抗战时期赵友培的三民主义文艺理论

抗战时期,赵友培以倡导三民主义文艺著称,曾试图从批评中建立三民主义文艺的"理论体系"和"创作纲领",并打开一条"实践之路"。此三者,构成了三民主义文艺政策的全部。三民主义文艺运动的工作中心,在于"创作"。     

基于Flash技术的实验教学课件的设计与研究

以Flash为开发工具,对实验教学课件设计与制作的设计思想、设计原则、开发流程、工具选择及详细设计等五个要点进行了探讨和分析,并最终完成了"袋成型—充填—封口机的认知实验"教学课件的设计与开发。该课件交互性好,质量高,具有较强的实用性。     

Three-Dimension Parametric Simulation of Knitted Fabric Based on the Twisted Loop Model

To enhance the realistic simulation effect of knitted fabric, a new three-dimension （3D） twisted loop model was proposed. This model was constructed by using Non-uniform Rational B-Spline （NURBS） surface. The control points of this surface were generated through rotating the cross-section along the center path of yarn. The cross-section of yarn was generated based on the two-level hexagonal ~lose packing model. Both of the center path and the cross-section were fitted by NURBS. With this twisted loop model, 3D parametric simulation of knitted fabric was realized in 3DS MAX by utilizing MAXScript and analyzing the relationships between structure parameters （including the wale-spacing, the course-spacing, the yarn diameter, .and the fabric thickness） and geometric model. The simulation of knitted fabric has 3D realistic twist effect dearly. Furthermore, the structure parameters and the twist parameters of fabric can be modified interactively.     

制药废水的生物降解研究

以宜昌某制药厂排放废水为碳源和氮源,经过驯化和筛选得到有特异性降解能力的菌株.选择三峡大学求索溪、校医院旁池塘和教师公寓附近池塘这3处不同类型的污泥富集培养,经过第1次驯化发现求索溪污泥中菌株的降解能力最好,降解率约为39.3％.在第1次驯化的接种源基础上继续进行第2次和第3次驯化,发现该菌株的降解能力得到了较大程度的提升,降解率分别为65.5％和78.0％.经过划线分离和纯化,得到对制药厂废水具有极强降解能力的优良菌株QA.用单因素优化法确定了QA菌株降解制药废水的最适条件为温度30℃,pH 7.0,底物体积分数为600 mL/L,且在QA菌株的最适条件下,其降解制药废水70 h时效果最好.     

基于ISO14443A大功率RFID读写器的设计

介绍了基于ISO14443A协议的13.56 MHZ的大功率RFID读写器的设计;给出了读写器的硬件框图及软件流程图,结合实验仿真,给出了示波器的发送信号及接收信号波形;处理器使用了TI公司TMS320F2808,射频电路部分完全采用模拟电路搭建,方便用于功率放大,经过实验,读写器的实际读取距离达到40 cm,满足了工业生产的要求,本设计已经在国内知名酒厂得到了应用。     

香附化学成分的研究

分离鉴定香附的化学成分,为后期的体内活性筛选提供样品.应用硅胶柱层析、凝胶柱层析、薄层制备等方法分离香附中的化学成分,并通过核磁共振等手段对化合物进行结构解析.从香附中分离得到3个化合物,分别为α-香附酮(1)、cyperotundone(2),oxyphyllenones C(3).Oxyphyllenones C为oxyphyllenones B的一种构型异构体,是未见文献报道新化合物.     

Air cushion furnace technology for heat treatment of high quality aluminum alloy auto body sheet

The process characteristics of heat treatment of aluminum alloy auto body sheet and the working principle of air cushion furnace were introduced. The process position and irreplaceable role of air cushion furnace in the aluminum alloy auto body sheet production was pointed out after the difficulty and key points in the whole production process of auto body sheet were studied. Then the development process of air cushion furnace line of aluminum alloy sheet was reviewed, summarized and divided to two stages. Based on the research of air cushion furnace, the key technology of it was analyzed, then the key points on process, equipment and control models of air cushion furnace for aluminum alloy auto body sheet in future were put forward. With the rapid development of automotive industry, there will be certainly a new upsurge of research and application of air cushion furnace for heat treatment of aluminum alloy auto body sheet.     

Simulation of dynamic recrystallization for an Al-Zn-Mg-Cu alloy using cellular automaton

A cellular automata (CA) model has been developed to predict and control the microstructure evolution during hot deformation on 7085 aluminum alloy. The initial microstructure and thermal-mechanical parameters were used as the input data of the CA model. To link microstructure evolution with macroscopic flow stress, dislocation density was set as an important internal state variable. The hot deformation behavior of 7085 aluminum alloy was studied by isothermal compression tests under a deformation temperature range of 623–723 K and a strain rate range of 0.001-1s^?1 up to true strains of 0.53–1.20. Electron backscattered diffraction technique and the CA model were utilized to systematically investigate the effects of strain, strain rate and deformation temperature on the microstructure evolution, and further to predict the average grain diameter and the recrystallization fraction after deformation. The simulated results were validated by the experimental data to demonstrate the feasibility and predictability of the CA model.     

运用模糊数学进行课堂教学评价的方法探讨

课堂教学是学校教育的主要方式,也是学生获得知识和技能、发展认识能力、培养良好思想品德的主渠道。本文首先运用模糊数学原理,确定了课堂教学评价的六项指标体系:教学目的、教学内容、教学方法、教学思想、教学基本功、教学效果,其次分别介绍了两种不同的评价方法:等级赋值法和模糊综合评判法,这两种评价方法操作简便,运用性强,可以使评价更趋合理,不但有利于充分调动教师的积极性,而且对深化教学改革,提高教学质量也具有十分重要的现实意义。     

立井凿井设备选择布置专家系统的实现

立井凿井设备选择布置专家系统采用了分层次的数值与产生式知识表示，正向模糊推理的控制策略，有Ｖｂ和ＡｕｔｏＣＡＤ两种软件工具开发。系统的实现对井设计人员的工作有较大的帮助。