关于清代学者刘熙载文献资源开发的思考

清代学者刘熙载在治学、教学和文艺理论方面成就卓越,留下了若干种著述。论文通过对刘熙载生平及其著述的介绍,论述其文献资源开发的意义,同时根据兴化市图书馆现存文献和国内对刘熙载的研究现状,提出一系列的文献资源开发策略和建立研究基地的设想。     

高校教学秘书工作存在的问题与对策探析

教学秘书在教学管理中起着举足轻重的作用,本文结合自己从事教学秘书的工作实践,阐述了高校教学秘书的重要性,提出了目前教学秘书工作中存在的问题,探析了做好教学秘书工作的对策。     

风雨贞一堂

贞一堂乃徽州祁门渚口倪氏宗祠,因渚口为倪氏贞一堂支派,故得名。重建于1915年的贞一堂,坐落在村中央,坐北朝南,占地1200平方米,三进七开间。前为仪门,中间为享堂,后进是寝室,为二层式建筑,是供奉祖先牌位的地方。整个祠堂由108根大柱支撑,     

从一次冰雹过程看冰雹快速预警的有效方法

大冰雹(直径≥2 cm)为强致灾性天气,目前冰雹预警时效普遍偏短,与社会防灾需求存在一定差距.通过对2016年6月8日长三角地区较为典型的冰雹过程分析,结合实际预警业务经验提出快速冰雹预警流程:首先掌握属地及周边冰雹生消时空规律,提高冰雹易发季节预警敏感度;其次于中短期预报中分析对流种类和强度,判断适合冰雹产生的强对流潜势大小,并检验冰雹特征指标,即0℃层高度、对流有效位能和垂直切变等是否符合经验指标;最后于短临预报中着重监测雷达回波的生成和动态,当初生对流发展迅速、将继续加强并影响责任区时,回波强度达50 dBz、回波顶高达12 km时,即可提前发布冰雹预警.     

Inertial microfluidics in contraction–expansion microchannels: A review

Inertial microfluidics has brought enormous changes in the conventional cell/particle detection process and now become the main trend of sample pretreatment with outstanding throughput, low cost, and simple control method. However, inertial microfluidics in a straight microchannel is not enough to provide high efficiency and satisfying performance for cell/particle separation. A contraction–expansion microchannel is a widely used and multifunctional channel pattern involving inertial microfluidics, secondary flow, and the vortex in the chamber. The strengthened inertial microfluidics can help us to focus particles with a shorter channel length and less processing time. Both the vortex in the chamber and the secondary flow in the main channel can trap the target particles or separate particles based on their sizes more precisely. The contraction–expansion microchannels are also capable of combining with a curved, spiral, or serpentine channel to further improve the separation performance. Some recent studies have focused on the viscoelastic fluid that utilizes both elastic forces and inertial forces to separate different size particles precisely with a relatively low flow rate for the vulnerable cells. This article comprehensively reviews various contraction–expansion microchannels with Newtonian and viscoelastic fluids for particle focusing, separation, and microfluid mixing and provides particle manipulation performance data analysis for the contraction–expansion microchannel design.     

Preparation and evaluation of microcapsule containing volatile oil of Herba Schizonepetae by emulsion solvent diffusion method

Microcapsules of volatile oil containing Herba Schizonepetae(VOHS) were prepared by emulsion solvent diffusion method to improve the drug loading and reduce the amount of pharmaceutical excipients.Orthogonal assay was applied to optimize the preparation condition of microcapsulation,and the results illustrated that the ratio of ethyl cellulose(EC) to VOHS influenced the property of VOHS microcapsule significantly.GC-MS analysis indicated that some volatile components with low concentration in VOHS were lost after microencapsulation.The microcapsules prepared with optimum condition had good fluidity,and the holes on the surface of the microcapsules contributed to the release of VOHS.The particles of the microcapsule conformed to a normal distribution with the diameter of 45—220 μm.In the simulated intestinal fluid containing 0.2% sodium dodecyl sulfate,pulegone in VOHS microcapsule showed a certain degree of slow release.Compared with β-cyclodextrin method,the microencapsulation used in the present work could reduce the amount of excipients and increase the drug loading.It was beneficial to reduce the dose of Chinese medicines containing volatile oils.     

基于PPP模式的政府在线信息归档模型构建研究

文章对澳、美、英三国的既有政府在线信息归档项目进行分析与借鉴,厘清其归档工作主要存在由记忆机构独自承担和记忆机构与社会组织进行合作共同承担两种模式.通过明确记忆机构与社会组织进行合作(PPP模式)的优点,分析其与我国实际情况的契合度,对政府在线信息归档工作主体、归档范围、归档信息利用等工作基本环节进行分别介绍.构建基于PPP模式的以国家综合档案馆为工作主体中心,以社会组织为合作伙伴,以政府在线平台为工作对象的我国政府在线信息归档模型.     

“月”境品读——刘天华《月夜》与德彪西《月光》音乐美学分析

《月夜》和《月光》的创作分别处在中西音乐变革期,有着丰富的创新精神。两者通过二胡和钢琴两种完全不同的乐器诠释作品,中西"月亮文化"的差异影响了两首乐曲的审美意境和曲式。从音乐美学的角度讲,两者蕴含着不同的音乐文化底蕴,以中西方对月亮不同的诗学追求,表达了不同的"月"境。     

响应面法优化胡麻粕总黄酮提取工艺

通过单因素试验考察了乙醇浓度、液料比、超声温度和超声功率对胡麻粕总黄酮提取量的影响,利用Box-Behnken中心组合试验和响应面法进行优化。结果表明胡麻粕总黄酮的最佳提取工艺为:乙醇浓度58.00%、液料比27.50:1(mL/g)、超声温度57.00℃、超声功率240.00 W。在此条件下,胡麻粕总黄酮提取量实测值为29.02 mg/g,与预测值相符。     

风光互补发电系统最大功率跟踪实现电路的研究

本文介绍了风光互补发电系统的构成,对发电系统最大功率跟踪问题进行了分析,研究了一种双输入DC/DC变换器的实现电路,研究结果表明该电路能很好的应用于风光互补发电系统,具有较高的实用价值。