浅谈企业信息化建设的挑战和对策     

黄静仪 《科技广场》2006,(6):102-103

本文论述了企业信息化的涵义与特点,阐述了在当今信息化时代中企业所面临的机遇和挑战,提出如何利用信息化实现企业自身长远发展的对策。  相似文献   

Design and development of VR learning environments for children with ASD     

Yiyu Cai  Ruby Chiew  Zin Tun Nay  Chandrasekaran Indhumathi  Lihui Huang 《Interactive Learning Environments》2017,25(8):1098-1109

Basic social interaction and executing certain tasks can be difficult for children with autism spectrum disorder (ASD). The symptoms of such behaviour include inappropriate gestures, body language and facial expressions, lack of interest in certain tasks, cognitive disability in coordination of limbs, and a difficulty in comprehending tasks’ requirements. This paper will discuss our efforts to develop virtual learning environments for children with ASD to improve their gestures and their interests in comprehending tasks’ requirements. Virtual environments are ideal for imparting skills necessary for independence before encouraging children with ASD to try these out in the real world and gain real-life experience. A high-end solution and a simplified solution will be presented together with a discussion on their comparison study.  相似文献   

Pressurizing the STEM Pipeline: an Expectancy-Value Theory Analysis of Youths’ STEM Attitudes     

Christopher Ball  Kuo-Ting Huang  Shelia R. Cotten  R.V. Rikard 《Journal of Science Education and Technology》2017,26(4):372-382

Over the past decade, there has been a strong national push to increase minority students’ positive attitudes towards STEM-related careers. However, despite this focus, minority students have remained underrepresented in these fields. Some researchers have directed their attention towards improving the STEM pipeline which carries students through our educational system and into STEM careers. Previous research has shown that expectancy-value theory (EVT) is useful for examining the short-term as well as long-term academic motivations and intentions of elementary age minority students. These findings provide insights into ways we may be able to potentially “patch” particular STEM pipeline leaks. In the current study, we advance this research by using EVT as a framework to examine the STEM attitudes of young students directly. We hypothesize that students’ academic-related expectancies for success and subjective task values will be associated with an increase in STEM attitudes. Data for this study was gathered over the course of a large-scale computing intervention which sought to increase students’ STEM interest. This computing intervention took place in an urban elementary school district located within the southeastern USA. Results from this study indicate that both intrinsic values and utility values predict students’ STEM attitudes but they influence attitudes related to the various dimensions of STEM differently. These findings demonstrate that EVT provides a useful framework, which can be integrated into future computing interventions, to help encourage positive STEM attitudes in young children, thus increasing the internal pressure (or flow) within the STEM pipeline.  相似文献   

Curriculum Interventions for Area Measurement Instruction to Enhance Children’s Conceptual Understanding     

Hsin-Mei E. Huang 《International Journal of Science and Mathematics Education》2017,15(7):1323-1341

This study examined the effectiveness of 3 curriculum interventions focused on strengthening children’s ability to solve area measurement problems and explored the instructional perspectives of the instructor who implemented the interventions. The interventions involved various degrees of emphasis on area measurement and knowledge of 2-dimensional geometry. Participants were 131 fourth graders, recruited from a city in northern Taiwan, and 1 instructor. The results confirmed the effectiveness of an enriched curriculum integrating knowledge of 2-dimensional geometry in enhancing children’s conceptual understanding of area measurement. The group that received the enriched curriculum outperformed the other groups that received the curricula stressing only 2-dimensional geometry or numerical calculations for area measurement in solving the area problems requiring mathematical judgments and explanations. The curriculum also facilitated children’s reasoning in distinguishing between the perimeter and area of a rectangle, which required higher-order mathematical thinking. Interview data revealed that approximately all children from the 3 intervention groups could identify the mathematical subject-matter components highlighted in the curricula. Interviewees tended to consider the use of formulae to solve area measurement problems to be important, despite some differences in learning gains among the 3 groups. In interviews, the participating instructor revealed a change of perspective regarding the importance of offering students opportunities for manipulation and geometric operations when teaching area measurement, prompted by curriculum enactment.  相似文献   

中山市职业教育的几种合作办学模式     

黄庆财 《教育导刊》2006,(10):57-59

中山市各中等职业学校主动加强与企业、行业、学校的联系,构建了多元主体合作、互利双赢的职教合作办学模式,走出了一条具有中山市职教特色的职业教育之路。  相似文献   

大学英语写作教学中的语篇衔接性词块训练     

黄学静 《滁州学院学报》2010,12(4)

"语篇衔接词块"这一概念取自词块的研究和语篇衔接研究的结合点,指的是篇章内标记不同句际关系的衔接词。大学非英语专业本科生的作文中普遍缺少表示衔接关系的词块,致使文章结构松散,逻辑不清。因此,在教学中,教师应当有目的有系统地将语篇衔接性词块训练融入教学中,不断提高学生的英语作文写作水平。  相似文献   

Effect of high glucose levels on the calcification of vascular smooth muscle cells by inducing osteoblastic differentiation and intracellular calcium deposition via BMP-2/Cbfα-1 pathway     

Liu F  Zhong H  Liang JY  Fu P  Luo ZJ  Zhou L  Gou R  Huang J 《Journal of Zhejiang University. Science. B》2010,11(12):905-911

In this paper,we investigate the effect and the possible mechanism of high glucose levels on the calcification of human aortic smooth muscle cells (HASMCs).HASMCs were divided into four groups: normal glucose group (NG),osmolality control group (OC),high glucose group (HG,HASMCs culture medium containing 30 mmol/L glucose),and high glucose plus recombinant human Noggin protein (bone morphogenetic protein-2 (BMP-2) antagonist) group (HN).The mRNA levels and the protein expressions of BMP-2 and core binding factor alpha-1 (Cbfα-1) were measured by real-time quantitative polymerase chain reaction (PCR) and Western blot.After induced by 10 mmol/L β-glycerol phosphoric acid,cells were harvested for assessments of alkaline phosphatase (ALP) activities at Days 1,2,and 3,and intracellular calcium contents at Days 7 and 14,respectively.High glucose levels increased the mRNA levels and the protein expressions of BMP-2 and Cbfα-1 (P0.05).The expression of Cbfα-1 was partially blocked by Noggin protein (P0.05),while BMP-2 was not (P0.05).After being induced by β-glycerol phosphoric acid,high glucose levels increased the ALP activity [(48.63±1.03) vs.(41.42±2.28) U/mg protein,Day 3;P0.05] and the intracellular calcium content [(2.76±0.09) vs.(1.75±0.07) μmol/mg protein,Day 14;P0.05] in a time-dependent manner when compared with the NG group,while the ALP activity could not be blocked by Noggin protein [(48.63±1.03) vs.(47.37±0.97) U/mg protein,Day 3;P0.05].These results show that high glucose levels can evoke the calcification of HASMCs by inducing osteoblastic trans-differentiation and intracellular calcium deposition via the BMP-2/Cbfα-1 pathway,which can be partially blocked by Noggin protein.  相似文献   

河道一维水沙运动的数值模拟     

黄平 《中山大学学报论丛》1993,(2)

研究河道一维水沙数学模型,提出了一个简单易行的计算方法.经实例验证,该模型具有计算程序容易实现,计算结果较合理的优点.且利用该模型,还可研究短期或长期的河流冲淤变化问题。  相似文献   

试论领导者素质     

黄训同 《湖南广播电视大学学报》2002,(2):67-67

领导的素质是实施领导的基础，在新的历史时期领导必须具备良好的政治思想素质、科学化素质、智能素质、心理与身体素质才能实施有效的领导，促进全民族的素质提高，使社会主义事业取得更大的胜利。  相似文献   

Simulation study on radiative imaging of combustion flame in furnace     

LIU Dong WANG Fei HUANG Qun-xing YAN Jian-hua CHI Yong CEN Ke-fa 《浙江大学学报(A卷英文版)》2007,8(11):1853-1857

Radiative imaging of combustion flame in furnace of power plant plays an increasingly important role in combustion diagnosis. This paper presents a new method for calculating the radiative imaging of three-dimensional (3D) combustion flame based on Monte Carlo method and optical lens imaging. Numerical simulation case was used in this study. Radiative images were calculated and images obtained can not only present the energy distribution on the charge-coupled device (CCD) camera target plane but also reflect the energy distribution condition in the simulation furnace. Finally the relationships between volume ele- ments and energy shares were also discussed.  相似文献