检索结果-南通市图书馆

湖南水口山矿田金矿控矿因素、成矿演化及成矿预测

在线全文

学校读者我要写书评

暂无评论

矿产与地质 2024年第2期38卷 207-218页

作者：陈平波桂祁零陈海龙莫平衡湖南省遥感地质调查监测所湖南长沙410015

水口山矿田是一大型金多金属矿田,其金资源储量达90 t。通过系统总结各金矿床地质特征,初步厘定金矿化期次,进而分析控矿因素,对成矿演化进行探讨,建立成矿模型,进行成矿预测。研究表明,区内金矿化与地层、倒转褶皱、断裂、花岗岩体关... 详细信息

水口山矿田是一大型金多金属矿田,其金资源储量达90 t。通过系统总结各金矿床地质特征,初步厘定金矿化期次,进而分析控矿因素,对成矿演化进行探讨,建立成矿模型,进行成矿预测。研究表明,区内金矿化与地层、倒转褶皱、断裂、花岗岩体关系密切。其中地层控矿主要表现为成矿层位赋存于当冲组、栖霞组层间破碎带或与岩体接触带中;构造控矿主要表现为背斜虚脱空间、层间破碎带、断裂带等是矿化富集的有利部位;岩浆岩控矿表现除岩体接触带控矿外,还有不同成因类型金矿围绕岩体呈分带现象,围绕岩体由地表到深部表现为氧化淋滤型独立型金矿—接触破碎独立型金矿—浅成低温热液独立型金矿—远距离热液充填交代伴生型金矿—接触交代伴生型金矿。金矿石沉淀与来自岩浆热液的成矿流体及大气降水引发的水岩反应、混合作用、沸腾作用有关,是成矿的主要3种机制。

关键词：金矿控矿因素矿化期次成矿演化找矿预测水口山湖南

Ferromagnetic element microalloying and clustering effects in high B_s Fe-based amorphous alloys

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2018年第5期34卷 793-798页

作者： pingbo chen Tao Liu Fengyu Kong Anding Wang Chunyan Yu Gang Wang Chuntao Chang Xinmin Wang Laboratory for Microstructures Institute of Materials ScienceShanghai University Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences School of Materials and Chemical Engineering Ningbo University of Technology College of Physics and Energy Shenzhen University

Fe83（Cox,Niy）（B11Si2P3C1）1-x,y/17（x,y=1–3）amorphous alloys with high saturation magnetic flux density（Bs）and excellent soft-magnetic properties were developed and then the microalloying and clustering effects were *** microalloying of Co and Ni improves the Bsfrom 1.65 T to 1.67–1.72 T and 1.66–1.68 T,*** Ni-doped alloys exhibit better soft-magnetic properties,containing a low coercivity（Hc） of about 5.0 A/m and a high Effective permeability（μe）of（8–10）×10^3,whereas the microalloying of Co leads to a deteriorative Hc of 5.0–13.0 A/m and a μeof（5–8）×10^***,microalloying of Ni can increase the ductile-brittle transition（DBT）temperature of the ribbons,while a totally opposite effect is found in the Co-doped *** formation of dense α-Fe（Co,Ni）clusters during annealing process is used to explain the distinct effects of Co and Ni microalloying on the magnetic properties and bending toughness.

关键词： Amorphous alloy Microalloying High Bs Domain structure Cluster

Development of soft magnetic amorphous alloys with distinctly high Fe content

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2017年第10期60卷 45-50页

作者： pingbo chen AnDing Wang chengLiang Zhao AiNa He Gang Wang ChunTao Chang XinMin Wang Chain-Tsuan Liu Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China Zhejiang Province Key Laboratory of Magnetic Materials andApplication Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China Laboratory for Mierostructures Institute of Materials Science Shanghai University Shanghai 200444 China Center for Advanced Structural Materials Department of Mechanical and Biomedical Engineering College of Science and Engineering City University of Hong Kong Hong Kong 999077 China

This paper reports on the preparation of Fe82.7-85.7Si2-4.9B9.2-11.2P1.***.2.7C0,8 soft magnetic amorphous alloys with a distinctly high Fe content of 93.5-95.5 wt.% by component design and composition adjustment. All alloys can be readily fabricated into completely amorphous ribbon samples with good surface quality by the single copper roller melt-spinning method. These alloys show good bending ductility and excellent magnetic properties after annealing, i.e., low coercivity （He） of 3.3-5.9 A/m, high permeability （μe） of 5000-10000 and high flux saturation density （Bs） of 1.63-1.66 T. The mechanism of the good glass forming ability （GFA）and soft-magnetic properties are explored. The amorphous alloys with the high Fe content comparable to that of the desired high Si alloy can be promising candidates for the potential application in electric devices.

关键词： metallic glasses alloy design annealing magnetic properties shear band

ERAS理念下人工髋关节置换术治疗股骨颈骨折合并尿毒症患者围手术期风险因素分析及处理

在线全文

学校读者我要写书评

暂无评论

皖南医学院学报 2024年第2期43卷 138-141页

作者：张银昌陈平波王超熊寿良李从明杨昕贺华正王强陶周善王雷皖南医学院第一附属医院弋矶山医院关节骨科安徽芜湖241001

目的:探讨加速康复(ERAS)理念下髋关节假体置换术在股骨颈骨折合并尿毒症患者中的疗效及安全性。方法:回顾分析2019年1月~2023年3月在弋矶山医院行人工髋关节置换术治疗股骨颈骨折合并尿毒症的18例患者,对患者进行围手术期的处理,记录... 详细信息

目的:探讨加速康复(ERAS)理念下髋关节假体置换术在股骨颈骨折合并尿毒症患者中的疗效及安全性。方法:回顾分析2019年1月~2023年3月在弋矶山医院行人工髋关节置换术治疗股骨颈骨折合并尿毒症的18例患者,对患者进行围手术期的处理,记录围手术期并发症情况,出院后门诊随访拍摄髋关节正位片并记录患者的疼痛视觉模拟评分法(VAS)评分、髋关节Harris评分及并发症等情况;同时选取20例同期行髋关节假体置换术的股骨颈骨折不合并尿毒症的患者作为对照组。结果:所有患者术后中位随访时间为16.1(3~36)月。合并尿毒症组男性占比较高、平均年龄更小、术前血红蛋白更低、围手术期输血率更高、住院时间更长(P0.05)。合并尿毒症组2例术后发生上消化道出血,1例出院后15 d发生关节假体脱位再次入院;两组患者末次随访时均未发生关节感染、假体松动、脱位、假体周围骨折等并发症。结论:通过围手术期的积极有效处理,ERAS理念下人工髋关节假体置换术治疗股骨颈骨折合并尿毒症患者效果满意。

关键词：股骨颈骨折尿毒症髋关节置换术围手术期透析并发症

在线全文

学校读者我要写书评

暂无评论

Profile of *** chen

Science China(Life Sciences) 2024年第10期67卷 2062-2063页

作者： chen, Songlin Yellow Sea Fisheries Res Inst Qingdao Peoples R China

For decades,*** has been engaged in fish germplasm preservation,sex control and research focusing on molecular breeding for disease *** discovered the first sex-specific molecular marker of fish(chen et al.,2007),deciphered the first fish genome(Chinese tongue sole)in China,revealed the sex determination mechanism in fish(chen et al.,2014),and created molecular sex control *** also discovered the molecular mechanism of metamorphosis in flatfish(Shao et al.,2017)and developed China's first fish disease-resistant breeding gene chip,“YUXIN No.1”.

关键词： technology breeding

Preparation of Ductile FeNbB Bulk Metallic Glass with Excellent Magnetic and Mechanical Properties after Annealing Optimization

在线全文

学校读者我要写书评

暂无评论

Preparation of Ductile FeNbB Bulk Metallic Glass with Excell...

Effect of Reclamation on the Groundwater-Lake Water Interaction in chen Lake

第十一届中国钢铁年会

作者： Gao Zhikai Wang Anding chen pingbo Li Fushan Chang Chuntao He Aina Wang Xinmin Liu Chain-Tsuan School of Materials Science and Engineering Zhengzhou University Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center for Advanced Structural Materials Department of Mechanical and Biomedical Engineering College of Science and Engineering City University of Hong Kong

Annealing induced magnetic and mechanical property changes for the FeNbB bulk metallic glass were systematically *** is interesting that this ternary alloy can combinedly exhibit outstanding magnetic and mechanical properties, especially good ductility, after optimally annealing in structure relaxation stage for eliminating the internal stress and homogenizing the *** alloy exhibits low coercive force of 1.6 A/m, high effective permeability of 15×10, high fracture strength of 4.2 GPa and good plastic strain of 1.8%.It is also found that the responses of mechanical and magnetic properties to structure relaxation are *** glass transition and crystallization will greatly deteriorate the magnetic and mechanical *** we propose a physical picture and demonstrate that the primary structure factors determining magnetic and mechanical properties are *** work will bring a promising material for application and a new perspective to study the effect of annealing induced structure relaxation on mechanical and magnetic properties.

关键词： bulk metallic glass annealing mechanical property magnetic property structure relaxation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Earth Science 2024年第3期35卷 1083-1086页

作者： Kun Lei Teng Ma Liuzhu chen Zhenxing Li Yu chen School of Environmental Studies State Key Laboratory of Biogeology and Environmental GeologyChina University of GeosciencesWuhan 430078China

0 INTRODUCTION To relieve the short supply of suitable land for residing,cultivating,and commerce,it is accepted to reclaim land from lakes,river estuaries,and coastal regions in many countries(Mancini et al.,2020).The large-scale reclamation activities have an irreversible effect on the mico-geomorphology and hydrodynamic system of seasonally flooded areas(Zhang et al.,2019;Yu et al.,2018).For example,coastal regions reclaimed extended the groundwater flow paths,as well as created groundwater level rise,resulting in water-logging in the reclaimed area(Hu et al.,2008).Similar changes in groundwater flow systems may alter groundwater-lake water interactions,and it can ultimately affect the water cycle in the lake ***,such detailed studies are presently *** addition,natural exchanges between the lake and groundwater systems can be strongly affected by physical hydrological processes(Javadzadeh et al.,2020),chemical properties(Kamtchueng et al.,2015),and bioto behavior(Hancock et al.,2005).

关键词： groundwater coastal logging

在线全文

学校读者我要写书评

暂无评论

植物细胞外信号分子eATP研究进展

植物学报 2014年第5期49卷 618-625页

作者：霍垲陆巍李霞陈平波南京农业大学生命科学学院南京210095 江苏省农业科学院粮食作物研究所江苏省优质水稻工程技术研究中心国家水稻改良中心南京分中心南京210014

细胞外ATP(extracellular ATP,eATP)是目前公认的细胞外信号分子,参与调控多种环境刺激下植物的生长、发育和防御反应。在植物细胞信号转导过程中,eATP具有双重功能,其作用主要取决于细胞外基质中eATP的浓度。eATP含量过高或者过低都会... 详细信息

细胞外ATP(extracellular ATP,eATP)是目前公认的细胞外信号分子,参与调控多种环境刺激下植物的生长、发育和防御反应。在植物细胞信号转导过程中,eATP具有双重功能,其作用主要取决于细胞外基质中eATP的浓度。eATP含量过高或者过低都会导致细胞死亡,适度水平的eATP则有助于植物的生长和发育。细胞外三磷酸腺苷双磷酸酶(Apyrase)严格控制细胞外基质中eATP的水平,因此有助于调控植物在逆境条件下的生长和防御反应。该文总结了植物中eATP的发现、产生和清除以及受体和信号转导等研究进展,重点论述eATP在逆境条件下的生理功能,并对植物eATP的研究方向作了展望。

关键词：钙信号细胞外ATP 一氧化氮活性氧

舒筋活血片联合玻璃酸钠治疗膝关节骨性关节炎临床效果及对滑膜液炎症因子的影响

在线全文

学校读者我要写书评

暂无评论

中药药理与临床 2017年第4期33卷 199-201页

作者：张耀武洪汉刚周瑜博陈平波新疆维吾尔自治区中医医院乌鲁木齐830000

目的:分析舒筋活血片联合玻璃酸钠治疗膝关节骨性关节炎临床效果及对滑膜液炎症因子的影响。方法:以我院2014年11月~2016年10月收治的126例膝关节骨性关节炎患者为研究对象,随机原则分为对照组和治疗组,各63例。两组均接受玻璃酸钠注射... 详细信息

目的:分析舒筋活血片联合玻璃酸钠治疗膝关节骨性关节炎临床效果及对滑膜液炎症因子的影响。方法:以我院2014年11月~2016年10月收治的126例膝关节骨性关节炎患者为研究对象,随机原则分为对照组和治疗组,各63例。两组均接受玻璃酸钠注射治疗,观察组另给予舒筋活血片治疗,分析两组的疗效和炎症指标变化以及安全性。结果:(1)观察组总有效率为90.48%,明显高于对照组71.43%。治疗后,观察组Lysholm膝关节评分、WOMAC评分和关节VAS评分分别为(85.24±6.01、28.59±4.29、2.19±0.55)分,均优于对照组(73.29±5.53、40.25±4.58、3.16±0.65)分。(3)治疗后,观察组滑膜液炎症因子IL-6、TNF-ɑ和hs-CRP水平分别为(112.5±18.5pg/ml、0.45±0.08μg/ml、6.16±1.73μg/ml),均明显低于对照组(141.0±22.4pg/m、0.63±0.09μg/ml、8.39±1.82μg/ml)。(4)治疗期间,观察组不良反应比例为1.59%,低于对照组6.35%,但组间差异无统计学意义。结论:舒筋活血片可提高膝关节骨性关节炎治疗效果,减轻炎症和疼痛感。

关键词：舒筋活血片玻璃酸钠膝关节骨性关节炎炎症因子