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天贝豌豆多肽饼干的制备

当代化工研究 2024年第7期 182-184页

作者：刘定坤徐艺怀玉芦海成李毓滦高云辽宁科技大学化学工程学院辽宁114051

旨在开发一种添加有天贝粉、豌豆多肽、木糖醇、罗汉果糖的低糖保健饼干,通过单因素和正交试验,研究了天贝粉、木糖醇、罗汉果糖、黄油的用量对天贝豌豆多肽饼干品质的影响。结果表明:饼干的最优配方为低筋面粉100 g,天贝粉15 g,豌豆多... 详细信息

旨在开发一种添加有天贝粉、豌豆多肽、木糖醇、罗汉果糖的低糖保健饼干,通过单因素和正交试验,研究了天贝粉、木糖醇、罗汉果糖、黄油的用量对天贝豌豆多肽饼干品质的影响。结果表明:饼干的最优配方为低筋面粉100 g,天贝粉15 g,豌豆多肽1 g,木糖醇20 g,黄油25 g,罗汉果糖2 g,鸡蛋液25 g;水分含量为2.84%,酸价为1.52 mg/g,过氧化值为0.18 g/100 g。

关键词：天贝豌豆多肽木糖醇罗汉果糖饼干

云南省 “十四五 ”自然资源规划中期实施情况及对策建议

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云南地质 2024年第1期43卷 1-5页

作者：易丙红卢玉喜李宾陈建保张令泽云南省地质调查院昆明650216 云南省国土资源规划设计研究院昆明650216 云南省地质环境监测院昆明650216

《云南省“十四五”自然资源规划》对促进云南省自然资源合理开发利用,提升自然资源要素保障能力具有重要意义,本文梳理总结规划实施取得的成效及主要目标指标完成情况,存在的问题与不足,结合当前形势及风险挑战对规划后半程实施提出对... 详细信息

《云南省“十四五”自然资源规划》对促进云南省自然资源合理开发利用,提升自然资源要素保障能力具有重要意义,本文梳理总结规划实施取得的成效及主要目标指标完成情况,存在的问题与不足,结合当前形势及风险挑战对规划后半程实施提出对策建议,确保规划目标任务如期完成,推进规划顺利实施提供参考。

关键词：中期实施情况对策建议 “十四五”自然资源规划云南省

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机器学习在水务行业中的应用现状与发展前景

水电能源科学 2024年第3期42卷 43-48页

作者：李思敏产青青金鑫杨晶路恒通张家旋碗莹杨一帆河北工程大学能源与环境工程学院河北邯郸056038 河北工程大学河北省水污染控制与水生态修复技术创新中心河北邯郸056038 河北工程大学水利水电学院河北邯郸056038 邯郸市市政排水管理处河北邯郸506000 重庆大学计算机学院重庆400044

机器学习是人工智能领域的主流算法,近年来水务行业的数据量呈指数级增加,以机器学习为主流算法的人工智能技术在水务行业中的应用逐步得到拓展。综述了机器学习在我国水务行业中的应用现状与发展前景。目前机器学习凭借其强大的数据挖... 详细信息

机器学习是人工智能领域的主流算法,近年来水务行业的数据量呈指数级增加,以机器学习为主流算法的人工智能技术在水务行业中的应用逐步得到拓展。综述了机器学习在我国水务行业中的应用现状与发展前景。目前机器学习凭借其强大的数据挖掘能力在水资源优化调度、水处理厂运维、管网运维及城市雨洪管理方面具有较为广泛的应用,在水务信息化和数据资源深度挖掘与整合利用方面做出了突出贡献。未来机器学习能够助力双碳背景下污水厂提标改造,持续推动水务信息数字化向智能化转型。

关键词：机器学习水务行业智慧水务人工智能算法

基于健康生态学模型的农村老年人主观认知下降影响因素分析

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现代预防医学 2024年第13期51卷 2406-2410+2428页

作者：王嘉璐徐林燕邹继华姚远杨灏栋邬馨益陈卓琦朱徐乐丽水学院医学院

目的基于健康生态学模型，分析农村老年人主观认知下降（subjective cognitive decline,SCD）影响因素的作用路径和效应大小，以期为制定改善农村老年人SCD的干预措施提供参考。方法采取多阶段抽样和方便抽样法，以浙江省（宁波市、... 详细信息

目的基于健康生态学模型，分析农村老年人主观认知下降（subjective cognitive decline,SCD）影响因素的作用路径和效应大小，以期为制定改善农村老年人SCD的干预措施提供参考。方法采取多阶段抽样和方便抽样法，以浙江省（宁波市、绍兴市、湖州市、台州市）的595例农村老年人为研究对象进行问卷调查，采用多元线性逐步回归、结构方程模型分析农村老年人SCD的影响因素。结果 595例农村老年人SCD问卷21(SCD-Q21)总均分为（8.41±4.84）分。结构方程模型拟合结果显示，个人特质层（听力状况、看远处状况、看近处状况、高血压、是否握力下降）对SCD-Q21总分影响的总效应为0.634，直接效应为0.311，间接效应为0.323；行为与心理层（用药种数、体力活动水平、抑郁）对SCD-Q21总分影响的总效应和直接效应均为0.451，生活与工作条件层（受教育程度）对SCD-Q21总分影响的总效应和直接效应均为-0.120。结论农村老年人的主观认知水平有待改善，应针对影响因素制定相关干预措施，提高农村老年人的认知水平。

关键词：农村老年人主观认知下降健康生态学模型影响因素

Microstructural,magnetic and dielectric performance of rare earth ion(Sm^(3+))-doped MgCd ferrites

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Chinese Physics B 2022年第7期31卷 643-647页

作者： Dandan Wen Xia Chen Dasen luo yi lu yixin Chen Renpu Li Wei Cui Doctoral Research Station of Chongqing Key Laboratory of Optoelectronic Information Sensing and Transmission Technology Chongqing University of Post and TelecommunicationsChongqing 400065China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054China Chongqing Key Laboratory of Autonomous Navigation and Microsystem Chongqing University of Post and TelecommunicationsChongqing 400065China

The combined effects of Sm^(3+)substitution together with the addition of 3 wt%Bi_(2)O_(3)endow Mg Cd ferrites with excellent magnetic permeability and dielectric *** concentrations of Sm^(3+)(x=0,0.03,0.06,0.09,0.12and 0.15)were employed to modify the permeability(μ)and permittivity(ε)of the Mg Cd ferrites.X-ray diffraction,scanning electron microscopy(SEM),vibrating sample magnetometry and vector network analysis techniques were used to characterize the *** measurement results reveal that the ferrites processed a saturation magnetization of up to 36.8 emu/g and coercivity of up to 29.2 Oe via the conventional solid-state reaction *** surface morphology SEM confirms that with increasing Sm^(3+)concentration,the grain shape changes from a polygon to a ***,the dielectric permittivity can reach a value of *** excellent properties obtained in Sm^(3+)-substituted Mg ferrites suggest that they could be promising candidates for modern high-frequency antenna substrates or multilayer devices.

关键词： ferrites Sm^(3+)ions substitution magnetic permeability dielectric permittivity

Deformation features and failure mechanism of steep rock slope under the mining activities and rainfall

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Journal of Mountain Science 2017年第1期14卷 31-45页

作者： LI Zhi-qiang XUE yi-guo LI Shu-cai ZHANG Le-wen WANG Dan LI Bin ZHANG Wen NING Kai ZHU Jian-ye Research Center of Geotechnical and Structural Engineering Shandong University Resources Institute of GeomechanicsChinese Academy of Geological Sciences College of Construction Engineering Jilin University

Underground mining activities and rainfall have potential important influence on the initiation and reactivation of the slope deformations,especially on the steep rock slope. In this paper,using the discrete element method(UDEC),numerical simulation was carried out to investigate deformation features and the failure mechanism of the steep rock slope under mining activities and rainfall. A steep rock slope numerical model was created based on a case study at the Wulong area in Chongqing city,China. Mechanical parameters of the rock mass have been determined by situ measurements and laboratory measurements. A preliminary site monitoring system has been realized,aiming at getting structure movements and stresses of unstablerock masses at the most significant discontinuities. According to the numerical model calibrated based on the monitoring data,four types of operation conditions are designed to reveal the effect of mining excavation and extreme rainfall on the deformation of the steep rock slope.

关键词： Slope deformation Underground mining Discrete Element Method Site monitoring system

Iron-based biochar as efficient persulfate activation catalyst for emerging pollutants removal:A review

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Chinese Chemical Letters 2023年第11期34卷 74-81页

作者： Jinjie lu Qinwei lu lu Di yi Zhou Yanbo Zhou State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China School of Carbon Neutrality Future Technology East China University of Science and TechnologyShanghai 200237China

In recent years,biochar(BC)as a low-cost,easily available biomass product,is widely applied in sulfate radical-based advanced oxidation processes(SR-AOPs)for emerging pollutants ***,a state-of-art review of iron-based biochar catalysts is currently available in SR-AOPs application.A general summary of the development of biochar and the catalytic properties of biochar is ***,the synthetic strategies of different types of iron-based biochar catalysts are ***,the theoretical calculation to interpret the interaction between biochar and iron species is discussed to explore the activation *** the regeneration methods of biochar-based catalyst are *** unresolved challenges of the existent biochar-based SR-AOPs are pointed out,and the outlooks of future research directions are proposed.

关键词： Biochar Persulfate Emerging pollutants

Analysis of root fractal characteristics in remote areas of the Taklimakan desert,China

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Forestry Studies in China 2008年第2期10卷 67-73页

作者： YANG Xiao-lin ZHANG Xi-ming LI yi-ling LI Shao-cai SUN Hai-long Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 R R. China Graduate University of the Chinese Academy of Sciences Beijing 100039 P. R. China Sichuan Lizi Eco-technology Co. Ltd Chengdu 610031 E R. China

Fractal geometry is a potential new approach to analyze the root architecture, which may offer improved ways to quantify and summarize root system complexity as well as yield ecological and physiological insights into the functional relevance of specific architectural patterns. Fractal analysis is a sensitive measure of root branching intensity and fractal dimension expresses the ＂space filling＂ properties of a structure. The objective of this study was to find out the fractal characteristics of root systems in a remote area of the Taklimakan desert in China. The entire root system of two naturally occurring species were excavated and exposed with shov- els in 2007. The species were Tamarix taklamakanensis and Calligonum roborovskii. A one-factorial ANOVA with species as factor showed statistically a highly significant difference in fractal dimensions, indicating differences in their pattern of root branching. There was no relationship between root diameter and two parameters of fractal root models a and q, representing general characteris- tics of root systems, for either species （a： the ratio of the sum of root cross-sectional areas after a branching to the cross-sectional area before root division; q： the distribution of the cross-sectional areas after branching）. We have found significant linear relation- ships between the diameter after branching and root length and biomass respectively, because of the self-similarity of root branching. Branching rules are the same for roots of all sizes and lengths. Root biomass for the root systems of entire trees can be estimated by measuring the diameter of each root at the base of the trunk or the diameter after branching. We have shown that the diameter of each root at the base of the trunk and the diameter after branching are effective indices that can be measured easily in order to estimate the root lengths, biomass and other parameters of root architecture.

关键词： Taklimakan desert root architecture fractal dimension root length root biomass

不同调制周期TiAlN/VN多层膜的微观结构、力学和摩擦性能研究

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山西师范大学学报（自然科学版） 2024年第1期38卷 59-63页

作者：陆昆叶青青黄冠楠郑怡李友余滁州城市职业学院安徽滁州239000

为了研究调制周期对TiAlN/VN纳米结构多层膜结构和性能的影响,采用射频磁控溅射的方法,制备一系列不同调制周期对TiAlN/VN纳米结构多层膜.分别利用X射线衍射仪(XRD)、场发射扫描电子显微镜(SEM)、纳米压痕仪和摩擦磨损试验机对薄膜的相... 详细信息

为了研究调制周期对TiAlN/VN纳米结构多层膜结构和性能的影响,采用射频磁控溅射的方法,制备一系列不同调制周期对TiAlN/VN纳米结构多层膜.分别利用X射线衍射仪(XRD)、场发射扫描电子显微镜(SEM)、纳米压痕仪和摩擦磨损试验机对薄膜的相结构、截面形貌、硬度和摩擦学性能进行表征.研究结果表明:TiAlN/VN多层膜始终沿(111)面择优生长.随着调制周期的增加,多层膜的硬度表现为先增加后减小,调制周期6 nm时,多层膜硬度最高,为33.12 GPa,分析认为晶格错配引发的交变应力场是多层膜出现“超硬效应”的原因.室温条件下调制周期6 nm时多层膜平均摩擦系数最小,为0.3628;高温635℃时调制周期8 nm对应的多层膜平均摩擦系数最小,为0.2485.

关键词：磁控溅射 TiAlN/VN多层膜硬度摩擦性能