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Chinese Chemical Letters 2006年第7期17卷 969-972页

作者： Zhi Bo CHEN Bo Xun ZHANG zhong Xiu HUANG Qing Lin PENG Jia CHEN yu WANG Jian Guo ZHANG Guang Zhi JIANG Wen Shu LI Lan Ying LIU College of Life Science Jilin University Changchun 130023 State Key Laboratory of Electroanalytical Chemistry Chinese Academy of SciencesChangchun Institute of Applied Chemistry Changchun 130022

A novel mimic was synthesized by modifying hyaluronic acid （HA） with tellurium, whose function is similar to that of glutathione peroxidase （GPX）. The structure of TeHA was characterized by means of IR and NMR, the target-Te was located at -CH2OH of the N-acetyl-D- glucosamine of HA. The H202 reducing activity of TeHA, by glutathione （GSH）, was 163.6 U/μmol according to Wilson＇s method. In contrast to other mimics, TeHA displayed the highest activity. Moreover, TeHA accepted many hydroperoxides as its substrates, such as H2O2, cumenyl hydroperoxide （CuOOH） and tert-butyl hydroperoxide （t-BuOOH）, and CuOOH was the optimal substrate of TeHA. A ping-pong mechanism was observed in the steady-state kinetic studies of the reactions catalyzed by TeHA.

关键词： Hyaluronic acid tellurium glutathione peroxidase synthesis kinetics.

High Efficiency Grating Coupler for Coupling between Single-Mode Fiber and SOI Waveguides

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Chinese Physics Letters 2013年第1期30卷 99-102页

作者：张灿孙晶华肖希孙伟民张晓峻储涛余金中俞育德 College of Science Harbin Engineering UniversityHarbin 150001 State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083

A high efficiency grating coupler between single-mode fiber and silicon-on-insulator waveguide is designed by a formula *** 78.5%coupling efficiency(>-1.05 dB)with 3 dB bandwidth about 50 nm for one grating coupler is obtained experimentally and this result is the highest one as far as we *** grating coupler is CMOS compatible which needs only one etch-step and is designed for a standard SOI chip without any Bragg reflector or bottom reflector.

关键词： SOI waveguide Efficiency

Allergen micro-array detection of specific IgE-reactivity in Chinese allergy patients

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Chinese Medical Journal 2011年第24期124卷 4350-4354页

作者： ZHENG Yi-wu LI Jing LAI Xu-xin ZHAO De-yu LIU Xiao-fan LIN Xiao-ping Birgitte Gjesing Paola Palazzo Adriano Mari zhong Nan-shan Michael D Spangfort Research Asia Pacific ALK A/S Guangzhou Guangdong 510230China State Key Laboratory of Respiratory Disease the First Affiliated Hospital Guangzhou Medical College Guangzhou Guangdong 510230 China Department of Respiratory the Affiliated Children＇s Hospital of Nanjing Medical University Nanjing Jiangsu 210008 China Department of Pediatrics the Affiliated Hospital of Chengdu University of Traditional Chinese Medicine Chengdu Sichuan 610072 China Department of Allergy the General Hospital of Shenyang MilitaryCommand Shenyang Liaoning 110017 China Center for Clinical and Experimental Allergology IDI-IRCCSRome Italy

Background Allergen micro-arrays are powerful tools for screening of serum IgE-reactivity. In this study allergen micro-arrays were used to identify dominating IgE-binding allergens and cross-reactivity patterns among selected Chinese allergy patients. Methods The study was conducted using patient sera from the cities of Guangzhou, Nanjing, Chengdu and Shenyang. In total 100 sera with Dermatophagoides pteronyssinus （Der p） specific IgE-levels higher than 50 kU/L were selected for testing against 103 individual allergens. Results Among 100 selected patients, 95% showed IgE-reactivity towards house-dust mite allergens Dermatophagoides farinae （Der f） 1, Der f 2 and Der p 2 and 94% were IgE positive against Der p 1, and 60% of sera contained IgE reacting against allergen Euroglyphus maynei （Eur m） 2. IgE against cat allergen, Felisdomesticus （Fel d） 1, was seen in 20%. Only 2% showed specific IgE-reactivity to Der p 10, a panallergen belonging to the tropomyosin family. Serum IgE-reactivity towards other allergens was in general low. IgE-reactivity against pollen allergens showed geographic differences. Conclusions This study clearly confirms that group 1 and group 2 are major allergens of house dust mites. These selected house-dust mite allergy patients are close to being mono-sensitized. Der p 10 is not an important allergen for cross-reactivity. Specific IgE-sensitization towards pollen allergens is low in southern China compared to other regions. The prevalence of food and stinging insect allergens known to give rise to IgE-mediated cross-reactivity is 2% or less.

关键词： specific immunoglobulin E micro-array Dermatophagoides pteronyssinus Dermatophagoides farinae cross-reactivity

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钠金属负极人工界面保护层的研究进展

Time-Frequency Decomposition of Sunspot Number Fluctuations

储能科学与技术 2023年第5期12卷 1380-1391页

作者：余永诗夏先明黄弘扬姚雨芮先宏钟国彬苏伟余彦广东工业大学材料与能源学院广东广州510006 中国科学技术大学材料科学与工程系安徽合肥230026 南方电网电力科技股份有限公司广东广州510080

钠金属负极由于其高的比容量、低的氧化还原电位以及资源优势被认为是钠电池极佳的负极材料.然而,不稳定的固体电解质界面(SEI)以及钠枝晶生长问题严重阻碍了其实际应用.因此,采用适当的保护策略实现钠金属负极稳定及高效循环是非常必要... 详细信息

钠金属负极由于其高的比容量、低的氧化还原电位以及资源优势被认为是钠电池极佳的负极材料.然而,不稳定的固体电解质界面(SEI)以及钠枝晶生长问题严重阻碍了其实际应用.因此,采用适当的保护策略实现钠金属负极稳定及高效循环是非常必要的.通常在钠金属负极表面构建人工界面层不仅可以有效实现钠均匀沉积/剥离,而且可有效缓解钠金属负极在电化学过程中的体积变化以及抑制钠枝晶生长.为此,该综述归纳总结了人工界面层策略改善钠金属负极的研究进展.首先讨论了自发形成的SEI膜的基本性质,其存在稳定性差、韧性差、机械强度低等问题.针对此,提出构建无机、有机和无机-有机复合人工界面层保护钠金属负极,实现无枝晶钠沉积/剥离.含钠无机材料通常具有高剪切模量、耐腐蚀、结构稳定、高离子电导率等优点,但脆性大;有机材料通常具有结构可设计性、官能团多样性以及高机械韧性特点,但稳定性较弱;无机-有机复合保护膜结合了上述两者的优势,可构建综合性能优异的人工界面层.文中详细阐述了这三种人工界面膜的实施方法与改性效果.最后,建议对人工界面膜持续优化以及采用先进表征技术、理论计算和模拟等深入研究界面稳定性机理.

关键词：钠金属负极钠枝晶固体电解质界面人工界面层

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Time-Frequency Decomposition of Sunspot Number Fluctuations

第36届中国控制会议

作者： yu Lan Qin zhong Cao yu Feng Song Department of mechanical and electrical engineering Yunnan Land and Resources Vocational College Key Laboratory of Computer Technology Application Kunming University of Science and Technology

ISBN: (纸本)9781538629185

Time-frequency decomposition has been widely used to analyze those long periodic signals in solar *** mode decomposition（EMD） is the popular methods to decompose them from time domain to time-frequency ***,the approach brings mode mixing in cycle decomposition and can cause inaccurate results and conclusion in solar *** this paper,a new time-frequency decomposition approach based on synchrosqueezing transform（SST） is *** built a synthetic signal and used an echolocation pulse of a bat to illustrate the performance of the SST approach to the ***,the sunspot number fluctuations（SNF） was analyzed with the SST,and several new periods are extracted that fail to found with the EMD *** result demonstrates that the SST can accurately decompose those intrinsic cycles of SNF,and better understand the phenomenon of solar activity.

关键词： Time-Frequency Analysis Sunspot Number Synchrosqueezing Transform Empirical Mode Decomposition

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窄河道致密气藏水平井密切割体积压裂技术

内蒙古石油化工 2022年第11期48卷 58-61页

作者：黄禹忠中国石化西南油气分公司采气三厂四川德阳618100

ZJ气田属于低孔、低渗的窄河道致密砂岩气藏,水平井分段压裂改造成为了该气藏高效开发的有力工程手段。但随着滚动开发的进程,开发对象以越来越差的II、III类储层为主,目前采用的水平井分段压裂技术无法满足高效开发的要求,分析认为主... 详细信息

ZJ气田属于低孔、低渗的窄河道致密砂岩气藏,水平井分段压裂改造成为了该气藏高效开发的有力工程手段。但随着滚动开发的进程,开发对象以越来越差的II、III类储层为主,目前采用的水平井分段压裂技术无法满足高效开发的要求,分析认为主要原因是:目前以封隔器分段为主的水平井仅能满足单段单簇分段、裂缝间距大、加砂规模小、水平段横向纵向缝控体积小,同时因施工排量低而使用胍胶交联压裂液体系,其对物性更差的储层伤害更大,压裂后井筒管柱无法满足冲砂条件,沉砂导致井筒不畅。为解决上述问题,采用“低粘降阻水压裂液、多簇布缝缩短裂缝间距、大排量施工、暂堵技术、组合粒径、强加砂、压后钻扫井筒”等为关键技术的水平井密切割体积压裂技术,在JS318HF等4口井进行先导试验,压后平均单井测试产量16.12×10^(4)m^(3)/d,无阻流量48.12×10^(4)m^(3)/d,测试产量是邻井常规技术的5.9倍,其中,JS318HF井获得103.5×10^(4)m^(3)/d无阻流量,创川西致密气最高产量,JS220-1HF以Ⅲ类储层为主,测试产量是同井场以II类储层为的JS220井的13.9倍,表明该技术在ZJ气田窄河道致密气藏具有较好的适应性,可进一步的提高开发效果。

关键词：致密砂岩低粘降阻水密切割强加砂

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大学生劳动教育思政教育功能探析

菏泽学院学报 2022年第4期44卷 68-72页

作者：李玉忠菏泽学院外国语学院山东菏泽274015

劳动教育和思政教育都是“五育”并举的重要内容,劳动教育能够增强思政教育的实效性,有利于实现思政教育的效果。在大学生中开展劳动教育,有助于培养他们艰苦奋斗的品质,提高他们的社会责任意识,有助于他们践行社会主义核心价值观。为... 详细信息

劳动教育和思政教育都是“五育”并举的重要内容,劳动教育能够增强思政教育的实效性,有利于实现思政教育的效果。在大学生中开展劳动教育,有助于培养他们艰苦奋斗的品质,提高他们的社会责任意识,有助于他们践行社会主义核心价值观。为更好地实现劳动教育思政教育功能,高校应明确大学生的主体地位,增强其自我教育能力;创新教学方法,实现劳动教育全覆盖;丰富教育方式,激发大学生的劳动情感;建设校外实习基地,培养他们的意志品质;发挥家庭示范作用,提升他们的劳动实践能力。

关键词：劳动教育思政教育劳动实践社会主义核心价值观

Direct Electroless Nickel Plating on AZ91D Magnesium Alloy from a Sulfate Solution and its Deposition Mechanism

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材料热处理学报 2004年第5B期25卷 1098-1101页

作者： GUChang-dong LIANJian-she LIGuang-yu NIULi-yuan JIANGzhong-hao TheKeyLabofAutomobileMaterials MinistryofEducationChinaCollegeofMaterialsScienceandEngineeringJilinUniversityNanlingCampusChangchun130025China

A bath of electroless plating Ni on the AZ91D magnesium alloy, containing sulfate nickel, was given in this paper. The nucleation mechanism of Ni-P deposits on the AZ91D magnesium alloy was studied by using XRD and SEM. The electroless Ni-P deposits were preferentially nucleated on the (Mg17Al12) phase and extended to the primary and eutectic a phases of the AZ91D magnesium alloy.

关键词：非电解淀积 AZ91D 镁合金硫酸盐溶液

Shock Tube Studies on Recombination Kinetics of Sodium Ion with Electron

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Chinese Physics Letters 2001年第2期18卷 289-291页

作者：王苏崔季平何宇中范秉诚王静 Laboratory of High Temperature Gas Dynamics Institute of MechanicsChinese Academy of SciencesBeijing 100080

he ionization kinetics of sodium diluted in argon is studied in a shock tube,in which the test gas mixture is ionized by a reflected shock wave and subsequently quenched by a strong rarefaction wave.A Langmuir electrostatic probe is used to monitor the variation of the ion number density at the reflection shock wave *** working state of the probe is in the near free fall region and a correction for reduction of the probe current due to elastic scattering in the probe sheath is *** the temperature range of 800 to 2600 K and in the ambience of argon gas,the three-body recombination rate coefficient of the sodium ion with electron is determined:3.43 × 10^(-14)T-^(3.77)cm^(6).s^(-1).

关键词： diluted correction Electron

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巨大胎儿肝血管瘤的临床结局:22例分析

中华围产医学杂志 2022年第4期25卷 278-283页

作者：林土连谢杰忠何秋明余家康钟微广州市妇女儿童医疗中心新生儿外科监护室广州510623

目的探讨巨大胎儿肝血管瘤(giant fetal hepatic hemangioma, GFHH)的临床特征及结局。方法回顾性分析于2012年8月1日至2020年3月31日在广州市妇女儿童医疗中心确诊, 生后接受保守观察或治疗并至少随访1年的GFHH患儿。收集这些患儿出生... 详细信息

目的探讨巨大胎儿肝血管瘤(giant fetal hepatic hemangioma, GFHH)的临床特征及结局。方法回顾性分析于2012年8月1日至2020年3月31日在广州市妇女儿童医疗中心确诊, 生后接受保守观察或治疗并至少随访1年的GFHH患儿。收集这些患儿出生前后的资料, 分析GFHH的特征(大小、位置和病变类型)、患儿特征、临床表现、治疗和预后。结果最终纳入22例患儿。(1)22例患儿中, 男性17例(77.3%), 女性5例(22.7%);首次B超诊断GFHH的胎龄为(35.0±2.8)周, 范围为30~40周+1;出生胎龄为(38.9±1.5)周, 范围为33周+4~40周+3;早产1例(4.5%)。15例(68.2%)经阴道娩出, 7例(31.8%)因"胎儿窘迫"剖宫产娩出。22例患儿中, 21例(95.5%)为局灶型, 1例(4.5%)为多发型。22例胎儿期接受2.5次(2~4次)B超检查, 发现血管瘤直径呈现随胎龄增加而增大的趋势, 至出生时达到最大[56 mm(42~99 mm)]。9例(40.9%)患儿经超声诊断为GFHH, 12例经MRI诊断为GFHH。其中6例超声和MRI均分别诊断为GFHH。其余病例的超声或MRI均表现为占位性病变。(2)10例患儿仅接受随访观察(保守组), 12例患儿接受药物治疗(治疗组)。治疗组患儿血小板减少的比例明显低于保守组(7/12与0/10, Fisher精确概率法, P=0.014)。保守组患儿无合并心功能异常或肺动脉高压;治疗组2例合并肺动脉高压。2组患儿的结局差异无统计学意义。(3)随访3.3年(1.2~7.0年), 所有患儿均存活。保守组均未转行药物治疗, 该组1例于2岁时病灶完全消退, 其余9例病灶部分消退。治疗组12例均口服普萘洛尔治疗, 其中3例治疗早期联合使用地塞米松, 2例患儿同时使用雷帕霉素, 2例患儿因早期病灶逐渐增大, 接受了介入治疗。结果该组2例患儿分别于1.7及5.5岁时病灶完全消退, 其余10例病灶部分消退。结论 GFHH随着胎龄的增加而增长。部分患儿的影像学表现可能不典型。对于生后无症状的患儿可考虑仅随访观察。而对于出现呼吸困难、腹部膨隆(呕吐)等症状、伴或不伴异常检验结果的患儿可考虑药物治疗;如仍无效, 可行介入治疗。GFHH患儿多可存活, 长期疗效较满意。

关键词：肝肿瘤血管瘤超声检查产前婴儿新生