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Improved cadmium uptake and accumulation in the hyperaccumulator Sedum alfredii:the impact of citric acid and tartaric acid

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第2期14卷 106-114页

作者： Ling-li lu Sheng-ke tian Xiao-e YANG hong-yun PENG Ting-qiang LI Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health College of Environmental and Resource SciencesZhejiang University

The elucidation of a natural strategy for metal hyperaccumulation enables the rational design of technologies for the clean-up of metal-contaminated *** acid has been suggested to be involved in toxic metallic element tolerance,translocation,and accumulation in *** impact of exogenous organic acids on cadmium(Cd) uptake and translocation in the zinc(Zn)/Cd co-hyperaccumulator Sedum alfredii was investigated in the present *** the addition of organic acids,short-term(2 h) root uptake of 109 Cd increased significantly,and higher 109 Cd contents in roots and shoots were noted 24 h after uptake,when compared to *** 85% of the 109 Cd taken up was distributed to the shoots in plants with citric acid(CA) treatments,as compared with 75% within *** such effect was observed for tartaric acid(TA).Reduced growth under Cd stress was significantly alleviated by low ***-term application of the two organic acids both resulted in elevated Cd in plants,but the effects varied with exposure time and *** results imply that CA may be involved in the processes of Cd uptake,translocation and tolerance in ***,whereas the impact of TA is mainly on the root uptake of Cd.

关键词： Hyperaccumulation Cadmium Organic acid Sedum alfredii Translocation Uptake

Can big data bring a breakthrough for software automation?

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Science China(Information Sciences) 2018年第5期61卷 288-290页

作者： hong MEI lu ZHANG Key Laboratory on High-Confidence Software Technologies (Ministry of Education) Peking University Beijing Institute of Technology

Software automation[1]aims to automatically generate computer programs from formal or informal *** it may release programmers from tedious programming tasks,software automation has long been a dream of computer ***,since software systems constantly evolve during their life cycles,software automation should cover all development activities related to both generating new code and changing

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锆基金属有机框架捕获黄连中的生物碱类药物活性成分

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分析测试学报 2025年第1期44卷 188-194页

作者：司甜甜赵薇王慧张红玉刘小烨容蓉冯娟娟山东中医药大学药学院山东济南250355 济南大学化学化工学院山东济南250022

采用溶剂热法制备了锆基MOF-808,利用其结构优势实现了中药黄连中生物碱类药物活性成分的富集与捕获,并结合其结构特点探讨了其协同低共熔溶剂捕获生物碱类活性成分过程中的相互作用。通过优化孵育捕获等条件,对黄连粗提液中药根碱的回... 详细信息

采用溶剂热法制备了锆基MOF-808,利用其结构优势实现了中药黄连中生物碱类药物活性成分的富集与捕获,并结合其结构特点探讨了其协同低共熔溶剂捕获生物碱类活性成分过程中的相互作用。通过优化孵育捕获等条件,对黄连粗提液中药根碱的回收率达到85.78%,结合高效液相色谱技术建立了检测黄连粗提液中5种生物碱类活性成分的方法。方法的线性范围为0.1~300μg·L^(-1),检出限为0.02~0.05μg·L^(-1),相对标准偏差为0.40%~4.7%,加标回收率达到69.7%~128%。该研究实现了中药黄连中生物碱类活性成分的高效、快速富集与捕获,为MOFs材料在选择性捕获与富集中药有效成分等领域的研究提供了新思路。

关键词：金属有机框架选择性富集色谱分离生物碱活性成分黄连

Gallbladder bleeding along with cholecystocolonic fistula:a case report

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Gastroenterology Report 2021年第1期9卷 81-84,I0003页

作者： Hai-Lin Yan Bo Lin Qing lu tian-tian Lei hong-Sheng Ma Jin-Lin Yang Department of Gastroenterology West China Hospital of Sichuan UniversityChengduSichuanP.R.China Department of Day Surgery West China Hospital of Sichuan UniversityChengduSichuanP.R.China

Introduction Gallstone disease is a major public-health problem,with a high prevalence ranging from 10%to 15%[1].Acute cholecystitis,chronic cholecystitis,choledocholithiasis,and gallstone pancreatitis are all common complications in clinical ***,when gallstones migrate to adjacent viscera or vascular structures,the clinical challenge is far less familiar[2].Gallbladder(GB)bleeding is seldom reported,which mostly manifests as *** cases are caused by cystic artery aneurysm and rupture and others are due to GB rupture[3].Gallstones can erode through the gallbladder wall or bile duct into the adjacent portion,resulting in a cholecystocolonic fistula(CCF),which is a rare complication of gallstones with cholecystitis[4].Here,we share a case of gallbladder bleeding along with cholecystocolonic fistula that has not yet been *** hope that,through our unusual case,clinicians gain an enhanced understanding of rare complications caused by gallstones.

关键词： cholecystitis rupture bleeding

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股骨转子间骨折3种内固定效果比较

实用骨科杂志 2005年第2期11卷 137-138页

作者：张本寿洪天禄黄洪魏福堂徐志久贾凌储辉邹吉林郑翔中国人民解放军第100医院外科江苏苏州215007 苏大附属第一医院骨科江苏苏州215000

目的　探讨股骨转子间骨折3种内固定方法的效果差异。方法　30例股骨转子间骨折内固定方法分别采用Gam ma钉12例,滑动加压鹅头钉12例,AO角钢板6例。术后随访时间为6～6 0个月(平均2 9个月) ,3～30个月(平均18个月)。4～36个月(平均2 6个... 详细信息

目的　探讨股骨转子间骨折3种内固定方法的效果差异。方法　30例股骨转子间骨折内固定方法分别采用Gam ma钉12例,滑动加压鹅头钉12例,AO角钢板6例。术后随访时间为6～6 0个月(平均2 9个月) ,3～30个月(平均18个月)。4～36个月(平均2 6个月)。结果　30例皆愈合,关节功能优良率分别为91.6 6 % ,83.33% ,5 0 .0 %。结论　结果说明,股骨转子间骨折3种内固定治疗方法中,Gamma钉技术操作简单,固定牢靠,手术损伤小,并发感染率低等优点。

关键词：效果比较股骨转子间骨折 Gamma钉滑动加压鹅头钉内固定方法 AO角钢板随访时间关节功能治疗方法技术操作手术损伤平均优良率感染率

The Role of Calcium in Mediating SlIAAs Expression in Tomato Pedicel Explants

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Agricultural Sciences in China 2010年第7期9卷 980-984页

作者： ZUO Xian-hong XU Tao QI Ming-fang lu Shuang-shuang LI Jin-hong LI hong GAO Song LI tian-lai Key Laboratory of Protected Horticulture of Liaoning Province/College of Horticulture Shenyang Agricultural University Shenyang 110161 P.R. China

In order to illuminate the effect of calcium on the IAA signal transduction,we studied the expression of eight SlIAA genes which were up-regulated by calcium during the abscission after short-term（1 h） and long-term（16 h） treatments with calcium,IAA and calcium *** results indicated that calcium induced SlIAAs expression in 1 h at low concentration,EGTA affected little SlIAAs expression;it also increased IAA-induced transcript level of SlIAAs,TFP（named trifluoperazine） decreased most SlIAAs expression below the level of calcium combined with IAA-induced expression,except for ***-term treatment of calcium or calcium inhibitors suppressed some SlIAAs expression,whereas TFP enhanced all SlIAAs ***,SlIAA29 was induced by most treatments excluding 16 h EGTA.

关键词： tomato calcium IAA calcium inhibitors SIlAA gene

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不同防疫阶段下应急医疗物资调度模型

物流科技 2025年第1期48卷 83-88页

作者：叶露李弘郭冰浙江理工大学经济管理学院浙江杭州310018

比较了异常紧急、紧急、常态下,基于两种紧急度计算形式得到的模型仿真结果,在模型建立的基础上,给出了两期对医用防护服、N95口罩的分配方案。结果表明:选择恰当的紧急度计算形式,所构建的模型能在三种防疫阶段下均能确保多需求点之间... 详细信息

比较了异常紧急、紧急、常态下,基于两种紧急度计算形式得到的模型仿真结果,在模型建立的基础上,给出了两期对医用防护服、N95口罩的分配方案。结果表明:选择恰当的紧急度计算形式,所构建的模型能在三种防疫阶段下均能确保多需求点之间物资分配的公平性,降低需求点在某一阶段产生较大的物资短缺损失的可能,使得应急物资分配更合理。

关键词：最优化理论应急物资需求满足率调度模型

Response of a transmission tower-line system at a canyon site to spatially varying ground motions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第2期12卷 103-120页

作者： hong-nan LI Feng-long BAI Li tian hong HAO State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China Sehool of Civil and Resource Engineering University of Western Australia WA 6009 Australia

Collapses of transmission towers were often observed in previous large earthquakes such as the Chi-Chi earthquake in Taiwan and Wenchuan earthquake in Sichuan,China. These collapses were partially caused by the pulling forces from the transmission lines generated from out-of-phase responses of the adjacent towers owing to spatially varying earthquake ground motions. In this paper,a 3D finite element model of the transmission tower-line system is established considering the geometric nonlinearity of transmission lines. The nonlinear responses of the structural system at a canyon site are analyzed subjected to spatially varying ground motions. The spatial variations of ground motion associated with the wave passage,coherency loss,and local site effects are given. The spatially varying ground motions are simulated stochastically based on an empirical coherency loss function and a filtered Tajimi-Kanai power spectral density function. The site effect is considered by a transfer function derived from 1D wave propagation theory. Compared with structural responses calculated using the uniform ground motion and delayed excitations,numerical results indicate that seismic responses of transmission towers and power lines are amplified when considering spatially varying ground motions including site effects. Each factor of ground motion spatial variations has a significant effect on the seismic response of the structure,especially for the local site effect. Therefore,neglecting the earthquake ground motion spatial variations may lead to a substantial underestimation of the response of transmission tower-line system during strong earthquakes. Each effect of ground motion spatial variations should be incorporated in seismic analysis of the structural system.

关键词： Transmission tower-line system Canyon site Spatially varying ground motions Coherency loss Local site effect

SERS and EC dual-mode detection for dopamine based on WO_(3)-SnO_(2)nanoflake arrays

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Nano Research 2023年第3期16卷 4049-4054页

作者： Linya lu Yan Zhou Tingting Zheng Yang tian School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241China State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200241China

As an important neurotransmitter,the detection of dopamine(DA)is of great significance for the diagnosis and treatment of neurological *** this study,WO_(3)-SnO_(2)nanoflake arrays were synthesized on fluorine-doped tin oxide(FTO)by hydrothermal synthesis and pulse electrodeposition,revealing significant surface-enhanced Raman scattering(SERS)activity with an enhancement factor(EF)reaching 4.79×10^(7).The obvious EF was mainly ascribed to the charge transfer between WO_(3)-SnO_(2)and methylene blue(MB)based on chemical mechanism(CM)and the molecular resonance *** the competitive adsorption of DA and absorbed MB,we prepared a SERS and electrochemical(EC)dual-mode detection platform of DA based on the WO_(3)-SnO_(2)nanoflake *** linear range(LR)was 5.00-1.75×10^(3)nmol/L,and the detection limits(LODs)were as low as 1.50 and 0.80 nmol/L by SERS and EC ***,the developed detection platform can shield the interference of many neurotransmitters similar to DA,showing good selectivity and excellent *** general,the SERS-EC dual-mode detection platform can be well applied to the detection of DA in cell lysate,demonstrating great potential in diagnosis of neurodegenerative diseases.

关键词： surface enhanced Raman scattering electrochemical WO3-SnO2 nanoflake arrays charge transfer dopamine