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Health Risks Assessment of Heavy Metal Pollution in the Soil-Crop System from an E-Waste Dismantling Area

Phyton-International Journal of Experimental Botany 2022年第12期91卷 2669-2685页

作者： Shengting Rao Jia Fang keli zhao Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang Agriculture and Forestry UniversityHangzhou311300China

Soil is an essential resource for agricultural *** order to investigate the pollution situation of heavy metals in the soil-crop system in the e-waste dismantling area,the crop and soil samples(226 pairs,including leaf vegetables,solanaceous vegetables,root vegetables,and fruits)around the e-waste dismantling area in southeastern Zhejiang Province were *** concentrations of Cd,Cu,Pb,and Cr were *** average concentrations of Cd,Cu,Pb,and Cr in soils were 0.94,107.79,80.28,and 78.14 mg kg-1,respectively,and their corresponding concentrations in crops were 0.024,0.7,0.041,and 0.06 mg kg-1,*** transfer capacity of leaf vegetables was significantly higher than that of non-leaf vegetables,and the accumulation of four heavy metals in crops tended to be Cd>Cu>Cr/*** pollution index’s results revealed that the soil pollution degree under different land uses ranked as root vegetables soil>leaf vegetables soil>solanaceous vegetables soil>fruit *** carcinogenic and non-carcinogenic risks of heavy metal exposure were ranked as food intake>accidental ingestion>dermal contact>*** comprehensive non-carcinogenic risk was ranked as Cr>Cd>Pb/*** results could be used to provide useful information for further crop cultivation layout in the study area,which can guarantee the local residents’health and food safety.

关键词： E-waste dismantling area soil-crop system heavy metal pollution risk assessment

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Single crystal-single crystal bonding of langasite exhibited high strength of 23.28 MPa

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Journal of Materials Science & Technology 2023年第29期160卷 139-147页

作者： Guangyao Pei Binghe Ma Tao Ye Zhonggang Zhang keli zhao Jinjun Deng Seeram Ramakrishna Jian Luo Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace Northwestern Polytechnical UniversityXi’an 710072China Centre for Nanofibers and Nanotechnology National University of Singapore117576Singapore

Langasite(LGS,La_(3)Ga_(5)SiO_(14))is a promising material in high-temperature piezoelectric devices due to its excellent thermal stability,piezoelectricity,and electrical property.A major challenge in the development of LGS-based devices is to form high-strength bonding of the brittle ***,we report that the single crystal-single crystal(dual-SC)bonding of LGS is realized through thermal activation under a low com-pression of 50 kPa for the first time.A record bonding strength of 23.28 MPa is achieved within the dual-SC bonded LGS/LGS structure(with a high bonding ratio exceeding 93%),which is 5 times higher than that of the recent reported LGS/LGS bonding structure(in which a relatively fragile amorphous interface layer is formed between the two LGS samples).The smooth and void-free dual-SC bonding interface of LGS is verified via the cross-sectional transmission electron microscopy(TEM)observations.

关键词： Thermal activation Single crystal-single crystal bonding Langasite High-strength Low compression

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Spatial Heterogeneity of Selected Soil Nutrients Related to Torreya grandis *** Plantation in Southeastern China

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Phyton-International Journal of Experimental Botany 2022年第10期91卷 2221-2233页

作者： Longlong Bai Yong Zhang Min Wang Ying He Tao Ye keli zhao Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang Agriculture and Forestry UniversityHangzhou311300China Zhejiang Public Welfare Forest and State Forest Farm Management Station Hangzhou310020China

Chinese Torreya grandis(Torreya grandis ***)is a unique economic tree species in *** management related to application of chemical fertilizer and herbicides caused serious soil quality degradation of Chinese Torreya grandis ***,120 soil samples were collected from the main disbtributed areas of Chinese Torreya grandis in Southeastern *** this area,soil pH values varied from 3.68 to 6.78,with a median value of 4.91,implying a trend of *** average concentrations of organic matter,available nitrogen,available phosphorus and available potassium were 27.52 g kg^(-1),135.77 mg kg^(-1),15.12 mg kg^(-1),and 153.43 mg kg^(-1),*** results of spatial analysis revealed that target variables had clear spatial *** soil fertility was relevantly high in most of the study area,with soil nutrient imbalances *** stand age had a large effect on soil properties,which were also mainly influenced by human ***,it is necessary to change the fertilization method for a sustainable management of Torreya grandis plantation.

关键词： soil fertility eastern

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天禄、獬豸、麒麟考辨——从永陵石兽为“天禄”谈起

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文博 2003年第4期 38-42,48页

作者：赵克礼陕西师范大学历史文化学院

永陵"石兽"是保存至今为数极少的北朝陵墓石雕作品.因其雕刻风格古朴简洁、造型奇特怪异,故长期以来难辨其属.本文欲以查阅文献、实地考察和索引旁证相结合的方法,对其所属及其相关问题作一考辨,以求得方家指教.

关键词：永陵石兽 “天禄” “獬豸” “麒麟” 石雕艺术

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NIM插道式四路多定标系统的设计

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核电子学与探测技术 1989年第4期9卷 237-240页

作者：赵克礼北京核仪器厂

NIM插道式四路多定标系统,是一个基于NIM式硬件多道的分析器的四路多定标系统。NIM式硬件1024多道分析器由两道NIM插宽的ADC和四道NIM插宽的主机组成,它除了具备一般多道分析器功能外,还专门设计了双路、四路多定标功能。它的取样时间、... 详细信息

NIM插道式四路多定标系统,是一个基于NIM式硬件多道的分析器的四路多定标系统。NIM式硬件1024多道分析器由两道NIM插宽的ADC和四道NIM插宽的主机组成,它除了具备一般多道分析器功能外,还专门设计了双路、四路多定标功能。它的取样时间、单,双路控制均由多道的面板旋钮及拨轮控制。

关键词：多道分析器多定标丰度监测微机

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Dynamics Research on Driving Shaft of Heavy Load Multi-Body System

Dynamics Research on Driving Shaft of Heavy Load Multi-Body ...

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2011工程机械与车辆工程新进展国际学术会议

作者： zhao Xueli~* zhao keli Li Guangzhi Shi Zhen School of Mechanical Engineering Jilin University Changchun 130022 China

＜正＞Through working principle analysis of the large travelling mechanism of crawler mining excavator,the virtual prototype model of the travelling mechanism of crawler is built by ADAMS on the basis of virtual prototype technology. The dynamic analysis of the driving shaft is performed in travelling mechanism of crawler,and its force curve in a typical condition is also *** to the curve,the rigid driving shaft is transferred to be flexible and the intensity analysis of the flexible shaft is performed.

关键词： Travelling mechanism of excavators Driving shaft Virtual prototype Rigid-flexible coupling

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石墨烯材料生物降解的策略研究

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化学学报 2018年第3期76卷 168-176页

作者：赵克丽郝莹朱墨程国胜中国科学院纳米-生物界面重点实验室中国科学院苏州纳米技术与纳米仿生研究所上海大学化学系中国科学院大学

自2004年被发现以来,前沿新材料石墨烯及其衍生物由于其独特的电学、光学和力学性能被广泛关注,在许多领域都展露了光彩,包括新型电池、传感器、新能源和生物医学等领域,尤其在生物医药领域发展迅速.石墨烯及其衍生物良好的生物相容性... 详细信息

自2004年被发现以来,前沿新材料石墨烯及其衍生物由于其独特的电学、光学和力学性能被广泛关注,在许多领域都展露了光彩,包括新型电池、传感器、新能源和生物医学等领域,尤其在生物医药领域发展迅速.石墨烯及其衍生物良好的生物相容性使其在生物领域中具有重要的应用前景.为了实现石墨烯材料的体内应用,材料的可降解性是值得深入研究的焦点,研究其生物降解行为有助于提高其对环境、生命系统的安全性.到目前为止,石墨烯的生物降解研究主要集中在材料的生物酶促降解,利用一系列方法如异质原子掺杂、表面功能化修饰等对石墨烯材料进行改性,可以调控石墨烯材料的降解.综述了近年来石墨烯材料及其衍生物在生物应用上的降解的研究进展,重点介绍石墨烯的酶促降解和其在生物医学领域的应用前景,为进一步促进石墨烯材料的体内研究提供重要的研究基础和指导意义.

关键词：石墨烯生物相容性酶降解表面修饰

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Direct electrochemistry of horseradish peroxidase based on calcium phosphate with hierarchical porous structure

Direct electrochemistry of horseradish peroxidase based on c...

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第八届全国化学生物学学术会议

作者： Jing Longyun Cai Lijuan Gu Saixi Xu Qin zhao keli He Zhen Xiaoya Hu College of Chemistry and Chemical Engineering Yangzhou University

＜正＞Biomorphic calcium phosphate（CaP）nanostructures with hierarchical porous structure were successfully synthesized using natural porous cole pollen grains as templates and are further employed for horseradish pe... 详细信息

关键词： calcium phosphate porous direct electrochemistry biosensor

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