基于结构方程模型的孵化器综合绩效评价     

邱桂贤 《深圳职业技术学院学报》2011,10(3):54-58

在已有研究的基础上,基于数据获取的便利性,构建一套科技企业孵化器综合绩效的评价指标体系.探索了硬件环境、软件环境、服务能力、发展潜力和绩效产出5个指标之间的关系,根据我国部分国家级企业孵化器的统计数据,利用AMOS软件建立结构方程模型并对模型进行计算和求解.根据得到的因子载荷和路径系数确定各个评价指标的权重.  相似文献   

论巴赫《二部创意曲》的教学与演奏     

张睿 《海南师范大学学报(社会科学版)》2011,24(1):133-135

巴赫的《创意曲集》是学习钢琴复调技术最好的中级教材,在教学中以巴赫时代的演奏习惯去认识并掌握好巴赫的音乐风格,是演奏巴赫作品时应考虑的首要问题。在演奏巴赫作品时要注意下面几个因素：横向的线条,乐旬的安排;竖向的和声及对位法;对装饰音、节奏的处理;速度和力度的把握,等等。  相似文献   

现代标志设计中的意象表现特征     

王永虎  杨广红 《巢湖学院学报》2011,(4):52-55

本文主要以现代标志设计中的意象表现特征为中心对象,并就其对现代标志设计中的意象艺术、意象关系以及意象表现特征等内容进行分析和探讨。现代标志设计表现过程中的虚拟性、联想性、情感性等特征对当前标志创意具有深刻影响,把握这种特征,有助于在现代标志设计中,创造出超越传统物化表相的全新的视觉形态,传达现代标志的意象之美。  相似文献   

The predictive role of early childhood dysregulation profile on the parallel growth trajectories of reading and math performance across elementary and middle school     

《Contemporary educational psychology》2023

This study examined the heterogeneity in the co-developmental trajectories of reading and math performance (i.e., parallel changes in the initial scores and growth patterns) and identified the number, size and shape of the co-developmental trajectory across elementary and middle schools. In addition, this investigation focused on how an early childhood dysregulation profile (DP; indexed by a high co-occurrence of emotional, behavior, and attention problems) was associated with distinct co-developmental trajectories of reading and math performance. Specifically, we examined whether early childhood DP level can predict (a) membership assignment into each distinct co-development group and (b) variability in initial scores and changes in growth with each distinct co-development group. Participants were 784 academically at-risk students (47 % girls) predominantly from low socioeconomic status families who were recruited in first grade (Mean age = 6.57 years) and followed annually through the final year of middle school (ninth grade). Results revealed two distinct co-developmental trajectories of reading and math performance, including (a) a lower initial reading (higher increasing) and higher initial math (lower increasing) class (85.3 %) and (b) a lower initial math (higher increasing) and higher initial reading (lower increasing) class (14.7 %). Our results provided evidence for the compensatory pattern of co-developmental trajectories, indicating initial lower skills grow at a faster rate than the initial high. Further, early childhood DP was not associated with the membership assignment for these two distinct classes, which means that regardless of children’s early DP level, they have equal chances to be assigned to each of the classes. However, children with higher parent and teacher-reported DP in first grade demonstrated lower initial scores and a slower improvement rate in both classes after controlling for kindergarten literacy skills, gender, ethnicity, intelligence, socioeconomic status, and grade retention. Our study findings demonstrated (a) substantial heterogeneity in the co-developmental trajectories of reading and math performance across elementary and middle school ages; and (b) the importance of promoting self-regulation beginning in early childhood, especially for academically at-risk children in families facing economic challenges.  相似文献   

一流大学建设背景下教师绩效评价的思考     

胡赤弟  王依琳 《宁波大学学报(教育科学版)》2020,(1):67-72

“双一流”建设的一项重要任务就是要加快一流教师队伍建设。在梳理了高校教师绩效评价制度发展历程的基础上,发现当前大多高校教师绩效评价存在评价导向不统一、评价标准不协调、评价主体行政化、反馈机制不畅通等问题。因此,高校教师绩效评价要体现战略导向,树立以人为本的理念,扩大评价的参与度和参与面,创新评价的方式方法,打造高素质的教师队伍,为一流大学建设目标的实现奠定夯实的人力资本基础。  相似文献   

团体健美操的创编与训练     

陆善芬  任淑慧 《连云港师范高等专科学校学报》2001,(4):75-76

随着团体健美操在各种场合的表演，其创编与训练引起了人们的关注。因此，本文就团体健美操的创编与训练作一探析。  相似文献   

Adaptive Observer-Based Fault Estimate for Nonlinear Systems     

宗群  刘文静刘利 《天津大学学报(英文版)》2006,12(6):425-428

In recent years, fault detection and isolation(FDI) technologies have been developing rapidly.Among them the observer-based fault detection andisolation technology for nonlinear systems are the mostattractive research areas, and lots of promising resultscan be found in survey papers[1]. Generally, thereare several kinds of strategies for observer-based FDIin nonlinearsystems such as unknown inputs observer-based FDI[2], and adaptive observer-based FDI[3]. Insome cases, fault accommodation…  相似文献   

Study of CNG/diesel dual fuel engine's emissions by means of RBF neural network     

刘震涛  费少梅 《浙江大学学报(A卷英文版)》2004,5(8):960-965

Great efforts have been made to resolve the serious environmental pollution and inevitable declining of energy resources. A review of Chinese fuel reserves and engine technology showed that compressed natural gas (CNG)/diesel dual fuel engine (DFE) was one of the best solutions for the above problems at present. In order to study and improve the emission performance of CNG/diesel DFE, an emission model for DFE based on radial basis function (RBF) neural network was developed which was a black-box input-output training data model not require priori knowledge. The RBF centers and the connected weights could be selected automatically according to the distribution of the training data in input-output space and the given approximating error. Studies showed that the predicted results accorded well with the experimental data over a large range of operating conditions from low load to high load. The developed emissions model based on the RBF neural network could be used to successfully predict and optimize the emissions performance of DFE. And the effect of the DFE main performance parameters, such as rotation speed, load, pilot quantity and injection timing, were also predicted by means of this model. In resume, an emission prediction model for CNG/diesel DFE based on RBF neural network was built for analyzing the effect of the main performance parameters on the CO, NOx emissions of DFE. The predicted results agreed quite well with the traditional emissions model, which indicated that the model had certain application value, although it still has some limitations, because of its high dependence on the quantity of the experimental sample data.  相似文献   

图书馆知识管理的内容和实施策略   总被引：2，自引：0，他引：2  

安月玲 《河北职业技术学院学报》2004,4(4):69-70

知识管理是图书馆面临的一个新课题。阐述图书馆知识管理的内容，并提出图书馆知识管理的实施策略。  相似文献   

企业绩效评价指标体系中存在的问题及改进建议   总被引：5，自引：0，他引：5  

彭晓洁 《商丘职业技术学院学报》2006,5(4):24-25

企业绩效评价就是按照企业目标设计相应的评价指标体系,对企业一定经营期间的经营业绩做出客观、公正和准确的综合判断。通过分析我国现行企业绩效评价指标体系中存在的问题,提出了相应的改进建议。  相似文献