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mathematical相关的网络例句

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In the light of the complex, high-level and non-linear feature of the mathematical model which describe the transport of the coalbed methane, this paper study the fully-implicit solving method of the mathematical model in detail. Based on the complexity of the algebraic equations which are formed eventually, according to the alternating direction implicit difference pattern, this paper use the iterative method and the fully main element Gauss-Jordan eliminating method to solve equations, which is to use the iterative method to determine coefficient matrix and use the fully main element Gauss-Jordan method to solve th linear algebraic equation group, at the same time of studying the solving method of the mathematical model, according to the devising requirement of FORTRAN77 program structure, this paper draw up computer program and form the corresponding computer model, and verify the validity and reliability of the model in theory by operating the model.

重点研究了模型内、外边界及有关参数的处理,针对描述煤层甲烷运移的数学模型是一个复杂、高阶非线性数学模型的特点,详细研究了模型的全隐式求解方法,根据最后形成的代数方程组的复杂性,按交替方向隐式差分格式,采用迭代与全选主元高斯约当消去法相结合的方法求解方程:即确定系数矩阵采用迭代法,求解线性方程组时采用全选主元高斯约当消去法,在研究模型解法的同时按FORTRAN结构化程序设计的要求,编制计算机程序,形成相应的CBMRS计算机模型,并通过模型的运行从理论上证明了模型的正确性与可靠性。

The results from confirmatory factor analysis indicated:(1) The structural model of children's early mathematical ability was reasonable and it had good structural validity. In detail, children's early mathematical ability was explained by number, arithmetic, measurement, space/geometry and pattern;(2) The structure of children b early mathematical ability was stable across different ages but the structural model was not consistent completely;(3) Boys' structural model was identical with that of girls'.

经验证性因素分析发现:(1)儿童早期数学认知能力的结构模型是合理的,可接受的,具有较好的构想效度,具体讲,数、计算、测量、空间/几何和模式认知能力五个维度共同解释著儿童早期的数学认知能力;(2)不同年龄儿童早期数学认知能力的结构具有稳定性,但是结构模型並不完全一致,某些项目的解释率有所不同;(3)男、女儿童早期数学认知能力的结构模型具有一致性。

Mathematics: Understands and applies basic and advanced properties of the concepts of geometry; Use the Pythagorean theorem and its converse and properties of special right triangles to solve mathematical and real-world problems; Understands the basic concepts of right triangle trigonometry (e.g., basic trigonometric ratios such as sine, cosine, and tangent); Uses trigonometric ratio methods to solve mathematical and real-world problems (e.g., determination of the angle of depression between two markers on a contour map with different elevations); Uses properties of and relationships among figures to solve mathematical and real-world problems e.g., uses the property that the sum of the angles in a quadrilateral is equal to 360 degrees to square up the frame for a building; uses understanding of arc, chord, tangents, and properties of circles to determine the radius given a circular edge of a circle without the center

数学:理解和应用几何概念的初级和高级特性;用毕德哥拉斯定理、逆定理以及特殊直角三角形性质解决数学的和现实世界的问题;理解基本的直角三角形三角比;运用三角比方法解决数学的或现实的问题。(等高线图上的两个标记之间的俯角确定)运用形体之间的关系及其属性解决数学的或现实的问题(利用四边形内角和等于360度来为建筑物框架取正,运用弧,弦,切线和圆的性质确定缺少中心的一段圆弧的圆心

Due to its good effect in the reservation of information of signal abrupt change, mathematical morphology is often applied in the detection and location of short-term power quality disturbance, however, there is still a defect of invalid detection existing in partial detection methods based on mathematical morphology while some zero-crossing disturbances are detected. In this paper three mathematical morphology based disturbance detection and location methods, i.e., the method based on first-order derivation and morphological gradient, the method based on morphological gradient and soft threshold processing and the method based on dq decomposition and top-hat transform, are analyzed, that is, by means of simulation the adaptability of these methods in the analysis on the signals of voltage sag, voltage swell and electromagnetic transient oscillation is compared.

数学形态学因其在保留信号突变点信息方面有很好的效果,因此常用于短时电能质量扰动的检测和定位,但基于数学形态学的部分方法仍存在对某些过零点扰动检测失效的缺点,文章分析了3种基于数学形态学的扰动检测和定位方法,即基于1阶求导和形态梯度的方法、基于形态梯度和软阈值处理的方法、基于dq分解和高帽变换的方法,通过仿真比较了3种方法在分析电压暂降、电压暂升、电磁暂态振荡等信号方面的适应性,结果发现基于dq分解和高帽变换的方法在检测过零点扰动时具有很好的效果,因此选取这种方法对实测扰动数据进行了检测和定位分析。

IGMs are a kind of experimentally new-identified optical mode, standing with apparent potential in design and application. However, the mathematical expression of IGMs under Elliptic Cylindrical coordinates, preventing us from understanding IGMs instinctively, stands a formidable challenge in application. The pure mathematical expressions of IGMs are composed by a great deal of calculation, which also bids us no help in common use. I am, therefore, prompted to build an easier mathematical approach in this study.

Ince- Gaussian modes为在实验中可见的一种崭新型态的光学模态,对於我们在应用和设计上的实现,拥有许多潜力;然而,由於IGMs是在椭圆圆柱座标系下的数学来表示,造成了我们无法直觉的去了解,也成了我们在使用上的一大考验; IGMs的不易亲近,也让我们无从进一步去了解其物理特性,若纯粹以数学出发,又包含了庞大的运算,无法达到普遍的运用,是故我希望能在这篇论文使用简单的数学描述来达成对IGMs较平易近人的理解。

According to the problems that are encountered in designing the mathematical knowledge representation language in NKI (national knowledge infrastructure) and after the discussion of ontological assumptions for mathematical objects, two kinds of formalisms for the representation of mathematical knowledge are provided. One is a description logic in which the range of an attribute can be a formula in some logical language; and another is a first order logic in which an ontology represented by the description logic is a part of the logical language.

根据在设计NKI(national knowledge infrastructure)的数学知识表示语言中遇到的问题,并在讨论了数学对象的本体论假设的基础上提出了两种数学知识的表示方法:一种是以一个逻辑语言上的公式为属性值域的描述逻辑;另一种是以描述逻辑描述的本体为逻辑语言的一部分的一阶逻辑。

The basic spirit of Pythagoreanism is the pursuit of the mathematical harmoniousness of the universe, and it can guide scientists to characterize the internal mystery of the physical world in terms of mathematical language and mathematical formula successfully and it fit to the current computationalism.

毕达哥拉斯主义的基本精神,正是追求宇宙的数学和谐性的思想,它能成功地引导科学家使用数学语言、公式来刻画物理世界的内在奥秘,这是与当今流行的"计算主义"相互呼应的。

During the study, in order to decrease the complexity, the article simplifies the geomorphic process, defines the ideal state, and, according to the geomorphic principle, reasons out some of the 4-Dimensional Geomorphic Mathematical Sub-Models that include the 4-Dimensional Tectonic Geomorphic Mathematical Model, the 4-Dimensional Depositional Geomorphic Mathematical Model, and the 4-Dimensional Denudate Geomorphic Mathematical Model.

在研究过程中,为了减低复杂程度,简化了地貌过程,规定了理想条件,并根据地貌学原理推导了部分理想条件下的四维地貌数学模型,分别是四维构造地貌数学模型、四维沉积地貌数学模型和四维剥蚀地貌数学模型。

The major findings were as follows:(1) There were significant interactions between Feedback and Goal-setting in both students' mathematical performance and test anxiety;(2) No significant differences were found in mathematical performance and test anxiety between the student self-set goal condition and the teacher-assigned goal condition when feedback was presented;(3) There were significant differences in students' mathematical performace between correct-predicting students' and incorrect-predicting students, but no difference was found in students' test anxiety between the two groups of students;(4) High-estimating students and low estimating students showed significant differences in mathematical performance, but no difference in test anxiety.

在有回馈的情形下,学生自订目标与敎师指定目标间,其学生在数学作业表现或是在数学测试焦虑分数上均无显著差异存在。3。学生自订目标中,预测正确组与预测不正确组学生在数学作业表现上有差异存在,在数学测试焦虑分数上无差异存在。4。学生自订目标中,高估组与低估组学生在数学作业表现上有差异存在,在数学测试焦虑分数上无差异存在。

Going at the teaching of mathematical thought and method during high school is an important means by which the school in the 21th century cultivate the person with innovative spirit and practical bility.Moreover going in for the teaching study of the mathematical thought and method in high school can make ours absorb well the international and national mathematical thought and methodology knowledge,and improve the cognition to the importance of the teaching about mathematical thought and method,so that they are able to practise consciously and selfconsciously the teaching .

中学阶段进行数学思想方法的教学是21世纪学校培养具有创新精神与实践能力的人才的重要手段,而进行中学数学思想方法的教学研究更能使我们中学数学教师充分吸收国内外数学思想方法论知识,提高对数学思想方法教学重要性的认识,从而能够有意识、自觉地实践数学思想方法教学。

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相关中文对照歌词
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推荐网络例句

Were used by medieval physicians...

被中世纪的医师用来。。。

Article 19 Where the shareholders of a limited liability company or the directors and controlling shareholders of a joint stock company or the actual controllers of a company maliciously dispose of company properties and thus cause losses to any creditors after the company dissolution, or fail to make liquidation and cheat the company registration organ to deregister the legal person by means of a false liquidation report, if any creditors claim that the aforesaid shareholders, directors and controlling shareholders or actual controllers shall assume the corresponding civil liability for the debts of the company, the people' s court shall support the claim.

第十九条有限责任公司的股东、股份有限公司的董事和控股股东,以及公司的实际控制人在公司解散后,恶意处置公司财产给债权人造成损失,或者未经依法清算,以虚假的清算报告骗取公司登记机关办理法人注销登记,债权人主张其对公司债务承担相应赔偿责任的,人民法院应依法予以支持。

Now that he is absent ,you will have to do all the job by yourself.

既然他没来,你就只好自己干活了。