1)  Shenk's algorithm
Shenk s算法
2)  SH
SH
1.
重金属离子对鲫蛋白ATPase活性和SH基总量的影响;
重金属离子对鲫蛋白ATPase活性和SH基总量的影响
2.
STRENGTH CHARACTERISTICS OF SAND FIXATED BY SH;
SH固沙剂固化沙体的强度特征
3.
Distinguish zh, ch, sh from z, c, s Respectively with the Rule of Pronunciation Variation between Ancient and Modern Times;
利用古今音变规律分辨zh、ch、sh和z、c、s
3)  SK N SH cell
SH-N-SH
4)  SH waves
SH波
1.
SH waves in laminated structure of functionally gradient piezoelectric material;
功能梯度压电材料层状结构中的SH波
2.
The characteristics of the lowest model SH waves propagating on the "sandwich" structure had been given by analyzing the dispersion equations of SH waves propagating on the structure.
建立了粘接界面层多孔隙缺陷微观结构的界面数理模型,推导了横波(SH波)在“三明治”结构传播的频散方程,对最低模式的SH波在带有多孔隙缺陷界面的双层板粘接结构的传播特性进行数值计算分析。
3.
An analytical solution for 2-D scattering of plane SH waves by a circular-arc layered canyon is derived by Fourier-Bessel expansion technique, and the effects of alluvial sequence, stiffness and thickness of the soft alluvium are discussed.
利用 Fourier- Bessel级数展开法给出了圆弧形层状凹陷地形对平面 SH波散射二维问题的一个解析解 ,分析了层状凹陷地形沉积排列顺序、软夹层刚度和厚度等因素对 SH波散射的影响。
5)  SH wave
SH波
1.
Scattering of SH wave by a rigid line terminating at the interface of a bi-material;
和界面接触的刚性线夹杂对SH波的散射
2.
A study on hemispherical canyon SH wave dispersion;
半球形峡谷对SH波散射问题的初步研究
3.
Dynamic stresses concentration of SH wave by cavity with lining in infinite soil;
SH波对无限介质土中衬砌结构的动应力集中
6)  mercapto group
SH基
1.
The major causes of off-flavour of the cooked rice was due the intractions among rice proteins, lipids and carbohydrates, which result in the production of carbonyl compounds,the increase of caproaldehyde,and the decrease of acetaldehyde and mercapto group as well as the changes in the cell wall structures.
本文结合近几年研究工作及国内外对大米陈化研究的新进展,综合阐述了随大米存放时间的延长,其化学组织特别是大米蛋白质、类脂与淀粉的共同作用,促使羰基化合物的生成、乙醛减少、己醛增加、SH基减少,以及胞壁改变,是造成大米陈化、米饭“陈米臭”的主因。
参考词条
补充资料:BP算法
分子式:
CAS号:

性质:又称逆推学习算法,简称BP算法,是1986年鲁梅哈特(D. E. Rumelhart)和麦克莱朗德(J. L. McClelland)提出来的。用样本数据训练人工神经网络(一种模仿人脑的信息处理系统),它自动地将实际输出值和期望值进行比较,得到误差信号,再根据误差信号从后(输出层)向前(输入层)逐层反传,调节各神经层神经元之间的连接权重,直至误差减至满足要求为止。反向传播算法的主要特征是中间层能对输出层反传过来的误差进行学习。这种算法不能保证训练期间实现全局误差最小,但可以实现局部误差最小。BP算法在图像处理、语音处理、优化等领域得到应用。

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