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Flash教学再探讨 总被引:4,自引:0,他引:4
针对Flash教学实践中,如何优化教学过程,提高课堂教学有效性及艺术性的开发学生的自主学习能力的问题,结合教学案例进行了一系列的探讨。 相似文献
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Successful balloon angioplasty of pulmonary artery stenosis in two cats and associated complications
Donald P. Schrope William D. Tyrrell Kristin A. Jacob 《Journal of Veterinary Cardiology》2017,19(6):530-537
Two cats (2.5 months and 8 months old) were each evaluated due to a loud systolic murmur, and each was diagnosed with severe pulmonary artery stenosis at the bifurcation of the main pulmonary artery. Echocardiograms confirmed significant right atrial dilation and right ventricular dilation and/or hypertrophy that was progressive in one cat. Atenolol was initiated and the cats were referred for interventional therapy. Balloon angioplasty was performed via the jugular vein. In case 1, the pressure gradient across the stenosis was reduced from 169.7 mmHg to 23.6 mmHg and 52.4 mmHg across the left and right branch pulmonary arteries, respectively. In case 2, the stenotic echocardiographic gradient was reduced from 64 mmHg to 38.0 mmHg and 35.3 mmHg across the left branch and right-branched pulmonary arteries respectively. Both patients developed moderate to severe dynamic right ventricular outflow tract obstruction post angioplasty. Case 2 developed hypotension, desaturation, and ventricular arrhythmias intra-operatively. Case 1 was discharged but appeared to develop acute lung perfusion injury approximately 36 h after procedure that was manifested by radiographic pulmonary congestion and pulmonary infiltrate of the left lung fields. The congestion was successfully managed medically. Serial echocardiograms over the following 4 years in case 1 showed near complete resolution of the stenosis and associated right heart enlargement. 相似文献
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热带马尾松--芒萁林的林火发展特点研究 总被引:2,自引:0,他引:2
对南方热带地区典型的马尾松和芒萁进行了工业分析和防火性能实验,并基于热解反应动力学方程,对马尾松和芒萁进行了热解实验,测算了马尾松和芒萁的热解动力学参数,分析了马尾松和芒萁的燃烧和热解特性。用Lechteilier法则计算了马尾松和芒萁木材的挥发分可燃气轰燃的下限浓度,对其挥发分在一定时间、空间内是否达到发生轰燃进行预测。分析了木材的传热特性,对热带典型树种的林火发展特点进行了分析。 相似文献
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中高职院校以就业为导向,开设了《Flash动画制作》课程。该课程与就业联系比较紧密,实践性很强。研究提出了传统的教学方法已经不能够适应该课程的教学,提出有必要在Flash教学中引入案例教学。 相似文献
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介绍了Flash中Function、DuplicateMovieClip、SetProperty、Set Variable、If、SetInterva动作脚本的使用,来实现下雪特效的制作. 相似文献
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介绍了在 Authorware 中利用事件交互,将用 Flash 制作的动态弹出式菜单应用于 Authorware 程序中的详细实现方法。由于只需修改与该菜单关联的外部 XML 文档即可改变菜单的菜单项及色彩效果等参数,故可以很方便地将完成的程序移植到其他程序中,大大提高了课件制作时的效率,因而有较大的应用价值。 相似文献
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应用裂解-气相色谱质谱(PY-GC/MS)分析技术,利用5150全自动快速裂解仪闪速升温功能,对油菜秆在900℃时快速热裂解产物的主要组分及其相对含量进行了分析。分离并确认出分子量在40~650D范围的25种化合物,主要是烃类含氧有机化合物(包括酚、酯、醛、酮、醇、酐、酸类)和少数不饱和烃类化合物。分析表明,裂解物中有多种成分是重要的化工原料,利用新技术对这些组分进行分离提纯,可以得到宝贵的化工原料。 相似文献