A new conclusion is put forward,in which the smooth degree of the data row can be enhanced by means of the arc-hyperbolic sine function transformation.
提出了"利用反双曲正弦函数变换提高数据列光滑程度"的新结论,获得了递增时间序列改善的自回归预测新方法。
This paper proves that the smooth degree of a data row can be increased by transforming the counter-hyperbolic sine function.
证明了利用反双曲正弦函数变换能提高数据列的光滑程度,获得结论:设｛x_(k)｝为递增数据列,x_(1)>0,y(k)=ln(x_(k)+(x_(k)~2+1)~(1/2)),则数据列｛y_(k)｝比数据列｛x_(k)｝光滑。
When constructing an autoregressive model to predict according to time series data,in order to improve the veracity,one of the methods is to let the model be a linear onet,ransform the data row and increase the smooth degree of them.
已知时间序列资料,建立自回归模型进行预测时,为了提高预测的准确性,采取的途径之一是固定自回归模型为线性模型,对数据列进行变换,提高数据列的光滑程度。
The accuracy of grey forecasting model(GM)is increased by improving the smooth degree of original data sequence.
用提高原始数据列光滑度的方法来提高灰色预测模型(GM模型)的精度。
Its fitting precision is related to the smooth degree of modeling data sequence.
它的拟合精度与建模数据序列的光滑度有关。
It has been proved that the smooth degree of discrete data after this transformation can be enhanced.
提出了对建模数据进行幂函数x-a(a>0)变换,理论上证明这种变换可以有效地提高建模数据序列的光滑度和所建GM(1,1)模型的精度,而且其模型精度优于对数变换所建模型,从而大大拓宽了灰色模型的应用范围。
Let μ be a smooth measure with a quasi regular Dirichlet form, A μ be its non negative additive functional,and U α A μ be the α Potential operator of A μ.
设μ是拟正则狄氏型的光滑测度，Ａμ是其对应的非负连续可加泛函，ＵαＡμ是Ａμ的α位势算子，本文证明了测度μＵαＡμ关于μ的绝对连续性，并以Ｒ－Ｎ导数ｄμＵαＡμｄμ刻划了μ具有有限能量积分的条件。
optical flatness
光学光滑度;光学平度;光学平滑度;光学平直度
" Reflecting prisms--Optical axis, length of opticalaxis, axial section and optical parallelism"
GB/T7660.1-1987反射棱镜光轴、光轴长度、光轴截面与光学平行度
optically flat filter
光平面滤光片;光学扁平滤光器;光学平面滤光片
smoothness check
平滑[光滑]度检查
(2) Photographic term for the light reflected by the copy. Measured in cd/sq.cm.Also called Luminance.
（2） 照相光学名词。指从原稿反射的光线强度。以烛光每平方厘米计算。
fiber-optics spectrophotometer
纤维光学分光光度计
Chemical sensing can simply be achieved by transporting light to and from a measurement site with a plain fibre light guide for spectrophotometric or fluorimetry analysis.
利用平面光纤光导将光波传输到测定部位的化学传感技术可以进行光度和荧光分析。
Realization of Velocity Mode in Flat Optics Machining Using Ion Beam
光学平面镜面离子束修形中速度模式的实现
Flatness can be determined by covering a surface with an potically flat glass.
用一光学平面玻璃覆盖一个表面，可以测量平整度。
mean hemispherical intensity
平均半球面发光强度
mean lower hemispherical intensity
平均下半球面烛光度
visible absorption spectrophotometry
可见吸收分光光度学
ultraviolet absorption spectrophotometry
紫外吸收分光光度学
infrared microspectrophotometry
红外显微分光光度学
high sensitive laser spectroscopy
高灵敏度激光光谱学
Measure light intensity above and under the mangrove canopy by using the light meter.
用光照度计量度树冠上和树冠下的平均光照度。
Thermal Refractive Index Coefficients of Colorless Optical Glass and Equal Thickness Interference Fringe of Optical Flat
无色光学玻璃折射率温度系数与平晶等厚干涉条纹
High-precision and Super-smooth Fabrication of CVD SiC Flat Reflecting Mirror
化学气相沉积碳化硅平面反射镜的高精度超光滑加工