6 research outputs found

    Research on Image Completion Technology of Cartoon Image

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    图像修复是根据一定的规则对图像中的信息缺失的部分进行填充修复的算法,要求修复后的图像能够尽量与图像中原有的部分保持连续,平缓过渡。图像修复是图像处理中的一个重要课题,在破损照片修复、图像编辑、图像中物体移除等方面有广阔的应用前景。本文提出的图像修复算法是针对动漫图片的特点提出的,将图片中的待修复区域分为结构部分和非结构部分两大部分,然后分别根据它们的特点提出相应的修复方案,使得最后的修复结果能够保持原来图片的结构连通性,符合人眼的视觉习惯。算法可以分为动漫图片的结构信息提取算法,动漫图片的结构修复算法和动漫图片的非结构区域修复算法三部分。 动漫图片结构信息提取利用二阶差分算法计算梯度值和梯度...Image Completion is a technique to fill the missing or damaged region of image according some rules. The result of image completion is required to keep continuous and transit gentle. Image Completion is an important topic in image processing, and it can be widely used in photo repairing, image editing, object removal and so on. The method introduced by this paper is according to the characteristic...学位:工学硕士院系专业:软件学院_计算机软件与理论学号:2432012115228

    The Effect of Blended Learning to the Students’ Achievement in Grammar Class

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    ABSTRACT Blended learning is believed to improve students’ understanding in learning second language. The employment of offline and online activities is expected to give better outcome than the traditional face-to-face activities. This article presents how blended learning was applied in an English grammar class and whether it significantly improved students’ achievement after the treatment. The participants involved in this research were 26 students of the the second semester students of the English Letters Department, Sanata Dharma University. A pre-experimental research was conducted by comparing the means of the participants’ scores in both pre-test and post-test. The analysis figured out that there was a significant improvement, proven by the paired t-test analysis. The p-value 0.00 was less than alpha 0.05. This research concluded that blended learning was effective to assist the students to learn English grammar. To strengthen the findings, this research also involved pre-questionnaire and post-questionnaire to understand students’ responses on the use of blended learning. In the end of the semester, most students found that online activities help them comprehend and practice the materials. Students’ reflective journals also revealed that blended learning was able to improve their understanding and interest in learning English grammar.  ABSTRAK Blended learning dipercaya mampu meningkatkan pemahaman siswa dalam memahami bahasa asing. Penggunaan aktifitas offline dan online diharapkan mampu memberi luaran yang lebih baik dibandingkan aktifitas tatap muka secara tradisional. Artikel ini menyajikan bagaimana blended learning diterapkan dalam kelas English grammar dan mengungkapkan apakah blended learning memberikan perbedaan berarti dalam pencapaian mahasiswa sebelum dan setelah perlakuan. Partisipan yang dilibatkan dalam penelitian ini adalah mahasiswa semester dua dari Program Studi Sastra Inggris, Universitas Sanata Dharma. 26 partisipan dilibatkan dalam penelitian ini. Penelitian pra-eksperimen diterapkan dengan membandingkan rata-rata nilai dari peserta dalam pre-tes dan pos-tes. Hasil analisis menunjukkan bahwa terdapat perbedaan signifikan rata-rata dari kedua tes, yang ditunjukkan dengan analisis pasangan t-tes. Nilai p menunjukkan 0.00 dan lebih kecil dari alpha 0.05. Penelitian ini menyimpulkan bahwa blended learning efektif untuk mendampingi mahasiswa belajar English grammar. Untuk memperkuat penemuan tersebut, penelitian ini juga melibatkan pre-kuesioner dan pos-kuesioner. Pada akhir semester, sebagian besar mahasiswa menemukan bahwa aktifitas online membantu mereka memahami dan melatih materi yang mereka pelajari. Jurnal reflektif mahasiswa juga menunjukkan bahwa blended learning mampu meningkatkan kemampuan mereka belajar English Grammar.How to Cite: Isti’anah, A. (2017). The Effect of Blended Learning to the Students’ Achievement in Grammar Class. IJEE (Indonesian Journal of English Education), 4(1), 16-30 doi:10.15408/ijee.v4i1.5697.DOI: http://dx.doi.org/10.15408/ijee. v4i1.5697

    Electrochemical Study on Electroless Copper Plating Using Sodium Hypophosphite as Reductant

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    Correspondent, E-mail: [email protected]; Tel/Fax: +86592-2181436.[中文文摘] 通过电化学方法研究了以次磷酸钠为还原剂,柠檬酸钠为络合剂的化学镀铜体系.应用线性扫描伏安法,检测了温度、pH值、镍离子含量对次磷酸钠阳极氧化和铜离子阴极还原的影响.结果表明,升高温度能够加速阳极氧化与阴极还原过程;pH值的提高可促进次磷酸钠氧化,但抑制铜离子还原;镍离子的存在不仅对次磷酸钠的氧化有强烈的催化作用,而且与铜共沉积形成合金.该合金有催化活性,使化学镀铜反应得以持续进行.[英文文摘] The process of electroless copper plating, using sodium hypophosphite as the reductant and sodium citrate as the chelating agent, was studied using linear sweep voltametry. The effects of temperature, pH, and concentration of nickel ion on the anodic oxidation of hypophosphite and the cathodic reduction of copper ion were tested. The results indicated that the higher ultrasonic bath temperature accelerated both the anodic and the cathodic processes. The increasing pH value promoted hypophosphite oxidation, whereas it blocked the reduction of the copper ion. The nickel ion not only intensively catalyzed the hypophosphite oxidation, but also codeposited with the copper ion to form the Cu-Ni alloy. With regard to its catalytic activity, this alloy enabled the continuation of the electroless copper plating reaction.国家科技攻关计划项目(2004BA325C)资

    偏钒酸铵热分解研究

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    <正> 偏钒酸铵在不同气氛下热分解可以获得各种钒氧化物。近年来在 N_2中焙烧制取电极材料 V_6O_(13)受到重视。在 N_2中分解过程文献报导不尽一致,往往关注 TG 结果,对热行为的了解还不够。本工作使用 TG、DTG 和 DTA 手段在 N_2和其它气氛下考察 NH_4VO_3分解过程,对反应机理作初步探讨。1 实验试剂级 NH_4VO_3,纯度大于98%,球磨后平均粒径约5μm作为试样使用。实验用气为高纯 N_2、Ar。TG 和 DTG 在 SETARAM 微量热天平上进行,铂坩埚,试样量20-30mg,灵敏度取25mm/mg,加热速度~7℃/min

    图书馆营销品牌升级实施策略——以厦门大学图书馆“Library Go”为例

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    近年来,国内图书馆营销成效卓著,涌现一批各具特色的品牌营销项目,高校图书馆成为品牌营销的生力军。随着移动互联网和大数据技术的发展,图书馆应不断探索、挖掘用户需求,提升服务,推动营销品牌升级。2018年初,厦门大学图书馆的年度报告项目"圕:我和你"成功升级为"Library Go",通过这一营销案例,详述了营销品牌升级的策略:引入新思路、挖掘新内容、设计新风格、应用新技术、传播新媒体。未来图书馆品牌营销的趋势是将"以用户为中心"的营销活动,转变为主动契合、参与社区或校园整体发展的营销实践

    四川无融合生殖水稻(SAR-1)的初步研究

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