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Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Atomic & Molecular Physics (1000-0364) is the property of Journal of Atomic & Molecular Physics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的探讨结肠镜检查前一日肠道准备方法的安全性、实用性及有效性。方法选取2012年1月至2016年1月该院收治的怀疑有直、结肠病变需行结肠镜检查的368例患者作为研究对象,按照随机数字表法分为对照组(184例)和观察组(184例)。对照组检查前1 d进半流质饮食,避免进食蔬菜、牛奶、瓜类水果,术前12 h禁食,并给予中药番泻叶50 g加1 000 mL开水浸泡半小时后服用至排2~3次稀便,术前4 h口服甘露醇250 mL,1 h内饮清水2 500 mL。观察组检查前1 d进普通饮食,术前12 h禁食,术前4 h口服甘露醇250 mL,30 min内饮清水1 200 mL,再口服甘露醇250 mL,30 min内饮清水1 200 mL。观察2种肠道准备方法的可接受性、肠道准备质量和服药过程中的不良反应,以及两组患者结肠检查情况和肠道清洁效果。结果观察组患者Boston肠道准备量表评分和全结肠总分均明显高于对照组,观察组发生恶心、呕吐、腹痛、腹胀、低钾血症、低血糖、睡眠障碍等不良反应发生率明显低于对照组,差异均有统计学意义(P<0.05);观察组患者肠道清洁成功率[97.28%(179/184)]及结肠镜检查成功率[99.46%(183/184)]均高于对照组[分别为92.39%(170/184)、96.20%(177/184)],差异均有统计学意义(P<0.05)。结论一日肠道准备方法用于结肠镜检查前的肠道准备质量好、安全有效,患者易于接受,值得临床推广应用。 [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Lung Cancer is the property of Chinese Journal of Lung Cancer and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Lung Cancer is the property of Chinese Journal of Lung Cancer and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Lung Cancer is the property of Chinese Journal of Lung Cancer and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Pyrolysis reaction of lignite is one of the important research directions in lignite utilization. Firstly, Shengli Lignite (SL) was pyrolyzed on a fixed bed for coking in order to analyze the structure evolution and gas formation mechanism of lignite during pyrolysis. The final temperature of semi-coke was determined by using the curve of SL pyrolysis gas generation rate at 800 °C. The pyrolytic gases was detected on-line by gas chromatography. Secondly, the characterization of Fourier transform infrared spectroscopy (FT-IR) of coal char is analyzed. And the FT-IR peak of semi-coke is fitted and calculated. Finally, combining the calculation parameters with the law of pyrolysis gas generation, the mechanisms of gas generation in each reaction stage during pyrolysis heating and the evolution law of coal structure in the process of gas generation were proposed. The results show that SL has abundant functional groups such as hydroxyl, aliphatic hydrocarbon, aromatic ring, carbonyl and ether bond. And the main functional groups in lignite have not changed, when the pyrolysis is below 350 °C. Aliphatic oxygen-containing functional groups are decomposed between 350 and 450 °C. The C=O relative content (C1) at the pyrolysis final temperature of 450 °C is 78% lower than that of 350 °C. When the pyrolysis temperature is between 560 and 800 °C, the pyrolysis reaction is mainly based on the decomposition of oxygen-containing functional groups of aromatic alkyl side chains. And the C—O relative content (C2) at the pyrolysis final temperature of 800 °C is 27% lower than that of 450 °C. At 710-800 °C range, the main pyrolysis reaction is polycondensation. The aromatic condensation (D2) of chars at a final pyrolysis temperature of 800 °C is 65% higher than that at 710 °C. Four kinds of pyrolysis gas generation processes were studied and analyzed that CO2 is mainly derived from the decomposition of carboxyl functional groups of different structures in the middle and low temperature zone. CO is generated in the high temperature, which is derived from the decomposition of the structures of phenol, ether and oxygen containing heterocyclic rings in coal. The decomposition of CH4 is mainly from the aromatic ring or methylene connecting the aromatic rings. The approximate 60% H2 mainly comes from the polycondensation reaction of aromatic structures in coal at a high-temperature zone. [ABSTRACT FROM AUTHOR]