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新修义务教育统编历史教材七年级上册“中华文明的起源”教学设计

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历史教学（上半月） 2024年第10期 20-33页

作者：李恩泉袁从秀重庆市大渡口区教师进修学院西南大学教师教育学院

新修义务教育统编历史教材七年级上册第3课吸收中华文明探源工程的学术成果,变动多,教师把握难度大。本设计重新整合教材内容,以史前玉器入手,通过牛河梁、良渚、陶寺等地的考古发现,实证中华文明的起源,分析古国时期从满天星斗向多元... 详细信息

新修义务教育统编历史教材七年级上册第3课吸收中华文明探源工程的学术成果,变动多,教师把握难度大。本设计重新整合教材内容,以史前玉器入手,通过牛河梁、良渚、陶寺等地的考古发现,实证中华文明的起源,分析古国时期从满天星斗向多元一体的发展历程,做到透物见人,透物见史,增进学生对中华文明的认同感与自豪感。

关键词：义务教育新教材中华文明早期国家多元一体

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QY80K型全液压汽车起重机

工程机械 2008年第4期39卷 15-17页

作者：李恩全单增海张正得徐州重型机械有限公司

随着我国经济建设的快速发展,市场对大吨位起重机的需求正在逐年增加,特别是随着中国起重机租赁市场的快速成长,中国大型起重机市场正蕴

关键词：液压汽车起重机 QY80K 起重作业起重臂伸缩机构起重性能平衡重回转机构专用底盘全地面起重机

矸石回填复垦技术在许厂煤矿土地治理中的应用

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煤田地质与勘探 2019年第S1期47卷 62-64页

作者：郭振忠高强李恩全蔺成森山东许厂煤矿有限公司山东济宁272173 淄博矿业集团有限责任公司山东淄博255000

煤矿的生产建设有力地促进当地经济发展和社会进步,但同时对当地的地质环境与土地资源造成一定程度的破坏和影响。为了缓解矿产资源开发与生态环境保护协调发展的矛盾,对塌陷区进行有效的治理,避免和减少对矿区生态环境的破坏;以许厂煤... 详细信息

煤矿的生产建设有力地促进当地经济发展和社会进步,但同时对当地的地质环境与土地资源造成一定程度的破坏和影响。为了缓解矿产资源开发与生态环境保护协调发展的矛盾,对塌陷区进行有效的治理,避免和减少对矿区生态环境的破坏;以许厂煤矿矸石复垦区为对象,通过矸石物性特征和矸石需求量分析,评价矸石用于塌陷区回填和复垦的可行性,并应用于农田塌陷区及积水区治理,取得了很好的社会、环境和经济效益。

关键词：矸石回填复垦矿区沉陷矸石综合利用土地治理表土剥离

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夹护式西瓜钵苗移栽机构设计与试验

东北农业大学学报 2020年第2期51卷 69-77页

作者：许春林解江涛王宇杰李恩全辛亮东北农业大学工程学院哈尔滨150030

为解决西瓜钵苗茎秆纤细和大株冠造成的取秧、输送过程中秧苗脱落和取秧过程中秧苗子叶损伤问题,基于西瓜钵苗形态,设计一种夹护式西瓜钵苗自动移栽机构,探入式取钵移栽可保护秧苗茎、冠及形态,提高移栽作业合格率。文章根据西瓜种植农... 详细信息

为解决西瓜钵苗茎秆纤细和大株冠造成的取秧、输送过程中秧苗脱落和取秧过程中秧苗子叶损伤问题,基于西瓜钵苗形态,设计一种夹护式西瓜钵苗自动移栽机构,探入式取钵移栽可保护秧苗茎、冠及形态,提高移栽作业合格率。文章根据西瓜种植农艺要求及西瓜钵苗外形尺寸设定优化目标,开发对应计算机优化辅助分析软件,优化一组符合西瓜钵苗夹护移栽要求结构参数,建立机构三维模型并作运动学仿真。加工机构物理样机并作台架试验,通过高速摄影对比移栽作业实际轨迹、虚拟样机轨迹和理论计算轨迹基本一致,验证夹护式钵苗移栽机构设计合理性。取苗试验表明,夹护式钵苗移栽机构较普通探入式移栽机构取苗成功率提高5%终稿栽植成功率提高7.5%,栽植优良率提高7.5%,栽植优良率提高15%。夹护式栽植机构各项性可满足旱地移栽要求,护苗机构明显提高栽植质量,减少秧苗脱落和株冠子叶损伤。

关键词：西瓜钵苗移栽机构护苗设计试验

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液位传感器电磁兼容改进设计

传感器与微系统 2024年第2期43卷 116-119页

作者：智文虎刘柏青简荣坤夏云阳秦仕鹏李恩全中国电子科技集团公司第四十九研究所黑龙江哈尔滨150028

针对差动变压式位移传感器在电磁兼容试验中出现的跳变及无法继续使用等问题,进行针对性的电磁改进设计。从原理上分析输出跳变产生的原因并制定相应的改进措施。改进的传感器通过实验验证,证明采取的改进措施可行、有效,为提升差动变... 详细信息

针对差动变压式位移传感器在电磁兼容试验中出现的跳变及无法继续使用等问题,进行针对性的电磁改进设计。从原理上分析输出跳变产生的原因并制定相应的改进措施。改进的传感器通过实验验证,证明采取的改进措施可行、有效,为提升差动变压式位移传感器的抗电磁干扰能力提供了一种改进思路和方法。

关键词：差动变压式位移传感器电磁兼容跳变

对自激活激光晶体NdAl_3(BO_3)_4高重复率运转的研究

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中国激光 1990年第S1期17卷 72-74页

作者：杨爱萍刘恩泉侯学元李宇飞孙渝明刘耀刚王继扬邵宗书山东大学光学系济南250100 山东大学晶体材料所济南250100

本文利用咏冲氙灯和连续氙灯,对Nd Al_3(BO_3)_4激光晶体分别作了激光单脉冲、高重复率脉冲及连续激光运转的研究。首次实现了闪光灯泵浦Nd Al_3(BO_3)_4晶体高重复率激光运转。

关键词：高重复率激光 NdAl3(BO3)4

Characterization of the sphingolipid profiling of Emiliania huxleyi against virus infection

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Journal of Oceanology and limnology 2023年第4期41卷 1547-1557页

作者： Jingwen liU Jingjing GAO enquan ZHANG Hanrui JIANG Guiling li Jian li Jun ZENG Daren WU College of Ocean Food and Biological Engineering Jimei UniversityXiamen 361021China

lipidomics approach by UPLC-Q-Exactive-MS was used for the identification,quantification,comparison,and characterization of sphingolipids in virus infected marine Emiliania huxleyi BOF92 *** results show that 16 significantly changed sphingolipids(including Cer,CerG1,and SPHm)were identified during viral *** data confirmed previously recognized facts that viral infection led to a shift toward virus-specific sphingolipids,which is consistent with the down-regulation of genes involved in the host de novo sphingolipid ***,we revealed the upregulation of virusencoded homologous genes participating in de novo sphingolipids biosynthesis and virus-specific hydroxylated long chain bases(LCBs)as phytoCer,suggesting the competitive inhibition of host sphingolipid synthesis to produce the required building blocks for viral production,replication,and ***,Cer 40꞉1;2,Cer 40꞉2;2 isomer,and CerG139꞉0;2,Cer 39꞉0;2 as novel metabolite markers might indicate the general dysfunctions in *** in response to viral *** results show that viral infection led to a profound remodeling of host sphingolipidome,by which viruses depend on the hijacking of host sphingolipid metabolism to support the viral life cycle.

关键词： Emiliania huxleyi Coccolithovirus UPLC-Q-Exactive-MS sphingolipid metabolism biomarkers

Effects of odors on behaviors of captive Amur leopards Panthera pardus orientalis

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Current Zoology 2009年第1期55卷 20-27页

作者： Shuangying YU Zhigang JIANG Hui ZHU Chunwang li enquan ZHANG Jinguo ZHANG Carin HARRINGTON Key Laboratory of Animal Ecology and Conservation Biology Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Beijing Zoological Garden Beijing 100044 China Graduate University of the Chinese Academy of Sciences Beijing 100039 China Behavioral Conservation and Design Gold Bird Foundation Hong Kong China

Captive environments often fail to resemble the wild environment in respects of limited space, unchanging habitat, lack of stimulus and contingency. Common animal welfare problems which occur in captive animals include low behavioral diversity, abnormal behavior and excessive inactivity. Environmental enrichment, as an effective strategy to tackle these problems and promote mental health of captive animals, has been recognized as an important principal for captive animal management. Among all the enriehment techniques, olfactory enrichment is a simple and effective method for improving the well-being of the olfactory sensitive felids. Behavioral problems were observed in six Amur leopards Panthera pardus orientalis at Beijing Zoological Garden. These were held in the older type exhibits which have now been rebuilt. These behaviors include stereotypic behavior and excessive inactivity caused by the spatially limited enclosures with low levels of stimuli. To determine the effects of predator, prey, and herb odors as potential enrichment materials for captive leopards, we conducted olfactory enrichment experiments for the leopards and tested the effects of nutmeg Myristica fragrans, feces of roe deer Capreolus capreolus and urine of Amur tiger Panthera tigris altaica to test for an increase in behavioral repertoire and activity. Odors provided in this study were also believed to improve the psychological and physiological health of individuals. To standardize the method of presentation the odors were introduced to the enclosures by rubbing or spraying onto a clean towel. Our results show that the selected three odors effectively increased the behavioral diversity. Ten new behavior types were observed in the nutmeg experiment, eight in the feces of roe deer experiment and six in the tiger urine experiment. Among the three odors, cats responded to nutmeg for the longest duration, followed by tiger urine and feces of roe deer. Leopards showed more play behavior in presenc

关键词： Panthera pardus orientalis Environmental enrichment Olfactory enrichment Behavioral diversity Stereotypic behavior Animal welfare

FAM19A4 is a novel cytokine ligand of formyl peptide receptor I （FPR 1） and is able to promote the migration and phagocytosis of macrophages

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Cellular & Molecular Immunology 2015年第5期12卷 615-624页

作者： Wenyan Wang Ting li Xiaolin Wang Wanxiong Yuan Yingying Cheng Heyu Zhang enquan Xu Yingmei Zhang Shuang Shi Dalong Ma Wenling Han Department of Immunology School of Basic Medical Sciences Peking University Health Science Center Peking University Center for Human Disease Genomics Key Laboratory of Medical Immunology Ministry of Health Beijing China Department of Microbiologyand Infectious Disease Center School of Basic Medical Sciences Peking University Health Science Center Beijing China

FAM 19A4 is an abbreviation for family with sequence similarity 19 （chemokine （C-C motif）-Iike） member A4, which is a secretory protein expressed in low levels in normal tissues. The biological functions of FAM19A4 remain to be determined, and its potential receptor（s） is unclarified. In this study, we demonstrated that FAM 19A4 was a classical secretory protein and we verified for the first time that its mature protein is composed of 95 amino acids. We found that the expression of this novel cytokine was upregulated in lipopolysaccharide （LPS）-stimulated monocytes and macrophages and was typically in polarized M 1. FAM 19A4 shows chemotactic activities on macrophages and enhances the macrophage phagocytosis of zymosan both in vitro and in vivo with noticeable increases of the phosphorylation of protein kinase B （Akt）. FAM 19A4 can also increase the release of reactive oxygen species （ROS） upon zymosan stimulation. Furthermore, based on receptor internalization, radio ligand binding assays and receptor blockage, we demonstrated for the first time that FAM19A4 is a novel ligand of formyl peptide receptor 1 （FPR1）. The above data indicate that upon inflammatory stimulation, monocyte/macrophage-derived FAM 19A4 may play a crucial role in the migration and activation of macrophages during pathogenic infections.

关键词： cytokine FAM 19A4 FPR 1 macrophages phagocytosis