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Reliability and Validity of Chinese Version of the Addiction Severity Index among Drug Users in the Community
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作者 LUO Wei GUO Cai Xia +1 位作者 HAN De Lin LI Zhi Jun 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2012年第6期684-689,共6页
Objective To assess the reliability and validity of a new Chinese version of the Addiction Severity Index (ASI-C) in drug users in the community. Methods Three hundred and eighty-one drug users in the community in C... Objective To assess the reliability and validity of a new Chinese version of the Addiction Severity Index (ASI-C) in drug users in the community. Methods Three hundred and eighty-one drug users in the community in Chengdu, Sichuan province were recruited. They were interviewed with a questionnaire consisting of the ASI-C revised on the basis of the previous Chinese version and 38 were interviewed for the second time at an interval of 7 days to evaluate test-retest reliability. Results Cronbach's c~ coefficients for the internal consistency of the scale varied from 0.49 to 0.86. Test-retest correlation coefficients ranged from 0.50 to 0.93. Criterion validity was found acceptable, as compared with the Symptom Checklist 90 (SCL-90). Conclusion The ASI-C presented acceptable reliability and validity in a sample of drug users in the community. 展开更多
关键词 Addiction severity index chinese version RELIABILITY Validity community
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Effect of traditional Chinese medicine and traditional health care sports on the development of modem community sports
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作者 Sun Longtao Wang Wei 《International English Education Research》 2014年第3期162-164,共3页
After thousands of years of history, traditional Chinese medicine and traditional health care sports survive the fittest in the screening of the natural law, breeding, enduring Cheung, and reflects the inherent vitali... After thousands of years of history, traditional Chinese medicine and traditional health care sports survive the fittest in the screening of the natural law, breeding, enduring Cheung, and reflects the inherent vitality. Investigation thoroughly on the effect of traditional Chinese medicine and traditional health care sports for the development of modem community sports is to examine and understand its meaning and value from a higher level, to better inherit and carry forward the excellent traditional culture of China and thus to explore meeting point of traditional Chinese medicine and traditional health sports and modem sports. It also ensures the community to establish a healthy concept, improve the cultural quality, strengthen the moral cultivation, rouse the national spirit, increase life interest and form the modem community culture. In short, by the national education of traditional Chinese medicine and traditional protection movement, there is a unique advantage other cultures are incomparable. 展开更多
关键词 traditional chinese medicine traditional health community sports EFFECT
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A Brief Analysis on the Causes of the Chinese Nation's Strong Feelings toward their Home and Country
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作者 Hong Wang 《Journal of Contemporary Educational Research》 2021年第6期23-25,共3页
"The love for our children as well as the love for our country and people"are the common emotions of all human beings.The Chinese nation's feelings toward their relatives,hometown,and country are immense... "The love for our children as well as the love for our country and people"are the common emotions of all human beings.The Chinese nation's feelings toward their relatives,hometown,and country are immensely deep and strong that they have surpassed all other nations.This article analyzed the causes of the Chinese nation's strong feelings toward their home and country based on China's development history and geopolitics. 展开更多
关键词 chinese nation's feelings Home and country CAUSES
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BSI Group Chairman Sir David John in China to Meet Customers and Consolidate Relations with the Chinese Standards Community
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作者 Mandy Shi 《China Standardization》 2005年第1期15-15,共1页
On 29th November 2004, BSI Group Chairman Sir David John and senior colleagues were in Beijing to meet with Management Systems’ clients of the BSI Group and to consolidate already established relationships with the C... On 29th November 2004, BSI Group Chairman Sir David John and senior colleagues were in Beijing to meet with Management Systems’ clients of the BSI Group and to consolidate already established relationships with the Chinese standards community. This trip came in the wake of last year’s visit of the Group Chairman to Beijing and Shanghai, which paved the way for the signing of a cooperation agreement between BSI and the Standardization Adminis- 展开更多
关键词 BSI Group Chairman Sir David John in China to Meet Customers and Consolidate Relations with the chinese Standards community John
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Tracing the Historical Development of Ethnic Colleges and Universities to Strengthen the Consciousness of the Chinese National Community:Oral Narratives of Southwest Minzu University's 70 Years of Development
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作者 Yinqiu Wang 《Journal of Contemporary Educational Research》 2022年第5期135-144,共10页
"With copper as a mirror,you can wear a crown;with history as a mirror,you can know the rise and fall."This paper takes the 70-year development process of Southwest Minzu University as the carrier,the castin... "With copper as a mirror,you can wear a crown;with history as a mirror,you can know the rise and fall."This paper takes the 70-year development process of Southwest Minzu University as the carrier,the casting of the Chinese national community as the main line while tracing back to the source,adopts the recording method of"oral history of the school,"interviews witnesses to the development of Southwest Minzu University,including school leaders,teachers,alumni,and other representative figures,records the memories of these parties on the practices of Southwest Minzu University in different periods to cast the awareness of the Chinese national community,and collates them into a text.From the perspective of students,it is important to understand the history of the Chinese national community in the past 70 years since the establishment of Southwest Minzu University,collect and sort out the historical memories of Southwest Minzu University for the education of the Chinese national community,supplement and confirm the school's historical documents,preserve the history,make up for the gap in the history of the school,and at the same time provide a realistic basis for Southwest Minzu University to formulate future development strategies. 展开更多
关键词 Minzu University Cast a solid sense of the chinese national community Oral narrative
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Conversion of pure Chinese fir plantation to multi-layered mixed plantation enhances the soil aggregate stability by regulating microbial communities in subtropical China 被引量:11
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作者 Guannv Gao Xueman Huang +7 位作者 Haocheng Xu Yi Wang Weijun Shen Wen Zhang Jinliu Yan Xiaoyan Su Shushou Liao Yeming You 《Forest Ecosystems》 SCIE CSCD 2022年第6期823-837,共15页
Background:Soil aggregates are the basic units of soil structure,and their stability is a key indicator of soil quality and capacity to support ecosystem functions.The impacts of various environmental factors on soil ... Background:Soil aggregates are the basic units of soil structure,and their stability is a key indicator of soil quality and capacity to support ecosystem functions.The impacts of various environmental factors on soil aggregates have been widely studied.However,there remains elusive knowledge on the synergistic effects of changing forest stand structure on soil aggregate stability(SAS),particularly in subtropical China where soil erosion remains a critical issue.Methods:We investigated variations in the components of soil humus(HS),including humic acids(HAs),fulvic acids(FAs),and humins(HMs),under pure Chinese fir(Cunninghamia lanceolata)plantation(PP)and multilayered mixed plantation(MP)comprising C.lanceolata,Castanopsis hystrix,and Michelia hedyosperma.The state of soil aggregate stability,was determined by three separate methods,i.e.,dry-sieving,wet-sieving,and the Le Bissonnais.High-throughput sequencing was used to determine the diversity and composition of microbial communities under PP and MP.We then built partial least squares path models(PLS-PM)for assessing the responses of SAS to the variations in soil microorganisms and HS components.Results:The MP stands had significantly greater SAS(P<0.05),higher content of HAs and more rapid organic matter humification within aggregates,than the PP stands.High-throughput sequencing confirmed that the Pielou andα-diversity index values(Chao1 and Shannon)for fungi were all significantly higher under MP than under PP,while no marked difference was found in bacterialα-diversity between the two plantation types.Moreover,there were markedly greater abundance of three bacterial phyla(Verrucomicrobia,Chloroflexi,and Gemmatimonadetes)and three fungal phyla(Ascomycota,Kickxellomycota,and Glomeromycota),and significantly less abundance of two bacterial phyla(Planctomycetes and Firmicutes)and four fungal phyla(Basidiomycota,Mortierellomycota,Mucoromycota,and Rozellomycota)under MP than under PP.The Chloroflexi and Ascomycota phyla appeared to be the primary drivers of soil aggregate distribution.Our findings revealed that the promotion of SAS under MP was mainly driven by increased soil organic matter(SOM)content,which altered bacterial communities and enhanced fungal diversity,thereby increasing HAs content and the rate of organic matter humification.Conclusions:Considering the combined effects of enhanced soil quality,productivity,and relevant economic costs,introducing broadleaved tree species into Chinese fir plantations can be an effective strategy for stabilizing soil structure against erosion in subtropical China.Our study elucidated the controls on variations of SAS in Chinese fir-dominated plantations and demonstrated the benefit of converting pure Chinese fir plantation to multi-layered mixed plantations in increasing soil structural stability and improving site quality. 展开更多
关键词 Broadleaved tree species chinese fir plantation Soil aggregate stability HUMUS Bacterial and fungal communities High-throughput sequencing
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A preliminary investigation on the topology of Chinese climate networks 被引量:2
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作者 王革丽 Anastasios A Tsonis 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第11期5091-5096,共6页
Complex networks have been studied across many fields of science in recent years. In this paper, we give a brief introduction of networks, then follow the original works by Tsonis et al (2004, 2006) starting with da... Complex networks have been studied across many fields of science in recent years. In this paper, we give a brief introduction of networks, then follow the original works by Tsonis et al (2004, 2006) starting with data of the surface temperature from 160 Chinese weather observations to investigate the topology of Chinese climate networks. Results show that the Chinese climate network exhibits a characteristic of regular, almost fully connected networks, which means that most nodes in this case have the same number of links, and so-called super nodes with a very large number of links do not exist there. In other words, though former results show that nodes in the extratropical region provide a property of scale-free networks, they still have other different local fine structures inside. We also detect the community of the Chinese climate network by using a Bayesian technique; the effective number of communities of the Chinese climate network is about four in this network. More importantly, this technique approaches results in divisions which have connections with physics and dynamics; the division into communities may highlight the aspects of the dynamics of climate variability. 展开更多
关键词 chinese climate network complex systems small world community
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International Chinese Language Education and Building a Community of Shared Future for Mankind 被引量:1
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作者 Cui Xiliang Wu Lingwei(译) 《Contemporary Social Sciences》 2020年第1期54-64,共11页
Human society is now confronted with a variety of threats.Given that,the idea and initiative of building a community of shared future for mankind is positively echoed by people around the world.Accordingly,internation... Human society is now confronted with a variety of threats.Given that,the idea and initiative of building a community of shared future for mankind is positively echoed by people around the world.Accordingly,international Chinese language education should play an active role in building a community of shared future for mankind,which is determined by the mission and nature of this educational cause.The idea of building a community of shared future for mankind points a right way for the development of international Chinese language education,injects new vigor to this cause,and also creates a more friendly and favorable external environment.International Chinese language education should help facilitate the building of a community of shared future for mankind and contribute Chinese wisdom to the common progress of mankind in the new era. 展开更多
关键词 international chinese language education a community of shared future for mankind chinese wisdom
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Understandings of Urban Sustainability in China:a Bibliometric Analysis Using Chinese Literatures 被引量:1
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作者 WU Shuang YUE Yang LI Xuesong 《Journal of Geodesy and Geoinformation Science》 CSCD 2024年第1期105-122,共18页
Cities hold a critical responsibility for achieving the Sustainable Development Goals(SDGs)due to their high population density,extensive resource consumption,and significant economic contributions.To examine the pres... Cities hold a critical responsibility for achieving the Sustainable Development Goals(SDGs)due to their high population density,extensive resource consumption,and significant economic contributions.To examine the present state of understandings regarding urban sustainability(SDG 11:Sustainable Cities and Communities)within Chinese research communities,this study collected 15950 papers from 1994 to 2022 on the 12 indicators of SDG 11,from the China National Knowledge Infrastructure(CNKI),a hub of Chinese academic papers,that directly relate to policymaking.Significant research topics on SDG 11 were identified for each indicator using bibliometrics analysis approaches.The high-frequency keywords and clusters of keywords over the last three decades reveal that existing studies primarily concentrated on the physical aspects,such as transportation and environment,while there is a lack of consideration of societal aspects.This indicates a limited and biased understanding of the urban sustainability within the Chinese academic community.Hence,it is crucial to prioritize the societal aspects in order to develop a research agenda that further advances urban sustainability. 展开更多
关键词 urban sustainability SDG 11 BIBLIOMETRIC chinese research communities
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Effects of Different Chinese Hickory Husk Returning Modes on Soil Nutrition and Microbial Community in Acid Forest Soil
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作者 Qian Liu Sayikal Duyxanale +5 位作者 Yongqian Tang Xinyu Shen Yuanlai Zhao Xinru Ma Shuai Shao Chenfei Liang 《Phyton-International Journal of Experimental Botany》 SCIE 2023年第3期943-954,共12页
Chinese hickory(Carya cathayensis Sarg.)is an important economic forest in Southeastern China.A large amount of hickory husk waste is generated every year but with a low proportion of returning.Meanwhile,intensive man... Chinese hickory(Carya cathayensis Sarg.)is an important economic forest in Southeastern China.A large amount of hickory husk waste is generated every year but with a low proportion of returning.Meanwhile,intensive management has resulted in soil degradation of Chinese hickory plantations.This study aims to investigate the effects of three Chinese hickory husk returning modes on soil amendment,including soil acidity,soil nutrition,and microbial community.The field experiment carried out four treatments:control(CK),hickory husk mulching(HM),hickory husk biochar(BC),and hickory husk organic fertilizer(OF).The phospholipid fatty acid(PLFA)biomarker method was employed to determine the soil microbial community.After one year of treatment,the results showed that:(i)HM and BC significantly increased soil pH by 0.33 and 1.71 units,respectively;(ii)HM,BC and OF treatments significantly increased the soil organic carbon,alkaline nitrogen,available phosphorous,and available potassium.The OF treatment demonstrated the most significant improvement in the soil nutrient;(iii)The soil microbial biomass significantly increased in the HM,BC and OF treatments,and all microbial groups showed an increasing trend.HM treatment increased the fungal/bacterial ratio(F/B).The OF treatment significantly decreased the Shannon-Wiener diversity(H’)and evenness index(J)of the microbial community(P<0.05).Considering the treatments effects,costs,and ease of operation,our recommended returning modes of Chinese hickory husk are mulching and organic fertilizer produced by composting with manure. 展开更多
关键词 chinese hickory husk organic fertilizer BIOCHAR MULCHING phospholipid fatty acids soil microbial community
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Zhou Youguang:Father of Chinese Pinyin
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作者 DANG XIAOFEI 《China Today》 2019年第7期44-46,共3页
ANY foreigner who has studied Chinese is aware that to learn Chinese well, they must first grasp Pinyin (a phonetic system). Then they will be able to have a good command of Chinese pronunciation, and better equipped ... ANY foreigner who has studied Chinese is aware that to learn Chinese well, they must first grasp Pinyin (a phonetic system). Then they will be able to have a good command of Chinese pronunciation, and better equipped to obtain a basic knowledge of Chinese culture. However, the written form of Chinese, just like ancient Hebrew, is hieroglyphic, and there is no indication of the pronunciation in the written form. So what is the origin of the Pinyin used by Chinese people and the international community? 展开更多
关键词 ANY foreigner LEARN chinese WELL international community
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Construction of traditional Chinese medicine culture and characteristic communityculture: a review
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作者 Jia- Jia Zhou Wen-Wen Zhao +3 位作者 Hui-Xing Ding Chun-Hua Zhang Pei-Yao Li Chun-Guang Yu 《TMR Theory and Hypothesis》 2018年第1期9-12,共4页
The broad and profound Chinese medicine culture is an important part of Chinese traditional culture, which nourishes the vigorous development of modern Chinese medicine. At present, traditional Chinese medicine (TCM... The broad and profound Chinese medicine culture is an important part of Chinese traditional culture, which nourishes the vigorous development of modern Chinese medicine. At present, traditional Chinese medicine (TCM) culture faces challenges and opportunities. As the inheritor of Chinese medicine culture, we bear the burden of inheriting and carrying forward TCM culture. Distinctive community culture is mainly playing value guidance and education transmission function in the process of residents identifying with the culture of Chinese medicine. Therefore, building a distinctive community culture under the guidance of the essence of TCM can effectively inherit and develop TCM culture. 展开更多
关键词 chinese medicine culture community culture RESIDENTS INHERITANCE
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Community nurses' knowledge need toward traditional chinese medicine and related factors in China: A cross-sectional survey
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作者 Yu Li Zhi-Qi Chen +4 位作者 Dong-Qin Kang Qi Liu Zi-Pan Wang Jing Wang Shu-Jin Yue 《TMR Integrative Nursing》 2018年第2期87-93,共7页
Purpose:The aim of the study was to examine the knowledge need toward Traditional Chinese Medicine (TCM) in nurses who worked in Community Health Centers, and to explore the related factors in the current situation... Purpose:The aim of the study was to examine the knowledge need toward Traditional Chinese Medicine (TCM) in nurses who worked in Community Health Centers, and to explore the related factors in the current situation of China. Subject and setting: Participants worked in five community health centres across Chaoyang Beijing, and each com- munity health centre includes 4-7 health stations. A questionnaire survey was administered to 218 registered commu- nity nurses using cluster sampling. The investigation was conducted after obtaining informed consent from each par- ticipant. Design: A descriptive cross-sectional design was used to gather data in this study. Instruments: The survey tool was a 5-point Likert-type questionnaire designed by experts in TCM and related fields, which had good face va- lidity and internal consistency. Results: The nursing technology of TCM scored highest score in our research (42.87±5.74). Next came disease prevention in TCM (21.02±2.67). The lowest mean score was for the usage of Chinese herbal medicine (15.03±2.77). The significant related factors for nurses' knowledge need towards TCM were educa- tional background (P 〈 0.05), working unit (P 〈 0.01), "on-the-job training on TCM" (P 〈 0.01) and "have studied lit- erature on Chinese medicine" (P 〈 0.05). Conclusion: This results suggest nurses working in community care would like to learn more about TCM. Improving community nurses' understanding and learning of TCM can promote the application and promotion of TCM nursing technology in the community. Therefore, we could adopt targeted education for community nurses, in order to meet their knowledge needs, and to promote the application of traditional Chinese medicine knowledge to the community. 展开更多
关键词 community nurses Traditional chinese medicine Knowledge need
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Do They Pose a Danger:Evaluation of the Recidivism Characteristics in China’s Community Corrections?
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作者 Haoran Xu Xiaomei Liu 《Journal of Psychological Research》 2023年第1期20-27,共8页
The modern criminal justice system includes community corrections,which play a preventive role in lowering recidivism among offenders.However,some offenders continue to commit crimes during community corrections.This ... The modern criminal justice system includes community corrections,which play a preventive role in lowering recidivism among offenders.However,some offenders continue to commit crimes during community corrections.This research focuses on community corrections in Chinese community policing practice,particularly offender recidivism.The study collected a total of 500 questionnaires from offenders in the provincial administrative regions of northern China,which included first offense status,psychological status,and recidivism behavior.The study found that most recidivists are usually arrested for“drunk driving”,which may be related to their ability to exercise self-restraint,and that alcohol may contribute to their deviant behavior.Another important finding relates to young recidivists,who may have difficulty securing employment during community corrections and thus use crime again to gain income.In general,this study explores the offender population in Chinese community corrections practice and discusses the factors within it that influence offender recidivism.This may support law enforcement agencies in further evaluating the effectiveness of community corrections,and may provide new information for understanding community corrections in China. 展开更多
关键词 community corrections Offender reoffending Criminal psychology chinese policing practices
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Building a Community with a Shared Future for Mankind: a Chinese Scheme of Global Human Rights Governance
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作者 向巴平措 LI Kunyan 《The Journal of Human Rights》 2017年第4期305-308,共4页
Sponsored by the China Society for Human Rights Studies and the Publicity Department of the Tianjin Municipal Committee,the symposium on building a Community with a Shared Future for Mankind and Global Human Rights Go... Sponsored by the China Society for Human Rights Studies and the Publicity Department of the Tianjin Municipal Committee,the symposium on building a Community with a Shared Future for Mankind and Global Human Rights Governance starts today at Nankai University.On behalf of the China Society for Human Rights Studies,I would like to extend my warm congratulations to the conveners of conference,and 展开更多
关键词 Building a community with a Shared Future for Mankind a chinese Scheme of Global Human Rights Governance
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Revisiting the Spirit of the UDHR and Discussing Human Rights Development——Summary of Views from the Seminar Commemorating the 75th Anniversary of the Universal Declaration of Human Rights
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作者 刘炫麟 LI Donglin 《The Journal of Human Rights》 2024年第1期231-241,共11页
On December 4,2023,the China Society for Human Rights Studies hosted a seminar in Beijing commemorating the 75^(th) Anniversary of the Universal Declaration of Human Rights.Participants discussed topics such as the si... On December 4,2023,the China Society for Human Rights Studies hosted a seminar in Beijing commemorating the 75^(th) Anniversary of the Universal Declaration of Human Rights.Participants discussed topics such as the significance of the Universal Declaration of Human Rights,China’s theories and practices in respecting and safeguarding human rights,the three global initiatives and global human rights governance,human rights protection in the digital age,and telling Chinese stories of human rights in the new era.The discussions led to a broad consensus and achieved positive results. 展开更多
关键词 the Universal Declaration of Human Rights a community with a shared future for mankind the rule of law protection global human rights governance contemporary chinese perspective on human rights
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Corporate Social Responsibility and Brand Community Engagement:Dual Mediating Roleof Brand and Community Identifications in the Chinese Decor Industry
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作者 Moazzam Abbas Zubair Nawaz Andeela Sahar Fatima 《Fudan Journal of the Humanities and Social Sciences》 2024年第1期51-72,共22页
Despite a plethora of studies on how corporate social responsibility(CSR)generates favorable consumer outcomes,the existing literature provides limited insights about how CSR may affect inter-consumer connection and b... Despite a plethora of studies on how corporate social responsibility(CSR)generates favorable consumer outcomes,the existing literature provides limited insights about how CSR may affect inter-consumer connection and brand community engagement.Enhancing consumer engagement in the brand community is one of the key marketing objectives for strengthening the brand-consumer relationship.This study aims to explore the role of corporate social responsibility in enhancing brand community engagement and examines the dual mediating role of brand identification and community identification.Quantitative research was conducted and an adapted questionnaire was used.Survey data were collected from 405 Chinese consumers,and structural equational modeling was used to test the hypothesis.Results demonstrated that CSR motivates consumers to engage with the brand community.Further,brand identification and community identification perform the role of partial mediators. 展开更多
关键词 Corporate social responsibility community engagement chinese consumers Brand identification community identification
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Narrating the Universality of Community for the Chinese Nation: A Review of Su Li's The Constitution of China
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作者 Yue SHI 《Journal of the Chinese Nation Studies》 2024年第1期165-176,共12页
In The Constitution of China,Su Li proposes the perspective of the constitution as a system(xian zhi),and offers a three-layer frame of"Jia-Guo-Tianxia"to interpret historical China's constitutional syst... In The Constitution of China,Su Li proposes the perspective of the constitution as a system(xian zhi),and offers a three-layer frame of"Jia-Guo-Tianxia"to interpret historical China's constitutional system.This article points out that Su Li presents his academic ambition of narrating the universality of Chinese nation,and proposes a dynamic view of institution based on China's historical experience.Therefore,Su Li's work is an important reference for the academic discipline of the Chinese Nation Studies. 展开更多
关键词 chinese Nation community CONSTITUTION
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A Thermodynamic Cavitation Model for Cavitating Flow Simulation in a Wide Range of Water Temperatures 被引量:9
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作者 张瑶 罗先武 +3 位作者 季斌 刘树红 吴玉林 许洪元、 《Chinese Physics Letters》 SCIE CAS CSCD 2010年第1期198-201,共4页
A thermodynamic cavitation model is developed to simulate the cavitating water flow in a wide temperature range. The thermal effect on bubble growth during cavitation is introduced in the developed model by considerin... A thermodynamic cavitation model is developed to simulate the cavitating water flow in a wide temperature range. The thermal effect on bubble growth during cavitation is introduced in the developed model by considering both pressure difference and heat transfer between the vapor and liquid phase. The cavitating turbulent flow over a NACA0015 hydrofoil has been simulated at various temperatures from room temperature to 150°C by using the present cavitation model, which has been validated by the experimental data. It is seen that the thermodynamic effects of cavitation, vapor depression and temperature depression are much more predominant in high temperature water compared with those in room temperature water. These results indicate that the proposed thermodynamic cavitation model is reasonably applicable to the cavitating water flow in a wide temperature range. 展开更多
关键词 chinese climate network complex systems small world community
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Evaluation of Thermal Degradation Induced Material Damage Using Nonlinear Lamb Waves 被引量:5
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作者 项延训 轩福贞 邓明晰 《Chinese Physics Letters》 SCIE CAS CSCD 2010年第1期190-193,共4页
We report on the evaluation of thermal degradation damage in metal material using the nonlinear effect of Lamb wave propagation. A mountain-shape'' change in the second harmonic of Lamb wave propagation versus the l... We report on the evaluation of thermal degradation damage in metal material using the nonlinear effect of Lamb wave propagation. A mountain-shape'' change in the second harmonic of Lamb wave propagation versus the level of thermal degradation in the specimens is observed. It is attributed to the precipitations in the early stage and the microvoids after long-term service in terms of metallographic studies. The results show that the nonlinear Lamb wave is very sensitive to the microstructure evolution and is a good potential for quantitative evaluation of the thermal damaged materials. 展开更多
关键词 chinese climate network complex systems small world community
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