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Dynamic changes of genomic methylation profiles at different growth stages in Chinese Tan sheep

第二十六届中国控制会议

作者： kang shanlin1,Liang Baoshe1,fan feng1,Shen Songhua2 1.hebei university of engineering,handan 056038,p.r.china2.Beijing university of Aeronautics and Astronautic,Beijing 056038,p.r.china

A novel fault diagnosis method for turbo-generator set based on fractal exponent theory and wavelet network is *** faults occur,they usually produce nonstationary vibration *** wavelet transform is used to localizes the characteristics of vibration signal in the time frequency domains and in a view of the inter relationship of wavelet transform between fractal theory,the whole and local fractal exponents ob-tained from wavelet transform coefficients as features are presented for extracting fault signals,which are input-ted into radial basis function for fault pattern *** improved Levenberg–Marquardt（LM）optimiza-tion technique is used to complete the network structure *** means of choosing enough samples to train the fault diagnosis network and the information representing the faults is input into the trained wavelet net-work,and according to the output result the type of fault can be *** practical diagnosis for stator temperature fluctuation and rotor vibration demonstrates that the wavelet fractal network can provide an effective way to diagnosis faults for turbo-generator set in power system.

关键词： Wavelet transform Fractal theory Fault diagnosis Neural network Turbo-generator set

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Journal of Animal Science and Biotechnology 2022年第1期13卷 82-93页

作者： Yufang Liu Qiao Xu Xiaolong kang Kejun Wang Jve Wang Dengzhen feng Ying Bai Meiying fang Department of Animal Genetics and Breeding National Engineering Laboratory for Animal BreedingMOA Laboratory of Animal Genetics and BreedingCollege of Animal Science and TechnologyChina Agricultural UniversityNo.2 Yuanmingyuan West RdBeijing 100193People’s Republic of China College of Life Sciences and Food engineering Hebei University of EngineeringHandan 056021People’s Republic of China Biotechnology Institute Nanchang Normal UniversityNanchang 330029People’s Republic of China College of Agriculture Ningxia UniversityYinchuan 750021People’s Republic of China College of Animal Science and Veterinary Medicine Henan Agricultural UniversityZhengzhou 450002People’s Republic of China Beijing Key Laboratory for Animal Genetic Improvement Beijing 100193People’s Republic of China

Background:Tan sheep,an important local sheep breed in china,is famous for their fur ***-month-old Tan sheep have white,curly hair with beautiful flower spikes,commonly known as“nine bends”,which has high economic ***,the“nine bends”characteristic gradually disappears with age;consequently,the economic value of the Tan sheep ***-related changes in DNA methylation have been reported and may be responsible for age-induced changes in gene *** now,no genome-wide surveys have been conducted to identify potential DNA methylation sites involved in different sheep growth *** this study we investigated the dynamic changes of genome-wide DNA methylation profiles in Tan sheep using DNA from skin and deep whole-genome bisulfite sequencing,and compared the DNA methylation levels at three different growth stages:1,24,and 48 months old(mon1,mon24,and mon48,respectively).results:In this study,11 skin samples from three growth stages(four for mon1,four for mon24,and three for mon48)were used for DNA methylation analysis and gene expression *** were 52,288 and 236 differentially methylated genes(DMGs)identified between mon1 and mon24,mon1 and mon48,and mon24 and mon48,*** the differentially methylated regions,1.11%,7.61%,and 7.65% were in the promoter in mon1 ***24,mon24 ***48,and mon1 ***48,*** were enriched in the MApK and WNT signaling pathways,which are related to age growth and hair follicle morphogenesis *** were 51 DMGs associated with age growth and curly fleece *** DMGs between mon1 and mon48(KrT71,CD44,rOr2 and ZDHHC13)were further validated by bisulfite ***:This study revealed dynamic changes in the genomic methylation profiles of mon1,mon24,and mon48 sheep,and the percentages of methylated cytosines were 3.38%,2.85% and 4.17%,*** the DMGs,KrT71 and CD44 were highly methylated in mon1,and rOr2 and ZDHHC13 were highly methylated

关键词： Chinese tan sheep Different growth stages DNA methylation Whole genome bisulfite sequencing

逆相变热处理时间对冷轧中锰钢组织和性能的影响

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材料热处理学报 2022年第6期43卷 110-119页

作者：樊立峰亢泽张志朋贾丽英冯伟郝志敏内蒙古工业大学材料科学与工程学院内蒙古呼和浩特010051 河钢集团邯钢公司技术中心河北邯郸056015 内蒙古北方重工业集团有限公司内蒙古包头014033

采用光学显微镜、扫描电镜、X射线衍射仪等研究了0.13C-5Mn冷轧中锰钢经逆相变退火处理后的组织和力学性能,分析讨论了保温时间、加工硬化率以及相变诱导塑性效应(TrIp)对其组织和力学性能的影响。结果表明:0.13C-5Mn冷轧中锰钢经过淬... 详细信息

采用光学显微镜、扫描电镜、X射线衍射仪等研究了0.13C-5Mn冷轧中锰钢经逆相变退火处理后的组织和力学性能,分析讨论了保温时间、加工硬化率以及相变诱导塑性效应(TrIp)对其组织和力学性能的影响。结果表明:0.13C-5Mn冷轧中锰钢经过淬火及逆相变退火后组织主要为超细晶铁素体、马氏体以及奥氏体。随着保温时间的增加,实验钢组织中奥氏体含量先增加后减少,在保温30 min时达到最大值,为24.24%。随着保温时间的增加,0.13C-5Mn冷轧中锰钢的综合力学性能先升高后降低,经930℃淬火20 min并在665℃保温30 min后,实验钢的综合力学性能最佳,其抗拉强度为980 Mpa,伸长率为23.7%,强塑积为23.2 Gpa·%。

关键词：中锰钢逆相变退火 TrIp效应微观组织力学性能

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间歇曝气-内循环生物滤池效能及生物膜特性

中国环境科学 2022年第2期42卷 629-636页

作者：任武昂曹锋锋鞠恺金鹏康李思敏柴蓓蓓雷晓辉西安科技大学建筑与土木工程学院陕西西安710054 西安交通大学人居环境与建筑工程学院陕西西安710049 河北省水污染控制与生态修复技术创新中心河北邯郸056038 河北工程大学水利水电学院河北邯郸056038 河北省智慧水利重点实验室河北邯郸056038

针对间歇曝气耦合内循环生物滤池的强化脱氮作用机制尚不明确的问题,探究了反应器沿程污染物去除特性,运用多项测试手段解析系统沿程生物量、生物活性、硝化及反硝化速率,并对反应器内沿程微生物种群特性进行分析.试验结果表明:沿程类... 详细信息

针对间歇曝气耦合内循环生物滤池的强化脱氮作用机制尚不明确的问题,探究了反应器沿程污染物去除特性,运用多项测试手段解析系统沿程生物量、生物活性、硝化及反硝化速率,并对反应器内沿程微生物种群特性进行分析.试验结果表明:沿程类蛋白荧光强度逐渐减弱,最终出水并未检测到类蛋白峰;反应器沿程10~50cm区段NH^(4)^(+)-N的降低并没有引起NO_(3)^(-)-N大幅增长,并且在50cm处NO_(3)^(-)-N含量有所下降,该段反硝化作用明显;沿程溶氧环境和生物量也显示,该区域具备较为明显的缺/厌氧的环境以及富集了充足的生物量;此外,50cm处的好氧速率(OUr)低但TTC-脱氢酶活性高以及反硝化速率明显强于硝化速率,均可表明系统在该区域强化了反硝化脱氮过程.另外,16S rrNA高通量测序分析显示:系统在门水平上涉及反硝化功能的微生物有更高的丰度,主要有Firmicutes(厚壁菌门:10.64%)和Bacteroidetes(拟杆菌门:22.29%);在属水平上也明显存在反硝化功能的Comamonas(丛毛单胞菌属:3.11%)和Hydrogenophaga(2.43%).上述研究均表明间歇曝气耦合内循环的BAF系统强化了底部区域的反硝化作用进而提升了脱氮效能.

关键词：生物滤池间歇曝气内循环污染物微生物响应

肌肽的生理作用及其在畜禽生产中的应用研究进展

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中国畜牧杂志 2022年第9期58卷 58-62页

作者：康国磊王净王红娜冯涛河北工程大学生命科学与食品工程学院河北邯郸056038 河北北方学院动物科技学院河北张家口075000 河北省肉羊产业技术创新战略联盟河北张家口075000 北京市农林科学院畜牧兽医研究所北京100097 北京市农林科学院-美国俄克拉荷马州立大学动物科学联合实验室北京100097

随着人们生活水平的提高,对肉品质提出了更高要求,改善肉品质逐渐成为畜禽生产的重点之一。肌肽在畜禽生产中具有促进生长、改善肉品质等作用。肌肽可通过激活mTOr信号通路、调节Ca^(2+)转运、抗氧化、调节脂质代谢等多种途径调节机体... 详细信息

随着人们生活水平的提高,对肉品质提出了更高要求,改善肉品质逐渐成为畜禽生产的重点之一。肌肽在畜禽生产中具有促进生长、改善肉品质等作用。肌肽可通过激活mTOr信号通路、调节Ca^(2+)转运、抗氧化、调节脂质代谢等多种途径调节机体活动。本文综述了肌肽的生理作用及其在不同畜禽生产中的应用研究进展,以期为肌肽的合理使用提供参考和依据。

关键词：肌肽畜禽生产性能肉品质

Cr元素对热轧耐磨钢显微组织和耐磨性的影响

同方期刊数据库博看期刊评论

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中国冶金 2021年第8期31卷 35-39页

作者：李冠楠宋仁伯裴庆涛亢庆峰孙毅邯郸钢铁集团有限责任公司技术中心河北邯郸056015 重庆大学材料科学与工程学院重庆400044 北京科技大学材料科学与工程学院北京100083

对两种热轧耐磨钢(Cr质量分数分别为0和0.65%)经过在线层流冷却后的组织性能进行了研究,使用磨损试验机MLG-130在60 N载荷下进行摩擦磨损试验,利用场发射扫描电镜分别对试样磨损表面进行观察。两种耐磨钢冷却后组织为铁素体和马奥岛,由... 详细信息

对两种热轧耐磨钢(Cr质量分数分别为0和0.65%)经过在线层流冷却后的组织性能进行了研究,使用磨损试验机MLG-130在60 N载荷下进行摩擦磨损试验,利用场发射扫描电镜分别对试样磨损表面进行观察。两种耐磨钢冷却后组织为铁素体和马奥岛,由于Cr元素的加入,含Cr钢组织中以马奥岛为主,体积分数为82.6%。此外,在不同磨损时间下含Cr钢的耐磨性均优于无Cr钢。经过0.5、1和1.5 h磨损后,含Cr钢的磨损失重分别为0.357 8、0.769 5和1.427 2 g,其耐磨性分别为1.40、1.30和1.05 g^(-1)。无Cr钢磨损表面出现了明显的犁沟和剥落坑,磨损机制主要为微犁削和微断裂。而含Cr钢由于屈服强度和表面硬度更高,塑性变形被抑制,因此磨损表面更加光滑平整,主要磨损机制为微切削和微断裂。

关键词：热轧耐磨钢 Cr元素显微组织耐磨性磨损机制

Mapping essential urban land use categories in china(EULUC-china):preliminary results for 2018

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Science Bulletin 2020年第3期65卷 182-187页

作者： peng Gong Bin Chen Xuecao Li Han Liu Jie Wang Yuqi Bai Jingming Chen Xi Chen Lei fang Shuailong feng Yongjiu feng Yali Gong Hao Gu Huabing Huang Xiaochun Huang Hongzan Jiao Yingdong kang guangbin Lei Ainong Li Xiaoting Li Xun Li Yuechen Li Zhilin Li Zhongde Li Chong Liu Chunxia Liu Maochou Liu Shuguang Liu Wanliu Mao Changhong Miao Hao Ni Qisheng pan Shuhua Qi Zhehao ren Zhuoran Shan Shaoqing Shen Minjun Shi Yimeng Song Mo Su Hoi ping Suen Bo Sun fangdi Sun Jian Sun Lin Sun Wenyao Sun Tian Tian Xiaohua Tong Yihsing Tseng Ying Tu Hong Wang Lan Wang Xi Wan Zongming Wang Tinghai Wu Yaowen Xie Jian Yang Jun Yang Man Yuan Wenze Yue Hongda Zeng Kuo Zhang Neng Zhang Tao Zhang Yu Zhang feng Zhao Yichen Zheng Qiming Zhou Nicholas Clinton Zhiliang Zhu Bing Xu Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing 100084China Tsinghua Urban Institute Tsinghua UniversityBeijing 100084China Center for Healthy Cities Institute for China Sustainable UrbanizationTsinghua UniversityBeijing 100084China Department of Land Air and Water ResourcesUniversity of CaliforniaDavisCA 95616-8627USA Department of Geological and Atmospheric Sciences Iowa State UniversityAmesIA 50011USA State Key Laboratory of remote Sensing Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100101China AI for Earth Laboratory Cross-Strait InstituteTsinghua UniversityBeijing 100084China International Institute for Earth System Sciences Nanjing UniversityNanjing 210093China research Center for Ecology and Environment of Central Asia Chinese Academy of SciencesUrumchi 830011China Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China National engineering Laboratory for Applied Technology in Forestry&Ecology in South china College of Life Science and TechnologyCentral South University of Forestry and TechnologyChangsha 410004China College of Surveying&Geo-Informatics Tongji UniversityShanghai 200092China Department of Urban planning College of Architecture and Urban PlanningTongji UniversityShanghai 200092China Beijing Institute of Urban planning Beijing 100045China Department of Urban planning School of Urban DesignWuhan UniversityWuhan 430072China College of Earth Sciences Jilin UniversityChangchun 130061China research Center for Digital Mountain and remote Sensing Application Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Institute of remote Sensing and Geographic Information System School of Earth and Space SciencesPeking UniversityBeijing 100871China Department of Urban and regional planning School of Geography and PlanningSun Yat-sen Univ

Land use reflects human activities on *** land use is the highest level human alteration on Earth,and it is rapidly changing due to population increase and *** areas have widespread effects on local hydrology,climate,biodiversity,and food production[1,2].However,maps,that contain knowledge on the distribution,pattern and composition of various land use types in urban areas,are limited to city *** mapping standard on data sources,methods,land use classification schemes varies from city to city,due to differences in financial input and skills of mapping *** address various national and global environmental challenges caused by urbanization,it is important to have urban land uses at the national and global scales that are derived from the same or consistent data sources with the same or compatible classification systems and mapping *** is because,only with urban land use maps produced with similar criteria,consistent environmental policies can be made,and action efforts can be compared and assessed for large scale environmental ***,despite of the fact that a number of urban-extent maps exist at global scales[3,4],more detailed urban land use maps do not exist at the same *** at big country or regional levels such as for the United States,china and European Union,consistent land use mapping efforts are rare[5,6](e.g.,https://***/open_land_use/).

关键词： EULUC-china 土地利用类型

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兼具水质净化及调蓄功能的组合人工湿地设计

中国给水排水 2023年第4期39卷 59-64页

作者：耿安锋杨仲韬李阳阳康文庆高进仑李强高镜清中国市政工程华北设计研究总院有限公司天津300381 邯郸市园林局河北邯郸056002 包头市排水产业有限责任公司内蒙古包头014030 郑州大学生态与环境学院河南郑州450001

邯郸两高湿地工程设计采用水质净化和雨洪调蓄相结合的方案。采用滞留塘+表流湿地+水平潜流湿地工艺处理邯临沟来水,最大处理规模为2000m^(3)/d。在常规处理、应急处理、内循环处理三种运行工况下,出水主要污染物指标均优于《地表水环... 详细信息

邯郸两高湿地工程设计采用水质净化和雨洪调蓄相结合的方案。采用滞留塘+表流湿地+水平潜流湿地工艺处理邯临沟来水,最大处理规模为2000m^(3)/d。在常规处理、应急处理、内循环处理三种运行工况下,出水主要污染物指标均优于《地表水环境质量标准》(GB 3838—2002)Ⅴ类标准,可用于绿化浇灌、生态补水等。在此基础上,工程利用滞留塘和表流湿地作为雨洪调蓄区对邯临沟汛期来水进行调蓄,最大调蓄规模为6000m^(3),可缓解河道行洪压力。

关键词：水质净化雨洪调蓄组合人工湿地

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无资料地区洪水预报参数估计

海河水利 2023年第2期 77-83页

作者：冯晓乐王利书龙岩康爱卿河北工程大学水利水电学院河北邯郸056038 河北省智慧水利重点试验室河北邯郸056038 中国水利水电科学研究院北京100038

以广州市流溪河流域内流溪河水库、黄龙带水库、和龙水库等9个水库子流域为研究对象,根据已知出库流量及库容曲线反推入库流量,基于三水源新安江模型进行洪水预报。假定芙蓉嶂水库为无资料地区,根据气象预报及其余8个子流域的流域特征... 详细信息

以广州市流溪河流域内流溪河水库、黄龙带水库、和龙水库等9个水库子流域为研究对象,根据已知出库流量及库容曲线反推入库流量,基于三水源新安江模型进行洪水预报。假定芙蓉嶂水库为无资料地区,根据气象预报及其余8个子流域的流域特征值进行参数移植,建立流域特征值和敏感性参数的多元回归方程,对比分析距离相近法、面积相似法、参数平均法与多元回归法的参数移植结果,发现多元回归法移植效果较好,预报结果达到乙级精度。

关键词：新安江模型粒子群算法流域特征值参数移植