1) blow-up rate
爆破率
1.
The existence theorem of blow-up solutions,the upper bound of "blow-up time",and the upper estimate of "blow-up rate" are given under some suitable assumptions on g,f and initial data.
运用Hopf极值原理讨论了一类具Dirichlet边界条件的半线性抛物方程ut=(g(x)u)+f(x,u,q,t)(q=|u|2)的爆破问题,在对函数f,g和初值作适当的假设之下,给出了爆破解的存在性定理和“爆破时刻”的上界估计及“爆破率”的上估计。
2.
By constructing an auxiliary function and using Hopf s maximum principles on it,existence theorems of blow-up solutions,upper bound of"blow-up time,"and upper estimates of "blow-up rate" were got respectively under suitable assumptions on f,g and initial function u\-0(x).
运用辅助函数法和 Hopf极值原理讨论了一类具有非齐次 Neumann边界条件 u/ n=g(x,t)的半线性抛物方程 u,t=Δ u+f (u)的爆破解 ,在对函数 f ,g和初值作适当的假设之下 ,给出了爆破解的存在性定理和“爆破时刻”的上界估计及“爆破率”的上估计 。
3.
The blow-up rate is determined with the blow-up set,and the blow-up profile near the blow-up time is obtained.
研究了一类带有内部吸收项以及边界条件为指数形式的反应扩散方程解的性质,得到了爆破集,爆破率以及临近爆破时间的爆破行为。
2) Blasting efficiency
爆破效率
1.
Based on the roadway section and the constructing condition,the test of roadway excavation through hard rock improves the technology of blasting by stages in straight hole gate excavation,and centralizing on the effect of gate excavation,optimizes the related working procedure;not only boosts the blasting efficiency and cycle advance,but also reduces the consumption of materials and supplies.
根据巷道断面和施工条件,在坚硬岩石中的掘进试验,完善了直眼掏槽的分次爆破工艺,并以力求掏槽效果为中心,优化改进了相关作业工序;不但提高了爆破效率,增加了循环进尺,同时节约了材料消耗。
2.
Through application of this technique in tunneling of hard rock, the blasting efficiency is improved.
文中详细介绍了五角空心掏槽技术的参数布置及技术要求，通过采用此技术在硬岩石中进行掘进实践，使爆破效率提高，对提高硬岩石的掘进效率具有一定的参考价值。
3.
The blasting efficiency of rock roadway construction was raised.
鸡西矿业集团建设工程公司近年来推广应用直眼掏槽爆破技术,提高了岩石巷道施工的爆破效率,增加了循环进尺,平均循环进尺由1。
3) Blast frequency
爆破频率
4) blow-up rate
爆破速率
1.
This paper,in which the blow-up rate of the blowup solutions is evaluated with appropriate hypotheses,considers the blow-up rate of a degenerate reaction-diffusion system with homogeneous Dirichlet boundary conditions.
文中考虑了一类退化反应扩散系统在齐次D irichlet边界条件下的爆破速率。
2.
We use the maximal principle to analyse the derivative profiles of the solution and get the lower bounds and upper bounds of blow-up rate through the complicated analysis technology and .
基于最大值原理的比较理论,通过一些特定的参数关系,利用相关常微分方程的解构造合适的爆破形式的下解,由此得到退化反应系统初边值问题的爆破解;然后,对爆破解的性质进行进一步的研究,利用极大值原理对解的导数特性进行了分析,给出了解的爆破速率的上、下界估计。
3.
Deal with a reaction-diffusion system with nonlinear coupled boundary flux,they establish the blow-up and global existence conditions together with the blow-up rate.
考虑一类具有非线性耦合边界流的扩散系统,得到了解在有限时间爆破和整体存在的条件以及解的爆破速率。
5) blow-up rates
爆破速率
1.
In this paper,we consider a semilinear parabolic system,and deal with the blow-up estimates of the position solution with the Scaling method,Green fuction and Schauder estimates,yielding the upper and lower bounds of blow-up rates.
考虑一个方程和非线性边界条件耦合的半线性抛物型方程组,运用Scaling方法、Green函数、Schauder估计等方法,研究该方程组解的爆破速率,并给出非线性反应项和吸收项对爆破速率的影响。
2.
The conditions of simultaneous blow-up,blow-up rates and blow-up set are given.
研究了如下方程组的Cauchy问题:ut=Δu+up1(x0(t),t)vq1(x0(t),t),vt=Δv+up2(x0(t),t)vq2(x0(t),t),u(x,0)=u0(x),v(x,0)=v0(x),其中x0:R+→RN是H lder连续函数,给出了非负爆破解同时爆破的条件,得到了其爆破速率和爆破集。
6) blow up rate
爆破速率
1.
This paper considered the blow up rate for a local reaction-diffuion systems.
考虑一类局部反应扩散方程组的爆破速率估计。
补充资料：电导率(见电阻率)
电导率(见电阻率)
conductivity
d!日nd日O}已电导率(eonduetivity)见电阻率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条