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Flexible wide-range multidimensional force sensors inspired by bones embedded in muscle

Microsystems & Nanoengineering 2024年第3期10卷 49-61页

作者： Jie Zhang Xiaojuan Hou Shuo Qian Jiabing Huo Mengjiao Yuan Zhigang Duan xiaoguang song HuiWu Shuzheng Shi Wenping Geng Jiliang Mu Jian He Xiujian Chou Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China School of Software North University of ChinaTaiyuan 030051China School of Mechanical Engineering Hebei University of ArchitectureZhangjiakou 075000China HBIS Group Co.Ltd. Shijiazhuang 050023China

Flexible sensors have been widely studied for use in motion monitoring,human‒machine interactions(HMIs),personalized medicine,and soft intelligent ***,their practical application is limited by their low output performance,narrow measuring range,and unidirectional force ***,to achieve flexibility and high performance simultaneously,we developed a flexible wide-range multidimensional force sensor(FWMFS)similar to bones embedded in muscle *** adjustable magnetic field endows the FWMFS with multidimensional perception for detecting forces in different *** multilayer stacked coils significantly improved the output from theμV to the mV level while ensuring FWMFS *** optimized FWMFS exhibited a high voltage sensitivity of 0.227 mV/N(0.5–8.4 N)and 0.047 mV/N(8.4–60 N)in response to normal forces ranging from 0.5 N to 60 N and could detect lateral forces ranging from 0.2–1.1 N and voltage sensitivities of 1.039 mV/N(0.2–0.5 N)and 0.194 mV/N(0.5–1.1 N).In terms of normal force measurements,the FWMFS can monitor finger pressure and sliding trajectories in response to finger taps,as well as measure plantar pressure for assessing human *** plantar pressure signals of five human movements collected by the FWMFS were analyzed using the k-nearest neighbors classification algorithm,which achieved a recognition accuracy of 92%.Additionally,an artificial intelligence biometric authentication system is being developed that classifies and recognizes user *** on the lateral force measurement ability of the FWMFS,the direction of ball movement can be distinguished,and communication systems such as Morse Code can be *** research has significant potential in intelligent sensing and personalized spatial recognition.

关键词： password Morse force

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Human health risk assessment of groundwater nitrate at a two geomorphic units transition zone in northern China

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Journal of Environmental Sciences 2021年第12期33卷 38-47页

作者： Huiliang Wang Keyu Lu Chenyang Shen xiaoguang song Bin Hu Gang Liu Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Science Chinese Academy of SciencesBeijing 100085China College of Water Conservancy Engineering Zhengzhou UniversityZhengzhouHenan 450001China Zhengzhou Key Laboratory of Water Resource and Environment ZhengzhouHenan 450001China Land and Resources Exploration Center of Hebei Bureau of Geology and Mineral Resources Exploration Shijiazhuang 050081China University of Chinese Academy of Sciences Beijing 100049China

To assess groundwater nitrate contamination and its human health risks,489 unconfined groundwater samples were collected and analyzed from Zhangjiakou,northern *** spatial distribution of principle hydrogeochemical results showed that the average concentrations of ions in descend order was HCO3-,SO42-,Na+,Ca2+,Cl-,NO3-,Mg2+and K+,among which the NO3-concentrations were between 0.25 and 536.73 mg/L with an average of 29.72 mg/*** total,167 out of 489 samples(34%)exceeded the recommended concentration of 20 mg/L in Quality Standard for Groundwater of *** high NO3-concentration groundwater mainly located in the northern part and near the boundary of the two geomorphic *** revealed by statistical analysis,the groundwater chemistry was more significantly affected by anthropogenic sources than by the geogenic ***,human health risks of groundwater nitrate through oral and dermal exposure pathways were assessed by model,the results showed that about 60%,50%,32%and 26%of the area exceeded the acceptable level(total health index>1)for infants,children,adult males and females,*** health risks for different groups of people varied significantly,ranked:infants>children>adult males>adult females,suggesting that younger people are more susceptible to nitrate contamination,while females are more resistant to nitrate contamination than *** ensure the drinking water safety in Zhangjiakou and its downstream areas,proper management and treatment of groundwater will be necessary to avoid the health risks associated with nitrate contamination.

关键词： Hydrochemical characteristics Nitrate contamination Human health risk assessment Spatial distribution Northern China

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全自动罐下取样系统V1.0设计与实现

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品牌与标准化 2024年第1期 143-145页

作者：宋晓光陈晓勇齐丽曼抚顺市检验检测认证中心辽宁抚顺113008 抚顺市产品质量监督检验所辽宁抚顺113006

根据GB/T 4756—2015《石油液体手工取样法》中规定的取样点(上部样、中部样、下部样),开发一套全自动的取样系统。本文主要内容介绍了全自动罐下取样系统的应用、概述、系统设计的原理和功能、可视化系统画面的开发以及系统应用的优点。

关键词：全自动取样可视化界面

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Small G Protein as a Novel Component of the Rice Bmssinosteroid Signal Transduction

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Molecular Plant 2016年第9期9卷 1260-1271页

作者： Ge Zhang xiaoguang song Hongyan Guo Yao Wu Xiaoying Chen Rongxiang Fang State Key Laboratory of Plant Genomics Institute of Microbiology Chinese Academy of Sciences Beijing 100101 China National Center for Plant Gene Research (Beijing) Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China These authors contributed equally to this article. Present address: State Key Laboratory of Plant Genomics and NationaT Center for Plant Gene Research (Beijing) Institute of Genetics and Developmental BiologyChinese Academy of Sciences Beijing 100101 China

Brassinosteroids （BRs） are a class of steroid hormones that are essential for plant growth and development. The BR signal transduction pathway in the dicot model plantArabidopsis is well established, but the components connecting the BR signaling steps in rice have not been fully explored. For example, how the BR signaling is fine-tuned in rice, especially at the BR receptor level, is largely unknown. Here we show that OsPRA2, a rice small G protein, plays a repressive role in the BR signaling pathway. Lamina inclination, coleoptile elongation, and root inhibition assays indicated that rice plants with suppressed expression of OsPRA2 were more sensitive to exogenously applied brassinolide than the wild-type plants. Conversety, rice overexpressing OsPRA2 was less sensitive to exogenous brassinolide. Further study uncovered that OsPRA2 inhibited the dephosphorylation of, and thus inactivated the transcription factor BRASSINAZOLE- RESISTANT 1 （OsBZR1）. More importantly, OsPRA2 was found to co-localize with and directly bind to rice BR receptor BRASSlNOSTEROID-INSENSITIVE 1 （OsBRI1） at the plasma membrane. Additionally, the in vitro assays showed that OsPRA2 inhibits its autophosphorylation. This OsPRA2-OsBRI1 interaction led to the dissociation of OsBRI1 from its co-receptor OsBAK1, and abolished OsBRIl-mediated phosphorylation of OsBAK1. Together, these results reveal a possible working mechanism of OsPRA2 as a novel negative regu- lator on OsBRI1 and OsBZR1 and extend the knowledge about the regulatory mechanism of rice BR signaling.

关键词： brassinosteroid small G protein plant hormone signal transduction

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SRWD1, a novel target gene of DELLA and WRKY proteins, participates in the development and immune response of rice (Oryza sativa L.)

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Science Bulletin 2017年第24期62卷 1639-1648页

作者： Chuanmiao Xie Ge Zhang Yuman Zhang xiaoguang song Hongyan Guo Xiaoying Chen Rongxiang Fang State Key Laboratory of Plant Genomics Institute of Microbiology Chinese Academy of Sciences Beijing 100101 China National Center for Plant Gene Research (Beijing) Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Plant Genomics and National Center for Plant Gene Research (Beijing) Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101. China

SRWD1, a member of the WD40 protein subfamily, is induced by salt stress in rice and its homolog in barley can bind to GAMYB, implying that SRWD1 might be involved in plant defense against environmental stress and gibberellic acid(GA) signalings. In this study, we focused on the biological functions and regulation mechanisms of SRWD1 in rice. The results showed that SRWD1 expression was repressed by GA and induced by abscisic acid(ABA). Two WRKY-family transcription factors, Os WRKY45 and Os WRKY72, were found to regulate SRWD1 expression by directly binding to the W-box region in its promoter. Transient co-expression and yeast two-hybrid analyses showed that a DELLA protein strengthened the activation of Os WRKY45 and partly relieved the suppression of Os WRKY72 by binding to ***, both SRWD1-overexpressing transgenic plants and SRWD1-knockout mutants showed dwarf phenotypes and resistance to Xanthomonas oryzae.

关键词： Phytohormone Gibberellin(GA) Abscisic acid(ABA) Signal transduction DELLA protein WRKY family protein

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江西省中小学生视屏时间及行为类型与焦虑抑郁的关联

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中国学校卫生 2024年第3期45卷 370-374页

作者：陈婷罗雅凌户华雄宋孝光陈福辉范奕方晓艳朱慧江西省疾病预防控制中心公共卫生研究所南昌330029 九江市濂溪区疾病预防控制中心办公室

目的分析江西省中小学生视屏时间、行为类型与焦虑和抑郁现状及其相关性,为制定有效干预措施提供依据。方法2020年9—12月,采用分层随机抽样法对江西省11个设区市8851名中小学生进行问卷调查,分别采用状态-特质焦虑量表(STAI)和流调中... 详细信息

目的分析江西省中小学生视屏时间、行为类型与焦虑和抑郁现状及其相关性,为制定有效干预措施提供依据。方法2020年9—12月,采用分层随机抽样法对江西省11个设区市8851名中小学生进行问卷调查,分别采用状态-特质焦虑量表(STAI)和流调中心儿童抑郁量表(CES-DC)进行焦虑和抑郁状况调查。单因素分析采用χ^(2)检验、t检验、方差分析,多因素分析采用广义线性模型。结果中小学生上学日和周末每天总视屏时间>2 h的比例分别为4.7%和20.4%。每天总视屏时间[小学:(1.88±0.68)分,初中:(1.96±0.71)分,高中:(2.03±0.80)分]、玩电子游戏时间的加权得分[小学:(1.51±0.64)分,初中:(1.62±0.69)分,高中:(1.68±0.75)分]随着学段增加均呈上升趋势(F值分别为31.48,42.13),男生(1.97±0.74,1.66±0.72)均高于女生(1.93±0.72,1.53±0.66)(t值分别为2.48,9.07)(P值均1~2 h可降低状态焦虑的发生风险(OR=0.30),每天玩电子游戏>2 h出现特质焦虑的风险是无视屏行为的2.50倍(OR=2.50),每天总视屏时间>2 h出现抑郁的风险是无视屏行为的3.15倍(OR=3.15);每天玩电子游戏时间>0~1,>1~2,>2 h出现抑郁的风险分别是无视屏行为的2.14,2.50,4.90倍(OR值分别为2.14,2.50,4.90)(P值均1~2 h与状态焦虑呈负相关。应尽量控制中小学生视屏时间,以降低焦虑和抑郁的发生风险。

关键词：注视眼时间行为焦虑抑郁学生

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抚顺煤精的物质组成及密度与品质相关性研究

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宝石和宝石学杂志（中英文） 2024年第1期26卷 64-70页

作者：张超宋晓光范勇齐丽曼王楠王蕊盛金王环宇李文麾抚顺市产品质量监督检验所辽宁抚顺113006 抚顺市检验检测认证中心辽宁抚顺113008 抚顺琥珀研究所辽宁抚顺113005

煤精是一种天然有机宝石,由有机物和少量的矿物质组成。目前学术界缺乏对煤精物质组成的系统性研究。本文采用红外光谱、密度和灰分测定,对抚顺煤精和煤样品的物质组成进行了分析,为其鉴定和质量分级奠定了一定基础。通过红外光谱表征发... 详细信息

煤精是一种天然有机宝石,由有机物和少量的矿物质组成。目前学术界缺乏对煤精物质组成的系统性研究。本文采用红外光谱、密度和灰分测定,对抚顺煤精和煤样品的物质组成进行了分析,为其鉴定和质量分级奠定了一定基础。通过红外光谱表征发现,煤精样品的物质组成包含一定数量的酯类化合物,而煤样品中几乎没有发现,这类化合物主要来自于煤精形成过程中的腐泥煤。煤精和煤都含有脂肪烃,但煤精中脂肪烃的含量比煤中的高。煤精是在煤化过程中腐泥煤(主要成分是链状脂肪族)填充了腐殖煤(主要成分是芳香族)的孔隙形成的腐殖腐泥煤。煤精、煤和煤矸石的密度和灰分与其含有矿物质量有密切关系,含矿物质多,灰分多,密度也高。煤精的物质组成决定了煤精的外部特征。

关键词：煤精煤腐殖腐泥煤红外吸收峰密度灰分

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Atomistic understanding of rough surface on the interfacial friction behavior during the chemical mechanical polishing process of diamond

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Friction 2024年第6期12卷 1119-1132页

作者： song YUAN xiaoguang GUO Hao WANG Renke KANG Shang GAO State Key Laboratory of High-performance Precision Manufacturing Dalian University of TechnologyDalian 116024China

The roughness of the contact surface exerts a vital role in *** is still a significant challenge to understand the microscopic contact of the rough surface at the atomic ***,the rough surface with a special root mean square(RMS)value is constructed by multivariate Weierstrass–Mandelbrot(W–M)function and the rubbing process during that the chemical mechanical polishing(CMP)process of diamond is mimicked utilizing the reactive force field molecular dynamics(ReaxFF MD)*** is found that the contact area A/A0 is positively related with the load,and the friction force F depends on the number of interfacial bridge *** the surface roughness will increase the friction force and friction *** model with low roughness and high lubrication has less friction force,and the presence of polishing liquid molecules can decrease the friction force and friction *** RMS value and the degree of damage show a functional relationship with the applied load and lubrication,i.e.,the RMS value decreases more under larger load and higher lubrication,and the diamond substrate occurs severer damage under larger load and lower *** work will generate fresh insight into the understanding of the microscopic contact of the rough surface at the atomic level.

关键词： diamond random roughness reactive force field molecular dynamics(ReaxFF MD) friction Weierstrass-Mandelbrot(W-M)function chemical mechanical polishing(CMP)

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Robust genome editing of CRISPR-Cas9 at NAG PAMs in rice

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Science China(Life Sciences) 2018年第1期61卷 122-125页

作者： Xiangbing Meng Xixun Hu Qing Liu xiaoguang song Caixia Gao Jiayang Li Kejian Wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research (Beijing) Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China State Key Laboratory of Rtee Btology China National Rice Research Institute Chinese Academy of Agricultural Sciences Hangzhou 310006 China State Key Laboratory of Plant Cell and Chromosome Engineering and Center for Genome Editing Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China

Dear Editor,The CRISPR-Cas9（clustered regularly interspaced short palindromic repeats/Cas9）system has been widely used for a variety of applications,including targeted gene knockout,gene insertion,gene replacement and base *** its wide use,the genome editing using CRISPR-Cas9 is performed almost exclusively at sites containing canonical NGG protospacer adjacent motifs（PAMs）.To overcome the PAM constraint of the CRISPR-Cas9 system,many attempts have been made to develop various Cas9 orthologs and v variants with altered PAM specificities （Kleinstiver et al., 2015; Hu et al., 2016）.

关键词： NAG Figure Robust genome editing of CRISPR-Cas9 at NAG PAMs in rice

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井陉县奥陶系灰岩浅层地温能开发利用潜力研究

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钻探工程 2024年第3期51卷 136-141页

作者：张永泽于建丛郜宁宋晓光梅学嘉河北省地质矿产勘查开发局国土资源勘查中心(河北省矿山和地质灾害应急救援中心) 河北石家庄050081

为研究井陉县奥陶系灰岩所蕴藏的浅层地温能,在井陉县的河谷内实施热响应试验钻孔一眼,测试了其岩土体物理力学、热物性参数及地温场特征,发现该地区10 m以深平均地温达到了16.77℃,夏、冬季工况测试条件下单位延米换热量分别为68.38、6... 详细信息

为研究井陉县奥陶系灰岩所蕴藏的浅层地温能,在井陉县的河谷内实施热响应试验钻孔一眼,测试了其岩土体物理力学、热物性参数及地温场特征,发现该地区10 m以深平均地温达到了16.77℃,夏、冬季工况测试条件下单位延米换热量分别为68.38、65.78 W/m。通过选取地下水位埋深、地下水流速等8项指标对井陉县进行了地埋管地源热泵适宜性评价,将评价区划分为较适宜区、适宜区和不适宜区,其中较适宜区面积为244.12 km^(2),占总面积的16.82%。在此基础上对较适宜区进行了资源潜力评价,计算了其资源潜力及节能减排能力。为了更好的验证井陉县奥陶系灰岩所蕴藏的浅层地温能具有开发利用价值,安装了相关配套应用工程及监测设备,监测了在不同工况测试条件下的耗能量,通过与普通家用空调耗能量进行对比分析,使用地埋管地源热泵年运行成本约为使用空调成本的55%,具备开发利用价值。

关键词：浅层地温能适宜性评价地埋管地源热泵奥陶系灰岩井陉县

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