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Preparation and Characterization of Phosphorus Pentafluoride Gas for Lithium Ion Battery Electrolyte Salt

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Chemical Research in Chinese Universities 2009年第6期25卷 791-795页

作者： LIU Jian-wen LI Xin-hai wang Zhi-xing guo hua-jun HU Qi-yang School of Metallurgical Science and Engineering Central South University Changsha 410083 P. R. China

A novel preparation method of phosphorus pentafluoride（PF5） is introduced in details in the article. Phosphorus pentafluoride is mainly used to synthesize lithium ion battery electrolyte salt. In the experiment mesneproduct- hexafluorophosphoric acid（HPF6） was firstly prepared-from phosphorus pentoxide（P2O5） and anhydrous hydrogen fluoride（HF）, according to the chemical stoichiometrics, the optimum amount of excess HF used was about 60% and the optimum reaction time was 4 h; then HPF6 was dehydrated by oleum with an excess amount of 35%-- 40% which was heated for 40--50 min at 150 ℃; thus HPF6 was decomposed to a mixture of gases containing PF5; impurity gases were removed through condensation in the presence of cooling water at 0 ℃, then PF5 of high purity was eventually prepared. The production was characterized by inffared（IR） spectrometry and gas chromatography-mass spectroscopy-selected ion monitoring（GC-MS-SIM）. Eventual results indicate that PF5 prepared by the novel method has a high target purity and a low amount of impurity and water.

关键词： Hexafluorophosphoric acid Phosphorus pentafluoride Preparation lnfrared spectrum Gas chromatogra- phy-mass spectroscopy-selected ion monitoring

Solubility of wood-cellulose in LiCl/DMAC solvent system

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Forestry Studies in China 2007年第3期9卷 217-220页

作者： He Jing Liu Zhu Li hua-yang wang guo-hua Pu Jun-wen College of Materials Science and Technology Beijing Forestry University Beijing 100083 P. R. China

A LiC1/DMAC solvent system was used to dissolve wood-cellulose with aims to broaden its application in preparing functional materials of modified wood-cellulose. We studied the dissolubility complexion of wood-cellulose in a LiC1/DMAC solvent system, made sure of the important function of LiC1 in a cellulose solvent, and further confirmed its dissolution mechanism via the measurement of infrared spectra of soluble products. The study results are as follows： first, LiC1 salts, which can form intermediate complexes with cellulose, have played an important role in the LiC1/DMAC solvent system, and their solubility performance is en- hanced by reducing the hydrogen bond effect between cellulose molecules; second, the non-aqueous solvent system is a better method for dissolving wood-cellulose in homogenous phase. As found in infrared spectra, the absorption intensity of hydroxyl groups （broad peaks： 3,400 cm^-1） decreased greatly in cellulose macromolecules. This is because the degree of association between the hydroxyl groups of cellulose macromolecules is reduced, due to the destruction of the hydrogen bonds. Lastly, wood-cellulose can be dissolved in a LiC1/DMAC solvent thoroughly and efficiently, and can provide a better solvent system for homogeneous synthesis in the preparation of new functional materials via modified wood-cellulose.

关键词： wood-cellulose LiC1/DMAC homogeneous solution solubility

Establishment and preliminery use of hepatitis Bvirus preS1/2 antigen assay

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World Journal of Gastroenterology 1999年第6期5卷 550-552页

作者： CHEN Kun, HAN Bao Guang, MA Xian Kai, ZHANG He Qiu, MENG Li, wang guo hua, XIA Fang, SONG Xiao guo and LING Shi Gan 解放军军事医学科学院基础医学所北京

QTL Detection for Rice Grain Shape Using Chromosome Single Segment Substitution Lines

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Rice science 2011年第4期18卷 273-278页

作者： Sheng-qiang LI guo-kun CUI Cheng-ran GUAN Jun wang guo-hua LIANG Jiangsu Key Laboratory of Crop Genetics and Physiology / Key Laboratory of the Ministry of Education for Plant Functional Genomics Yangzhou University Yangzhou 225009 China

Rice grain shape is one of the important factors affecting grain quality and yield,but it is liable to be influenced by genetic backgrounds and *** chromosome single segment substitution lines(SSSLs) in rice have been considered as ideal populations to identify the quantitative trait loci(QTLs).In this study,22 QTLs affecting rice grain shape were detected to be distributed on eight chromosomes except chromosomes 6,9,11 and 12 by using *** them,seven QTLs conditioned grain length,six conditioned grain width,five affected grain length-width ratio and four controlled grain thickness.

关键词： rice single segment substitution line grain shape quantitative trait locus

A Method for Simultaneous Strain and Voltage to Measurement Using Fiber Bragg Gratings

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网络电信 2005年第12期7卷 50-53页

作者： Li-meng wang guo-hua Chen The 23rd Research institute China Electronics Technology Group Corporation Shanghai 200437 P.R.China

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王国华教授治疗多囊卵巢综合征用药规律探究

中国当代医药 2019年第22期26卷 157-159页

作者：赵洋王国华北京市朝阳区王四营社区卫生服务中心中医科北京100023 北京中医药大学第三附属医院妇科北京100029

目的探讨王国华教授治疗多囊卵巢综合征(PCOS)的用药规律。方法收集、整理王国华教授2015年1月~2018年1月于北京中医药大学第三附属医院门诊治疗PCOS的处方。结果共收集处方116首,中药159味,累计用药频次1206次。统计整理后显示,不同功... 详细信息

目的探讨王国华教授治疗多囊卵巢综合征(PCOS)的用药规律。方法收集、整理王国华教授2015年1月~2018年1月于北京中医药大学第三附属医院门诊治疗PCOS的处方。结果共收集处方116首,中药159味,累计用药频次1206次。统计整理后显示,不同功效药物频次最高者为补虚药(熟地黄、山茱萸、女贞子、当归、山药等),其次为理气药(香附、枳壳、陈皮等),再次为活血化瘀药(丹参、桃仁、红花等)。单味药频次最高者为当归、白术、柴胡等。在药物归经方面,大多归于肝、脾、肾三经。结论王国华教授治疗PCOS注重补肾,肝脾同调;治以益肾填精、疏肝理气、健脾化痰之法,能显著改善月经稀发、闭经或不孕等症状,疗效肯定。

关键词：王国华教授多囊卵巢综合征用药规律中医药

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周期性扰动对平板湍流边界层统计性质的影响

航空动力学报 2007年第9期22卷 1505-1511页

作者：王国华姜楠天津大学机械工程学院天津300072

用IFA300热线风速仪和X形二分量热线探针精细测量了平板湍流边界层在施加不同频率的周期性吹吸扰动前后不同法向位置的瞬时流向、法向速度分量的时间序列信号.在平板湍流边界层的固壁表面沿展向切割一条5 mm宽的窄缝,在平板底部用扬声... 详细信息

用IFA300热线风速仪和X形二分量热线探针精细测量了平板湍流边界层在施加不同频率的周期性吹吸扰动前后不同法向位置的瞬时流向、法向速度分量的时间序列信号.在平板湍流边界层的固壁表面沿展向切割一条5 mm宽的窄缝,在平板底部用扬声器从壁面向平板湍流边界层内施加不同频率的周期性吹吸扰动,研究不同频率的周期性扰动在平板湍流边界层内发展演化的规律及对平板湍流边界层统计性质的影响.

关键词：航空、航天推进系统周期性扰动平板湍流边界层热线测速

基于快速折叠算法和时频分析的LPI跳频信号截获

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电子与信息学报 2007年第7期29卷 1569-1572页

作者：王国华俞能海中国科学技术大学信息处理中心合肥230027

该文提出了一种新的低截获概率(LPI)跳频信号的截获方法,该方法基于快速折叠算法和时频分析。在低信噪比环境下,该方法能有效检测跳频信号;通过恰当地选择折叠周期范围和分辨率,能实现对跳频参数如跳频周期、跳变时刻和跳频频率的估计... 详细信息

该文提出了一种新的低截获概率(LPI)跳频信号的截获方法,该方法基于快速折叠算法和时频分析。在低信噪比环境下,该方法能有效检测跳频信号;通过恰当地选择折叠周期范围和分辨率,能实现对跳频参数如跳频周期、跳变时刻和跳频频率的估计。仿真结果和性能分析表明,该方法能有效截获信噪比为0dB的跳频信号,与自适应门限检测方法相比具有更好的性能。

关键词：低截获概率信号跳频信号平滑伪Wigner—Ville分布快速折叠算法

Treatment of Cerebral Apoplectic Pseudobulbar Palsy with Consciousness-Restoring & Obstruction-Clearing Needling Technique: A Report of 300 Cases

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Journal of Acupuncture and Tuina Science 2003年第5期1卷 24-26页

作者： JIANG Ge-li wang guo-hua wang Hong-yun HAN Chou-ping The 464th Hospital of PLA Tianjin 300381 China The 464th Hospital of PLA Tianjin 300381 China The 464th Hospital of PLA Tianjin 300381 China

Objective: To study the therapeutic effect of treating apoplectic pseudobulbar paralysis with ***: Consciousness-restoring & obstruction-clearing needling technique and points Fengchi (GB 20), Yifeng (TE 17), wangu (GB 12), Neiguan (PC 6), Shuigou (GV 26), Sanyinjiao (SP 6), Shanglianquan (Ex-HN), Jinjin (Ex-HN 12), Yuye (Ex-HN 13) and Baihui (GV 20) were selected to treat 300 cases of apoplectic pseudobulbar ***: Cure: 189 cases, marked effect: 71 cases, effective: 32 cases, no effect: 8 cases and the whole effective rate is 97.3%.Conclusion: Consciousness-restoring & obstruction-clearing needling technique is effective in treating apoplectic pseudobulbar paralysis. Key Words Cerebral Hemorrhage/complications - Hemiplegia - Acupuncture Therapy - Pseudobulbar Palsy - Cerebral Infarction/complications JIANG Ge-li, MD of acupuncture, senior consultant doctor, professor, engages in the theoretical study of psychosomatic medicine and clinical treatment method of hyperplastic spine arthrosis and apoplexy sequelae.Translator: HAN Chou-ping

关键词： Cerebral Hemorrhage/complications Hemiplegia Acupuncture Therapy Pseudobulbar Palsy Cerebral Infarction/complications