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三亚海洋环境试验站污损生物生态研究

中国腐蚀与防护学报 2024年第1期44卷 38-46页

作者：马士德陈新邰余任海滔韩文郭为民段继周中国科学院海洋研究所青岛266071 海南大学理学院海口570228 青岛东启机械设备有限公司青岛266071 中国船舶集团有限公司第七二五研究所三亚海洋环境试验站三亚572029 中国船舶集团有限公司第七二五研究所青岛分部青岛266101

三亚试验站的海水实验池中污损生物群落呈现物种少、密度低、个体小的特点,这与三亚自然海域及其他热带海域的情况差异较大。通过调查试验站污损生物生态分布特点,并对试验站水池结构、水质及灾害性水文气象进行了分析,表明由于试验水... 详细信息

三亚试验站的海水实验池中污损生物群落呈现物种少、密度低、个体小的特点,这与三亚自然海域及其他热带海域的情况差异较大。通过调查试验站污损生物生态分布特点,并对试验站水池结构、水质及灾害性水文气象进行了分析,表明由于试验水泥池结构改变了池内与池外自然海水的流动和交换状态,池内海水中叶绿素a及硝酸盐的浓度只有三亚湾的1/5~1/6;此外,风暴潮会在试验水池内产生高强度的冲刷,低潮位时曝晒对池壁产生较强的热效应,还存在持续5 h以上的强暴雨等极端自然灾害的侵害,这些因素导致水池水泥壁潮差区形成的污损生物群落中物种很少,都以能耐受极端环境的咬齿牡蛎为优势种,在全浸五年以上的表面无毒试板表面,也仅有稀少的管栖多毛类和厦门牡蛎附着。另外,非钝性黑色金属腐蚀率远大于在三亚其他海域的腐蚀率。本研究揭示天然海域中的人为设施会明显改变其中污损生物群落组成和结构,进而影响对材料防污性能及腐蚀过程的准确检测和评价结果。

关键词：三亚站海水试验池污损生物群落生态

水热法合成纳米MoS_(2)研究与应用进展

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中国材料进展 2024年第1期43卷 54-65页

作者：郭维敏李树昌闫发发张振威郑顺奇中国兵器科学研究院宁波分院浙江宁波315000

MoS_(2)是一种典型的二维过渡金属硫化物,广泛应用于润滑和催化领域。作为一种功能材料,纳米MoS_(2)的性能依赖于其表面的活性位点。因此,比表面积对其性能有很大影响。相比于其他合成方法,水热法合成的MoS_(2)纳米材料形貌规则,比表面... 详细信息

MoS_(2)是一种典型的二维过渡金属硫化物,广泛应用于润滑和催化领域。作为一种功能材料,纳米MoS_(2)的性能依赖于其表面的活性位点。因此,比表面积对其性能有很大影响。相比于其他合成方法,水热法合成的MoS_(2)纳米材料形貌规则,比表面积大,拥有丰富的活性位点。纳米MoS_(2)在储能、光催化、电催化析氢领域展现出良好的性能和应用前景。主要总结了近年来水热合成纳米MoS_(2)的研究进展,列举了纳米MoS_(2)在储能、光催化以及电催化析氢领域的一些案例,总结了纳米MoS_(2)的发展现状并对水热法合成纳米MoS_(2)的研究和前景进行了展望。

关键词： MoS_(2) 水热法纳米材料材料合成功能材料

基于聚合时空图卷积网络的多风场超短期风速预测

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电源学报 2024年第4期22卷 133-142页

作者：徐辰晓崔承刚郭为民杨宁刘备孟青叶上海电力大学自动化工程学院上海200090 润电能源科学技术有限公司郑州450052

在一定环境内区域风电场呈不规则分布的条件下,传统卷积神经网络预测方法无法体现出各区域风场的分布状态和影响关系,难以实现对风速的准确预测。针对此问题,采用图卷积网络进行特征建模,并根据多风场的拓扑结构和各区域风场风速的互相... 详细信息

在一定环境内区域风电场呈不规则分布的条件下,传统卷积神经网络预测方法无法体现出各区域风场的分布状态和影响关系,难以实现对风速的准确预测。针对此问题,采用图卷积网络进行特征建模,并根据多风场的拓扑结构和各区域风场风速的互相关系数建立连通图和权重矩阵。其次,依赖风场风速的时间动态特征,采用改进并列式卷积结构获取同一风场下多时间段的风速序列相关性。再次,利用风场风速的空间相关性和延时效应,采用二阶聚合方法将不同区域内风速的时空特征聚合。最后,经某区域风场数据验证表明,在0~4 h预测尺度下该方法在多风场超短期风速预测中具有提取时空特征并提升预测性能的效果。

关键词：风速预测聚合时空图卷积网络时空相关性

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邯郸广府太极文化品牌推广研究

当代体育科技 2024年第17期14卷 112-114页

作者：李敬勇李燕郭卫民邯郸学院体育学院河北邯郸056002 上海大学体育学院上海200444

根据太极拳在邯郸广府发展、保护与开发推广的现状,运用品牌及文化品牌理论,对邯郸广府太极文化进行品牌定位,提出了邯郸广府太极文化品牌推广的相关策略,目的是让更多国内外爱好者了解邯郸杨、武式太极拳运动发展动态,并来邯郸广府进... 详细信息

根据太极拳在邯郸广府发展、保护与开发推广的现状,运用品牌及文化品牌理论,对邯郸广府太极文化进行品牌定位,提出了邯郸广府太极文化品牌推广的相关策略,目的是让更多国内外爱好者了解邯郸杨、武式太极拳运动发展动态,并来邯郸广府进行交流学习。在向世界推广传播太极文化的同时,也能为邯郸文化产业及经济建设的快速发展创造更多有利条件。

关键词：邯郸太极文化现状品牌推广

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秘鲁Morococha斑岩-矽卡岩-浅成低温热液型矿床成矿地质特征与区域找矿方向

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地质通报 2024年第7期43卷 1158-1172页

作者：郭维民姚春彦曾敏杨宪涛王天刚刘君安中国地质调查局南京地质调查中心江苏南京210016 中国铜业集团有限公司云南昆明650041

秘鲁中部Morococha地区位于中安第斯秘鲁中新世成矿带,是全球最具代表性的世界级斑岩-矽卡岩型和浅成低温热液型成矿系统之一。系统总结了该区斑岩型、矽卡岩型、浅成低温热液型等多种铜钼铅锌银多金属矿化成矿作用特征和最新的研究进展... 详细信息

秘鲁中部Morococha地区位于中安第斯秘鲁中新世成矿带,是全球最具代表性的世界级斑岩-矽卡岩型和浅成低温热液型成矿系统之一。系统总结了该区斑岩型、矽卡岩型、浅成低温热液型等多种铜钼铅锌银多金属矿化成矿作用特征和最新的研究进展,结合区域岩浆-热液成矿作用过程,提出了下一步找矿方向。Morococha矿区位于秘鲁中部Yali穹隆北段,由中心部位的Toromocho斑岩型铜钼矿床及外围铅锌银金多金属矿脉组成。区内主要构造为北西向Morococha背斜,地层主要为二叠纪—三叠纪Mitu群火山碎屑岩、侏罗纪Pucara群碳酸盐岩、早白垩世Goyllarisquizga群海相碎屑岩和碳酸盐岩。矿区中新世岩浆活动主要为中中新世不含矿的闪长质侵入岩(14.3~14.1 Ma)和晚中新世与成矿有关的花岗闪长岩和长石斑岩岩株(9.4~7.7 Ma)。Morococha岩浆-热液系统(8.5~7.2 Ma)是其形成超大型斑岩型铜矿成矿的原因之一,铅锌银多金属矿化主要发生在斑岩型矿化之后约0.5 Ma,受区域构造控制。矿床在空间上显示出明显的金属分带特征,中心斑岩区域为富铜矿石,而远离斑岩区出现更多的富铅锌银矿石。秘鲁中部中新世成矿带分布着众多具有重要经济价值的脉状热液型铅锌银多金属矿床,总结近年来综合地质调查和研究成果,表明这些多金属矿床都属于斑岩-矽卡岩成矿系统的一部分,因此斑岩-矽卡岩型铜矿床及浅成低温热液型贵金属矿床是秘鲁中部重要的找矿方向。

关键词：斑岩型铜钼矿床铅锌银多金属矿床成矿作用秘鲁

Pitting corrosion of 2Cr13 stainless steel in deep-sea environment

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Journal of Materials Science & Technology 2021年第5期64卷 187-194页

作者： Xinhua Wang Lin Fan Kangkang Ding Likun Xu weimin guo Jian Hou Tigang Duan State Key Laboratory for Marine Corrosion and Protection Luoyang Ship Material Research InstituteQingdao 266237China

Pitting corrosion of 2Cr13 stainless steel was investigated by deep-sea exposure test at various depths of 500 m,800 m and 1200 m in the South China Sea for 4 *** the aid of electrochemical measurements in simulated deep-sea environments and grey relational analysis,the influence of deepsea environments on passive film and the mechanism of pitting corrosion were *** results indicated that with the increase of sea depth,pitting depth of 2Cr13 stainless steel increased,which can be attributed to the change of chemical composition and the degradation of pitting resistance of passive *** growth was greatly retarded in the condition of low seawater temperature and low dissolved oxygen content of deep sea,resulting in an unstable and vulnerable *** depth was most influenced by hydrostatic pressure,which can increase the adsorption and penetration of Cl-ion,and promote the proliferation of point defects in passive film,leading to rapid deconstruction of protective oxides of the *** sensitivity of 2Cr13 stainless steel increased eventually with the combination of accelerated dissolution and suppressed self-healing of passive film in deep sea.

关键词： Stainless steel Deep sea Pitting corrosion Passive film Grey relational analysis

Temperature sensitivity of organic compound destruction in SCWO process

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Journal of Environmental Sciences 2014年第3期26卷 512-518页

作者： Yaqin Tan Zhemin Shen weimin guo Chuang Ouyang Jinping Jia Weili Jiang Haiyun Zhou School of Environmental Science and Engineering Shanghai Jiao Tong University Jiangsu Key Laboratory of Environmental Engineering Jiangsu Provincial Academy of Environmental Science

To study the temperature sensitivity of the destruction of organic compounds in supercritical water oxidation process （SCWO）, oxidation effects of twelve chemicals in supercritical water were investigated. The SCWO reaction rates of different compounds improved to varying degrees with the increase of temperature, so the highest slope of the temperature-effect curve （/max） was defined as the maximum ratio of removal ratio to working temperature. It is an important index to stand for the temperature sensitivity effect in SCWO. It was proven that the higher imax is, the more significant the effect of temperature on the SCWO effect is. Since the high-temperature area of SCWO equipment is subject to considerable damage from fatigue, the temperature is of great significance in SCWO equipment operation. Generally, most compounds （/max 〉 0.25） can be completely oxidized when the reactor temperature reaches 500~C. However, some compounds （/max 〉 0.25） need a higher temperature for complete oxidation, up to 560~C. To analyze the correlation coefficients between/max and various molecular descriptors, a quantum chemical method was used in this study. The structures of the twelve organic compounds were optimized by the Density Functional Theory B3LYP/6-311G method, as well as their quantum properties. It was shown that six molecular descriptors were negatively correlated to imax while other three descriptors were positively correlated to imax. Among them, dipole moment had the greatest effect on the oxidation thermodynamics of the twelve organic compounds. Once a correlation between molecular descriptors and imax is established, SCWO can be run at an appropriate temperature according to molecular structure.

关键词： supercritical water oxidation temperature molecular descriptorsdensity functional theory

Re-Os isotope dating of pyrite from the footwall mineralization zone of the Xinqiao deposit,Tongling,Anhui Province:Geochronological evidence for submarine exhalative sedimentation

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Chinese Science Bulletin 2011年第35期56卷 3860-3865页

作者： guo weimin LU JianJun JIANG ShaoYong ZHANG RongQing QI Liang State Key Laboratory for Mineral Deposits Research School of Earth Sciences and Engineering Nanjing University Nanjing 210093 China State Key Laboratory o fOre Deposit Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

The Xinqiao deposit is located in the Tongling area,Anhui *** deposit is dominantly composed of stratiform sulfide orebodies,which are restricted to the transitional zone from clastic rocks to carbonates at the base of the Late Carboniferous Huanglong *** are discordant veinlets or networks of mineralization in the footwall rocks below the stratiform sulfide *** underlying discordant mineralization zones coexist with conformable stratiform sulfide orebodies,which are considered to be the most representative features of massive sulfide deposits formed by submarine exhalative *** study reports a pyrite 187Re-187Os isotopic age of 319±13 Ma(MSWD=16) for the footwall mineralization *** isochron age is consistent with the interval of strata hosting the conformable stratiform sulfide orebody,and provides direct geochronological evidence for Carboniferous exhalative sedimentary mineralization.

关键词：海底喷流沉积同位素年代学矿化带同位素定年下盘安徽铜陵新桥证据

Underoil superhydrophilic flame-retardant 3D porous composite for efficient on-demand emulsion separation:Interface engineering design on sphagnum moss

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Friction 2024年第10期12卷 2222-2240页

作者： Yuyan guo Peng LIU Wenhao ZHANG Zhiguang guo weimin LIU Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan 430062China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China

Oil pollution and the energy crisis make oil-water separation an urgent for human *** widespread use of materials with a single emulsion separation capability is *** on-demand separation materials can adapt to a wide range of application scenarios,thus having a wider range of *** underoil superhydrophilic surface is of great significance for realizing the on-demand separation of oil/water emulsions through the removal of water in the oil and oil in the water.A 3D porous emulsion separation material based on the superhydrophilic principle of sphagnum moss was *** material was prepared in a simple step by taking advantage of the adhesion of polydopamine and the introduction of the as-prepared superhydrophilic BaSO4 nanoparticles to achieve superhydrophilicity with a water contact angle(WCA)of 0°and an oil contact angle(OCA)of 157.3°,resulting in excellent separation performance for both water-in-oil and oil-in-water *** superhydrophilic porous composite(OSPC)can complete two kinds of emulsion separations by filtration or *** adsorbs water from water-in-oil emulsion to achieve separation,with a good adsorption capacity of 74.38 g/g and efficiency up to 99%.It can also filter oil-in-water emulsions with an efficiency of 99.92%.The separation efficiencies are all almost unchanged after ten separation ***,the material has excellent flame retardancy,which reduces the possibility of secondary *** three-dimensional porous sponge has excellent on-demand separation performance for multiple *** provides a new preparation strategy for underoil superhydrophilic materials and a new idea for the design direction of special wetting materials for the on-demand separation of oil/water emulsions.

关键词： on-demand emulsion separation porous absorption filtration underoil hydrophilicity superwettability