总截面 ,并与实验结果做了比较。

关键词：质子晕反应截面质子滴线核硅靶 Glanber模型

Applications of Cubic MgZnO Thin Films in Metal-Insulator-Silicon Structures

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Chinese Physics Letters 2004年第6期21卷 1135-1138页

作者： LIANGJun WUHui-zhen LAOYan-Feng QIUDong-jiang CHENNai-Bo XUTian-ning StateKeyLaboratoryofFunctionalMaterialsforInformatics ShanghaiInstituteofMicrosystemandInformationTechnologyChineseAcademyofSciencesShanghai200050 DepartmentofPhysics ZhejiangUniversityHangzhou310027

Cubic Mg0.55Zn0.45O thin film alloys have been deposited on Si substrates at low growth temperature. The topography of the cross section of the epitaxial film by scanning electronic microscope demonstrates good morphology and high interfacial quality. The high (001) orientation and wide band-gap (Eg>5.5eV) of the cubic Mg0.55Zn0.45O thin films accord with the guidelines for metal–insulator–silicon (MIS) device applications. Using the cubic ternary thin films as insulators, MIS structures have been fabricated. The capacitance–voltage measurements show the flat band voltage shift VFB of 11.8V and mobile ion density Dmc of 5.57×1010cm−2 for the MIS structure. Leakage current density as low as ~10−7A/cm2 is obtained at E = 700kV/cm by the current–voltage measurements. These unique structural and electrical properties of the fabricated MIS devices indicate that cubic MgZnO materials could become a new candidate for high-κ dielectrics used in silicon integrated circuit technologies.

关键词： Thin films

Anodic-Aluminium-Oxide Template-Assisted Growth of ZnO Nanodots on Si （100） at Low Temperature

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Chinese Physics Letters 2004年第7期21卷 1327-1329页

作者： XUTian-ning WUHui-zhen LAOYan-Feng QIUDong-jiang CHENNai-Bo DAIning DepartmentofPhysics ZhejiangUniversityHangzhou310028 StateKeyLaboratoryofFunctionalMaterialsforInformatics ShanghaiInstituteofMicrosystemandInformationTechnologyChineseAcademyofSciencesShanghai200050 StateKeyLaboratoryforInfraredPhysics ShanghaiInstituteofTechnicalPhysicsChineseAcademyofSciencesShanghai200083

ZnO nanodots have been grown on Si (100) assisted by anodic aluminium oxide (AAO) template at low temperature (350 degrees C). Regular arrangement to a certain extent in local for ZnO nanodots is observed, and the average diameter of nanodots is about 9.7nm. Photoluminescence studies at room temperature for photon energy between 2.0 and 3.6eV reveal a strong single exciton peak at 3.274eV (378.8nm) with the green emission fully quenched. Narrow full width at half maximum (FWHM) of the UV emission band (0.14eV) suggests the as-grown ZnO nanodots have a narrow size distribution.

关键词： Nanodots