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The Relationship between Psychological Vulnerability,Aging Attitudes and Life Meaning in Elderly Patients with Comorbidities
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作者 Jiaojiao Wu Dou Fu +8 位作者 Lili Zhang Xiangying Xie Xinmei Wang Xiangying Shen Shanshan Liu Xu Xu Hui Cheng Xiaojie Ma Doudou Lin 《International Journal of Mental Health Promotion》 2024年第11期897-904,共8页
Background:With the rapid aging of China’s population and the increasing prevalence of comorbidities in the elderly,psychological crises have become more common.This study aims to investigate the present status of ps... Background:With the rapid aging of China’s population and the increasing prevalence of comorbidities in the elderly,psychological crises have become more common.This study aims to investigate the present status of psychological vulnerability,aging attitudes,and life meaning in elderly patients with comorbidities.Methods:A total of 685 elderly inpatients and outpatients at Renmin Hospital of Wuhan University between July and December 2022 were selected using the simple random sampling method.Social demographic data were collected,and the Attitudes to aging Questionnaire(AAQ),the Chinese Life Meaning Questionnaire(C-MLQ),and the Psychological Vulnerability Scale(C-PVS)were used for the analysis.A total of 685 questionnaires were received,and 602 valid questionnaires were collected,with an effective rate of 87.88%.Data analysis was performed using SPSS V25.0 and AMOS V24.0.Results:The total scores of psychological vulnerability,aging attitudes,and life meaning were 69.4±12.8,80.2±13.5 and 39.2±8.3,respectively.The psychological vulnerability was significantly negatively correlated with life meaning and aging attitudes(r=-0.351,-0.264;p<0.01).There was a significant positive correlation between aging attitudes and life meaning(r=0.515;p<0.01).Life meaning played a partial mediating role between psychological vulnerability and aging attitudes(β=3.070,p<0.05).Conclusion:This study found that the psychological vulnerability in elderly patients with comorbidities was at the lower level,which was related to the elderly patients’aging attitudes and their current status of life meaning.The level of psychological vulnerability in elderly patients with senile-related comorbidities needs to be further improved.Medical workers should pay attention to the psychological vulnerability of elderly patients and improve the identification of psychological crises of such patients. 展开更多
关键词 The elderly COMORBIDITY life meaning psychological vulnerability aging attitudes
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Effects of supervised movie appreciation on the improvement of college students’ life meaning sense 被引量:15
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作者 Xinqiang Wang Dajun Zhang +2 位作者 Jinliang Wang Hui Xu Min Xiao 《Health》 2010年第7期804-810,共7页
The purpose of this study was to explore the effects of supervised movie appreciation on improving the life meaning sense among college students. The intervention combined by “pre-video, post counseling” was conduct... The purpose of this study was to explore the effects of supervised movie appreciation on improving the life meaning sense among college students. The intervention combined by “pre-video, post counseling” was conducted on the experimental group, while the control group received no intervention. Results have shown that the scores on the subscales of will to meaning, life purpose, life control, suffer acceptance and on the total scale have improved significantly. No gender difference was found on the intervention effect, and participants receiving intervention maintained higher level on related subscales a week later, indicating that supervised movie appreciation is an effective way to improve the life meaning sense among college students. 展开更多
关键词 College Students life meaning SENSE Supervised MOVIE APPRECIATION SUICIDE Prevention MENTAL Health Education
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Meaning in life and well-being of older stroke survivors in Chinese communities: Mediating effects of mastery and self-esteem 被引量:1
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作者 Jingjin Shao Jiliang Shen +1 位作者 Qinghua Zhang Tian Lin 《Health》 2013年第4期743-748,共6页
The study aims to examine the role of mastery and self-esteem as a potential mediator of the relationship of meaning in life and well-being among older Chinese stroke survivors. A cross-sectional study was conducted i... The study aims to examine the role of mastery and self-esteem as a potential mediator of the relationship of meaning in life and well-being among older Chinese stroke survivors. A cross-sectional study was conducted in 214 community-dwelling older stroke survivors (128 men and 86 women), ranging from 60 years to 88 years old. The meaning in life, mastery, self-esteem and subjective well-being were measured. The results indicated that: 1) The meaning in life and subjective well-being of stroke survivors were significantly positive correlated;2) Mastery and self-esteem played partial mediating roles between existential vacuum and subjective well-being;Self-esteem played full a mediating role between suffer acceptance and subjective well-being;Mastery played a full mediating role between life control and subjective well-being;Mastery played a partial mediating role between death acceptance and subjective well-being;Self-esteem also played a partial mediating role between mastery and subjective well-being. 展开更多
关键词 STROKE meaning in life MASTERY SELF-ESTEEM WELL-BEING
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Mindfulness Associates Life Satisfaction:The Mediating Role of Internal Control and the Presence of Meaning in Life
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作者 Zihui Yuan Yanhui Xiang Ziyuan Chen 《International Journal of Mental Health Promotion》 2021年第1期15-25,共11页
This study explored the internal mechanism of the effect of mindfulness on life satisfaction from the perspective of logotherapy theory and achievement attribution theory.We recruited 1021 college students using a com... This study explored the internal mechanism of the effect of mindfulness on life satisfaction from the perspective of logotherapy theory and achievement attribution theory.We recruited 1021 college students using a combination of random sampling and cluster sampling.They completed the relevant questionnaire.The results showed that,from the perspective of logotherapy theory,wefind that the presence of meaning in life is an important intermediary between mindfulness and life satisfaction.From the perspective of achievement attribution theory,we found that internal control was an important intermediary between mindfulness and life satisfaction.In addition,we also found the chain mediating path that mindfulness positively predicted life satisfaction by influencing internal control and then influencing the presence of meaning in life.This study proves for thefirst time that the theory of logotherapy and achievement attribution explain the internal mechanism of the relation of mindfulness on life satisfaction.This study provides an important reference for how to effectively improve life satisfaction from the perspective of mindfulness. 展开更多
关键词 MINDFULNESS life satisfaction the presence of meaning in life internal control structural equation model
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Depression by the Theory of Breathing and Finding Meaning of Life
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作者 Nadia Khalid Al-Khalidi Hamad Al-Tayyar 《Journal of Behavioral and Brain Science》 2021年第12期286-300,共15页
This study aimed to examine the relationship of finding meaning to life with the level of depression and investigates the effect of using breathing theory in treating or reducing depression in a sample of individuals ... This study aimed to examine the relationship of finding meaning to life with the level of depression and investigates the effect of using breathing theory in treating or reducing depression in a sample of individuals suffering from depression in the Kuwait Mental Health Center. In order to achieve these objectives, the researcher used the descriptive and analytical approach through an applied questionnaire on the study sample which consist of (380) individuals and the quasi-experimental approach by dividing the study sample individuals into two groups;control group consisted of (190) individuals and experimental group consist of (190) individuals. Also, the researcher developed meaning of life scale and breathing strategy, also used beck depression inventory scale. The study found a set of results, there is a negative relationship between finding meaning in life and depression and there are statistically significant differences between the members of the two groups due to the use of the breathing strategy, in favor of the experimental group. In the light of this result, the study came out with a set of recommendations, the most important of which are holding training and educational courses for depressed patients on ways and methods of finding meaning in life, as these courses have the benefit in reducing the level of depression among patients. 展开更多
关键词 DEPRESSION Theory of Breathing Finding meaning of life KUWAIT
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Meaning in Life and Mental Health Issues in Older Adults:A Meta-Analysis
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作者 Shu Nie Jiyoon Lim +2 位作者 Xintian Xu Lei Zheng Yiqun Gan 《International Journal of Mental Health Promotion》 2023年第9期971-984,共14页
This study aims to be the first to use meta-analysis to explore the relationship between meaning in life(MIL)and mental health issues among older adults.A meta-analysis was conducted using six databases,resulting in 1... This study aims to be the first to use meta-analysis to explore the relationship between meaning in life(MIL)and mental health issues among older adults.A meta-analysis was conducted using six databases,resulting in 16 studies with 5,074 participants in total.The“metacor”and“forestplot”packages in R-Studio were used for data analysis.The total effect was calculated using a random-effects model,with I2=86%in the heterogeneity test.The results showed a moderate negative correlation between MIL and mental health issues among older adults,with an average effect of−0.37.Five potential moderating variables were examined:the conceptualization of MIL(value vs.purpose),region(Asian vs.Western countries),residence status(community vs.nursing home vs.hospital),types of mental health issues,and evaluation methods(clinical vs.non-clinical).The first four had no significant moderating effect.The mean correlation coefficients between mental health issues and value/purpose were−0.49/−0.33;the mean correlation coefficients in Asian countries and Western countries were−0.48 and−0.34;the mean correlation coefficients among participants living in community/nursing home/mixed status were−0.33/−0.40/−0.40;the mean correlation coefficients between MIL and depression/others were−0.37/−0.35;however,the negative relationship between MIL and mental health issues was stronger when non-clinical evaluations(self-report only)were used.Specifically,the mean correlation coefficient for non-clinical evaluations was−0.42 and for clinical evaluations was−0.29.This study is the first meta-analysis to identify the negative correlation between older adults’MIL and mental health issues.Significant moderating effects of evaluation methods were found. 展开更多
关键词 meaning in life mental health issues DEPRESSION ANXIETY META-ANALYSIS older adults
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The Ethics and the Meaning of Life among College Students
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作者 Maria Helena de Agrela Goncalves Jardim Geraldo Bezerra da Silva Junior +2 位作者 Marcia Lucia Sousa Dias Alves Bruna Raquel Figueira Ornelas de Gouveia Rita Baptista Silva 《International Journal of Clinical Medicine》 2018年第4期221-233,共13页
The concern of the ethics and the meaning of life in young adults became universal and are present in all contexts of human life. Such universality is due to the development of modern rationality, to establish a relat... The concern of the ethics and the meaning of life in young adults became universal and are present in all contexts of human life. Such universality is due to the development of modern rationality, to establish a relationship between the intrinsic theoretical dimensions (scientific) and practical dimensions (ethical), originated that are present in the own array of knowledge. This descriptive cross-sectional study, aims to identify the values of the ethical dimension and meaning of life defended by the college students of the Universities of Madeira, Portugal and Fortaleza, Brazil. The sample consists of 605 University students (Madeira = 225 and Fortaleza = 380), with an average age of 21 years and a standard deviation of 2. We used the questionnaire on values (adapted from the European Values Survey). Most of the young people referred to have a religion (60% wood and 78.4% stronghold), being the most Catholic, however, present in your frequency disinterest and, yet, in Brazil there is a greater diversity of religions. Supporting the intervention of religious institutions in situations of everyday life is accepted mostly by Brazilians, with the exception of politics (35.5%). On the other hand, the university students of the University of Madeira understand that Religious Institutions should only give their opinion on racial discrimination (76.6%). Believe in God (90.8% and 55.1% Stronghold) and Soul (80.3% and 66.4% Stronghold) are beliefs more referred to by college students. These results are intended to contribute in the field of research on ethical values and meaning of life in young people. This study contributes to future comparative research among university students and to developing strategic programs in education and health, increasing the success and excellence in the formation of a full citizenship, preventing the fanaticisms and the social discrimination that today devastate the collective globally. 展开更多
关键词 VALUES ETHICS meaning of life Young Adults College Students Questionnaire on Values (QSV)
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Striving Is the Essence of Life——An Analysis of the Lord of the Rings
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作者 王琳 《科技信息》 2011年第5期I0173-I0173,共1页
This paper sets its view on the exploration of practical and immediate significance of this trilogy through the struggle of human beings to fight against dark forces,and the glories of human nature that are demonstrat... This paper sets its view on the exploration of practical and immediate significance of this trilogy through the struggle of human beings to fight against dark forces,and the glories of human nature that are demonstrated in this arduous course.Reading this paper,modern Man in such a fiercely competitive society may gain both instruction and inspiration to become the lord of his own heart. 展开更多
关键词 文学作品 文学评论 社会发展 英语 小说
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Fatigue Life Prediction of Rolling Bearings Based on Modified SWT Mean Stress Correction 被引量:3
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作者 Aodi Yu Hong-Zhong Huang +2 位作者 Yan-Feng Li He Li Ying Zeng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2021年第6期240-251,共12页
The existing engineering empirical life analysis models are not capable of considering the constitutive behavior of materials under contact loads;as a consequence,these methods may not be accurate to predict fatigue l... The existing engineering empirical life analysis models are not capable of considering the constitutive behavior of materials under contact loads;as a consequence,these methods may not be accurate to predict fatigue lives of roll-ing bearings.In addition,the contact stress of bearing in operation is cyclically pulsating,it also means that the bear-ing undergo non-symmetrical fatigue loadings.Since the mean stress has great effects on fatigue life,in this work,a novel fatigue life prediction model based on the modified SWT mean stress correction is proposed as a basis of which to estimate the fatigue life of rolling bearings,in which,takes sensitivity of materials and mean stress into account.A compensation factor is introduced to overcome the inaccurate predictions resulted from the Smith,Watson,and Topper(SWT)model that considers the mean stress effect and sensitivity while assuming the sensitivity coefficient of all materials to be 0.5.Moreover,the validation of the model is finalized by several practical experimental data and the comparison to the conventional SWT model.The results show the better performance of the proposed model,especially in the accuracy than the existing SWT model.This research will shed light on a new direction for predicting the fatigue life of rolling bearings. 展开更多
关键词 Rolling bearings Fatigue life prediction Modified SWT model mean stress correction
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A Novel Multiple Dependent State Sampling Plan Based on Time Truncated Life Tests Using Mean Lifetime 被引量:1
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作者 Pramote Charongrattanasakul Wimonmas Bamrungsetthapong Poom Kumam 《Computers, Materials & Continua》 SCIE EI 2022年第12期4611-4626,共16页
The design of a new adaptive version of the multiple dependent state(AMDS)sampling plan is presented based on the time truncated life test under the Weibull distribution.We achieved the proposed sampling plan by apply... The design of a new adaptive version of the multiple dependent state(AMDS)sampling plan is presented based on the time truncated life test under the Weibull distribution.We achieved the proposed sampling plan by applying the concept of the double sampling plan and existing multiple dependent state sampling plans.A warning sign for acceptance number was proposed to increase the probability of current lot acceptance.The optimal plan parameters were determined simultaneously with nonlinear optimization problems under the producer’s risk and consumer’s risk.A simulation study was presented to support the proposed sampling plan.A comparison between the proposed and existing sampling plans,namely multiple dependent state(MDS)sampling plans and a modified multiple dependent state(MMDS)sampling plan,was considered under the average sampling number and operating characteristic curve values.In addition,the use of two real datasets demonstrated the practicality and usefulness of the proposed sampling plan.The results indicated that the proposed plan is more flexible and efficient in terms of the average sample number compared to the existing MDS and MMDS sampling plans. 展开更多
关键词 Adaptive version of multiple dependent state sampling plan time truncated life test quality level weibull distribution mean lifetime
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Rags to Riches:Positive Psychological Attributes and Spiritual Factors Creating Meaning
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作者 Daniel P Knobel 《Psychology Research》 2020年第9期325-337,共13页
In mainstream media,the common perception is that“rags to riches”stories only consist of becoming“rich and famous”.This paper aims to reflect on the phenomenological experiences of 19 South Africans who significan... In mainstream media,the common perception is that“rags to riches”stories only consist of becoming“rich and famous”.This paper aims to reflect on the phenomenological experiences of 19 South Africans who significantly were able to move beyond their own significant low point experiences(imaginary:“rags”)into high point experiences(imaginary:“riches”).The presence of a meaningful experience indicates a turning point divide between low and high.Having the right positive psychological attributes supports the change required to move beyond your circumstances.The study explored the deeper internal psychological attributes within a person along with spiritual factors that could affect change in a person’s life to have an improved and fulfilling life.An existential-phenomenological-humanistic approach,from a positive psychological theoretical viewpoint,was used.The attributes were identified as themes through thematic analysis.The study found that meaning was the most prevalent feature in all respondents’lives to indicate a turn away from,sometimes intense,negative experiences.The presence of a positive mind-set(including positive attitude,self-thought,and self-talk)played a dominant role in affecting change,while the presence of faith and religious belief indicated the spiritual factors associated with change. 展开更多
关键词 CHANGE life experience meaning positive psychology psychological attributes SPIRITUAL
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基于ICA K-Means的产品口碑演化聚类与营销分析 被引量:1
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作者 李红 潘娜 《北京航空航天大学学报(社会科学版)》 2016年第6期45-53,共9页
对于产品而言,其在线口碑的活跃度是非常具有代表性的一个指标。在线口碑活跃度的高低,直接揭示产品的生命周期演化模式,对于产品生命周期有全面的了解有助于决策者制定营销计划以及战略。但由于产品在线评论的高维性和复杂性,使得其聚... 对于产品而言,其在线口碑的活跃度是非常具有代表性的一个指标。在线口碑活跃度的高低,直接揭示产品的生命周期演化模式,对于产品生命周期有全面的了解有助于决策者制定营销计划以及战略。但由于产品在线评论的高维性和复杂性,使得其聚类的难度加大。所以,在普通的K均值算法的基础上引入独立成份分析,对异类产品之间或同类产品在线口碑的活跃度之间进行聚类分析,可以大大降低复杂性和提升聚类准确性;同时深入分析提取出的产品生命周期曲线,有效提升在线口碑信息在电子商务营销管理与决策支持中的作用,深化在线口碑活跃度的管理学视角研究。 展开更多
关键词 在线评论 时间序列聚类 K均值 独立成分分析 产品生命周期
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基于K-means与技术生命周期的技术预见方法研究——以水体净化技术为例 被引量:3
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作者 简兆权 赵芸潼 张少轩 《科技进步与对策》 CSSCI 北大核心 2022年第6期11-20,共10页
预见水体净化技术发展趋势有助于实现“美丽中国”建设目标。已有技术预见方法缺乏定量客观依据,相关评判指标也不够全面。从Innography数据库检索2008-2019年发布的3552个污水处理技术专利,运用多维标度分析和K均值聚类法,基于专利静... 预见水体净化技术发展趋势有助于实现“美丽中国”建设目标。已有技术预见方法缺乏定量客观依据,相关评判指标也不够全面。从Innography数据库检索2008-2019年发布的3552个污水处理技术专利,运用多维标度分析和K均值聚类法,基于专利静态指标分析专利技术发展潜力,采用技术生命周期分析法从动态视角判断每类技术的发展前景。研究发现:①污水与污染物双重回收可持续性技术在多个静态评价指标方面均优于其它技术,且处于从引入期到发展期的过渡阶段,具有较大的发展空间;②以去除特定污染物为目标的功能单一技术已被淘汰,市场开始应用污水处理原理不同的多种技术联合处理方式。据此,提出企业应选择污染物回收率高、二次污染物排放少、整体“净效益”为正的污水处理技术,并采取新旧技术联合处理方式降低企业采用新技术的转换成本。 展开更多
关键词 K均值聚类 技术生命周期 技术预见 技术专利 水体净化
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Residual Fatigue Life Prediction of Ball Bearings Based on Paris Law and RMS 被引量:6
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作者 XU Dong HUANG Jin'e +3 位作者 ZHU Qin CHEN Xun XU Yongcheng WANG Shuang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2012年第2期320-327,共8页
Paris law can reflect the failure mechanism of materials and is usually used to be a method to predict fatigue life or residual fatigue life.But the variable which can represent the health of machine is hardly measure... Paris law can reflect the failure mechanism of materials and is usually used to be a method to predict fatigue life or residual fatigue life.But the variable which can represent the health of machine is hardly measured on line.To a degree,the difficulty of on-line application restricts the scope of application of Paris law.The relationship between characteristic values of vibration signals and the variable in the Paris equation which can describe the health of machine is investigated by taking ball bearings as investigative objects.Based on 6205 deep groove ball bearings as a living example,historical lives and vibration signals are analyzed.The feasibility of describing that variable in the Paris equation by the characteristic value of vibration signals is inspected.After that vibration signals decomposed by empirical mode decomposition(EMD),root mean square(RMS) of intrinsic mode function(IMF) involving fault characteristic frequency has a consistent trend with the diameter of flaws.Based on the trend,two improved Paris models are proposed and the scope of application of them is inspected.These two Paris Models are validated by fatigue residual life data from tests of rolling element bearings and vibration signals monitored in the process of operation of rolling element bearings.It shows that the first improved Paris Model is simple and plain and it can be easily applied in actual conditions.The trend of the fatigue residual life predicted by the second improved Paris model is close to the actual conditions and the result of the prediction is slightly greater than the truth.In conclusion,after the appearance of detectable faults,these improved models based on RMS can predict residual fatigue life on line and a new approach to predict residual fatigue life of ball bearings on line without disturbing the machine running is provided. 展开更多
关键词 residual fatigue life Paris law prediction model intrinsic mode function(IMF) root mean square(RMS)
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基于改进的K-means和BP-Adaboost的寿险客户流失预测算法研究 被引量:6
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作者 闫春 张馨予 《山东科技大学学报(自然科学版)》 CAS 北大核心 2022年第1期54-65,共12页
针对寿险行业的客户流失问题,构建基于外在、内在、行为(EIB)属性的寿险客户指标体系。提出改进的K-means算法,使用改进的轮廓系数公式判断初始聚类数目,并利用欧式距离相似度与余弦相似度的测度优势提出欧式类簇空间的局部、全局离群... 针对寿险行业的客户流失问题,构建基于外在、内在、行为(EIB)属性的寿险客户指标体系。提出改进的K-means算法,使用改进的轮廓系数公式判断初始聚类数目,并利用欧式距离相似度与余弦相似度的测度优势提出欧式类簇空间的局部、全局离群点过滤规则。运用传统的K-means算法、不同离群点监测阈值下的改进K-means算法进行客户细分及其可视化展示,并采用BP-Adaboost算法对细分后的客户进行流失预测。实证表明:改进的K-means算法可视化噪声降低、簇内误方差减小,可在后续的预测器中实现更高预测精度,为保险公司挖掘更精准的客户分类信息、挽留客户提供决策依据。 展开更多
关键词 寿险 客户细分 客户流失 K-meanS算法 BP-Adaboost算法
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全生命周期下K-means算法的电信客户价值分析 被引量:6
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作者 王竹霞 卢文静 《信息技术》 2018年第12期17-20,共4页
文中研究了大数据背景下电信客户价值的分析问题。基于电信客户全生命周期管理思想,建立了电信客户当前价值模型和电信客户长期价值模型,确立了以电信客户分类为基础的客户价值分析策略。基于电信客户的当前价值模型和长期价值模型,采用... 文中研究了大数据背景下电信客户价值的分析问题。基于电信客户全生命周期管理思想,建立了电信客户当前价值模型和电信客户长期价值模型,确立了以电信客户分类为基础的客户价值分析策略。基于电信客户的当前价值模型和长期价值模型,采用K-means聚类算法对电信客户分类,进而依据分类结果对客户的价值作出评价。实例验证结果表明,文中给出的基于全生命周期思想和K-means聚类算法的电信客户价值分析方法是行之有效的。 展开更多
关键词 大数据 全生命周期 K-meanS 客户分类 价值分析
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Effects of Ambient Temperature and Shaft Power Variations on Creep Life Consumption of Industrial Gas Turbine Blades
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作者 Ebigenibo Genuine Saturday Thank-God Isaiah 《Energy and Power Engineering》 2018年第3期120-131,共12页
The effects of ambient temperature and shaft power variations on creep life consumption of compressor turbine blades of LM2500+ industrial gas turbine engine are investigated in this work. An engine model was created ... The effects of ambient temperature and shaft power variations on creep life consumption of compressor turbine blades of LM2500+ industrial gas turbine engine are investigated in this work. An engine model was created in PYTHIA (Cranfield University’s gas turbine software) for the analysis. Blade thermal and stress models were developed and used together with Larson-Miller Parameter method for life analysis. Mean life reduction index, which is the propensity of a given effect to reduce engine life by half, is developed for each effect and applied in this research to compare the impacts of the different effects on the blade creep life. It was observed that blade life will be halved when ambient temperature is increased by 8.11 units while 13.64% increase in shaft power reduces blade life by a factor of 2. The results of this work will guide engine operators in making decisions concerning operating at part loads. 展开更多
关键词 CREEP life CONSUMPTION ENGINE MODEL Thermal MODEL Stress MODEL mean life Reduction Index
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基于SEM—K-means聚类的农村公路项目投资控制影响因素及水平划分研究 被引量:2
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作者 单飞 王雯钰 +1 位作者 任海林 吴旭 《工程管理学报》 2022年第4期58-63,共6页
为解析影响农村公路项目投资控制影响机理,改善农村公路项目建设过程中投资失控问题,从农村公路项目建设寿命全周期视角选取前期决策、设计规划、施工管理、运营维护、内部环境、外部环境与投资控制七类综合潜变量因素及38个测量变量,... 为解析影响农村公路项目投资控制影响机理,改善农村公路项目建设过程中投资失控问题,从农村公路项目建设寿命全周期视角选取前期决策、设计规划、施工管理、运营维护、内部环境、外部环境与投资控制七类综合潜变量因素及38个测量变量,构建结构方程模型(SEM)解析所选因素与投资控制间的影响关系结构,应用中介效应检验法确定因素对投资控制的综合影响程度,最后选择显著影响因素,采用K-means聚类方法划分农村公路项目投资控制水平。结果表明,施工管理与设计规划对农村公路项目投资控制影响最为显著。研究共划分出6个投资控制水平,每个控制水平下特征相似,不同水平间特征差异明显。结合每个控制水平及特征,提出了相应的投资控制建议。 展开更多
关键词 交通工程 投资控制 结构方程模型 农村公路 K-meanS 全寿命周期
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Political Frustration, Trauma, and Self-therapy from Nature: Life and Freedom
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作者 Danqiong Zhu 《Journal of Philosophy Study》 2014年第3期155-172,共18页
When ancient Chinese literatus suffered political frustration, they generally experienced tremendous emotional and psychological traumas. These traumas are entangled with disappointment, anger, fear, grief, desolation... When ancient Chinese literatus suffered political frustration, they generally experienced tremendous emotional and psychological traumas. These traumas are entangled with disappointment, anger, fear, grief, desolation, and other emotions. In most cases, the literatus would turn to nature for relaxation and freedom, composing a lot of literatures in an attempt to reflect on the meaning of life. In this paper, I will analyze the written works of Qu Yuan, the Seven Sages in the Bamboo Grove (~tJ~$qS~), Liu Zongyuan, and Su Shi after they suffered political frustration to: (1) describe how their emotions changed; (2) illustrate how they built relationships between nature and self to relieve their frustrations; (3) clarify during these reflecting processes how they actually experienced the transformation and pursued the meaning of life; and (4) illuminate the significance of these pursuits, not only in spurring the boom of literal naturalism, but also in passing on the message for the current era with the joint crises of humans and the environment, to heal the earth and free themselves. 展开更多
关键词 TRAUMA ecotherapy duality of life meaning of life FREEDOM
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A Statistical Analysis of Intensities Estimation on the Modeling of Non-Life Insurance Claim Counting Process 被引量:1
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作者 Uraiwan Jaroengeratikun Winai Bodhisuwan Ampai Thongteeraparp 《Applied Mathematics》 2012年第1期100-106,共7页
This study presents an estimation approach to non-life insurance claim counts relating to a specified time. The objective of this study is to estimate the parameters in non-life insurance claim counting process, inclu... This study presents an estimation approach to non-life insurance claim counts relating to a specified time. The objective of this study is to estimate the parameters in non-life insurance claim counting process, including the homogeneous Poisson process (HPP) and the non-homogeneous Poisson process (NHPP) with a bell-shaped intensity. We use the estimating function, the zero mean martingale (ZMM) as a procedure of parameter estimation in the insurance claim counting process. Then, Λ(t) , the compensator of is proposed for the number of claims in the time interval . We present situations through a simulation study of both processes on the time interval . Some examples of the situations in the simulation study are depicted by a sample path relating to its compensator Λ(t). In addition, an example of the claim counting process illustrates the result of the compensator estimate misspecification. 展开更多
关键词 Estimating Function Zero mean MARTINGALE NON-life INSURANCE CLAIM Counting PROCESS Poisson PROCESS Bell-Shaped Intensity
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