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《水盐体系相图》课程中相图应用实验设计——以三元体系(NaCl-KCl-H2O)相图分离NaCl和KCl为例
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作者 李栋婵 汪婧 郭晓甫 《中文科技期刊数据库(引文版)教育科学》 2022年第7期35-38,共4页
针对普通高等院校《水盐体系相图》课程的内容、特点及要求,阐述了其对应实验课程开设的意义以及课程设置的具体标准,并以多温下三元体系(NaCl-KCl-H2O)相图分离NaCl和KCl为例,探讨和研究了《水盐体系相图及其应用》实验课程体系,通过... 针对普通高等院校《水盐体系相图》课程的内容、特点及要求,阐述了其对应实验课程开设的意义以及课程设置的具体标准,并以多温下三元体系(NaCl-KCl-H2O)相图分离NaCl和KCl为例,探讨和研究了《水盐体系相图及其应用》实验课程体系,通过相图分析,制定工艺路线,掌握相图应用实验方法,为培养"工学并举"的专业综合应用型人才打下基础。 展开更多
关键词 水盐体系相图实验课程 相图应用实验 盐类分离 生产工艺
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Origin软件在物理化学相平衡教学中的应用 被引量:9
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作者 吴琼 《化工高等教育》 2017年第3期85-88,共4页
本文以单组分水的相图和二组分水-盐系统的相图为例,介绍了Origin软件的数据制图和数据分析功能在物理化学相平衡教学中的应用。
关键词 ORIGIN软件 相图绘制 相图应用
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硫酸镁亚型盐田卤水低温冷冻结晶规律的研究 被引量:5
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作者 谢绍雷 张超 +2 位作者 纪律 陈高琪 景燕 《无机盐工业》 CAS 北大核心 2015年第2期35-38,共4页
针对青海大浪滩盐湖区盐田卤水做了低温冷冻结晶规律的研究,该盐湖区为典型的硫酸镁亚型卤水,研究了其在低温冷冻时卤水的物理性质变化及析盐结晶规律。结果表明,该盐田卤水在-16~0℃低温冷冻时析盐顺序为Mg SO4·7H2O→Mg SO4·... 针对青海大浪滩盐湖区盐田卤水做了低温冷冻结晶规律的研究,该盐湖区为典型的硫酸镁亚型卤水,研究了其在低温冷冻时卤水的物理性质变化及析盐结晶规律。结果表明,该盐田卤水在-16~0℃低温冷冻时析盐顺序为Mg SO4·7H2O→Mg SO4·6H2O→Na2SO4·3K2SO4。通过对不同温度下的液相组分分析和固相X射线衍射分析表明,利用冷冻方式开采此卤水时,最适宜的冷冻温度应控制在-8℃左右。此时,该卤水组成中SO42-的质量分数低于2%,可以简化为Na+,K+,Mg2+∥Cl-—H2O四元体系,以便达到开采氯化钾的工艺需求,为该盐湖卤水的综合开发利用提供理论依据。 展开更多
关键词 硫酸镁亚型卤水 低温冷冻 析盐规律 相图应用
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Diagrammatic Representation of Electronic Correlations in Photoionization Process: Application to Scandium
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作者 刘萌萌 马晓光 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第8期312-316,共5页
The conversion rules under which an algebraic expression can be obtained from a corresponding photoionizationGoldstone diagram have been given systematically in the present work.The electronic correlations in thephoto... The conversion rules under which an algebraic expression can be obtained from a corresponding photoionizationGoldstone diagram have been given systematically in the present work.The electronic correlations in thephotoionization processes then could be studied diagrammatically.The application to atomic scandium shows that thepresent theoretical scheme can give reasonable photoionization cross sections,which agree well with the experimentalresults. 展开更多
关键词 PHOTOIONIZATION electronic correlation SCANDIUM
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Golay Sequence Based Time-Domain Compensation of Frequency-Dependent I/Q Imbalance 被引量:1
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作者 CHEN Lei LUO Zhigang +1 位作者 CHENG Xiantao LI Shaoqian 《China Communications》 SCIE CSCD 2014年第6期1-11,共11页
A time-domain frequencydependent I/Q imbalance compensation scheme based on Golay complementary sequence for receiver is presented. By utilizing property of Golay sequence, the signal and its conjugate interference(im... A time-domain frequencydependent I/Q imbalance compensation scheme based on Golay complementary sequence for receiver is presented. By utilizing property of Golay sequence, the signal and its conjugate interference(image interference)in preamble are separated by correlation and used to estimate I/Q imbalance parameters.After that, a Least Square(LS) estimation of compensation filter is obtained and adopted in the compensation structure. Two applications of the presented algorithm are discussed: we could either estimate the channel along with I/Q imbalance or estimate the imbalance parameter only to maintain a lower cost. Both applications are testified by simulation. The results show that the image interference is significantly suppressed even in poor SNR condition, and the computation cost of the algorithms is low. 展开更多
关键词 wireless communication I/Qimbalance time-domain compensation golaysequence
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Research on assessing compression quality taking into account the space-borne remote sensing images
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作者 赫华颖 Zeng Yong Wang Wenyu 《High Technology Letters》 EI CAS 2015年第1期109-117,共9页
According to the remote sensing image characteristics, a set oi optimized compression quahty assessment methods is proposed on the basis of generating simulative images. Firstly, a means is put forward that generates ... According to the remote sensing image characteristics, a set oi optimized compression quahty assessment methods is proposed on the basis of generating simulative images. Firstly, a means is put forward that generates simulative images by scanning aerial films taking into account the space-borne remote sensing camera characteristics (including pixel resolution, histogram dynamic range and quantization). In the course of compression quality assessment, the objective assessment considers images texture changes and mutual relationship between simulative images and decompressed ima- ges, while the synthesized estimation factor (SEF) is brought out innovatively for the first time. Subjective assessment adopts a display setup -- 0.5mrn/pixel, which considers human visual char- acteristic and mainstream monitor. The set of methods are applied in compression plan design of panchromatic camera loaded on ZY-1-02C satellite. Through systematic and comprehensive assess- ment, simulation results show that image compression quality with the compression ratio of d:l can meet the remote sensing application requirements. 展开更多
关键词 remote sensing images compression images quality assessment blocking standard variance synthesized estimation factor (SEF) images display
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Weak Finite Determinacy of Relative Map-Germs 被引量:2
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作者 Changmei SHI Donghe PEI 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2014年第6期991-1000,共10页
The weak finite determinacy of relative map-germs is studied. The authors first give the concept of weak finite determination, and then give several sufficient conditions for a relative map-germ to be weak finitely de... The weak finite determinacy of relative map-germs is studied. The authors first give the concept of weak finite determination, and then give several sufficient conditions for a relative map-germ to be weak finitely determined, which is an important complement to Mather's work. Moreover, us an application, it is proven that the relative stable map-germs are weak finitely determined. 展开更多
关键词 Relative map-germs Weak finite determinacy Relative stability
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