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中国城市住宅售租比时空分异格局及影响机制

长江流域资源与环境 2020年第3期29卷 547-556页

作者：尹上岗马志飞吴小影李在军南京师范大学地理科学学院江苏南京210023 江苏省地理信息资源开发与利用协同创新中心江苏南京210023 重庆工商大学旅游与国土资源学院重庆400067 扬州大学苏中发展研究院江苏扬州225009

以2.09~2.17年中国336个地级以上城市为基本研究单元,利用空间趋势面和探索性空间回归技术(ESDA)对中国城市住宅售租比的空间分布进行模拟和估计,并利用地理探测器模型从城市的经济因素、人口因素、社会因素和预期因素4大方面探析售租... 详细信息

以2.09~2.17年中国336个地级以上城市为基本研究单元,利用空间趋势面和探索性空间回归技术(ESDA)对中国城市住宅售租比的空间分布进行模拟和估计,并利用地理探测器模型从城市的经济因素、人口因素、社会因素和预期因素4大方面探析售租比时空分异的影响机制。结果表明:中国城市住宅售租比整体呈波动式上升的态势,空间分布呈现出"东高西低"、"东热西冷"的阶梯状格局,且住宅价格、住宅租金和售租比均存在明显的空间正相关性和较强的区域集聚性。收入水平和工资水平是影响售租比最大的因素,住宅预期、人口吸引力、租赁户比重、家庭规模、经济预期等也是影响售租比的重要因素,经济因素、人口因素、预期因素和社会因素的解释力依次减弱,4大因素相互联系、相互作用,形成中国售租比的时空分异格局。

关键词：售租比住宅价格住宅租金时空分异影响机制中国

High-density lipoprotein regulates angiogenesis by long non-coding RNA HDRACA

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Signal Transduction and Targeted Therapy 2023年第9期8卷 4320-4337页

作者： Zhi-Wei Mo Yue-Ming Peng Yi-Xin Zhang Yan li Bi-Ang Kang Ya-Ting Chen Le li {2.ry GSorci-Tho{2.s Yi-Jun lin Yang Cao Si Chen Ze-Long liu Jian-Jun Gao Zhan-Peng Huang Jia-Guo Zhou Mian Wang Guang-Qi Chang Meng-Jie Deng Yu-Jia liu Zhen-Sheng {2. Zuo-Jun Hu Yu-gang Dong Zhi-Jun Ou Jing-Song Ou Division of Cardiac Surgery Cardiovascular Diseases InstituteThe First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases NHC Key Laboratory of Assisted Circulation(Sun Yat-sen University)Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular DiseasesGuangzhouChina Division of Vascular Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Division of Hypertension and Vascular Diseases Department of CardiologyHeart CenterThe First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Medical college of Wisconsin MilwaukeeWIUSA Center for Translational Medicine Institute of Precision MedicineThe First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Cardiology Heart CenterThe First Affiliated HospitalSun Yat-sen UniversityGuangzhouChina Department of Pharmacology Cardiac and Cerebral Vascular Research CenterZhongshan School of Medicine of Sun Yat-sen UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Brain Function and Disease Zhongshan School of MedicineSun Yat-sen UniversityGuangzhou 510080P.R.China

normal high-density lipoprotein(nHDL)can induce angiogenesis in healthy ***,HDL from patients with coronary artery disease undergoes various modifications,becomes dysfunctional(dHDL),and loses its ability to promote ***,we identified a long non-coding RNA,HDRACA,that is involved in the regulation of angiogenesis by *** this study,we showed that nHDL downregulates the expression of HDRACA in endothelial cells by activating WW domain-containing E3 ubiquitin protein ligase 2.which catalyzes the ubiquitination and subsequent degradation of its transcription factor,Kruppel-like factor 5,via sphingosine 1-phosphate(S1P)receptor *** contrast,dHDL with lower levels of S1P than nHDL were much less effective in decreasing the expression of *** was able to bind to Ras-interacting protein 1(RAIN)to hinder the interaction between RAIN and vigilin,which led to an increase in the binding between the vigilin protein and proliferating cell nuclear antigen(PCNA)mRNA,resulting in a decrease in the expression of PCNA and inhibition of *** expression of human HDRACA in a hindlimb ischemia mouse model inhibited the recovery of *** together,these findings suggest that HDRACA is involved in the HDL regulation of angiogenesis,which nHDL inhibits the expression of HDRACA to induce angiogenesis,and that dHDL is much less effective in inhibiting HDRACA expression,which provides an explanation for the decreased ability of dHDL to stimulate angiogenesis.

关键词： angiogenesis lipoprotein inhibited

甘薯块根熟化过程中麦芽糖变化及其影响因素研究进展

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江苏农业学报 2021年第2期37卷 539-544页

作者：李臣后猛马猛张允刚李强江苏徐淮地区徐州农业科学研究所/中国农业科学院甘薯研究所/农业农村部甘薯生物学与遗传育种重点实验室江苏徐州221131 江苏师范大学生命科学学院江苏徐州221116

甘薯是中国重要的杂粮作物,鲜食型甘薯的选育是甘薯育种的重要方向之一,甜度则是鲜食型甘薯选育的重要指标。甘薯熟化后的甜度取决于麦芽糖含量,麦芽糖含量的变化不仅受β-淀粉酶活性的调控,而且受甘薯淀粉糊化特性及熟化方式的影响。... 详细信息

甘薯是中国重要的杂粮作物,鲜食型甘薯的选育是甘薯育种的重要方向之一,甜度则是鲜食型甘薯选育的重要指标。甘薯熟化后的甜度取决于麦芽糖含量,麦芽糖含量的变化不仅受β-淀粉酶活性的调控,而且受甘薯淀粉糊化特性及熟化方式的影响。本文主要阐述甘薯熟化过程中麦芽糖合成相关酶的研究进展,以及淀粉糊化特性和熟化方式对麦芽糖合成的影响,旨在弄清甘薯块根熟化过程中麦芽糖变化的影响因素,为鲜食型甘薯育种提供理论依据。

关键词：甘薯糖类麦芽糖淀粉糊化特性

Anisotropic gapping of topological Weyl rings in the charge-density-wave superconductor In_(x)TaSe_(2.

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Science Bulletin 2021年第3期66卷 243-249,M0004页

作者： Yupeng li Yi Wu Chenchao Xu Ningning liu Jiang {2. Baijiang Lv gang Yao Yan liu Hua Bai Xiaohui Yang Lei Qiao Miaocong li linjun li Hui Xing Yaobo Huang Junzhang {2. Ming Shi Chao Cao Yang liu Canhua liu Jinfeng Jia Zhu-An Xu Zhejiang Province Key Laboratory of Quantum Technology and Device Department of PhysicsZhejiang UniversityHangzhou 310027China Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education) Department of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Shanghai Institute of Applied Physics CASShanghai 201204China Paul Scherrer Institute Swiss Light SourceCH-5232 Villigen PSISwitzerland Department of Physics Hangzhou Normal UniversityHangzhou 310036China Collaborative Innovation Centre of Advanced Microstructures Nanjing UniversityNanjing 210093China

Topological materials and topological phases have recently become a hot topic in condensed matter *** this work,we report an In-intercalated transition-metal dichalcogenide In_(x)TaSe_(2.(named 112.system),a topological nodal-{2.ne semimetal in the prep seffiffinffi ce of both charge density wave(CDW)and *** the x=0.58 sample,the 2.√3 commensurate CDW(CCDW)and the 2.2.CCDW are observed below 116 and 77 K,*** with theoretical calculations,the spin–orbital coup{2.ng gives rise to two twofold-degenerate nodal rings(Weyl rings)connected by drumhead surface states,confirmed by angle-resolved photoemission *** results suggest that the 2.2.CCDW ordering gaps out one Weyl ring in accordance with the CDW band folding,while the other Weyl ring remains gapless with intact surface *** addition,superconductivity emerges at 0.91 K,with the upper critical field deviating from the s-wave behavior at low temperature,implying possibly unconventional ***,we think this type of the 112.system may possess abundant physical states and offer a platform to investigate the interplay between CDW,nontrivial band topology and superconductivity.

关键词： Nodal-line semimetal Charge density wave Superconductivity DFT calculations Weyl rings

高紫外反射ZnO/SiO2.合粉体制备及其热控涂层性能研究

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表面技术 2020年第12期49卷 50-54,198页

作者：王萌雷辉姜舟孙理理马剑钢贺晨李俊峰航天材料及工艺研究所北京100076 东北师范大学长春130024

目的以ZnO/SiO2.合粉体为填料,开展新型热控涂层制备方法研究,提高传统白色热控涂层的紫外反射率,研制出具有太阳全光谱高反射性能的热控涂层。方法以硫酸锌和硅酸钠为原料,采用常温化学合成与高温热处理相结合的方法制备ZnO/SiO2.合... 详细信息

目的以ZnO/SiO2.合粉体为填料,开展新型热控涂层制备方法研究,提高传统白色热控涂层的紫外反射率,研制出具有太阳全光谱高反射性能的热控涂层。方法以硫酸锌和硅酸钠为原料,采用常温化学合成与高温热处理相结合的方法制备ZnO/SiO2.合粉体,通过X射线衍射仪、扫描电子显微镜及紫外可见分光光度计等仪器,对复合粉体的微观结构及光学性能进行表征。然后以ZnO/SiO2.合粉体为填料,以无机硅酸钾为粘结剂,制备了ZnO/SiO2.控涂料,通过不同颜基比和厚度的优化,得到了太阳全光谱(2.0~2.00 nm)高反射白色热控涂层的制备方法。结果研制的ZnO/SiO2.合粉体在紫外波段的反射率均大于88%,与传统ZnO粉体相比具有明显提升。当以无机硅酸钾为粘结剂、颜基比为2.1、喷涂厚度为100~140μm时,所制备涂层在太阳全光谱呈现高反射特性,此时涂层的太阳吸收比为0.12.红外发射率为0.92.结论ZnO/SiO2.控涂层具有优异的热控性能,与传统白色热控涂层相比具有更低的吸收比,同时在太阳全光谱具有高反射特性,可以满足新一代大功率卫星长寿命和高效散热的技术需求。

关键词： ZnO/SiO2 热控涂层高反射太阳光谱太阳吸收比红外发射率

上甸子区域大气本底站NO 2.浓度光谱反演及其变化特征

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光谱学与光谱分析 2018年第11期38卷 3470-3475页

作者：程巳阳马建中周怀刚靳军莉刘岩董璠周礼岩颜鹏灾害天气国家重点实验室和中国气象局大气化学重点开放实验室中国气象科学研究院北京100081 北京市气象局上甸子区域大气本底站北京101507 中国气象局气象探测中心北京100081 新疆师范大学地理科学与旅游学院新疆乌鲁木齐830054

为了探究京津冀本底浓度地区NO_2.这一重要空气污染物的变化特征,采用多轴差分吸收光谱技术(maX-DOAS)在上甸子区域大气本底站开展了太阳散射光谱观测以及NO_2.柱浓度反演研究。在NO_2.的405～430nm特征谱段进行了定量光谱解析,并通过... 详细信息

为了探究京津冀本底浓度地区NO_2.这一重要空气污染物的变化特征,采用多轴差分吸收光谱技术(maX-DOAS)在上甸子区域大气本底站开展了太阳散射光谱观测以及NO_2.柱浓度反演研究。在NO_2.的405～430nm特征谱段进行了定量光谱解析,并通过几何近似法计算了2.09年7～9月NO_2.对流层垂直柱浓度(VCD_(trop))。观测期间NO_2.VCD_(trop)平均值和最大值分别为5.43×10^(15)和7.15×10^(16) molec·cm^(-2.。NO_2.VCD_(trop)日均值浓度水平较低,但总体上有上升趋势。NO_2.VCD_(trop)变化过程与风速风向关系密切:西南风时风速越小NO_2.VCD_(trop)越低,东北风对NO_2.VCD_(trop)有扩散稀释作用。NO_2.VCD_(trop)日变化形态总体上呈现为中午时段低、早晚较高的特征,并且傍晚峰值比早间峰值略高。上甸子站NO_2.VCD_(trop)浓度水平和日变化幅度相比北京城区同期观测结果明显偏小。NO_2.VCD_(trop)变化特征与河北香河和固城等污染相对较轻站点观测到的变化特征相一致。总之,maX-DOAS能够有效监测区域本底大气的NO_2.VCD_(trop),其变化特征与工业和交通排放、大气光化学过程、大气传输等复杂因素有关,还需积累更多数据和深入研究。

关键词：多轴差分吸收光谱技术二氧化氮柱浓度区域大气本底站

基于点云精简的奶牛背部体尺测点自动提取方法

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农业机械学报 2019年第B7期50卷 267-275页

作者：张馨月刘刚经玲司永胜任晓惠马丽中国农业大学现代精细农业系统集成研究教育部重点实验室北京100083 中国农业大学农业农村部农业信息获取技术重点实验室北京100083 中国农业大学理学院北京100083 河北农业大学信息科学与技术学院保定071001

为了解决奶牛点云体尺测点的自动提取问题,提出了基于点云精简的奶牛背部体尺测点自动提取方法。首先,搭建奶牛深度视频采集平台采集数据,对Kinect相机采集到的奶牛背部原始点云数据进行预处理,去除周围复杂背景;其次,采用主成分分析法... 详细信息

为了解决奶牛点云体尺测点的自动提取问题,提出了基于点云精简的奶牛背部体尺测点自动提取方法。首先,搭建奶牛深度视频采集平台采集数据,对Kinect相机采集到的奶牛背部原始点云数据进行预处理,去除周围复杂背景;其次,采用主成分分析法计算局部平面法矢量和曲率,对奶牛背部点云进行精简,去除噪声点和冗余点,保留奶牛背脊部和边界轮廓的特征点;最后,根据奶牛背部体尺测点的几何特征和测点间的空间结构关系,对精简后的奶牛背部点云数据进行体尺测点的自动提取。采集了33头奶牛的完整背部深度视频数据,每头奶牛选取10帧,共计330帧试验数据。利用本文方法提取到的所有体尺测点的平均绝对误差均小于1.17cm,与非均匀网络法相比,经本文方法处理后的体尺测点提取时间缩短了33.72.。本文研究结果可为奶牛体尺自动化测量提供技术支持。

关键词：奶牛测点提取体尺 Kinect 点云精简

Significant loss of soil inorganic carbon at the continental scale

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National Science Review 2022年第2期9卷 13-20页

作者： Xiao-Dong Song Fei Yang Hua-Yong Wu Jing Zhang De-Cheng li Feng liu Yu-Guo Zhao Jin-ling Yang Bing Ju Chong-Fa Cai Biao Huang Huai-Yu Long Ying Lu Yue-Yu Sui Qiu-Bing Wang Ke-Ning Wu Feng-Rong Zhang Ming-Kui Zhang Zhou Shi Wan-Zhu ma gang Xin Zhi-Ping Qi Qing-Rui Chang En Ci Da-gang Yuan Yang-Zhu Zhang Jun-Ping Bai Jia-Ying Chen Jie Chen Yin-Jun Chen Yun-Zhong Dong Chun-Lan Han ling li li-Ming liu Jian-Jun Pan Fu-Peng Song Fu-Jun Sun Deng-Feng Wang Tian-Wei Wang Xiang-Hua Wei Hong-Qi Wu Xia Zhao Qing Zhou Gan-lin Zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences college of Advanced Agricultural Sciences University of Chinese Academy of Sciences college of Resources and Environment Huazhong Agricultural University Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences college of Natural Resources and Environment South China Agricultural University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences college of Land and Environment Shenyang Agricultural University School of Land Science and Technology China University of Geosciences college of Land Science and Technology China Agricultural University college of Environmental and Resource Sciences Zhejiang University Institute of Digital Agriculture Zhejiang Academy of Agricultural Sciences college of Agriculture Heilongjiang Bayi Agricultural University Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural Sciences college of Natural Resources and Environment Northwest A & F University college of Resources and Environment Southwest University college of Resources Sichuan Agricultural University college of Resources and Environment Hunan Agricultural University Institute of Agricultural Product Quality Standard and Testing Research Tibet Academy of Agricultural and Animal Husbandry Sciences School of Agricultural Sciences Zhengzhou University Institute of Agriculture Environment and Resources Research Shanxi Academy of Agricultural Sciences college of Resources and Environment Henan Agricultural University college of Resources and Environment China Agricultural University college of Resources and Environmental Sciences Nanjing Agricultural University college of Resources and Environment Shandong Agricultural University Agricultural college Guangxi University college of Grassland and Environment Science Xinjiang Agricultural University college of Geographical Science Qinghai Normal University

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and ***,to date,few studies have addressed these ***,we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon(SIC) stocks in *** observe an overall decrease in SIC stocks in topsoil(0-30 cm)(11.33 g C m-2.r-1) from the 1980 s to the 2.10 *** SIC stocks have decreased by～8.99±2.2.%(1.37±0.37 Pg C).The average SIC losses across {2.(0.046 Pg C yr-1) and in cropland(0.016 Pg C yr-1) account for～17.6%-2..0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland,*** deposition and climate change have profound influences on SIC *** estimate that～19.12.-19.47% of SIC stocks will be further lost by *** consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration,which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.

关键词： china soil inorganic carbon stocks global change carbonate soil acidification

基于绿证-阶梯式碳交易交互的源荷互补调度优化

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中国电力 2023年第9期56卷 149-156页

作者：孟宇翔马刚李豪李伟康徐健玮李天宇南京师范大学电气与自动化工程学院江苏南京210046

针对多能耦合的区域综合能源系统的低碳经济运行问题,提出基于绿证-阶梯式碳交易交互的源荷互补优化调度模型。首先,通过引入绿证-阶梯式碳交易交互机制来提高源侧可再生能源的消纳水平和降低系统碳排放量;其次,在负荷侧引入考虑用户满... 详细信息

针对多能耦合的区域综合能源系统的低碳经济运行问题,提出基于绿证-阶梯式碳交易交互的源荷互补优化调度模型。首先,通过引入绿证-阶梯式碳交易交互机制来提高源侧可再生能源的消纳水平和降低系统碳排放量;其次,在负荷侧引入考虑用户满意度的激励型需求响应和调峰收益来实现热电负荷的“削峰填谷”;最后,以日运行成本最小化为目标,采用Cplex求解器对模型进行求解。算例结果表明:绿证-阶梯式碳交易交互机制有助于充分发挥激励型需求响应的优化能力,提高源侧可再生能源的消纳能力,实现源荷侧协同降碳,降低系统运行成本,有效提高系统运行的绿色性、低碳性和经济性。

关键词：源荷互补绿色电力证书阶梯式碳交易交互机制