Survey on nonlinear reconfigurable flight control

An overview on nonlinear reconfigurable flight control approaches that have been demonstrated in flight-test or highfidelity simulation is presented. Various approaches for reconfigurable flight control systems are considered, including nonlinear dynamic inversion, parameter identification and neural network technologies, backstepping and model predictive control approaches. The recent research work, flight tests, and potential strength and weakness of each approach are discussed objectively in order to give readers and researchers some reference. Finally, possible future directions and open problems in this area are addressed.     

Prediction of shelled shrimp weight by machine vision

The weight of shelled shrimp is an important parameter for grading process. The weight prediction of shelled shrimp by contour area is not accurate enough because of the ignorance of the shrimp thickness. In this paper, a multivariate prediction model containing area, perimeter, length, and width was established. A new calibration algorithm for extracting length of shelled shrimp was proposed, which contains binary image thinning, branch recognition and elimination, and length reconstruction, while its width was calculated during the process of length extracting. The model was further validated with another set of images from 30 shelled shrimps. For a comparison purpose, artificial neural network (ANN) was used for the shrimp weight predication. The ANN model resulted in a better prediction accuracy (with the average relative error at 2.67%), but took a tenfold increase in calculation time compared with the weight-area-perimeter (WAP) model (with the average relative error at 3.02%). We thus conclude that the WAP model is a better method for the prediction of the weight of shelled red shrimp.     

关于高职教育应用型人才培养的思考

为了培养大批合格的高级技术应用型人才,必须转变教育观念,变“知识本位”为“能力本位”,加强教学内容的针对性和实用性,大力培养“双师型”教师,加强实训基地建设以及改革考试制度等。     

浅谈医疗保险制度改革

阐述了我国社会医疗保险制度改革中坚持以人为本，在不断的完善中持续发展，为参保人员带来实惠和优越性。     

乙酰苯胺选择性硝化最佳工艺条件研究

乙酰苯胺经选择性硝化可得重要的有机中间体对硝基乙酰苯胺。目前工业上采用混酸低温硝化．反应时间长，能耗大．该文通过乙酰苯胺硝化的单因素及正交试验、得到了制备对硝基乙酰苯胺的最佳工艺条件，与现行工艺相比，反虑温度由5℃提高到20℃，反应时间由20h缩短到2h，降低生产成本，提高生产能力。     

鸡内金活性炭对酸碱性染料的吸附

以鸡内金(ECGG)为原料,在氩气保护下,先在450℃下高温炭化,后添加KOH作为活化剂,分别选取800、900、1 000℃作为活化温度,制备出3种类型活性炭(ECGG-800、EGGG-900和EGGG-1000).对3种类型活性炭表征分析,并选取ECGG-900做酸性品红和亚甲基蓝的吸附饱和,进行2种最常用的吸附模型Freundlich和Langmuir的拟合.结果表明,用Freundlich吸附等温线模型能解释鸡内金活性炭对酸性染料的吸附;而对于碱性染料的吸附,则Langmuir吸附等温线模型更有说服力;且该活性炭对酸性品红、亚甲基蓝的吸附量分别可达1.682 g/g和2.045 g/g.随着吸附时间的延长,3种活性炭对染料的去除率也随即增大.鸡内金活性炭对处理酸性和碱性染料效果均佳,是一种具有发展潜力的吸附剂.     

Piosson分布参数的p-值检验

首先给出一个定理揭示Poisson分布与伽马分布的关系,利用充分性原理获得了检验统计量.进一步给出Poisson分布参数的单侧显著性检验p-值的计算方法,并结合实例对所给方法进行演示.     

关于太原城市文化建设的几点思考

文章从构建太原“人通天下”的城市主题文化,打造“晋阳文化”品牌,建设学习型太原三个方面,对太原的城市文化建设做出了分析,并提出了建设的方向和措施。     

现代艺术设计的人性化

现代机械式的学习、工作、生活习惯，使人们的身心受到巨大的损害。在市场经济的冲击下，人们的人生观、价值观都发生了不同程度的转变。通过艺术设计的理念、色彩、形态、和其与环艺相结合的多个角度来关注人本身和人性。让人们疲倦的身心得到抚慰。     

计算机应用给图书出版带来的问题及其对策研究

首先对图书出版中应用计算机带来的问题进行举例,然后分析了造成这种现象的原因,提出了解决对策是加深认识,增强编校人员责任心;加大宣传力度,强调汉语拼音字母的样式;采取有效的处理方法;加大查处力度,发现问题后按照规定严肃处理。