共查询到20条相似文献，搜索用时 62 毫秒
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数据对地理信息系统（GIS）至关重要。GIS的空间数据可以用最新的数据采集方式诸如：GPS、卫星影像等来获得。大量以纸类为媒介的海图、测量原图、地形图，通过数字化能很容易地转化成GIS的空间数据。就GIS建库过程中数据质量的问题进行了研究. 相似文献
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精准双向,是指运用真实的数据信息,对教学主体的双方做精准的测量和定位,对教师的教学过程和学生的学习过程做精确的认识.本文以高中物理试卷讲评课型为例,阐述通过对学生和教师的双向数据的有效挖掘,在试卷讲评的过程中要从多维度,多视角,对各类数据进行精准的整理、分析、总结,实施精准的讲评教学,提升讲评课效率. 相似文献
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利用对象关系数据库技术解决了园林GIS数据访问的不及时性。对园林GIS数据的跟踪,有效地维护了园林GIS数据的变更,并结合工作流技术和对数据库实时更新的技术提出了一种动态管理园林GIS数据的机制。园林GIS数据的及时更新,提高了政府的管理水平和政府的公众形象。 相似文献
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大数据为高校思想政治教育精准化创造了机遇,便于教育者精准把握学生多样化需求、精准供给教育内容、精准开展教育评价。然而高校在运用大数据提升思想政治教育精准化实效的实践中依然面临数据素养薄弱、信息注意力碎片化、数据共享不畅等难题。唯有精准定位,提升教育者数据素养、树立精准育人理念、精准认知教育对象、精准输送教育内容、精准预测思想动态、协同推进精准施策,才能着力提升育人成效,实现立德树人的价值旨归。 相似文献
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王庆辉 《陕西广播电视大学学报》2012,14(2):35-37
在一般的GIS应用中,GPS数据可以说是不可或缺的,在消防GIS系统中,消防栓的地理数据必须要采集并录入到系统中;在电力GIS系统中,电线杆的GPS数据也需要采集录入到系统中。数据是GIS的重要内容,也是GIS系统的灵魂和生命。本文主要讨论内容就是地理信息系统数据采集的解决方案。 相似文献
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刘莎 《兰州石化职业技术学院学报》2020,20(1):38-41
高校学生精准资助是我国精准扶贫政策在高校领域的有效延伸,它能够提升高校扶贫工作的针对性、目的性和精准化。当前,在“互联网+”背景下,借助大数据技术推进贫困生精准资助工作成为高校学生精准资助的崭新模式。通过对大数据的科学内涵、基本价值、大数据助推高校精准资助工作的必要性以及当前大数据视域下高校学生精准资助工作存在的问题进行客观准确分析,提出了大数据视域下高校学生精准资助模式建构的有效路径。 相似文献
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大数据技术快速发展,我国教育信息化步伐加快,教育由规模化转向精准化,给精准思政模式的构建带来了机遇与挑战。精准画像,助力教育者精准识别学生需求;精准把脉,紧跟时代发展主题;精准评估,强化思政效果反馈;精准决策,增强思政的可视性。然而,数据多元导致教育主体迷失自我,数据过载导致教育主体异化,数据折旧导致思政数据有效性损耗,数据预测限制个体个性发展。为此,我们要加强精准协同育人,强化教育主体互动性,改进教育方式,提升教育行为评估水平。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献