为研究低温环境下石灰岩机制砂及石粉对混凝土抗硫酸盐侵蚀性能的影响,以掺/未掺石灰岩石粉的机制砂砂浆、掺/未掺石灰岩石粉的天然砂砂浆为模拟对象,结合硫酸盐腐蚀介质及低温环境特点,采用温度(5±1)℃的5％的MgSO4溶液模拟服役环境,对比研究了不同腐蚀龄期(0 d、60 d、90 d、210 d、270 d、360 d)试件的外观和强度变化,并基于XRD、FTIR测试分析了侵蚀产物.结果表明:随着龄期的增长,侵蚀方式由传统的钙矾石型硫酸盐侵蚀逐渐过渡到以碳硫硅酸钙为侵蚀产物的TSA岩侵蚀;石灰岩机制砂和石粉均能促使砂浆产生TSA侵蚀,且石粉的影响更加明显.

研究了石灰、水泥掺量对循环流化床(CFB)粉煤灰-磷建筑石膏胶凝材料强度与耐水性能的影响,通过正交试验优化了CFB粉煤灰-水泥-石灰复合改性磷建筑石膏胶凝材料配合比,并采用X射线衍射(XRD)和扫描电镜(SEM)测试了改性石膏的水化产物和微观结构.结果表明,CFB粉煤灰掺量为10％时,较低掺量(1％～5％)的石灰能够明显增强CFB粉煤灰-磷建筑石膏胶凝材料强度,较高掺量(8％～12％)的水泥能够明显增强CFB粉煤灰-磷建筑石膏胶凝材料的耐水性能;经10％CFB粉煤灰、12％水泥和3％石灰复合改性,磷建筑石膏胶凝材料后期强度和耐水性能得到显著提高;复合改性石膏水化生成的水化硅酸钙(C-S-H)凝胶和钙矾石包裹并填充到二水硫酸钙晶体孔隙中,使得其水化产物孔结构得到优化,呈现出更致密的微观结构.

制备磷建筑石膏制品是磷石膏资源化利用的一条重要途径,而合适的改性技术是保证建筑石膏制品能够工业化生产的关键.分别利用3种减水剂、3种缓凝剂、2种黏结剂、2种保水剂对磷建筑石膏进行改性,探讨外加剂品种对磷建筑石膏的适应性,研究外加剂掺量对磷建筑石膏的性能影响规律,并采用扫描电镜对优选出的外加剂的改性机理进行分析.结果表明:聚羧酸减水剂(PC)、醋酸乙烯酯-乙烯共聚物可再分散乳胶粉黏结剂(VAE)、羟丙基甲基纤维素保水剂(HPMC)和骨胶缓凝剂(BG)对磷建筑石膏具有较好的适应性,可分别用于改善磷建筑石膏的绝干强度、黏结强度、保水性能及延长其凝结时间;PC和VAE能改善磷建筑石膏硬化体内部晶体结构的致密性,而BG、HPMC则使磷建筑石膏硬化体结构更加疏松.

为获得花岗岩机制砂的适宜石粉含量范围,依托某高速公路项目,研究机制砂的石粉含量(5％、7％、10％、14％)对不同强度等级混凝土(C20～C50)的工作性能、强度和抗氯离子渗透性能的影响.结果表明,机制砂石粉含量对混凝土的性能影响规律与混凝土强度等级有关.当石粉含量在5％ ～7％ 时,石粉含量的增加对混凝土的工作性能影响不明显,在7％ ～14％ 的石粉含量范围内,随石粉含量增加,混凝土达到相同工作性所需要的减水剂用量增多;随着石粉含量的增加,C20、C25、C30混凝土的抗压强度和抗氯离子渗透性随之增大,而C40、C50混凝土的抗压强度和抗氯离子渗透性则呈现先增大后减小的趋势,且在石粉含量为10％ 时最佳.

Objective:To examine the dissolution curves of naproxen capsules from different manufacturers,study the dissolution difference determined respectively under the conditions of Japanese pharmacopoeia and Chinese Pharmacopoeia,and analyze the quality controllability of the current dissolution methods.Method:The dissolution of naproxen capsules was studied by rotating basket method respectively in distilled water,pH1.2,pH4.0,pH6.8 and pH7.4 medium.The similarity of the dissolution curves was evaluated with /factor method.Result:Compared with the Japanese standard dissolution curve,the dissolution curves of naproxen capsules from different manufacturers were significantly different,and the domestic naproxen capsules showed slower dissolution.The two marketed products both met the requirements of Chinese Pharmacopoeia,however still with significant difference in the dissolution curves,suggesting the quality differences.Conclusion:The existing dissolution limiting(Q) can not reflect the inherent differences in the preparation quality.It is recommended that manufacturers apply drug dissolution curves to assess the production process,formulation and quality of the preparations.

Based on reference documentation,this paper,in the light of practical teaching experience,discusses the technical training of international wrestlers' tricks,and provides some materials and reference for coaches and athletes on the cultivation of wrestling trick technology.

From the perspective of methodology,the present paper explored the vision of presentlogy of traditional Wushu research.It held that the proposal of presentlogy vision in traditional Wushu research is based on the requirements for studying the problem domain of traditional and on the intrinsic qualities of "constant transcending" in traditional Wushu.In the application of the presentlogy research paradigm of traditional Wushu,attention should be attached to the historic horizon conversion of traditional Wushu presentation,the spatial differences in traditional Wushu presentation and the dialectic unity between historic horizon conversion and spatial differences.

With the research methods of literature study,expert interview and logic analysis,the paper discusses the classroom teaching environment evaluation of common P.E.course in ordinary universities.The paper discusses the evaluation content,process,organization and application.The paper proposes that the effective classroom teaching environment evaluation should be realized by improving the evaluation content,tools,process and model.

随着马克思主义法学中国化、时代化、大众化的不断深入,在依法治国的实践中,逐步形成了中国特色社会主义法治理念体系。其指导思想是社会主义法治理念;基本原则是"三者统一",即党的领导、人民当家作主、依法治国的统一;实现路径是中国特色社会主义法治道路;运行机制是中国特色社会主义立法、执法、司法、守法和护法制度。

The use of literature,expert interviews and other research on college students the development of leisure fitness study,the aim is through research,university students develop leisure fitness programmers to help the theory.Students develop an effective programmer of leisure fitness,you can guide the students actively carry out fitness activities.Students of leisure fitness programmer development phase of higher education is the embodiment of innovative sports,is fully carried out Sunshine Physical Education project a strong move one of its training students for life sports sense of the importance of achieving significance.

The reason why Chinese traditional martial arts has a long history and lasted heritance is due to the important role of the educational content and method of Chinese traditional martial arts as the educational media.By means of literature survey and logical reasoning,the author has studied the educational media of Chinese traditional martial arts.It is concluded that the educational content of traditional martial arts has a pluralistic yet integrated structure and its educational methods include teaching in accordance with students' aptitude and proceeding step by step,etc.

This paper introduces a device used for identifying the wine product based on the MSP430F413.The technigues of non-contact RF IC card,and of keeping the data safe in the communication are discussed.The hardware and software of the system are outlined.

From the point of view of the study of culture,by means of literature review,investigations and deductive method,the author has analyzed a number of cultural factors in Wushu Education after classification so as to help people to recognize the function of cultural transition in Wushu education.These factors include the cultural factor of Language used in Wushu such as the technical terms and language styles in Wushu and the non-language factors such as the expressions of eyes and body languages.

氰酸酯树脂(Cyanate Ester Resin,CE)是一种新型的热固性高性能树脂,它具有良好的介电性能、耐热性能和工艺性能,但其韧性和模量还有待进一步提高。主要研究了国内外各种改性氰酸酯树脂的性能,并着重阐述双马来酰亚胺树脂(BMI)与环氧树脂(EP)改性氰酸酯树脂(CE)的树脂体系的研究,及其物理机械性能、介电性能等。

"马克思主义法学中国化"是"马克思主义中国化"的重要组成部分. 马克思主义法学的产生,是法学史上的伟大变革,它以唯物史观为理论基础,深刻揭示法的产生、本质、作用和发展规律,使法学成为了真正的科学.