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Group separation and analysis of a carbon disulfide-soluble fraction from Shenfu coal by column chromatography

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Journal of China University of Mining and Technology 2008年第1期18卷 27-32页

作者： DING ming-jie zong Zhi-min zong Ying OUyanG Xiao-dong HUANG yao-guo ZHOU Lei ZHENG Yu-xuan ZHOU Xiao WEI yan-bin WEI Xian-yong School of Chemical Engineering and Technology China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China Department of Light Industry Luohe Vocational Technology College Luohe Henan 462002 China Key Laboratory of Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan Hubei 430081 China

A carbon disulfide-soluble fraction (CDSSF) from Shenfu coal was separated into five fractions by silica-gel column chromatography using hexane and n-hexane/ethyl acetate binary eluent. The five fractions include four clear group fractions and a nonpolar fraction. All the fractions were analyzed by GC/MS. A total of 204 compounds were detected from the original CDSSF and its further separated fractions, with 173 compounds more than those detected by studying the original CDSSF directly. The results demonstrate a clear group separation by column chromatography in coal organic components and a more accessibility to coal components compared with the solvent extraction only.

关键词： group separation column chromatography coal

Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

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Chinese Journal of Chemical Engineering 2019年第8期27卷 1837-1845页

作者： Peilong Li Li guo Renjin Xiong Junhong Luo ming Wen yong yao Zhi Zhang Jiangfeng Song yan Shi Tao Tang Institute of Materials China Academy of Engineering Physics

The liquid phase catalytic exchange(LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum catalysts(Pt/C/PTFE) with high efficiency as reported previously for LPCE were prepared and comprehensive performance evaluation method is applied to evaluate the separation behaviors of LPCE systematically. Experimental results indicate that the optimum reaction temperature of 60–80℃ and the molar feed ratio G/L of 1.5–2.5 would lead to higher separation efficiencies. As to the packing method, a random packing mode with a packing ratio of hydrophobic catalysts 0.25 is recommended. In addition, thermodynamic analysis corresponds well with experimental results under lower temperature and G/L, while the suppression of kinetic factors should not be neglected when T > 80℃ and G/L > 1.5.

关键词： Liquid phase catalytic exchange(LPCE) Hydrophobic carbon-supported platinum catalysts Separation behaviors Optimal operating condition Water detritiation

In situ Molecular Self-assembly and Sensitive Label-free Detection of Streptavidin via a Wavelength Interrogated Surface Plasmon Resonance Sensor

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Chemical Research in Chinese Universities 2013年第6期29卷 1219-1224页

作者： YU yong-jiang ZHOU Ying LI Qiu-shun yanG yan SHI Jian-guo LI ming-yu yao Wei-guo WANG Jun-nan DONG Wen-fei QI Zhi-mei State Key Laboratory on Integrated Optoelectronics College of Integrated OptoelectronicsJilin University Changchun 130012 P.R.China Key Biosensor Laboratory of Shandong Province Biology Institute of Shandong Academy of SciencesJinan 250014 P.R.China State Key Laboratory of Modern Optical Instrumentation Zhejiang University Hangzhou 310027 P.R.China Key Laboratory of Automobile Materials Ministry of Education Department of Materials Science and EngineeringJilin University Changchun 130025 P.R.China The Second Hospital of Jilin University Changehun 130041 P. R. China State Key Laboratory of Transducer Technology Institute of Electronics Chinese Academy of Sciences Beijing 100190 P. R. China

The sensing sensitivity of wavelength interrogated surface plasmon resonance（WISPR） biosensor is improved by self-assembly of polyelectrolyte multilayer（PEM） film of poly（allylamine hydrochloride）（PAH）/ poly（sodium-p-styrenesulfonate）（PSS） on the Au film coated glass chip via the layer-by-layer（LBL） technique. The home-made WISPR with Krestchmann configuration consists of a tungsten-halogen lamp as a photon source and a charge coupled device（CCD） camera as the detector. The influence of PEM film thickness on the optical properties of WISPR biosensors was investigated theoretically and experimentally. In order to achieve higher sensing sensitivity, the PEM film thickness has to be designed as ca.14 nm at an Au layer thickness of 50 nm and an incidental angle of 11.8°. Furthermore, the PEM coated WISPR biosensor can serve as highly sensitive biosensor, in which the biotin-streptavidin is used as bioconjugate pair. After deposition of the PEM film of （biotin/PAH）（PSS/PAH）3, the modified WISPR biosensor is more sensitive to the low concentration（〈0.01 mg/mL） of streptavidin. And the sensing sensitivity can be further increased by one order of magnitude compared with that of the biotin/PAH coated WISPR biosensor. Thus, such low-cost, high-performance and efficient PEM-coated WISPR biosensors have great potentials in a diverse array of fields such as medical diagnostics, drug screening, food safety analysis, environmental monitoring, and homeland security.

关键词： Polyelectrolyte multilayer Sensing sensitivity Biosensor Wavelength interrogated surface plasmon resonance

X-ray emission for Ar^(11+)ions impacting on various targets in the collisions near the Bohr velocity

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Chinese Physics B 2021年第8期30卷 312-316页

作者： Xian-ming Zhou Jing Wei Rui Cheng yan-Hong Chen Ce-Xiang Mei Li-Xia Zeng Chang-Hui Liang yao-zong Li yong-Tao Zhao Xiao-An Zhang Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and Institute of Modern Physics of CAS Xianyang Normal UniversityXianyang 712000China School of Science Xi'an Jiaotong UniversityXi'an 710049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

X-ray emission from the collisions of 3 MeV Ar^(11+)ions with V,Fe,Co,Ni,Cu,and Zn is *** the x-rays of the target atom and projectile are observed *** x-ray yield is extracted from the original *** inner-shell ionization cross section is estimated by the binary encounter approximation model and compared with the experimental *** remarkable result is that the Ar K-shell x-ray yield is diminished with the target atomic number increasing,which is completely opposite to the theoretical *** is interpreted by the competitive consumption of the energy loss for the ionization of inner-shell electrons between the projectile and target atom.

关键词： ion-atom collision near Bohr velocity x-ray coulomb ionization

Safety profile of 0.0015%tafluprost eye drops in China:a post-marketing observational study

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International Journal of Ophthalmology(English edition) 2023年第1期16卷 108-114页

作者： Xue-Li Chen yan-Jing Fu Bo Qu Ye-Wei Wang Xin Tang Yu-Hong Wang guo-Yi Zhou ming-Kai Lin Jing-Yuan Shen Jin yao Su-yan Li Miao-Qin Wu Hua-zong Peng ming-Ying Lai Ren-Yi Wu Yi-Nong Zhang yan Li Xiao-Jun Wu ming-Chang Zhang Su-Ping guo Xing-Huai Sun Department of Ophthalmology Eye&ENT Hospital of Fudan UniversityShanghai 200000China Department of Ophthalmology Daqing Ophthalmologic HospitalDaqing 163000Heilongjiang ProvinceChina Department of Ophthalmology the Fourth Affiliated Hospital of China Medical UniversityShenyang 110000Liaoning ProvinceChina Department of Ophthalmology Da Lian He Eye Specialist HospitalDalian 116000Liaoning ProvinceChina Department of Ophthalmology Beijing Tongren HospitalBeijing 100000China Department of Ophthalmology Xiamen Eye Center of Xiamen UniversityXiamen 361000Fujian ProvinceChina Department of Ophthalmology Yueqing People’s HospitalWenzhou 325600Zhejiang ProvinceChina Department of Glaucoma Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510000Guangdong ProvinceChina Department of Ophthalmology Shengzhou Shen’s Eye HospitalShaoxing 312400Zhejiang ProvinceChina Department of Ophthalmology the Affiliated Eye Hospital of Nanjing Medical UniversityNanjing 210000Jiangsu ProvinceChina Department of Ophthalmology Xuzhou No.1 Peoples HospitalXuzhou 221000Jiangsu ProvinceChina Department of Ophthalmology Zhejiang Provincial People’s HospitalHangzhou 310000Zhejiang ProvinceChina Department of Ophthalmology Wuhan Eyegood Ophthalmic HospitalWuhan 430014Hubei ProvinceChina Department of Ophthalmology Shenzhen Eye HospitalShenzhen 518001Guangdong ProvinceChina Department of Glaucoma Shanghai Heping Eye HospitalShanghai 200000China Department of Ophthalmology Wuxi Second People’s HospitalWuxi 214000Jiangsu ProvinceChina Department of Ophthalmology First Affiliated Hospital of Kunming Medical UniversityKunming 650000Yunnan ProvinceChina Department of Ophthalmology Union Shenzhen Hospital(Nanshan Hospital)Shenzhen 518000Guangdong ProvinceChina Department of Ophthalmology Wuhan Union HospitalWuhan 430000Hubei ProvinceChina Department of Ophthalmology Shengyang He Eye Specialist HospitalShenyang 110000Liaoning ProvinceChina

AIM:To investigate the treatment pattern and safety of tafluprost for glaucoma and ocular hypertension(OH)in clinical practice in ***:This post-marketing observational study included patients who received tafluprost to lower intraocular pressure(IOP)within 30d between September 2017 and March 2020 in 20 hospitals in *** drug reactions(ADRs)during tafluprost treatment and within 30d after the treatment were ***:A total of 2544 patients were included in this study,of them 58.5%(1488/2544)had primary open angle glaucoma(POAG),21.9%(556/2544)had OH and 19.7%(500/2544)used tafluprost for other *** 359 ADRs occurred in 10.1%(258/2544)patients,and no serious adverse event *** most common ADR was conjunctival hyperemia(128 ADRs in 124 patients,4.9%).Totally 1670 participants(65.6%)combined tafluprost with carbonic anhydrase inhibitors(CAIs;37.1%,620/1670),sympathomimetics(33.5%,559/1670),β-blockers(33.2%,555/1670),other prostaglandin analogs(PGAs;15.6%,260/1670)and other eye drops(15.1%,253/1670).The highest incidence of conjunctival hyperemia was noted in patients who received tafluprost in combination with other PGAs(23 ADRs in 23 patients,8.8%,23/260)and the lowest was in combination with CAIs(16 ADRs in 16 patients,2.6%,16/620).Tafluprost was applied in primary angle-closure glaucoma(41.6%,208/500),after glaucoma surgery(17.8%,89/500)and after non-glaucoma surgery(15.8%,79/500).CONCLUSION:Tafluprost is safe for POAG and OH,and tolerable when combined with other eye drops and under various clinical circumstances.

关键词： tafluprost glaucoma ocular hypertension intraocular pressure adverse drug reactions

The mRNA expression patterns of tumor necrosis factor-a and TNFR-I in some vital organs after thermal injury

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World Journal of Gastroenterology 2003年第5期9卷 1038-1044页

作者： Wen-Hui Fang yong-ming yao Zhi-guo Shi yan Yu Ye Wu Lian-Rong Lu Zhi-yong Sheng Department of Microbiology and Immunology,Burns Institute,304th Hospital of PLA,Beijing 100037,China Hosp PLA 304th Burns Inst Dept Microbiol & Immunol Beijing 100037 Peoples R China

AIM: To investigate changes of tumor necrosis factor-α (TNFα) and TNFR-Ⅰ expression in vital organs and their significance in the pathogenesis of multiple organ damage associated with endogenous endotoxin following major ***: Wistar rats subjected to a 35 % full-thickness scald injury were sacrificed at 12 h, 24 h, 48 h, and 72 h postburn, respectively. Meanwhile, eight rats were taken as normal controls. Tissue samples from liver, spleen, kidney,lung and intestine were collected to assay tissue endotoxin levels and measure TNF-α and TNFR-Ⅰ expression, In addition, blood samples were obtained for the determination of organ function ***: Endotoxin levels in liver, spleen and lung increased markedly after thermal injury, with the highest level in liver. The gene expression of TNF-α in liver, lung and kidney was up-regulated after thermal injury, while the TNFR-Ⅰ mRNA expression in liver, lung, kidney and intestine was shown decreased throughout the observation period. Thus, the mRNA expression ratio of TNF-α to TNFRⅠ was significantly increased postburn, particularly in pulmonary tissue (67-fold). In addition, the significant correlations between the expression of TNFR-Ⅰ or the expression ratio of TNF-α/TNFR mRNA in liver tissue and serum aspartate aminotransferase levels were noted (P ＜0.05-0.01). Similar results were also obtained between pulmonary TNF-α mRNA expression and myeloperoxidase activities (P＜0.01), whereas there was a highly negative correlation between levels of renal TNFR-Ⅰ mRNA expression and serum ***: Burn injury could result in the translocation of gut-derived endotoxin that was mainly distributed in the liver, spleen and lung. The translocated endotoxin then made the expression of TNF-α and TNFR-Ⅰ mRNA up-regulated and down-regulated respectively in various organs, which might be involved in the pathogenesis of multiple organ damage following burns.

关键词：肿瘤坏死因子-α 受体热损伤 mRNA 烧伤细胞因子炎症动物实验

Reactivities of Shenfu Chars Toward Gasification with Carbon Dioxide

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Journal of China University of Mining and Technology 2007年第2期17卷 197-200页

作者： ZHANG Jia-wei zong Zhi-min WANG Tao-xia XIE Rui-lun DING ming-jie CAI Ke-ying HUANG yao-guo GAO Jin-sheng WU You-qing WEI Xian-yong School of Chemical Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China Luohe Occupation Technical College Luohe Henan 462000 China College of Resource and Environmental Engineering East China University of Science and Technology Shanghai 200237 China

Five Shenfu char samples were prepared from Shenfu raw coal at different temperatures （950, 1100, 1200, 1300 and 1400℃） using a muffle furnace. Demineralization of the char samples was performed by treating them with 10% nitric acid for 10 min in a CEM Discover microwave reactor. The gasification of the chars, and corresponding demineralized chars, in a carbon dioxide （CO2） atmosphere was conducted in a Netzsch STA 409Cl31F tempera- ture-programmed thermogravimetry apparatus. The effects of charring temperature and demineralization on the gasification reactivity of chars were systematically investigated. The results show that a char formed at a lower temperature is more reactive except for demineralized char formed at 1100℃, which is less reactive than char formed at 1200℃. Demineralization decreases the char reactivities toward gasification with CO2 to a small extent.

关键词： demineralization temperature-programmed thermogravimetry reactivity

Hard X-ray Imager (HXI) onboard the ASO-S mission

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Research in Astronomy and Astrophysics 2019年第11期19卷 49-62页

作者： Zhe Zhang Deng-Yi Chen Jian Wu Jin Chang Yi-ming Hu yang Su yan Zhang Jian-Ping Wang yao-ming Liang Tao Ma Jian-Hua guo ming-Sheng Cai yong-Qiang Zhang yong-Yi Huang Xiao-yan Peng zong-Bin Tang Xuan Zhao Hong-He Zhou Lian-guo Wang Jing-Xing Song Miao Ma Guang-Zhou Xu Jian-Feng yang Di Lu Ying-Hong He Jin-You Tao Xiao-Long Ma Bao-Gang Lv yan-Ping Bai Cai-Xia Cao Yu Huang Wei-Qun Gan Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201203China National Space Science Center Chinese Academy of SciencesBeijing 100190China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China

Hard X-ray Imager(HXI)is one of the three scientific instruments onboard the Advanced Spacebased Solar Observatory(ASO-S)mission,which is proposed for the 25th solar maximum by the Chinese solar *** is designed to investigate the non-thermal high-energy electrons accelerated in solar flares by providing images of solar flaring regions in the energy range from 30 keV to 200 *** imaging principle of HXI is based on spatially modulated Fourier synthesis and utilizes about 91 sets of bi-grid sub-collimators and corresponding LaBr3 detectors to obtain Fourier components with a spatial resolution of about 3 arcsec and a time resolution better than 0.5 *** engineering prototype has been developed and tested to verify the feasibility of *** this paper,we present background,instrument design and the development and test status of the prototype.

关键词： instrumentation:detectors space vehicles:instruments Sun:X-ray techniques:imaging spectroscopy

Apolipoprotein E gene polymorphisms associated with processing speed and executive functions in healthy Han Chinese

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Neuroscience Bulletin 2015年第3期31卷 368-370页

作者： Cheng-Cheng Zhang H ong-yan Ren ming-LiLi Qiang Wang Wei Deng Wan-Jun guo Wei Lei Bo Xiang Lian-Sheng Zhao Xiao-Hong Ma yong-Gang yao Tao Li The Mental Health Center West China Hospital Sichuan University The Psychiatric Laboratory State Key Laboratory of Biotherapy West China Hospital Sichuan University Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences a nd Yunnan Province Kunming Institute of Zoology

Dear Editor,A few studies have focused on exploring APOE gene- related effects on cognitive functions and brain activities in healthy populations. Bondi et aL found that ε4 carriers perform significantly worse on the California Verbal Learning Test than non-carriers in non-demented old subjects （mean age, 72 years）ε11. But the results are not entirely consistent. For example, Scarmeas et aL found no effect of the E4 allele on neuropsychological performance[2] in young adults, and Jochemsen et al. found that the ε4 allele is associated with age-related cognitive decline[3]. Furthermore, protective and negative effects of the E2 allele on cognition are inconsistent[4＇ s]. APOE E2 is thought to be a protective allele for AD in the elderly population due to its role in the superior cognitive performance of ε2 carriers compared to E3 or E4 carriers[5]. However, the ε2 allele has also been found to have a negative effect on AD pathology[4].

关键词： Apolipoprotein E gene polymorphisms associated with processing speed and executive functions in healthy Han Chinese gene