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电控LPG液态喷射发动机的改装与性能试验

吉林工业大学自然科学学报 2001年第4期31卷 1-5页

作者：李君朱昌吉王立君徐世利张洪伟李冬吉林大学汽车工程学院吉林长春130025 第一汽车集团公司大众汽车有限公司吉林长春130011

介绍了电控喷射汽油发动机改装成为ＬＰＧ液态喷射（ＬＰＩ）发动机的技术方法，并对ＬＰＩ发动机的性能进行了系统的试验研究。结果表明，采用ＬＰＩ系统，发动机的动力性可达到原汽油机的水平，经济性有所改善，排放指标可以达到欧... 详细信息

介绍了电控喷射汽油发动机改装成为ＬＰＧ液态喷射（ＬＰＩ）发动机的技术方法，并对ＬＰＩ发动机的性能进行了系统的试验研究。结果表明，采用ＬＰＩ系统，发动机的动力性可达到原汽油机的水平，经济性有所改善，排放指标可以达到欧洲２号排放标准，但进气门和气门座的磨损比燃用汽油时严重。

关键词： LPG发动机液态喷射系统气体燃料汽油发动机性能试验 LPI 动力性排放标准汽车

Endovascular therapy for Acute ischemic Stroke Trial (EAST): study protocol for a prospective, multicentre control trial in china

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Stroke & Vascular Neurology 2016年第2期1卷 44-51页

作者： Zhongrong Miao Xiaochuan Huo Feng Gao Xiaoling Liao Chunjuan Wang Ya Peng Yibin Cao Shengli Chen Meng Zhang changchun Jiang Xiaoxiang Peng Cunfeng Song Liping Wei Qiyi Zhu Zaiyu Guo Li Liu Hang Lin Hua Yang Wei Wu Hui Liang Anding Xu Kangning Chen Xingquan Zhao Yuesong Pan Hao Li Liping Liu Yilong Wang Yongjun Wang EAST investigators department of Interventional Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina china National Clinical Research Center for Neurological Diseases BeijingChina Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina department of Neurology Tiantan Clinical Trial and Research Center for StrokeBeijing Tiantan HospitalCapital Medical UniversityBeijingChina Center of Stroke Beijing Institute for Brain DisordersBeijingChina department of Neurosurgery Changzhou No 1 People’s HospitalChangzhouChina department of Neurology Tangshan Gongren HospitalTangshanChina department of Neurology Chongqing Sanxia Central HospitalChongqingChina department of Neurology Daping HospitalChongqingChina department of Neurology Baotou Central HospitalBaotouChina department of Neurology Hubei Zhongshan HospitalWuhanChina department of Neurology Liaocheng Third People’s HospitalLiaochengChina department of Neurology Luoyang Central Hospital affiliated to Zhengzhou UniversityChina department of Neurology People’s Hospital of Linyi CityChina department of Neurology Tianjin TEDA HospitalChina department of Neurology Chifeng Municipal HospitalChina department of Neurology Fuzhou PLA General HospitalChina department of Neurology Affiliated Hospital of Guiyang Medical CollegeChina department of Neurology Qilu Hospital of Shandong UniversityChina department of Neurology Yantai Hill HospitalChina department of Neurology The First Affiliated Hospital of Jinan UniversityChina department of Neurology Xinan HospitalChina Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease BeijingChina Neuro-intensive Care Unit Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina 不详

Background and purpose:5 recent trials have shown the benefit of endovascular treatment for acute ischaemic stroke(AIS)due to large vessel occlusion of the anterior *** study aims to evaluate the safety and efficacy of Solitaire thrombectomy in patients with moderate-to-severe stroke in the Chinese population,which has a high prevalence of intracranial *** and analysis:This multicentre prospective control study will involve 17 stroke centres in china,and plans to recruit 150 patients in the intervention group,and 150 patients in the medical group,in which patients meet enrolment criteria but refuse *** with AIS due to large vessel occlusion indicated for treatment with Solitaire stent retriever within 12 hours of symptom onset,and who meet the inclusion and exclusion criteria,will be enrolled in this *** primary efficacy endpoint is functional independence as defined by a modified Rankin Scale(mRS)score≤2 at 90 days or by functional improvement as defined by mRS,using shift *** procedural efficacy endpoint is arterial recanalisation of the occluded target vessel measured by a modified Thrombolysis in Cerebral Infarction(mTICI)score equal or superior to 2b right following the use of the study *** primary safety endpoint is symptomatic intracranial haemorrhage(sICH)within 24±3 hours *** and dissemination:The protocol was approved by the Ethics Committee at the coordinating centre and by the local Institutional Review Board of each participating *** registration number:NCT02350283.

关键词： prospective centre occlusion

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用循环水冷却的方法控制混凝土的温度裂缝

吉林工业大学自然科学学报 1999年第3期29卷 93-95页

作者：王纪海王忠诚长春水利电力高等专科学校

分析了施工时大体积混凝土的温度裂缝产生的原因，指出了控制温度裂缝的措施。结合元宝山电厂的三期工程，论述了循环水冷却控制温度裂缝的具体施工方法及其产生的效益。

关键词：循环水冷却温度裂缝混凝土施工裂缝控制

Genetic diversity of subgenotype 2.1 isolates of classical swine fever virus

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Genetic diversity of subgenotype 2.1 isolates of classical s...

miR-519d在胰腺癌细胞中的表达及其作用

第六届中国兽药大会

作者： Wenjie Gong Jianmin Wu Zongji Lu Li Zhang Shaomin Qin Fenglian Chen Zhicheng Peng Qin Wang Ling Ma Anbin Bai Huancheng Guo Jishu Shi changchun Tu Military Veterinary Institute Academy of Military Medical Sciences department of Anatomy and Physiology College of Veterinary MedicineKansas State University Guangxi Veterinary Research Institute College of Life science Foshan University College of Animal science and Technology Jilin Agricultural University china Institute of Veterinary Drug control National Classical Swine Fever Reference Laboratory Jiangsu Coinnovation Center for Prevention and control of Important Animal Infectious Diseases and Zoonoses

As the causative agent of classical swine fever,the economically devastating swine disease worldwide,classical swine fever virus(CSFV) is currently classified into the 11 subgenotypes,of which subgeno

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中国普通外科杂志 2018年第9期27卷 1142-1147页

作者：梁治坤程凡天胡走肖蔡常春华中科技大学同济医学院附属武汉中心医院肝胆胰外科湖北武汉430014

目的:探讨miR-519d在胰腺癌细胞中的表达及作用。方法:用qRT-PCR检测miR-519d在胰腺癌细胞系AsPC-1、BxPC-3、Capan-2、Panc-1及正常胰腺导管上皮细胞系HPDE6-C7中的表达。将Panc-1细胞分别转染miR-519d过表达质粒(miR-519d组)与阴性对... 详细信息

目的:探讨miR-519d在胰腺癌细胞中的表达及作用。方法:用qRT-PCR检测miR-519d在胰腺癌细胞系AsPC-1、BxPC-3、Capan-2、Panc-1及正常胰腺导管上皮细胞系HPDE6-C7中的表达。将Panc-1细胞分别转染miR-519d过表达质粒(miR-519d组)与阴性对照质粒(阴性对照组),以无处理的Panc-1细胞为空白对照组,用MTT法、Transwell实验、Western blot分别检测转染后细胞的增殖和侵袭能力、凋亡情况以及X连锁凋亡抑制蛋白(XIAP)的表达。结果:各胰腺癌细胞系中miR-519d相对表达量均明显低于正常胰腺导管上皮细胞系HPDE6-C7(均P0.05)。结论:miR-519d在胰腺癌细胞中表达下调,miR-519d表达下调有增强胰腺癌细胞增殖和侵袭能力、降低凋亡的作用,该作用可能与其调节XIAP蛋白的表达有关。

关键词：胰腺肿瘤微RNAs 细胞增殖细胞凋亡肿瘤侵润

Genetic diversity of subgenotype 2.1 isolates of classical swine fever virus

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Genetic diversity of subgenotype 2.1 isolates of classical s...

中国畜牧兽医学会兽医公共卫生学分会第五次学术研讨会

作者： Wenjie Gong Jianmin Wu Zongji Lu Li Zhang Shaomin Qin Fenglian Chen Zhicheng Peng Qin Wang Ling Ma Anbin Bai Huancheng Guo Jishu Shi changchun Tu Military Veterinary Institute Academy of Military Medical Sciences department of Anatomy and Physiology College of Veterinary MedicineKansas State University Guangxi Veterinary Research Institute College of Life science Foshan University College of Animal science and Technology Jilin Agricultural University china Institute of Veterinary Drug control National Classical Swine Fever Reference Laboratory Jiangsu Co-innovation Center for Prevention and control of Important Animal Infectious Diseases and Zoonoses

As the causative agent of classical swine fever,the economically devastating swine disease worldwide,classical swine fever virus（CSFV） is currently classified into the 11 subgenotypes,of which subgenotype 2.1 is distributed worldwide and showing more genetic diversity than other *** to this report,subgenotype 2.1 was divided into three sub-subgenotypes（2.1a-2.1c）.To further analyze the genetic diversity of CSFV isolates in china,39 CSFV isolates collected between 2004-2012 in two Chinese provinces Guangxi and Guangdong were sequenced and subjected to phylogenetic analysis together with reference sequences retrieved from Gen *** analyses based on the 190-nt and/or 1119-nt full length E2 gene fragments showed that current CSFV subgenotype 2.1 virus isolates in the world could be divided into 10 sub-subgenotypes（2.1a-2.1j） and the 39 isolates collected in this study were grouped into 7 of them（2.1a-2.1c and 2.1g-2.1j）.Among the 10 sub-subgenotypes,2.1d-2.1j were newly ***-subgenotypes 2.1d isolates were circulated only in India,however the rest 9 sub-subgenotypes were from china with some of them closely related to isolates from European and neighboring Asian *** to the temporal and spatial distribution of CSFV subgenotype 2.1 isolates,the newly classified 10 sub-subgenotypes were further categorized into three groups:dominant sub-subgenotype,minor sub-subgenotype and silent sub-subgenotype,and each sub-subgenotype can be found only in certain geographical *** together,this study reveals the complex genetic diversity of CSFV subgenotype 2.1 and improves our understanding about the epidemiological trends of CSFV subgenotype 2.1 in the world,particularly in china.

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信息自组织对微博信息传播的影响机理研究

情报科学 2018年第10期36卷 36-41页

作者：丁越张静崔金栋吉林大学管理学院吉林长春130022 吉林大学商学院吉林长春130012 东北电力大学经济管理学院吉林吉林132012

【目的/意义】针对舆论管控尤其是微博信息管控这一热点问题,利用信息自组织理论揭示微博信息传播规律具有重要意义。【方法/过程】将信息的自组织作为主线,重点研究微博信息在传播的整个过程中信息内容自组织、用户关系自组织以及用户... 详细信息

【目的/意义】针对舆论管控尤其是微博信息管控这一热点问题,利用信息自组织理论揭示微博信息传播规律具有重要意义。【方法/过程】将信息的自组织作为主线,重点研究微博信息在传播的整个过程中信息内容自组织、用户关系自组织以及用户传播过程自组织,揭示了微博信息自组织的运行机理,阐述了微博信息自组织对信息传播效果产生的各种影响。【结果/结论】通过实证分析论证了研究所得到结果的正确性;最后给出了相应的政策建议,力图实现研究微博信息、管控微博传播的目的。

关键词：微博信息信息自组织信息传播协同与竞争

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高精度亚像素显示技术动态天体模拟器

光学精密工程 2018年第5期26卷 1037-1045页

作者：陈启梦张国玉张健孟遥长春理工大学光电工程学院吉林长春130022 吉林省光电测控仪器工程技术研究中心吉林长春130022 长光卫星技术有限公司吉林长春130033

为了解决常规姿态敏感器非在轨标定设备实测结果与设计精度存在偏差、且缺乏模拟目标天体特征功能的实际问题,本文提出一种利用多棱镜结合的LCOS光学拼接方式与亚像素显示技术相结合的高精度动态天体模拟器设计方法,实现对星点位置以及... 详细信息

为了解决常规姿态敏感器非在轨标定设备实测结果与设计精度存在偏差、且缺乏模拟目标天体特征功能的实际问题,本文提出一种利用多棱镜结合的LCOS光学拼接方式与亚像素显示技术相结合的高精度动态天体模拟器设计方法,实现对星点位置以及目标天体特征的精确模拟。详细论述了传统LCOS拼接形式两片光阀对比度低的原因,提出了基于两片PBS和两片半反半透镜的拼接架构改进方案;设计了小畸变、复消色差的高成像质量准直光学系统。重点阐述了亚像素显示技术的思想及方法,利用亚像素技术分别对动态星图和目标天体进行仿真并进行了实验测试。结果表明:模拟器的两片LCOS显示对比度相同,动态星图的星间角距误差小于±6″、星等模拟范围达到连续8个等级、星等模拟精度优于±0.3mV;可以提供目标天体特征模拟图片。高精度亚像素显示技术动态天体模拟器消除了LCOS显示对比度差异,达到了姿态敏感器识别特征点的准确性要求,基本可以满足敏感器非在轨精度标定与功能测试的要求。

关键词：光学系统设计天体模拟 LCOS拼接对比度亚像素显示技术

Ce_(1-x)Nd_xO_(2-δ)固溶体的电子顺磁共振谱和阻抗谱的研究

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化学学报 2007年第10期65卷 989-993页

作者：林晓敏李莉萍苏文辉北华大学理学院物理系吉林132013 吉林大学物理学院长春130023 哈尔滨工业大学理学院

利用溶胶-凝胶方法在800℃焙烧10h后,合成了固溶体Ce1-xNdxO2-δ(x=0.05～0.55),X射线衍射(XRD)测试表明固溶体已经形成立方萤石结构;电子顺磁共振谱(EPR)研究表明在固溶体Ce1-xNdxO2-δ中随着掺杂量x的增大,Ce3+离子含量减少,说明掺杂N... 详细信息

利用溶胶-凝胶方法在800℃焙烧10h后,合成了固溶体Ce1-xNdxO2-δ(x=0.05～0.55),X射线衍射(XRD)测试表明固溶体已经形成立方萤石结构;电子顺磁共振谱(EPR)研究表明在固溶体Ce1-xNdxO2-δ中随着掺杂量x的增大,Ce3+离子含量减少,说明掺杂Nd3+离子可以抑制Ce4+的还原;交流阻抗谱的测量表明固溶体Ce0.9Nd0.1O2-δ具有离子导电特性,600和700℃时的电导率分别为4.25×10-3和1.12×10-2S?cm-1,活化能为0.68eV.

关键词：溶胶-凝胶方法固溶体Ce1-xNdxO2-δ EPR谱电导率