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Soil-water characteristics of Gaomiaozi bentonite by vapour equilibrium technique

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Journal of Rock Mechanics and Geotechnical Engineering 2014年第1期6卷 48-54页

作者： Wenjing Sun de'an Sun Lei Fang Shiqing Liu department of civil Engineering Shanghai University

Soil-water characteristics of Gaomiaozi(GMZ)ca-bentonite at high suctions(3–287MPa)are measured by vapour equilibrium *** soil-water retention curve(SWRc)of samples with the same initial compaction states is obtained in drying and wetting *** high suctions,the hysteresis behaviour is not obvious in relationship between water content and suction,while the opposite holds between degree of saturation and *** suction variation can change its water retention behaviour and void ***,changes of void ratio can bring about changes in degree of ***,the total change in degree of saturation includes changes caused by suction and that by void *** the space of degree of saturation and suction,the SWRc at constant void ratio shifts to the direction of higher suctions with decreasing void ***,the relationship between water content and suction is less affected by changes of void *** degree of saturation decreases approximately linearly with increasing void ratio at a constant ***,the slope of the line decreases with increasing suction and they show an approximately linear relationship in semi-logarithmical *** this linear relationship,the variation of degree of saturation caused by the change in void ratio can be ***,SWRc at a constant void ratio can be determined from SWRc at different void ratios.

关键词： Gaomiaozi(GMZ) ca-bentonite Vapour equilibrium technique Soil-water retention curve(SWRc) Void ratio degree of saturation Hydro-mechanical coupled parameter SWRc at constant void ratio

5-HTR1A基因rs6295多态性与抑郁症伴自伤行为的相关研究

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医学信息 2024年第9期37卷 179-183页

作者：郁德波林志雄林举达广东医科大学第一临床医学院广东医科大学附属医院精神心理科

抑郁症是一种高发病率的慢性疾病，然而对抑郁症的病因及发病机制的了解仍然不足，其强大的遗传能力和遗传基础已从家庭、双胞胎和收养研究中得到很好的证实，5-HTR1A启动子的rs6295多态性与抑郁症伴自伤行为有关。本文就5-HTR1A基因rs6... 详细信息

抑郁症是一种高发病率的慢性疾病，然而对抑郁症的病因及发病机制的了解仍然不足，其强大的遗传能力和遗传基础已从家庭、双胞胎和收养研究中得到很好的证实，5-HTR1A启动子的rs6295多态性与抑郁症伴自伤行为有关。本文就5-HTR1A基因rs6295多态性与抑郁症伴自伤行为之间的发病机制、研究现况和治疗进展进行综述，以期为预测抑郁障碍伴NSSI的遗传易感性提供参考依据。

关键词：人5-羟色胺受体1A 抑郁症自伤行为基因多态性

Refnement of the supercontinent cycle with Hf, Nd and Sr isotopes

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Geoscience Frontiers 2013年第6期4卷 667-680页

作者： Kent c.condie Richard c.Aster department of Earth and Environmental Science New Mexico Institute of Mining and Technology Geosciences department Colorado State University

The combined use of Hf,Nd and Sr isotopes is more useful in understanding the supercontinent cycle than the use of only Hf isotopic data from detrital *** and Nd seawater isotopes,although not as precise as εNd and εHf distributions,also record input from ocean ridge *** detrital zircons where sources cannot be precisely located because of crustal recycling,both the location and tectonic setting often can be constrained for whole-rock Nd isotopic ***,primary zircon sources may not reside on the same continent as derivative detrital zircons due to supercontinent breakup and *** to all of the isotopic studies are geographic sampling biases reflecting outcrop distributions,river system sampling,or geologists,and these may be responsible for most of the decorrelation observed between isotopic *** between 3.5 and 2 Ga based on εHf median values of four detrital zircon databases as well as our compiled εNd database are noisy but uniformly distributed in time,whereas data between 2 and 1 Ga data are more tightly clustered with smaller *** age peaks suggest that both isotopic systems are sampling similar types of *** after 1 Ga and before 3.5 Ga do we see wide variations and significant disagreement between databases,which may partially reflect variations in both the number of sample locations and the number of samples per *** and internal orogens show similar patterns in εNd and εHfwith age suggesting that both juvenile and reworked crustal components are produced in both types of orogens with similar ***,both types of orogens clearly produce more juvenile isotopic signatures in retreating mode than in advancing *** secular changes in εHf and εNd distributions correlate with the supercontinent *** supercontinent breakup is correlated with short-lived decreasing εHf and εNd （≤ 100 Myr） for most supercontinents,there is no isotopic evidence for

关键词： Supercontinent cycle Hf isotopes Nd isotopes collisional orogens Accretionary orogens

Perforating and ophthalmic artery variants from the anterior cerebral artery:Two case reports

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World Journal of clinical cases 2023年第18期11卷 4392-4396页

作者： Zhi-Xiao Mo Wen Li de-Fa Wang department of Neurosurgery Qinghai Provincial People's HospitalXining 810007Qinghai ProvinceChina department of Neurosurgery The First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina department of Neurosurgery Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215006Jiangsu ProvinceChina

BAcKGROUND The diagnosis and therapy during surgery depend largely on a full account of anatomic *** from regular structures,the common,less common or even uncommon anatomic variations are critical for procedural *** is especially true during craniocerebral microsurgery,where small vascular variations can affect the final surgical results and patient *** SUMMARY Herein,two rare variations concerning the A1(horizontal)segment of anterior cerebral artery(AcA1)were *** enabled the communication between perforating branch of AcA1 and dural artery of anterior skull base,which was discovered during *** other was ophthalmic artery(OA)originating from AcA1,shown on digital *** In this study,we found two rare anatomical *** was an abnormal OA originated from the anterior communicating *** other was a perforating branch of the A1 segment of the anterior cerebral artery,which communicated with meningeal vessels in the anterior skull *** finding is of great significance for the treatment of anterior communicating artery aneurysm or in other anterior skull base surgery.

关键词： Microsurgical anatomy Arterial variations Ophthalmic artery Perforating branches case report

Envelope Solitons Perturbed by Stochastic Noise

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communications in Theoretical Physics 2009年第11期52卷 897-900页

作者： REN Xi-Mei ZENG Shang-You ZHAO de-Jiang TANG Yi Faculty of Materials Optoelectronics and Physics Xiangtan University Xiangtan 411005 China

We perform langevin dynamics simulation for envelope solitons in an FPU-β lattice,with the nearestneighborinteraction and quartic *** get the motion equations of our discrete system by adding noiseand damping to the set of deterministic motion *** define'half-time'as the time when the amplitude of theenvelope soliton decreases by half due to *** then the mass,center and half-time of the perturbed envelopesoliton are numerically simulated,beginning with the discrete envelope soliton at *** show successfully hownoise affects behavior of the envelope soliton.

关键词： envelope soliton noise damping

A distributed location management strategy for next- generation IP-based wireless networks

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The Journal of china Universities of Posts and Telecommunications 2006年第3期13卷 38-42页

作者： SONG Mei FENG Rui-jun HUANG Jian-wen SONG Jun-de PcN and cAD center School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

Location management is the most important function in mobility management technology. The hierarchical structure of the proposed hierarchical network-layer mobility management （HNMM） can reduce the signaling cost. The selforganizing topology scheme can enhance the robustness and quality of the mobility management. The information of location of the mobile node is stored in the distributed database, which makes the storage of the location information more reliable and robust, and more flexible strategies can be used. The numeric results show that HNMM can provide better performance than the general structure of mobile IPv6, when the mobile nodes move frequently and when there is high traffic throughput.

关键词： location management mobile IPv6 mobility management IP-based wireless networks

花生干旱诱导型启动子Ah MYB44-11-Pro的克隆与功能分析

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作物学报 2024年第9期50卷 2157-2166页

作者：刘永惠沈一沈悦梁满沙琴张旭尧陈志德江苏省农业科学院经济作物研究所江苏南京210014

干旱是严重威胁我国花生产量与品质的主要环境因素之一。为阐明干旱胁迫响应基因AhMYB44-11的调控机制,揭示其启动子的功能,本研究从花生基因组中扩增获得该基因的启动子序列AhMYB44-11-Pro,分别构建全长及5'端部分缺失启动子的GUS融合... 详细信息

干旱是严重威胁我国花生产量与品质的主要环境因素之一。为阐明干旱胁迫响应基因AhMYB44-11的调控机制,揭示其启动子的功能,本研究从花生基因组中扩增获得该基因的启动子序列AhMYB44-11-Pro,分别构建全长及5'端部分缺失启动子的GUS融合表达载体,利用农杆菌介导的遗传转化体系,分析启动子的活性和表达模式。结果显示,相比于同源基因AhMYB44-01的启动子,AhMYB44-11-Pro具有更多的MBS、Myb-bindingsit等响应干旱胁迫的顺式作用元件;同时其拟南芥转基因阳性植株经脱水处理后GUS染色加深,GUS酶活性显著增加;表明启动子的活性受干旱胁迫诱导表达,证实AhMYB44-11-Pro是一个干旱诱导型启动子。此外, AhMYB44-11-Pro含有种子胚乳特异表达元件和赤霉素响应元件, GUS染色显示在角果发育过程中其活性呈上调趋势,由此推测AhMYB44-11可能在种子发育尤其是干物质积累过程中发挥重要作用。本研究结果将为全面解析AhMYB44的生物学功能奠定基础,也为作物抗旱遗传改良提供参考依据。

关键词：花生 AhMYB44 启动子干旱胁迫 GUS活性

长刺蒺藜草两异型种子形态和萌发过程的生理动态特征比较

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草业学报 2024年第9期33卷 40-50页

作者：郝丽芬徐晓阳季玉王瑞吴德宝李宇宇林克剑农业农村部人工草地生物灾害监测与绿色防控重点实验室中国农业科学院草原研究所内蒙古呼和浩特010010 植物病虫害生物学国家重点实验室中国农业科学院植物保护研究所北京100193 安徽农业大学植物保护学院安徽合肥230036

长刺蒺藜草刺苞内含有M型和P型两异型种子,两异型种子萌发具有异时性,是其适应异质性环境的策略。为了揭示导致两异型种子异时萌发的内在生理因素,本研究首先比较了两异型种子形态结构和萌发特性指标,同时测定了萌发过程中(干燥、吸胀... 详细信息

长刺蒺藜草刺苞内含有M型和P型两异型种子,两异型种子萌发具有异时性,是其适应异质性环境的策略。为了揭示导致两异型种子异时萌发的内在生理因素,本研究首先比较了两异型种子形态结构和萌发特性指标,同时测定了萌发过程中(干燥、吸胀、露白和出芽期)的生理指标。结果表明,长刺蒺藜草异型种子(M型、P型、刺苞内M型)千粒重、吸水量和萌发率的变化趋势为:刺苞内M型>M型>P型;含水量的变化趋势为:P型>M型>刺苞。P型种子比M型种子种皮致密,淀粉粒出现水解孔滞后,且水解孔更小;干燥期P型种子的脱落酸(ABA)含量显著高于M型种子,而露白期P型种子赤霉素(GA_(4))含量高于M型种子;M型种子可溶性蛋白含量在干燥、吸胀和露白阶段均高于P型种子;在萌发前期(干燥和吸胀期)两异型种子可溶性糖含量无显著差异,在露白和出芽期P型种子可溶性糖含量显著高于M型种子;干燥、吸胀和露白期M型种子葡萄糖-6-磷酸脱氢酶(G6PDH)活性显著高于P型种子,出芽期P型种子显著高于M型种子。综上所述,M型种子先于P型种子萌发,这与种皮结构、ABA/GA_(4)、可溶性蛋白含量和G6PDH活性显著相关,与可溶性糖基础含量无关,M型种子和P型种子的内在萌发机制存在明显差异,可为制定长刺蒺藜草种子引发剂提供理论指导。

关键词：异型种子萌发形态结构脱落酸赤霉素可溶性蛋白可溶性糖葡萄糖-6-磷酸脱氢酶

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Topographies of Organized Monolayer of α-Amylase Observed by Atomic Force Microscopy

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chinese chemical Letters 2001年第1期12卷 87-90页

作者： Lin HE Xian Fu LIN de Shui LV Zhi chun cHEN Institute of Applied chemistry of Zhejiang University Hangzhou 310027

In this paper, (-amylase organized monolayer was assembled on the surface of the PET-cO2- substrate in different conditions. The different topography of the (-amylase/PET monolayer was obtained by AFM in tapping mode.

关键词： Topography of monolayer (-amylase AFM self-assembly.