平方根与立方根在生活中的应用

数的发展是人们在实践中总结出来的,又反过来为实际生活服务.下面举例说明数的开方在生活中的应用.例1小明买了一箱苹果,装苹果的纸箱尺寸为50×40×30(长度单位为厘米).小明要将这箱苹果分装在两个大小一样的正方体纸箱内,问这两个正方体纸箱的棱长为多少厘米?     

“纸箱(盒)制作”竞赛活动征稿启事

在日常生活中,常会有许多废弃的大小纸箱(盒),如电视机、电冰箱、洗衣机、微波炉等家用电器包装纸箱,水果、酒类、饮料等的包装纸盒。巧妙地运用这些纸箱(盒),可以为孩子制作出许多有趣的游戏房、玩具屋或各种玩具,会受到孩子们的喜爱,既经济又能密切师生和亲子关系。为此,本刊举办“纸箱(盒)制作”竞赛活动,要求如下:1.将制作成品拍成5英寸或7英寸彩色照片(正面、侧面各一幅),每幅照片背面请写明作者姓名、通讯地址、邮政编码、联系电话。照片不退,清白留底     

基于ANSYS的升降式防护密闭门扇设计

在分析门扇制作的基础上，借助大型有限无分析软件ANSYS，对门扇梁架结构设计方案进行了探讨，得出合理的梁架结构设计方案后，通过改变梁架截面和面板，最终得到了合理的门扇制作模型。在保证结构强度的同时降低了门扇重量和尺寸。     

巧用纸箱做屏风

材料:纸箱三只、刻刀、彩色纸、颜料、胶水、白纸、细竹针。 制作: 一、房子屏风(适用于“娃娃家”游戏) 1、打开纸箱,切开纸箱一边,在纸箱盖上画好三角形(图一)。     

以科技竞赛改进土木工程专业考核方法研究

从促进学生学习热情和提高能力角度出发,将科技竞赛引入到了高校课程考试当中,从而培养学生创新意识和创新能力,提高学生理论水平和实际动手能力。提出了与土木工程专业课程特点相适应的科技竞赛项目:模型制作竞赛、结构设计竞赛、测量竞赛和高性能混凝土配制竞赛。在阐述了这四类竞赛项目的意义和实施办法后,根据项目特点分别建立了以能力考察和比赛成绩为主要参考依据的评分标准。从而可将科技竞赛在学生中更加广泛普及,促进考核形式多样化发展,对高等教育教学改革具有一定的借鉴意义。     

基于科技制作的项目教学法的研究

项目教学法是以实践为导向,教师为主导,学生为主体的教学方法,是从职业的实际出发选择具有典型性的事例作为教学的内容。而科技制作是项目教学实现的有效途径之一,围绕着科技产品的制作,将相关课程的理论知识转换为实践应用,真正的做到了学以致用。     

体育器械小制作有用的纸箱

材料: 各种大小不一的纸箱,长布条、绳子、剪刀、针线。制作: 1.在纸箱的四个侧面画上各种蔬菜、水果或动物图案。向上的一面掏空。在纸箱的侧面穿上绳子。2.画动物图案的,把它的嘴巴     

高职服装专业整体职业能力课程体系设计

以服装结构设计能力为主线,以典型服装为载体,以设计成果为抓手,构建基于整体职业能力培养的课程体系.在该课程体系中,一年级重点完成基本款型上下装结构设计与制作课程,二年级重点完成春夏、秋冬女装下装结构设计与制作课程,第五、第六学期安排学生在校内和校外顶岗实习.     

信息时代下的“结构设计与实践”实验教学创新

课程的实验教学使用意粉设计制作桥结构,通过计算软件数值模拟分析和实际制作加载,使学生加深了对理论的理解和运用。同时增添了材料强度实验环节,完善了结构设计的过程,使学生不但能够更完整地掌握实际结构分析与设计的过程,还给予学生更大的创新空间。同时设置微信线上平台,进行线上资源共享与在线互动,不但及时反馈意见和解决问题,还激发学生对课程更大的兴趣。     

《网页设计与制作》项目课程教学改革

<网页设计与制作>项目课程教学改革的出发点是提高学生的网站实际制作技能.该课程以典型的网站项目为核心,按照实际开发的工作过程将项目分解为若干个任务,并按照任务实施的需要来进行相关知识和技能的培养和训练.在教学中可采取多级项目教学,要重视项目的完成,并实施情景导入、葫芦藤式的任务驱动、学做合一、小组协作学习等教学方法.同时还要重视项目课程教材的建设和学生学习过程的考核.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

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?     

只要努力,不要后悔

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.     

浅谈移民问题

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.     

Sister Carrie, an Adherent of Desires

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.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.