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内蒙古靠山屯银铅多金属矿综合找矿信息的提取及找矿前景

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世界地质 2017年第2期36卷 520-529页

作者：于长霞高福红张永胜纪元元何雨思吉林省地质科学矿产研究所长春130061 吉林大学地球科学学院长春130061

为了评价内蒙古靠山屯勘查区银铅多金属矿床找矿前景,对该勘查区进行了地质、航磁激电和化探综合找矿信息的提取。结果表明,靠山屯银铅多金属矿床是以银为主,伴生有铅和锌的中型矿床,产于早白垩世钾长花岗岩和晚侏罗世凝灰岩内。蚀变和... 详细信息

为了评价内蒙古靠山屯勘查区银铅多金属矿床找矿前景,对该勘查区进行了地质、航磁激电和化探综合找矿信息的提取。结果表明,靠山屯银铅多金属矿床是以银为主,伴生有铅和锌的中型矿床,产于早白垩世钾长花岗岩和晚侏罗世凝灰岩内。蚀变和矿化特征显示该矿床成因类型为中温热液脉型。上侏罗统玛尼吐组火山岩富含Pb、Ag等成矿元素,是有利的容矿围岩,产于火山岩和岩体接触带附近的断裂构造是有利的控矿构造,绢英岩化和硅化是近矿的围岩蚀变。成矿后区内存在差异性抬升,中部和北东部矿化以方铅矿和共伴生银矿物为主,矿床保存条件好,如Ⅱ和Ⅲ号蚀变带。南西部以闪锌矿(含黄铜矿)为主,矿床剥蚀较大,如Ⅰ号蚀变带,中高极化、低阻或中高阻、低-中高磁异常的物探异常总体为矿致异常的特征。Pb、Zn、Ag异常套合好,Pb和Ag异常面积大,强度高的异常KHt4-11分布区矿床保存条件较好,找矿前景较好。Zn异常面积大,外侧的Pb和Ag异常面积小的异常KHt1 KHt3分布区矿床剥蚀较大,找矿前景较差。

关键词：多金属矿床内蒙古矿床成因综合找矿信息找矿前景

Relationship between parenting stress and behavioral and emotional problems in preschool children: A mediation effect analysis

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World Journal of Psychiatry 2025年第1期15卷 128-136页

作者： Zhi-Wei fu yue-Jing Li Ran yu Rui-Qing Guo Li-xia Gao Sheng-xia Zhao Department of Children's Health Shijiazhuang Maternity and Child Healthcare HospitalShijiazhuang 050000Hebei ProvinceChina

BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age *** To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional *** We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September *** children and their parents were evaluated using a questionnaire ***'s correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating *** The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of *** paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.

关键词： Preschool children Parenting stress Children's behavioral and emotional problems Family rearing Mediating effect

Dynamic evolution of Co species and morphological reconstruction on Co-N-C during the nitrate reduction reaction in neutral solution

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Nano Research 2025年第1期18卷 164-172页

作者： yuanlin fu xiaoting Yang Ya yu Kang Zhou xiaoyang Ye Aoxiang Zhang xiaojiao Hou Bingbing Chen fuqiang Fan yuhang Li yu fu Department of Chemistry College of SciencesNortheastern UniversityShenyang 110819China Department of Physical Education Shen Yang Institute of Science and TechnologyShenyang 110167China Sungrow Power Supply Co. Ltd.Hefei 230088China

The electrochemical nitrate reduction reaction(eNO_(3)^(-)RR)is considered an effective approach for converting nitrate-containing wastewater to *** adsorption and activation of NO_(3)^(-)is the critical step for many materials and the high energy barrier inhibits the continuation of the reduction *** Co nanoparticles encapsulated in the carbon layer we prepared spontaneously react with NO_(3)^(-)and the resulting Co^(2+)is then reduced by electroreduction to Co^(0),which circulates *** resulted in overcoming the energy input required for NO_(3)^(-)adsorption and conversion,thereby increasing the catalytic *** the same time,the morphology of the catalyst reconstructed from a dodecahedron to an interwoven nanosheet structure and the increased surface area also gives it better *** obtained Co(OH)_(2)@Co-N-C has an excellent eNO_(3)^(-)RR of 2774.7μg·h^(-1)·cm^(-2)with a Faraday efficiency of 81.4%in neutral *** the same time,the material-modified electrode can run stably for more than 100 *** work provides a new idea for the design of Co-based catalysts for eNO_(3)^(-)RR.

关键词： electrochemical nitrate reduction reaction Co-based catalyst dynamic evolution of Co species morphological reconstruction

LO And:an A-subtype contact binary with a very cool third component

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Research in Astronomy and Astrophysics 2021年第5期21卷 179-190页

作者： Hui-Ping Huang yun-xia yu Ting yu Ke Hu fu-yuan xiang Key Laboratory of Stars and Interstellar Medium Xiangtan UniversityXiangtan 411105China Department of Physics Xiangtan UniversityXiangtan 411105China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China

Despite the intensive investigations since the discovery of LO And approximately 60 yr ago,its evolutionary status and subtype are still a matter of *** simultaneously modeling the radialvelocity curves and new light curves with the Wilson-Devinney code,we present new geometric,photometric and absolute parameters for this *** simultaneous solution suggests that LO And is an A-subtype contact binary with a contact degree of 32.4%.The absolute parameters are modified to become M_(1)=1.409 M⊙,M_(2)=0.449 M⊙,R_(1)=1.36 R⊙and R_(2)=0.83 R⊙.From our observations and data from surveys,we determined 334 eclipse *** O−C diagram,constructed from the new eclipse timings and those reported in the literature,reveals a secular increase and a cyclic variation in its orbital *** former is caused by conservative mass transfer from the secondary component with less mass to the primary one with more *** latter may be explained by either the cyclic magnetic activity on the two components or the light-time effect due to a third *** the absolute physical parameters,we investigated its evolutionary status,and find that LO And is an unevolved contact binary undergoing thermal relaxation oscillation,which will eventually coalesce into a single star with rapid rotation.

关键词： stars:binaries:close stars:binaries:eclipsing stars:individual(LO And)

Activity and Enantioselectivity of Lipase Immobilized in CTAB Microemulsion-based Gels

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Chemical Research in Chinese Universities 2007年第6期23卷 749-752页

作者： SONG Shao-fang LUAN yu-xia LU fu-sui College of Chemistry and Material Science Shandong Agricultural University Taian 271018 P. R. China Institute of Pharmaceutics School of Pharmaceutical Science Shandong University Jinan 250100 P. R. China

Introduction The formation of gelatin-containing mieroemulsionbased gels（MBGs） was first described in 1986 and the physical/structural characterization was carried out by a number of groups with a variety of techniques including tracer diffusion, electrical conductivity, NMR, X-ray and small angle neutron scattering. The MBGs were proposed to comprise an extensive, rigid, interconnected network of gelatin/water rods stabilized by a monolayer of surfactant, in coexistence with a po- pulation of conventional W/O microemulsion droplets.

关键词： Microemulsion-based gels Immobilized lipase Racemic ibuprofen Enantioselectivity Enantiomerie excess

How interfacial electron-donating defects influence the structure and charge of gold nanoparticles on TiO_(2)support

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Nano Research 2024年第7期17卷 5965-5974页

作者： Guang-Jie xia yu fu Wei Cao Jun Li Yang-Gang Wang Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and TechnologyShenzhen 518055China School of Physical Sciences Great Bay UniversityDongguan 523000China Department of Chemistry Tsinghua UniversityBeijing 100084China

The reduction degree of TiO_(2)support is critical to the performances of metal *** many previous theoretical calculations,only the bridge oxygen vacancy(Ov)was considered as the electron-donating defect on reduced rutile TiO_(2)(r-TiO_(2−x))***,titanium adatoms(Tiad.),oxidized titanium islands(***),and acid hydroxyls(ObrH)also exist at the metal/support *** conducting density functional theory(DFT)calculations and ab initio molecular dynamics(AIMD)simulations,we compared r-TiO_(2−x)surfaces with Ov,Tiad.,***,and ObrH sites loaded with Au nanoparticles(NPs).The results showed the Au NPs were oxygen-phobic but titanium-philic,resulting in wetting of Ov and *** short contact with *** and *** Bader charges of Au NPs(QM)showed a good linear relationship with the ideal number of donating electrons(Ne)from the defective sites(QM=−KeNe+QM,S),demonstrating the intrinsic electron allocation at the *** Ov,Tiad.,and *** exhibited similar slopes(Ke),relatively steeper than that of *** means in the scope of Au NP charge state,the *** *** have a close electron-donating ability with Ov,but the ObrH donates relatively fewer *** linear relationship can be extended approximately to other *** higher the metal work function,the steeper the Ke for easier electron donation from defective *** stronger the metal oxygen affinity,the more positive the intercept(QM,S).That explains the easy generation of metallic or negative Pt and Au NPs on r-TiO_(2−x),but hard for Cu and Zn in *** provides theoretical guidance for regulating the charge of metal NPs over TiO_(2−x)supports.

关键词： metal-support interaction titanium oxide oxygen vacancy surface hydroxyl titanium adatom

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6例子宫血管平滑肌瘤病的临床分析

罕少疾病杂志 2017年第4期24卷 45-47页

作者：王文翔高玉霞张付美陈彩霞河南省新乡市中心医院妇科妇瘤一科河南省新乡市中心医院病理科河南新乡453000

目的探讨子宫血管平滑肌瘤病的临床诊治。方法回顾性分析6例子宫血管平滑肌瘤的临床病理资料。结果患者平均年龄40.1岁;平均孕产次分别为3,1.7;33.3%患者有子宫相关手术史。临床表现主要为盆腔包块(4/6),月经改变(2/6),无1例术前确诊,均... 详细信息

目的探讨子宫血管平滑肌瘤病的临床诊治。方法回顾性分析6例子宫血管平滑肌瘤的临床病理资料。结果患者平均年龄40.1岁;平均孕产次分别为3,1.7;33.3%患者有子宫相关手术史。临床表现主要为盆腔包块(4/6),月经改变(2/6),无1例术前确诊,均以"子宫肌瘤"收治。术中瘤体呈白色条索状分布,沿子宫血管方向生长,6例均为术后诊断。40岁以上病变弥漫者行全子宫切除及盆腔肿瘤切除,病灶局限于宫体的年轻患者行病灶切除。随访时间1-25月,1例复发(首次手术时未全部切除肿瘤)。结论子宫血管平滑肌瘤育龄期女性多见,临床表现无特异性,确诊依靠病理组织检查,手术宜彻底切除肿瘤累及区域,术后应严密随访。

关键词：血管平滑肌瘤子宫

A Computational Investigation of the Group Effect of Pits on the Ultimate Strength of Steel Plates

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China Ocean Engineering 2018年第6期32卷 665-674页

作者： fu Qiang FANG Hui WU Ren-xia yu Xue-hui LI Hua-jun Institute of Coastal and Offshore Engineering School of Engineering Ocean University of China State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering Xi'an Jiaotong University

In this work, we focus on assessing the group effect of localized corrosion on the ultimate strength of the marine structural plates and study the load-deformation behaviors of plates of various slenderness and uniaxial ***, we investigate different corroded patterns from a single circular pit to 25 circular pits distributed over the plate and carry out hundreds of nonlinear finite element simulations by combining the number, depth, distribution of pits with imperfections and slenderness of plate. The distribution of multiple pits causes scattering of stress concentration on the plate, then the plastic section of plate changes with wider distribution of damage simultaneously. The ultimate strength arises when un-loading zone comprised of the yielding strips and holes extends across the plate. It can be concluded that the corroded condition defined as group effect of pits manipulates the deformation state and the loading capacity of plate at the ultimate strength mode that coincides with the proportion of effective loading area and section in the process of post-buckling. To validate the effect of pits group, we perform the numerical experiments of the post-buckling of steel plates containing pits in a row with different orientation.

关键词： group effect localized corrosion post-buckling ultimate strength

Breather Lattice Solutions to Negative mKdV Equation

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Communications in Theoretical Physics 2009年第7期52卷 23-29页

作者： ZHAO xia fu Zun-Tao MAO Jiang-yu LIU Shi-Kuo College of Atmospheric Science Lanzhou University Lanzhou 730000 China School of Physics ＆ State Key Laboratory for Turbulence and Complex Systems Peking University Beijing 100871 China LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China School of Physics Peking University Beijing 100871 China

In this paper,dependent and independent variable transformations are introduced to solve the negativemKdV equation systematically by using the knowledge of elliptic equation and Jacobian elliptic *** is shownthat different kinds of solutions can be obtained to the negative mKdV equation,including breather lattice solution andperiodic wave solution.

关键词： Jacobian elliptic function the negative mKdV equation periodic wave solution breather lattice solution