产业共性技术与行业协会的组织匹配——以温州为例     

周建华  郑慧 《温州职业技术学院学报》2011,11(3):1-5

产业共性技术属于准公共产品,“市场失灵”会导致其供给不足,政府的介入无可避免,但如果政府的作用仅限于补贴（或税收减免）,供给又将面,瞄“组织失灵”。为此,在产业共性技术面临市场和组织“双重失灵”原因的基础上,基于行业协会的比较优势,提出产业共性技术与行业协会组织的匹配问题及作用机理,并以温州的实践加以佐证。  相似文献   

Effect of support calcination temperature on the Ru-Ce-B/ZrO_2 catalysts for benzene selective hydrogenation to cyclohexene     

HAN Jianhua  LI Lichao 《商丘师范学院学报》2011,(12):62-66

The effect of support calcination temperature on the benzene selective hydrogenation performance of the Ru-Ce-B/ZrO2 catalysts was investigated.It was found that with increasing calcination temperature,the surface area decreased,on the contrary,the pore size and the amount of monoclinic phase increased.With increasing support calcination temperature,the activity of the catalyst roughly decreased and cyclohexene selectivity increased.The activity decreased due to the decrease of the surface areas.The increase of the cyclohexene selectivity was correlated not only with the decrease of the surface areas but also with the increase of monoclinic phases,rich in surface hydroxyl,and the enlarged pore size of zirconia.This suggests the monoclinic zirconia with a medium surface area,rather than a big one,and a mesoporous structure,even including some macropores,is an ideal support of the catalyst for benzene selective hydrogenation.  相似文献   

浅论教师在幼儿小提琴启蒙教育中的主导作用     

勾娟娟 《南昌教育学院学报》2011,(9):117-117

由于小提琴演奏教学的特殊性,因此,近些年来在教育领域所提倡的"学生本位"的教学观,在小提琴的启蒙阶段还需要把握尺度。优秀的小提琴教师可以根据幼儿的身心特点,在启蒙教育阶段因人而异,因材施教,科学、系统训练,避免幼儿走弯路,降低学习的难度,更容易帮助幼儿克服困难,从而顺利学习。从这个意义上讲,教师在幼儿小提琴的启蒙教育中起着决定性因素,因此教师的主导作用毋庸置疑。本文就相关问题及解决方法做一具体阐述。  相似文献   

会计学专业国际化应用型人才“双融合”教学体系构建的思考     

苟建华  傅昌銮 《浙江教育学院学报》2011,(3):37-42

国际化会计专业是浙江外国语学院新建专业,目标在于培养涉外、复合、应用型的国际化会计人才。国际化会计人才的培养需要教学体系的国际化,为实现教学体系的国际化,可以构建＂英语＋专业＂融合式的理论教学体系和＂会计理论＋实践能力＂融合式的实验教学体系。这种＂双融合＂式的教学体系可以有效地保障人才培养目标的实现。  相似文献   

科技创新推动下“智慧土地”发展的机遇与挑战   总被引：1，自引：0，他引：1       下载免费PDF全文

刘耀林  何建华 《中国科学院院刊》2020,35(5):645-652

我国土地资源禀赋和人口经济持续快速增长的压力,导致土地资源高强度、高风险利用等不可持续发展问题,迫切需要土地科技创新,转变土地资源治理模式,提升土地资源治理能力,以及发展以土地资源数字化、精细化、智能化为核心的“智慧土地”。文章探讨了智慧土地的基本概念和内涵,分析了“智慧土地”建设存在的问题与挑战,提出了亟待突破的关键技术,为我国顺利推进“智慧土地”建设提供参考和借鉴。  相似文献   

慕课教学应用于临床护理教学中的价值评价     

张顺琼  白艳  刘莉  何建华 《科教文汇》2020,(1):100-102

目的:评价慕课教学在临床护理教学中的应用价值。方法:选取128名参加培训的护理学员为研究对象,随机分为对照组(传统教学模式)和观察组(慕课教学模式),调查学员的理论考试测评成绩(单选题、多选题、填空题、简答题)及对教学的评价(认知领域、情感领域、精神运动领域)。结果:观察组学员的总成绩升高明显,且对教学的认知领域、情感领域、精神运动领域的同意率上升明显,与对照组相比较,差异显著(P<0.05)。结论:我国未来的教学模式将会是混合式的教育模式,不仅可以体现在线教学的优势,也强化了课堂的面对面互动,对知识的探索将进入一个全新的层面,而临床护理教学也会得到长足的发展。  相似文献   

Convergent genomic signatures of high-altitude adaptation among domestic mammals     

Dong-Dong Wu  Cui-Ping Yang  Ming-Shan Wang  Kun-Zhe Dong  Da-Wei Yan  Zi-Qian Hao  Song-Qing Fan  Shu-Zhou Chu  Qiu-Shuo Shen  Li-Ping Jiang  Yan Li  Lin Zeng  He-Qun Liu  Hai-Bing Xie  Yun-Fei Ma  Xiao-Yan Kong  Shu-Li Yang  Xin-Xing Dong  Ali Esmailizadeh  David M Irwin  Xiao Xiao  Ming Li  Yang Dong  Wen Wang  Peng Shi  Hai-Peng Li  Yue-Hui Ma  Xiao Gou  Yong-Bin Chen  Ya-Ping Zhang 《国家科学评论(英文版)》2020,7(6):952

Abundant and diverse domestic mammals living on the Tibetan Plateau provide useful materials for investigating adaptive evolution and genetic convergence. Here, we used 327 genomes from horses, sheep, goats, cattle, pigs and dogs living at both high and low altitudes, including 73 genomes generated for this study, to disentangle the genetic mechanisms underlying local adaptation of domestic mammals. Although molecular convergence is comparatively rare at the DNA sequence level, we found convergent signature of positive selection at the gene level, particularly the EPAS1 gene in these Tibetan domestic mammals. We also reported a potential function in response to hypoxia for the gene C10orf67, which underwent positive selection in three of the domestic mammals. Our data provide an insight into adaptive evolution of high-altitude domestic mammals, and should facilitate the search for additional novel genes involved in the hypoxia response pathway.  相似文献   

Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool     

Honglei Lin  Zhiping He  Wei Yang  Yangting Lin  Rui Xu  Chi Zhang  Meng-Hua Zhu  Rui Chang  Jinhai Zhang  Chunlai Li  Hongyu Lin  Yang Liu  Sheng Gou  Yong Wei  Sen Hu  Changbin Xue  Jianfeng Yang  Jie Zhong  Xiaohui Fu  Weixing Wan  Yongliao Zou 《国家科学评论(英文版)》2020,7(5):913

Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith''s composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43].  相似文献   

基于网络的教学管理实践与思考   总被引：1，自引：1，他引：0  

曲建华  荆斋荣 《高等理科教育》2006,(3):61-63,93

基于网络的教学管理具有涉及人员广泛、影响深刻、易于实践与检验的特点,因而可以做为建设数字化校园的突破口。本文以青岛大学教务在线的实践为例,探讨了高等学校实现在线教务管理的步骤、方法及应注意的问题,通过实践效果肯定了在线教务管理对教学管理工作的积极影响,指出了深化数字化校园建设中应进一步解决的问题。  相似文献   

“探究学习”法在教师现代教育技术培训中的应用研究     

陶祥亚  胡建华  王启东 《现代教育技术》2007,17(3):93-95

本文在分析了教师现代教育技术培训和“探究学习”各自特点的基础上,得出了“探究学爿”法非常适用于教师现代教育技术培训的结论,并结合淮海工学院教师现代教育技术培训工作的具体实践,分析了“探究学飞”法在实施过程中教师应起到的作用,文章最后通过对几年来培训数据的对比和分析,验证了上述结论,并阐述了培训中应注意的问题。  相似文献