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World Journal of Pediatrics 2016年第1期12卷 82-87页

作者： Peng Bao Jin Jing Wen-Han Yang Xiu-Hong Li Yu-Sui Cai Department of Maternal and Child Health School of Public HealthSun Yat-Sen UniversityGuangzhou 510080China nan sha middle school Guangzhou 511458China

Background:Adolescent violence is now regarded as a major public health *** growing interest in psychographic risk factors for violent behavior,few studies have explored the role of strategies to regulate cognitive emotion in *** study aimed to investigate the prevalence of adolescent violence behaviors and to identify the relationship between specific strategies to regulate cognitive emotion and forms of violent ***:We cross-sectionally surveyed 3315 students in grades 7 to 10 using anonymous,self-reporting questionnaires to examine strategies to regulate cognitive emotion and violence-related behaviors in young adolescents.A logistic regression model was used to identify the relationship between specific violent behaviors and strategies to regulate cognitive ***:The most commonly reported type of violent behavior was verbal attack(48.6%),while 7.1%of students were involved in fi ghts and 2.4%had been injured in *** were involved in all forms of violent behavior studied,and did so significantly more often than girls(P<0.05).Logistic regression revealed that six cognitive emotion strategies(self-blame,rumination,planning,reappraisal,catastrophisizing,and blaming others)were associated with violent behaviors,of which catastrophisizing was the most significant factor of all violent behaviors examined that were infl uenced by this ***:Violence-related behaviors,especially verbal attacks,were common among *** cognitive emotion regulation strategies were positively associated with specific violent behaviors,but catastrophisizing was strongly related to all forms of violent ***,programs targeting adolescent violence must address this and other maladaptive cognitive emotion regulation strategies.

关键词： adolescent anti-social behavior cognitive emotion regulation psychographic risk factors violence

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Neural Regeneration Research 2025年第2期20卷 366-377页

作者： Samuel Abokyi Dennis Yan-yin Tse school of Optometry The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Research Center for shaRP Vision The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Center for Eye and Vision Research Sha TinHong Kong Special Administrative RegionChina

Retinal aging has been recognized as a significant risk factor for various retinal disorders,including diabetic retinopathy,age-related macular degeneration,and glaucoma,following a growing understanding of the molecular underpinnings of their *** comprehensive review explores the mechanisms of retinal aging and investigates potential neuroprotective approaches,focusing on the activation of transcription factor *** meta-analyses have demonstrated promising outcomes of transcription factor EB-targeted strategies,such as exercise,calorie restriction,rapamycin,and metformin,in patients and animal models of these common retinal *** review critically assesses the role of transcription factor EB in retinal biology during aging,its neuroprotective effects,and its therapeutic potential for retinal *** impact of transcription factor EB on retinal aging is cell-specific,influencing metabolic reprogramming and energy homeostasis in retinal neurons through the regulation of mitochondrial quality control and nutrient-sensing *** vascular endothelial cells,transcription factor EB controls important processes,including endothelial cell proliferation,endothelial tube formation,and nitric oxide levels,thereby influencing the inner blood-retinal barrier,angiogenesis,and retinal ***,transcription factor EB affects vascular smooth muscle cells,inhibiting vascular calcification and *** retinal pigment epithelial cells,transcription factor EB modulates functions such as autophagy,lysosomal dynamics,and clearance of the aging pigment lipofuscin,thereby promoting photoreceptor survival and regulating vascular endothelial growth factor A expression involved in *** cell-specific functions of transcription factor EB significantly impact retinal aging mechanisms encompassing proteostasis,neuronal synapse plasticity,energy metabolism,microvasculature,and inflammation,ultimately offering pro

关键词： age-related macular degeneration anti-aging interventions autophagy calorie restriction diabetic retinopathy exercise glaucoma neuromodulation phagocytosis photoreceptor outer segment degradation retinal aging transcription factor EB

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Isometric Immersions of Higher Codimension in to the Product S~κ×H^(n+p-k)

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Acta Mathematica Sinica,English Series 2014年第12期30卷 2146-2160页

作者： Xing Xiao LI Tian Qun ZHANG Department of Mathematics He'nan Normal University Luoyang No.43 middle school

In this paper,we obtain a sufficient and necessary condition for a simply connected Riemannian manifold（M^n,g） to be isometrically immersed,as a submanifold with codimension p 〉 1,into the product S^k×H^n＋p＋k of... 详细信息

关键词： Isometric immersions of higher codimension product structure spheres and hyperboloids

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An Integral Representation for the Weighted Geometric Mean and Its Applications

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Acta Mathematica Sinica,English Series 2014年第1期30卷 61-68页

作者： Feng QI Xiao Jing ZHANG Wen Hui LI school of Mathematics and Informatics He'nan Polytechnic University The 59th middle school Luoyang Department of Mathematics School of ScienceTianjin Polytechnic University

By virtue of Cauchy’s integral formula in the theory of complex functions,the authors establish an integral representation for the weighted geometric mean,apply this newly established integral representation to show that the weighted geometric mean is a complete Bernstein function,and find a new proof of the well-known weighted arithmetic-geometric mean inequality.

关键词： Integral representation Cauchy's integral formula arithmetic mean geometric mean weighted arithmetic-geometric mean inequality complete Bernstein function new proof application

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Influence of alloy ingredients on mechanical properties of ternary boride hard alloy clad materials

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中国有色金属学会会刊：英文版 2004年第z1期14卷 482-486页

作者： LIU Fu-tian SONG Shi-xue YANG Jun-ru HUANG Wei-ling HUANG Chuan-zhen CHENG Xin LI Zhao-qian school of Materials Science and Engineering Ji''nan University Ji''nan 250022 China school of Mechanical Engineering Shandong University Ji''nan 250061 China Techinal Center Ji''nan Iron & Steel Group Corporation Ji''nan 250101 China School of Materials Science and Engineering Ji''nan University Ji''nan 250022 China School of Mechanical Engineering Shandong University Ji''nan 250061 China School of Mechanical Engineering Shandong University Ji''nan 250061 China School of Mechanical Engineering Shandong University Ji''nan 250061 China School of Materials Science and Engineering Ji''nan University Ji''nan 250022 China School of Mechanical Engineering Shandong University Ji''nan 250061 China

Using Mo, B-Fe alloy and Fe powders as raw materials, and adding C, Cr and Ni ingredients, respectively, or C, Cr and Ni mixed powders, ternary boride hard alloy clad materials was prepared on Q235 steel substrate by means of in-situ reaction and vacuum liquid phase sintering technology. The influence of alloy ingredients on the mechanical properties of ternary boride hard alloy clad materials was investigated. The results indicate that a mixture of 0.8% C, 5% Cr and 2% Ni ingredients gives a ternary boride hard alloy clad material with optimal mechanical properties, such as high transverse rupture strength, high hardness and good wear resistance.

关键词： hard alloy cladding liquid phase sintering alloying ingredient transverse rupture strength hardness wear resistance

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Preparation of special silicon steel grade MgO from hydromagnesite

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Journal of University of Science and Technology Beijing 2007年第3期14卷 225-230页

作者： Xiangyang Zhou shanni Li Jie Li Hongzhuan Liu shangyuan Wu school of Metallurgical Science and Engineering Central South University Chang sha 410083 China school of Biological Science and Technology Central South University Chang sha 410083 China

A preparation technology of MgO powder used in special silicon steel from hydromagnesite mineral has been developed. The preparation technology includes the following steps：（1） calcining the hydromagnesite at 700-750°C for 1.5-2 h; （2） hydrating the calcined hydromagnesite to be slurry containing the solid-liquid ratio of 15-20 g？L？1; （3） acquiring Mg（HCO3）2 solution by carbonating the slurry, the carbonation temperature, CO2 pressure, and end point PH value of carbonation are less than 40°C, 0.4-0.6 MPa, and 7 respectively during the carbonation process; （4） preparing precipitated basic magnesium carbonate by thermally decomposing the Mg（HCO3）2 solution at 90-100°C; （5） obtaining the MgO product by calcining the precipitated basic magnesium carbonate at 850-950°C for 30-60 min, and adopting flowing nitrogen during the cooling process. By using this technology, more than 80wt% magnesium in hydromagnesite mineral can be extracted, and high-performance MgO products used in special silicon steel can be ob- tained.

关键词： special silicon steel grade MgO hydromagnesite mineral carbonation end point pH value

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Preparation of transparent yttrium aluminum garnet ceramics by relatively low temperature solid-state reaction

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中国有色金属学会会刊：英文版 2003年第5期13卷 1096-1101页

作者：王介强岳云龙陶文宏于庆华陶珍东孙旭东 school of Materials Science and Engineering Ji'nan University Ji'nan 250022China school of Materials Science and Engineering shandong University Ji'nan 250014China school of Materials and Metallurgy Northeastern University Shenyang 110006China

A new preparation method for a highly sinterable Y 2O 3 powder was developed, using the mixture of the powder with Al 2O 3 powder, a transparent yttrium aluminum garnet(YAG) ceramic was prepared at relatively low temperature by a solid state reaction method. Yttrium nitrate was used as a mother salt, and aqueous ammonia was used as a precipitant reagent, the fine and dendritic precursor crystalline was prepared by adding 0.5% ammonium sulfate into the precipitation reaction system. The highly pure and low agglomerated Y 2O 3 powders were obtained by calcinating the precursor at 1 100 ℃, the primary particles are spherical and 60 nm in diameter. The mixture of Y 2O 3 and Al 2O 3 powders was calcinated, and the resulting mixture compact pressed in mold could be sintered to transparency under vacuum at 1 700 ℃. The sintered transparent YAG polycrystalline exhibits a homogeneous microstructure and its transmittance reaches 45% in the visible light region and 70% in the near infrared wavelength region.

关键词：低温固体钇铝石榴石固态反应 YAG 透明陶瓷硫酸根离子

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Algebraic Verification of Finite Group-Based Potential Games with Vector Payoffs

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Journal of Systems Science & Complexity 2022年第6期35卷 2131-2144页

作者： WANG Yuanhua LI Haitao Business school Shandong Normal UniversityJi'nan 250014China school of Mathematics and Statistics Shandong Normal UniversityJi'nan 250014China

This paper studies a class of strategic games,where players often collaborate with other players to form a group when making decisions,and the payoff functions of players in such games are presented as vector ***,using the semi-tensor product(STP)method,it is proved that a finite game with vector payoffs is potential if and only if its potential equation has *** adding a suitable weight vector to the vector payoffs of each player,a finite game with vector payoffs that is not potential can be converted into a potential ***,as a natural generalization,the authors consider the verification problem of the group-based potential games with vector *** solving a linear potential equation,a simple formula is obtained to calculate the corresponding potential ***,some examples are presented and discussed in detail to illustrate the theoretical results.

关键词： Group-based potential games potential equation semi-tensor product of matrices vector payoffs

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The Preparation of the Carbosilane Dendrimers with Pentafluorophenyl Groups

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Chinese Chemical Letters 2006年第9期17卷 1159-1161页

作者： Rui Fang GUAN Chuan Jian ZHOU Sheng Yu FENG school of Materials Science and Engineering Ji＇nan University Ji＇nan 250022 school of Materials Science and Engineering Shandong University Ji＇nan 250061 school of Chemistry and Chemical Engineering shandong University Ji＇nan 250100

Polysiloxane was a good solvent for hydrosilation reaction of carbosilane dendrimers with pentafluorophenyl core and HSiMeE（CH2）3C6F5. A new kind of dendrimer with both pentafluorophenyl core and terminal groups was synthesized. The studies showed that with the increase of fluorination, the viscosity values of carbosilane dendrimers decreased.

关键词： Polysiloxane hydrosilation carbosilane dendrimer pentafluorobenzene low viscosity.

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Analytic Solutions of an Iterative Differential Equation under Brjuno Condition

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Acta Mathematica Sinica,English Series 2009年第9期25卷 1469-1482页

作者： Jian LIU Jian Guo SI school of Science University of Ji'nan Ji'nan 250022 P.R. China school of Mathematics Shandong University Ji'nan 250100 P.R. China

In this paper, the differential equation involving iterates of the unknown function,x＇（z）=[a^2-x^2（z）]x^[m]（z）with a complex parameter a, is investigated in the complex field C for the existence of analytic solutions. First of all, we discuss the existence and the continuous dependence on the parameter a of analytic solution for the above equation, by making use of Banach fixed point theorem. Then, as well as in many previous works, we reduce the equation with the SchrSder transformation x（z） = y（αy^-1（z）） to the following another functional differential equation without iteration of the unknown functionαy＇（αz）=[a^2-y^2（αz）]y＇（z）y（α^mz）,which is called an auxiliary equation. By constructing local invertible analytic solutions of the auxiliary equation, analytic solutions of the form y（αy^-1 （z）） for the original iterative differential equation are obtained. We discuss not only these α given in SchrSder transformation in the hyperbolic case 0 〈｜α｜〈 1 and resonance, i.e., at a root of the unity, but also those α near resonance （i.e., near a root of the unity） under Brjuno condition. Finally, we introduce explicit analytic solutions for the original iterative differential equation by means of a recurrent formula, and give some particular solutions in the form of power functions when a = 0.

关键词： iterative differential equation analytic solution Banach fixed point theorem resonance Diophantine condition Brjuno condition

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