本文报道了测定生物陶瓷的生物活性的FT - IR差谱方法。
A method of studying biological activity of bioceramics by FTIR difference spectra technique was reported.
对利用差谱—二阶导数分光光度法直接测定强干扰基体中微量组分的原理和实验方法进行了探讨。
A new method for determining directly trace component in interfering base by absorbance subtraction -second derivative spectrophotometry is proposed.
此方法回避了多维谱峰搜索和参数配对，克服了在短数据时离散傅立叶变换测频分辨率低和性能差的不足。
Without any spectral peak search and parameters pairing, the resulting method is computationally efficient with high resolution and small variance, even in the short data length.
伪谱法利用傅立叶变换和有限差分求解波动方程，是三维波场正演模拟的重要方法之一。
The pseudo-spectrum method uses Fourier transform and finite difference to solve wave equation. It is one of the important methods used to simulate the seismic wave field.
本文基于谱问题的特点利用直接方法导出了1 + 1、2 + 1维微分—差分方程的无穷多守恒律。
In this paper, we derived the conservation laws of 1 + 1, 2 + 1 dimensional differential-difference equations on the base of discrete spectral problems through a direct method.
介绍了利用双光路差分吸收光谱(DOAS)技术监测大气气溶胶并反演其粒谱分布的新方法。
With the method of differential optical absorption spectroscopy (DOAS), aerosol along the light path is monitored and its size distribution is measured with double optical path method.
并在原实验装置的基础上，利用信号差分方法减少了光强波动对实验干涉谱图的影响，改善了信噪比。
Based on our previous setup, a signal differential module is introduced to reduce the noise rising from the fluctuation of the laser power to improve the quality of the experimental interferogram.
用差示扫描量热计（DSC）及正电子湮没寿命谱（PALS）方法表征了两种不同物理老化条件试样的凝聚结构以及自由体积的差别。
The free volume and cohensional entanglement structure of samples preapared under two different thermal conditions were measured by positron annihilation life spectroscopy (PALS) and DSC.
建立盐酸吡哆辛及其制剂的二阶导数差示脉冲极谱定量分析方法。
A method for the quantitative analysis of the pyridoxine hydrochloride and its preparation were...
介绍进行残气质谱分析的目的，方法和采用的差分抽气质谱分析系统； 给出装置调试过程中常温和低温状态下残气谱图；
The aim and the method of mass spectrum analysis for residual gas and the differential pumping system, meanwhile, are introduced.
根据人类视觉系统的特点，提出一种融合谱残差和多分辨率分析的显著目标检测方法。
According to the characteristics of human visual system, a salient object detection method based on spectral residual and multi-resolution is proposed.
方法二阶导数差示脉冲极谱法。
METHODS The Secondary derivative differential pulse polarography was developed.
方法二阶导数差示脉冲极谱法。
METHODS The Secondary derivative differential pulse polarography was developed.
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