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计量学报 2005年第2期26卷 189-192页

作者：王伟潘春秀马鞍山出入境检验检疫局安徽马鞍山243011 浙江大学化学系浙江杭州310027

分析了光度法测定钢铁及合金中锰含量的误差来源。对测定过程中的标准溶液、标准曲线、样品称量以及使用仪器带来的不确定度进行了分析。依据分层评定理论进行了分布计算和整体合成。

关键词：计量学光度法锰含量不确定度

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气动AMT离合器执行机构的动力学仿真

北京理工大学学报 2013年第6期33卷 570-574页

作者：席军强潘春北京理工大学机械与车辆学院北京100081

为分析气动AMT离合器执行机构的动力学性能,在对执行机构系统进行深入分析和研究的前提下,推导并建立了单作用气缸、离合器操纵传动机构的动态数学模型.通过Matlab/Simulink离线仿真分析了系统的动态特性.建模过程中考虑了操纵机构的力... 详细信息

为分析气动AMT离合器执行机构的动力学性能,在对执行机构系统进行深入分析和研究的前提下,推导并建立了单作用气缸、离合器操纵传动机构的动态数学模型.通过Matlab/Simulink离线仿真分析了系统的动态特性.建模过程中考虑了操纵机构的力、位移传递特性,并结合气压驱动的特点对气体运用了等熵模型分析,实车实验结果验证了仿真模型的准确性.

关键词：离合器执行机构单作用气缸机械式自动变速器等熵模型

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新媒体环境下教师教学能力发展研究

中国电化教育 2014年第5期 85-88页

作者：潘淳山东省临沂沂州实验学校山东临沂276004

教师教学能力的发展是教师职业生涯的重要过程,在这个过程中,新媒体将对其有着重要的促进与影响作用,是教师教学能力提高重要因素。该文从教师教学能力发展的内容和影响因素出发,探讨新媒体技术对教师教学能力发展的影响及作用,并提出... 详细信息

教师教学能力的发展是教师职业生涯的重要过程,在这个过程中,新媒体将对其有着重要的促进与影响作用,是教师教学能力提高重要因素。该文从教师教学能力发展的内容和影响因素出发,探讨新媒体技术对教师教学能力发展的影响及作用,并提出提高教师教学能力的对应措施。

关键词：新媒体教师教学能力影响

panax Notoginseng Saponins Restrains Ischemia-reperfusion-induced Rat Mesenteric Microcirculatory Disturbance

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World Journal of Traditional Chinese Medicine 2015年第3期1卷 1-8页

作者： Yu Zhang Yu-Ying Liu Quan Li chun-Shui pan Jing-Yu Fan Chuan-She Wang Kai Sun Jing-Yan Han Department of Integration of Chinese and Western Medicine School of Basic Medical SciencesPeking University Key Laboratory of Microcirculation State Administration of Traditional Chinese Medicine of the People’s Republic of China Key Laboratory of Stasis and Phlegm State Administration of Traditional Chinese Medicine of the People’s Republic of China Tasly Microcirculation Research Center Peking University Health Science Center

Objective: To investigate the effect of panax notoginseng saponins(PNS) on ischemia reperfusion(I/R) induced rat mesenteric microcirculatory ***: Male Wistar rats weighting 200–250 g were subjected to 10 min ligation of the superior mesenteric artery and vein, followed by60 min reperfusion. PNS(5 mg/kg/hr) was continuously administrated starting from 10 min before ischemia or 10 min after reperfusion until60 min after reperfusion via left jugular vein. Leukocytes adhesion, mast cell degranulation, endothelial peroxidation, and albumin leakage of rat mesenteric venules were observed. Serum myeloperoxidase(MPO) level, intercellular adhesion molecule-1(ICAM-1) expression and Src phosphorylation were ***: PNS ameliorated leukocyte adhesion and mast cell degranulation, while with no obvious effects on endothelial peroxidation and albumin leakage. In addition, PNS inhibited serum MPO increase, intestinal ICAM-1 expression and Src phosphorylation induced by I/***: PNS ameliorated I/R-induced leukocyte adhesion and mast cell degranulation, the former is related to its inhibition of Src phosphorylation and ICAM-1 expression.

关键词： ICAM-1 Src leukocytes adhesion mast cell degranulation panax notoginseng

BmCyclin B and BmCyclin B3 are required for cell cycle progression of silkworm,Bombyx mori

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BmCyclin B and BmCyclin B3 are required for cell cycle progr...

Characteristics and source apportionment of ambient volatile organic compounds and ozone generation sensitivity in urban Jiaozuo,China

第十届家（柞）蚕遗传育种及良种繁育学术研讨会

作者： pan MinHui HONG KaiLi CHEN XiangYun pan chun CHEN XueMei KUANG XiuXiu LU Cheng State Key Laboratory of Silkworm Genome Biology Southwest University

Cyclin B is an important regulator of the G2 to M phase in the cell cycle. The silkworm genomic database showed that there are two Cyclin B genes in the silkworm（Bombyx mori）, BmCyclin B and BmCyclin B3. Using silkworm ESTs data, the BmCyclin B3（EU074796） gene was cloned. Its complete cDNA length was 1,665 bp and the ORF was 1,536 bp with six introns and seven exons. The BmCyclin B3 gene encoded 511 amino acids, and the predicted molecular weight was 57.8 kD with an isoelectric point of 9.18. It consisted of one protein damage box and two cyclin boxes. Cell cycle arrest in G2 or M phase in BmN-SWU1 cells could be induced by RNA interference-mediated reduction of BmCyclin B and BmCyclin B3 expression, thus inhibiting the cell proliferation. These results suggest that BmCyclin B and BmCyclin B3 are necessary for completing the cell cycle in silkworm cells.

关键词： Bombyx mori cell cycle BmCyclin B BmCyclin B3 cell proliferation

来源： cnki会议评论

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Journal of Environmental Sciences 2024年第4期138卷 607-625页

作者： Pengzhao Li chun Chen Dan Liu Jie Lian Wei Li Chuanyi Fan Liangyu Yan Yue Gao Miao Wang Hang Liu Xiaole pan Jing Mao State Centre for International Cooperation on Designer Low-Carbon and Environmental Materials School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Henan Key Laboratory of Environmental Monitoring Technology Henan Ecological Environment Monitoring and Safety CenterZhengzhou 450046China Jiaozuo Ecological Environment Monitoring Center of Henan Province Jiaozuo 454003China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

In recent years,many cities have taken measures to reduce volatile organic compounds(VOCs),an important precursor of ozone(O_(3)),to alleviate O_(3) pollution in China.116 VOC species were measured by online and offline methods in the urban area of Jiaozuo from May to October in 2021 to analyze the compositional *** sources were analyzed by a positive matrix factorization(PMF)model,and the sensitivity of ozone generation was determined by ozone isopleth plotting research(OZIPR)*** results showed that the average volume concentration of total VOCs was 30.54 ppbv and showed a bimodal feature due to the rush-hour traffic in the morning and at *** most dominant VOC groups were oxygenated VOCs(OVOCs,29.3%)and alkanes(26.7%),and the most abundant VOC species were acetone and ***,based on the maximum incremental reactivity(MIR)method,the major VOC groups in terms of ozone formation potential(OFP)contribution were OVOCs(68.09μg/m^(3),31.5%),aromatics(62.90μg/m^(3),29.1%)and alkene/alkynes(54.90μg/m^(3),25.4%).This indicates that the control of OVOCs,aromatics and alkene/alkynes should take *** sources of VOCs were quantified by PMF,including fixed sources of fossil fuel combustion(27.8%),industrial processes(25.9%),vehicle exhaust(19.7%),natural and secondary formation(13.9%)and solvent usage(12.7%).The empirical kinetic modeling approach(EKMA)curve obtained by OZIPR on O_(3) exceedance days indicated that the O_(3) sensitivity varied in different *** results provide theoretical support for O_(3) pollution prevention and control in Jiaozuo.

关键词： Volatile organic compounds(VOCs) Online and offline measurement Ozone formation potential(OFP) Positive matrix factorization(PMF) Ozone isopleth plotting research(OZIPR) Jiaozuo

A rare missense PAX6 mutation causes atypical aniridia in a three-generation Chinese family

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 466-472页

作者： Zhi-Bo Lin chun-Yun Feng Jin Li An-Peng pan Hai-Sen Sun A-Yong Yu Shi-Hao Chen National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Department of Ophthalmology the Quzhou Affiliated Hospital of Wenzhou Medical UniversityQuzhou People’s HospitalQuzhou 324000Zhejiang ProvinceChina

●AIM:To investigate the molecular diagnosis of a threegeneration Chinese family affected with aniridia,and further to identify clinically a PAX6 missense mutation in members with atypical aniridia.●METHODS:Eleven family members with and without atypical aniridia were *** family members underwent comprehensive ophthalmic examinations.A combination of whole exome sequencing(WES)and direct Sanger sequencing were performed to uncover the causative mutation.●RESULTS:Among the 11 family members,8 were clinically diagnosed with congenital aniridia(atypical aniridia phenotype).A rare heterozygous mutation c.622C>T(***208Trp)in exon 8 of PAX6 was identified in all affected family members but not in the unaffected members or in healthy control subjects.●CONCLUSION:A rare missense mutation in the PAX6 gene is found in members of a three-generation Chinese family with congenital atypical *** result contributes to an increase in the phenotypic spectrum caused by PAX6 missense heterozygous variants and provides useful information for the clinical diagnosis of atypical aniridia,which may also contribute to genetic counselling and family planning.

关键词： PAX6 gene atypical aniridia missense mutation mutation

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基于属性范畴的“问题”新义再研究

汉语学习 2021年第4期 73-80页

作者：潘纯刘云华中农业大学文法学院武汉430070 华中师范大学文学院武汉430079

本文针对方清明(2011、2017)与《现代汉语词典》(第7版)对“问题”新义归属的不同处理,从三个方面对其进行重新分析。从定位上看,“问题”新义应该与已有义项合并;从定义上看,合并后的“问题”新义需要进一步修改完善;从定性上看,基于... 详细信息

本文针对方清明(2011、2017)与《现代汉语词典》(第7版)对“问题”新义归属的不同处理,从三个方面对其进行重新分析。从定位上看,“问题”新义应该与已有义项合并;从定义上看,合并后的“问题”新义需要进一步修改完善;从定性上看,基于属性范畴视角,表新义的“问题”既不是属性词也不是抽象名词,而是属性名词。

关键词： “问题” 新义属性范畴属性名词

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现代农业的主导功能及其可持续发展

农业现代化研究 2012年第5期33卷 548-551页

作者：张攀春贵阳学院贵州贵阳550005

现代农业的主导功能包括经济、生态调节、就业和生活保障、休闲和文明传承等多功能,它从传统农业的单一经济功能向多功能拓展,并受到自然、经济和社会的三重属性制约。为了现代农业的可持续发展,必须通过政府对农业的强力保护和支持,帮... 详细信息

现代农业的主导功能包括经济、生态调节、就业和生活保障、休闲和文明传承等多功能,它从传统农业的单一经济功能向多功能拓展,并受到自然、经济和社会的三重属性制约。为了现代农业的可持续发展,必须通过政府对农业的强力保护和支持,帮助农户克服农业的蛛网波动,缓解农业所受自然、经济和社会属性的制约,实现现代农业主导功能的多元拓展。

关键词：现代农业经济功能生态调节功能就业和生活保障功能休闲和文明传承功能蛛网波动可持续发展

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具有清洗工艺的单臂组合设备终止暂态调度

控制理论与应用 2021年第6期38卷 784-794页

作者：潘春荣郭文有江西理工大学机电工程学院江西赣州341000

随着多品种小批量生产模式的普及,导致了组合设备频繁的暂态加工过程.为了提高组合设备的生产柔性,同时考虑晶圆驻留时间约束和腔室清洗时间约束,研究了单臂组合设备的终止暂态调度问题.首先,提出了1-周期清洗工艺的暂态调度规则,并采... 详细信息

随着多品种小批量生产模式的普及,导致了组合设备频繁的暂态加工过程.为了提高组合设备的生产柔性,同时考虑晶圆驻留时间约束和腔室清洗时间约束,研究了单臂组合设备的终止暂态调度问题.首先,提出了1-周期清洗工艺的暂态调度规则,并采用了面向资源的Petri网对单臂组合设备的终止暂态过程进行建模,引入避免死锁的变迁触发规则;其次,根据系统的终止暂态时间特性并考虑不同的调度情形,建立了终止暂态调度的线性规划模型;最后,通过实例验证了该方法的可行性.实验结果表明,与运用改进拉式策略的虚拟晶圆方案相比,该调度方案可有效地减少组合设备终止暂态的完工时间,并满足晶圆制造的工艺要求.

关键词：晶圆制造组合设备 Petri网清洗工艺终止暂态