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Journal of Earth Science 2022年第3期33卷 736-752页

作者： Zaili Tao jiyuan yin Wen Chen Yuelong Chen Jingbo Sun Zhihua Xu School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China Limited Liability Company TBEA DUSHANBE Mining IndustryChangji 831100China

The Late Paleozoic volcanic rocks are widespread in the Western Tianshan,and mainly consist of basalt,trachyte,trachy-andesite,andesite and rhyolite.However,the formation timing and tectonic implications of the volcanic rocks remain controversial.To obtain a comprehensive dataset with adequate spatial coverage,we collected the published zircon U-Pb age data of the Late Paleozoic volcanic rocks in the Western Tianshan,and mapped the temporal and spatial distribution of these volcanic rocks.Our compiled dataset indicates that the volcanic rocks in the Western Tianshan were formed in two major stages:Late Silurian-Early Carboniferous and Late Carboniferous-Middle Permian.The southward subduction of the Northern Tianshan Ocean formed a large number of Late Silurian-Early Carboniferous volcanic rocks.The flare-up of Late Carboniferous to Middle Permian magmatism in the NTOB was considered to be the response of the slab-roll back of the northern Tianshan Ocean.Therefore,arc magma assemblage and spatial-temporal distribution are of great significance to identify the dynamic mechanism transformation of subduction zone.

关键词： volcanic rocks zircon Western Tianshan tectonic transformation slab-roll back

新疆西准噶尔造山带北部晚石炭世I型花岗岩的岩石地球化学和锆石Hf- O同位素特征:对其岩石成因与构造过程的启示

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地质学报 2024年第4期98卷 1146-1163页

作者：张蕊尹继元邱亮陶再礼杨帆陈文自然资源部深地科学与探测技术实验室自然资源部同位素地质重点实验室中国地质科学院地质研究所北京100037 中国地质大学地球科学与资源学院北京100083

新疆西准噶尔造山带发育大量的晚古生代侵入岩,但它们的岩浆源区和形成的构造背景仍然存在较大争议。本文对西准噶尔造山带北部阿尔加提山石英二长岩进行了详细的岩石学、地球化学、锆石Hf-O同位素研究,旨在揭示其岩石成因和构造背景,... 详细信息

新疆西准噶尔造山带发育大量的晚古生代侵入岩,但它们的岩浆源区和形成的构造背景仍然存在较大争议。本文对西准噶尔造山带北部阿尔加提山石英二长岩进行了详细的岩石学、地球化学、锆石Hf-O同位素研究,旨在揭示其岩石成因和构造背景,探讨其与地壳生长的关系。两件样品的锆石U-Pb定年结果分别为301.8±1.4 Ma和303.7±3.1 Ma,形成于晚石炭世。阿尔加提山石英二长岩样品含有角闪石,高硅(SiO_(2)=67.8%~68.9%)、富碱(K_(2)O+Na_(2)O=9.36%~9.89%)、具有低的铝饱和指数(A/CNK=0.96~1.00),伴有低的Ga/Al值(2.27~2.34),Rb/Sr值(0.35~0.50),显示出I型花岗岩的特征。同时,这些样品均富集大离子亲石元素和轻稀土,亏损高场强元素(如Nb、Ta和Ti等),和负的Eu异常(δEu=0.72~0.85),类似于典型俯冲相关的岛弧岩浆特征。这些I型花岗岩具有高的、正的锆石ε_(Hf)(t)值(+11.2~+14.5)和年轻的二阶段Hf模式年龄(t_(DM2)=604~392 Ma),以及比地幔值略高的锆石δ^(18)O值(5.73‰~6.51‰)和高的锆石饱和封闭温度(T_(zr)=854~895℃),可能是新生下地壳在高温背景下部分熔融的产物。结合前人在西准噶尔造山带北部发现的晚石炭世早二叠世A1和A2型花岗岩和埃达克质岩墙,本文认为这些高温岩石组合的形成可能与晚石炭世的洋中脊俯冲及其相关板片窗作用有关。在洋脊俯冲背景下,软流圈地幔上涌加热新生下地壳,促使其发生部分熔融形成I和A_(1)和A_(2)型花岗岩。西准噶尔造山带大多数下地壳主要形成于早古生代,表明该地区在显生宙发生了显著的地壳增长。

关键词：西准噶尔造山带 I型花岗岩晚石炭世洋脊俯冲 Hf-O同位素

钛表面电化学沉积氢氧化镁与氧化镁涂层的抗菌性能与生物活性

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硅酸盐学报 2024年第5期52卷 1570-1577页

作者：杜佳恒范鑫丽肖东琴刘刚利尹一然贺葵闫吉元李忠谭言飞段可西南医科大学附属医院骨与关节外科四川省骨科置入器械研发及应用技术工程实验室川北医学院第二临床学院南充市中心医院组织工程与干细胞研究所山东大学齐鲁医学院口腔医学院口腔医院口腔颌面外科山东省口腔组织再生重点实验室山东省口腔生物材料与组织再生工程实验室山东省口腔疾病临床医学研究中心四川大学生物材料工程研究中心

骨科植入物相关感染已严重影响手术效果及术后康复，因此需研究具备良好抗菌性能及生物活性的涂层。首先确定电化学沉积氢氧化镁[Mg（OH）2]及氧化镁（MgO）涂层的制备条件，在钛表面沉积不同时间的Mg（OH）2及MgO涂层，评价并比较2种... 详细信息

骨科植入物相关感染已严重影响手术效果及术后康复，因此需研究具备良好抗菌性能及生物活性的涂层。首先确定电化学沉积氢氧化镁[Mg（OH）2]及氧化镁（MgO）涂层的制备条件，在钛表面沉积不同时间的Mg（OH）2及MgO涂层，评价并比较2种涂层的体外抗菌及生物相容性。各组样品表面均匀分布颗粒样物质[Mg（OH）2及Mg O]，颗粒密度与覆盖率随沉积时间增加。Mg（OH）2及MgO涂层对金黄色葡萄球菌及大肠杆菌均具良好抗菌性且抗菌率随沉积时间增强。沉积≤3 h,Mg O抑菌率显著高于Mg（OH）2；沉积≥6 h，两者抑菌率均接近100%。Mg（OH）2及MgO涂层细胞毒性随沉积时间上升，其中沉积0.5、1.0 h的2组样品毒性随培养时间下降，其余3组随培养时间上升。沉积0.5 h的Mg（OH）2及MgO样品与细胞共培养5 d时的细胞存活率为152%、90%；沉积12 h的2组样品与细胞共培养5 d时细胞存活率为2%、6%。研究表明电化学沉积法可成功制备Mg（OH）2涂层，且煅烧后可获得Mg O涂层。沉积1h的Mg（OH）2及Mg O涂层样品具备良好抗菌性能的同时细胞毒性较小。

关键词：骨科植入物抗菌电化学沉积氢氧化镁氧化镁生物相容性

溶胶浸渗结合电沉积制备氧化镁-磷酸钙复合抗菌涂层

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中国组织工程研究 2024年第29期28卷 4663-4670页

作者：谭俊杰杜佳恒文振宇闫吉元贺葵段可尹一然李忠西南医科大学附属医院骨科四川省骨科置入器械研发及应用技术工程实验室四川省泸州市646000

背景:磷酸钙(CaP)涂层被广泛用于改善钛植入物与骨的整合,但存在感染风险,因此有必要赋予CaP涂层抗菌能力。目的:通过氧化镁(MgO)溶胶浸渗制备MgO-CaP复合涂层,评价其体外抗菌能力和细胞相容性。方法:通过滴定法确定CaP电沉积的电解液条... 详细信息

背景:磷酸钙(CaP)涂层被广泛用于改善钛植入物与骨的整合,但存在感染风险,因此有必要赋予CaP涂层抗菌能力。目的:通过氧化镁(MgO)溶胶浸渗制备MgO-CaP复合涂层,评价其体外抗菌能力和细胞相容性。方法:通过滴定法确定CaP电沉积的电解液条件,在钛表面制备CaP涂层(记为Ti-CaP);采用不同质量分数(15%,30%,50%)的MgO溶胶浸渗处理CaP涂层并煅烧成为MgO-CaP复合涂层,分别记为Ti-CaP-15Mg、Ti-CaP-30Mg和Ti-CaP-50Mg,表征涂层的微观形貌、拉伸性能、临界载荷与体外Mg^(2+)释放情况。将金黄色葡萄球菌菌液分别接种于纯钛片及Ti-CaP、Ti-CaP-15Mg、Ti-CaP-30Mg和Ti-CaP-50Mg表面,24,48 h后采用稀释涂布平板法检测抗菌率。将小鼠成骨细胞悬液分别接种于纯钛片及Ti-CaP、Ti-CaP-15Mg、Ti-CaP-30Mg和Ti-CaP-50Mg涂层钛片表面,采用CCK-8法检测细胞增殖,计算细胞存活率;同时观察复合涂层浸泡于DMEM培养基中的微观形貌变化。结果与结论:①电沉积在钛表面制备出由片状磷酸八钙晶体堆积组成的多孔CaP涂层,经浸渗-煅烧处理后,MgO颗粒聚集填充磷酸八钙晶体的间隙,并且填充程度随MgO含量增加而上升;3组复合涂层第1天均出现Mg^(2+)快速释放,从第3天开始Mg^(2+)释放速率明显下降,至第7天仍可检测出少量Mg^(2+)释放;Ti-CaP-30Mg涂层钛片的屈服强度、抗拉强度、断裂生长率与纯钛片比较差异均无显著性意义(P>0.05);Ti-CaP、Ti-CaP-15Mg、Ti-CaP-30Mg和Ti-CaP-50Mg组临界载荷比较差异无显著性意义(P>0.05)。②除纯钛片及Ti-CaP无抗菌性能外,其余样品均具有良好的抗菌性能,并且抗菌率随涂层中MgO含量的增加而增大。③共培养1,3 d,Ti-CaP-15Mg组、Ti-CaP-30Mg组和Ti-CaP-50Mg组细胞存活率低于纯钛组、Ti-CaP组(P0.05);随着浸泡于培养基中时间的延长,涂层中MgO的含量逐渐减少。④结果表明,通过MgO浸渗处理赋予CaP涂层抗菌性的同时保持了其生物相容性。

关键词：骨科植入物钛抗菌氧化镁磷酸钙抗菌涂层细胞毒性

Fed-DFE: A Decentralized Function Encryption-Based Privacy-Preserving Scheme for Federated Learning

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Computers, Materials & Continua 2022年第4期71卷 1867-1886页

作者： Zhe Sun jiyuan Feng Lihua yin Zixu Zhang Ran Li Yu Hu Chongning Na Cyberspace Institute of Advanced Technology(CIAT) Guangzhou UniversityGuangzhouChina School of Electrical and Data Engineering University of Technology SydneySydneyAustralia Zhejiang Lab HangzhouChina

Federated learning is a distributed learning framework which trains global models by passing model parameters instead of raw data.However,the training mechanism for passing model parameters is still threatened by gradient inversion,inference attacks,etc.With a lightweight encryption overhead,function encryption is a viable secure aggregation technique in federation learning,which is often used in combination with differential privacy.The function encryption in federal learning still has the following problems:a)Traditional function encryption usually requires a trust third party(TTP)to assign the keys.If a TTP colludes with a server,the security aggregation mechanism can be compromised.b)When using differential privacy in combination with function encryption,the evaluation metrics of incentive mechanisms in the traditional federal learning become invisible.In this paper,we propose a hybrid privacy-preserving scheme for federated learning,called Fed-DFE.Specifically,we present a decentralized multi-client function encryption algorithm.It replaces the TTP in traditional function encryption with an interactive key generation algorithm,avoiding the problem of collusion.Then,an embedded incentive mechanism is designed for function encryption.It models the real parameters in federated learning and finds a balance between privacy preservation and model accuracy.Subsequently,we implemented a prototype of Fed-DFE and evaluated the performance of decentralized function encryption algorithm.The experimental results demonstrate the effectiveness and efficiency of our scheme.

关键词： Decentralized function encryption incentive mechanism differential privacy federated learning

维氏气单胞菌弱毒株FS12001及其疫苗对异育银鲫的免疫效果

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水产学报 2024年第5期48卷 204-216页

作者：王艳娇张德锋任燕王庆王英英李莹莹潘厚军石存斌莫绪兵尹纪元中国水产科学研究院珠江水产研究所广东省水产动物免疫与绿色养殖重点实验室农业农村部渔用药物创制重点实验室上海海洋大学水产与生命学院

为探究由维氏气单胞菌(Av)弱毒株FS12001制备的疫苗免疫效果，将Av弱毒株FS12001制备活疫苗、灭活疫苗、ISA763A-灭活疫苗和蜂胶-灭活疫苗，腹腔注射免疫异育银鲫，同时设ISA763A佐剂、蜂胶佐剂及0.65%NaCl作为对照组。于免疫后1、3、5... 详细信息

为探究由维氏气单胞菌(Av)弱毒株FS12001制备的疫苗免疫效果，将Av弱毒株FS12001制备活疫苗、灭活疫苗、ISA763A-灭活疫苗和蜂胶-灭活疫苗，腹腔注射免疫异育银鲫，同时设ISA763A佐剂、蜂胶佐剂及0.65%NaCl作为对照组。于免疫后1、3、5、7和14 d经实时荧光定量PCR (qRT-PCR)检测脾脏组织中IgM、IL-1β及LZM的基因表达量；于免疫后7、14、21、28、42和48 d尾静脉采血分离血清，检测IgM抗体水平，测定SOD和LZM酶活性；于免疫28 d后用2株Av强毒株分别攻毒各组实验鱼，连续观察记录7 d，计算各免疫组的相对保护率。结果显示，各免疫组脾脏组织中IgM、IL-1β及LZM的基因表达量高于对照组，且ISA763A-灭活疫苗组和蜂胶-灭活疫苗组的表达量显著高于其他各实验组。各疫苗免疫组血清特异性抗体水平均显著高于0.65%NaCl对照组和佐剂对照组。各疫苗免疫组的LZM活性均在28 d最高，灭活疫苗组、ISA763A-灭活疫苗组及蜂胶-灭活疫苗组SOD活性均在7 d最高。菌株AVCA07攻毒后，活疫苗组、灭活疫苗组、ISA763A-灭活疫苗组和蜂胶-灭活疫苗组的RPS分别为63%、56%、100%和56%；菌株YC170511攻毒后，以上4个免疫组RPS分别为59%、55%、93%和72%。研究表明，用弱毒株FS12001制备疫苗，注射免疫异育银鲫后均可增加脾脏中IgM、IL-1β及LZM的基因表达量，提高血清抗体水平，增强SOD和LZM酶活性，增强其抵抗Av感染的能力。

关键词：异育银鲫维氏气单胞菌弱毒株疫苗免疫效果

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大型钻探设备支承底盘焊接工艺优化研究

钻探工程 2024年第2期51卷 68-77页

作者：康红梅王继园黎杰李昌平殷国乐中国地质大学(武汉)机械与电子信息学院湖北武汉430074 中国地质科学院勘探技术研究所河北廊坊065000

大型支承底盘作为大型钻探设备的支承平台,通常由大量钢板通过焊接装配而成,焊接残余应力和残余变形会对底盘的强度和刚度产生一定的影响。本文运用有限元分析方法,选取高斯移动热源,针对大型支承底盘中具有代表性的T形焊接接头建立了... 详细信息

大型支承底盘作为大型钻探设备的支承平台,通常由大量钢板通过焊接装配而成,焊接残余应力和残余变形会对底盘的强度和刚度产生一定的影响。本文运用有限元分析方法,选取高斯移动热源,针对大型支承底盘中具有代表性的T形焊接接头建立了有限元模型,分别采用4种不同的焊接顺序和焊接速度,分析了其对焊接应力和变形的影响,得到了优化的焊接顺序和焊接速度。在此基础上,对底盘的整体焊接方案做出优化,对比分析了优化前后的焊接应力和变形,结果表明:优化后残余应力减少了约7%,最大变形减少了约26%。研究成果可为焊接工艺的制定提供参考。

关键词：大型钻探设备大型支承底盘有限元分析焊接工艺焊接残余应力焊接残余变形

三才配穴法埋线联合滋阴疏肝镇潜方对肝阳上亢型原发性高血压患者血管紧张素Ⅱ水平的影响

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上海针灸杂志 2024年第4期43卷 389-393页

作者：李孔正林秋意吴光龙张为梁基源黄基明广州中医药大学第八临床医学院佛山528000 广东省阳江市人民医院阳江529500

目的观察三才配穴法埋线联合滋阴疏肝镇潜方对肝阳上亢型原发性高血压患者血压、临床症状以及血清血管紧张素Ⅱ和肾素水平的影响。方法选取124例肝阳上亢型原发性高血压患者为研究对象,采用奇偶数分组法分为观察组(63例)和对照组(61例)... 详细信息

目的观察三才配穴法埋线联合滋阴疏肝镇潜方对肝阳上亢型原发性高血压患者血压、临床症状以及血清血管紧张素Ⅱ和肾素水平的影响。方法选取124例肝阳上亢型原发性高血压患者为研究对象,采用奇偶数分组法分为观察组(63例)和对照组(61例)。对照组予苯磺酸氨氯地平片联合滋阴疏肝镇潜方治疗,观察组在对照组口服药物治疗基础上联合三才配穴法埋线治疗。比较两组治疗前后中医证候积分、24 h平均血压和血压昼夜节律,观察两组治疗前后血清血管紧张素Ⅱ(angiotensinⅡ,AngⅡ)和肾素水平的变化。结果治疗后,两组24 h平均收缩压和舒张压以及中医证候积分均较治疗前降低(P<0.05),且观察组低于对照组(P<0.05)。治疗后,两组收缩压和舒张压昼夜节律明显改善(P<0.05),且观察组优于对照组(P<0.05)。治疗后,两组血清AngⅡ和肾素水平较治疗前降低(P<0.05),且观察组均低于对照组(P<0.05)。结论在口服苯磺酸氨氯地平片基础上,三才配穴法埋线联合滋阴疏肝镇潜方治疗肝阳上亢型原发性高血压可改善患者临床症状,降低血压,可能与抑制血清血管紧张素Ⅱ和肾素水平有关。

关键词：埋线针药并用配穴法原发性高血压肝阳上亢

Cropland redistribution to marginal lands undermines environmental sustainability

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National Science Review 2022年第1期9卷 66-78页

作者： Wenhui Kuang jiyuan Liu Hanqin Tian Hao Shi Jinwei Dong Changqing Song Xiaoyong Li Guoming Du Yali Hou Dengsheng Lu Wenfeng Chi Tao Pan Shuwen Zhang Rafiq Hamdi Zherui yin Huimin Yan Changzhen Yan Shixin Wu Rendong Li Jiuchun Yang yinyin Dou Wenbin Wu Liqiao Liang Bao Xiang Shiqi Yang Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences School of Geographical Sciences Fujian Normal University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Key Laboratory of Tibetan Environment Changes and Land Surface Processes Institute of Tibetan Plateau Research Chinese Academy of Sciences International Center for Climate and Global Change Research School of Forestry and Wildlife Sciences Auburn University School of Geography and Tourism Qufu Normal University Hubei Province’s Key Laboratory for Environment & Disaster Monitoring and Evaluation Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Royal Meteorological Institute of Belgium Key Laboratory for Resources Use & Environmental Remediation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences School of Resources and Environmental Economics Inner Mongolia University of Finance and Economics State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Public Administration and Law Northeast Agricultural University Institute of Ecology Chinese Research Academy of Environmental Sciences Faculty of Geographical Science Beijing Normal University College of Environment and Planning Henan University Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences

Cropland redistribution to marginal land has been reported worldwide;however,the resulting impacts on environmental sustainability have not been investigated sufficiently.Here we investigated the environmental impacts of cropland redistribution in China.As a result of urbanization-induced loss of high-quality croplands in south China(～8.5 t ha),croplands expanded to marginal lands in northeast(～4.5 t ha) and northwest China(～2.9 t ha) during 1990-2015 to pursue food security.However,the reclamation in these low-yield and ecologically vulnerable zones considerably undermined local environmental sustainability,for example increasing wind erosion(+3.47%),irrigation water consumption(+34.42%),fertilizer use(+20.02%) and decreasing natural habitats(-3.11%).Forecasts show that further reclamation in marginal lands per current policies would exacerbate environmental costs by 2050.The future cropland security risk will be remarkably intensified because of the conflict between food production and environmental sustainability.Our research suggests that globally emerging reclamation of marginal lands should be restricted and crop yield boost should be encouraged for both food security and environmental benefits.

关键词： cropland redistribution environmental sustainability marginal lands wind erosion irrigation water consumption

New Zircon U-Pb Ages of Mylonitic Granite in the Baluntai Area of the Central Tianshan Block and their Geological Implications

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Acta Geologica Sinica(English Edition) 2019年第4期93卷 1149-1151页

作者： TAO Zaili yin jiyuan CHEN Wen LI Dapeng CAI Keda XU Zhihua DU Qiuyi School of Earth Sciences and Resources China University of GeosciencesBeijing100083China Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China

Objective The central Tianshan block mainly consists of the Precambrian metamorphic basement,Ordovician–Silurian meta-sedimentary rocks and Carboniferous–Permian sedimentary rocks.

关键词： Pb Block Implications