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1.
《中学数学教学参考》2007,(Z1)
A Proposition is a declarative sentence which iseither true or false (but not both true and false)."Itis raining","Today is Tuesday"and"3 is a factor of12"are examples of such sentences.We shall notconcern ourselves with sentences that can not beassigned a true or false value.Sentences of thisnature are usually questions or commands,forexample,"Where is he?"and"Stand up!"If we take some propositions and put them 相似文献
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Is the Simple View of Reading too Simple? 总被引：1，自引：1，他引：0
Ingjerd Høien‐Tengesdal 《Scandinavian Journal of Educational Research》2013,57(5):451-469
According to the Simple View of Reading (SVR), reading comprehension is the product of word decoding ability and linguistic comprehension (R = D × C). However, there is also evidence showing that an additive model (R = D + C) explains just as much or even more of the variance in reading comprehension than the product model. To further evaluate these models, 467 Norwegian students in grade 6 were administered measures of reading comprehension, decoding ability, listening comprehension, phonemic awareness, and rapid digit naming. Hierarchical regression analyses were conducted to evaluate the explanatory power of each model, in addition to the influence of phonemic awareness and rapid naming. The preliminary hierarchical regression analyses were replicated among Swedish students. According to the present study, the additive model explained more of the variance in reading comprehension than the product model, and only rapid naming contributed significantly to explain variance in reading comprehension, above and beyond that explained by the SVR. 相似文献
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感谢生活中平常的小事 它于我意味着太多太多 如那纤纤素手悄悄握着我的手,如那小猫友好地触摸… 相似文献
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偶像剧《如果回到从前》正在深圳热拍。Super Junior崔始源加上王珞丹、袁弘的组合,女主角从38岁穿越回22岁的题材,新鲜吗？期待吗？当然！ 相似文献
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ABBAS T.A. OMAR M.S. 《浙江大学学报(A卷英文版)》2007,8(5):793-796
A suitable simple optical cryostat for optical, magneto-optical, electrical and thermo-electrical measurements was designed. It is suitable for use in a magnetic pool gap as narrow as less than 1 cm. Throughout a long period of time, the heat diffusion process of the cryostat can be easily operated at slow increase in sample temperature in a range 1.25 K/min at 200 K that will be reduced gradually to 0.66 K at room temperature. Liquid nitrogen was used to cool down the temperature. During the operation, the change in the measured energy gap of a semiconductor sample and other physical parameters resulting from the change of temperature can be corrected through the temperature coefficient of that parameter at the corresponding temperature. The cryostat was successfully used for all experiments mentioned above to measure the properties of a single crystal of GaP (Gallium Phosphate) semiconductor. 相似文献
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JIANG Wugui FU Mingfu CHEN Liangsen GENG Shiqi Department of Materials Science Engineering Nanchang Institute of Aeronautical Technology Nanchang Jiangxi P.R. China Institute of Engineering Mechanics Nanchang University Nanchang Jiang 《重庆大学学报(英文版)》2004,3(1):78-81
~~6.ConclusionsJaumannsrate,FusrateandWusratewereincorporatedintotheendochronicequationstoanalyzesimpleshearfinitedeformation.Incrementalequationsandnumericalsolutionsarepresentedforthreeendo-chronicobjectivemodels.TheresultsshowthatanoscillatoryshearstressresponsetoamonotonicallyincreasingshearstrainoccurswhentheJaumannsrateobjectivemodelisemployedforendochronicmaterials.Theoscillatoryresponseisdependentontheadoptedobjectiverate.ComparedwiththeJaumannsrate,theFusrateandtheWusratesatisfythe… 相似文献
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有音乐梦想的人不少,却大都坚持不了,成功的更是凤毛麟角。我喜欢有梦的人。却更欣赏坚持的人。“我型我SHOW”让我们认识了俞思远,知道了一个认真的乐队——B.i.Z。B．i.Z的三人说,只要喜欢的就会追求和坚持到底,在音乐的路上,他们无怨无悔如今,第一张专辑的诞生。令他们跨出了重要的一步。他们究竟会不会成为那些少数,现在还是未知数。 相似文献
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1introduction'Inthispaper,weconsiderthefollowingnonlinearproblemwithnparameters./'(x,l,llll'..,/I,,~I)=0.(l.l).eel'exisaHilbertspace,A,if,(i=1,2,',n--l)arerealparallletersalldj'isasufficientlyslllootllmappingwithZZ-symnletly,nalllely,illersexistsaninver… 相似文献
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现在完成时和一般过去时的区别一直是语言学家和语法家们争论的焦点。“关联理论”和“不确定的过去理论”是两个颇有影响的理论，在解释现在完成时和一般过去时的区别时各有优势和局限。本文试图从语用和话语分析的角度来辨析现在完成时和一般过去时的区别。 相似文献
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Exploratory factor analysis (EFA) is an important tool when the measurement structure of psychological constructs is uncertain. Typically, factor rotation is applied to obtain interpretable results resembling a simple structure. However, an overwhelming multitude of rotation techniques is available of which none is unequivocally superior. Recently, regularization has been suggested as an alternative to factor rotation. In two simulation studies, we addressed the question if regularized EFA is a suitable alternative for rotated EFA. We compared their performance in recovering predefined factor loading patterns with varying amounts of cross-loadings. Elastic net regularized EFA yielded estimates comparable to rotated EFA. For complex loading patterns, both rotated and regularized EFA tended to underestimate cross-loadings and inflate factor correlations, but regularized EFA was able to recover loading patterns as long as a subset of items followed a simple structure. We conclude that regularization is a suitable alternative to factor rotation for psychometric applications. 相似文献
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《海外英语》2008,(5):52-54
Architects often tell you "less is more." In other words, simple1 and tastefully designed structures sometimes have more aesthetic beauty than those over-laden with decorations. The concept of "less is more" is so appealing that it is constantly used in areas other than architecture. In writing, no matter what you write-be it an essay, research paper, or public speech-being simple is key to entertain your readers and audience with your ideas. Eloquence comes from the ability to explain a great idea with simple words, since people do not understand things that are not clearly said. Today, let’s talk about some great speeches, whose eloquence was achieved through simple words. 相似文献
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陆静平 《重庆大学学报(英文版)》2003,2(1)
1. Introduction Product data management (PDM) is a technology helping workgroup, department, division, or enterprise manage product data and development process throughout the product life cycle, from inception, through development and production to dispatch and beyond. As an integration tool connecting many different areas, PDM manages product data throughout the enterprise, ensuring that right information is available to the right person at the right time and in the right form. Web-based … 相似文献
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The Thorn Birds is a saga novel written by Colleen McCullough.As to Frank in the book,it is generally considered that he has an Oedipus Complex.And in a way,Fiona’s Phaedra Complex results in Frank’s failure in getting rid of his Oedipus Complex.This paper mainly analyzes Fiona’s Phaedra Complex and its influence on Frank. 相似文献
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SUNChu－ren ZHANGLian－sheng 《上海大学学报(英文版)》2001,5(4):287-291
The penalty function method is one basic method for solving constrained nonlinear programming,in which simple smooth exact penalty functions draw much attention for their simpleness and smoothness.This article offers a new kind of simple smooth approximative exact penalty function of general constrained nonlinear programmings and analyzes its properties. 相似文献
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Doris George Yohannan Aswathy Maria Oommen Bhaskaran Jayaprasad Amogh Nithin Kadakampallil Raju Rakesh Omana Suresh Santhanu Jagannath Nair 《Anatomical sciences education》2022,15(3):552-565
Spatial understanding of complex anatomical concepts is often a challenge for learners, as well as for educators. It is even more challenging for students with low mental spatial abilities. There are many options to teach spatial relationships, ranging from simple models to high-end three-dimensional (3D) virtual reality tools. Using a randomized controlled trial design, this study explored the use of a unique combination of deictic and iconic hand gestures to enhance spatial anatomical understanding, coining the term “Air Anatomy”. The control group (n = 45) was given a lecture on the anatomy of extraocular muscles, while the intervention group (n = 49) received the same lecture including “Air Anatomy” hand gestures. When compared to the control group, the post-test scores for the intervention group were significantly higher for basic recall (P < 0.001; Mann–Whitney U test) and for the application of knowledge (P = 0.015; Mann–Whitney U test). Students with low to moderate spatial ability (as assessed by a mental rotation test) were found to benefit most by this technique. Students in the intervention group also reported a lower extrinsic cognitive load and higher germane load, when compared to the control group. An instructional skills questionnaire survey indicated the effectiveness of this technique in improving overall classroom experience. Feedback of the students in the intervention group was also favorable for instruction using “Air Anatomy”. The study suggests that “Air Anatomy” is a useful, “no-cost”, accessible method that aids spatial understanding of anatomical concepts. 相似文献
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《校园英语(教研版)》2016,(11)
<正>Among the stories in Geoffrey Chaucer’s The Canterbury Tales,The Wife of Bath is the most impressive one.In this short story,Chaucer shows us a vivid image—the wife of Bath.Belonging to both the Middle Ages and the Renaissance,this short story has some special features.From Dark Agesto there latively free Renaissance,people’s thinking was liberated a lot and more and more people 相似文献
19.
HUA Xiao-yan 《海外英语》2014,(16):200-201
Marriage is the main idea of Jane Austen’s novels. The novel reflects the ideal marriage views by describing several different marriages. It reveals a real marriage should be based on love, actual need, morality and equality. It creates a contrast between a successful marriage and an unsuccessful one. Elizabeth and Darcy’s marriage is considered as a successful one. In fact it embodies the author’s own concept of marriage, it is a fault to get married for only money and social status, but it is also foolish without thinking of these factors. 相似文献
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Knitted fabric is very different from woven fabric due to its more complicated knitting structures. The buckling of knitted fabric sheets subjected to simple shear in the wale direction is investigated analytically in consideration of the large deformation of fabric sheet in critical configuration. The theory on instability of finite deformation is applied to the analysis. All the stress boundary conditions of knitted fabric sheet are satisfied. An equation to determine the buckling direction angle is derived. It is shown that there are two possible buckling modes, flexural mode and barreling mode. The buckling condition equations for the flexural mode and barreling mode are also obtained respectively. Numerical illustrations reveal that only the flexural mode can actually occur and the barreling mode cannot, which agrees with the experimental observations. For a permitted buckling mode on margin boundaries, the critical value of shear amount and the buckling direction angle can be determined. 相似文献