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Food Science and Human Wellness 2024年第2期13卷 791-800页

作者： Guohui Nan Haixia Zhao Qiong Wu lisong liu Zichao Guan chenglei li Huala Wu Dabing Xiang Qi Wu College of life Science Sichuan Agricultural UniversityYa'an 625014China Faculty of Quality Management and Inspection&Quarantine Yibin UniversityYibin 644000China College of Pharmacy and Biological Engineering Chengdu UniversityChengdu 610106China

Tartary buckwheat(Fagopyrum tataricum)is a well-known pseudocereal for its health and economic ***,abundant antinutritional factors(ANFs)reduces its health *** reported,germination can improve the nutritional profile of *** this study,we systematically evaluate the safety of Tartary buckwheat seeds(TB)and Tartary buckwheat sprouts(TBS)used as high active *** evaluating nutrition levels,bioactive compounds and ANFs in TBS during germinating,5^(th)-day TBS were selected as the raw material.C57BL/6J mice were gavaged daily with distilled water,TB,or TBS for 6 *** physiological indices related to ANFs were *** showed that the TB intake tends to generate negative effects on the gut microbiota,and ***,upon TB intake,the Fe^(3+)content in serum,trypsin activity in pancreas and jejunum decreased,while the cytokine,IgE,and histamine levels in serum,water content in faeces,cytokine levels in liver and jejunum ***,TBS did not induce any obvious negative effects on the above relevant indices and showed better lipid-lowering ***,TBS are safer and more effective as a raw material to produce the functional food for long-term consumption with the intention of preventing and treating hyperlipidaemia.

关键词： Tartary buckwheat Tartary buckwheat sprouts Antinutritional factors Gut microbiota Health effect

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基于微穿孔板的模型直升机舱内降噪研究

振动．测试与诊断 2024年第5期44卷 871-878,1034页

作者：李程磊陆洋李森琛马锦超南京航空航天大学航空学院南京210016 武汉第二船舶设计研究所武汉430205

为验证微穿孔板吸声结构对直升机舱内噪声抑制的可行性和有效性,基于某轻型直升机模型机舱,开展了仿真与试验研究。首先,给出了适用于直升机舱内壁板的典型微穿孔板吸声结构方案;其次,建立了主减速器/机体声振耦合有限元模型,得到了微... 详细信息

为验证微穿孔板吸声结构对直升机舱内噪声抑制的可行性和有效性,基于某轻型直升机模型机舱,开展了仿真与试验研究。首先,给出了适用于直升机舱内壁板的典型微穿孔板吸声结构方案;其次,建立了主减速器/机体声振耦合有限元模型,得到了微穿孔板吸声结构的设计频率范围,并通过仿真验证了吸声效果;最后,搭建了安装有微穿孔板吸声结构的模型直升机机舱试验平台,开展了舱内噪声试验研究。结果表明,在机舱内安装微穿孔板吸声结构后,相比于未安装微穿孔板机舱,在800~1 000 Hz和1 200~2 000 Hz的频率范围内,均具有优良的舱内降噪效果,最大噪声衰减量超过20 dB。

关键词：直升机舱内降噪微穿孔板吸声结构声场分析

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衡水市新生儿先天性甲状腺功能减低症筛查及随访情况分析

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中国优生与遗传杂志 2024年第2期32卷 389-392页

作者：张英芝李成磊黄莎莎衡水市妇幼保健院河北衡水053000

目的了解衡水市新生儿先天性甲状腺功能减低症(CH)的筛查、诊断、治疗、随访情况及需要改进的问题。方法对衡水市2004—2022年进行筛查的797431例新生儿资料进行回顾性分析总结。结果 797431例新生儿中疑似患儿423例,经静脉采血检测... 详细信息

目的了解衡水市新生儿先天性甲状腺功能减低症(CH)的筛查、诊断、治疗、随访情况及需要改进的问题。方法对衡水市2004—2022年进行筛查的797431例新生儿资料进行回顾性分析总结。结果 797431例新生儿中疑似患儿423例,经静脉采血检测甲状腺功能及超声检测确诊CH 273例,高TSH血症27例,发病率为1∶2920,273例CH患儿中甲状腺缺失、发育不全或异位82例占30.0%,甲状腺发育正常191例占70.0%。273例CH患儿均得到及时的早期诊断和治疗,高TSH血症患儿定期检测甲状腺功能。结论通过筛查让患病新生儿能够获得及时、有效的诊治,经过跟踪随访与实际情况相结合发现其中存在的问题,对改善出生人口质量提供保障的同时更好地推进了新生儿疾病筛查工作的进展。

关键词：先天性甲状腺功能减低症甲状腺功能发病率新生儿疾病筛查

Surplus energy utilization of spent lithium-ion batteries for high-profit organolithiums

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Carbon Energy 2023年第6期5卷 11-20页

作者： Jian Lu Yun Zhao Yuqiong Kang chenglei li Yawen liu liguang Wang Hao Du Meicen Fan Yunan Zhou John Wozny Tao li Naser Tavajohi Feiyu Kang Baohua li Shenzhen Key Laboratory on Power Battery Safety Tsinghua Shenzhen International Graduate School(SIGS)Shenzhen Geim Graphene CenterShenzhenChina College of Chemical and Biological Engineering Zhejiang UniversityHangzhouChina Institute of Zhejiang University QuzhouChina Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIllinoisUSA Department of Chemistry UmeåUniversityUmeåSweden

It is challenging to efficiently and economically recycle many lithium-ion batteries(liBs)because of the low valuation of commodity metals and materials,such as liFePO_(4).There are millions of tons of spent liBs where the barrier to recycling is economical,and to make recycling more feasible,it is required that the value of the processed recycled material exceeds the value of raw commodity *** presented research illustrates improved profitability and economics for recycling spent liBs by utilizing the surplus energy in lithiated graphite to drive the preparation of organolithiums to add value to the recycled lithium *** study methodology demonstrates that the surplus energy of lithiated graphite obtained from spent liBs can be utilized to prepare high-value organolithiums,thereby significantly improving the economic profitability of liB ***(R-O-li and R-li)were prepared using alkyl alcohol(R-OH)and alkyl bromide(R-Br)as substrates,where R includes varying hindered alkyl *** organolithiums extracted from per kilogram of recycled liBs can increase the economic value between$29.5 and$226.5 kg^(−1) *** value of the organolithiums is at least 5.4 times the total theoretical value of spent materials,improving the profitability of recycling liBs over traditional pyrometallurgical($0.86 kg^(−1) cell),hydrometallurgical($1.00 kg^(−1) cell),and physical direct recycling methods($5.40 kg^(−1) cell).

关键词： lithiated graphite lithium-ion batteries recycling regeneration spent lithium-ion batteries

One-year observation of the mixing states of oxygenated organics-containing single particles in Guangzhou,China

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 155-169页

作者： liyuan Mao Suxia Yang Xiaoya Cheng Sulin liu Duanying Chen Zhen Zhou Mei li chenglei Pei Chunlei Cheng Institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for the On-line Source Apportionment System of Air PollutionJinan UniversityGuangzhou510632China Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou510632China Guangzhou Research Institute of Environment Protection Co. Ltd.Guangzhou510620China Guangzhou Ecological and Environmental Monitoring Center of Guangdong Province Guangzhou510030China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikou570228China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy SciencesXi’an710061China

Oxygenated organic molecules(OOMs)play an important role in the formation of secondary organic aerosols(SOAs),but the mixing states of OOMs are still *** study investigates the mixing states of OOM-containing single particles from the measurements taken using a single particle aerosol mass spectrometer in Guangzhou,China in ***,the particle counts of OOM particles and the mass concentration of secondary organic carbon(SOC)exhibited similar temporal trends throughout the entire *** OOM particles were consistently enriched in secondary ions,including ^(16)O^(−),^(26)CN^(−),^(46)NO_(2)^(−),^(62)NO_(3)^(−),and ^(97)HSO_(4)^(−).In contrast,the number fractions and diurnal patterns of OOM particles among the total detected particles showed similar distributions in August and October;however,the SOC ratios in fine particulate matter were quite different,suggesting that there were different mixing states of single-particle oxygenated *** addition,further classification results indicated that the OOM particles were more aged in October than August,even though the SOC ratios were higher in ***,the distribution of hydrocarbon fragments exhibited a notable decrease from January to October,emphasizing the more aged state of the organics in *** addition,the sharp increase in elemental carbon(EC)-OOM particles in the afternoon in October suggests the potential role of EC in the aging process of ***,in contrast to the bulk analysis of SOC mass concentration,the mixing states of the OOM particles provide insights into the formation process of SOAs in field studies.

关键词： Oxygenated organics Single particles Mixing state Secondary formation Photochemistry

A review on DFACS(II):Modeling and analysis of disturbances and noises

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Chinese Journal of Aeronautics 2024年第5期37卷 120-147页

作者： chenglei YUE Bohan JIAO Zhaohui DANG Xiaokui YUE Yonghe ZHANG Yuanqing XIA li DUAN Qinglei HU Qifan liU Pengcheng WANG Ming GUO Zhansheng DUAN Bing CUI Chu ZHANG Xiaodong SHAO School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 710699China School of Automation Beijing Institute of TechnologyBeijing 100081China Institute of Mechanics Chinese Academy of SciencesBeijing 710043China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

This paper presents Part II of a review on DFACS,which specifically focuses on the modeling and analysis of disturbances and noises in *** Part I,the system composition and dynamics model of the DFACS were *** this paper,we discuss the effects of disturbance forces and noises on the system,and summarize various analysis and modeling methods for these interferences,including the integral method,frequency domain analysis method,and magnitude evaluation *** analyzing the impact of disturbances and noises on the system,the paper also summarizes the system’s performance under slight ***,we highlight current research difficulties in the field of DFACS noise ***,this paper provides valuable insights into the modeling and analysis of disturbances and noises in DFACSs,and identifies key areas for future research.

关键词： Drag-free DFACS Disturbance Analysis Noise Analysis Frequency Domain Analysis Performance Evaluation

A review on DFACS(I):System design and dynamics modeling

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Chinese Journal of Aeronautics 2024年第5期37卷 92-119页

作者： Bohan JIAO Qifan liU Zhaohui DANG Xiaokui YUE Yonghe ZHANG Yuanqing XIA li DUAN Qinglei HU chenglei YUE Pengcheng WANG Ming GUO Zhansheng DUAN Bing CUI Chu ZHANG Xiaodong SHAO School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 710699China School of Automation Beijing Institute of TechnologyBeijing 100081China Institute of Mechanics Chinese Academy of SciencesBeijing 710043China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

The Drag-Free and Attitude Control System(DFACS)is a critical platform for various space missions,including high precision satellite navigation,geoscience and gravity field measurement,and space scientific *** paper presents a comprehensive review of over sixty years of research on the design and dynamics model of ***,we examine the open literature on DFACS and its applications in Drag-Free missions,providing readers with necessary background information on the ***,we analyze the system configurations and main characteristics of different DFACSs,paying particular attention to the coupling mechanism between the system configuration and dynamics ***,we summarize the dynamics modeling methods and main dynamics models of DFACS from multiple perspectives,including common fundamentals and specific ***,we identify current challenges and technological difficulties in the system design and dynamics modeling of DFACS,while suggesting potential avenues for future *** paper aims to provide readers with a comprehensive understanding of the state-of-the-art in DFACS research,as well as the future prospects and challenges in this field.

关键词： Drag-Free DFACS System Design Dynamics Modeling Control design

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股骨干骨折后戒烟能减少骨不连

中华关节外科杂志（电子版） 2020年第1期14卷 111-114页

作者：李成磊上海市奉贤区中心医院骨科 201400

目的了解长期吸烟的股骨干骨折患者戒烟与否与发生骨不连之间的联系。方法回顾性分析近2年在上海市奉贤区中心医院就诊的股骨干骨折患者病例资料。纳入标准为采用髓内钉治疗的男性单侧股骨干骨折、吸烟者的吸烟史≥5年;排除标准为开放... 详细信息

目的了解长期吸烟的股骨干骨折患者戒烟与否与发生骨不连之间的联系。方法回顾性分析近2年在上海市奉贤区中心医院就诊的股骨干骨折患者病例资料。纳入标准为采用髓内钉治疗的男性单侧股骨干骨折、吸烟者的吸烟史≥5年;排除标准为开放性骨折、长期卧床、严重骨质疏松症、合并其他部位骨折、感染性骨不连。根据患者吸烟、戒烟情况,将受伤前无吸烟史的患者纳入为非吸烟组、受伤后戒烟的患者纳入为戒烟组、受伤后未戒烟的患者纳入为未戒烟组。记录3组患者达到骨折临床愈合的时间,进行卡方检验,了解3组患者骨不连发生情况的差异;并对骨折达到临床愈合的中位时间用Kaplan-Meier法进行预估及比较。结果非吸烟组有12.5%(4例)、戒烟组有20.4%(11例)、未戒烟组有52.9%(9例)出现骨不连,差异具有统计学意义(χ^2=10.705,P<0.05),成对比较提示未戒烟组的骨不连发生情况明显高于非吸烟组(χ^2=9.315,P<0.0167)、及戒烟组(χ^2=6.779,P<0.0167)。3组患者骨折达到骨折临床愈合的中位时间估计值分别为15.1周[95%置信区间(14.9,15.3)周]、22.0周[95%置信区间(21.7,22.4)周]和51.1周,3组患者达到骨折临床愈合时间的差异有统计学意义(P<0.05)。结论长期吸烟的股骨干骨折患者伤后及时戒烟能减少骨不连发生,但骨折临床愈合时间比未吸烟患者稍有延长。

关键词：戒烟股骨骨折骨折固定术,髓内骨折愈合回顾性研究

对地铁站台集散区客流密度与行进速度的关系探讨

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城市轨道交通研究 2009年第12期12卷 34-36,41页

作者：李三兵陈峰李程垒中铁工程设计咨询集团有限公司线路站场设计研究院北京助理工程师100055 北京交通大学土木建筑工程学院北京100044

基于北京地铁车站出站客流特征,分析了站台集散区客流密度与乘客行进速度的关系,并建立了合适的数学模型。利用北京地铁1号线复兴门站站台集散区客流数据,定量分析了二者的相互影响程度。对提高乘客出站效率提出建议:合理设计扶梯宽度,... 详细信息

基于北京地铁车站出站客流特征,分析了站台集散区客流密度与乘客行进速度的关系,并建立了合适的数学模型。利用北京地铁1号线复兴门站站台集散区客流数据,定量分析了二者的相互影响程度。对提高乘客出站效率提出建议:合理设计扶梯宽度,在楼扶梯的既定设计宽度下,增设自动扶梯数量;合理设置车站楼扶梯的布局及形式,分散设置出口,或借鉴国外地铁车站先进设计理念——换乘楼扶梯和列车运行方向立交垂直交叉设计,使乘客能零距离换乘,实现客流及时疏散。

关键词：地铁车站客流密度行进速度出站效率

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面向敏捷应用的低代码开发技术研究

科技创新与应用 2023年第14期13卷 26-29,35页

作者：李成磊南京国睿信维软件有限公司南京210028

传统软件的开发方法成本过于昂贵,开发方式过于僵化,开发周期长且定制化能力弱,难以为企业提供高效、便捷的软件产品交付,难以应对不断变化的市场并满足客户期望。该文通过调研国内和国外低代码开发技术现状及发展趋势,开展低代码开发... 详细信息

传统软件的开发方法成本过于昂贵,开发方式过于僵化,开发周期长且定制化能力弱,难以为企业提供高效、便捷的软件产品交付,难以应对不断变化的市场并满足客户期望。该文通过调研国内和国外低代码开发技术现状及发展趋势,开展低代码开发适用性分析,研究提出低代码开发平台设计与实现的初步方案,为面向敏捷应用的低代码开发平台建设提供技术支撑。

关键词：敏捷应用低代码开发技术云协同开发平台