毕业设计教学改革与实践的探索

随着教学改革的深入,提出了除学生不可选择性因素之外,要充分发挥指导教师的主导作用,首先选准选好毕业设计题目,加强计算机在毕业设计中的运用.走设计和实践相结合之路,在几个方面做好、做细毕业设计的改革工作.     

医教结合：实践、争议与问题

目前我国特殊教育学校学生残障程度趋重,残障类型、教康需求日趋多样化。我国在不断的探索中形成符合自身特点的教育和康复的整合模式———医教结合,并在医教结合的实践中取得一定成果。但目前国内不仅对医教结合内涵、过程等方面未达成一致观点,学者们在其他一些问题上也存在争议。医教结合推进过程中,适用对象、学校教师、理论本身、政策制定方面存在的问题,仍需各方共同努力去解决,研究完善医教结合的理论与政策,促进特殊教育医教结合的发展。     

浅谈今后我国高等教育发展的方向和对策

改革开放以后,中国高等教育经历了较大的发展,但与西方发达国家的高等教育相比,还有较大差距.因此,我们可借鉴美国高等教育发展的成功经验,加快改革高等教育体制,发展规模适度、形式多样、层次多样的中国高校,提高高校为经济和社会服务的水平,使我国高等教育体制更具活力和竞争力.     

Combining forecasts of electricity consumption in China with time-varying weights updated by a high-order Markov chain model

Electricity consumption forecasting has been always playing a vital role in power system management and planning. Inaccurate prediction may cause wastes of scarce energy resource or electricity shortages. However, forecasting electricity consumption has proven to be a challenging task due to various unstable factors. Especially, China is undergoing a period of economic transition, which highlights this difficulty. This paper proposes a time-varying-weight combining method, i.e. High-order Markov chain based Time-varying Weighted Average (HM-TWA) method to predict the monthly electricity consumption in China. HM-TWA first calculates the in-sample time-varying combining weights by quadratic programming for the individual forecasts. Then it predicts the out-of-sample time-varying adaptive weights through extrapolating these in-sample weights using a high-order Markov chain model. Finally, the combined forecasts can be obtained. In addition, to ensure that the sample data have the same properties as the required forecasts, a reasonable multi-step-ahead forecasting scheme is designed for HM-TWA. The out-of-sample forecasting performance evaluation shows that HM-TWA outperforms the component models and traditional combining methods, and its effectiveness is further verified by comparing it with some other existing models.     

Evaluating Probabilistic Forecasts with Bayesian Signal Detection Models

We propose the use of signal detection theory (SDT) to evaluate the performance of both probabilistic forecasting systems and individual forecasters. The main advantage of SDT is that it provides a principled way to distinguish the response from system diagnosticity, which is defined as the ability to distinguish events that occur from those that do not. There are two challenges in applying SDT to probabilistic forecasts. First, the SDT model must handle judged probabilities rather than the conventional binary decisions. Second, the model must be able to operate in the presence of sparse data generated within the context of human forecasting systems. Our approach is to specify a model of how individual forecasts are generated from underlying representations and use Bayesian inference to estimate the underlying latent parameters. Given our estimate of the underlying representations, features of the classic SDT model, such as the receiver operating characteristic (ROC) curve and the area under the ROC curve (AUC), follow immediately. We show how our approach allows ROC curves and AUCs to be applied to individuals within a group of forecasters, estimated as a function of time, and extended to measure differences in forecastability across different domains. Among the advantages of this method is that it depends only on the ordinal properties of the probabilistic forecasts. We conclude with a brief discussion of how this approach might facilitate decision making.     

略论宋元话本小说词文相生创作模式的成因及功能

宋元话本小说中插入大量词篇,这种词文结合的创作模式具有鲜明的时代特色,契合了当时大众的审美心理需求。这一独特的审美特征形成的背后不仅有着深层的时代背景原因,其具有的独特功能性,还对丰富话本小说的创作起着重要作用。     

工学结合的《水泥粉磨设备操作》课程标准开发

通过深入用人单位调研,明确了职业岗位的典型工作任务和职业岗位对人才的能力素质要求,以典型工作任务为载体将课程划分成多个相互联系的学习情境,将专业能力、方法能力和社会能力的培养贯穿于各个学习情境的教学中。     

Accent on Teaching Materials

A linear combination test for combining several tests of the correlation coefficient in the bivariate normal distribution is proposed. The linear combination test is compared with the well-known Fisher method of combining tests. It is shown by a Monte Carlo study that the linear combination test has a larger power.     

糯高粱籽粒淀粉含量及组分的配合力分析

用 1 8A等 4个糯高粱不育系与 3 5R等 5个糯高粱恢复系按Griffing方法Ⅱ组配成 2 0份组合 ,估算了糯高粱籽粒总淀粉含量、支链淀粉含量和直链淀粉含量的配合力。结果表明 ,同一亲本不同品质性状的配合力不同 ,同一品质性状不同亲本的配合力也不同。在酿酒品质性状的杂种优势利用上 ,选育优质酿酒高粱组合应选择总淀粉含量及支链淀粉含量一般配合力高的亲本     

宗白华的小诗与禅宗文化的关系

禅宗不仅深刻地影响了宗白华的人生观,而且对他的诗学观产生了重大影响。引禅入诗,是宗白华小诗的一个突出特点。在禅宗的思维方式和审美趣味的影响下,宗白华的小诗静谧幽深,超旷空灵,充满了微妙至深的禅意,在20世纪20年代的小诗运动中独树一帜;同时,诗禅结合,也使他为中国新诗的现代化做出了自己独特的贡献。