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Walking for Mental Health:Effects of Mobile-Based Walking on Stress and Affectivity in College Students
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作者 Ye Hoon Lee Juhee Hwang 《International Journal of Mental Health Promotion》 2025年第2期179-191,共13页
Objectives:Recent research has shown that college students experience high levels of stress from various sources,which contribute to heightened rates of psychological distress and make them particularly vulnerable to ... Objectives:Recent research has shown that college students experience high levels of stress from various sources,which contribute to heightened rates of psychological distress and make them particularly vulnerable to mental health issues.Hence,we conducted a study,aimed to analyze the influence of a mobile-based walking routine on mental health outcomes,such as perceived stress and positive and negative affect.Methods:The participants were divided into two groups:the walking group(N=23)and the control group(N=24).The walking group engaged in an approximately 25-min walking session for at least 3 days per week,which was carefully monitored and facilitated with the help of the Nike Run Club application.The statistical analysis of the quantitative data was carried out with the help of SPSS 25.0.In addition to calculating descriptive statistics,we conducted an independent samples t-test,a repeated-measures ANOVA,and a paired sample t-test to analyze the effectiveness of the intervention.Results:A repeated-measures ANOVA revealed that the walking group exhibited significant reductions in perceived stress(t=2.03,p=0.049,Cohen’s D=0.60)and negative affect(t=2.19,p=0.033,Cohen’s D=0.65)after the intervention,whereas the control group showed no significant changes across time in any of the proposed variables.Conclusion:The results of the study continue to be indicative of the positive effects of regular walking on perceived stress and negative affect,preserving its role as a straightforward and accessible tool for reducing stress and negative affect. 展开更多
关键词 Mental health low-intensity exercise mental health outcomes mobile intervention positive and negative affect
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The Effect of Leader Positive Affectivity on Team Member Turnover Intention and Team Organizational Citizenship Behavior
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作者 Lynda Jiwen Song Kelly Z. Peng +1 位作者 Chi-Sum Wong Weiku Wu 《Frontiers of Business Research in China》 2013年第3期311-332,共22页
This paper develops two models to investigate the effect of team leader positive affectivity (PA) on team member turnover intention and team organizational citizenship behavior (OCB), at the individual and team le... This paper develops two models to investigate the effect of team leader positive affectivity (PA) on team member turnover intention and team organizational citizenship behavior (OCB), at the individual and team levels, respectively. A two-wave longitudinal study was conducted involving a survey of 58 team leaders and 174 team members in a large Chinese telecom company across a three-month period. We found that team members' organization-based self-esteem (OBSE) at Time 1 mediates the relationship between team leader PA at Time 1 and team member turnover intention at Time 2, whereas team aggregated OBSE at Time 1 mediates the relationship between leader PA at Time1 and team OCB at Time 2. 展开更多
关键词 positive affectivity organization-based self-esteem (OBSE) teamorganizational citizenship behavior (OCB)
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青少年突发性感音神经性聋的临床特征及预后因素分析
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作者 姚丽 张烽 张卫拾 《中国耳鼻咽喉头颈外科》 2025年第5期332-334,共3页
目的 分析青少年突发性感音神经性聋(sudden sensorineural hearing loss,SSNHL)的临床特征及预后因素。方法 选取2019年9月~2023年12月南通市第三人民医院及南通市第一人民医院接受治疗且临床资料完整的80例青少年SSNHL患者,分析患者... 目的 分析青少年突发性感音神经性聋(sudden sensorineural hearing loss,SSNHL)的临床特征及预后因素。方法 选取2019年9月~2023年12月南通市第三人民医院及南通市第一人民医院接受治疗且临床资料完整的80例青少年SSNHL患者,分析患者的一般资料、临床特征、实验室检查结果、治疗及预后情况。结果 80例患者均以突发性单侧听力下降和(或)突发单侧耳鸣为主诉,72例(90.00%)伴耳鸣,40.28%伴高频耳鸣,59.72%伴低频耳鸣,55.00%伴耳闷胀感或耳周感觉异常,26例(32.50%)伴眩晕/头晕。听力损失分型以低频下降型为主(40.00%),听力损失程度以中度居多(56.25%)。实验室检查结果显示,中性粒细胞与淋巴细胞比值(NLR)>3.0者占65.00%,血小板-淋巴细胞比值(PLR)>150者占32.50%,纤维蛋白原>4.0 g/L者占43.75%。治疗后3个月随访显示,总体预后良好率为65.00%(52例),预后良好组平均听阈改善优于预后不良组(P<0.001)。7例(8.75%)在随访期间复发,其中6例为全聋型患者;2例(2.50%)出现轻度耳鸣加重。多因素Logistic回归分析表明,极重度听力损失、日均耳机使用>3 h、高频熬夜及NLR>3.0是预后不良的独立危险因素(P均<0.05)。结论 青少年SSNHL的发病与长时间使用耳机、高频熬夜及炎症-凝血异常等因素有关,极重度听力损失、不良生活习惯及炎症指标异常是预后不良的独立危险因素,提示青少年需重视听力保护,减少熬夜及噪声暴露。 展开更多
关键词 青少年(Adolescent) 听觉丧失 感音神经性(Hearing Loss Sensorineural) 听觉丧失 突发性(Hearing Loss Sudden) 预后(Prognosis) 临床特征(clinical characteristics) 影响因素(affecting factors)
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A Review of the Hydrodynamic Damping Characteristics of Blade-like Structures:Focus on the Quantitative Identification Methods and Key Influencing Parameters 被引量:1
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作者 Yongshun Zeng Zhaohui Qian +1 位作者 Jiayun Zhang Zhifeng Yao 《哈尔滨工程大学学报(英文版)》 2025年第1期21-34,共14页
Ocean energy has progressively gained considerable interest due to its sufficient potential to meet the world’s energy demand,and the blade is the core component in electricity generation from the ocean current.Howev... Ocean energy has progressively gained considerable interest due to its sufficient potential to meet the world’s energy demand,and the blade is the core component in electricity generation from the ocean current.However,the widened hydraulic excitation frequency may satisfy the blade resonance due to the time variation in the velocity and angle of attack of the ocean current,even resulting in blade fatigue and destructively interfering with grid stability.A key parameter that determines the resonance amplitude of the blade is the hydrodynamic damping ratio(HDR).However,HDR is difficult to obtain due to the complex fluid-structure interaction(FSI).Therefore,a literature review was conducted on the hydrodynamic damping characteristics of blade-like structures.The experimental and simulation methods used to identify and obtain the HDR quantitatively were described,placing emphasis on the experimental processes and simulation setups.Moreover,the accuracy and efficiency of different simulation methods were compared,and the modal work approach was recommended.The effects of key typical parameters,including flow velocity,angle of attack,gap,rotational speed,and cavitation,on the HDR were then summarized,and the suggestions on operating conditions were presented from the perspective of increasing the HDR.Subsequently,considering multiple flow parameters,several theoretical derivations and semi-empirical prediction formulas for HDR were introduced,and the accuracy and application were discussed.Based on the shortcomings of the existing research,the direction of future research was finally determined.The current work offers a clear understanding of the HDR of blade-like structures,which could improve the evaluation accuracy of flow-induced vibration in the design stage. 展开更多
关键词 Blade fatigue Hydrodynamic damping ratio Identification method Affecting factors Prediction formula
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海外英文期刊中国共产党研究成果题录(2017年)
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作者 王野(整理) 《国外理论动态》 北大核心 2025年第3期F0003-F0003,共1页
1.A.Mertha,“‘Stressing Out’:Cadre Calibration and Affective Proximity to the CCP in Reform-Era China”,The China Quarterly,Vol.229,2017,pp.64-85.2.B.L.McCormick,“Book Review of‘The Chinese Communist Party's C... 1.A.Mertha,“‘Stressing Out’:Cadre Calibration and Affective Proximity to the CCP in Reform-Era China”,The China Quarterly,Vol.229,2017,pp.64-85.2.B.L.McCormick,“Book Review of‘The Chinese Communist Party's Capacity to Rule:Ideology,Legitimacy and Party Cohesion’”,The China Journal,Vol.77,2017,pp.161-163. 展开更多
关键词 affective proximity chinese communist party party cohesion IDEOLOGY LEGITIMACY cadre calibration
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One-Dimensionality, Reliability, Distribution, and Correlates of the Brief Interactive Optimism Scale among University Teachers
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作者 José Moral de la Rubia Adrián Valle de la O Jesús Alfonso Beltran-Sanchez 《Open Journal of Medical Psychology》 2025年第1期41-70,共30页
The Brief Interactive Optimism Scale (BIOS-G), recently published, was developed to measure optimism based on the interactive personality styles theory in the general population of Mexican adults. It has been validate... The Brief Interactive Optimism Scale (BIOS-G), recently published, was developed to measure optimism based on the interactive personality styles theory in the general population of Mexican adults. It has been validated in both the general population in Mexico and other Latin American countries. This study aims to further consolidate the validity of the BIOS-G in a specific population. The objectives are to assess the psychometric properties of its items, validate its unidimensional structure, describe its distribution, verify its internal consistency, and examine its direct relationship with affective balance and positive affect, as well as its inverse relationship with emotional exhaustion and negative affect among Mexican university teachers. The BIOS-G, the CESQT emotional exhaustion subscale, and Scale of Positive and Negative Experience (SPANE) were administered to a non-probability sample of 213 Mexican university teachers. All items demonstrated discriminative power and internal consistency. The scale showed internal consistency (Green-Yang ordinal ω = 0.74 and McDonald ordinal ω = 0.88). The one-factor model presented good to acceptable fit to the data, with an average variance extracted of 0.65. Its distribution was negatively skewed and mesokurtic. The BIOS-G correlated directly with SPANE’s affective balance and positive emotional experiences and inversely with negative emotional experiences and emotional exhaustion, with moderate strengths of association. Its mean score was higher in men than in women and correlated positively with age. It is concluded that the BIOS-G demonstrates internal consistency and validity evidence among Mexican university teachers, and its use in this specific population is recommended. 展开更多
关键词 OPTIMISM Psychometric Properties Affective Balance Emotional Exhaustion University Teachers
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Leveraging CNN to Analyse Facial Expressions for Academic Engagement Monitoring with Insights from the Multi⁃Source Academic Affective Engagement Dataset
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作者 Noora C T Tamil Selvan P 《Journal of Harbin Institute of Technology(New Series)》 2025年第2期65-79,共15页
The dynamics of student engagement and emotional states significantly influence learning outcomes.Positive emotions resulting from successful task completion stand in contrast to negative affective states that arise f... The dynamics of student engagement and emotional states significantly influence learning outcomes.Positive emotions resulting from successful task completion stand in contrast to negative affective states that arise from learning struggles or failures.Effective transitions to engagement occur upon problem resolution,while unresolved issues lead to frustration and subsequent boredom.This study proposes a Convolutional Neural Networks(CNN)based approach utilizing the Multi⁃source Academic Affective Engagement Dataset(MAAED)to categorize facial expressions into boredom,confusion,frustration,and yawning.This method provides an efficient and objective way to assess student engagement by extracting features from facial images.Recognizing and addressing negative affective states,such as confusion and boredom,is fundamental in creating supportive learning environments.Through automated frame extraction and model comparison,this study demonstrates reduced loss values with improving accuracy,showcasing the effectiveness of this method in objectively evaluating student engagement.Monitoring facial engagement with CNN using the MAAED dataset is essential for gaining insights into human behaviour and improving educational experiences. 展开更多
关键词 emotion recognition student engagement facial expressions academic affective engagement MAAED
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Dying Virtually in War:The Affective Logic of Heroism in The Red Badge of Courage
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作者 Zicong Fan 《Cultural and Religious Studies》 2025年第1期42-50,共9页
For the following decades after the American Civil War,most American literature works presented the war in a romantic or sentimental manner.However,Stephen Crane’s The Red Badge of Courage gave it a naturalistic touc... For the following decades after the American Civil War,most American literature works presented the war in a romantic or sentimental manner.However,Stephen Crane’s The Red Badge of Courage gave it a naturalistic touch to tell the story of Henry Fleming,the main character,overcoming cowardice and becoming a hero.Through its revolutionary criticism of psychoanalysis and capitalism,Deleuze and Guattari contributed a legacy to postmodern philosophy with their affect philosophy,with virtuality at its pivot.Using the Deleuzo-Guattarian affective philosophy as a scope,it is clear that the maturing of Henry is in fact a sequence of two attempts of deterritorialization in the war,one failed and the other successful.The heroism Henry acquires is demonstrated in the form of virtual death and disconnection with meaning;nonetheless,his return to the society makes it an incomplete destratification,which,at the same time,indicates the opportunity to be a true hero is forever lost to Henry,lost on the battlefield. 展开更多
关键词 Stephen Crane affect theory Gilles Deleuze body without organs virtual death
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Traditional Chinese Medicine five-tone intelligent diagnosis and treatment system
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作者 ZHANG Jingzhi ZHANG Xingzhao +6 位作者 LIU Yao ZHOU Yuanzi WANG Site ZHOU Hanyu ZHU Hongguang LIN Facai XING Zhenlong 《Journal of Traditional Chinese Medicine》 2025年第3期702-710,共9页
Under the background of Artificial Intelligence(AI)and medical data informationization,intelligent Traditional Chinese Medicine(TCM)emerges as a new medical model.In this study,we introduce Affective Computing into th... Under the background of Artificial Intelligence(AI)and medical data informationization,intelligent Traditional Chinese Medicine(TCM)emerges as a new medical model.In this study,we introduce Affective Computing into the diagnosis and treatment process of TCM FiveTone Therapy.And proposes an intelligent diagnosis and treatment system including Five-tone diagnosis,monitoring and treatment,to achieve intelligent music matching.This system based on sound-image database for standardized collection and diagnosis of the Five-tone.The assessment and monitoring process are then visually presented,and an emotion analysis model is established by using affective computing.On the other hand,the system employs virtual reality(VR)visual media music and somatosensory music to play and intelligently match the Five-tone,solving issues in the clinical treatment of Five-tone therapy,such as the difficulties of quantifying emotional data,limited ability for generalization feature extraction,and relatively insufficient research on the intelligence of Five-tone therapy.This study can promote the integration of technology in the fields of healthcare,information,and music,thereby enhancing the accuracy of diagnosis and treatment.It holds significant importance in advancing the intelligent development of Traditional Chinese Medicine diagnosis and treatment. 展开更多
关键词 computer technology intelligent diagnosis and treatment affective computing music therapy Five-tone therapy Five notes
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Podzolised soils developed from slope deposits reveal relict frost features concealed by organic matter accumulation in the Stolowe Mountains(SW Poland)
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作者 Joanna Beata KOWALSKA 《Journal of Mountain Science》 2025年第8期2731-2746,共16页
Considering the comprehensive morphology and genesis of Podzols of the Stolowe Mountains,and the still-possible impact of frost actions and other processes related to cold climate on these soils,the main aims of this ... Considering the comprehensive morphology and genesis of Podzols of the Stolowe Mountains,and the still-possible impact of frost actions and other processes related to cold climate on these soils,the main aims of this study were to determine whether(i)the heterogeneous Podzols in the Stolowe Mountains underwent a phase of development in a cold climate,resulting in frost action features visible on the micromorphological level,and whether(ii)contemporary cryopedogenic traces are masked by the translocation of organic matter due to the podzolisation process.Four soil profiles were investigated,revealing distinct layers corresponding to different periods of soil formation.Under field observation,no explicit frost-related characteristics were observed.Nevertheless,micromorphological analysis revealed cappings of fine materials on grains or peds,as well as development of granostriated(or any striated)b-fabric that resulted from the alternating effects of thawing and freezing processes.Moreover,micromorphological analysis revealed the presence of microstructures that could be the result of cryogenic processes,such as platy,angular blocky and lenticular features,as well as plane,vugh and star-shaped void types.The translocation of organic matter during podzolisation modified or concealed the frost-related features that developed during the late Pleistocene and early Holocene.This is evident,for instance,in the accumulation of organic matter on cappings and within soil voids,which further hinders the identification of frost-related characteristics and the interpretation of the soil's evolution.Macromorphological observations enhanced with micromorphological analyses revealed three distinct layers:(i)a young upper layer composed of loose,sandy material;(ii)a deeper layer containing a spodic horizon with frost actions,involving pedofeatures associated with the Pleistocene cold climate and(iii)a deeper subsoil basal layer.The abovementioned microstructures,combined with lithological discontinuity,support the hypothesised polygenetic origin of Podzols in the studied region. 展开更多
关键词 Cryogenesis Frost action Frost affected microfeatures Organic matter translocation
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Construction of a Theoretical Framework for the Identification and Treatment of Affective Disorders in Traditional Chinese Medicine Based on the“Five-organ View of Unity”
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作者 Xu Yang Jiaming Shi +1 位作者 Chuanxiang Wang Jiazhuo Li 《Expert Review of Chinese Medical》 2025年第2期7-9,共3页
This paper is dedicated to constructing a theoretical framework for the identification and treatment of affective disorders in traditional Chinese medicine based on the“five-organ view”.Through in-depth analysis of ... This paper is dedicated to constructing a theoretical framework for the identification and treatment of affective disorders in traditional Chinese medicine based on the“five-organ view”.Through in-depth analysis of the theoretical connotation of the“five-organ concept”,we discussed the characteristics of the five-organ mechanism of affective-philosophical disorders in detail,systematically constructed a system of identification based on the association of the five organs,and proposed a comprehensive and holistic treatment strategy.The results of the study clearly show that the theoretical framework can provide systematic theoretical guidance for the clinical diagnosis and treatment of affective-philosophical disorders in Chinese medicine,help to improve the diagnostic and therapeutic effects of affective-philosophical disorders,and provide new ideas and methods for the theoretical development and clinical practice of affective-philosophical disorders in Chinese medicine,which is of important theoretical and practical significance,and can further promote the modernization of the development of affective-philosophical disorders in Chinese medicine. 展开更多
关键词 five-organ view affective disorder traditional Chinese medicine diagnosis and treatment
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Preliminary study on the efficacy of intermittent theta burst stimulation (iTBS) in adolescents with affective disorders, with and without antidepressants
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作者 Peiying Li Yuwei Xia +9 位作者 Xinyao Liu Shiqi Yuan Chengfeng Chen Kun Xie Wuyou Bao Shiying Wang Ru Hao Cuixia An Ling Sun Bin Zhang 《General Psychiatry》 2025年第3期220-225,共6页
To the editor:A wide range of affective disorders affects people of all ages globally and contributes significantly to the global disease burden.1 In China,a nationwide survey found a 3.21% prevalence of affective dis... To the editor:A wide range of affective disorders affects people of all ages globally and contributes significantly to the global disease burden.1 In China,a nationwide survey found a 3.21% prevalence of affective disorders in children and adolescents,with major depressive disorder(MDD)at 2.00%and bipolar disorder at 0.86%. 展开更多
关键词 major depressive disorder mdd adolescents bipolar disorder nationwide survey affective disorders intermittent theta burst stimulation antidepressants
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环境服务过度对消费者情感反应影响的探索性研究
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作者 宫翔宇 《消费与品牌传播》 2025年第6期0030-0032,共3页
消费者在服务接触过程中直接感知服务质量,其情感反应(AffectiveResponse)亦在此过程中形成,因此,服务接触对于服务行业的高质量发展具有重要意义。服务接触涵盖人员接触(PersonnelContact)与环境接触(EnvironmentalContact)两个维度。... 消费者在服务接触过程中直接感知服务质量,其情感反应(AffectiveResponse)亦在此过程中形成,因此,服务接触对于服务行业的高质量发展具有重要意义。服务接触涵盖人员接触(PersonnelContact)与环境接触(EnvironmentalContact)两个维度。现有研究主要集中在人员接触中的过度服务(Over-Service)对消费者情感的影响,而对环境接触中的过度服务如何影响消费者情感反应的研究相对较少。本文使用焦点小组(FocusGroup)和实验设计法(ExperimentalDesign),研究环境服务过度对消费者情感反应的影响,并探究消费者的最优刺激水平如何调节环境服务水平对情感反应的影响。研究表明,不同的接触环境会导致消费者不同的消费情感反应,高环境服务水平降低了消费者正面情感反应并提高了负面情感反应,消费者个人的低最优刺激水平或高最优刺激水平没有对环境服务和情感反应的关系产生影响。 展开更多
关键词 服务接触 环境接触 刺激-反应理论(S-R Theory) 情感效价(Affective Valence)
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A novel ejaculation-sparing surgical technique in the patient with primary bladder neck obstruction:Results of a single-arm cohort
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作者 Marco Dellabella Luca Gasparri +5 位作者 Antonio Vinci Massimo Maurici Redi Claudini Alessandro Branchi Michele Pucci Edoardo Agostini 《Asian Journal of Urology》 2025年第2期278-280,共3页
Dear Editor,Primary bladder neck obstruction(PBNO)affects approximately 28%–54%of men[1].Its etiology remains unclear.Symptoms of PBNO present as voiding(e.g.,decreased force of stream,hesitancy,intermittent stream,a... Dear Editor,Primary bladder neck obstruction(PBNO)affects approximately 28%–54%of men[1].Its etiology remains unclear.Symptoms of PBNO present as voiding(e.g.,decreased force of stream,hesitancy,intermittent stream,and incomplete emptying),storage(e.g.,frequency,urgency,urge incontinence,and nocturia),or a combination of both[2].Untreated PBNO can lead to bladder dysfunction,bladder diverticula,hydronephrosis,and impaired renal function[3]. 展开更多
关键词 impaired renal function ejaculation sparing surgical technique storage symptoms bladder dysfunctionbladder diverticulahydronephrosisand voiding symptoms bladder neck obstruction pbno affects primary bladder neck obstruction
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Dynamics of Slope Runoff and Soil Erosion of Different Forest Types in Karst Depression 被引量:6
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作者 张喜 连宾 +2 位作者 尹洁 吴永波 崔迎春 《Agricultural Science & Technology》 CAS 2010年第3期166-171,共6页
[Objective] The research was aimed to study the dynamics of slope runoff and soil erosion in different forest types in karst depression.[Method] Precipitation observation sites at the bottom of karst depression and ru... [Objective] The research was aimed to study the dynamics of slope runoff and soil erosion in different forest types in karst depression.[Method] Precipitation observation sites at the bottom of karst depression and runoff observation sites in different forest types were established to monitor regularly the main indices changes of runoff and soil erosion at fixed position in 4 years.[Result] The surface runoff of different forest types appeared singer peak from February to November,with lowest valley from June to July.The runoff coefficient appeared double peaks from February to May and from July to September.The changing coefficient of runoff appeared three peaks from March to April,from July to August and from September to November.The silt concentration appeared one peak from March to May and The erosion modulus appeared double peaks from March to May and from June to August.Runoff showed annually reduced trend with the growth of forests and the development of vegetation layer's structure.There was a positive correlation between the runoff and its silt concentration in different forest types.Precipitation and evaporation had notable positive correlation with the runoff,and similar correlation but not marked with silt concentration.The fitting analysis results of surface runoff and erosion modulus showed that rocky desertification intensified the unevenness of surface runoff and increased the surface runoff and erosion modulus.The penetrability of surface soil in new planted forest was lower than that in young forest,and that in surface soil of different forest types was higher than in bottom soil.[Conclusion] The research provided theoretical basis for the biological management technologies of water and soil conservation and the control of karst rocky desertification in karst regions. 展开更多
关键词 Karst depression Forest types RUNOFF Erosion modulus Affecting factors
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Microstructures and mechanical properties of laser welded wrought fine-grained ZK60 magnesium alloy 被引量:2
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作者 严红革 赵嫱 +2 位作者 陈瓶 陈吉华 苏斌 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第2期389-396,共8页
Fine-grained ZK60 magnesium alloy sheets of 2.0 mm in thickness were successfully joined by laser beam welding (LBW). The effects of welding parameters including laser power and welding speed on the microstructures ... Fine-grained ZK60 magnesium alloy sheets of 2.0 mm in thickness were successfully joined by laser beam welding (LBW). The effects of welding parameters including laser power and welding speed on the microstructures and mechanical properties of the joints were investigated. A sound bead, with the ultimate tensile strength (UTS) of 300 MPa and elongation of 12.0%, up to 92.5% and 65% of those of the base metal, respectively, is obtained with the optimized welding parameters. No liquation cracking is visible in the partially melted zone (PMZ) owing to the inhibitory action of the fine dispersed precipitates and the fine-grained microstructure in the as-rolled magnesium alloy sheets. The fusion zone (FZ) is featured with the equiaxed dendritic grains of the average grain size about 8 μm, which are similar to those in the heat affected zone (HAZ), and this contributes to the relatively high joint efficiency. 展开更多
关键词 ZK60 magnesium alloy fine grain size laser beam welding heat affected zone partially melted zone
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Oxidation behavior of Zr-containing Ti_2AlNb-based alloy at 800°C 被引量:2
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作者 党薇 李金山 +1 位作者 张铁邦 寇宏超 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第3期783-790,共8页
The oxidation behavior of Ti?22Al?(27?x)Nb?xZr (x=0, 1, 6) alloys at 800 °C for exposure time up to 100 h was examined. It is shown that oxidation rate of experimental alloys obeys the parabolic kinetics. Ti?22Al... The oxidation behavior of Ti?22Al?(27?x)Nb?xZr (x=0, 1, 6) alloys at 800 °C for exposure time up to 100 h was examined. It is shown that oxidation rate of experimental alloys obeys the parabolic kinetics. Ti?22Al?26Nb?1Zr alloy demonstrates more excellent oxidation resistance than the other two alloys. The main oxidation products are TiO2, Al2O3 and AlNbO4 phases for all these alloys. For the Ti?22Al?26Nb?1Zr alloy, Zr addition can modify the growth mechanism of oxide scale, which can effectively hinder the diffusion of oxygen. Whereas, reaction of Zr with oxygen leads to the formation of ZrO2 precipitates for the Ti?22Al?21Nb?6Zr alloy, which promotes the oxygen ingress into the substrate. Meanwhile, oxidation affected zones, including internal-oxidation layer and oxygen-enriched zone, are present beneath the outmost oxide scale. The difference in these zones is derived from the phase constitution in the starting Ti?22Al?(27?x)Nb?xZr (x=0, 1, 6) alloys. 展开更多
关键词 oxidation behavior Ti2AlNb-based alloy ZR oxide scale oxidation affected zone
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The Evolution of Drought in China and Its Impact on Agriculture in Recent Years 被引量:5
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作者 许朗 李梅艳 《Agricultural Science & Technology》 CAS 2011年第11期1699-1702,共4页
[Objective] To research the evolution of drought in China and its impact on agriculture in recent years. [Method] We analyzed land area covered, area affected, and disaster rate arising from severe drought occurring i... [Objective] To research the evolution of drought in China and its impact on agriculture in recent years. [Method] We analyzed land area covered, area affected, and disaster rate arising from severe drought occurring in China in the period 1978-2008, in conjunction with the planting area of crops in China and forcing of drought on the planting area of crops. [Result] In recent years, a large portion of provinces and cities in China, especially the southern areas, the drought has not yet been eased, but tends to deteriorate; since 1978, the area affected in China occasioned by drought has been rapidly mounting, and total crop failure area caused by drought, on the whole, also assumes trend of rise. In the mean time, population explosion and economic development are responsible for dwindling of planting area of grain, and tardy rise in total grain yield. [Conclusion] Constructing harmonious valley and achieving concordant coexistence between human and water, is to regulate human behaviors and further strengthen related ecological protection work, on the basis of scientifically understanding and correctly harnessing natural law. 展开更多
关键词 DROUGHT Area affected Grain yield AGRICULTURE
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Available Contents of Trace Nutrient Element and Factors Affecting Their Availability in Western Jilin 被引量:5
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作者 施宪 王冬艳 +2 位作者 李月芬 靳克 郭珍 《Agricultural Science & Technology》 CAS 2010年第5期73-76,共4页
Based on the assay of the total content and available content of the trace nutrient elements and the soil pH and organic matter of the soil samples,the characteristic of the available content of the trace nutrient ele... Based on the assay of the total content and available content of the trace nutrient elements and the soil pH and organic matter of the soil samples,the characteristic of the available content of the trace nutrient elements and their affecting factors are studied. The results show that the available B in western Jilin is in a middle level,the content in Nong'an is higher than that in the others; the available Mn is extremely abundant; the available Cu in Nong'an is obviously higher than other areas,and the content in Da'an differs greatly; the available Zn is in a middle level; the severe shortage of available Mo differs between different areas; and the available Fe is extremely abundant. The available Mn,Cu and Fe have significantly positive correlation with their total content; the available B has significantly positive correlation with pH,and Zn has obviously negative correlation with pH; the available Mn and Fe had significantly positive correlation with soil organic matter. 展开更多
关键词 Trace nutrient element Available content The affecting factors Western Jilin
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在时间的风暴中叙述——读余华的《兄弟》 被引量:8
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作者 张旭东 《中国现代文学研究丛刊》 CSSCI 北大核心 2021年第2期1-37,共37页
《兄弟》借助命名和表意的真实性、通过一个栩栩如生的三维形象,对行将成为历史世界的尘世生活进行了整体性摹仿。在作品中,商品等价交换原则作为"肉感的抽象"被确立为当代经济生活和社会变迁的基本寓言形象。同时,兄弟、夫... 《兄弟》借助命名和表意的真实性、通过一个栩栩如生的三维形象,对行将成为历史世界的尘世生活进行了整体性摹仿。在作品中,商品等价交换原则作为"肉感的抽象"被确立为当代经济生活和社会变迁的基本寓言形象。同时,兄弟、夫妻这样的基本人伦纽带则被用作负载时代断裂和价值冲突的道德—情感范畴和叙事框架。作品通过写实性地描摹堕落和亵渎神明的世俗化进程,在讽喻的层面为理想、净化和救赎预留了空间。《兄弟》的"故事编码"和"情动编码"共同为这样的总体性表现提供了可能性。面对百年历史风暴带来的混乱和方向感的失去,小说借助"意料之外、情理之中"的集体性叙事口吻和精准而"放肆"的文学语言,为当代读者提供了整理经验的叙事性智慧。 展开更多
关键词 余华 《兄弟》 集体叙事人 情动(Affect)
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