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Spatiotemporal mismatch of land use functions and land use efficiencies and their influencing factors:A case study in the Middle Reaches of the Yangtze River,China

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Journal of Geographical Sciences 2024年第1期34卷 62-88页

作者： GAO Yunxiao WANG Zhanqi CHAI Ji zhang hongwei School of Public Administration China University of GeosciencesWuhan 430074China

Identification of the spatial mismatch between land use functions(LUFs)and land use efficiencies(LUEs)is essential to regional land use policies.However,previous studies about LUF-LUE mismatch and its driving factors have been insufficient.In this study,we explored the spatiotemporal mismatch of LUFs and LUEs and their influencing factors from 2000 to 2018 in the Middle Reaches of the Yangtze River(MRYR).Specifically,we used Spearman correlation analysis to reveal the trade-off relationship between LUFs and LUEs and determine the direction of the influencing factors on the LUF-LUE mismatch,adopted spatial mismatch analysis to measure the imbalance between LUFs and LUEs,and used the geographical detector model to analyze the factors influencing this spatial mismatch.The results showed that production function(PDF),living function(LVF),ecological function(ELF),agricultural production efficiency(APE),urban construction efficiency(UCE),and ecological services efficiency(ESE)all displayed significant spatial heterogeneity.The high trade-off areas were widely distributed and long-lasting in agricultural space and urban space,while gradually decreasing in ecological space.Wuhan and Changsha showed high spatial mismatch coefficients in urban space,but low spatial mismatch coefficients in agricultural space.Hunan generally presented high spatial mismatch coefficients in ecological space.Furthermore,the interaction of the proportion of cultivated area and transportation accessibility exacerbated the mismatch in agricultural space.The interaction effects of capital investment and technology innovation with other factors have the most intense impact on the mismatch in urban space.The internal factor for cultivated area interacts with other external factors to drastically affect ecological spatial mismatch.

关键词： land use function land use efficiency spatial mismatch analysis influencing factors Middle Reaches of the Yangtze River

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Changes in blood lipid levels and influencing factors among treatment-na?ve adult male HlV/AlDS patients following BlC/FTC/TAF vs. 3TC+EFV+TDF

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中华医学杂志(英文版) 2024年第12期137卷 2024 May 30页

作者： Wang Xi Liu An Li Zaicun zhang hongwei Wu Ruojun Esther Shao Ying Li Jianwei Ye Jiangzhu Liu Wei Sun Lijun Clinic of Center for Infection Beijing Youan Hospital Capital Medical University Beijing China Harvard School of Dental Medicine Boston MA USA Department of Pharmacy Beijing Youan Hospital Capital Medical University Beijing China Chinese Association of STD and AIDS Prevention and Control Beijing China.

Background: Antiretroviral therapy (ART) was often associated with dyslipidemia among human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) patients. This study aimed to assess treatment-na?ve adult male patients with HIV/AIDS who initiated ART with either co-formulated bictegravir, emtricitabine, and tenofovir alafenamide (BIC/FTC/TAF) or lamivudine, efavirenz, and tenofovir disoproxil fumarate (3TC+EFV+TDF), monitoring at weeks 4, 12, 24, and 48.Methods: A case-control retrospective study was conducted. The newly diagnosed HIV-infected individuals attending the sexual transmission disease (STD)/AIDS clinic of Beijing Youan Hospital, Capital Medical University, from January to December 2021. The patients were divided into BIC/FTC/TAF group or 3TC+EFV+TDF group. High-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglyceride (TG), and total cholesterol (TC) at different time points over 48 weeks between two groups were compared. A multivariate Cox regression model was used to identify relevant influencing factors for the population at high risk of increased LDL-C.Results: A total of 870 participants, with 510 in BIC/FTC/TAF group and 360 in 3TC+EFV+TDF group. There were no statistically significant differences in median age, baseline CD4/CD8 ratio, median body mass index (BMI) between the two groups. In both two groups, levels of TG, TC, and LDL-C were higher at 4 weeks, 12 weeks, and 24 weeks of treatment (allP 0.05). In addition, the differences in average changes of the level of TG, TC, HDL-C, and LDL-C from weeks 4, 12, 24, and 48 to baseline between two groups were not statistically significant (allP >0.05). Multivariate Cox proportional risk model analysis showed that initiating ART with HIV RNA ≥105 copies/mL (compared with <105 copies/mL) was associated with an increased risk of elevated LDL-C (hazard ratio = 1.26, 95% confidence in

关键词： Antiretroviral therapy Blood lipids Bictegravir/emtricitabine/tenofovir alafenamide Lamivudine, efavirenz, and tenofovir disoproxil fumarate BIC/FTC/TAF 3TC+EFV+TDF HIV AIDS

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Application of system identification in a practical active noise control system

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Control Theory and Technology 2024年第2期22卷 282-291页

作者： Yu Yuan Zhaoyang Sun hongwei zhang School of Mechanical Engineering Xihua UniversityChengdu610039SichuanChina School of Electrical Engineering Southwest Jiaotong UniversityChengdu611756SichuanChina School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen518055GuangdongChina

Noise pollution has become increasingly severe around the world due to fast urbanization. How to soundproof windows from outside noise is of significant interest for both academia and industry. This paper reports an experimental implementation of normalized minmax active noise control (ANC) algorithm on an open window system, where identifying the model of acoustic sound paths plays a central role. By doing this, traffic noise is attenuated by the ANC system, leading to a relatively quiet indoor environment, while the natural lighting and ventilation functions of a window are remained. Our experiments show that an average of 19 dB(A) noise reduction is achieved.

关键词： Active noise control Multi-input-multi-output system Normalized minimax algorithm System identification

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Efficient and reversible separation of NH_(3) by deep eutectic solvents with multiple active sites and low viscosities

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Chinese Journal of Chemical Engineering 2024年第3期67卷 97-105页

作者： Jiayin zhang Lu Zheng Siqi Fang hongwei zhang Zhenping Cai Kuan Huang Lilong Jiang National Engineering Research Center of Chemical Fertilizer Catalyst(NERC-CFC) College of Chemical EngineeringFuzhou UniversityFuzhou 350002China Qingyuan Innovation Laboratory Quanzhou 362801China

The efficient separation and collection of ammonia(NH_(3))during NH_(3) synthesis process is essential to improve the economic efficiency and protect the environment.In this work,ethanolammonium hydrochloride(EtOHACl)and phenol(PhOH)were used to prepare a novel class of deep eutectic solvents(DESs)with multiple active sites and low viscosities.The NH_(3) separation performance of EtOHACl+PhOH DESs was analyzed completely.It is figured out that the NH_(3) absorption rates in EtOHACl+PhOH DESs are very fast.The NH_(3) absorption capacities are very high and reach up to 5.52 and 10.74 mol·kg1 at 11.2 and 100.4 kPa under 298.2 K,respectively.In addition,the EtOHACl+PhOH DESs present highly selective absorption of NH_(3) over N_(2) and H_(2) and good regenerative properties after seven cycles of absorption/desorption.The intrinsic separation mechanism of NH_(3) by EtOHACl+PhOH DESs was further revealed by spectroscopic analysis and quantum chemistry calculations.

关键词： Separation Absorption Ionic liquid Deep eutectic solvent Multiple active site Low viscosity

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The CropGPT project:Call for a global,coordinated effort in precision design breeding driven by Al using biological big data

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Molecular Plant 2024年第2期17卷 215-218页

作者： Wanchao Zhu Rui Han Xiaoyang Shang Tao Zhou Chengyong Liang Xiaomeng Qin Hong Chen Zaiwen Feng hongwei zhang Xingming Fan Weifu Li Lin Li National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Key Laboratory of Biology and Genetic Improvement of Maize in Arid Area of Northwest Region College of AgronomyNorthwest A&F UniversityYanglingShaanxi712100China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China institute of Food Crops Sciences Yunnan Academy of Agricultural Sciences2238 Beijing RoadKunmingYunnan 650200China Hubei Hongshan Laboratory Wuhan 430070China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityWuhan 430070China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China

Since the beginning of humanity,people have been seeking practical solutions to meet their most basic need:food.The advent of agriculture greatly increased the food supply and led to a rapid increase in the human population.Enhanced food production via agriculture can be attributed to both improved crop management practices and crop breeding through genetics.Plant(crop)breeding has been categorized into four major stages based on the techniques employed(Wallace et al.,2018).

关键词： breeding seeking Wallace

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仅测角机动目标跟踪原始对偶高斯粒子滤波

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电子与信息学报 2024年第4期46卷 1408-1417页

作者：张宏伟中山大学航空航天学院深圳518107

为消减仅测角机动目标跟踪系统中由时空不一致引起的投影基点偏移和高斯截断两类误差,该文采用映射表示和?1-?2,1稀疏正则表征时空因果一致约束,引入模糊综合贴近度建立次优建议分布,构建因果不变结构传递粒子集合以近似目标后验高斯积... 详细信息

为消减仅测角机动目标跟踪系统中由时空不一致引起的投影基点偏移和高斯截断两类误差,该文采用映射表示和?1-?2,1稀疏正则表征时空因果一致约束,引入模糊综合贴近度建立次优建议分布,构建因果不变结构传递粒子集合以近似目标后验高斯积分,推导原始对偶高斯粒子滤波(PDGPF)算法。实验结果表明,相比交会测量最小二乘法,PDGPF算法定位旋翼无人机(UAV)的精度提升了18.4%~69.6%。相比于软约束辅助粒子滤波(SCAPF)算法,PDGPF算法在时空映射一致约束下能够自适应地修正粒子的权值,从而更为准确、稳定地跟踪机动点目标,整体计算负担减小了12.9%。

关键词：机动目标跟踪仅测角时空不一致原始对偶因果不变

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Energy Decay for a Type of Plate Equation with Degenerate Energy Damping and Source Term

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Journal of Partial Differential Equations 2023年第3期36卷 305-320页

作者： LIU Gongwei LU Yangyang zhang hongwei College of Science Henan University of TechnologyZhengzhou 450001China

In this paper,we mainly investigate the initial boundary value problem for a plate equation with non-local degenerate energy damping term and source term.By using potential well and Nakao's inequality,we establish the global existence and the energy decay rate when the initial data is starting in the stable set.Finally,we derive some further estimate on the stability.

关键词： Plate equation global existence energy damping non-exponential decay

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Constrained Unscented Kalman Filtering for Bearings-Only Maneuvering Target Tracking

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Chinese Journal of Electronics 2020年第3期29卷 501-507页

作者： zhang hongwei XIE Weixin Sun Yat-sen University ATR Key Laboratory Shenzhen University

To track the bearings-only maneuvering target tracking accurately online, the soft measurement constraints are implemented into the Unscented Kalman filtering(UKF). To deal with the soft measurement constraints, the Lasso regularization is added as the obstacle function. In doing this, the sampled sigma points can be restricted into the feasible region. To enhance the sampling efficiency, the global optimal solution is acquired by a heuristic optimizer. To smooth the outliers,the posterior distribution is approximated by a Gaussian mixture consists of the original and the modified priors with the fuzzy weighted factor. Simulated results indicate the accuracy and the computational efficiency of the proposed method.

关键词： Bearings-only maneuvering target tracking Soft measurement constraints Optimal

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故宫学研究的历程及前瞻

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故宫博物院院刊 2024年第2期 47-58,150页

作者：章宏伟故宫出版社

作为一门以故宫及其历史文化内涵为研究对象,集价值挖掘与阐释、文物保护、文化传播为一体的综合性学问,故宫学学术理念提出以后,故宫博物院高度重视,也得到学界的积极响应。把故宫当作一个文化整体的综合研究,得到了前所未有的关注。... 详细信息

作为一门以故宫及其历史文化内涵为研究对象,集价值挖掘与阐释、文物保护、文化传播为一体的综合性学问,故宫学学术理念提出以后,故宫博物院高度重视,也得到学界的积极响应。把故宫当作一个文化整体的综合研究,得到了前所未有的关注。为了夯实故宫学研究,让故宫学在学术之林中生根,故宫博物院成立了故宫学研究所。研究所走出故宫“红墙”,通过组建故宫学研究队伍、在高校成立故宫学研究机构、招收故宫学方向硕博士研究生、举办学术研讨会与筹划组织编撰“故宫学视野丛书”等方式,搭建故宫学研究平台,扩大故宫学的影响力,提升故宫学研究水平,取得了卓有成效的成绩,故宫学学科体系正在逐步建立与完善。

关键词：故宫学郑欣淼故宫价值文物保护文化传播整体性

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公共文化服务数字化赋能的影响逻辑和发展面向

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图书馆论坛 2024年第3期44卷 80-87页

作者：张宏伟中国政法大学光明新闻传播学院传播学研究所

信息技术改变了公共文化服务基础环境,数字化通过增加新生产要素、促成技术与文化的高适配,扩张传播边界、促进规模经济和长尾经济,数字技术深度介入、缓解“成本病”问题,促进用户内容生产、重塑商业价值等路径为公共文化服务发展赋能... 详细信息

信息技术改变了公共文化服务基础环境,数字化通过增加新生产要素、促成技术与文化的高适配,扩张传播边界、促进规模经济和长尾经济,数字技术深度介入、缓解“成本病”问题,促进用户内容生产、重塑商业价值等路径为公共文化服务发展赋能。公共文化服务的数字化建设是在数字技术支撑下,实现新的价值创造,利用数字优势为公众提供具有良好获得感和体验感的新型服务。公共文化服务数字化需要用系统化的战略眼光进行统筹规划,建构良好的公共文化服务数字生态系统,使各类要素、各级各类主体之间形成协同共建、共创、共生、共享的开放型价值网络。

关键词：数字化数字化赋能公共文化服务

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