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Fe-Based Powders Prepared by Ball-Milling with Considerable Degradation Efficiency to Methyl Orange Compared with Fe-Based Metallic Glasses

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Acta Metallurgica Sinica(English Letters) 2018年第11期31卷 1207-1214页

作者： Sheng-Hui Xie Guang-Qiang Peng xian-Meng tu Hai-Xia Qian Xie-Rong Zeng Shenzhen Key Laboratory of Special Functional Materials and Shenzhen Engineering Laboratory for Advance Technology of Ceramics College of Materials Science and Engineering Shenzhen University Shenzhen 518060 China

In this study, the degradation efficiencies of zero-valent iron （ZVI） powders with different structures and components wereevaluated for methyl orange （MO）. The results show that the structure is an essential factor that affects degradation, andadded non-metallic elements help optimize the structure. The amorphous and balled-milled crystalline Fe7oSiloB2o hascomparative degradation efficiencies to MO with tl/2 values of 6.9 and 7.0 min, respectively. Increasing the boron contentcan create a favorable structure and promote degradation. The ball-milled crystalline Fe70B30 and Fe43.64B56.36 powdershave relatively short tl/2 values of 5.2 and 3.3 rain, respectively. The excellent properties are mainly attributed to theirheterogeneous structure with boron-doped active sites in ZVI. Composition segregation in the nanoscale range in anamorphous FeSiB alloy and small boron particles in the microscale range embedded in large iron particles prepared by ball-milling, both constitute effective galvanic cells that promote iron electron loss and therefore decompose organic *** findings may provide a new, highly efficient, low-cost commercial method for azo dye wastewater treatment usingZVI.

关键词： Fe-based powder Fe-based metallic glass Degradation Methyl orange Galvanic cell

企业数字化转型下基于湖仓一体化的数据中台建设探索与研究

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3D printing of osteocytic Dll4 integrated with PCL for cell fate determination towards osteoblasts in vitro

科学与信息化 2024年第4期 25-28,32页

作者：柯贤江屠琦封维波中国民航信息网络股份有限公司重庆分公司重庆 401123

大数据、人工智能的日益发展,进一步推动了企业数字化转型的步伐.基于数据中台以数字驱动企业进行变革与创新,可有效提升企业产品的市场竞争力.本文先对企业面临的现状问题、行业数据架构演变进行了研究和阐述,进而围绕如何基于湖仓一... 详细信息

大数据、人工智能的日益发展,进一步推动了企业数字化转型的步伐.基于数据中台以数字驱动企业进行变革与创新,可有效提升企业产品的市场竞争力.本文先对企业面临的现状问题、行业数据架构演变进行了研究和阐述,进而围绕如何基于湖仓一体化来建设数据中台进行了重点研究,给出数据中台的建设框架和实施方案.基于湖仓一体化的先进思想实现数据中台落地,可助力企业数字化转型,推动大数据人工智能在现代化企业中的应用和发展.

关键词：数字化转型大数据湖仓库一体化数据中台人工智能

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Bio-Design and Manufacturing 2022年第3期5卷 497-511页

作者： Pengtao Wang Xiaofang Wang Bo Wang xian Li Zhengsong Xie Jie Chen Tasuku Honjo Xiaolin tu Laboratory of Skeletal Development and Regeneration Institute of Life SciencesChongqing Medical UniversityChongqing 400016China Medical Data Science Academy Chongqing Medical UniversityChongqing 400016China Department of Immunology and Genomic Medicine Graduate School of MedicineKyoto UniversityYoshida Konoe-choSakyo-kuKyoto 606-8501Japan

Since 3D printed hard materials could match the shape of bone,cell survival and fate determination towards osteoblasts in such materials have become a popular research *** this study,a scaffold of hardmaterial for 3D fabrication was designed to regulate developmental signal(Notch)transduction guiding osteoblast *** established a polycaprolactone(PCL)and cell-integrated 3D printing system(PCI3D)to reciprocally print the beams of PCL and cell-laden hydrogel for a *** PCI3D module holds good cell viability of over 87%,whereas cells show about sixfold proliferation in a 7-day *** osteocytic MLO-Y4 was engineered to overexpress Notch ligand Dll4,making up 25%after mixing with 75%stromal cells in the PCI3D *** Dll4,unlike other delta-like family members such as Dll1 or Dll3,promotes osteoblast differentiation and themineralization of primary mouse and a cell line of bone marrow stromal cells when cultured in a PCI3D module for up to 28 ***,osteocytic Dll4 could not promote osteogenic differentiation of the primary bone marrow stromal cells(BMSCs)after conditional deletion of the Notch transcription factor RBPjκby Cre *** data indicate that osteocytic Dll4 activates RBPjκ-dependent canonical Notch signaling in BMSCs for their oriented differentiation towards ***,osteocytic Dll4 holds a great potential for angiogenesis in human umbilical vein endothelial cells within *** study reveals that osteocytic Dll4 could be the osteogenic niche determining cell fate towards *** will open a new avenue to overcome the current limitation of poor cell viability and low bioactivity of traditional orthopedic implants.

关键词： Integrated 3D printing PCL scaffold Cell-laden hydrogel Osteocytic Dll4 Bone marrow stromal cell Osteoblast differentiation Cell viability in hard material RBPjκ Notch signaling

Leap forward with insect genomics

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Insect Science 2016年第3期23卷 332-334页

作者： Bin Chen xian-Hui Wang Zhijian tu Yong-Ping Huang Institute of Entomology and Molecular Biology Chongqing Normal University Chongqing China State Key Laboratory of IntegratedManagement of Pest Insects & Rodents Institute of Zoology Chinese Academy of Sciences Beijing China Department of Biochemistry Fralin Life Science Institute and Program in Genetics Bioinformatics and Computational Biology Virginia Tech Blacksburg Virginia USAand Key Laboratory of Insect Development and Evolutionary Biology Institute of Plant Physiology and Ecology Shanghai Institutes forBiological Sciences Chinese Academy of Sciences Shanghal China

Insects comprise the largest animal group in the world. More than a million insect species have been identified, leaving possibly two to three times more to be discovered. Systematic understanding of the genetic content of an insect species began more than 15 years ago when the genome sequence of the fruit fly, Drosophila melanogaster was reported （Adams et al., 2000）. For the first time, scientists were able to glean unprecedented insights into the genetic blueprint of a model insect, presenting its 13 600 protein coding genes. Such fundamental information opened a floodgate for comparative and functional analysis of these genes and enabled systems approaches to comparative, evolutionary and population genomic studies. In recent years, next-generation and third-generation sequencing platforms brought genome sequencing to more than a hundred insect species, reach- ing far beyond the few well-studied model organisms. The international consortium for insect genomes is work- ing toward an ambitious goal to sequence 5000 species of insects.

关键词： Drosophila melanogaster Insect genetics DNA sequencing Genetic code Insect evolution Insect population genetics

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贵州有毒植物数据库建设研究

科学与信息化 2024年第2期 70-72页

作者：涂国章张显强宋庆江贵州警察学院贵州贵阳 550005

目的:为搭建贵州有毒植物资源信息共享平台,实现贵州有毒植物信息化管理.方法:通过文献资料、实地考察、实验检测获取贵州有毒植物数据信息,选取SQL Server2019数据库管理系统作为数据库建设和管理操作平台,利用计算机编程技术和数据库... 详细信息

目的:为搭建贵州有毒植物资源信息共享平台,实现贵州有毒植物信息化管理.方法:通过文献资料、实地考察、实验检测获取贵州有毒植物数据信息,选取SQL Server2019数据库管理系统作为数据库建设和管理操作平台,利用计算机编程技术和数据库管理进行系统设计.结果:建立了贵州有毒植物资源信息数据库.该数据库对贵州有毒植物的查询和鉴别、中毒案事件的侦查和处置、毒物的追踪溯源具有重要的现实意义和实用价值.

关键词：贵州有毒植物数据信息库检索更新

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基于高内涵技术的补骨脂肝毒性成分筛选研究

中国药物警戒 2024年第1期21卷 74-82页

作者：尚慧莹魏雪程宏愽马增春涂博丹肖成荣刘献高月天津中医药大学天津301617 军事科学院军事医学研究院辐射医学研究所北京100850 广东药科大学广东广州510006

目的采用高内涵技术筛选补骨脂潜在肝毒性成分及其可能的作用机制。方法采用CCK-8法测定补骨脂中异补骨脂二氢黄酮、补骨脂二氢黄酮甲醚、补骨脂二氢黄酮、异补骨脂查尔酮、4’-O-甲基补骨脂查尔酮、补骨脂宁、补骨脂素、异补骨脂素、... 详细信息

目的采用高内涵技术筛选补骨脂潜在肝毒性成分及其可能的作用机制。方法采用CCK-8法测定补骨脂中异补骨脂二氢黄酮、补骨脂二氢黄酮甲醚、补骨脂二氢黄酮、异补骨脂查尔酮、4’-O-甲基补骨脂查尔酮、补骨脂宁、补骨脂素、异补骨脂素、补骨脂定、补骨脂酚10种成分的IC_(50)值。在相同浓度药物处理hepG 2细胞24 h后,进行高内涵检测,通过阳性细胞的平均荧光强度评价各组细胞活性氧、还原型谷胱甘肽、线粒体膜电位及线粒体超氧化物水平4个指标的变化情况,初步筛选补骨脂中主要肝毒性成分。结果CCK-8细胞活力实验结果显示,异补骨脂二氢黄酮、补骨脂二氢黄酮甲醚、补骨脂二氢黄酮、异补骨脂查尔酮、4’-O-甲基补骨脂查尔酮、补骨脂宁、异补骨脂素、补骨脂定、补骨脂酚对hep G 2细胞的IC_(50)值分别为52.69、42.72、83.63、42.29、57.43、110.80、1420.00、23.58和25.34μmol·L^(-1)。高内涵结果显示,在20μmol·L^(-1)浓度下,补骨脂二氢黄酮甲醚、补骨脂二氢黄酮、异补骨脂查尔酮、补骨脂定和补骨脂酚可显著提高细胞内活性氧水平;异补骨脂查尔酮、4’-O-甲基补骨脂查尔酮、补骨脂宁、异补骨脂素、补骨脂定和补骨脂酚均可导致细胞中还原型谷胱甘肽水平保护性升高;异补骨脂查尔酮、补骨脂定和补骨脂酚均显著降低线粒体膜电位,造成线粒体超氧化物累积。结论异补骨脂查尔酮、补骨脂定和补骨脂酚是补骨脂中造成线粒体功能损伤的主要成分,具有潜在的肝脏毒性,其具体作用机制有待进一步研究。

关键词：补骨脂异补骨脂查尔酮补骨脂定补骨脂酚肝毒性高内涵筛选技术线粒体膜电位线粒体超氧化物

基于Farneback-GRU的稀土熔盐反应状态识别研究

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稀土 2024年第1期45卷 132-142页

作者：陈鑫宇伍昕宇刘飞飞刘子贤涂远泯曹乐乐江西理工大学机电工程学院江西赣州341000 江西理工大学电气工程与自动化学院江西赣州341000 江西离子型稀土工程技术研究有限公司江西赣州341000

提出一种基于Farneback-GRU的稀土熔盐反应状态识别方法。通过Farneback稠密光流法、尺度变换和均值滤波量化稀土熔盐反应剧烈程度,并由门控循环单元神经网络(Gated recurrent unit,GRU)建立稀土熔盐运动场特征与稀土熔盐反应状态之间... 详细信息

提出一种基于Farneback-GRU的稀土熔盐反应状态识别方法。通过Farneback稠密光流法、尺度变换和均值滤波量化稀土熔盐反应剧烈程度,并由门控循环单元神经网络(Gated recurrent unit,GRU)建立稀土熔盐运动场特征与稀土熔盐反应状态之间的非线性映射模型。模型精度达到95.23%,能很好满足生产企业检测标准,此外,模型的性能指标表明该模型具有很好的鲁棒性,为稀土电解槽在线控制提供了重要的闭环反馈参数,为提高生产安全系数和实现无人工厂提供了重要参考。

关键词：稀土熔盐 Farneback稠密光流法门控循环单元闭环控制鲁棒性

Effects of different feeding methods and space allowance on the growth performance, individual and social behaviors of Holstein calves

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Journal of Integrative Agriculture 2017年第6期16卷 1375-1382页

作者： DONG Li-feng XU xian-cha ZHANG Nai-feng tu Yan DIAO Qi-yu Feed Research Institute Chinese Academy of Agricultural Sciences/Key Laboratory of Feed Biotechnology Ministry of Agriculture Beijing 100081 P.R. China

The importance of nutrient provisions and weaning methods for calves has been well established over the past few years,while as increasing interest has focused on contribution of animal behavior and their overall performance in production *** present study investigated the effects of feeding methods and space allowance on growth performance,individual and social behaviors in Holstein ***-four Chinese Holstein male and female calves were allocated to either an individual or group of 6 and fed either with a bucket or a *** replacer,calf starter,and Chinese wildrye were offered during the experiment.A fecal index used in the present study was defined as the total fecal scores/total number of calves in each *** results showed that there was no significant difference among the 4 treatments in terms of feed intake,body weight,average daily gain,and fecal *** the feeding behaviors,the ingesting milk time and ingesting milk rate were significantly affected by space allowance,while the feeding methods showed a significant influence on the bunting behavior of the *** was no significant difference among the 4 treatments in terms of licking fixtures,self-grooming,and lying down behaviors,irrespective of the feeding method or space ***,sucking an empty bucket or the teat was significantly affected by the feeding *** selected group behaviors were examined in the present study,and similar values for sniffing the other calves,social grooming,and cross-sucking behaviors were ***,the present study demonstrated that different feeding methods and space allowances had a significant effect on the feeding behavior of calves,while the feed intake,growth performance,health condition,individual and group social behaviors were not significantly ***,under intensified production systems,Holstein calves raised in a group may obtain a similar production performance,thus reducing management in

关键词： dairy calves feeding approach space allowance growth performance animal behavior

基于物理参数和BP神经网络的9310钢本构模型研究

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塑性工程学报 2024年第8期31卷 117-124页

作者：王宇航罗拴谋董显娟徐勇黄龙涂泽立李佳俊南昌航空大学航空制造工程学院江西南昌330063 西安圣泰金属材料有限公司陕西西安712033 南昌航空大学通航学院江西南昌330063

采用Gleeble-3800热模拟试验机对9310钢进行了变形量为70%的等温恒应变速率压缩实验,在变形温度为800~1200℃、应变速率为0.01~50 s^(-1)的范围内研究了9310钢的热变形行为。通过不同热变形参数对自扩散系数D和杨氏模量E的影响,建立了... 详细信息

采用Gleeble-3800热模拟试验机对9310钢进行了变形量为70%的等温恒应变速率压缩实验,在变形温度为800~1200℃、应变速率为0.01~50 s^(-1)的范围内研究了9310钢的热变形行为。通过不同热变形参数对自扩散系数D和杨氏模量E的影响,建立了基于物理参数的本构模型,同时基于实验数据构建了BP神经网络本构模型。结果表明:9310钢为负温度正应变速率敏感性材料,且流动应力随变形温度的升高和应变速率的降低而减小。基于不同条件构建的物理本构模型和BP神经网络模型的相关系数r均大于0.98,但BP神经网络模型的r值可达0.996,平均绝对相对误差为3.1%。经过流动应力曲线、相关系数和平均绝对相对误差的综合对比,得出BP神经网络模型对预测9310钢的流动行为具有较好的适用性。

关键词： 9310钢热变形行为物理本构模型 BP神经网络模型