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Preparation and tailoring electromagnetic shielding and microwave absorbing performance of Fe_(3)O_(4)modified activated carbon foam based on mesophase coal pitch pyrolysis foaming
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作者 GE Yuanyuan WANG Yuzhe +4 位作者 XU Guozhong ZHU Yaming YUAN Xia SHI Guimei ZHONG Xiangyun 《燃料化学学报(中英文)》 北大核心 2026年第1期120-134,共15页
The development of materials with excellent microwave absorption(MWA)and electromagnetic interference(EMI)shielding performances has currently received attention.Herein,mesophase pitch-based carbon foam(MPCF)with 3D i... The development of materials with excellent microwave absorption(MWA)and electromagnetic interference(EMI)shielding performances has currently received attention.Herein,mesophase pitch-based carbon foam(MPCF)with 3D interconnected pore structure was prepared through the high pressure pyrolysis of mesophase coal tar pitch.It is found that the 3D interconnected cellular pores of MPCF facilitate multiple reflections of electromagnetic waves,which results in the minimum reflection loss(RLmin)value of MPCF reaches-37.84 dB with the effective absorption bandwidth(EAB)of 5.44 GHz at a thickness of 2.70 mm,and the total average electromagnetic shielding effectiveness(SE_(T))under 3.00 mm thickness achieves 26.52 dB in X-band.Subsequently,MPCF is activated by KOH to obtain activated carbon foam(A-MPCF).The average SE_(T)of A-MPCF achieves 103.00 dB for abundant nanopores on the pore cell walls,which leads to a transition from the multiple reflections of electromagnetic waves on the walls to diffuse reflection.Unfortunately,the reflection coefficient(R)of A-MPCF increases from 0.78 to 0.90.To reduce the R value,Fe_(3)O_(4)/A-MPCF was fabricated via the in situ growth of nano Fe_(3)O_(4)on A-MPCF.Consequently,the R value of Fe_(3)O_(4)/A-MPCF was reduced from 0.90 to 0.74,whereas the MWA performance was only slightly decreased.This work proposes a simple strategy for simultaneously adjusting MWA and EMI shielding performances of materials. 展开更多
关键词 carbon foam microwave absorption electromagnetic interference shielding mesophase pitch
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Dynamic psychological vulnerability and adaptation in rheumatoid arthritis:Trajectories,predictors,and interventions
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作者 Xue-Meng Chen Xian Cheng Wei Wu 《World Journal of Psychiatry》 2026年第1期32-46,共15页
Rheumatoid arthritis(RA)patients face significant psychological challenges alongside physical symptoms,necessitating a comprehensive understanding of how psychological vulnerability and adaptation patterns evolve thro... Rheumatoid arthritis(RA)patients face significant psychological challenges alongside physical symptoms,necessitating a comprehensive understanding of how psychological vulnerability and adaptation patterns evolve throughout the disease course.This review examined 95 studies(2000-2025)from PubMed,Web of Science,and CNKI databases including longitudinal cohorts,randomized controlled trials,and mixed-methods research,to characterize the complex interplay between biological,psychological,and social factors affecting RA patients’mental health.Findings revealed three distinct vulnerability trajectories(45%persistently low,30%fluctuating improvement,25%persistently high)and four adaptation stages,with critical intervention periods occurring 3-6 months postdiagnosis and during disease flares.Multiple factors significantly influence psychological outcomes,including gender(females showing 1.8-fold increased risk),age(younger patients experiencing 42%higher vulnerability),pain intensity,inflammatory markers,and neuroendocrine dysregulation(48%showing cortisol rhythm disruption).Early psychological intervention(within 3 months of diagnosis)demonstrated robust benefits,reducing depression incidence by 42%with effects persisting 24-36 months,while different modalities showed complementary advantages:Cognitive behavioral therapy for depression(Cohen’s d=0.68),mindfulness for pain acceptance(38%improvement),and peer support for meaning reconstruction(25.6%increase).These findings underscore the importance of integrating routine psychological assessment into standard RA care,developing stage-appropriate interventions,and advancing research toward personalized biopsychosocial approaches that address the dynamic psychological dimensions of the disease. 展开更多
关键词 Rheumatoid arthritis Psychological vulnerability Disease adaptation ability Dynamic changes Mental health
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Parameters affect foaming and foam stability during foam drilling 被引量:4
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作者 Hazaea Mohammed Ould El Houssein Yarbana 《Global Geology》 2007年第2期203-207,共5页
The authors presented indoor practice experiments of parameters affect on foaming and foam stability. Experiments were carried out and special equipments were used to determine foaming and foam stability; tests were t... The authors presented indoor practice experiments of parameters affect on foaming and foam stability. Experiments were carried out and special equipments were used to determine foaming and foam stability; tests were tabulated and charted. The effects of chemical and physical parameters on foaming and foam stability have been conducted. 展开更多
关键词 foam fluid foaming foam stability TEMPERATURE PRESSURE
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Comparative genomics study between high and low laying goose breeds reveals the important role of ESR1 in laying ability 被引量:1
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作者 Qingyuan Ouyang Hengli Xie +8 位作者 Shenqiang Hu Cong Lan Mingxia Ran Jiwei Hu HuaHe Liang Li Hehe Liu Hao Qu Jiwen Wang 《Journal of Integrative Agriculture》 2025年第3期1167-1180,共14页
The low egg production of goose greatly limits the development of the industry.China possesses the most abundant goose breeds resources.In this study,genome resequencing data of swan goose(Anser cygnoides)and domestic... The low egg production of goose greatly limits the development of the industry.China possesses the most abundant goose breeds resources.In this study,genome resequencing data of swan goose(Anser cygnoides)and domesticated high and low laying goose breeds(Anser cygnoides domestiation)were used to identify key genes related to egg laying ability in geese and verify their functions.Selective sweep analyses revealed 416 genes that were specifically selected during the domestication process from swan geese to high laying geese.Furthermore,SNPs and Indels markers were used in GWAS analyses between high and low laying breed geese.The results showed that RTCB,BPIFC,SYN3,SYNE1,VIP,and ESR1 may be related to the differences in laying ability of geese.Notably,only ESR1 was identified simultaneously by GWAS and selective sweep analysis.The genotype of Indelchr3:54429172,located downstream of ESR1,was confirmed to affect the expression of ESR1 in the ovarian stroma and showed significant correlation with body weight at first egg and laying frequency of geese.CCK-8,EdU,and flow cytometry confirmed that ESR1 can promote the apoptosis of goose pre-hierarchical follicles ganulosa cells(phGCs)and inhibit their proliferation.Combined with transcriptome data,it was found ESR1 involved in the function of goose phGCs may be related to MAPK and TGF-beta signaling pathways.Overall,our study used genomic information from different goose breeds to identify an indel located in the downstream of ESR1 associated with goose laying ability.The main pathways and biological processes of ESR1 involved in the regulation of goose laying ability were identified by cell biology and transcriptomics methods.These results are helpful to further understand the laying ability characteristics of goose and improve the egg production of geese. 展开更多
关键词 GOOSE laying ability GENOME ESR1
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An Empirical Study on the Reflective Feedback Model Based on Pedagogical Agents to Improve Students’ Problem-Solving Ability 被引量:1
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作者 Hui-Lin Zhang Jun-Jie Yan +4 位作者 Jing Liu Zhuo-Cen Zou Qun-Fang Zeng Yu-Lu Jin Jian-Nan Wu 《教育技术与创新》 2025年第1期66-75,共10页
This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with ... This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with 84 students from a middle school selected as the research subjects(44 in the experimental group and 40 in the control group).The experimental group used the reflective feedback model,while the control group used the factual feedback model.The results show that,compared with factual feedback,the reflective feedback model based on the pedagogical agent significantly improves students’problem-solving ability,especially at the action and thinking levels.In addition,this model effectively reduces students’cognitive load,especially in terms of internal and external load. 展开更多
关键词 pedagogical agent problem-solving ability reflective feedback
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Cultivation of Students’Critical Thinking Ability in College English Audio-Visual and Oral Teaching 被引量:1
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作者 Hui Zhang 《Journal of Contemporary Educational Research》 2025年第6期36-41,共6页
With the increasingly prominent trend of globalization,English,as the common language of international communication,plays an increasingly important role in university education.As a key link in English teaching,the c... With the increasingly prominent trend of globalization,English,as the common language of international communication,plays an increasingly important role in university education.As a key link in English teaching,the college English audio-visual oral course not only imparts language knowledge and skills,but also shoulders the important task of cultivating students’critical thinking.As one of the essential core qualities of modern talents,critical thinking ability plays an irreplaceable role in students’in-depth understanding of English knowledge,improving intercultural communication ability and cultivating innovative thinking.This paper expounds the significance of cultivating students’critical thinking ability in college English audio-visual and oral teaching,and puts forward a series of innovative teaching strategies to cultivate students’critical thinking ability combined with practical teaching experience and cutting-edge education theory,in order to provide new ideas and practical guidance for the improvement of college English teaching quality and the development of students’comprehensive quality. 展开更多
关键词 Critical thinking ability College English Audio-visual and oral teaching
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Study on Combining Ability for Yield and Yield Contributing Characters of Short Statured Maize Inbred Lines at over Locations
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作者 Mohammad Motasim Billah Mohammad Quamrul Islam Matin +5 位作者 Mohammad Zahirul Alam Talukder Mohammed Harun or Rashid Mohammad Khorshed Alam Seuli Sharmin Praneetha Subramanyam Muhammad Ibrar 《American Journal of Plant Sciences》 2025年第1期170-179,共10页
Twenty short-statured maize inbred lines were collected from CIMMYT India and Mexico through the Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipur. The experiment was conducted from N... Twenty short-statured maize inbred lines were collected from CIMMYT India and Mexico through the Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipur. The experiment was conducted from November 2020 to April 2021 in three different agroecological regions such as BARI, Gazipur, RARS Barisal and RARS Rangpur. Seven inbred lines were selected on the basis of genetic diversity and per se performance and they were crossed separately in a 7 × 7 half diallel fashion, producing 21F1 hybrids in 2019 which were evaluated at three locations. However, variances due to GCA were much higher in magnitude than SCA for all the characters indicating preponderance of additive gene effects on the inheritance of these characters. Two parents viz., P3 (CML33) and P4 (CML41) were good general combiners and two crosses viz., P4 × P5 (CML41 × CML31) and P5 × P7 (CML31 × CML124) expressed significant positive SCA effects coupled with significant positive heterosis for grain yield and for most of the yield contributing characters over the two commercial check varieties BHM 9 and NK40. Four crosses: P1 × P5 (CML116 × CML31), P1 × P6 (CML116 × CML32), P2 × P6 (CML72 × CML32) and P3 × P4 (CML33 × CML41), exhibited significant and negative SCA effects for both plant and ear height which were desirable for short stature. Genotypes x location interaction was also significant for maximum characters, suggesting that genotypes interacted significantly in different environments. 展开更多
关键词 Combining ability GCA SCA Gene Action Maize
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Construction of a foaming agent containing hydroxysulfobetaine andα-olefin sulfonate for clastic reservoirs with high temperature and high salinity
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作者 Long-Jie Li Ji-Jiang Ge +1 位作者 Peng-Fei Chen Peng-Ju Chu 《Petroleum Science》 2025年第2期771-786,共16页
High-temperature and high-salt reservoirs are often accompanied by serious gas channeling in gas flooding,which will greatly affect the effect of gas injection development,so in-situ foaming of temperature-resistant a... High-temperature and high-salt reservoirs are often accompanied by serious gas channeling in gas flooding,which will greatly affect the effect of gas injection development,so in-situ foaming of temperature-resistant and salt-resistant foaming agents is commonly used to control gas channeling.The feasibility of the compound system of dodecyl hydroxyl sulfobetaine(HSB12)andα-olefin sulfonate(AOS)as foaming agent for sandstone reservoir was studied at 130℃and 22×10^(4)mg/L.The results showed that the foaming agent(HSB12 and AOS were compounded in a 6:1 mass ratio,in this article,this foaming agent is simply referred to as SA61)had good solubility in 22×10^(4)mg/L simulated formation water.Besides,the foaming volume of SA61 and HSB12 was similar,but the foam decay half-life of SA61was 10-25 times higher than that of HSB12.The foaming performance of SA61 on the surface of quartz sand remained above 90%of that before adsorption.The strong interaction between HSB12 and AOS in the compound system SA61 was demonstrated by surface rheological measurements and NMR studies of surfactants.The results of co re flow test showed that SA61 had better mobility control ability than HSB12under the same surfactant concentration.In addition,SA61 showed a selective mobility reduction in2005.30 and 632.00 mD cores.The above research results can guide the selection and application of foaming agent in clastic reservoir. 展开更多
关键词 Hydroxysulfobetaine α-olefin sulfonate foaming agent SOLUBILITY Temperature and salinity resistance Bulk foam test Mobility control
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Parental cognitive ability effects on children’s logical reasoning ability:The mediating role of academic expectation and the family environment
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作者 Qing Wang Haiyan Xu Xuhuan Wang 《Journal of Psychology in Africa》 2025年第4期497-503,共7页
This study investigated the relationship between parental cognitive ability and child logical reasoning ability,and the role of academic expectation and family environment in that relationship.Based on the 2020 China ... This study investigated the relationship between parental cognitive ability and child logical reasoning ability,and the role of academic expectation and family environment in that relationship.Based on the 2020 China Family Panel Studies(CFPS)data,1491 children(girls ratio=53.78%;average grade=6.023 years,school grade standard deviation=1.825 years).Results following multiple regression model(OLS)show that the higher the parental cognitive ability,the higher the children’s logical reasoning ability.Secondly,parental academic expectation serves as a mediator between their cognitive ability and children’s logical reasoning ability for higher logical reasoning by children.Third,a possible family environment acts as a mediator in the relationship between parents’cognitive ability and children’s logical reasoning ability to be higher.We conclude from thesefindings that parents with high cognitive abilities can enhance their children’s logical reasoning skills not only by setting higher academic expectations,but also by cultivating a supportive family environment.Thesefindings imply a need for intervention to improve family quality of life to enhance children’s thinking abilities to optimize their academic learning. 展开更多
关键词 parental cognitive ability children’s logical reasoning ability academic expectation family environment intermediary role
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Foaming of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)Foams with Double Melting Peaks
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作者 Ming-Hui Wu Dan Shi +1 位作者 Li Zhang Zong-Bao Wang 《Chinese Journal of Polymer Science》 2025年第12期2413-2421,I0016,共10页
Due to environmental concerns and the oil crisis,biodegradable polymer foams have garnered increasing attention.Among all biodegradable materials,Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(P(HB-co-HV))distinguishes ... Due to environmental concerns and the oil crisis,biodegradable polymer foams have garnered increasing attention.Among all biodegradable materials,Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(P(HB-co-HV))distinguishes itself with the advantage of being biodegradable in all natural environments.However,preparing P(HB-co-HV)foam with a fine cellular structure remains challenging.Herein,P(HBco-HV)foams with a double melting peak structure were developed.P(HB-co-HV)samples were first heated briefly near the melting temperature to melt most of the crystals,followed by saturation and foaming at a lower temperature(foaming temperature).P(HB-co-HV)foams with cell sizes of 7.1-30.0μm and relative densities ranging from 0.3 to 0.9 were prepared,and the foaming temperature window was as wide as 16℃.The effect of heat treatment temperature and foaming temperature on the crystallization and cell structure was investigated through DSC and SEM.It was found that the high-melting temperature crystals generated during the saturation step significantly improved the cell structure of P(HB-coHV),since these crystals can enhance the heterogeneous cell nucleation and hinder the cell growth during foaming.The low-melting temperature crystals were formed during foaming.In situ WAXD analysis during heating showed that the high-and low-melting peaks corresponded to HV-unit-excluded and HV-unit-included PHB crystals,respectively. 展开更多
关键词 P(HB-co-HV) foaming Crystallization
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The Construction of a New System for University Mathematics Teaching Based on Ability Cultivation
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作者 Lifeng Guo 《Journal of Contemporary Educational Research》 2025年第7期292-298,共7页
To meet the demands of higher education reform and innovative talent cultivation,the teaching team of Tarim University,with ability cultivation as the core,has established a new“331”university mathematics teaching s... To meet the demands of higher education reform and innovative talent cultivation,the teaching team of Tarim University,with ability cultivation as the core,has established a new“331”university mathematics teaching system.Through the multi-dimensional linkage of master teachers’guidance,course optimization,stratified teaching,practical reinforcement,and competition-driven,it has significantly improved students’mathematical application ability and innovative quality. 展开更多
关键词 University mathematics Teaching system ability cultivation
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Effects of Cosurfactants on the Foam Performance and Stability of Crystalline Amino Acid Facial Cleanser
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作者 Zhang Ruoxi Tang Xiaoqin Zhang Guodong 《China Detergent & Cosmetics》 2025年第4期39-45,共7页
The effects of different kinds of cosurfactants on the properties of the crystalline amino acid cleanser based on potassium cocoyl-glycine were studied by analyzing the foam properties,high-temperature stability and c... The effects of different kinds of cosurfactants on the properties of the crystalline amino acid cleanser based on potassium cocoyl-glycine were studied by analyzing the foam properties,high-temperature stability and crystallization temperature.The results showed that PEG-80 sorbitan laurate makes the composite foaming system slower and less,but the foam stability and high-temperature stability are better.The addition of lauryl hydroxysultaine can make the foaming speed faster and the foam volume larger,and this material can improve the crystallization of potassium cocoyl-glycine,so that the high-temperature stability of the composite system is better.The addition of anionic surfactant like sodium methyl cocoyl taurate or sodium lauroyl glutamate is helpful for foam fineness and foam stability,but may have a negative effect on high-temperature stability.The addition of lauryl glucoside is disadvantage on foam stability and high-temperature stability,so it is not suitable for this system.Cosurfactants can be selected on demand when developing the related products. 展开更多
关键词 SURFACTANT amino acid facial cleanser foam STability
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Making stereopsis related to the ability of ocular deviation:a new paradigm for assessment of intermittent exotropia
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作者 Jian-Bing Li Wan-Ting Kong +10 位作者 Tao Shen Yong-Guang Yuan Chong-Lin Chen Dan-Min Peng Min-Tong Liang Xuan He Dan Luo Jia-Yi Su Wei Wang Rui-Xin Wang Xin-Ping Yu 《International Journal of Ophthalmology(English edition)》 2025年第2期308-314,共7页
AIM:To investigate the underlying factors by establishing a new paradigm for assessing control ability under stereopsis testing conditions.METHODS:This was a prospective observational study.We evaluated the control ab... AIM:To investigate the underlying factors by establishing a new paradigm for assessing control ability under stereopsis testing conditions.METHODS:This was a prospective observational study.We evaluated the control ability of intermittent exotropia(IXT)patients in three conditions:natural 2D optotype viewing,2D optotype viewing with polarized glasses,and 3D optotype viewing with polarized glasses.Recording with a smartphone,we captured videos to analyze the accurate time of spontaneous exodeviation and subsequent realignment before and after breaking fusion.Additionally,the correlation of stereopsis were also analyzed.RESULTS:A total of 48 patients(age range:4-33y;54.17%male)participated in the study.When viewing 3D optotypes with polarized glasses,their median control scores were 1(interquartile range,0-4)at distance and 0(0-1)at near.These scores were significantly better than those observed under natural viewing conditions,which were 2.5(1-5)at a distance and 1(0-3)at near(Friedman test,P=0.049).Furthermore,those subjects who exhibited exophoria(realignment within 2 seconds)while viewing 3D optotypes with polarized glasses were more likely to have measurable stereo vision(Kendall’sτb=-0.344,P=0.018).CONCLUSION:IXT patients exhibit enhanced control ability when using polarized glasses to view 3D optotypes,notably improving realignment capabilities.This expands our understanding of current tests and offers a potentially sensitive method for assessing IXT severity. 展开更多
关键词 intermittent exotropia STEREOPSIS control ability
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One-step construction of light-responsive intelligent foam by the Hoffmeister effect and 2D black phosphorus:High stability and on-demand degradation
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作者 Xiaoyang Yu Huan Li +4 位作者 Ke Qiu Ning Kang Mingjun Xu Ruowen Zong Shouxiang Lu 《Journal of Materials Science & Technology》 2025年第8期98-109,共12页
Stimulus-responsive liquid foams have gained much attention for use in various industrial applications.However,it remains challenging to construct such systems with integrated functionality of easy preparation,high st... Stimulus-responsive liquid foams have gained much attention for use in various industrial applications.However,it remains challenging to construct such systems with integrated functionality of easy preparation,high stability,high foaming ability,and rapid on-demand degradation.Herein,by combining the Hofmeister effect and nanotechnology,a promising ultrastable and photoresponsive liquid foam was prepared that had a lifetime of several months and could be destroyed on demand in a few minutes.Specifically,the system was prepared by simply mixing a gelatine solution containing black phosphorus nanosheets(BPNs)and kosmotropic anions in the Hofmeister series with air in one step using only two syringes,and there were no chemical modifications or crosslinking agents required.The kosmotropic anions induced stronger hydrophobic interactions,bundling within molecular chains,and blockage of foam drainage channels,which significantly improved the foaming ability and the lifetime and mechanical properties of the foam.Moreover,rational structure design realized a promising on-demand degradation mechanism via a cascading“light trigger-heat generation-Marangoni flow generation”process occurring on the bubble surfaces.On this basis,the BPNs converted light into thermal energy,which induced Marangoni flow driven by surface tension gradients along the gas-liquid interfaces,and the bubble film ruptured within seconds upon light illumination.The designed stimulus-response systems combined stable,fast and repeatable processes without sacrificing the foaming abilities,thus providing a general way to control the stabilities of foams,bubbles and films. 展开更多
关键词 Stimulus-responsive 2D materials Liquid foam Hofmeister effect
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Research Progress on Empathic Ability of Student Nurses
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作者 Xue ZHAO Jingping LI +2 位作者 Songhong XIE Danna LIU Shuting CHEN 《Medicinal Plant》 2025年第5期84-87,共4页
This article first reviews the basic concepts and theoretical frameworks of empathic ability.Subsequently,it analyzes the characteristics of student nurses'empathic ability,its measurement methods,and influencing ... This article first reviews the basic concepts and theoretical frameworks of empathic ability.Subsequently,it analyzes the characteristics of student nurses'empathic ability,its measurement methods,and influencing factors,and explores effective strategies for enhancing it.Finally,this paper summarizes the impact of student nurses'empathic ability on nursing practice,professional development,and emotional health,and proposes directions for future research.Through the integration and analysis of existing literature,this study provides nursing educators with a solid theoretical foundation and practical guidance for enhancing student nurses'empathic ability. 展开更多
关键词 Student nurses Empathic ability Emotional support Nursing education Healthcare PSYCHOLOGY
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Microcellular Foaming-derived Superlight Ultra-high Molecular Weight Poly(vinylidene fluoride)Foams for Outstanding Thermal InsulationApplications
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作者 Chao Wei Jia-Long Chai +1 位作者 Shuai Li Gui-Long Wang 《Chinese Journal of Polymer Science》 2025年第10期1837-1849,共13页
Poly(vinylidene fluoride)(PVDF)foam has received widespread attention due to its high strength,and excellent combination of flame-retardancy,antibacterial performance,and chemical stability.However,the foaming ability... Poly(vinylidene fluoride)(PVDF)foam has received widespread attention due to its high strength,and excellent combination of flame-retardancy,antibacterial performance,and chemical stability.However,the foaming ability of conventional PvDF is severely limited by its rapid crystallization kinetics and poor melt strength.Although ultra-high molecular weight PVDF(H-PVDF)theoretically offers prolonged melt elasticity favorable for foaming,the extremely high melt viscosity poses substantial processing challenges,and its foaming behavior has remained largely unexplored.To address these issues,this study proposes a novel fabrication strategy combining solvent casting with microcellular foaming to prepare H-PVDF foams.Dynamic mechanical analysis and differential scanning calorimetry reveal that extensive chain entanglements in H-PVDF impose constraints on crystallization and significantly enhance melt strength.By tuning the processing parameters,the distinctive foaming be-havior of H-PVDF under various conditions is systematically elucidated.Remarkably,a record-high expansion ratio of 55.6-fold is achieved,ac-companied by a highly uniform and fine cellular structure.The resulting H-PVDF foams exhibit a low thermal conductivity of 31.8 mW·m^(-1).K^(-1),while retaining excellent compressive strength,flame-retardancy,and hydrophobicity.These outstanding properties highlight the great potential of H-PVDF foams as the thermal insulation materials for applications in aerospace,energy infrastructure,and other extreme environments. 展开更多
关键词 Microcellular foaming Ultra-high molecular weight PVDF Superlight Thermal insulation FLAME-RETARDANCY
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Exploration on Cultivating College Students’Professional English Learning Ability based on Deep Learning
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作者 Runduo Cao 《Journal of Contemporary Educational Research》 2025年第9期74-79,共6页
With the accelerating globalization and the rapid development of information technology,the cultivation of college students’professional English learning ability is facing new challenges and opportunities.As an emerg... With the accelerating globalization and the rapid development of information technology,the cultivation of college students’professional English learning ability is facing new challenges and opportunities.As an emerging learning concept,deep learning emphasizes that learners,on the basis of understanding the essence of knowledge,achieve in-depth integration and application of knowledge through the development of critical thinking,problem-solving,and innovation capabilities.This paper aims to explore the strategies for cultivating college students’professional English learning ability based on deep learning,in order to provide useful references for improving college students’professional English proficiency and international competitiveness. 展开更多
关键词 Deep learning Professional English Learning ability
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Research on the College English Teaching Mode Based on the Integration of Language Learning and Critical Thinking Ability Training
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作者 Hui Zhang 《Journal of Contemporary Educational Research》 2025年第5期115-121,共7页
Under the tide of economic globalization,college English teaching should not only focus on the improvement of language ability,but also on the cultivation of students’critical thinking ability.This paper takes the in... Under the tide of economic globalization,college English teaching should not only focus on the improvement of language ability,but also on the cultivation of students’critical thinking ability.This paper takes the integration of language learning and critical thinking ability as the breakthrough point,explores the college English teaching mode under the background of the integration of the two,analyzes the current situation and disadvantages of the separation of the two in the current teaching,and puts forward the integration path from the aspects of curriculum design,teacher training,evaluation system,and so on.With the help of activities such as creating real language situations,carrying out debates and critical reading,it helps students strengthen the improvement of logical analysis and critical thinking ability in their gradual learning,realize the coordinated development of language learning and critical thinking ability,and cultivate compound talents with both language literacy and critical thinking ability for the society. 展开更多
关键词 Language learning Critical thinking ability INTEGRATION College English Teaching model
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Investigation and Research on Students'Learning Ability in Vocational Undergraduate Education:A Case Study of the Integrated Circuits Major at Shenzhen Polytechnic University
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作者 CHENG Bowen 《Philosophy Study》 2025年第5期269-276,共8页
Vocational undergraduate education has entered a new stage of high-quality development,making the cultivation of students'learning ability a core issue in enhancing talent cultivation quality.This study conducted ... Vocational undergraduate education has entered a new stage of high-quality development,making the cultivation of students'learning ability a core issue in enhancing talent cultivation quality.This study conducted a questionnaire survey with 177 students majoring in integrated circuits at Shenzhen Polytechnic University(SZPU),focusing on six dimensions:self-learning proficiency,academic competence,goal planning,self-discipline,learning initiative,and learning environment.The results indicate that while students possess a solid learning foundation and clear career planning,significant deficiencies exist in the execution of academic plans,self-discipline,and learning initiative.In response to these issues,this study proposes four systematic improvement pathways from the institutional perspective:establishing a closed-loop academic navigation system incorporating“goal-process-feedback”,creating an immersive“virtual-physical integrated”learning environment,implementing a multi-dimensional“cognitive-affective-practical”initiative activation plan,and building a synergistic cultivation mechanism for“self-discipline and core competencies”.The findings aim to provide references for talent cultivation and teaching reform in vocational undergraduate integrated circuit programs. 展开更多
关键词 vocational undergraduate education students'learning ability integrated circuit major
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Optimization of glass-forming ability and synergistic enhancement of strength plasticity in Cu_(50)Zr_(46)Al_(4)metallic glasses through Ag additions
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作者 Dongmei Li Zhongyi Zhang +3 位作者 Bolin Shang Rui Feng Xuefeng Li Peng Yu 《Chinese Physics B》 2025年第8期646-650,共5页
Bulk metallic glasses(BMGs)are typically characterized by high strength and elasticity.However,they generally demonstrate a deficiency in plastic deformation capability at room temperatures.In this work,Cu_(50-x)Zr_(4... Bulk metallic glasses(BMGs)are typically characterized by high strength and elasticity.However,they generally demonstrate a deficiency in plastic deformation capability at room temperatures.In this work,Cu_(50-x)Zr_(46)Al4Agx(x=0,1,2,3,4)alloys were prepared by arc melting and copper mold casting to investigate their structure,glass-forming ability,and mechanical properties.The results show that the addition of Ag can increase the parameter of DTx and g in Cu_(50)Zr_(46)Al_(4)alloy by 116%and 1.5%respectively,effectively enhancing its thermal stability and glass-forming ability.Compressive fracture tests reveal that the addition of Ag can significantly improve the yield strength,ultimate strength,and plasticity of the Cu_(50)Zr_(46)Al_(4)alloy.Specifically,with the Ag addition of 1 at.%,the alloy’s ultimate strength and plasticity increased by 71.8%and 21 times,respectively.Furthermore,the introduction of Ag can effectively control the free volume content in the Cu_(50)Zr_(46)Al_(4)alloy,thereby tuning the hardness of the material.This work provides valuable insights into improving the mechanical performance of BMGs through micro-alloying approaches. 展开更多
关键词 metallic glasses glass-forming ability synergistic enhancement strength-plasticity Ag addition
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