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酸浸钢渣制备磁性絮凝剂及其在油田废水处理中的应用

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湖南师范大学自然科学学报 2024年第4期47卷 90-96页

作者：蒋成银孟海龙蒋崇珊杨建兴李桂菊张陈德王思远中国石油长庆油田分公司第三采气厂中国乌审旗017300 天津科技大学海洋与环境学院中国天津300457

通过酸浸法处理炼钢厂废料,经过水解和聚合反应制成一种磁性絮凝剂,可实现资源再利用。X射线衍射分析显示,该絮凝剂主要成分是γ-Fe_(2)O_(3),红外谱图和Zeta电位分析证实其为无机高分子混凝剂,其主要絮凝机理为吸附电中和。研究发现,... 详细信息

通过酸浸法处理炼钢厂废料,经过水解和聚合反应制成一种磁性絮凝剂,可实现资源再利用。X射线衍射分析显示,该絮凝剂主要成分是γ-Fe_(2)O_(3),红外谱图和Zeta电位分析证实其为无机高分子混凝剂,其主要絮凝机理为吸附电中和。研究发现,制备过程中熟化时间对铁离子形态转化有显著影响,经过5天熟化制备的产品中Fe(b)含量最高,絮凝效果最佳。在应用实验中以长庆油田苏里格气田采出液为研究对象,该絮凝剂的适用pH范围为7~11,最佳投加量为0.3~0.4 g/L。实验结果显示,该絮凝剂使浊度去除率高达99%以上,COD去除率达64%以上。与市场上常用的聚合氯化铝相比,其沉降速度更快,下层絮体体积更小,性能优异,应用前景广阔。

关键词：磁性絮凝剂资源再用沉降性能油田废水

Adhesive Contact of Elastic Solids with Self-Affine Fractal Rough Surfaces

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Acta Mechanica Solida sinica 2024年第2期37卷 265-270页

作者： Xuan-Ming Liang Shi-Wen Chen si-He wang Zhen-yuan Gong Jun Feng Gang-Feng wang Department of Engineering Mechanics SVL and MMMLXi’an Jiaotong UniversityXi’an710049China OPPO Mobile Telecommunications Corporation Ltd. Dongguan523860China

The elastic adhesive contact of self-affine fractal rough surfaces against a rigid flat is simulated using the finite element method. An array of nonlinear springs, of which the force-separation law obeys the Lennard–Jones potential, is introduced to account for the interfacial adhesion. For fractal rough surfaces, the interfacial interaction is generally attractive for large mean gaps, but turns repulsive as the gap continuously shrinks. The interfacial interactions at the turning point corresponding to the spontaneous contact are shown for various surfaces. For relatively smooth surfaces, the probability density distributions of repulsion and attraction are nearly symmetric. However, for rougher surfaces, the simulation results suggest a uniform distribution for attraction but a monotonously decreasing distribution with a long tail for repulsion. The pull-off force rises with increasing ratio of the work of adhesion to the equilibrium distance, whereas decreases for solids with a higher elastic modulus and a larger surface roughness. The current study will be helpful for understanding the adhesion of various types of rough solids.

关键词： Fractal rough surfaces Adhesion Contact mechanics Lennard-Jones potential

靶向心理干预对女性精神分裂症患者心理状态及服药依从性的影响

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实用医院临床杂志 2024年第4期21卷 79-83页

作者：高敏杨翠峰郭靖朱宝梅王思远刘云安徽省阜阳市第三人民医院精神科安徽阜阳236000

目的探讨以问题为导向实施靶向心理干预对女性精神分裂症患者心理状态及服药依从性的影响。方法选取2021年1月至2023年6月来我院就诊330例的女性精神分裂症患者,按照单双号法随机分为干预组和对照组各165例。干预组实施以问题为导向... 详细信息

目的探讨以问题为导向实施靶向心理干预对女性精神分裂症患者心理状态及服药依从性的影响。方法选取2021年1月至2023年6月来我院就诊330例的女性精神分裂症患者,按照单双号法随机分为干预组和对照组各165例。干预组实施以问题为导向实施靶向心理干预,通过分析患者个体的心理特征和问题根源,制定针对性的干预计划,对患者心理状态和行为进行干预,帮助其解决心理问题或提升心理健康水平;对照组予以常规心理干预,通过心理咨询、药物治疗等,帮助其更好地认识和应对自己的情绪,调节内心的焦虑和压力。在干预前、干预1个月后,比较两组患者的精神症状改善情况[简明精神病量表(BPRS)、症状自评量表(SCL-90)]、自我管理能力[自我护理能力测定量表(ESCA)]、社会功能[精神障碍患者社会功能缺损评定量表(SSFD-MD)]、心理状态[中文版卡尔加里精神分裂症抑郁量表(CDSS-C)、自我感受负担量表(SPBS)]、服药依从性[药物依从性量表(MARS)、药物信念问卷(BMQ)]。结果干预1个月后,两组患者BPRS、SCL-90、SSFD-MD、CDSS-C和SPBS评分均较干预前降低,且干预组低于对照组(P<0.05);两组ESCA、MARS和BMQ评分较干预前提高,且干预组高于对照组(P<0.05)。结论以问题为导向的靶向心理干预方法在女性精神分裂症患者的护理中具有显著的优势,通过改善患者的精神状态、自我管理能力和社会功能,提高患者心理状态和服药依从性,为患者重建健康的生活奠定坚实的基础。

关键词：心理干预女性精神分裂症患者心理状态服药依从性

Eco-Environmental Vulnerability Evaluation in the Yellow River Basin,China

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Pedosphere 2008年第2期18卷 171-182页

作者： wang si-yuan LIU Jing-Shi YANG Cun-Jian Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 （China） Institute of Electronics Chinese Academy of Sciences Beijing 100080 （China） Centre of RS and GIS Applications Sichuan Normal University Chengdu 610066 （China）

Using remote sensing(RS)data and geographical information system(GIS),eco-environmental vulnerability and its changes were analyzed for the Yellow River Basin,*** objective of this study was to improve our understanding of eco-environmental changes so that a strategy of sustainable land use could be *** environmental numerical model was developed using spatial principal component analysis(SPCA)*** model contains twelve factors that include variables of land use,soil erosion,topography,climate,and *** this model,synthetic eco- environmental vulnerability index(SEVI)was computed for 1990 and 2000 for the Yellow River *** SEVI was classified into six levels,potential,slight,light,medium,heavy,and very heavy,following the natural breaks classification. The eco-environmental vulnerability distribution and its changes over the ten years from 1990 to 2000 were analyzed and the driving factors of eco-environmental changes were *** results show that the eco-environmental vulnerability in the study area was at medium level,and the eco-environmental quality had been gradually improved on the ***,the eco-environmental quality had become worse over the ten years in some *** the study area,population growth,vegetation degradation,and governmental policies for eco-environmental protection were found to be the major factors that caused the eco-environmental changes over the ten years.

关键词： eco-environmental vulnerability geographic information system (GIS) remote sensing (RS) spatial principal component analysis Yellow River Basin

基于“肾虚、痰湿、血瘀”的现代生物学基础探讨强直性脊柱炎中医病机的科学内涵

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风湿病与关节炎 2024年第5期13卷 48-52页

作者：王思远阮艺涛陈进春邱明山福建中医药大学福建福州350108 福建中医药大学附属厦门市中医院福建厦门361000

强直性脊柱炎的中医病机关键是肾气亏虚,痰湿、血瘀为主要的致病因素。通过将现代生物学与中医病因病机相联系,得出导致强直性脊柱炎发病的肾虚、痰湿、血瘀的微观辨证特征,是涉及干细胞生成、水液代谢、血脂代谢、炎症反应、免疫调节... 详细信息

强直性脊柱炎的中医病机关键是肾气亏虚,痰湿、血瘀为主要的致病因素。通过将现代生物学与中医病因病机相联系,得出导致强直性脊柱炎发病的肾虚、痰湿、血瘀的微观辨证特征,是涉及干细胞生成、水液代谢、血脂代谢、炎症反应、免疫调节及血液流变学改变等多个病理变化的复杂过程,适用于中医多靶点、多系统的整体研究。将现代生物学与中医病因病机相联系,有助于认识疾病发生、发展机制,从多个方面阐明中医病机的科学内涵,为强直性脊柱炎的临床防治提供新的思路。

关键词：强直性脊柱炎肾虚痰湿血瘀病因病机微观辨证现代生物学

Hydrogen Therapy Reduces Oxidative Stress-associated Risks Following Acute and Chronic Exposure to High-altitude Environment

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Biomedical and Environmental Sciences 2015年第3期28卷 239-241页

作者： SHI Qing Hai WEI Wei RAN Ji Hua wang si yuan LIU Zheng Xiang GE Di CHEN Ping FU Jian Feng Clinical Laboratory and Diagnostic Center Urumqi General Hospital of Chinese PLA Central South University Xiangya Medical School

Low pressure,low oxygen concentration,and intense ultraviolet（UV）radiation in high-altitude environments,can cause oxidative stress which can trigger mountain sickness.A recent study demonstrated that hydrogen gas with a good permeability in biological membranes can treat various disorders by exerting its selective anti-oxidation and anti-inflammatory effects,indicating that hydrogen therapy plays a role in scavenging free radicals and in balancing oxidation and anti-oxidation systems of ceils. Therefore, we hypothesize that inhaling low-dose hydrogen or drinking hydrogen-saturated water is a novel and simple method to prevent and treat oxidative stress injury caused by low pressure, low oxygen concentration and intense UV radiation in plateaus, thus reducing the risk of mountain sickness.

关键词： altitude sickness permeability ultraviolet oxidative environments mountain intense saturated Hydrogen

Characteristics of life-cycle carbon dioxide emissions of arterial highway maintenance and the influencing factors

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Advances in Climate Change Research 2024年第4期15卷 751-765页

作者： Yao wang yuan-Qing wang Shu-Juan JI si-Jia SUN Shu-Hong MA Ya-Nan GAO Key Laboratory of Transport Industry of Management Control and Cycle Repair Technology for Traffic Network Facilities in Ecological Security Barrier Area Chang'an UniversityXi'an 710064China Guangzhou Aids to Navigation Office Southem Navigation Service CenterMaritime Safety AdministrationGuangzhou 51000China

With the focus of highway development transitioning from construction to maintenance,a comprehensive understanding of the characteristics and influencing factors of carbon dioxide(CO_(2))emissions from highway maintenance activities is crucial for formulating effective strategies to promote the low-carbon development of road ***,the quantitative relationships between CO_(2) emissions from highway maintenance schemes and factors such as pavement deterioration,traffic volume,and road grade remain unclear owing to a lack of compre-hensive,multi-category,and real *** real maintenance data from 340 arterial highway segments in China,this study conducts the life cycle assessment(LCA)to estimate CO_(2) emissions from maintenance activities and examines the primary emission sources among various structural layers and ***,multiple linear regression(MLR)analysis is conducted to investigate the impact of traffic volume,road grade,and pavement deterioration on CO_(2) emissions from maintenance projects,and factors influencing the early-stage degradation of pavement *** results demonstrate that average CO_(2) emissions from heavy rehabilitation projects are 6.97 times higher than those from medium rehabilitation *** from heavy rehabilitation projects exhibit a significantly negative linear relationship with the riding quality index(RQI)before maintenance(psions from medium rehabilitation projects show a significant negative linear relationship with the pavement condition index(PCI)before maintenance(psions from heavy and medium rehabilitation projects are significantly positively correlated with heavy vehicle traffic volume before maintenance(psignificantly negative linear relationships with their respective in-dicators before maintenance(p<0.05).The early-stage d

关键词： Life cycle assessment(LCA) Arterial highway Maintenance Emission factor Pavement performance Traffic volume

Robustness of the octupole collectivity in 144Ba within the cranking covariant density functional theory in 3D lattice

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Nuclear Science and Techniques 2024年第8期35卷 124-131页

作者： Ze‑Kai Li yuan‑yuan wang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

The octupole deformation and collectivity in octupole double-magic nucleus 144Ba are investigated using the Cranking covariant density functional theory in a three-dimensional lattice *** reduced B(E3)transition probability is implemented for the first time in semiclassical approximation based on the microscopically calculated electric octupole *** available data,including the I-ωrelation and electric transitional probabilities B(E2)and B(E3)are well ***,it is shown that the ground state of 144Ba exhibits axial octupole and quadrupole deformations that persist up to high spins(I≈24h).

关键词： Octupole collectivity Cranking covariant density functional theory Rotational spectrum Electric transitional probabilities

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纳米接触点的变化对磁涡旋核极性反转的控制

吉林师范大学学报（自然科学版） 2024年第1期45卷 76-79页

作者：李化南岳照聪李泰锐王思元闫东旭吉林师范大学物理学院吉林四平136000

通过微磁模拟的方法研究了纳米接触点的个数、尺寸以及位置对磁涡旋核极性反转的影响.模拟计算显示,与纳米接触点被设置在盘中央对比,如果纳米接触点被设置在偏离盘中央时,磁涡旋核极性反转的临界电流密度和反转时间都会大幅度减小.当... 详细信息

通过微磁模拟的方法研究了纳米接触点的个数、尺寸以及位置对磁涡旋核极性反转的影响.模拟计算显示,与纳米接触点被设置在盘中央对比,如果纳米接触点被设置在偏离盘中央时,磁涡旋核极性反转的临界电流密度和反转时间都会大幅度减小.当设置两个纳米接触点时,如果改变半径小的接触点的位置,则仅对临界反转电流密度有明显影响;如果改变的是半径大的接触点的位置,则对临界反转电流密度和反转时间都有影响.所有的模拟计算都显示纳米接触点的个数、尺寸以及位置均不影响磁涡旋核的反转速度.

关键词：磁涡旋极化电流极性反转