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科教导刊 2024年第4期 135-138页

作者：季梦雨吉林师范大学吉林四平136000

目的:探究大学生成人依恋、心理弹性与自我分化的关系。方法:本研究采用亲密关系经历量表、青少年心理韧性量表和大学生自我分化量表,对随机抽取的433名大学生进行调查。结果:依恋回避与心理弹性、自我分化均呈现显著的负相关,依恋焦虑... 详细信息

目的:探究大学生成人依恋、心理弹性与自我分化的关系。方法:本研究采用亲密关系经历量表、青少年心理韧性量表和大学生自我分化量表,对随机抽取的433名大学生进行调查。结果:依恋回避与心理弹性、自我分化均呈现显著的负相关,依恋焦虑与心理弹性、自我分化均呈现显著负相关,心理弹性与自我分化呈现显著正相关。依恋回避、依恋焦虑不仅能直接预测自我分化,还能通过心理弹性的中介作用,间接预测自我分化。结论:大学生成人依恋、心理弹性和自我分化两两之间具有明显的相关关系,心理弹性在成人依恋和自我分化之间具有部分中介作用。

关键词：大学生成人依恋心理弹性自我分化

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DNDC模型在稻田水肥管理中的应用研究进展

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生态学杂志 2024年第7期43卷 2198-2207页

作者：万佳静景元书吉梦宇孙琪娜南京信息工程大学应用气象学院/气象灾害预报预警与评估协同创新中心南京210044 江苏省农业气象重点实验室南京210044

稻田生态系统是重要的碳库,它具有碳源和碳汇双重功能。充分发挥稻田碳汇功能对推进低碳绿色农业生产方式和保障农业可持续发展具有重要意义。稻田水肥管理模式很大程度上影响了温室气体的排放和稻田碳固存能力。本文综述了近年来DNDC... 详细信息

稻田生态系统是重要的碳库,它具有碳源和碳汇双重功能。充分发挥稻田碳汇功能对推进低碳绿色农业生产方式和保障农业可持续发展具有重要意义。稻田水肥管理模式很大程度上影响了温室气体的排放和稻田碳固存能力。本文综述了近年来DNDC模型在稻田水肥管理中的应用研究进展。从稻田生态系统固碳减排角度出发,总结了稻田水肥管理措施对温室气体CH4和N2 O排放、土壤碳库和作物生产固碳的影响,评价了不同稻田轮作模式的固碳减排效应,并展望了DNDC模型在未来稻田生态系统的应用前景。研究结果将为未来稻作生产固碳减排,实现农业生产可持续发展提供理论参考。

关键词：生物地球化学模型农田固碳减排敏感性分析

基于K近邻算法的平面结构变形场实时测量方法

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应用科技 2023年第2期50卷 93-99页

作者：孙立东吉孟宇上海机电工程研究所上海201109 哈尔滨工业大学机器人技术与系统国家重点实验室黑龙江哈尔滨150001 哈尔滨工业大学机电工程学院黑龙江哈尔滨150001

针对行骨架结构式天线背架变形场难以监测的问题,提出一种基于K近邻算法的平面结构变形场实时测量方法。针对被测结构在实际使用工况下的典型受力状态,对结构施加负载,采集变形数据,制作预标定数据集,获取被测结构的实时应力应变数据。... 详细信息

针对行骨架结构式天线背架变形场难以监测的问题,提出一种基于K近邻算法的平面结构变形场实时测量方法。针对被测结构在实际使用工况下的典型受力状态,对结构施加负载,采集变形数据,制作预标定数据集,获取被测结构的实时应力应变数据。将实时获取的一组应力应变数据与预标定数据集各组数据进行相似度计算、排序,依据相似度系数矩阵和所选取的预标定数据,对当前受力状态下的监测点变形位移数据进行计算;根据行骨架和主背架的受力特点,对整个阵面变形场进行插值计算,拟合出被监测天线阵面的变形场数据。为了验证所提方法的有效性,本文在一种行骨架式非闭合平面结构上开展实验研究。结果表明,所提算法能够测量非规则结构在外力作用下的变形场,并具备一定精度。

关键词：行骨架结构变形场测量 K近邻算法应力–应变场预标定数据集相似度排序插值计算受力分析

同方期刊数据库博看期刊

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一种有效的静态缺陷函数检测框架

指挥信息系统与技术 2010年第6期1卷 15-19,78页

作者：黄松嵇孟雨惠战伟葛研全军军事训练软件测评中心南京210007 解放军理工大学工程兵工程学院南京210007 解放军理工大学指挥自动化学院南京210007 济南军区山东省军区后勤部济南250013

基于在软件开发过程中有很多静态缺陷函数检测方法与工具都具有局限性,且对软件开发后期的黑盒测试关联不大,文中提出了一种在软件开发早期运用的静态缺陷函数检测框架,该框架不仅可以解决静态分析工具误报的问题,还可以为后期的安全性... 详细信息

基于在软件开发过程中有很多静态缺陷函数检测方法与工具都具有局限性,且对软件开发后期的黑盒测试关联不大,文中提出了一种在软件开发早期运用的静态缺陷函数检测框架,该框架不仅可以解决静态分析工具误报的问题,还可以为后期的安全性黑盒测试提供数据流约束,为自动生成数据流提供有效支持。

关键词：静态分析软件缺陷检测软件缺陷验证软件测试

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保山烟区降水及其干旱风险性评价区划

中国农学通报 2024年第11期40卷 112-120页

作者：钟燕华景元书魏远李维韬吉梦宇气象灾害预报预警与评估协同创新中心/南京信息工程大学应用气象学院南京210044 南京信息工程大学自动化学院南京210044 保山市气象局云南保山678000

以保山各县区2015—2020年11个烤烟气象站点的逐日降水量和气温数据为基础资料,对云南保山烤烟生长发育过程中降雨风险指标及其时空分布特征进行分析,并构建干旱危险性评价模型,旨在为保山烤烟安全生产及风险防范策略制定提供依据。结... 详细信息

以保山各县区2015—2020年11个烤烟气象站点的逐日降水量和气温数据为基础资料,对云南保山烤烟生长发育过程中降雨风险指标及其时空分布特征进行分析,并构建干旱危险性评价模型,旨在为保山烤烟安全生产及风险防范策略制定提供依据。结合地理信息系统软件ArcGis和气候倾向率、趋势系数等相关数理统计方法分析保山烟区降水和干旱风险的时空分布特征。采用层次分析法和干旱危险性评价模型,借助GIS平台实现保山烟区的干旱灾害危险性评价区划。结果表明:洪涝高风险地区主要集中在保山西部的龙陵和腾冲地区,龙陵年降水量在1060~1865.6 mm,腾冲年降水量在804~1348.5 mm,均大于烤烟正常需水量的2倍,其中腾冲猴桥地区气候倾向率最大,通过了0.01显著性检验,逐年上升趋势十分显著。烤烟旺长期干旱风险主要发生在保山中部和东部。施甸旧城和隆阳区附近的干旱风险最高,达到严重风险以上;保山中部和东部大部分地区干旱危险性风险都在中等风险以下,利于烤烟种植。本文研究阐明了保山烟区的水分气候条件对烤烟种植的重要影响,有利于保山地区烤烟优质生产及当地政府气象防灾减灾策略制定。

关键词：保山烤烟降雨干旱风险性区划评价

Characteristics of lymph node stations/basins metastasis and construction and validation of a preoperative combination prediction model that accurately excludes lymph node metastasis in early gastric cancer

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Chinese Journal of Cancer Research 2022年第5期34卷 519-532页

作者： mengyu Feng jingtao Wei Ke ji Yinan Zhang Heli Yang Xiaojiang Wu ji Zhang Zhaode Bu jiafu ji Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Center of Gastrointestinal CancerPeking University Cancer Hospital&InstituteBeijing 100142China

Objective:To explore the candidate indications for function-preserving curative gastrectomy and sentinel lymph node navigation surgery in early gastric cancer(EGC).Methods:The clinicopathological data of 561 patients with EGC who underwent radical gastrectomy for gastric cancer at Peking University Cancer Hospital from November 2010 to November 2020 with postoperative pathological stage pT1 and complete examination data,were ***’s Chi-square test was used and binary logistic regression was employed for univariate and multivariate *** analysis of multiple risk and protective factors for lymph node metastasis(LNM)of EGC was performed.A negative predictive value(NPV)combination model was built and ***:LNM occurred in 85 of 561 patients with EGC,and the LNM rate was 15.15%.NPV for LNM reached 100%based on three characteristics,including ulcer-free,moderately well differentiation and patient2 cm was significantly greater than that noted in patients with a maximum tumor diameter≤2 cm(60.78%vs.28.13%,P<0.05).Conclusions:Characteristics of lymph node stations/basins metastasis will facilitate precise lymph node *** NPV for LNM reaches 100%based on the following two conditions:young and middle-aged EGC patients,well-differentiated tumors,and without ulcers;or well-differentiated tumors,without ulcers,and tumors located in the proximal *** findings can be used as the recommended indications for functionpreserving curative gastrectomy and sentinel lymph node navigation surgery.

关键词： Early gastric cancer lymph node metastasis lymphatic basin negative predictive value function-preserving curative gastrectomy with lymphatic basin dissection

Analyses of functional conservation and divergence reveal requirement of b HLH010/089/091 for pollen development at elevated temperature in Arabidopsis

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Journal of Genetics and Genomics 2020年第8期47卷 477-492页

作者： Ying Fu mengyu Li Shiting Zhang Qi Yang Engao Zhu Chenjiang You ji Qi Hong Ma Fang Chang State Key Laboratory of Genetic Engineering Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering and Institute of Biodiversity SciencesInstitute of Plant BiologySchool of Life SciencesFudan UniversityShanghai200438China Department of Biology The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkPA16802USA

The Arabidopsis b HLH010/089/091(basic helix-loop-helix)genes are functionally redundant and are required for both anther development and normal expression of DYT1-activated anther-related *** three genes are conserved in Brassicaceae,suggesting that each of them is under selection pressure;however,little is known about the possible functional differences among these b HLH genes and between the b HLH and DYT1 ***,we compared novel anther transcriptomic data sets from b HLH010/089/091 single and double mutants,with an anther transcriptomic data set from the wild type(WT)and a previously obtained anther transcriptomic data set from the bhlh010 bhlh089 bhlh091 triple *** results revealed molecular phenotypes that support the functional redundancy and divergence of b HLH010,b HLH089,and b HLH091,as well as the functional overlap and difference between them and ***-binding analyses revealed that DYT1 and b HLH089 specifically recognize the TCATGTGC box to activate the expression of target genes,including ATA20,EXL4,and *** addition,among genes whose expression was affected in the bhlh010 bhlh089 double and bhlh010 bhlh089 bhlh091 triple mutants,genes that are involved in the stress response and cell signaling were enriched,which included256 genes whose expression was preferentially induced by heat during early flower ***,the bhlh double mutants exhibited defective pollen development when the plants were grown under elevated temperature,suggesting that b HLH genes are important for anther gene expression under such *** results are consistent with the observation that the heat-induced expression of several genes is less in the bhlh mutants than that in the ***,our results provide important insights into the molecular mechanism underlying the activation of direct targets by DYT1-b HLH089 heterodimers and demonstrate the protective roles of b HLH010/089/091 in maintaining fertility upon heat stress.

关键词： DYT1 bHLH010/089/091 Male fertility Molecular phenotype Transcriptional activation Heat response

Improved osteointegration and angiogenesis of strontium-incorporated 3D-printed tantalum scaffold via bioinspired polydopamine coating

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Journal of Materials Science & Technology 2021年第10期69卷 106-118页

作者： Shi Cheng jin Ke mengyu Yao Hongwei Shao jielong Zhou Ming Wang Xiongfa ji Guoqing Zhong Feng Peng Limin Ma Yu Zhang Department of Orthopedics Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhou 510080China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510515China

Tantalum(Ta)is used in orthopedic implants because it has excellent ***,high elastic modulus,bio-inertness,and unsatisfactory osteointegration limits its wider use in clinical ***,a 3 D porous Ta scaffold with low elastic modulus was fabricated using selective laser melting(SLM).Strontium(Sr)was incorporated on the surface of the scaffold with the aid of polydopamine(PDA)to further improve its osteointegration *** prepared scaffolds exhibited a stable Sr ion release in 14 *** bone marrow stem cells(BMSCs)showed improved early adhesion and spreading after Sr was incorporated on the porous Ta *** osteogenic behavior,including extracellular matrix mineralization(ECM),alkaline phosphatase activity(ALP),and expression of bone-related RNA,were all ***,the Sr-incorporated porous Ta scaffolds exhibited better angiogenic behavior,such as promoting migration,tube formation,and angiogenesis-related RNA expression abilities of human vascular endothelial cells(HUVECs).Additionally,histological images(H&E,Masson and CD31 immunofluorescent staining)suggested that Sr-incorporated porous Ta scaffolds displayed enhanced osteointegration and angiogenesis after implantation in rat femur for 12 *** findings prove that the PDA-based Sr-incorporated porous Ta scaffolds show promising use in orthopedic implants.

关键词： 3D Ta scaffold Strontium Osteogenesis Angiogenesis Orthopedic implant

Estimation of PM2.5 Mass Concentration from Visibility

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Advances in Atmospheric Sciences 2020年第7期37卷 671-678页

作者： Denghui ji Zhaoze DENG Xiaoyu SUN Liang RAN Xiangao XIA Disong FU Zijue SONG Pucai WANG Yunfei WU Ping TIAN mengyu HUANG Key Laboratory of Middle Atmosphere and Global environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Regional Climate-Environment for Temperate East Asia(RCE-TEA) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Beijing Weather Modification Office Beijing 100089China Xianghe Observatory of Whole Atmosphere Institute of Atmospheric PhysicsChinese Academy of SciencesXianghe 065400China University of Chinese Academy of Sciences Beijing 100049China

Aerosols in the atmosphere not only degrade visibility,but are also detrimental to human health and *** order to develop a method to estimate PM2.5 mass concentration from the widely measured visibility,a field campaign was conducted in Southwest China in January ***,ambient relative humidity(RH),PM2.5 mass concentrations and scattering coefficients of dry particles were *** the campaign,two pollution episodes,i.e.,from 4-9 January and from 10-16 January,were *** of the two episodes could be divided into two *** aerosol hygroscopicity was found during the first period,when RH was higher than 80%at most of the time,and sometimes even approached 100%.The second period experienced a relatively dry but more polluted condition and aerosol hygroscopicity was lower than that during the first *** empirical relationship between PM2.5 mass concentration and visibility(ambient aerosol extinction)under different RH conditions could thus be *** on the empirical relationship,PM2.5 mass concentration could be well estimated from visibility and *** method will be useful for remote sensing of PM2.5 mass concentration.

关键词： concentration. pollution visibility