热传导的半导体设备的数学模型被四个方程的一个系统描述了。在 L2 标准的最佳的顺序估计在 approximates 答案为错误被导出，提出一种典型有限差别部分步方法。
The concepts of neural network and tree structure are introduced to rare earth separations. The recursive relations and analytical expression for calculating th
In the medium of H2O, C2H5OH and HAC, the reaction of Gd(NO3)3-6H2O with C6H5COONa and C12H8N2 produced a novel binuclear Gd(Ⅲ) complex in formula [Gd2(C12H8N2
A brown planthopper (BPH) resistance line, B5, derived its resistance genes from the wild rice Oryza offici-nalis Wall exwatt, was hybridized with Taichung Nati
本文意在揭示梯形与其他常见平面图形及其面积公式之间的联系,期望对读者有所启迪. 原题如图1,在梯形ABCD中,AB∥CD,设AB=a,CD=b,高为h,面积为S,则S=1/2(a+b)h.联想之一在图
A tet-off inducible cell line named BBT derived from BA/F3β cell line was constructed and the effect of this inducible expression system was significant when d
A microbionic and peristaltic robot that simulates the motion of an earthworm to move within a micropipe is proposed. The robot consists of three flexible units
Dating techniques including gypsum dissolution in water, iron hydroxide co-precipitation with uranium and thorium and mass spectrometric determination have been
The acids accumulating in soils and controlling the solution of carbonates including the predominant CO2, mostly derive from three processes: i) root respiratio
Mammalian cloning has been one of the most active research topics in the world. Cioning with in vitro culured foetal fibroblast cells, in comparison with embryo