期刊文献+
共找到4,226篇文章
< 1 2 212 >
每页显示 20 50 100
Guardians of Heritage Resources : A Preliminary Investigation into the Application of the Intelligent Sentry System in the Mount Tai Scenic Area
1
作者 Yunwen SUN Peipei LIU +3 位作者 Simin LI Shuai ZHANG Bingzhuo CHEN Yonghua WANG 《Plant Diseases and Pests》 2026年第1期26-29,共4页
This article examines the intelligent forest sentry system in the Mount Tai Scenic Area, analyzing its applications, accomplishments, and significance in forest fire prevention. It highlights the system's critical... This article examines the intelligent forest sentry system in the Mount Tai Scenic Area, analyzing its applications, accomplishments, and significance in forest fire prevention. It highlights the system's critical role in enhancing comprehensive forest fire prevention and control capabilities, accelerating emergency response times, and safeguarding the heritage resources of Mount Tai. Furthermore, the system is evolving into a "Smart Forest and Grassland Resources Supervision Platform" that integrates forest fire early warning, ecological environment monitoring, and pest and disease management to promote the sustainable development of forest resources. 展开更多
关键词 Mount tai Forest fire prevention Intelligent sentry system Ecological protection Heritage resources
在线阅读 下载PDF
Invitation to Wudang Mountain:International Travel Agencies Discuss New Opportunities in Cultural Tourism
2
《China & The World Cultural Exchange》 2025年第12期6-7,共2页
From October 25 to October 28,2025 International Travel Agency Cooperation and Exchange Activities,an important part of the 2025 International Wudang Tai Chi Culture Festival,was successfully held in Wudang Mountain.W... From October 25 to October 28,2025 International Travel Agency Cooperation and Exchange Activities,an important part of the 2025 International Wudang Tai Chi Culture Festival,was successfully held in Wudang Mountain.With the theme of"Zhiyin Hubei,Alliance at Wudang",about 280 representatives from world tourist organizations such as World Tourism Cities Federation and the Pacific Asia Travel Association,as well as China Tourism Association,participated in the event,covering 17 countries and regions including the United States,Spain,Russia,Germany,etc. 展开更多
关键词 cooperation exchange activities Pacific Asia Travel Association international travel agencies China Tourism Association world tourist organizations World Tourism Cities Federation Wudang Mountain International Wudang tai Chi Culture Festival
在线阅读 下载PDF
甘薯Tai6.33665基因生物信息学、亚细胞定位及表达分析
3
作者 熊军 唐秀桦 韦民政 《热带作物学报》 北大核心 2025年第11期2549-2558,共10页
甘薯(Ipomoeabatatas)作为全球重要的粮食与功能作物,其紫肉品种因富含花青素而备受关注。花青素不仅赋予块根鲜明的色泽,更具有抗氧化、抗炎及预防慢性疾病的生理功能,因此在健康食品开发中具有重要价值。然而,花青素的生物合成受多层... 甘薯(Ipomoeabatatas)作为全球重要的粮食与功能作物,其紫肉品种因富含花青素而备受关注。花青素不仅赋予块根鲜明的色泽,更具有抗氧化、抗炎及预防慢性疾病的生理功能,因此在健康食品开发中具有重要价值。然而,花青素的生物合成受多层级调控网络影响,其中bHLH转录因子的功能尚未在甘薯中被充分解析。本研究聚焦甘薯基因Tai6.33665,旨在阐明其分子特性、亚细胞定位模式及其在花青素积累中的调控作用,为高花青素甘薯品种的分子育种提供理论依据。本研究以紫肉甘薯(PFSP)和白肉甘薯(WFSP)为材料,通过生物信息学分析Tai6.33665蛋白的结构与进化关系,利用qRT-PCR检测基因表达模式,构建Tai6.33665-GFP融合载体进行烟草瞬时转化,结合激光共聚焦显微镜明确亚细胞定位,分析基因表达与花青素含量的相关性及miRNA互作机制。结果表明:Tai6.33665编码的蛋白具有典型bHLH结构域,与花青素合成调控因子高度同源,其表达量与花青素积累呈显著负相关(P<0.05),且受ib-miR52靶向抑制;亚细胞定位显示该蛋白定位于内质网,推测其可能通过翻译后修饰或内质网通路间接调控代谢。本研究证实了Tai6.33665作为负调控因子抑制甘薯花青素生物合成,其功能实现依赖于亚细胞定位特异性及miRNA介导的转录后调控网络。这一发现不仅丰富了植物次生代谢调控的理论框架,更为分子育种提供了双轨策略:通过CRISPR/Cas9靶向敲除Tai6.33665或过表达ib-miR52,可突破花青素积累的遗传限制,培育高花青素含量甘薯新品种。未来工作将聚焦于解析该基因与MYB/WD40蛋白的互作机制,以及内质网定位对其转录活性的调控路径。 展开更多
关键词 甘薯 tai6.33665 生物信息学 亚细胞定位 表达分析
在线阅读 下载PDF
Effects of Three Various Frequencies of 24-Form Tai Chi on Anxiety and Depression Symptoms in College Students
4
作者 Yumeng Kong Xuesong Guo Yifei Wang 《International Journal of Mental Health Promotion》 2025年第10期1577-1594,共18页
Background:Anxiety and depression are prevalent among university students,calling for effec-tive non-pharmacological interventions.Tai Chi shows potential in reducing these symptoms,but research on its effects at diff... Background:Anxiety and depression are prevalent among university students,calling for effec-tive non-pharmacological interventions.Tai Chi shows potential in reducing these symptoms,but research on its effects at different frequencies in younger populations is limited.This study compared the impacts of high-(5 ses-sions/week),medium-(3 sessions/week),and low-frequency(2 sessions/week)24-form Tai Chi on college students’anxiety/depression,versus a control group.Methods:A randomized controlled trial(RCT)included 120 university students with mild-to-moderate anxiety/depression,randomly assigned to 4 groups(30 each).The 8-week intervention used the Self-Rating Anxiety Scale(SAS)and Self-Rating Depression Scale(SDS)for assessments at baseline,week 4,and week 8.Analyses included paired t-tests(within-group changes),one-way ANOVA(between-group differences),repeated measures ANOVA(RM-ANOVA,temporal changes),and Mixed Model for Repeated Measures(MMRM,longitudinal changes with missing data).Results:All intervention groups had significant SAS/SDS reductions:high-frequency group(SAS:20.4%,t=7.21,p<0.001;SDS:22.1%,t=6.92,p<0.001)>medium-frequency group(SAS:18.3%,t=5.06,p<0.001;SDS:19.8%,t=5.18,p<0.001)>low-frequency group(SAS:15.2%,t=4.09,p<0.001;SDS:17.4%,t=4.67,p<0.001).No changes were seen in the control group.The high-frequency group outperformed the low-frequency and control groups(p<0.05);RM-ANOVA and MMRM confirmed sustained,time-dependent effects,with the high-frequency group being optimal.Conclusion:24-form Tai Chi effectively reduces college students’anxiety/depression,with efficacy increasing with frequency(high>medium>low).The high-frequency protocol(5 sessions/week)is the most effective non-pharmacological intervention,and MMRM confirms its sustained efficacy. 展开更多
关键词 tai Chi ANXIETY DEPRESSION college students intervention frequency randomized controlled trial
在线阅读 下载PDF
Enhancing health,harmony and cultural traditions:Contextualizing the development of Tai Chi associations in
5
作者 Yi-Zhen Cai Eileen O’Connor 《History and Philosophy of Medicine》 2025年第2期1-9,共9页
Background:This study examined the development of Tai Chi in Ottawa,Canada,focusing on:(1)traditions and modernization of Tai Chi in China's mainland;(2)the evolution of Ottawa’s Chinese community;and(3)the role ... Background:This study examined the development of Tai Chi in Ottawa,Canada,focusing on:(1)traditions and modernization of Tai Chi in China's mainland;(2)the evolution of Ottawa’s Chinese community;and(3)the role of Ottawa Tai Chi Chuan Association(OTCA)and Taoist Tai Chi Society(TTCS)-in promoting Tai Chi and traditional health practices rooted in Traditional Chinese Medicine(TCM)in Ottawa.Methods:Archive research was used to investigate origins,organizational structures,and programs of the associations.Documents were obtained from the personal collections,websites,and Ottawa Archives.Secondary literature on Tai Chi’s history in China and Chinese immigration to Ottawa provided contextual insights.Results:In the twentieth century,Tai Chi in China's mainland underwent significant transformations,aligning with nation-building,social reform,public health promotion,and cultural influence.Since the 1970s,the demographic composition of Canada’s Chinese community has become diversified.Some community members played a critical role in transmitting Tai Chi to Canada by establishing OTCA and TTCS.Through a variety of Tai Chi programs,workshops,and community engagement,OTCA and TTCS promoted Tai Chi as a holistic health practice rooted in TCM and traditional cultural principles in different approaches.OTCA primarily served the Chinese community,focusing on diverse forms,techniques,and theories.In contrast,Ottawa’s TTCS,as a satellite association,emphasized Taoist-inspired Tai Chi and cultivation passed down by the founder,Moy Linshin,to accommodate members from diverse cultural backgrounds.OTCA and TTCS created inclusive mind-body communities for individuals to engage in Tai Chi as a culturally meaningful practice and a means of fostering social connection and holistic wellness.Conclusion:OTCA and TTCS significantly revitalized while adapted Tai Chi and TCM practices to Western contexts,integrating its historical roots with western health ideas to establish it as a widely recognized mind-body discipline and alternative therapy. 展开更多
关键词 tai Chi HEALTH CANADA
在线阅读 下载PDF
Evaluation and Improvement Strategies of Accessible Tourism Experience in Mount Tai Scenic Area
6
作者 LIU Xiaomei WANG Hui +1 位作者 LYU Chen MA Yibing 《Journal of Landscape Research》 2025年第4期59-61,67,共4页
Mount Tai Scenic Area has achieved certain results in the construction of accessible tourism facilities,realizing the exploration of digital and intelligent transformation in traditional mountain scenic areas.In this ... Mount Tai Scenic Area has achieved certain results in the construction of accessible tourism facilities,realizing the exploration of digital and intelligent transformation in traditional mountain scenic areas.In this study,using questionnaire surveys and in-depth interviews,the development of accessible tourism in Mount Tai Scenic Area was investigated and analyzed.Some countermeasures were put forward,including strengthening information guidance services,enhancing awareness and skills in accessibility services,improving feedback mechanisms for continuous refinement,and strengthening collaborations in the fields of the disabled and accessibility development,aiming to further promote humanistic care and enhance service satisfaction at the scenic area. 展开更多
关键词 ACCESSIBILITY Questionnaire survey In-depth interview Digital and intelligent transformation Mount tai Scenic Area
在线阅读 下载PDF
Improvement of Tourism Service Quality in Tai’an Tianyi Lake Scenic Area
7
作者 ZHANG Ying WANG Hui +1 位作者 LIU Xiaomei SONG Zhenxing 《Journal of Landscape Research》 2025年第2期54-57,共4页
In order to better enhance the tourism service quality and tourist satisfaction of scenic spots,this study applies the theory of tourism service quality to Tai’an Tianyi Lake scenic area,exploring the current situati... In order to better enhance the tourism service quality and tourist satisfaction of scenic spots,this study applies the theory of tourism service quality to Tai’an Tianyi Lake scenic area,exploring the current situation and existing problems of its tourism service quality through field investigation and questionnaire surveys,and proposing specific promotion strategies,with the aim to improve tourist satisfaction and enhance the competitiveness and attraction of the scenic area. 展开更多
关键词 tai’an Tianyi Lake scenic area Tourism service quality PROMOTION INVESTIGATION SATISFACTION
在线阅读 下载PDF
An Analysis of Tai Chi's Promoting Role in the Inheritance and International Communication of Traditional Chinese Medicine Culture
8
作者 Hong Yang Zongming Zhang 《Research and Inheritance of Traditional Chinese Medicine》 2025年第1期8-23,共16页
The international communication of traditional Chinese medicine(TCM)culture requires finding practical and effective communication methods through multi-dimensional,multi-path,and multi-channel approaches.The research... The international communication of traditional Chinese medicine(TCM)culture requires finding practical and effective communication methods through multi-dimensional,multi-path,and multi-channel approaches.The research on using Tai Chi to promote the international communication of TCM is still an unexploited new integrated communication path and a new topic with special significance for the internationalization of TCM culture.However,relevant research on this topic has not yet formed a systematic research system in academic circles at home and abroad.The prerequisite for studying how Tai Chi promotes the international communication of TCM culture is in-depth inheritance.The integrated research on the cultural connotation of Tai Chi,based on its return to the category of TCM culture,has important theoretical and practical value for promoting the integrated international communication of TCM culture through Tai Chi.This paper,focusing on the theoretical research on how to use Tai Chi to promote the international communication of TCM culture,proposes integrated research on Tai Chi and TCM culture,and establishes a"trinity"integrated research model of Tai Chi culture,TCM culture,and martial arts culture,laying a theoretical foundation for Tai Chi to promote the international communication of TCM culture.Secondly,in terms of the specific implementation of TCM culture communication with Tai Chi as the main carrier,it is proposed to focus on cultivating the TCM cultural literacy of Tai Chi communicators,and inject into the communication basic TCM elements related to Tai Chi culture,such as Yin-Yang philosophy,TCM culture,TCM Qi theory,and TCM health preservation,so as to sow the seeds of TCM culture wherever Tai Chi is spread internationally. 展开更多
关键词 tai Chi studies Traditional Chinese Medicine culture historical inheritance
在线阅读 下载PDF
Insights on Song Dynasty Medical Exams from Tai Yi Ju Zhu Ke Cheng Wen Ge(《太医局诸科程文格》Examination Answers and Standards of the Imperial Medical Bureau)
9
作者 HU Lingbai ZHANG Xuedan 《Chinese Medicine and Culture》 2025年第1期68-77,共10页
The medical education of the Song dynasty constitutes a pivotal aspect within the broader framework of ancient Chinese medical education. The advent of the imperial examination system coincided with the emergence of a... The medical education of the Song dynasty constitutes a pivotal aspect within the broader framework of ancient Chinese medical education. The advent of the imperial examination system coincided with the emergence of a medical examination system, which served as the cornerstone for the subsequent evolution of medical education. According to historical records, the Song government established dedicated medical departments, along with comprehensive systems encompassing medical professors, students, and examinations. By examining extant medical historical documents, such as Tai Yi Ju Zhu Ke Cheng Wen Ge(《太医局诸科程文格》 Examination Answers and Standards of the Imperial Medical Bureau), researchers and readers can obtain a comprehensive understanding of the medical system that prevailed in the Song dynasty. While the intricate details of medical education during this era are not explicitly documented in historical records, modern researchers have the opportunity to uncover the entire view of medical education, particularly the medical examination system, through rigorous analysis of these extant historical medical documents. Such studies offer valuable insights into the developmental trajectory of the ancient Chinese medical examination system and provide crucial references for contemporary medical education. By conducting in-depth literature research and analysis of Tai Yi Ju Zhu Ke Cheng Wen Ge, this study endeavors to reconstruct the authentic scenario of medical examinations in the Song dynasty, as presented in the document, for the benefit of modern readers and researchers. 展开更多
关键词 Song dynasty Medical education History of medicine EXAMINATION Medical classics tai Yi Ju Zhu Ke Cheng Wen Ge(《太医局诸科程文格》Examination Answers and Standards of the Imperial Medical Bureau)
在线阅读 下载PDF
Study on Over-urbanization of the Ecotone between Mount Tai and Tai'an City
10
作者 赵敬民 刘肖梅 乔晓红 《Journal of Landscape Research》 2010年第11期91-94,99,共5页
By investigating the ecotone between Mount Tai Scenic Area and downtown area of Tai'an City,the characteristics of such an ecotone are analyzed,serious problems brought by the over-urbanization to local natural en... By investigating the ecotone between Mount Tai Scenic Area and downtown area of Tai'an City,the characteristics of such an ecotone are analyzed,serious problems brought by the over-urbanization to local natural environment,such as destruction of eco-environment,aggravated pollution and degradation of mountainous landscape resources are studied.Then countermeasures for the harmonious development of the ecotone are proposed to better promote the coordinated development of cities and mountainous scenic areas. 展开更多
关键词 ECOTONE BETWEEN MOUNtaiN and CITY Over-urbanization Problem MOUNT tai
在线阅读 下载PDF
B737NG发动机防冰活门(TAI)状态监控及寿命分析模型
11
作者 郑秋实 王宇 《价值工程》 2025年第1期33-35,共3页
发动机防冰活门(TAI)故障发生概率不高,但造成飞机中断起飞、返航等不正常事件的后果严重,给航空公司带来较高的经济损失。本文基于737NG飞机上件号3215618-4/-5 TAI的QAR数据,建立状态监控模型;同时,对其故障模式进行分析,结合修理数据... 发动机防冰活门(TAI)故障发生概率不高,但造成飞机中断起飞、返航等不正常事件的后果严重,给航空公司带来较高的经济损失。本文基于737NG飞机上件号3215618-4/-5 TAI的QAR数据,建立状态监控模型;同时,对其故障模式进行分析,结合修理数据,建立威布尔分布模型,对TAI内部附件进行寿命分析。建议航空公司根据TAI实际运行的状态趋势,结合寿命分析,对TAI故障采取预测和预防措施。 展开更多
关键词 发动机防冰活门 状态监控模型 使用寿命 威布尔分布 预测和预防
在线阅读 下载PDF
无法手术切除的胰腺癌数字减影血管造影(DSA)的动脉造影分析及其对经动脉灌注化疗(TAI)的指导价值 被引量:6
12
作者 施惠斌 陈颐 +4 位作者 程洁敏 龚高全 李国平 李长煜 王小林 《复旦学报(医学版)》 CAS CSCD 北大核心 2014年第3期352-356,共5页
目的观察无法手术切除的胰腺癌数字减影血管造影(digital subtract angiography,DSA)的表现特点,探讨DSA动脉造影对经动脉灌注化疗(transarterial infusion,TAD的指导价值。方法回顾性分析在中山医院介入治疗科接受TAI治疗的无法手术切... 目的观察无法手术切除的胰腺癌数字减影血管造影(digital subtract angiography,DSA)的表现特点,探讨DSA动脉造影对经动脉灌注化疗(transarterial infusion,TAD的指导价值。方法回顾性分析在中山医院介入治疗科接受TAI治疗的无法手术切除的胰腺癌患者146例。所有病例先行腹腔动脉和肠系膜上动脉造影,必要时选择进入肝总动脉、胃十二指肠动脉或脾动脉造影。观察胰腺癌的直接供血动脉及其起源、胰周主要动脉受侵犯情况。结果 61例胰头癌中,所有病例胰十二指肠前上、后上动脉均参与供血(100%),53例胰十二指肠前下、后下动脉参与供血(86.9%),14例胰背动脉参与供血(23.0%)。85例胰体尾癌中,9例未见明显血供,余76例中胰背动脉参与供血31例(36.5%),胰大动脉参与供血41例(48.2%),胰尾动脉参与供血35例(41.2%)。胰周大动脉中,16例腹腔动脉受侵犯(11.0%),其中2例动脉侵犯分级Ⅳ级;35例胃十二指肠动脉受侵犯(24.0%);10例肠系膜上动脉受侵犯(6.8%);8例肝总动脉受侵犯(5.5%);65例脾动脉受侵犯(44.5%),其中7例动脉受侵分级Ⅳ级。结论 DSA动脉造影对元法手术切除的胰腺癌TAI术中给药靶动脉的确有重要指导价值。 展开更多
关键词 胰腺癌 数字减影血管造影(DSA) 动脉灌注化疗(tai)
暂未订购
经皮穿肝胆道引流(PTBD)结合经动脉灌注化疗(TAI)治疗胰头癌伴梗阻性黄疸 被引量:5
13
作者 李长煜 王小林 +5 位作者 龚高全 程洁敏 李国平 刘凌晓 施惠斌 陈颐 《复旦学报(医学版)》 CAS CSCD 北大核心 2014年第2期222-226,共5页
目的 评价经皮穿肝胆道引流(percutaneous transhepatic biliary drainage,PTBD)结合经动脉灌注化疗(transarterial infusion,TAI)治疗中晚期胰头癌伴梗阻性黄疸的临床价值。方法 回顾性收集伴有梗阻性黄疸的胰头癌患者 28例,所... 目的 评价经皮穿肝胆道引流(percutaneous transhepatic biliary drainage,PTBD)结合经动脉灌注化疗(transarterial infusion,TAI)治疗中晚期胰头癌伴梗阻性黄疸的临床价值。方法 回顾性收集伴有梗阻性黄疸的胰头癌患者 28例,所有患者均先行PTBD解除胆道梗阻症状,待有效引流后行经动脉灌注化疗。分析患者的临床受益反应(clinical benefit response,CBR)、支架通畅时间、生存期和并发症。结果 28例患者共行PTBD 28次,胆红素由术前(168.9±64.1) μmol/L降到术后最低(37.2±6.2) μmol/L,其中15例放置胆道支架,支架平均通畅时间为10.6个月,共接受经动脉灌注化疗 81次,所有病例均未出现Ⅲ-Ⅳ不良反应,总临床受益反应为64.3%,平均生存期7.07个月。结论 PTBD结合经动脉灌注化疗是治疗中晚期胰头癌伴梗阻性黄疸患者安全可行的办法。 展开更多
关键词 胰腺癌 梗阻性黄疸 经皮穿肝胆道引流(PTBD) 经动脉灌注化疗(tai)
暂未订购
Mindfulness-Based Communication: Reflections on the Role of Taiji Practice in Enhancing Intercultural Competence
14
作者 Meghdad Abdi Mina Mirahmadpour 《Chinese Medicine and Culture》 2019年第4期179-183,共5页
Taijiquan(太极拳)is a discipline that influences the practitioners’body-mind and could lead them to a healthier state.In this article,the intercultural aspects of Taiji practice are explored,specific characteristics ... Taijiquan(太极拳)is a discipline that influences the practitioners’body-mind and could lead them to a healthier state.In this article,the intercultural aspects of Taiji practice are explored,specific characteristics that practitioners could develop through the continued practice of Taijiquan.These qualities are studied through the lens of Taijiquan Classics,a collection of ancient theoretical and philosophical texts that is the foundation for Taijiquan theory and practice,in the framework of the science of intercultural communication.Our purpose is to explore yet another less-known benefit of Taijiquan practice besides its many,already well-known ones.We argue that Taijiquan has the potential to develop qualities and attributes associated with intercultural competence. 展开更多
关键词 Intercultural communication intercultural competence MINDFULNESS tai Chi taiJI taijiquan Classics YIN-YANG
在线阅读 下载PDF
TAI评量标准研究和信效度分析 被引量:12
15
作者 范晓玲 彭纯子 彭丽 《中国临床心理学杂志》 CSCD 2004年第1期58-59,共2页
目的 :制定TAI评量标准、焦虑水平分布及本次研究的信效度。方法 :以 95 0名高中生的TAI常模制订评量标准 ,另对 2 17名同类学生进行TAI、STAI测评和访谈。结果 :测验焦虑分正常、轻度、中度和重度四级 ,属焦虑者 5 %左右。TAI与STAI的... 目的 :制定TAI评量标准、焦虑水平分布及本次研究的信效度。方法 :以 95 0名高中生的TAI常模制订评量标准 ,另对 2 17名同类学生进行TAI、STAI测评和访谈。结果 :测验焦虑分正常、轻度、中度和重度四级 ,属焦虑者 5 %左右。TAI与STAI的同时效度为 0 .4 0~ 0 .5 6 ,与学生访谈结果的相关为 0 .5 82 ,TAI重测信度为 0 .76 4~0 .873,均在 0 .0 1水平达到相关显著。结论 :高中生测验焦虑水平较低 ,本次研究结果是有效的。 展开更多
关键词 tai 评量标准 信效度 焦虑 学生
暂未订购
考试焦虑量表(TAI)的信度和效度研究 被引量:80
16
作者 王才康 《中国临床心理学杂志》 CSCD 2003年第1期69-70,共2页
Objective:To explore the psychometrics of the Chinese adapted Test Anxiety Inventory(TAI).Methods:411 college students came from three universities in Guangzhou were administrated TAI,Test Anxiety Scale(TAS)and the FR... Objective:To explore the psychometrics of the Chinese adapted Test Anxiety Inventory(TAI).Methods:411 college students came from three universities in Guangzhou were administrated TAI,Test Anxiety Scale(TAS)and the FRIEBEN Test Anxiety Scale (FTA) during university test weeks.Results:(1)the Chinese version TAI had sound reliability.(2)The positive corelation between the Test Anxiety Inventory with TAS and sub-scales of the FTA showed the validity of Chinese version TAI could be accepted.(3)Female college students got significantly higher scores in Emotionality Scale of TAI than male college students.Conclusion:The Chinese version of TAI can be used for later research and/or practical works. 展开更多
关键词 考试焦虑量表 tai 信度 效度 心理测量学
在线阅读 下载PDF
R60702/TAI/16MnⅢ复合板爆炸焊接数值模拟与试验 被引量:3
17
作者 苏文献 王明君 +1 位作者 施卿海 殷天明 《焊接学报》 EI CAS CSCD 北大核心 2018年第12期115-118,134,共5页
随着爆炸焊接技术的发展,锆-钢复合板作为一种特殊的耐蚀复合材料,结合了锆优良的耐蚀性能和钢的高强度的优点,在工业中的需求量也逐步增加.以爆炸焊接理论为基础,采用数值模拟和试验分析相结合的方法,在ANSYS/LS-DYNA软件中模拟R60702/... 随着爆炸焊接技术的发展,锆-钢复合板作为一种特殊的耐蚀复合材料,结合了锆优良的耐蚀性能和钢的高强度的优点,在工业中的需求量也逐步增加.以爆炸焊接理论为基础,采用数值模拟和试验分析相结合的方法,在ANSYS/LS-DYNA软件中模拟R60702/TAI/16MnⅢ复合板不同间隙值组合下爆炸焊接的动态过程.分析间隙值对整个R60702/TAI/16MnⅢ复合板爆炸焊接成形的影响.结果表明,当锆-钛间距/钛-钢间距取值为12/6 mm时,可以实现良好焊接.对试验焊接后R60702/TAI/16MnⅢ复合板上不同位置处的试样进行扫描电镜分析,观察复合板界面的结合状况,为选择更合适的工艺条件提供数据支撑,有利于指导生产实践. 展开更多
关键词 爆炸焊接 R60702/tai/16MnⅢ 间隙值
在线阅读 下载PDF
环境因子对双清溪浙江华溪蟹(Sinopotamon chekiangense Tai et Song)种群变动的影响 被引量:2
18
作者 祝丽萍 邵晓阳 章丽芳 《杭州师范学院学报(自然科学版)》 CAS 2005年第2期124-128,共5页
2003~2004年对天目山双清溪主要水体设立16个测站进行水质测定和浙江华溪蟹的种群变动调查,结果表明种群数量出现显著下降趋势.溪蟹种群的个体数量特征是以小型个体为主,随着生长大型个体数量急剧减少;在种群生物量变化中起主导作用的... 2003~2004年对天目山双清溪主要水体设立16个测站进行水质测定和浙江华溪蟹的种群变动调查,结果表明种群数量出现显著下降趋势.溪蟹种群的个体数量特征是以小型个体为主,随着生长大型个体数量急剧减少;在种群生物量变化中起主导作用的是大型个体的数量和规格;种群性别比例维持在3.51~3.91.重金属Zn2+、Gr6+、Gu2+在双清溪中出现并有一定的含量(分别为0.06ppm、23ppb、0.02ppm),这是造成种群生物量和个体规格下降的主要因素之一,其含量变化与溪蟹种群的生物量、个体大小存在显著的负相关关系.研究表明浙江华西蟹种群对环境理化因素的变化比较敏感,可以用溪蟹种群的动态变化反映水体受污染的程度. 展开更多
关键词 种群变动 溪蟹 浙江 环境因子 2003-2004年 tai Zn^2+ 种群生物量 水质测定 小型个体 数量特征 种群数量 个体数量 主导作用 性别比例 含量变化 理化因素 相关关系 个体大小 动态变化 天目山 重金属 水体 下降 规格
在线阅读 下载PDF
小冰麦异附加系TAI-27中附加染色体上NBS同源序列的扩增 被引量:2
19
作者 万里红 周奕华 +3 位作者 石东乔 卜秀玲 何孟元 陈正华 《高技术通讯》 EI CAS CSCD 2001年第2期21-26,共6页
植物对病虫害的抗性主要是由抗病基因 (resistancegene ,R)决定的。目前已经克隆了 2 0多个R基因 ,大部分都属于NBS LRR类 ,这类基因编码NBS(nucleotidebind ingsite ,NBS)和LRR(leucine richrepeat ,LRR)两个比较保守的结构域。植物的... 植物对病虫害的抗性主要是由抗病基因 (resistancegene ,R)决定的。目前已经克隆了 2 0多个R基因 ,大部分都属于NBS LRR类 ,这类基因编码NBS(nucleotidebind ingsite ,NBS)和LRR(leucine richrepeat ,LRR)两个比较保守的结构域。植物的NBS有几个保守区 ,本文根据其中的P loop和GLPL两个保守区设计了简并引物 ,通过PCR扩增NBS序列。在PCR扩增中使用的DNA模板是从小冰麦异附加系TAI 2 7中微分离的附加的单条染色体 ,这条染色体上携带BYDV (barleyyellowdwarfvirus ,BYDV)抗性基因。PCR扩增产物主要有三条带 ,2 0 0bp ,4 0 0bp和 950bp ,将其中的 2 0 0bp(nbsA )和4 0 0bp(nbsB)克隆到 pGEMT vector上并分别测序。 3个nbsA克隆的测序结果完全一致 ;对nbsB的 60多个克隆的不同酶切分析 ,只发现了一个克隆的酶切特性与其他不同。所以说 ,以单条染色体为模板PCR扩增产物组成比较简单 ,省去了RFLP作图的许多工作 ,可以为克隆R基因提供特异性探针。本文的实验设计将染色体微切割和微克隆技术与基因克隆联系在一起 。 展开更多
关键词 抗病基因 小冰麦异附加系tai-27 NBS PCR 同源序列
在线阅读 下载PDF
全国南方区春花生新品种稳产性的Tai模型分析 被引量:1
20
作者 陈海玲 黄金堂 +2 位作者 郑国栋 陈湘瑜 谢志琼 《花生学报》 2013年第4期52-55,共4页
本文运用Tai模型对2012年参加全国南方区花生品种区域试验的13个品种的荚果产量稳定性进行分析评价。结果表明,航花3号、桂花68表现为平均稳定性品种,具有较好的稳产性;汕油诱1号、仲恺花10号等11个品种表现为难以预测品种,产量表现不... 本文运用Tai模型对2012年参加全国南方区花生品种区域试验的13个品种的荚果产量稳定性进行分析评价。结果表明,航花3号、桂花68表现为平均稳定性品种,具有较好的稳产性;汕油诱1号、仲恺花10号等11个品种表现为难以预测品种,产量表现不稳定。 展开更多
关键词 tai模型 稳产性 花生品种
在线阅读 下载PDF
上一页 1 2 212 下一页 到第
使用帮助 返回顶部