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Fluid Dynamics & Materials Processing 2024年第2期20卷 383-400页

作者： Yongchun Liu Ni Qiao Yanli Yang Yanchun Li Chunxiao He siyang wang Chengcheng Liu Ruixia Lei wang Li Wenwen Gao College of Chemistry and Chemical Engineering FLUOBON Pilot Base of Chemical EngineeringLongdong UniversityQingyang745000China Qingyang Solid and Hazardous Waste Pollution Prevention and Control Management Center Qingyang745000China Gansu Qingluyuan Environmental Monitoring Co. Ltd.Qingyang745000China School of Chemistry and Chemical Engineering Shanxi Key Laboratory of Low Metamorphic Coal Clean UtilizationYulin UniversityYulin719000China

A silylated melamine sponge(SMS)was prepared by two simple steps,namely,immersion and dehydration of a melamine sponge coated with *** silylated structure of SMS was characterized by FT-IR(Fourier-transform infrared)spectroscopy,SEM(Scanning electron microscopy)and in terms of water contact *** oil-water absorption and separation capacities were measured by FT-IR and UV-visible *** experimental results have shown that oligomeric silanol covalently bonds by Si-N onto the surface of melamine sponge *** has shown superhydrophobicity with a water contact angle exceeding 150°±1°,a better separation efﬁciency with regard to diesel oil(by 99.31%(wt/wt%)in oil-water mixture and even up to 99.99%(wt/wt%)for diesel oil in its saturated aqueous ***,SMS inherited the intrinsicﬂame retardancy of the melamine *** general,SMS has shown superhydrophobicity,high porosity,excellent selectivity,remarkable recyclability,and better absorption capacity for various oils and organic solvents,and a high separation efﬁciency for oil in saturated aqueous solutions.

关键词： Methyltrichlorosilane silylated melamine sponge(SMS) superhydrophobicity absorption capacity oil-water separable efﬁciency ﬂame retardancy

Co-inoculation of Streptomyces salinarius and Bacillus halodurans Enhances the Biocontrol Effects Against Damping off of Pinus by Manipulating Rhizosphere Microbial Community

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Co-inoculation of Streptomyces salinarius and Bacillus halod...

中国植物病理学会2024年学术年会

作者： wang Haixia LI Chunli wang siyang FU Lin ZHU Chunyu School of Life Sciences Liaoning University

Damping-off is a worldwide disease in forest nurseries caused by Fusarium *** genera of Bacillus and Streptomyces are popularly used as the biological control agents for damping-off diseases ***,there are few reports involving the combined use of these two *** study aimed to screen the compatible interactive Bacillus *** Streptomyces *** control damping-off of pine seedlings,and to investigate the colonization ability of strains in plant rhizosphere and the effect of single and co-inoculation on soil microbiome by fluorescence quantitative PCR and high-throughput sequencing,*** vitro experiments showed that Streptomyces salinarius Lnu-12 and Bacillus halodurans Lnu-20 strongly inhibit the growth of *** and they are compatible with each *** biofilm and motility assays,the results suggested that the biofilm of Lnu-20 was significantly increased when co-cultured with Lnu-12,while Lnu-20 contributed to the migration of *** pot experiment indicated that co-inoculation of Lnu-12 and Lnu-20(12+20)displayed an improved control efficacy against damping off of pine seedlings compared with the single-inoculation of Lnu-12(12) and Lnu-20(20),as well as significantly promoted the growth of pine *** abundance of Lnu-12 and Lnu-20 was obviously higher and the abundance of *** was significantly reduced in the 12+20 treatment than 12 and 20 treatment in pine seedlings rhizosphere soil,***,co-inoculated treatment altered the composition and structure of the microbial community and enriched beneficial bacteria in rhizosphere soil compared with the single-inoculated *** conclusion,co-inoculation of *** Lnu-12 and *** Lnu-20 could effectively control the damping-off disease and promoted the growth of pine seedlings by colonizing the plant rhizosphere and manipulating microbial *** may provide theoretical guidance and technical support for t

关键词： pine seedlings damping-off co-inoculation microbial community

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隐私保护近邻检测研究

信息网络安全 2024年第6期24卷 817-830页

作者：李增鹏王思旸王梅泉城实验室济南250103 山东大学网络空间安全学院青岛266237

随着移动计算和物联网等新兴技术的飞速发展,基于位置的服务(Location Based Service,LBS)在人们日常生活中扮演着愈发重要的角色。许多应用(如移动交友)通过LBS获取、收集用户的精确位置,并通过执行距离计算来实现近距离用户发现等功... 详细信息

随着移动计算和物联网等新兴技术的飞速发展,基于位置的服务(Location Based Service,LBS)在人们日常生活中扮演着愈发重要的角色。许多应用(如移动交友)通过LBS获取、收集用户的精确位置,并通过执行距离计算来实现近距离用户发现等功能。然而,LBS在为用户带来便利的同时,也使其面临着泄露隐私位置信息的风险。目前,大多数LBS应用均以明文形式记录用户精确位置,极易泄露用户的位置和移动模式等信息。此外,现有的能够保护用户隐私位置数据的研究工作存在一些缺陷,如通信开销高、通信时间长或计算安全性不足等。因此,文章提出一种保护用户位置隐私的高效近邻检测方法,该方法基于B/FV(Brakerski/Fan-Vercauteren)同态加密构造优化的圆范围内的隐私保护近邻检测协议。与现有的工作相比,文章方案使用基于格的加密,且具有较优的通信性能。此外,文章实现了基于B/FV同态加密的方案原型系统,并给出在具有高隐私保护要求和低算术速度限制的场景中的潜在应用,通过对该原型系统的实验结果表明,该方案在实际部署应用中具有广阔的应用前景。

关键词：基于位置的服务隐私保护近邻检测同态加密基于格的加密

“5W”理论视角下洛阳海神乐的传播策略研究

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新闻研究导刊 2024年第7期15卷 117-119页

作者：王思阳洛阳理工学院智能制造学院河南洛阳471023

洛阳海神乐源于周,作为宫廷乐相传,五代后传入洛阳民间。洛阳海神乐作为洛阳民间音乐类非物质文化遗产的典型代表,在社会不断变革的当下具有极高的传承价值和时代意义,要使其价值得以体现,须从传播入手,提升其传播力度和效果。根据拉斯... 详细信息

洛阳海神乐源于周,作为宫廷乐相传,五代后传入洛阳民间。洛阳海神乐作为洛阳民间音乐类非物质文化遗产的典型代表,在社会不断变革的当下具有极高的传承价值和时代意义,要使其价值得以体现,须从传播入手,提升其传播力度和效果。根据拉斯韦尔“5W”传播理论,其双向性和交互性的传播过程优势能为洛阳海神乐的传承发展提供更多思路。文章从传播学视角出发,基于“5W”传播理论,采用文献研究、内容分析、实地调研等方法,分析洛阳海神乐在传者、信息、媒介、受众和效果五个方面的传播现状,发现其存在传播主体单一、不够活跃,传播内容缺乏创新,传播渠道匮乏,传播受众积极性低,传播效果不理想等发展困境,从而提出传播主体共同发力,丰富优化传播内容、构建独特的内容体系,采用协同传播、拓展传播渠道,分众传播、满足传播受众的情感需求,重视传播效果分析、构建受众反馈机制,加强高校阵地的吸纳与传播等传播发展策略。文章旨在为洛阳海神乐在当下融媒体背景下的传播和发展积累经验,以提高洛阳海神乐的传播发展水平,使河洛非物质文化遗产焕发新的活力,增强洛阳文化自信,实现中国传统文化的可持续发展。

关键词： “5W”传播理论融媒体非物质文化遗产洛阳海神乐传播发展

种子植物不同毛被和质地的叶片制备改进方法研究

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西部林业科学 2024年第3期53卷 110-116页

作者：位文娜王思扬刘孟奇河南中医药大学药学院河南郑州450046 河南省豫药全产业链研发协同创新中心河南郑州450046

为了改进一种适用于毛被特征和质地均不同的叶表皮特征观察的种子植物叶表皮制片方法,选择具有纸质叶和革质叶代表性的6种种子植物为研究材料,在稀硝酸和冰醋酸混合物中浸泡并搅拌使叶表面毛被(或鳞片)脱离,然后在冰醋酸和双氧水混合物... 详细信息

为了改进一种适用于毛被特征和质地均不同的叶表皮特征观察的种子植物叶表皮制片方法,选择具有纸质叶和革质叶代表性的6种种子植物为研究材料,在稀硝酸和冰醋酸混合物中浸泡并搅拌使叶表面毛被(或鳞片)脱离,然后在冰醋酸和双氧水混合物中分离上、下表皮,再用乳酸透明后用1%番红染色,封片后用光学显微镜观察叶表皮特征,并将其与扫描电镜特征比较分析。结果显示:(1)数码相机拍照观察叶上表面可看出,2种质地6种植物叶片上表面均比较光滑,无毛或无明显的毛被;体视显微镜观察叶下表面可看出,薄荷叶和车前叶都较为平整无非腺毛,野艾蒿叶密被蛛丝状绒毛,胡颓子叶密被鳞片,山楂叶可以看到各级网脉,枸骨叶可以看到“黑点”状的下陷气孔。(2)改进叶表皮制片方法能有效去除纸质叶和革质叶叶表面的毛被或鳞片,并分离出上、下表皮,能够清晰观察到扫描电子显微镜下观察不到的叶表皮特征,包括表皮细胞形状、垂周壁式样、腺毛和气孔类型等。(3)对于角质层厚的革质叶和毛被(或鳞片)厚重的纸质叶或革质叶,扫描电子显微镜分辨率高,可以清晰观察到角质层或蜡质层颗粒和毛被或鳞片的纹理,但无法观察表皮细胞垂周壁式样和气孔类型;光学显微镜可以观察到表皮细胞垂周壁式样、气孔类型、毛被类型等特征,但无法观察到角质层或蜡质层颗粒和毛被或鳞片的纹理。可得结论:叶表皮制片新方法可以较好地分离纸质叶和革质叶的上、下表皮,从而获得理想的叶表皮制片,能够清晰观察叶表皮特征。

关键词：叶表皮制片方法光学显微镜扫描电子显微镜

Generalized F-Test for High Dimensional Regression Coefficients of Partially Linear Models

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Journal of Systems Science & Complexity 2017年第5期30卷 1206-1226页

作者： wang siyang CUI Hengjian School of Statistics and Mathematics Central University of Finance and EconomicsBeijing 100081China School of Mathematical Sciences Capital Normal UniversityBeijing 100048China

This paper proposes a test procedure for testing the regression coefficients in high dimensional partially linear models based on the F-statistic. In the partially linear model, the authors first estimate the unknown nonlinear component by some nonparametric methods and then generalize the F-statistic to test the regression coefficients under some regular conditions. During this procedure, the estimation of the nonlinear component brings much challenge to explore the properties of generalized F-test. The authors obtain some asymptotic properties of the generalized F-test in more general cases,including the asymptotic normality and the power of this test with p/n ∈(0, 1) without normality assumption. The asymptotic result is general and by adding some constraint conditions we can obtain the similar conclusions in high dimensional linear models. Through simulation studies, the authors demonstrate good finite-sample performance of the proposed test in comparison with the theoretical results. The practical utility of our method is illustrated by a real data example.

关键词： Generalized F-test high dimensional regression partially linear models power of test.

北部湾盆地涠西南凹陷咸水层CO_(2)地质封存储盖优选及潜力评估

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煤炭学报 2024年第5期49卷 2405-2413页

作者：熊鹏飞方小宇乐文喜陆江王思洋杨浦王凯郭俊阳南方海洋科学与工程广东省实验室(湛江) 广东湛江524000 中国地质大学(武汉)环境学院湖北武汉430074

CO_(2)地质封存被认为是实现碳中和目标的兜底技术,近海沉积盆地远离人类活动区,在实施CO_(2)地质封存方面相比于陆上沉积盆地更具优势。为查明广东省近海北部湾盆地涠西南凹陷咸水层CO_(2)封存潜力,基于盖层埋深、单层泥岩最大厚度、... 详细信息

CO_(2)地质封存被认为是实现碳中和目标的兜底技术,近海沉积盆地远离人类活动区,在实施CO_(2)地质封存方面相比于陆上沉积盆地更具优势。为查明广东省近海北部湾盆地涠西南凹陷咸水层CO_(2)封存潜力,基于盖层埋深、单层泥岩最大厚度、泥地比、断层密度和储层孔隙度、地层厚度、砂地比、渗透率等8个指标,构建了盆地二级构造单元的储盖评价体系,结合各地层岩心物性资料和三维地质模型,对涠西南凹陷储盖进行优选,并以US-DOE法对有效封存潜力进行了评估。研究结果表明,涠西南凹陷在海底以下800~3000 m内,有2套适宜CO_(2)封存的储盖组合。储盖组合1:新近系角尾组一段浅海相泥岩盖层−角尾组二段、下洋组滨浅海相砂岩储层,有效封存容量为7.49亿t;储盖组合2:古近系涠洲组二段中深湖泥岩盖层−涠洲组三段砂岩储层,有效封存容量为3.74亿t。在涠西南凹陷中优选出2套适宜咸水层封存CO_(2)的储盖组合,有效封存容量为11.23亿t,按照广东省粤西地区CO_(2)年排放量为7000万t进行评估,能够满足该地区超16 a的CO_(2)减排需求。

关键词：离岸封存 CO_(2)地质封存潜力储盖组合优选涠西南凹陷北部湾盆地

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储罐内加热盘管腐蚀原因及改进建议

腐蚀与防护 2024年第5期45卷 105-108页

作者：王思杨杨玉峰周洋高博颢中国石油大学(北京)新能源与材料学院北京102249 国家管网集团科学技术研究总院分公司廊坊065000 国家管网集团北方管道有限公司廊坊065000

针对原油储罐加热盘管腐蚀泄漏频发现象,分析了储罐底部加热盘管腐蚀失效的原因。另外,针对加热盘管外部防腐蚀涂料选择难题,通过盐雾腐蚀试验模拟储罐内加热盘管的服役工况,研究了盐雾腐蚀后环氧树脂、无机富锌和聚氨酯三种防腐蚀涂层... 详细信息

针对原油储罐加热盘管腐蚀泄漏频发现象,分析了储罐底部加热盘管腐蚀失效的原因。另外,针对加热盘管外部防腐蚀涂料选择难题,通过盐雾腐蚀试验模拟储罐内加热盘管的服役工况,研究了盐雾腐蚀后环氧树脂、无机富锌和聚氨酯三种防腐蚀涂层的表观形貌、表面粗糙度及腐蚀速率。结果表明:相对于聚氨酯涂层、无机富锌涂层,环氧树脂涂层的表面更光滑,表面粗糙度和腐蚀速率数据更低,分别为5.9 nm和9μm/a,该涂层更适合作为加热盘管防腐蚀涂层,可延长加热盘管的使用寿命,保障储罐的安全高效运营。

关键词：储罐加热盘管腐蚀防腐蚀涂层

Experimental Investigation on Heat Transfer Characteristics of Water in Inclined Downward Tube of a Supercritical Pressure CFB Boiler

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Journal of Thermal Science 2015年第5期24卷 478-487页

作者： wang siyang YANG Dong XIE Beibei wang Long wang Yongjie State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University

In this study, experiments have been performed for an investigation on heat transfer of water in an inclined downward tube with an inner diameter of 20 mm and an inclined angle of 45° from the horizon, with the range of pressure from 11.5 to 28 MPa, mass flux from 450 to 1550 kg/(m2 s), and heat flux from 50 to 585 k W/m2. Based on the experimental data, the temperature distribution in the tube wall was derived. The heat transfer characteristics of inclined downward flow were compared with that of vertical downward flow. The effects of heat flux on wall temperature were analyzed and the corresponding empirical correlations were presented. The results show that heat transfer characteristics of water in the inclined downward tube are not uniform along the circumference from the top surface to the bottom surface. An increase in heat flux exacerbates the non-uniformity. At subcritical pressures, both dry-out and departure from nucleate boiling(DNB) occur at the top surface of the inclined downward tube; inversely, only dry-out takes place on the bottom surface of the inclined downward tube and in the vertical downward tube. At near-critical pressures, DNB and dry-out occur in the comparing tubes with greater possibility. At supercritical pressures, heat transfer gets enhanced in the pseudo-critical enthalpy region; in the high enthalpy region, the top surface temperature of the inclined downward tube decreases obviously.

关键词： inclined downward tube wall temperature circumferential non-uniformity heat transfer deterioration

Sieve M-estimator for a semi-functional linear model

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Science China Mathematics 2015年第11期58卷 2421-2434页

作者： HUANG LeLe wang HuiWen CUI HengJian wang siyang School of Economics and Management Beihang University School of Mathematical Sciences Capital Normal University School of Statistics and Mathematics Central University of Finance and Economics

We propose sieve M-estimator for a semi-functional linear model in which the scalar response is explained by a linear operator of functional predictor and smooth functions of some real-valued random *** estimators of the functional coefficient and the smooth functions are considered,and by selecting appropriate knot numbers the optimal convergence rate and the asymptotic normality can be obtained under some mild *** simulation results and a real data example are presented to illustrate the performance of our estimation method.

关键词： functional linear model sieve estimator spline knot number convergence rate