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双目面结构光三重扫描测量系统温漂补偿方法

红外与激光工程 2024年第1期53卷 213-224页

作者：杨濠铭孙子杰孙岩标邾继贵天津大学精密测试技术及仪器全国重点实验室天津300072 北京卫星制造厂有限公司北京100094

双目面结构光三重扫描是在条纹投影双目视觉重建的基础上,追加左、右相机与投影仪构成的单目视觉系统重建点云,在反光和凹凸起伏等表面测量应用上具有更好的点云完整性优势。但由于环境温度变化影响,投影仪产生较大温度漂移,导致双目重... 详细信息

双目面结构光三重扫描是在条纹投影双目视觉重建的基础上,追加左、右相机与投影仪构成的单目视觉系统重建点云,在反光和凹凸起伏等表面测量应用上具有更好的点云完整性优势。但由于环境温度变化影响,投影仪产生较大温度漂移,导致双目重建点云与单目重建点云发生“分层”现象。为此,文中提出了一种基于正交条纹投影的三重扫描系统温漂在线补偿方法,通过投影仪投射正交条纹来构建双目重建点在投影仪图像中准确的映射关系,并基于双目重建点在投影仪图像中的重投影误差最小化目标函数来求解温漂补偿后的投影仪最优外参数。最后,以金属球和汽车零件作为被测对象进行实验验证,在不依靠标定板等先验信息及繁琐标定流程基础上,所提在线快速补偿方法可以使得双目点云与单目点云温漂量分别减小78.2%和94.3%,极大减轻了温度变化对于三重扫描点云数据拼接影响。

关键词：三重扫描投影仪正交条纹温漂补偿

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红枣农药残留检测方法与降解策略的研究进展

食品工业 2024年第1期45卷 139-142页

作者：秦晓慧曹颖孙子捷崔烓堃刘继超孙中贯枣庄学院食品科学与制药工程学院枣庄277160 山东恒糅生物科技有限公司枣庄277099

红枣在种植过程中易受虫类的侵害,这使得红枣的品质大幅下降,人们通常采用喷洒农药的方式以提高红枣的产量和品质。农药及其衍生物广泛残留于食品、土壤、水域及其他生态环境中,具有一定的毒害性,因此如何检测并降解残留农药备受人们关... 详细信息

红枣在种植过程中易受虫类的侵害,这使得红枣的品质大幅下降,人们通常采用喷洒农药的方式以提高红枣的产量和品质。农药及其衍生物广泛残留于食品、土壤、水域及其他生态环境中,具有一定的毒害性,因此如何检测并降解残留农药备受人们关注。文章对近年来农药残留检测和降解方法的研究进行了总结,包括标记免疫分析技术法、胆碱酯酶抑制法、离子色谱法、微生物降解法、臭氧降解法和光催化降解法等技术的研究现状和应用情况,以期为红枣农药残留的检测和降解提供参考。

关键词：免疫分析技术离子色谱法光催化降解法农药残留降解方法

New record of the feather star Palaeocomatella hiwia(Echinodermata:Crinoidea:Comatulida)from Zhenbei Seamount in South China Sea:new insights into the taxonomic position of Palaeocomatella

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Journal of Oceanology and Limnology 2024年第1期42卷 244-251页

作者： Shao’e sun zijie MEI Zhongli SHA Jing WANG Nansheng CHEN Department of Marine Organism Taxonomy and Phylogeny Institute of OceanologyChinese Academy of SciencesQingdao 266071China CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laoshan Laboratory Qingdao 266237China Shandong Province Key Laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China

One specimen belonging to the family Comatellinae was collected from the Zhenbei Seamount(332.5–478.2 m)in the South China Sea in July *** on the morphological characters,the specimen was identified as Palaeocomatella hiwia McKnight,*** is first recorded from China Sea and redescribed in *** specimen differs from the original description from New Zealand for never showing syzygy at br4+5 or br5+6 on interior and br1+2 on exterior ***,it is much conform to the redescription to specimens from Indonesia,with only differences in position of the second syzygy and distalmost pinnule *** is deposited in the Institute of Oceanology,Chinese Academy of *** analyses based on the mitochondrial c oxidase subunit I(COI)and 16S rRNA genes indicated that *** was nested within the tribe Phanogeniini and clustered with Aphanocomaster ***,*** showed same morphological features in terms of mouth placement,comb location,and number of comb teeth rows as other genera of ***,we suggest that the genus Palaeocomatella should be put in the tribe Phanogeniini.

关键词： new record Palaeocomatella hiwia McKnight 1977 South China Sea phylogenetic relationship taxonomy

Nanoimprint-induced strain engineering of two-dimensional materials

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Microsystems & Nanoengineering 2024年第2期10卷 323-332页

作者： Chuying sun Jianwen Zhong Zhuofei Gan Liyang Chen Chuwei Liang Hongtao Feng Zhao sun zijie Jiang Wen-Di Li The University of Hong Kong Hong KongChina

The high stretchability of two-dimensional(2D)materials has facilitated the possibility of using external strain to manipulate their ***,strain engineering has emerged as a promising technique for tailoring the performance of 2D materials by controlling the applied elastic strain *** various types of strain engineering methods have been proposed,deterministic and controllable generation of the strain in 2D materials remains a challenging ***,we report a nanoimprint-induced strain engineering(NISE)strategy for introducing controllable periodic strain profiles on 2D materials.A three-dimensional(3D)tunable strain is generated in a molybdenum disulfide(MoS_(2))sheet by pressing and conforming to the topography of an imprint *** strain profiles generated in MoS_(2)are demonstrated and verified by Raman and photoluminescence(PL)*** strain modulation capability of NISE is investigated by changing the imprint pressure and the patterns of the imprint molds,which enables precise control of the strain magnitudes and distributions in MoS_(2).Furthermore,a finite element model is developed to simulate the NISE process and reveal the straining behavior of MoS_(2).This deterministic and effective strain engineering technique can be easily extended to other materials and is also compatible with common semiconductor fabrication processes;therefore,it provides prospects for advances in broad nanoelectronic and optoelectronic devices.

关键词： strain dimensional molybdenum

Engineering Shewanella-re duce d graphene oxide aerogel biohybrid to efficiently synthesize Au nanoparticles

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Journal of Materials Science & Technology 2024年第1期168卷 50-61页

作者： Baocai Zhang Shulin Shao Huan Yu Qijing Liu Sicheng Shi Qingyuan Wu zijie Wu Yiyu Feng Yifei Wang Xi sun Deguang Wu Feng Li Hao Song Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China College of Biological Engineering Tianjin Agricultural UniversityTianjin 300384China Department of Brewing Engineering Moutai InstituteLuban AveRenhuai 564507China

Biosynthesizing Au nanoparticles(AuNPs)from gold-bearing scraps provides a sustainable method to meet the urgent demand for ***,it remains challenging to efficiently biosynthesize AuNPs of which the diameter is less than 10 nm from a trace amount of Au^(3+)concentration at the level of tens ***,we constructed an exoelectrogenic cell(eCell)-conductive reduced-graphene-oxide aero-gel(rGA)biohybrid by assembling Shewanella sp.S1(SS1)as living biocatalyst and rGA as conductive ad-sorbent,in which Au^(3+)at trace concentrations would be enriched by the adsorption of rGA and reduced to AuNPs through the extracellular electron transfer(EET)of *** regulate the size of the synthe-sized AuNPs to 10 nm,the strain SS1 was engineered to enhance its EET,resulting in strain RS2(pYYD-P tac-ribADEHC&pHG13-P_(bad)-omcC in SS1).Strain RS2 was further assembled with rGA to construct the RS2-rGA biohybrid,which could synthesize AuNPs with the size of 7.62±2.82 nm from 60 ppm Au^(3+)*** eCell-rGA biohybrid integrated Au^(3+)adsorption and reduction,which enabled AuNPs biosyn-thesis from a trace amount of Au^(3+).Thus,the required Au^(3+)ions concentration was reduced by one or two orders of magnitude compared with conventional methods of AuNPs *** work devel-oped an AuNPs size regulation technology via engineering eCell’s EET with synthetic biology methods,providing a feasible approach to synthesize AuNPs with controllable size from trace level of gold ions.

关键词： Au nanoparticles Exoelectrogenic cell(e-Cell) Shewanella Synthesis biology Extracellular electron transfer Reduced graphene oxide aerogel

利用计算生物学方法识别原核启动子的研究进展

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电子科技大学学报 2021年第5期50卷 667-675页

作者：苏伟孙自杰岳鹏林昊电子科技大学生命科学与技术学院成都611731 成都东软学院健康医疗科技学院成都611844

原核启动子作为DNA中的一个关键区域,含有RNA聚合酶特异性结合和基因转录起始所需的保守序列,在转录调控中发挥着重要作用。然而,由于实验方法在实验周期和实验耗材上的限制,对启动子序列进行批量准确的鉴定仍然是分子生物学领域一项艰... 详细信息

原核启动子作为DNA中的一个关键区域,含有RNA聚合酶特异性结合和基因转录起始所需的保守序列,在转录调控中发挥着重要作用。然而,由于实验方法在实验周期和实验耗材上的限制,对启动子序列进行批量准确的鉴定仍然是分子生物学领域一项艰巨的任务。随着计算机技术的发展,出现了多个基于计算生物学的原核启动子预测方法,这些方法在数据质量、数据集大小、提取的特征、特征选择技术、分类算法以及评估策略方面表现出高度的多样性。该文系统地比较并总结这些方法,以便改进和进一步发展原核启动子识别技术。

关键词：生物信息机器学习预测器原核启动子

HEMU:An integrated comparative genomics database and analysis platform for Andropogoneae grasses

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Plant Communications 2024年第4期5卷 133-136页

作者： Yuzhi Zhu zijie Wang Zanchen Zhou Yuting Liu Xiang Gao Weilong Guo Junpeng Shi School of Agriculture Shenzhen Campus of Sun Yat-sen UniversitySun Yat-sen UniversityShenzhen 518107China Frontiers Science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and Utilization(MOE)and Beijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China These authors contributed equally to this article.

Dear Editor,Tribe Andropogoneae within the family Poaceae encompasses92 genera and 1200 species of substantial agronomic and ecological importance,as represented by maize(Zea mays),sorghum(Sorghum bicolor),sugarcane(... 详细信息

关键词： mays) crops pogon

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学校体育教学“道”与“术”的双向治理研究

安阳师范学院学报 2023年第2期 104-108页

作者：孙自杰潍坊科技学院山东寿光262700

学校体育教学需要在“道”与“术”之间保持合理的张力,作为同向同行关系的体育教学之“道”与“术”互动过程,既是运动技术创造性理解的获得过程,也是提炼运动技术教学意义的过程。文章从回归体育本源、重建教学关系;聚焦身体素养、统... 详细信息

学校体育教学需要在“道”与“术”之间保持合理的张力,作为同向同行关系的体育教学之“道”与“术”互动过程,既是运动技术创造性理解的获得过程,也是提炼运动技术教学意义的过程。文章从回归体育本源、重建教学关系;聚焦身体素养、统整体育课程;深化课程思政、融入体育精神等方面,对“道”与“术”双向治理进行了建构。

关键词：体育教学道术体教融合关系

话语折射身份焦虑:CBA教练员的困境与化解之道

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中国体育教练员 2022年第3期30卷 62-64页

作者：孙自杰潍坊科技学院山东潍坊262700

由话语折射出CBA教练员的身份焦虑,认为:非理性话语范式正成为一种常态;CBA教练员的身份承载了中国篮球的振兴,其多模态话语蕴含着特定的意义与使命,不仅影响比赛的胜负,还会影响青少年球迷的道德内化;结果不确定性是CBA教练员身份焦虑... 详细信息

由话语折射出CBA教练员的身份焦虑,认为:非理性话语范式正成为一种常态;CBA教练员的身份承载了中国篮球的振兴,其多模态话语蕴含着特定的意义与使命,不仅影响比赛的胜负,还会影响青少年球迷的道德内化;结果不确定性是CBA教练员身份焦虑的逻辑起点,判罚可置信性是CBA教练员身份焦虑的矛盾焦点,“换教练”语境是CBA教练员身份焦虑的感应点;优秀教练员的话语更应突出“见识、职业与尊重”,“器识为先”“契约性认同”“相互承认”对化解CBA教练员身份焦虑起着正向调节作用。

关键词： CBA 教练员话语身份焦虑