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Activation of endogenous neurogenesis and angiogenesis by basic fibroblast growth factor-chitosan gel in an adult rat model of ischemic stroke 被引量:4
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作者 Hongmei Duan Shulun Li +11 位作者 Peng Hao Fei Hao Wen Zhao Yudan Gao Hui Qiao Yiming Gu Yang Lv Xinjie Bao Kin Chiu Kwok-Fai So Zhaoyang Yang Xiaoguang Li 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第2期409-415,共7页
Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain injury.However,whether bioactiv... Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain injury.However,whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still unknown.In this study,we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in rats.The gel slowly released basic fibroblast growth factor,which improved the local microenvironment,activated endogenous neural stem/progenitor cells,and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons,while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional recovery.This study revealed the mechanism by which bioactive materials repair ischemic strokes,thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke. 展开更多
关键词 adult endogenous neurogenesis ANGIOGENESIS basic fibroblast growth factor-chitosan gel CHITOSAN functional recovery ischemic stroke neural stem cell newborn neuron
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Interpretation of the Standards of Basic Dataset of Chronic Diseases Behavior Risk Factor Surveillance in Adults
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作者 ZHAO Yan Fang ZHANG Mei +3 位作者 WEI Wen Qiang SUN Ke Xin LI Xin Hua WANG Li Min 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第5期551-556,共6页
BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one p... BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one province^([1]).Drawing on the World Health Organization’s(WHO)STEPwise approach to surveillance(STEPs)and the U.S.Behavioral Risk Factor Surveillance System(BRFSS)^([2,3]). 展开更多
关键词 funded basic originated
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Standards of Basic Dataset of Chronic Disease Behavior Risk Factor Surveillance in Adults
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《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第5期549-550,共2页
1 Scope This document specifies the metadata attributes and data element attributes for the adult chronic disease behavior risk factor surveillance dataset.It is applicable to the collection of data for the surveillan... 1 Scope This document specifies the metadata attributes and data element attributes for the adult chronic disease behavior risk factor surveillance dataset.It is applicable to the collection of data for the surveillance,survey,intervention and assessment of chronic disease behavior risk factors by health administrative departments,disease prevention and control institutions. 展开更多
关键词 PREVENTION basic CHRONIC
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Literature overview of basic characteristics and flotation laws of flocs
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作者 Wanzhong Yin Yu Xie Zhanglei Zhu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第5期943-958,共16页
Flocculation flotation is the most efficient method for recovering fine-grained minerals,and its essence lies in flotation and recovery of flocs.Fundamental physical characteristics of flocs are mainly determined by t... Flocculation flotation is the most efficient method for recovering fine-grained minerals,and its essence lies in flotation and recovery of flocs.Fundamental physical characteristics of flocs are mainly determined by their apparent particle size and structure(density and morphology).Substantial researches have been conducted regarding the effect of floc characteristics on particle settling and water treatment.However,the influence of floc characteristics on flotation has not been widely studied.Based on the floc formation and flocculation flotation,this study reviews the fundamental physical characteristics of flocs from the perspectives of floc particle size and structure,summarizing the interaction between floc particle size and structure.Moreover,it thoroughly discusses the effect of floc particle size and structure on floc floatability,further revealing the influence of floc characteristics on bubble collision and adhesion and elucidating the mechanisms of interaction between flocs and bubbles.Thus,it is observed that floc particle size is not the only factor influencing flocculation flotation.Within the appropriate apparent particle size range,flocs with a compact structure exhibit higher efficiency in bubble collision and adhesion during flotation,thereby resulting in enhanced flotation performance.This study aims to provide a reference for flocculation flotation,targeting the development of more efficient and refined flocculation flotation processes in the future. 展开更多
关键词 FLOCS basic characteristics particle size and structure flotation laws BUBBLES
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Gentiana macrophylla Pall.:a review of the basic source,traditional use,chemical components,pharmacological activities and quality control
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作者 Qi-Er Mu Yi-Sa A +1 位作者 Yan-Qiu Bai Chu-La Sa 《Traditional Medicine Research》 2024年第12期13-30,共18页
Gentiana macrophylla Pall.(G.macrophylla),whose genus and family belong to the Gentianaceae and Gentiana.The main distribution centers of G.macrophylla resources were the Loess Plateau and the eastern Qinghai-Tibet Pl... Gentiana macrophylla Pall.(G.macrophylla),whose genus and family belong to the Gentianaceae and Gentiana.The main distribution centers of G.macrophylla resources were the Loess Plateau and the eastern Qinghai-Tibet Plateau in China.G.macrophylla,as a traditional medicine,has a long history and was used in different ethnic medicines.Its roots were used in traditional Chinese medicine,which had the effect of anti-inflammatory,anti-rheumatism,antiviral,promote blood circulation,eliminate swelling and pain,while its flowers were used in traditional Mongolian medicine,which had the effect of removing“Xieriwusu”(“Xieriwusu”means rheumatism),antiviral,reducing swelling.From previous studies,it could be found that there were more than forty components isolated and identified from G.macrophylla.The main chemical components were iridoids,flavonoids,triterpenoids,steroids,phenylpropanoids,and alkaloids.Iridoid terpenoid components represented by gentiopicroside and Loganic acid were the main components of the root of G.macrophylla,which had anti-inflammatory,antioxidant,hepatoprotective,analgesic,antibacterial and promote gastrointestinal tract activities.The flower mainly contains isoorientin and isovitexin as the representative of flavonoids.They have anti-tumor,liver protection,heart protection,inhibition of acetylcholinesterase and inhibition of melanin.It could be seen from previous studies that the research on G.macrophylla was mainly focused on the root,and the flower was rarely studied.It was reported that the experimental data of the anti-inflammatory and anti-tumor effects of G.macrophylla flowers show that its curative effect was very good.Therefore,the flowers of the flower of G.macrophylla can be used as potential medicinal parts for research.Given that flavonoids are mostly found in flowers and exhibit a range of functions,it is possible to investigate the flowers in order to learn more about G.macrophylla’s potential medical benefits.Based on botanical books,Chinese classic texts,medical monographs and academic search engines(Google,Google Scholar,Web of Science,SciFinder,Pubmed,CNKI,Sci-hub,Elsevier and Wanfang),the data and information on G.macrophylla in the past 20 years are inquired and summarized comprehensively.The basic source,traditional use,chemical composition,biological activity,pharmacodynamics and quality control of G.macrophylla was systematically reviewed,in order to provide reliable basis for the subsequent development and utilization of G.macrophylla. 展开更多
关键词 Gentiana macrophylla Pall basic source chemical component pharmacological activity quality control
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Activation of adult endogenous neurogenesis by a hyaluronic acid collagen gel containing basic fibroblast growth factor promotes remodeling and functional recovery of the injured cerebral cortex
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作者 Yan Li Peng Hao +6 位作者 Hongmei Duan Fei Hao Wen Zhao Yudan Gao Zhaoyang Yang Kwok-Fai So Xiaoguang Li 《Neural Regeneration Research》 SCIE CAS 2025年第10期2923-2937,共15页
The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after injury.However,whether it is possible to stimulate ne... The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after injury.However,whether it is possible to stimulate neurogenesis and reconstruct cortical layers II to VI in non-neurogenic regions,such as the cortex,remains unknown.In this study,we implanted a hyaluronic acid collagen gel loaded with basic fibroblast growth factor into the motor cortex immediately following traumatic injury.Our findings reveal that this gel effectively stimulated the proliferation and migration of endogenous neural stem/progenitor cells,as well as their differentiation into mature and functionally integrated neurons.Importantly,these new neurons reconstructed the architecture of cortical layers II to VI,integrated into the existing neural circuitry,and ultimately led to improved brain function.These findings offer novel insight into potential clinical treatments for traumatic cerebral cortex injuries. 展开更多
关键词 adult endogenous neurogenesis basic fibroblast growth factor-hyaluronic acid collagen gel cortical remodeling functional recovery migration motor cortex injury neural circuits neural stem cells newborn neurons proliferation
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Challenges of Bioethics Education in Pediatric Basic Nursing Education: A Faculty Perspective
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作者 Junko Nemoto Chikage Kubota Yukiko Yoshikawa 《Health》 2024年第2期105-117,共13页
In the field of pediatric nursing, in the perinatal period, numerous ethical issues arise alongside the advancement of medical technology. However, sufficient education on bioethics is not provided in the pediatric nu... In the field of pediatric nursing, in the perinatal period, numerous ethical issues arise alongside the advancement of medical technology. However, sufficient education on bioethics is not provided in the pediatric nursing domain of basic nursing education. The purpose of this research is to examine the current status of bioethics education in the pediatric nursing domain of basic nursing education and explore the challenges perceived by the pediatric nursing faculty regarding bioethics education. The research method was a questionnaire survey on 100 randomly selected pediatric nursing faculty members from nursing universities across Japan. The results revealed that although bioethics issues were considered important, the emphasis remained primarily on addressing bioethics as part of nursing that respects children’s rights. Furthermore, respondents expressed difficulties regarding teaching methods and content related to bioethics. 展开更多
关键词 basic Nursing Education Bioethics Education Pediatric Nursing
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Four Dimensions of Integrating Chinese Culture Into College English Teaching From the Perspective of Tyler’s Basic Principles
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作者 CHEN Lijuan 《Sino-US English Teaching》 2024年第5期232-237,共6页
Integrating Chinese culture into college English can not only enhance students’humanities literacy and cultivate their cultural confidence,but also facilitate the inheritance and international dissemination of Chines... Integrating Chinese culture into college English can not only enhance students’humanities literacy and cultivate their cultural confidence,but also facilitate the inheritance and international dissemination of Chinese culture.Taking Tyler’s curriculum framework as the starting point,this paper analyzes some factors that affect the integration of Chinese culture into the college English teaching and proposes some strategies for the integration of Chinese culture into college English teaching by innovating teaching objectives,enriching teaching contents,transforming modes of course delivery,and reconstructing the assessment system. 展开更多
关键词 Tyler’s basic principles Chinese culture college English
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Current Status of Clinical Application and Basic Research on Draba nemerosa Hebecarpa Jujube Lung-Diarrhoea Soup
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作者 Yong Fan 《Journal of Biosciences and Medicines》 2024年第5期144-153,共10页
The clinical application and basic research of Draba nemerosa Hebecarpa jujube diarrhoea lung soup focus on respiratory diseases and circulatory diseases, and its clinical application is more compared with the basic r... The clinical application and basic research of Draba nemerosa Hebecarpa jujube diarrhoea lung soup focus on respiratory diseases and circulatory diseases, and its clinical application is more compared with the basic research, and Draba nemerosa Hebecarpa jujube diarrhoea lung soup is mostly used in the form of “Draba nemerosa Hebecarpa Hebecarpa jujube diarrhoea lung soup with additional subtractions or other formulas combining Draba nemerosa Hebecarpa Hebecarpa Hebecarpa jujube diarrhoea lung soup” in the clinical application. This article will focus on the main mechanisms of Draba nemerosa Hebecarpa jujube diarrhoea lung soup and its main components in the treatment of respiratory and circulatory diseases, and will give a review of the basic research on Draba nemerosa Hebecarpa Hebecarpa jujube diarrhoea lung soup as follows. 展开更多
关键词 Draba nemerosa Hebecarpa Jujube Laxative Lung Soup Clinical Application basic Research
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China's textile industry in the first half of 2024 basically stable
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作者 Zhong Mengxia 《China Textile》 2024年第4期40-42,共3页
In July,the General Council of China National Textile and Apparel Council (hereinafter referred to as CNTAC) was held in Beijing.The economic operation of China's textile industry in the first half of2024 was rele... In July,the General Council of China National Textile and Apparel Council (hereinafter referred to as CNTAC) was held in Beijing.The economic operation of China's textile industry in the first half of2024 was released at the meeting. 展开更多
关键词 Beijing. INDUSTRY basically
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Analysis of the Effect of The Error Method Demonstration in The Teaching of Basic Nursing Laboratory Operation
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作者 Hui Chen Qian Wang 《Journal of Clinical and Nursing Research》 2024年第4期186-190,共5页
Objective: This paper is mainly to deeply study and systematically explore the practical application of the error- demonstrating method in the teaching of basic nursing laboratory operation and the impact and effect i... Objective: This paper is mainly to deeply study and systematically explore the practical application of the error- demonstrating method in the teaching of basic nursing laboratory operation and the impact and effect it produces. Methods: 80 cases of nursing interns in our school were randomly selected for analysis and research from January 2023 to December 2023, 40 cases of traditional teaching methods were named as the reference group, and 40 cases of demonstration and error methods were named as the seminar group and in-depth analysis and evaluation of the teaching effect of the two groups after the implementation of different teaching modes were carried out. Results: The seminar group achieved remarkable results in terms of teaching effect, and the performance of the interns in this group was significantly better than that of the reference group in terms of medical key skills such as aseptic operation technique, intravenous infusion operation, intramuscular injection operation, and catheterization operation, P < 0.05, which is of research value. Conclusion: After the nursing interns received the teaching intervention of the demonstration of the error method, their experimental operation performance and hands-on ability were significantly improved, and at the same time effectively stimulated their interest in learning, which is worth using. 展开更多
关键词 Teaching effectiveness Error-demonstrating method basic nursing Traditional teaching
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基于Visual Basic 和ANSYS 的圆筒门架自动化分析方法
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作者 周宝 窦凤楼 +2 位作者 陈凡 牟寿堂 胡茂 《港口装卸》 2024年第2期9-10,45,共3页
利用Visual Basic开发交互界面,封装ANSYS的参数化设计语言程序,开发一种圆筒门架自动化分析软件。该软件包括参数设置模块、无模型分析模块、有模型分析模块、处理显示模块及存储模块,可简化有限元分析的前处理及后处理过程,可通过修... 利用Visual Basic开发交互界面,封装ANSYS的参数化设计语言程序,开发一种圆筒门架自动化分析软件。该软件包括参数设置模块、无模型分析模块、有模型分析模块、处理显示模块及存储模块,可简化有限元分析的前处理及后处理过程,可通过修改参数分析各种尺寸、角度、载荷大小的设计工况或方案,提高分析效率,实现圆筒门架自动化分析,为技术人员提供便捷的设计分析平台。 展开更多
关键词 圆筒门架 有限元分析 ANSYS Visual basic
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A Study on the Work Process-Based Practical Training Model for Basic Nursing Skills in Vocational Colleges
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作者 Dan Li Huan Wei 《Journal of Clinical and Nursing Research》 2024年第9期128-132,共5页
Objective:To explore and analyze the work process-based practical training teaching model for basic nursing skills in vocational colleges and its implementation effects.Methods:A total of 82 nursing students from our ... Objective:To explore and analyze the work process-based practical training teaching model for basic nursing skills in vocational colleges and its implementation effects.Methods:A total of 82 nursing students from our school were selected for the study,which was conducted from April 2023 to April 2024.Using a random number table method,the students were divided into an observation group and a control group,each with 41 students.The control group received conventional practical training teaching,while the observation group followed the work process-based practical training model for basic nursing skills.The assessment scores and teaching satisfaction of the two groups were compared.Results:The comparison of assessment scores showed that the observation group performed significantly better than the control group(P<0.05).The comparison of teaching satisfaction also indicated that the observation group had significantly higher satisfaction than the control group(P<0.05).Conclusion:The work process-based practical training teaching model for basic nursing skills in vocational colleges can improve students’assessment scores and enhance teaching satisfaction,demonstrating its value for wider application. 展开更多
关键词 Work processes Vocational colleges basic nursing skills Practical training teaching model
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Visul Basic在汽车COC备案中的应用
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作者 吴鲁宁 侯宁 李桃 《重型汽车》 2024年第1期31-32,共2页
使用Visual Basic开发辅助备案客户端,着力提高COC在线备案的准确率及效率。辅助备案客户端完成备案后可自动下载Excel版COC证书并导入企业一致性证书打印系统,大幅提高企业在线备案的效率及准确率。
关键词 Visual basic 强制性认证 一致性证书
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Teaching Reform of Basic Medicine Curriculum by Integrating the Perspective of Curriculum Civics and Politics in the Context of Healthy China
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作者 Jiamei Wu Baxin Wang +2 位作者 Tianrong Xing Yanan Su Lei Liu 《Journal of Contemporary Educational Research》 2024年第4期132-137,共6页
Basic medicine is the foundation of basic knowledge of medical science,life science,and natural science,and is the basis for training medical talents.It can help students correctly understand the relationship between ... Basic medicine is the foundation of basic knowledge of medical science,life science,and natural science,and is the basis for training medical talents.It can help students correctly understand the relationship between disease and health,and is of great significance under the perspective of the Healthy China strategy.However,there are still some deficiencies in the current teaching,and insufficient attention has been paid to civics and politics.Thus,it is necessary to carry out curriculum reform in order to enable students to better understand medical knowledge and master medical skills,to ensure the development of medical education,and to play an important role in basic medicine.This study combines the necessity of curriculum reform under the perspective of civics and politics and puts forward a teaching reform strategy suitable for the development of contemporary medicine to provide a direction for the educational development of basic medicine. 展开更多
关键词 Healthy China Curriculum civics and politics basic medicine
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Clinical Observation of Recombinant Bovine Basic Fibroblast Growth Factor Eye Gel Combined with Tobramycin Dexamethasone Eye Drops in the Treatment of Dry Eye Syndrome in Patients after Cataract Surgery
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作者 Zhishun Mao Xiaoxue Mei 《Journal of Clinical and Nursing Research》 2024年第8期296-301,共6页
Objective:To evaluate the therapeutic effect of recombinant bovine basic fibroblast growth factor(rbFGF)eye gel combined with tobramycin-dexamethasone(TOB-Dex)eye drops on dry eye syndrome(DES)after cataract surgery.M... Objective:To evaluate the therapeutic effect of recombinant bovine basic fibroblast growth factor(rbFGF)eye gel combined with tobramycin-dexamethasone(TOB-Dex)eye drops on dry eye syndrome(DES)after cataract surgery.Methods:86 patients with DES after cataract surgery,admitted from November 2021 to November 2023,were randomly divided into groups.The observation group included 43 patients treated with rbFGF eye gel combined with TOB-Dex eye drops.The reference group included 43 patients treated with TOB-Dex eye drops alone.Multiple indicators,including total effective rate and clinical symptom scores,were compared between the two groups.Results:The total effective rate in the observation group was higher than in the reference group(P<0.05).Before treatment,there were no differences in clinical symptom scores,serum factors,or disease severity scores between the two groups(P>0.05).Three weeks after treatment,the observation group had lower clinical symptom scores,serum factors,and disease severity scores compared to the reference group(P<0.05).The adverse reaction rate in the observation group was lower than in the reference group(P<0.05).Conclusion:rbFGF eye gel combined with TOB-Dex eye drops can improve the clinical efficacy for patients with DES after cataract surgery,alleviate disease symptoms,reduce inflammatory responses,and have fewer adverse reactions. 展开更多
关键词 Recombinant bovine basic fibroblast growth factor eye gel Tobramycin-dexamethasone eye drops Cataract surgery Dry eye syndrome
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Recent Advances of Transition Metal Basic Salts for Electrocatalytic Oxygen Evolution Reaction and Overall Water Electrolysis 被引量:13
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作者 Bingrong Guo Yani Ding +4 位作者 Haohao Huo Xinxin Wen Xiaoqian Ren Ping Xu Siwei Li 《Nano-Micro Letters》 SCIE EI CAS CSCD 2023年第4期238-260,共23页
Electrocatalytic oxygen evolution reaction(OER)has been recognized as the bottleneck of overall water splitting,which is a promising approach for sustainable production of H_(2).Transition metal(TM)hydroxides are the ... Electrocatalytic oxygen evolution reaction(OER)has been recognized as the bottleneck of overall water splitting,which is a promising approach for sustainable production of H_(2).Transition metal(TM)hydroxides are the most conventional and classical non-noble metal-based electrocatalysts for OER,while TM basic salts[M^(2+)(OH)_(2-x)(A_(m^(-))_(x/m),A=CO_(3)^(2−),NO_(3)^(−),F^(−),Cl^(−)]consisting of OH−and another anion have drawn extensive research interest due to its higher catalytic activity in the past decade.In this review,we summarize the recent advances of TM basic salts and their application in OER and further overall water splitting.We categorize TM basic salt-based OER pre-catalysts into four types(CO_(3)^(2−),NO_(3)^(−),F^(−),Cl^(−)according to the anion,which is a key factor for their outstanding performance towards OER.We highlight experimental and theoretical methods for understanding the structure evolution during OER and the effect of anion on catalytic performance.To develop bifunctional TM basic salts as catalyst for the practical electrolysis application,we also review the present strategies for enhancing its hydrogen evolution reaction activity and thereby improving its overall water splitting performance.Finally,we conclude this review with a summary and perspective about the remaining challenges and future opportunities of TM basic salts as catalysts for water electrolysis. 展开更多
关键词 Transition metal basic salts ELECTROCATALYTIC Oxygen evolution reaction(OER) Overall water electrolysis
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改进Basic Theta^(*)中LOS算法的任意角度路径规划
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作者 陈正泽 彭力 戴菲菲 《计算机科学与探索》 CSCD 北大核心 2023年第4期837-847,共11页
针对传统A^(*)算法在进行机器人路径规划时,生成的路径只能沿网格方向进行,带来冗余路径的产生,导致规划的路径非最优路径等问题,提出了一种对A^(*)算法的改进策略。首先,设计Basic Theta^(*)算法,改进A*算法的搜索方式,通过引入视线算... 针对传统A^(*)算法在进行机器人路径规划时,生成的路径只能沿网格方向进行,带来冗余路径的产生,导致规划的路径非最优路径等问题,提出了一种对A^(*)算法的改进策略。首先,设计Basic Theta^(*)算法,改进A*算法的搜索方式,通过引入视线算法(LOS),增加搜索过程中非网格方向路径的选择,实现任意角度的路径规划;其次,对Basic Theta^(*)算法中的LOS进行改进,提出一种基于网格中心点的视线检测算法,提高Basic Theta_(*)算法规划路径的可实现性。为了验证改进A^(*)算法和改进Basic Theta^(*)算法的效果,在五种不同尺寸的栅格地图中进行仿真测试,仿真结果表明,改进后的A^(*)算法能够在运行时间基本不变的情况下实现路径沿任意角度进行,打破网格的限制,剔除冗余路径,降低路径长度,路径长度的缩减率可达到8%;改进的Basic Theta^(*)算法在保证路径长度基本不变的情况下,能够有效优化传统Basic Theta^(*)算法路径中存在的不符合机器人运动学的路径,同时缩短Basic Theta^(*)算法的运行时间,提高算法的运行效率,规划的路径能够满足机器人运动的实际要求。 展开更多
关键词 路径规划 basic Theta^(*)算法 任意角度路径 改进LOS
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JONES TYPE C^(*)-BASIC CONSTRUCTION IN NON-EQUILIBRIUM HOPF SPIN MODELS
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作者 魏晓敏 蒋立宁 《Acta Mathematica Scientia》 SCIE CSCD 2023年第6期2573-2588,共16页
Let H be a finite dimensional Hopf C^(*)-algebra,and let K be a Hopf^(*)-subalgebra of H.Considering that the field algebra■K of a non-equilibrium Hopf spin model carries a D(H,K)-invariant subalgebra ■K,this paper ... Let H be a finite dimensional Hopf C^(*)-algebra,and let K be a Hopf^(*)-subalgebra of H.Considering that the field algebra■K of a non-equilibrium Hopf spin model carries a D(H,K)-invariant subalgebra ■K,this paper shows that the C^(*)-basic construction for the inclusion ■K×■K can be expressed as the crossed product C^(*)-algebra■KD(H,K).Here,D(H,K)is a bicrossed product of the opposite dual H^(op) and K.Furthermore,the natural action of D(H,K)on D(H,K)gives rise to the iterated crossed product■KD(H,K)×D(H,K),which coincides with the C^(*)-basic construction for the inclusion■K×■KD(H,K).In the end,the Jones type tower of field algebra■Kis obtained,and the new field algebra emerges exactly as the iterated crossed product. 展开更多
关键词 field algebra conditional expectation basic construction C*-tower
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Compressive Strength of Basic Magnesium Sulfate Cement Coral Aggregate Concrete(MCAC)on Non-Destructive Testing
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作者 GUO Jianbo YU Hongfa +3 位作者 MA Haiyan CHANG Yun MEI Qiquan ZHANG Yan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2023年第5期1086-1095,共10页
Basic magnesium sulfate cement coral aggregate concrete(MCAC)is a new type of concrete consisting of basic magnesium sulfate cement,coarse coral aggregate,coral reef sand and seawater.The rebound hammer(RH),the ultras... Basic magnesium sulfate cement coral aggregate concrete(MCAC)is a new type of concrete consisting of basic magnesium sulfate cement,coarse coral aggregate,coral reef sand and seawater.The rebound hammer(RH),the ultrasonic pulse velocity(UPV)and the compressive strength(fcu)tests of 14 sets of cube specimens of the MCAC after 28 d of aging were conducted.The impact of the content and length of sisal fiber on the relationship between the fcu-RH and the fcu-UPV was determined.A mathematical model was established to predict the strength of the MCAC using the UPV,RH,and comprehensive UPV/RH methods and to obtain the curves of test strength.The applicability of the test strength curves of ordinary portland concrete(OPC),light-weight aggregate concrete(LAC),and coral aggregate concrete(CAC)to MCAC was assessed.The results showed that the test strength curves of OPC,LAC and CAC were inappropriate to determine the strength of MCAC using non-destructive method.The relative standard error of the curves of test strength of the RH method and the comprehensive method met the specifications,whereas that of the UPV method did not. 展开更多
关键词 non-destructive testing basic magnesium sulfate cement coral aggregate corcrete ultrasonic pulse velocity rebound hammer specific test strength curves
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