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lipschitz continuity of best approximations and Chebyshev centers

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Chinese Science Bulletin 1998年第3期43卷 185-188页

作者： li Chong 1 and wang xinghua 2 1. Center for Mathematical Sciences, zhejiang university, hangzhou 310027, china 2. Department of mathematics, hangzhou university, hangzhou 310028, china Center for Mathematical Sciences Zhejiang University Hangzhou China Department of mathematics Hangzhou University Hangzhou China

The lipschitz continuity results are given for best approximations and Chebyshev centers. Consequently, the open problem presented by Septycki and Vleck is solved completely.

关键词： best approximation Chebyshev center uniform convexity.

Identification of the BTA8 gene reveals the contribution of natural variation to tiller angle in rice

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Journal of Integrative Agriculture 2024年第8期23卷 2868-2871页

作者： Junrong liu Xingyu wang Jing wang Junhua Ye Mengchen Zhang Qun Xu Yaolong Yang xinghua Wei Baoyan Jia Yue Feng State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China College of Agronomy Shenyang Agricultural UniversityShenyang 110866China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China

Plant architecture is a collection of major agronomic traits that determines rice grain production,and it is mainly influenced by tillering,tiller angle,plant height and panicle morphology(wang and li 2006).Tiller angle is one of the critical components that determines rice plant architecture,which in turn influences grain yield mainly due to its large impact on plant density(wang et al.2022).

关键词： angle panicle agronomic

Chinese expert consensus on the diagnosis and treatment of balanoposthitis

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Chinese Medical Journal 2024年第13期137卷 1519-1521页

作者： li Zhang Amer A.A.Abdulrahman Hao Guo Jia’an Zhang xinghua Gao Weihua Pan Gang wang Jinhua Xu Yuling Shi liuqing Chen Hongxiang Chen Songmei Geng Yuping Ran Hongwei wang Xiaoyong Man Jianmin Chang Furen Zhang litao Zhang Guangwen Yin Jianzhong Zhang Wei Lai Zhibin Niu Hongkun Jiang Haibo liu Yaolong Chen Jianjian wang Department of Dermatology The First Hospital of China Medical UniversityShenyangLiaoning 110001China Key Laboratory of Immunodermatology Ministry of Education and NHCNational Joint Engineering Research Center for Theranostics of Immunological Skin DiseasesShenyangLiaoning 110001China Department of Dermatology Chinese Academy of Medical Science and Peking Union Medical CollegeNanjingJiangsu 210042China Department of Dermatology Second Affiliated Hospital of Naval Medical UniversityShanghai 200003China Department of Dermatology Xijing HospitalFourth Military Medical UniversityXi’anShaanxi 710032China Department of Dermatology Huashan HospitalFudan UniversityShanghai 200040China Department of Dermatology Shanghai Skin Disease HospitalTongji University School of MedicineShanghai 200443China Department of Dermatology Wuhan No.1 HospitalWuhanHubei 430022China Department of Dermatology Huazhong University of Science and Technology Union Shenzhen HospitalShenzhenGuangdong 518052China Department of Dermatology Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi 710004China Department of Dermatovenereology West China HospitalSichuan UniversityChengduSichuan 610041China Department of Dermatology Huadong HospitalFudan UniversityShanghai 200040China Department of Dermatology Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang 310009China Department of Dermatology Beijing HospitalBeijing 100730China Shandong Provincial Hospital for Skin Diseases&Shandong Provincial Institute of Dermatology and Venereology Shandong First Medical University&Shandong Academy of Medical SciencesJinanShandong 250061China Department of Dermatology Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300120China Department of Dermatology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Department of Dermatology Peking University People’s HospitalBeijing 100044 China Department of Dermatology Third Affi

Balanoposthitis(BP),a common male genitalia inflammation,is managed by clinicians from different specialties,including urology,pediatrics,dermatology,and *** to this diverse array of clinicians involved,there exists a lack of consistent,evidence-based recommendations for *** development of the consensus engaged 19 representative hospitals and it adhered to rigorous protocols,encompassing international registration(IPGRP-2021CN003)and the application of evidence grading criteria and recommendation standards[Appendix S1,Supplementary File,http://***/CM9/C42].Over the period from December 2020 to October 2022,consensus on 12 clinical issues was reached through comprehensive evidence searches and two iterations of Delphi surveys[Supplementary File,http://***/CM9/C42].

关键词： Delphi diagnosis rigorous

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过渡金属水氧化催化剂及光阳极研究进展

陶瓷学报 2024年第4期45卷 643-657页

作者：黎健郭兴华张登松汪德高上海大学理学院上海200444 中国科学院、宁波材料技术与工程研究所先进能源材料工程实验室浙江宁波315201

光电化学(PEC)分解水为太阳能转换为氢能提供了一种极具潜力的绿色、可持续发展策略。复杂缓慢的水氧化反应限制了水分解的速率,因此高效光阳极的设计和制备被广泛关注和深入研究。总结了过渡金属水氧化催化剂,包括多相和均相非贵金属... 详细信息

光电化学(PEC)分解水为太阳能转换为氢能提供了一种极具潜力的绿色、可持续发展策略。复杂缓慢的水氧化反应限制了水分解的速率,因此高效光阳极的设计和制备被广泛关注和深入研究。总结了过渡金属水氧化催化剂,包括多相和均相非贵金属水氧化催化剂以及贵金属水氧化催化剂的研究进展。同时,介绍了过渡金属基光阳极的构筑及其性能,包括无机半导体光阳极TiO_(2)、Fe_(2)O_(3)、BiVO_(4)以及染料敏化光阳极。最后,提出构建高效稳定的水分解光阳极的策略及发展方向,为其将来在工业规模上实现高效和经济的太阳能—氢能转换提供参考。

关键词：水分解水氧化过渡金属水氧化催化剂染料敏化光阳极

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热传导模式对电弧增材制造800 MPa级船用高强钢组织与性能的影响

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焊接学报 2024年第5期45卷 38-46页

作者：郑文健李正阳王杏华宫旭辉闫德俊赖少波杨建国浙江工业大学机械工程学院杭州310023 中国船舶重工集团公司第七二五研究所洛阳471023 中船黄埔文冲船舶有限公司广东省舰船先进焊接技术企业重点实验室广州510715

为了研究热传导模式对800 MPa级船用高强钢增材构件组织与性能的影响,采用电弧增材制造技术在不同工艺下沉积了800 MPa级船用高强钢构件,并对其进行微观组织表征和力学性能测试.沿高度方向沉积时,构件底部主要为针状铁素体和马氏体组织... 详细信息

为了研究热传导模式对800 MPa级船用高强钢增材构件组织与性能的影响,采用电弧增材制造技术在不同工艺下沉积了800 MPa级船用高强钢构件,并对其进行微观组织表征和力学性能测试.沿高度方向沉积时,构件底部主要为针状铁素体和马氏体组织,中部和顶部为块状和针状铁素体+粒状贝氏体组织,水平和竖直方向的屈服强度分别为708 MPa和652MPa,抗拉强度分别为895 MPa和831 MPa,-60℃冲击吸收能量分别为66 J和86 J;沿横向沉积时,构件的显微组织为细小的针状铁素体和板条状马氏体,屈服强度和抗拉强度分别达到929 MPa和1 020 MPa,-60℃冲击吸收能量为92 J,结果表明,800 MPa级船用高强钢增材构件的力学性能对热传导模式的敏感性较高,优化热传导模式可以明显提升其综合力学性能.

关键词：电弧增材制造船用高强钢微观组织特征力学性能

Molecular simulation of diffusion of rigidity-tuned nanoparticles in biological hydrogels

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Acta Mechanica Sinica 2019年第2期35卷 376-383页

作者： Falin Tian Hui wang Huawei li Ping Cheng xinghua Shi Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory for Nanosystem and Hierarchy Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 China university of Chinese Academy of Sciences Beijing 100049 China

The penetration capability of the drug nano-carriers (NCs) in biological hydrogels, such as mucus and tumor interstitial matrix, would typically influence the efficiency of drug delivery. Understanding the effect of the physicochemical property of the drug carriers on their diffusion capability in biological hydrogel becomes important for designing and optimizing the nano-carriers. Here, using a coarse-grained molecular dynamics model, we studied how the rigidity of NCs affected their diffusivity in biological hydrogel. The results showed that semi-elastic NCs have higher diffusivity than the hard and the soft NCs. Furthermore, the affinity between the NCs and biological hydrogels and the size ratio between the hydrogel meshes and NCs have also affected the diffusivity of the NCs. Further analysis revealed the mechanism that the deformation of the NCs dominates their diffusivity. These findings demonstrated that the rigidity of NCs is a key parameter in designing efficient NCs for deep penetration into the biological hydrogels.

关键词： Diffusion Biological hydrogel Drug delivery Extracellular matrix

MELLT3 protects against cerebral ischemia-reperfusion (I/R) injury through up-regulation of m6A modification

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BIOCELL 2023年第3期47卷 619-626页

作者： JING JIN xinghua wang XIAOXIAO ZHENG JIAHUA LAN li ZHENG YING CAI HUI CHEN HONGWEI wang liFANG ZHENG Department of Neurosurgery The First Affiliated HospitalZhejiang University School of MedicineHangzhou310003China Department of Neurology Puren Hospital Affiliated to Wuhan University of Science and TechnologyWuhan430081China Cancer Institute of Integrated Traditional Chinese and Western Medicine Zhejiang Academy of Traditional Chinese MedicineTongde Hospital of Zhejiang ProvinceHangzhou310012China Department of Animal Experimental Center The First Affiliated HospitalZhejiang University School of MedicineHangzhou10003China Department of Anesthesiology Tongde Hospital of Zhejiang ProvinceHangzhou310012China Department of Neurology Yantian Hospital of Southern University of Science and TechnologyShenzhen518000China

Ischemic cerebrovascular disease is a leading cause of death globally and is often exacerbated by cerebral ischemic/reperfusion injury(CIRI).The exact mechanisms underlying I/R injury are *** this study,we aimed to determine the role of m6A-modified methylase complex methyltransferase-like 3(METTL3)in cerebral ischemiareperfusion(I/R)*** found that m6A and METTL3 levels increased in OGD/RX-induced mouse astrocytescerebellar(MA-C)and the brain of middle cerebral artery occlusion(MCAO)model ***3 siRNA treatment reduced OGD-RX-induced MAC cell viability and proliferation,which increased with METTL3 *** cytometry analysis showed that silencing METTL3 significantly enhanced OGD/RX-induced MAC apoptosis,which was significantly reduced with METTL3 *** an MCAO model,METTL3 overexpression significantly reduced cerebral infarction area and decreased brain cell apoptosis,indicating that METTL3 OE treatment could ameliorate brain edema and ***,METTL3 could be used as a target to treat I/R injury.

关键词： METTL3 m6A Cerebral ischemia-reperfusion

Brittle culm 25, which encodes an UDP-xylose synthase, affects cell wall properties in rice

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The Crop Journal 2023年第3期11卷 733-743页

作者： Siliang Xu Mengchen Zhang Junhua Ye Dongxiu Hu Yuanyuan Zhang Zhen li Junrong liu Yanfei Sun Shan wang Xiaoping Yuan Yue Feng Qun Xu xinghua Wei Dali Zeng Yaolong Yang china National Center for Rice Improvement/State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006ZhejiangChina The Key Laboratory for Quality Improvement of Agricultural Products of zhejiang Province Zhejiang A&F UniversityHangzhou 311300ZhejiangChina

Because plant mechanical strength influences plant growth and development,the regulatory mechanisms underlying cell-wall synthesis deserve *** mutants are useful for such *** have identified a novel brittle culm 25(bc25)mutant with reduced growth and partial ***25 encodes an UDP-glucuronic acid decarboxylase involved in cellulose synthesis and belongs to the UXS family.A single-nucleotide mutation in BC25 accounts for its altered cell morphology and cellwall *** electron microscopy analysis showed that the thickness of the secondary cell wall was reduced in *** analysis revealed significant increases in content of rhamnose and arabinose but not of other monosaccharides,indicating that BC25 was involved in xylose synthesis with some level of functional *** assays suggested that BC25 functions with high activity to interconvert UDP-glucuronic acid(UDP-Glc A)and *** staining showed that BC25 was ubiquitously expressed with higher expression in culm,root and sheath,in agreement with that shown by quantitative real-time(q RT)-***-seq further suggested that BC25 is involved in sugar *** conclude that BC25 strongly influences rice cell wall formation.

关键词： Brittle culm Mechanical strength UDP-xylose Cell wall Rice

福建南日水道及其邻近海域表层沉积物地球化学特征及物源指示

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地质与勘探 2024年第4期60卷 762-775页

作者：黄艳娜王锦荣陈钦李鑫王永超李靖林建绥刘红玲中国冶金地质总局第二地质勘查院福建福州350108 福建省海洋生物多样性保护与永续利用重点实验室闽江学院福建福州350108

福建南日水道是沟通兴化湾与台湾海峡能量和物质转换的重要航道,其海洋沉积物所包含的物源信息对探讨中国东部海域的水文特征及沉积特点具有重要意义。本文对南日水道及其邻近海域兴化湾的海洋表层沉积物的粒度与粒径参数、主微量元素... 详细信息

福建南日水道是沟通兴化湾与台湾海峡能量和物质转换的重要航道,其海洋沉积物所包含的物源信息对探讨中国东部海域的水文特征及沉积特点具有重要意义。本文对南日水道及其邻近海域兴化湾的海洋表层沉积物的粒度与粒径参数、主微量元素及稀土元素组成进行了分析。结果显示:南日水道沉积物以砂质粉砂为主,但远岸海域浅部存在细粒黏土质粉砂,水动力条件总体中等,横向上,远岸相对近岸水动力条件减弱;兴化湾沉积物粒度随深度加深呈变粗趋势,水动力条件由浅至深也逐渐加强,但总体相对南日水道较弱。对研究区表层沉积物主微量元素进行的R型因子分析结果显示:南日水道沉积物受粗碎屑组分(如石英、生物碎屑等)、细粒陆源碎屑矿物、水动力条件以及海洋化学沉积作用因素制约;兴化湾沉积物受陆源碎屑沉积、海洋生物沉积作用因素制约。稀土元素配分图以及分异参数物源判别图显示南日水道与兴化湾沉积物的源区较为相似,主要受浙闽河流物质以及浙闽沿岸流携带的长江源物质的控制。

关键词：海洋沉积物地球化学物源南日水道兴化湾福建