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镉对广蜜二号南瓜幼苗生长与镉累积特性的影响

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中国瓜菜 2024年第5期37卷 90-97页

作者：孟琦涛徐颖超朱吉童曾霖根傅曼琴聂呈荣钟玉娟佛山科学技术学院食品科学与工程学院广东佛山528231 广东省蔬菜新技术研究重点实验室·广东省农业科学院蔬菜研究所广州510640 农业农村部功能食品重点实验室·广东省农产品加工重点实验室·广东省农业科学院蚕业与农产品加工研究所广州510610

镉(Cd)是一种毒性强且分布广的重金属污染物,不仅影响植物生长发育,而且危害人类健康。为了更好地了解Cd在南瓜中的迁移规律,深入探究Cd对植物的毒害机制和植物的防御反应,将广蜜二号南瓜在4种不同质量浓度(1.3、5、7 mg·L^(-1.)的Cd ... 详细信息

镉(Cd)是一种毒性强且分布广的重金属污染物,不仅影响植物生长发育,而且危害人类健康。为了更好地了解Cd在南瓜中的迁移规律,深入探究Cd对植物的毒害机制和植物的防御反应,将广蜜二号南瓜在4种不同质量浓度(1.3、5、7 mg·L^(-1.)的Cd SO_(4)·8H_(2)O溶液中培养28 d,对其生长指标、抗氧化酶活性、Cd吸收转运等特征进行分析。结果表明,随着Cd质量浓度升高,Cd积累量表现为根部高于茎和叶,Cd胁迫提高了广蜜二号南瓜幼苗叶片的超氧化物歧化酶、过氧化物酶、过氧化氢酶活性及丙二醛含量。当溶液中Cd质量浓度较低(1.mg·L^(-1.)时,Cd对广蜜二号南瓜幼苗生长无抑制作用,而当溶液中Cd质量浓度≥3 mg·L^(-1.时,对南瓜幼苗的生长抑制程度加重。

关键词：广蜜二号镉幼苗生长生理特性

CircPlant:An Integrated Tool for circRNA Detection and Functional Prediction in Plants

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Genomics, Proteomics & Bioinformatics 2020年第3期18卷 352-358页

作者： Peijing Zhang Yongjing Liu Hongjun Chen Xianwen Meng jitong Xue Kunsong Chen Ming Chen Department of Bioinformatics State Key Laboratory of Plant Physiology and BiochemistryCollege of Life SciencesZhejiang UniversityHangzhou 310058China James D.Watson Institute of Genome Sciences Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology Zhejiang UniversityHangzhou 310058China The State Agriculture Ministry Laboratory of Horticultural Plant Growth Development and Quality ImprovementZhejiang UniversityHangzhou 310058China Zhejiang Laboratory for Systems&Precision Medicine Zhejiang University Medical CenterHangzhou 311121China The State Key Laboratory of Crop Biology Shandong Key College of AgronomyShandong Agricultural UniversityTai’an 271018China

The recent discovery of circular RNAs(circRNAs)and characterization of their functional roles have opened a new avenue for understanding the biology of *** RNAs have been implicated to play important roles in a variety of biological processes,but their precise functions remain largely ***,a few approaches are available for novel circRNA prediction,but almost all these methods are intended for animal *** that the major differences between the organization of plant and mammal genomes cannot be neglected,a plant-specific method is needed to enhance the validity of plant circ RNA *** this study,we present Circ Plant,an integrated tool for the exploration of plant circRNAs,potentially acting as competing endogenous RNAs(ceRNAs),and their potential *** the incorporation of several unique plant-specific criteria,Circ Plant can accurately detect plant circRNAs from high-throughput RNA-seq *** on comparison tests on simulated and real RNA-seq datasets from Arabidopsis thaliana and Oryza sativa,we show that Circ Plant outperforms all evaluated competing tools in both accuracy and *** Plant is freely available at http://***/circplant.

关键词： Circular RNA Plant MicroRNA RNA-seq Identification

In situ observation of electrochemical Ostwald ripening during sodium deposition

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Nano Research 2022年第3期15卷 2650-2654页

作者： Lin Geng Qiunan Liu Jingzhao Chen Peng Jia Hongjun Ye jitong Yan Liqiang Zhang Yongfu Tang Jianyu Huang Clean Nano Energy Center State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtan 411105China Hebei Key Laboratory of Applied Chemistry College of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

Sodium(Na)metal batteries(SMBs)using Na anode are potential“beyond lithium”electrochemical technology for future energy storage ***,uncontrollable Na dendrite growth has plagued the application of *** Na deposition mechanisms,particularly the early stage of Na deposition kinetics,is critical to enable the *** this context,we conducted in situ observations of the early stage of electrochemical Na *** revealed an important electrochemical Ostwald ripening(EOR)phenomenon which dictated the early stage of Na ***,small Na nanocrystals were nucleated randomly,which then *** growth,smaller Na nanocrystals were contained by bigger ones via *** observed two types of EOR with one involving only electrochemical reaction driven by electrochemical potential difference between bigger and smaller nanocrystals;while the other being dominated by mass transport governed by surface energy *** results provide new understanding to the Na deposition mechanism,which may be useful for the development of SMB for energy storage applications.

关键词： in situ Na deposition electrochemical Ostwald ripening(EOR) Na nanocrystals

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基于局域网的智能访客管理系统的研究

绿色建造与智能建筑 2024年第3期 92-95页

作者：谢吉通张岚周俊波周雷鸣战略支援部队航天系统部后勤部工程代建管理办公室北京102499

本文主要解决部分企事业单位因网络安全问题,仍在采用传统访客管理方式时存在的登记效率低、信息存储难、访客去向难掌握、滞留访客人数不清、数据可追溯性差、访客体验差等问题。本文提出了基于局域网系统,依托数字安防系统的智能访客... 详细信息

本文主要解决部分企事业单位因网络安全问题,仍在采用传统访客管理方式时存在的登记效率低、信息存储难、访客去向难掌握、滞留访客人数不清、数据可追溯性差、访客体验差等问题。本文提出了基于局域网系统,依托数字安防系统的智能访客管理系统,按照分层架构设计,并针对性地设置预约访问模式和临时访问模式,有效解决传统访客管理模式的痛点问题。

关键词：预约访客临时访客访客管理系统

Chemical looping conversion of methane via Fe_(2)O_(3)-LaFeO_(3)calcined from LaFe-MOF precursor

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Chinese Journal of Chemical Engineering 2023年第10期62卷 225-237页

作者： jitong Deng Yongjun Zhang Xiaopeng Wang Wei Zhang Hongjing Han Haiying Wang Huimin Yuan Yanan Zhang Yanguang Chen College of Chemistry&Chemical Engineering Northeast Petroleum UniversityDaqing 163318China PetroChina Daqing Petrochemical Research Center Daqing 163714China CNPC Safety and Environmental Technology Research Institute Co.LTD. Beijing 102206China

The effective utilization of natural gas resources is a promising option for the implementation of the"dual carbon"***,the capture of carbon dioxide with relatively lower concentration after the combustion of natural gas is the crucial ***,the lattice oxygen is used for chemical cycle conversion of methane to overcome the shortcomings mentioned above.A method was proposed to synthesize perovskite for methane cycle conversion using metal organic framework as a *** and pore structure of Fe_(2)O_(3)-LaFeO_(3)composite oxides were regulated by precursor synthesis conditions and calcination ***,the chemical looping conversion performance of methane was *** results showed that the pure phase precursor of La[Fe(CN)_(6)]·5H_(2)O was synthesized with the specific surface area of 23.91.m^(2)·g^(-1.under the crystallization of 1. h and the pH value ***_(2)O_(3)-LaFeO_(3)was obtained by controlled calcination of La[Fe(CN)_(6)]·5H_(2)O and Fe_(2)O_(3)with variable mass *** selectivity of CO_(2)can reach more than 99%under the optimal parameters of methane chemical looping conversion:m(Fe_(2)O_(3)):m(LaFeO_(3))=2:1.the reaction temperature is 900℃,the lattice oxygen conversion is less than 40%.Fe_(2)O_(3)-LaFeO_(3)still has good phase and structure stability after five redox reaction and regeneration cycles.

关键词： Composite Chemical looping conversion Carbon dioxide Metal organic frameworks Lattice oxygen Methane

钢丝绳-聚合物砂浆面层竖向-交叉条带加固砌体墙拟静力试验研究

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四川建筑科学研究 2024年第3期50卷 46-56页

作者：秦增超蒋济同傅与天高之皓周献祥中国海洋大学工程学院山东青岛266404 中国人民解放军军事科学院国防工程研究院北京100850

课题组前期试验结果表明,钢丝绳-聚合物砂浆面层交叉条带加固可以提高砌体墙的抗剪承载力,但对于抑制砌体墙尤其是高宽比大于1.5的砌体墙受弯破坏和弯剪破坏的效果不够理想。为进一步研究条带法对加固砌体墙抗震性能的影响,设计制作了1...

课题组前期试验结果表明,钢丝绳-聚合物砂浆面层交叉条带加固可以提高砌体墙的抗剪承载力,但对于抑制砌体墙尤其是高宽比大于1.5的砌体墙受弯破坏和弯剪破坏的效果不够理想。为进一步研究条带法对加固砌体墙抗震性能的影响,设计制作了1.未加固墙、2面交叉条带加固墙和2面竖向-交叉条带加固墙试件,并进行了拟静力试验。结果表明:交叉条带可提高墙体各阶段荷载,但对高窄墙试件受弯破坏和弯剪破坏的抑制效果不明显;竖向条带可显著降低宏观弯矩对墙体的影响,对高窄墙试件的作用尤为明显,与没有竖向条带的高窄墙试件相比,经竖向条带加固后的高窄墙试件各阶段荷载均有显著提高,滞回曲线更加饱满,耗能能力和延性性能更好。分析了组合墙体的破坏机理,推导了组合墙体的抗弯承载力计算公式和抗剪承载力计算公式,并通过试验数据拟合得到了组合墙体抗剪承载力计算公式的参数。

关键词：竖向条带交叉条带砌体墙加固拟静力试验抗剪承载力

TRPC6变异致激素耐药型肾病综合征4例患儿的基因型和表型谱扩展及治疗分析

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中华医学遗传学杂志 2024年第4期41卷 473-479页

作者：赵公平李纪同刘玉洁李广波张艳敏张书锋刘翠华郑州大学附属儿童医院、河南省儿童医院、郑州儿童医院肾脏风湿科、郑州市儿童肾脏病研究重点实验室郑州450018 河南省儿童遗传代谢性疾病重点实验室郑州450018

目的总结4例TRPC6基因变异致激素耐药型肾病综合征(SRNS)患儿的临床特征、遗传学特点、治疗及预后。方法收集2020年5月至2022年8月于郑州大学附属儿童医院肾脏风湿科住院的4例SRNS患儿的临床资料。提取4例患儿及其父母外周血DNA,对患儿... 详细信息

目的总结4例TRPC6基因变异致激素耐药型肾病综合征(SRNS)患儿的临床特征、遗传学特点、治疗及预后。方法收集2020年5月至2022年8月于郑州大学附属儿童医院肾脏风湿科住院的4例SRNS患儿的临床资料。提取4例患儿及其父母外周血DNA,对患儿进行全外显子组基因测序,应用Sanger测序对患儿及其父母进行变异位点验证及致病性分析。结果4例患儿携带的TRPC6基因变异分别为:c.523C>T(p.R1.5W)、c.1.27T>A(p.F443I)、c.430G>C(p.E1.4Q)(国内外均未见报道)、c.523C>T(p.R1.5W),均为错义变异。4例SRNS患儿中,2例表现为单纯型,2例为肾炎型,均无肾外表型,其中3例患儿完善肾脏病理均为局灶节段性肾小球硬化(FSGS)。2例患儿进行了激素联合钙调磷酸酶抑制剂(CNIs)治疗,其中1.症状明显改善。结论TRPC6基因c.430G>C变异为新变异位点,c.1.27T>A变异可能会导致SRNS新表型,扩展了该基因的变异谱和表型谱,为该病患儿临床诊断与遗传咨询提供参考依据。

关键词： TRPC6基因肾病综合征激素耐药儿童

All-conjugated amphiphilic diblock copolymers for improving morphology and thermal stability of polymer/nanocrystals hybrid solar cells

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Frontiers of Materials Science 2018年第3期12卷 225-238页

作者： Zhenrong JIA Xuefeng XIA Xiaofeng WANG Tengyi WANG Guiying XU Bei LIU jitong ZHOU Fan LI Department of Materials Science and Engineering Nanchang University 999 Xuefu Avenue Nanchang 330031 China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Herein, the ability to optimize the morphology and photovoltaic performance of poly（3-hexylthiophene）（P3HT）/ZnO hybrid bulk-heterojunction solar cells via introducing all-conjugated amphiphilic P3HT-based block copolymer （BCP）, poly（3- hexylthiophene）-block-poly（3-triethylene glycol-thiophene）（P3HT-b-P3TEGT）, as polymeric additives is demonstrated. The results show that the addition of P3HT-b-P3TEGT additives can effectively improve the compatibility between P3HT and ZnO nanocrystals, increase the crystalline and ordered packing of P3HT chains, and form optimized hybrid nanomorphology with stable and intimate hybrid interface. The improvement is ascribed to the P3HT-b-P3TEGT at the P3HT/ZnO interface that has strong coordination interactions between the TEG side chains and the polar surface of ZnO nanoparticles. All of these are favor of the efficient exciton dissociation, charge separation and transport, thereby, contributing to the improvement of the efficiency and thermal stability of solar cells. These observations indicate that introducing all-conjugated amphiphilic BCP additives can be a promising and effective protocol for high-performance hybrid solar cells.

关键词： hybrid solar cell P3HT ZnO all-conjugated amphiphilic block copolymer additive

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密封垫片在船舶通风系统中的应用

广东造船 2024年第3期43卷 56-58,38页

作者：刘富均王冬梅赵庆春余丹檀季彤中船黄埔文冲船舶有限公司广州511462

本文从密封垫片的材料、标准、适用范围及应用注意事项等方面,介绍了几种常用的船用密封垫片;并详细解析了规范对船舶通风系统中密封垫片的要求及各类密封垫片在船舶通风系统中的应用,可为其他项目提供参考。

关键词：密封垫片通风系统