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Study on Extraction of Shikimic Acid from Pine Needles of Pinus Elliottii Engelm by Means of Microwave Pretreatment

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Study on Extraction of Shikimic Acid from Pine Needles of Pi...

Study on Extraction of Shikimic Acid from Pine Needles of Pinus Elliottii Engelm by Means of Microwave Pretreatment

2011 International Conference on Fuzzy Systems and Neural Computing(FSNC 2011)

作者： Jiyun Xie junfeng lan lan Yu Chunmei Wu Deaprtment of Chemistry and Life Science Liuzhou Teachers College

The aim was to provide scientific basis for development and utilization of pinus elliottii engelm *** the raw material, pines needles of pinus elliottii were moistened first by vaporization medium. After that, the needles were processed in advance by microwave to change tissues of needles, and finally, the Shikimic acid was extracted from the needles in hot water. Meanwhile, the extraction method is compared with traditional one in the paper. As a result, the perfect technological conditions were gained for extraction of Shikimic acid by microwave preprocessing. The method is: moistening pine needles within 15 minutes in 70% ethanol water which was 1.6 times weight of needles, then, processing the needles for 60 seconds by 70 W microwave. The processing time should increase 30 seconds every 5-gram material added. Finally, the extraction lasted over 30 minutes adding 25-time hot water at 80℃. Seven eighths of extraction time by microwave preprocessing is shortened compared by the traditional extraction method, and extraction ratio for Shikimic acid raises by 35.8%.

关键词： Microwave pretreatment Pine needles of pinus elliottii Engelm Shikimic acid

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Study on Extraction of Shikimic Acid from Pine Needles of Pi...

Nighttime Traffic Light Location Based on Binocular Vision and Electronic Map

2011 SSITE International Conference on Future Material Research and Industry Application(FMRIA 2011)

作者： Jiyun Xie junfeng lan lan Yu Chunmei Wu Deaprtment of Chemistry and Life Science Liuzhou Teachers College

The aim was to provide scientific basis for development and utilization of pinus elliottii engelm *** the raw material, pines needles of pinus elliottii were moistened first by vaporization mediumAfter that, the needles were processed in advance by microwave to change tissues of needles, and finally, the Shikimic acid was extracted from the needles in hot waterMeanwhile, the extraction method is compared with traditional one in the paperAs a result, the perfect technological conditions were gained for extraction of Shikimic acid by microwave preprocessingThe method is: moistening pine needles within 15 minutes in 70% ethanol water which was 1.6 times weight of needles, then, processing the needles for 60 seconds by 70 W microwaveThe processing time should increase 30 seconds every 5-gram material addedFinally, the extraction lasted over 30 minutes adding 25-time hot water at 80℃Seven eighths of extraction time by microwave preprocessing is shortened compared by the traditional extraction method, and extraction ratio for Shikimic acid raises by 35.8%.

关键词： Microwave pretreatment Pine needles of pinus elliottii Engelm Shikimic acid

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Nighttime Traffic Light Location Based on Binocular Vision a...

第三十九届中国控制会议

作者： lan junfeng Fang Tiyu Li Jinping School of Information Science and Engineering University of Jinan Shandong Provincial Key Laboratory of Network Based Intelligent Computing University of Jinan Shandong College and University Key Laboratory of Information Processing and Cognitive Computing in 13th Five-year

Autonomous driving needs to obtain various traffic information promptly to make decisions, and the accurate positioning of traffic light in real time is one of the key points to realize autonomous driving. Up to now, there are many interesting and practical researches related to the positioning. However, most of the scholars are doing researches of daylight traffic light location. At night, Neon lights, street lights, car lights and other factors may have a serious impact on the accurate positioning of traffic lights. How to remove the influence of these factors is a big challenge in autonomous driving. We propose a practical approach to address this challenge. The motivation of this approach is as follows: Firstly, GPS information and electronic map are used to estimate the distance and direction of the current position relative to the traffic light;secondly, binocular vision is applied to get the depth, orientation and other information of each area in the image, excluding the interference area outside the scope of the traffic light;thirdly, use some methods to positioning the traffic light, including brightness value division, geometric features analysis, circular degree detection, and then the status of the traffic light can be recognized through the HSV color space. The experimental result shows that the positioning accuracy of this method is more than 95%, the average of processing time for each image is 301 ms, which can meet the requirements of accuracy and real-time.

关键词： Traffic light Nighttime detection Binocular vision Electronic map GPS position

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敦化市保健食品消费者认知状况调查

中国煤炭工业医学杂志 2012年第2期15卷 247-251页

作者：兰俊峰吉林省敦化市疾病预防控制中心 133700

目的本研究旨在通过对消费者进行保健食品知识调查,了解其对保健食品的指导需求,为进行更为有效的保健食品教育以及消费和开发提供依据。方法自行设计《保健食品知识调查》问卷,随机调查敦化市保健食品消费者400名。数据采用EXCEL软件... 详细信息

目的本研究旨在通过对消费者进行保健食品知识调查,了解其对保健食品的指导需求,为进行更为有效的保健食品教育以及消费和开发提供依据。方法自行设计《保健食品知识调查》问卷,随机调查敦化市保健食品消费者400名。数据采用EXCEL软件双录入,用SPSS 13.0统计软件进行数据分析。结果 400名被调查者中,男183名,女217名,中青年居多,自由从业者为占较大比例,以高中/中专和大专/本科学历者居多。未接受过营养与保健食品知识教育的人约占1/4,近半数人接受过相关营养与保健食品知识培训超过5次,具有营养师或健康管理师资格者占12%。人均月收入为1 000～4 999元者所占比例较大,人均每月用于保健食品的费用,≤50元、51～100元、101～200元、201～300元、301～500元以及>500元者,均有一定比例。结论被调查者对保健食品知识的知晓率尚待提高。建议进一步加强保健食品有关知识的宣传教育,加强对公众营养补充剂有关知识的宣教,提高消费者的营养与保健食品知识水平。本调查研究为保健食品教育的设计和实施提供了科学依据。

关键词：保健食品消费者认知性

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基于信息论的高校专业结构量化分析

广东化工 2013年第19期40卷 193-195页

作者：蒋才云蓝峻峰柳州师范高等专科学校教务处广西柳州545004 柳州师范高等专科学校化学与生命科学系广西柳州545004

专业结构的优化调整影响着高校的改革和发展。为更好地对高校专业结构进行量化分析,根据教育部高职高专专业名录,运用基于信息论的Shannon-Wiener、Simpson、G-F等生态多样性指数方法对柳州师范高等专科学校的专业结构进行实证研究,结... 详细信息

专业结构的优化调整影响着高校的改革和发展。为更好地对高校专业结构进行量化分析,根据教育部高职高专专业名录,运用基于信息论的Shannon-Wiener、Simpson、G-F等生态多样性指数方法对柳州师范高等专科学校的专业结构进行实证研究,结果表明:计算结果较好地反映出高校专业结构现状,可为高校专业结构及布局的调整和优化提供了相应理论和数量依据。

关键词：信息论高校专业结构量化分析

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高师院校中高职教育的现状与改革对策

柳州师专学报 2010年第5期25卷 87-89,135页

作者：谢济运蓝峻峰柳州师范高等专科学校化学与生命科学系广西柳州545004

在分析高师院校高职教育现状的基础上,阐述了促进高职教育改革的几个配套措施及对策,便于形成高职教育的教学观、质量观,构建高职教育科学、合理的教学体系。

关键词：高师院校教育现状改革对策

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化学实验教学生活化策略

柳州师专学报 2010年第5期25卷 107-109页

作者：蓝峻峰谢济运柳州师范高等专科学校化学与生命科学系广西柳州545004

传统化学实验教学方法较严重阻碍了学生动手实验的兴趣及创新意识。生活化的实验教学顺应新课改理念,为培养学生创造性思维和创新能力提供了广阔的平台。探索对化学实验教学生活化是培养学生化学学习兴趣的有效途径,针对化学实验教学生... 详细信息

传统化学实验教学方法较严重阻碍了学生动手实验的兴趣及创新意识。生活化的实验教学顺应新课改理念,为培养学生创造性思维和创新能力提供了广阔的平台。探索对化学实验教学生活化是培养学生化学学习兴趣的有效途径,针对化学实验教学生活化进行了初步探索。

关键词：化学实验教学生活化

Fabrication of TiO_2 hollow microspheres using K_3PW_(12)O_(40) as template

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Chinese Journal of Catalysis 2015年第12期36卷 2237-2243页

作者：蓝俊峰伍晓锋吕康乐司玲玲邓克俭广西科技师范学院化学与生命科学系广西柳州545004 中南民族大学催化材料科学国家民委-教育部共建重点实验室湖北武汉430074

Fabrication of TiO 2 hollow microspheres（TiO 2-HMSs） has attracted considerable attention owing to their low density,high photoreactivity,and easy to separate and reuse. A fluoride-free method for the fabrication of TiO 2-HMSs is reported by refluxing a mixed solution of H3PW12O40（0.4 mmol）,KCl（2.5 mmol） and Ti（SO4）2（2–25 mmol） at 125 °C for 8 h,followed by decomposition of the K3PW12O40（KPW） template in basic solution. The prepared TiO 2-HMSs are characterized by X-ray diffraction,transmission electron microscopy,scanning electron microscopy,Fourier transform infrared spectroscopy,ultraviolet-visible diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy. The activities of the photocatalysts are evaluated by photocatalytic degradation of Brilliant Red X-3B,an anionic dye,under UV irradiation. It is observed that the TiO 2-HMSs exhibit diameters of approximately 0.5–1 μm,and the photocatalytic activity of TiO 2-HMSs initially increases and then decreases with an increasing amount of Ti（SO4）2. The TiO 2-HMSs prepared in the presence of 4 mmol Ti（SO4）2 exhibit the highest photocatalytic activity,which is 2.1 times higher than TiO 2 nanoparticles（prepared in the absence of the KPW template）. The enhanced photocatalytic activity of the prepared TiO 2-HMSs is ascribed to the improved crystallization,coupling effect between TiO 2and the residual KPW template,and the unique hollow structures of TiO 2-HMSs.

关键词： Titania Hollow microsphere K3PW12O40 Template Degradation

食品科学与工程专业分析化学实验教学改革的几点思考

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广东化工 2017年第15期44卷 305-306页

作者：蓝峻峰方毅林广西科技师范学院食品与生化工程学院广西来宾546199

分析化学实验是食品科学与工程本科专业的基础必修课程,是分析化学教学中的重要组成部分。围绕食品科学与工程本科专业的人才培养要求和培养方案,本研究团队对2015年、2016年本专业分析化学实验教学内容、教学方式、专业人才培养模式等... 详细信息

分析化学实验是食品科学与工程本科专业的基础必修课程,是分析化学教学中的重要组成部分。围绕食品科学与工程本科专业的人才培养要求和培养方案,本研究团队对2015年、2016年本专业分析化学实验教学内容、教学方式、专业人才培养模式等进行了探索,分析了专业人才素质培养中存在的问题,对分析化学实验教学改革提出了几点建议,并阐述了提高分析化学实验教学质量,是食品科学与工程本科专业创新型人才培养的有效途径。

关键词：分析化学实验教学改革专业人才素质