共查询到19条相似文献,搜索用时 46 毫秒
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现代社会节奏越来越快,都市人压力也越来越大。不经意间,一张泛黄的相片,一曲怀旧的老歌,便能勾起我们对童年美好的回忆。在每个人的一生中,都会有太多美好的回忆。而回忆的主角多半是我们的童年,因为它的纯真,也因为它的无暇。而最能牵动我的情愫的,则是小时候的那些老玩具。 相似文献
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6月16日,“神州九号”飞船携带三名中国宇航员顺利升空,并与“天宫一号”成功对接,为全国人民上演了一场航天饕餮盛宴,展示出中国强大的航空航天能力。 相似文献
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零散区块普遍存在储量规模小,远离已建注水系统,采用传统注水工艺模式,地面工程难以配套。近年来,针对零散区块注水开发,我们一般选用“注入水+注水罐(旋流除砂器)+撬装式注水泵”的注水模式,在塔7、马38等零散区块取得了较好的应用效果。但对注入水水质要求较高的低孔、低渗-特低渗致密油藏,注水开发态势不明朗。为保证注入水质,我们应用模块化移动式注水工艺,即在原有的注水模式上增加水处理模块,现场取得了较好的应用效果。 相似文献
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过年了,每当看到家家户户门前贴着大红的春联,我就不禁想起童年那难忘的一件事……大概十二、三岁那年的大年初二,我和邻居的一位伙伴,穿着当时自己最新最靓的衣服,到镇上去放鞭炮,得意忘形之时,惹了麻烦事。有一串叫“大大发”电光炮(爆竹)不知怎么就飞到了一个小女孩的衣服上 相似文献
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正值中国工程院院士开会之际,惊悉钱老逝世,巨星陨落,擎天柱折损,悲恸沉痛难以言表,真所谓天地同悲,日月同哀。 相似文献
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“长征”二号丙(CZ-2C)火箭是“长征”火箭家族中的基本型火箭,CZ-2C系列火箭分为两级状态和三级状态,直径3.35米,全长40ˉ43米,一、二级使用常 相似文献
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在测量及测试应用系统中,为使现场采集的数据在突发性的掉电过程中不被丢失,且能长时间的保持,可采用32M位闪存芯片KM29N32000TS作为存储器。本文以AT89S51单片机为例介绍它在单片机系统中的硬件连接和软件编程方法。 相似文献
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本文以不同日龄的幼年大鼠为实验对象,观察了牛磺酸对幼年鼠及成年后大鼠学习记忆能力的影响。结果表明:牛磺酸对学习记忆能力有促进作用;幼年期补充牛磺酸后对成年期的学习记忆能力也会有作用,这种作用往往大于成年期后补充牛磺酸所带来的作用;幼年期补充牛磺酸的最佳时期为5~10日龄。 相似文献
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Wafa Hammedi Allard C. R. van Riel Zuzana Sasovova 《Journal of Product Innovation Management》2013,30(2):316-330
In screening decisions, senior managers from various disciplines need to collaborate to evaluate innovation project proposals and decide about the allocation of scarce resources to selected projects. Screening decisions are complex and made under high levels of uncertainty, and are considered to be one of senior management's most challenging tasks. In the present field study, screening decision making is investigated from the perspective of a Transactive Memory System (TMS). TMS theory explains how cross‐disciplinary groups of people in interdependent relationships gain, store, combine, and utilize their knowledge in solving complex problems. According to this theory, a TMS emerges to the extent that team members manage to synchronize three core socio‐cognitive processes—specialization, building credibility, and coordination—to achieve team objectives. A theoretical model summarizing antecedents and consequences of the emergence of a TMS in a screening context is proposed and investigated using structural equation modeling. Data from 136 screening committees were used. Results show that the degree to which a committee acts as a TMS is positively related to decision‐making effectiveness as well as efficiency in a screening context. Transformational leadership and an open organizational climate are shown to act as antecedents of TMS emergence. Theoretical and managerial implications of these findings are discussed. 相似文献
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Dylan J. Portelance Amanda L. Strawhacker Marina Umaschi Bers 《International Journal of Technology and Design Education》2016,26(4):489-504
This paper seeks to contribute to the growing literature on children and computer programming by focusing on a programming language for children in Kindergarten through second grade. Sixty-two students were exposed to a 6-week curriculum using ScartchJr. They learned foundational programming concepts and applied those concepts to create personally meaningful projects using the ScratchJr programming app. This paper addresses the following research question: Which ScratchJr programming blocks do young children choose to use in their own projects after they have learned them all through a tailored programming curriculum? Data was collected in the form of the students’ combined 977 projects, and analyzed for patterns and differences across grades. This paper summarizes findings and suggests potential directions for future research. Implications for the use of ScratchJr as an introductory programming language for young children are also discussed. 相似文献