小学英语课堂综合化评价创新

小学阶段的教育教学是一个人成长发展过程中非常重要的一个时期,是学生学习兴趣培养,终身学习习惯养成,人格塑造的关键阶段,所以在这一时期不断的帮助学生树立良好的学习自信,实现小学生的全面发展进步是非常重要的。而评价作为不断激励学生进步的重要方式,小学英语课程教学的重要组成部分,教师必须重视评价的科学性和综合性,以此来帮助小学生实现英语学校的全面进步,综合素质的有效发展。尤其是在当前素质教育发展以及新课程改革的背景下,传统的课堂评价已经无法满足小学生的发展需求,只有不断促进评价的综合化,敢于改变现状进行创新变革,才能实现课堂评价的进一步发展,激发小学生英语学习的潜力,因此,小学英语教师必须加以足够的重视。

高职思想政治理论课综合化考核评价方式研究——以浙江国际海运职业技术学院为例

综合化考核评价方式作为高职思想政治教育考核的有效方法,在新时期高职学生思想政治教育中发挥着重要作用。本文从调查研究高职院校思想政治理论课考核评价方式在实施过程中存在的问题出发,对高职思政课综合化考核评价方式进行了总体框架的构建。并以浙江国际海运职业技术学院为例,论述了思想政治理论课综合化考核评价方式在课程考核中的操作和应用,分析了这一方式的主要做法、成效及启示。

机械专业“学分制”管理模式下综合化课程评价方式

机械学科作为制造业的基础,在相关企业推行基于现代学徒制的人才培养模式更符合行业需求。现代学徒制要求企业全程参与育人过程,实行弹性的双主体学分制评价机制。为保证学分制评价的客观公正,采用结果与过程相结合、理论与实践相结合、学习工作能力与职业素养相结合及其他灵活多元的综合化课程评价,有助于培养具有良好品德和职业素养的专业技能型人才。教学实践表明:建立“学分制”管理模式下的综合化课程评价,有助于对现代学徒制培养效果进行更加客观公正的评价;找好学校、学生、企业之间的平衡点,真正做到学生所学与企业所需的统一,让学生获取岗位认同感,实现三方共赢。

浅谈构建新型学生评价机制

传统生物教学的学生评价现在成了新课改展开的绊脚石,因此,需要探索新型的学生评价机制,使新机制评价内容多元化,评价目标综合化,评价方式方法多样化。

Configuration optimization model of multi-energy distributed generation system

To integrate different renewable energy resources effectively in a microgrid, a configuration optimization model of a multi-energy distributed generation（DG） system and its auxiliary equipment is proposed. The model mainly consists of two parts, the determination of initial configuration schemes according to user preference and the selection of the optimal scheme. The comprehensive evaluation index（CEI）, which is acquired through the analytic hierarchy process（AHP） weight calculation method, is adopted as the evaluation criterion to rank the initial schemes. The optimal scheme is obtained according to the ranking results. The proposed model takes the diversity of different equipment parameters and investment cost into consideration and can give relatively suitable and economical suggestions for system configuration.Additionally, unlike Homer Pro, the proposed model considers the complementation of different renewable energy resources, and thus the rationality of the multi-energy DG system is improved compared with the single evaluation criterion method which only considers the total cost.

Fuzzy Synthetic Evaluation of Wetland Soil Quality Degradation:A Case Study on the Sanjiang Plain,Northeast China

Wetland soil quality degradation caused by large-scale agricultural reclamation on the Sanjiang Plain of Northeast China has been widely reported. A relative soil quality evaluation (RSQE) model and a projection pursuit evaluation (PPE) model based on real-coded accelerating genetic algorithm were introduced to evaluate quality variations in top layers of the main wetland soils on the Sanjiang Plain in 1999 and 2003, respectively. As soil quality degradation boundaries were vague, this study established two fuzzy synthetic evaluation (FSE) models based on the original data and criteria used in the RSQE and PPE models. The outputs of the two FSE models were obtained by choosing two fuzzy composite operators M(∧, ∨) and M(·, ⊕). Statistical analysis showed that the results of the FSE, RSQE, and PPE models were correlated. In particular, outputs of the FSE model using M(·, ⊕) were significantly correlated with those of the RSQE model with r = 0.989 at P < 0.01. Compared with RSQE and PPE models, the FSE model may be more objective in showing soil quality variations and was closer to the natural situation, showing the feasibility and applicability of the FSE model in evaluating soil quality degradation. However, the choice of composite operator was of critical importance. The study of wetland soil quality degradation on the Sanjiang Plain was of scientific and practical significance for protection and management of soils and for sustainable development of agriculture in this area in the future.

Optimization Design and Comprehensive Evaluation of Screw Contact of Space Battery Based on ANSYS

In order to improve the safety of the battery of satellite side mounting,and prevent the screw from producing excess due to frequent assembly and disassembly,the YS-20 material replacement and structure optimization design of the screw body are carried out under the premise of not changing the original tooling.The double⁃shear test of YS-20 bar is carried out,and the ANSYS optimization design module is used to design 7×7×6,a total of 294,calculation cases of D1,D2,T,the three important dimension parameters of screw structure.The actual bearing state of screw composite structure is accurately simulated by using asymmetric contact model.Three comprehensive evaluations are established,and the calculation examples satisfying the conditions are evaluated comprehensively.The final results are T=12.2 mm,D1=16 mm,D2=2 mm.The stress verification and contact analysis are carried out for the final scheme and the bearing state and contact state optimized screw structure are obtained.

Optimization model of unascertained measurement for underground mining method selection and its application

An optimization model of underground mining method selection was established on the basis of the unascertained measurement theory.Considering the geologic conditions,technology,economy and safety production,ten main factors influencing the selection of mining method were taken into account,and the comprehensive evaluation index system of mining method selection was constructed.The unascertained evaluation indices corresponding to the selected factors for the actual situation were solved both qualitatively and quantitatively.New measurement standards were constructed.Then,the unascertained measurement function of each evaluation index was established.The index weights of the factors were calculated by entropy theory,and credible degree recognition criteria were established according to the unascertained measurement theory.The results of mining method evaluation were obtained using the credible degree criteria,thus the best underground mining method was determined.Furthermore,this model was employed for the comprehensive evaluation and selection of the chosen standard mining methods in Xinli Gold Mine in Sanshandao of China.The results show that the relative superiority degrees of mining methods can be calculated using the unascertained measurement optimization model,so the optimal method can be easily determined.Meanwhile,the proposed method can take into account large amount of uncertain information in mining method selection,which can provide an effective way for selecting the optimal underground mining method.

Comprehensive Evaluation and Prediction of Enhancement of Boiling Heat Transfer with Additives

A model of evaluation and prediction of enhancement of boiling heat transfer with additives has been proposed according to fuzzy fundamentals. Correlative appraisement of boiling heat transfer augmentation was done with the model based on 39 additives which were tested by the authors and other researchers. The results show that the evaluation of 35 additives is consistent with experiments, which means that the accuracy of the model is 89.7 percent. In addition, the prediction of the ability of boiling heat transfer enhancement with sodium oleate, polyethylene glycol and Tween-40 is also in good agreement with correspondent experiments.

On the Laws and Causes of Socio-economic Territorial Differentiation in Minority Areas in China

On the basis of applying quantitative and qualitative approaches as well as GIS technology, this paper established an index system to make a comprehensive evaluation on socio-economic development of minority areas in China. The result showed that socio-economic development in minority area presents a series of characteristics that the north is high and the south is low, center-margin pattern is obvious and the areas with middle and lower development indices are distributed centrally and continuously. However, the causes of the socio-economic characteristics mainly include natural conditions, economic development basic, population cultural quality, re-gional combination and development conditions of mineral and energy resources, informal institutional factors and distribution of major traffic lines..

Optimization Analysis on Comprehensive Evaluation Index of Wetland Parks

Wetland park is an important mode of wetland protection, meanwhile, construction of comprehensive index system has become the hotspot and keystone of the researches on Wetland Parks. Basing on different development stages, this paper firstly divided the Wetland Parks into three categories, including the start-up stage, the development stage and the refinement stage. And then screened and identified the direction and keypoints of comprehensive evaluation for wetland parks in different development stages using expert scoring, questionnaire and analytic hierarchy process(AHP).

Comprehensive Assessment of Sustainable Tourism-oriented Revitalization in a Historic District: A Case Study of Qianmen Area, Beijing, China

Tourism-oriented revitalization of historic districts has been identified as a form of sustainability which is believed to contribute to both conservation and development.Comprehensive assessments of the effects of such tourism-oriented revitalizations in historic districts are thus a great challenge,and are needed to support sustainable development and management efforts.In this study criteria and indicators were identified by using the AHP method with experts scoring four aspects on two levels.We assess a case in China using this system and outputs indicated infrastructure and environment performed best,while the score for residents’living condition and participation was the lowest.Finally,we offer some suggestions to improve the relatively poor status in order to assist historic districts in achieving sustained revitalization.

Evaluation on Contribution of Steel Products to Environmental Improvement from Life Cycle Assessment Perspectives

High functionality given to steel products results in incremental environment loads at the steelmaking stage.However,at the stage of utilization,high-functional steel products prove more environment friendly than their conventional counterparts in many cases.Therefore,evaluation on contribution of steel products to environmental improvement requires an integrated approach that considers the product over its entire life cycle - life cycle assessment(LCA).This paper discusses the relationship between the improvement of steel products performance and environmental impact from the entire life cycle perspectives.The LCA method to calculate and assess contribution of high-functional steel products during the life cycle to environmental improvement is explained.Two case studies of Baoshan Iron & Steel Co.,Ltd.(Baosteel for short) are given to show that LCA is a scientific and systematic method for eco-materials evaluation or eco-design:in a power transformer,using silicon steel B30P110 to replace B30G130 can reduce carbon dioxide emissions in the region of 15.1% over the life cycle of the power transformer;tinplate steel of Baosteel for two-piece steel cans experienced six times thickness reduction from 0.280 to 0.225 mm,which results in 14.5% emission reduction over the life cycle of two-piece steel cans.It is a systematic and scientific method for evaluating on products environmental performance from life cycle perspective.