This review introduces the basic principle of molecular imprinting technique and summarizes its application in sample pretreatment including molecularly imprinted solid phase extraction , molecularly imprinted solid - phase microextraction and molecularly imprinted membrane separation technique 本文介绍了分子印迹技术的基本原理,综述了分子印迹技术在样品前处理中应用的研究进展。
This paper introduces several separation technologies for alcohol - water system , which include not only traditional azeotropic distillation and extraction distillation , but also new membrane separation techniques , such as membrane distillation , pervaporation and membrane contactor 摘要主要介绍了醇水体系分离的几种工艺和新方法,其中包括传统的恒沸精馏和萃取精馏等主流工艺,以及膜蒸馏、渗透汽化和膜接触器等新型膜分离技术。
Application of membrane separation technique could improve the quality of refined oil and soybean protein isolate , prevent producing alkali washed wastewater , and high quality soybean lecithin , lysophosphatide and soybean oligosaccharide were obtained 膜技术的应用提高了精炼油、分离蛋白的品质,杜绝了碱炼废水的产生,治理了乳清废水达标排放的问题,同时得到了高品质的大豆磷脂、溶血磷脂及副产物大豆低聚糖等,为大豆精深加工膜技术产业化奠定了基础。
As to the polyreference implemention of the least - squares complex frequency - domain estimator in mathematical separation technique of modes , this thesis builds a right matrix - fraction description model to estimate the system poles . then frequency point stabilization diagram is set up and analyzed to automatically determine natural frequencies , modal damping ratios and modal participation factors . finally mode shapes are identified based on the least squares theory 对于模态数学分离技术的多参考点最小二乘复频域识别技术,先建立右矩阵分式频响模型,识别出系统极点,再通过建立和分析频率点稳态图,能自动的确定出结构的固有频率、模态阻尼比和模态参与因子,最后根据最小二乘原理识别出模态振型向量。
The dual standard quantity ( the work piece and the discrete standard quantity ) mutual measuring and model verification methods are also proposed , which perfects the whole modifying process from data measuring , error separation , model establishment to real correction . after researching the discrete standard quantity system dynamic error separation technique , two error correction methods based on genetic algorithm and neural network mixed modeling technique are established . the two methods are the discrete standard quantity dynamic error direct / synchronous correction and prediction model correction ; the model ' s parameters and model ' s exercising method are also confirmed 设计了双标准量值(工件和离散标准量)互比测量的模型验证方法,完善了从数据测量、误差分离、模型建立到实际修正的整个修正过程;研究了离散标准量系统动态误差分离技术,建立了基于遗传进化算法与神经网络混合建模技术的两种误差修正方法? ?离散标准量动态误差直接(同步)修正方法和预报模型修正方法,并确定了模型结构参数和模型训练方法;分析了预报模型的多次预报性质,并得出了多次预报与多步预报的等效关系,确定了测量系统的有效预报范围以及模型参数对泛化误差的影响;进行了模型的对比实验验证和被测工件动态误差修正试验,成功地实现了任意二面角和圆分度的实时误差修正。