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Phosphatidylserine:An overview on functionality,processing techniques,patents,and prospects

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Grain & Oil Science and Technology 2023年第4期6卷 206-218页

作者： Jingnan Chen Jun Li Haoyu Xu Jiaxi Li yonghong yuan Xuebing Xu Yanlan Bi College of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China Wilmar(Shanghai)Biotechnology Research and Development Center Co. Ltd.Shanghai 200137China Enzymecode Biotechnology Co. Ltd.Binhai New DistrictTianjin 300457China

Phosphatidylserine(PS)is the part of cell structure in the body and has many beneficial functions especially in brain-related aging *** daily foods can provide PS to human body,the amount is very limited due to its poverty in most *** overcome the issue,numerous studies based on PS have been reported to develop PS-related *** this review,PS was comprehensively and critically reviewed from the view of resources,functions,processing techniques,patents,and *** resources,animal,plant,and microorganism origins were all covered with their differences in composition *** functions,benefits regarding memory,cognitive enhancement,exercise performance,reducing Alzheimer’s disease,and attention-deficit hyperactivity disorder symptoms were covered as well as the functional differences among animal-,plant-,and microorganism-based PS-related *** processing techniques,traditional extracting methods from animal,plant,and microorganism tissues were comparatively discussed with enzymatic synthesis based on different reaction ***,patents of PS-related supplements were evaluated as well as their *** review could provide scientific and valuable support for PS industry.

关键词： Phosphatidylserine Functionality Processing techniques Patents evaluation Prospects

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铁路货车大型铸钢件清理智能化解决方案

轨道交通材料 2024年第2期3卷 41-45页

作者：袁永宏刘幼平廖仲宾贾永祥孙书来杜伟中车眉山车辆有限公司四川眉山620032

结合铁路货车大型铸钢件摇枕、侧架清理作业的实际情况,对清理工序进行了工位制、节拍化设计,在融合3D视觉、机器人、安全环保、系统集成与控制等技术的基础上,提出了一种行业通用性较强的铸钢件清理智能化解决方案,包括准备工位、智能... 详细信息

结合铁路货车大型铸钢件摇枕、侧架清理作业的实际情况,对清理工序进行了工位制、节拍化设计,在融合3D视觉、机器人、安全环保、系统集成与控制等技术的基础上,提出了一种行业通用性较强的铸钢件清理智能化解决方案,包括准备工位、智能切割单元、人工切割单元、智能修磨单元、人工焊磨单元、智能物流单元、安全环保单元、浇冒口收集系统等,并将其组成一条铁路货车铸钢摇枕侧架智能切割与修磨产线。经作业验证,该方案提高了作业质量,降低了人工作业强度,且作业环境良好,经济可行。

关键词：货车摇枕侧架清理智能化产线

超声波辅助亚临界水提取荜茇总黄酮工艺优化及其抗氧化活性评价

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中国食品添加剂 2024年第2期35卷 32-42页

作者：廖子蔚胡辉袁咏红陈秀云黄茜茜龙林孙代华劲牌持正堂药业有限公司黄石435000 湖北省中药配方颗粒工程技术研究中心黄石435000

采用超声波协同亚临界水技术进行荜茇中黄酮类成分的提取条件研究,并对其不同部位的总黄酮提取物进行抗氧化性对比分析。结果表明,超声波协同亚临界水提取荜茇整株总黄酮最佳工艺条件为超声温度50℃,超声功率240 W,超声时间40 min,料液... 详细信息

采用超声波协同亚临界水技术进行荜茇中黄酮类成分的提取条件研究,并对其不同部位的总黄酮提取物进行抗氧化性对比分析。结果表明,超声波协同亚临界水提取荜茇整株总黄酮最佳工艺条件为超声温度50℃,超声功率240 W,超声时间40 min,料液比1∶30(g/mL),亚临界水提取温度125℃,亚临界水提取时间为40 min,在此工艺条件下荜茇整株总黄酮最高提取量为(30±0.05)mg/g。不同部位总黄酮提取物对DPPH自由基和超氧阴离子自由基清除能力的大小顺序为果穗>叶>根>茎,DPPH自由基清除率和超氧阴离子自由基清除率的IC50值分别为荜茇果穗37.96、304.33μg/mL,荜茇叶44.55、384.36μg/mL,荜茇根47.68、461.54μg/mL,荜茇茎130.60、487.80μg/mL。采用超声波协同亚临界水提取荜茇整株总黄酮的工艺条件合理,提取得到的总黄酮具有良好的抗氧化性。

关键词：荜茇总黄酮超声波亚临界水不同部位抗氧化性

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梁启超与东京大同高等学校

广东社会科学 2007年第5期 126-132页

作者：袁咏红武汉大学历史学院

梁启超自从投身政治活动伊始,就高度重视办报办学,以启民智、育人才作为推动维新变法的基础。从湖南时务学堂到东京大同高等学校,上述办学目的和以"政学"为主要内容的教学方法一以贯之。东京大同高等学校可说是湖南时务学堂的复活与延伸。

关键词：梁启超湖南时务学堂东京大同高等学校

High temperature polyimide nanocomposites containing twodimensional nanofillers for improved thermal stability and capacitive energy storage performance

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Nano Research 2024年第8期17卷 7746-7755页

作者： Ding Ai Yuting Han Zongliang Xie Xi Pang yuan Chang He Li Chenglong Wu yonghong Cheng Guanglei Wu State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China Institute of Materials for Energy and Environment State Key Laboratory of Bio-Fibers and Eco-TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

Future electronic devices toward high integration and miniaturization demand reliable operation of dielectric materials at high electric fields and elevated ***,the electrical deterioration caused by Joule heat generation remains a persistent challenge to ***,the solution-processed polyimide(PI)nanocomposites with unique two-dimensional(2D)alumina nanoplates are *** improvements in the breakdown strength,charge–discharge efficiency and discharged energy density at elevated temperatures have been demonstrated in the composites,owing to simultaneously suppressed conduction loss and increased thermal conductivity upon the incorporation of 2D Al_(2)O_(3) nanofillers possessing excellent dielectric insulation and thermophysical *** predominance of Al_(2)O_(3) nanoplates in enhancing thermal stability and high-temperature capacitive performance over nanoparticles and nanowires is validated experimentally and is further rationalized via finite element ***,the Al_(2)O_(3) nanoplates filled PI nanocomposite exhibits a hightemperature capability up to 200℃ and remarkable efficiency(e.g.≥95% at 200 MV/m)over a wide temperature range,which outperforms commercial dielectric polymers and rivals the state-of-the-art polyimide nanocomposites.

关键词： capacitors polymer nanocomposites high temperature energy storage thermal stability

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我国政府投资基金审计研究

审计研究 2019年第3期 51-57页

作者：袁永宏北京交通大学中国产业安全研究院

设立政府投资基金是我国创新财政资金使用方式的举措,政府投资基金自2015年后喷发式增长,在带动社会资金参加经济社会建设、提供基础实施和公共服务等方面起到显著作用。目前政府投资基金存在的问题主要有设立时比较分散、统筹不够,一... 详细信息

设立政府投资基金是我国创新财政资金使用方式的举措,政府投资基金自2015年后喷发式增长,在带动社会资金参加经济社会建设、提供基础实施和公共服务等方面起到显著作用。目前政府投资基金存在的问题主要有设立时比较分散、统筹不够,一些投资项目存在偏离政策目标问题,资金利用效率不高以及部分项目未达预期效益,考核评价体系有待完善,退出效率需要提升等。审计机关近几年对政府投资基金开展了审计,重点关注了财政资金投入、投资项目与基金设立目标不符等问题,但未能涵盖投资基金的全部管理环节。今后应在政府投资基金设立、筹资、投资、预算和资产管理、终止和退出等方面加强审计,这些审计内容将构成完整的政府投资基金审计框架。

关键词：政府投资基金国家审计政策目标投资绩效

Dielectric nanocomposites with superb high-temperature capacitive performance based on high intrinsic dielectric constant polymer

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Nano Research 2024年第9期17卷 8504-8512页

作者： Ding Ai yuan Chang Haoliang Liu Chenglong Wu Yao Zhou Yuting Han Hao Yu Bing Xiao yonghong Cheng Guanglei Wu Zirui Jia State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China Institute of Materials for Energy and Environment State Key Laboratory of Bio-Fibers and Eco-TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

Advancements in power electronics necessitate dielectric polymer films capable of operating at high temperatures and possessing high energy *** significant strides have been achieved by integrating inorganic fillers into high-temperature polymer matrices,the inherently low dielectric constants of these matrices have tempered the magnitude of *** this work,we report an innovative nanocomposite based on sulfonylated polyimide(SPI),distinguished by the incorporation of sulfonyl groups within the SPI backbone and the inclusion of wide bandgap hafnium dioxide(HfO_(2))*** nanocomposite has demonstrated notable enhancements in thermal stability,dielectric properties,and capacitive performance at elevated *** simulations at both molecular and mesoscopic levels have elucidated the mechanisms behind these improvements,which could be attributed to confined segmental motion,an optimized electronic band structure,and a diminished incidence of dielectric breakdown ascribed to the presence of sulfonyl ***,the SPI-HfO_(2)nanocomposite demonstrates a high charge-discharge efficiency of 95.7%at an elevated temperature of 150℃and an applied electric field of 200 MV/***,it achieves a maximum discharged energy density of 2.71 J/cm^(3),signalling its substantial potential for energy storage applications under extreme conditions.

关键词： dielectric polymer nanocomposites high-temperature high dielectric constant sulfonyl groups energy storage performance

Earthquake Monitoring and Study in the Jingpohu Volcano Cluster Area

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Earthquake Research in China 2008年第2期22卷 164-174页

作者： Liu Zhi Duan yonghong Xu Zhaofan yuan Qinxi Yang Jian Zhou Xuesong Ceophysieal Exploration Center China Earthquake AdministrationZhengzhon 450002 China

Seismicity in the Jingpohu volcanic area was investigated based on the seismic data recorded by the mobile seismic network consisting of 14 stations equipped with 24-bit broad-band 3- component seismographs around Crater Forest, Results show that there appears certain seismicity in Jingpohu and its adjacent areas with a low activity level and most of the recorded earthquakes are the volcanic-tectonic ones, The results of location indicate a dominant focal depth of 10km - 30kin, most of the earthquakes are smaller than ML2,0, and are concentrated in the area of ＂ Crater Forest＂ and on the Dunhua-Mishan fault which runs through the volcanic area. At station No. 2, which has better observation conditions, two types of events, likely associated to volcanism, were recorded; their waveform characteristics are somewhat similar to that of the long-period volcanic event and the volcanic tremor, but with different feature of frequencies.

关键词： Jingpohu volcano Earthquake type Seismicity Earthquake location

Real-Time Mosaic Method of Aerial Video Based on Two-Stage Key Frame Selection Method

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Open Journal of Applied Sciences 2024年第4期14卷 1008-1021页

作者： Minwen yuan yonghong Long Xin Li College of Railway Transportation Hunan University of Technology Zhuzhou China

A two-stage automatic key frame selection method is proposed to enhance stitching speed and quality for UAV aerial videos. In the first stage, to reduce redundancy, the overlapping rate of the UAV aerial video sequence within the sampling period is calculated. Lagrange interpolation is used to fit the overlapping rate curve of the sequence. An empirical threshold for the overlapping rate is then applied to filter candidate key frames from the sequence. In the second stage, the principle of minimizing remapping spots is used to dynamically adjust and determine the final key frame close to the candidate key frames. Comparative experiments show that the proposed method significantly improves stitching speed and accuracy by more than 40%.

关键词： UAV Aerial Video Image Stiching Key Frame Selection Overlapping Rate Remap Error