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1.Abstract: By the first integral method and properties of integral depending on a parameter, the necessary and sufficient condition on the existence of dead core solution for the boundary value of a class of nonlinear ordinary differential equations has been specifically constructed.
文摘:应用首次积分法并结合含参变量积分的性质，具体构造了一类二阶非线性常微分方程边值问题存在非负死角解的充分必要条件.收藏指正
2.Based on the scalar diffraction theory and the boundary condition of Rayleigh-Sommerfeld, the accurate on-axis propagating wave function of plane wave diffracted by small circular band is obtained by solving the first integral of Rayleigh-Sommerfeld.
摘要从标量衍射理论出发，采用瑞利－索末菲衍射边界条件，通过求解第一类瑞利－索末菲衍射积分得到平面波经圆环衍射后轴上的波函数，进而分析轴上的光强特性以及光强极值数量、位置和大小与衍射圆环内外孔径的关系。收藏指正
3.Monotone iteration method and upper and lower solutions were used to approach to the solution of the first-order integral boundary value problem on time scales form below and above by monotone convergent sequence.
摘要运用单调迭代方法和上下解方法构造了两个单调序列，从上下两个方向分别收敛到一阶积分边值问题。收藏指正
4.Evaluations of the first kind improper integral integral from n=0 to ∞( [sinαx/x])~ndx
一类广义积分integral from n=0 to ∞( [sinαx/x])~ndx的计算收藏指正
5.The first one is the American Integral Economic and Environmental Satellite Accounts.
第二部分 国内外环境一资源经济核算帐户现状收藏指正
6.The subsection integral is used to get a simple function at first in the numerical calculation, and boundary integral is realized by gauss integral on each panel and line, then the complexity and isstability as a result of the high frequency surge function can be avoided.
数值计算中，首先采用分部积分对被积函数进行简化处理，然后采用高斯积分实现面元和线元上的积分，避免了被积函数为高频振荡函数所带来的数值计算的复杂性和不确定性。收藏指正
7.In the first chapter, we obtain the boundedness for Marcinkiewicz integral operator, which related to the Littlewood-Paley g-function, on the spaces of BMO_w and (BMO)_w.
在第一章中,我们主要得到了一类相应于Littlewood-Paley g-函数的Marcinkiewicz积分算子μΩ在两类加权BMO空间BMO_ω和(BMO)_ω上的有界性。收藏指正
8.The essay builds the integral upper limit function to obtaining other proof about theorem of integral first median value, and combine with theorem of calculus median value to proving Integral equality, inequality and median proposition.
通过构造积分上限函数,给出积分第一中值定理的另一证法,并结合微积分中值定理证明积分等式、积分不等式与定积分的中值命题。收藏指正
9.This paper is devided into two parts. The first part is devoted to some improvements and generalizations of the integral inequalities of the Bellman-Wendroff-Bihari type.
本文分两部分,第一部分是Bellman-Wendroff-Bihari型积分不等式的一些改进和推广。收藏指正
10.The company occupies a total area of over 40 acres, apart from possessing first-class production and advanced research facilities, the company maintains an integral marketing team and after-sales system.
公司占地面积40多亩，拥有一流的厂房设施、先进的研制装备，此外公司还拥有完整的营销队伍和售后服务体系。收藏指正
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