Pdm is utilized to forecast the non - crystal phenomena in the sintering process and study the effect of non - crystal on the process of sintering 因此采用超化学计量uo _ ( 2 + x )坯块是实现低温烧结的必要条件。
The relation of light intensity and the domain switching voltage of the near - stoichiometric mg - doped lithium niobate was studied 摘要研究了在可见光诱导条件下的近化学计量比掺镁铌酸锂的反转电压与光强之间的关系。
Its architecture is making up of three nonlinear working modules : chromatographic module , chemometrics module and database module respectively 其架构由色谱处理模块、化学计量学模块和数据库模块共3个非线性工作模块组成。
Abstract : the principle of determining parameters of children high calcium milk powder ( chcmp ) by near infrared spectra method is studied 资料简介：摘要从化学计量学角度研究了近红外光谱技术测定儿童高钙奶粉理化指标的原理。
The result shows that the mixtures could be recognized effectively by near infrared specscopy with help of chemometrics 本文利用化学计量学方法研究了题示物质的近红外吸收光谱，结果表明，采用近红外光谱分析技术能够有效识别三元混合物。
However , the material undergoes large departures from stoichiometry at elevated temperatures in a reducing atomsphere with accompanying electronic conductivity 但是，在高温还原气氛下，这种材料的化学计量比将发生较大偏移，并伴随有电子电导。
Orthogonal signal correction ( osc ) is provided a novel spectral pre - processing method in recent years , which is based on the orthogonal projection 基于正交信号投影分解的正交信号校正( osc )方法，是近年来在化学计量学领域中提出的一种全新数据预处理方法。
Abstract : the mechanical metrology investigation situation about going to nist of the usa and canada and so on presented . some experiences are superficially discussed 文摘:介绍了赴美国国家标准与技术研究院、加拿大国家研究院等单位对化学计量进行考察的情况，浅谈了几点体会。
Traditional piezoelectric ceramics give off pb vapor in the preparation . the evaporation of pb caused not only deviation of the composition of ceramic but also the pollution to environment 传统的压电陶瓷在制备过程中存在着铅的挥发，不仅使陶瓷的化学计量比偏离，还会对环境造成污染。
Furthermore , since mg had great evaporation ability and the total evaporation amount of mg metal was accessing to the amount of dopants , it must be taken into account when the raw powders were weighted 同时由于mg极易蒸发，其蒸发量与掺杂元素的含量相当，只要控制样品配料时考虑蒸发的mg ，就可以保证产物的化学计量。
