加拿大硕士文凭证书《永久可查康卡迪亚大学文凭证书成绩单》

2017

摘要 结果补语是汉语表达中最常用的句法之一，也是汉语教学的重点和难点。以结果 补语“完”、“成”、“好”为例，这三个词在日常生活中常用词语。它们在语义上存在着相同点和不同点，使得学生在使用上常出现偏误。本文对丹戎布拉国立大学2013届学生使用结果补语“完”、“成”、“好”的情况进行了调查，分析学生使用这三个结果补语时所出现的偏误，总结出丹戎布拉国立大学2013届学生使用“完”、“成”、“好”的偏误率分别为：40.28%，41.40% 和27.87%，另外也总结出常见的偏误类型有错序偏误和误代偏误，并探求出现这些偏误的原因是母语负迁移和目的语负迁移，进而对这些问题提出几点教学建议。 关键词：完 成 好 偏误分析 AbstractResults complement is one of the most commonly used syntax in Chinese expression, and it is also the focus and difficulty of Chinese teaching. The results of the words "wan", "cheng", "hao" as an example, these three words in everyday life commonly used words.They have similarities and differences in semantics, making students often have errors when use them.This paper investigates "wan", "cheng" and "hao" using for the 2013 students of Tanjungpura National University, and analyzesthree results of the errors . The bias rates of "wan", "cheng" and "hao" in 2013 National University ...

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北京工业大学学报, 2017

为有效地获取滚珠丝杠副精度寿命特征,利用滚珠丝杠副磨损特征建立加速退化模型,并且根据设计的试验装置和试验过程的摩擦力矩值变化情况,采用参数估计方法进行退化数据的统计分析,获得不同应力水平下的滚珠丝杠副加速退化参数模型.同时,根据不同应力条件下实测的滚珠丝杠副摩擦力矩退化数据,计算出滚珠丝杠副定位反向变动量,为滚珠丝杠副的定位精度退化提供一种新的评价方法.建立的滚珠丝杠副加速退化模型针对其磨损进程极为缓慢的特性,利用该退化方法能较准确地推算出滚珠丝杠副精度寿命,能节约滚珠丝杠副试验费用、试验时间和指导滚珠丝杠副的设计.

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SCIENTIA SINICA Terrae, 2010

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2015

Conference Theme: Chinese Characters Education and Research随着汉语的国际化趋势明显，汉字教学方法研究越来越受到重视。掌握一个汉字，要辨认其形、听读其音、理解其义。新加坡华族学生拥有独特的双语背景，学好汉字，有助于提高中文阅读能力。信息时代，阅读平台多样化和多元化，现在不仅有纸制的书籍、杂志、报刊等平面载体。越来越多的电子产品进入我们的生活。随着各类阅读平台的大量涌现，儿童读到影视屏幕上汉字的机会越来越多。孩子使用电子产品，会影响他们的学习，有些家长甚至不让孩子多看视频。那么，信息时代的孩子不可避免地会接触到电子产品 ...postprin

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系统工程与电子技术, 2006

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Zhongguo kexue, 2011

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SCIENTIA SINICA Informationis, 2021

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BIO-PROTOCOL, 2021

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Voices from the Underworld, 2020

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Advanced Science, 2023

Iron making is the biggest single cause of global warming. The reduction of iron ores with carbon generates about 7% of the global carbon dioxide emissions to produce ≈1.85 billion tons of steel per year. This dramatic scenario fuels efforts to re-invent this sector by using renewable and carbon-free reductants and electricity. Here, the authors show how to make sustainable steel by reducing solid iron oxides with hydrogen released from ammonia. Ammonia is an annually 180 million ton traded chemical energy carrier, with established transcontinental logistics and low liquefaction costs. It can be synthesized with green hydrogen and release hydrogen again through the reduction reaction. This advantage connects it with green iron making, for replacing fossil reductants. the authors show that ammonia-based reduction of iron oxide proceeds through an autocatalytic reaction, is kinetically as effective as hydrogen-based direct reduction, yields the same metallization, and can be industrially realized with existing technologies. The produced iron/iron nitride mixture can be subsequently melted in an electric arc furnace (or co-charged into a converter) to adjust the chemical composition to the target steel grades. A novel approach is thus presented to deploying intermittent renewable energy, mediated by green ammonia, for a disruptive technology transition toward sustainable iron making.

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