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Chinese Journal of Mechanical Engineering 2023年第3期36卷 18-35页

作者： Jiachao Ji Yulin Jin anping hua Chunhua Zhu Junhua Zhao Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi 214122China Institute of Mechanics and Advanced Materials School of Mechanical EngineeringJiangnan UniversityWuxi 214122China

Carbon nanotube(CNT)networks enable CNTs to be used as building blocks for synthesizing novel advanced materials,thus taking full advantage of the superior properties of individual *** analyses have to be adopted to study the load transfer mechanisms of CNT networks from the atomic scale to the macroscopic scale due to the huge computational *** them,fully resolved structural features include the graphitic honeycomb lattice(atomic),inter-tube stacking(nano)and assembly(meso)of *** an atomic scale,the elastic properties,ultimate stresses,and failure strains of individual CNTs with distinct chiralities and radii are obtained under various loading conditions by molecular *** dependence of the cohesive energies on spacing distances,crossing angles,size and edge effects between two CNTs is analyzed through continuum modeling in *** mesoscale models,which neglect the atomic structures of individual CNTs but retain geometrical information about the shape of CNTs and their assembly into a network,have been developed to study the multi-level mechanism of material deformation and microstructural evolution in CNT networks under stretching,from elastic elongation,strengthening to damage and *** paper summarizes the multiscale theories mentioned above,which should provide insight into the optimal assembling of CNT network materials for elevated mechanical performance.

关键词： Carbon nanotube networks Hierarchical structures Multiscale theories Mesoscale model

Fracture behavior dependent on crack-tip shapes in nanoscale crack-defect monolayer boron nitride sheets

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International Journal of Smart and Nano Materials 2021年第1期12卷 36-48页

作者： Wentao Su Chunhua Zhu anping hua Shanchen Li Junhua Zhao Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxiPR China Institute of Mechanics and Advanced Materials School of Mechanical EngineeringJiangnan UniversityWuxiPR China

Nanoscale defects,including cracks,circular holes,and the triangular-shaped defects,often occur in the growth of boron nitride nanosheets(BNNS).In this study,the fracture behavior of chiral BNNS with different crack-tip shapes and the interactions of nanoscale crack-defects are studied using molecular dynamics(MD)simulations and finite element(FE)*** MD and FE results indicate that the fracture strength of BNNS with two crack tips(t=2)is significantly higher than that with one crack tip(t=1),in which the difference in zigzag(ZZ)direction is more obvious than that in armchair(AC)direction,mainly due to the fact that the change of bond angles near the crack tips is more substantial in the ZZ direction than those in the AC *** results show that the fracture strength of BNNS strongly depends on crack-tip shapes,chiral angles,the defect-to-crack tip spacing and deflection *** against the current MD simulations and FE analysis shows the present results are *** study should be of great importance for enhancing the fracture performance of BNNS by modulating their crack-tip shapes and the interactions of nanoscale crack-defects.

关键词： Boron nitride sheet crack-tip shape fracture behavior molecular dynamics finite element

Occurrence and light response of residual plastid genes in a Euglena gracilis bleached mutant strain OflB2

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Journal of Oceanology and Limnology 2020年第6期38卷 1858-1866页

作者： QIN huan GUO Qingqing LIU Chenchen LI Fenglan ZHANG hua CHU Zihan WANG Jiangxin LEI anping Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science Shenzhen Engineering Laboratory for Marine Algal BiotechnologyGuangdong Provincial Key Laboratory for Plant EpigeneticsCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518000China Basis International School SZ Shenzhen 518000China

Euglena gracilis is a unicellular green eukaryotic microalga that features characteristics of both plants and *** photosynthetic function of its chloroplast is easily lost under stress resulting in bleached mutants,while the physiological role of their residual plastid DNAs remains *** this study,we obtained five bleached mutants by ofloxacin(Ofl)treatment,identified 12 residual plastid genes in five bleached mutants,and determined the mRNA levels in the wild type ***(WT)and one bleached mutant(OflB2)under dark and light stimulation conditions by quantitative reverse transcribed PCR(qRTPCR).Results show that the expression of all selected plastid genes in both WT and OflB2 mutant did not change significantly in darkness,while their responses to light stimulation were *** the light stimulation conditions,half of the genes did not change significantly,while most of the other genes were down-regulated in OflB2 mutant and up-regulated in ***,the bleached mutant retains part of the plastid genome and the plastid relic is responsive to *** research will help to understand the functions of residual plastid DNA and evolution of chloroplasts.

关键词： Euglena gracilis bleached mutant residual plastid genes light response

OsSPL18 controls grain weight and grain number in rice

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Journal of Genetics and Genomics 2019年第1期46卷 41-51页

作者： hua Yuan Peng Qin Li Hu Shijie Zhan Shifu Wang Peng Gao Jing Li Mengya Jin Zhengyan Xu Qiang Gao anping Du Bin Tu Weilan Chen Bingtian Ma Yuping Wang Shigui Li Rice Research Institute Sichuan Agricultural University State Key Laboratory of Hybrid Rice Sichuan Agricultural University Station of Foundation and Improved Seed-breeding of Sichuan Province State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of Sciences

Grain weight and grain number are two important traits directly determining grain yield in rice. To date,a lot of genes related to grain weight and grain number have been identified; however, the regulatory mechanism underlying these genes remains largely unknown. In this study, we studied the biological function of OsSPL18 during grain and panicle development in rice. Knockout (KO) mutants of OsSPL18exhibited reduced grain width and thickness, panicle length and grain number, but increased tiller number. Cytological analysis showed that OsSPL18 regulates the development of spikelet hulls by affecting cell proliferation. qRT-PCR and GUS staining analyses showed that OsSPL18 was highly expressed in developing young panicles and young spikelet hulls, in agreement with its function in regulating grain and panicle development. Transcriptional activation experiments indicated that OsSPL18is a functional transcription factor with activation domains in both the N-terminus and C-terminus, and both activation domains are indispensable for its biological functions. Quantitative expression analysis showed that DEP1, a major grain number regulator, was significantly down-regulated in OsSPL18 KO *** yeast one-hybrid and dual-luciferase (LUC) assays showed that OsSPL18 could bind to the DEP1promoter, suggesting that OsSPL18 regulates panicle development by positively regulating the expression of DEP1. Sequence analysis showed that OsSPL18 contains the OsmiR156k complementary sequence in the third exon; 5?RLM-RACE experiments indicated that OsSPL18 could be cleaved by OsmiR156k. Taken together, our results uncovered a new OsmiR156k-OsSPL18-DEP1 pathway regulating grain number in rice.

关键词： OsSPL18 Grain weight Grain number DEP1 Rice

Twelve-week study of moxa smoke: occupational exposure in female rats

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Journal of Traditional Chinese Medicine 2019年第2期39卷 207-212页

作者： Han Li huang Chang Yang Jia Wang Lei Bai hua Liu Juntian Jian huang Liu Ping Lim MinYee Ju Dahong Lao Lixing Liu Changxi Zhao Baixiao Sun Wen Xu anping Yang Xiuyan Zhang Cong He Rui Shool of Chinese medicine Beijing University of Chinese MedicineBeijing 100029China Shool of Acupuncture-Moxibustion and Tuina Beijing University of Chinese MedicineBeijing 100029China Department of Acupunture Beijing Dong Fang HospitalBeijing 100078China Healthcare Management Center Beijing Electric Power HospitalBeijing 100073China Medical Experimental Center China Academy of Chinese Medical SciencesBeijing 100700China School of Chinese Medicine The University of Hong KongHong Kong 999077China

OBJECTIVE: To assess the toxicity of moxa smoke in ***: Forty-eight female Wister rats were randomly divided into 4 groups(n = 12/group) to simulate moxa smoke exposure in Chinese medicine clinics(CMCs): the control group, and three moxa-smoke exposed groups of PM10 mass concentrations 3-5, 7-9 and 27-30 mg/m^3, *** concentrations were 1 ×, 2-3 ×, and 7-9 ×fold the concentrations found in CMCs. Exposures continued for 12 weeks(200 min/d, 5 d/week).RESULTS: No deaths were noted. After the exposure, the body weights, ratios of organ weight to body weight, urinary parameters, hematological parameters, clinical chemistry parameters and microscopic examinations revealed no obvious ***: Moxa smoke did not induce toxic effects in female rats in the study. These findings provide new evidence to the toxicity of moxa smoke.

关键词： Moxibustion Artemisia Smoki ng,non-tobacco products Toxicity tests

基于职业导向的“课证融合”人才培养模式实践与思考--以浙江金融职业学院国际贸易实务专业为例

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中国高教研究 2008年第11期 58-60页

作者：章安平方华浙江金融职业学院国际商务系副主任、副教授浙江金融职业学院教务处处长、研究员浙江杭州310018

高职院校财经管理类专业如何践行具有自身特色的工学结合人才培养模式,有效提升人才培养质量,需要积极创新发展路径,破解改革难题。笔者以浙江金融职业学院国际贸易实务专业,探索基于职业导向的"课证融合"人才培养模式改革为例,阐述了... 详细信息

高职院校财经管理类专业如何践行具有自身特色的工学结合人才培养模式,有效提升人才培养质量,需要积极创新发展路径,破解改革难题。笔者以浙江金融职业学院国际贸易实务专业,探索基于职业导向的"课证融合"人才培养模式改革为例,阐述了该专业人才培养模式的内涵与条件,剖析了实施过程中的主要问题及已经取得的实践成效,并从政府、学校和企业三个层面提出高职院校财经管理类专业实施"课证融合"人才培养模式改革的建议。

关键词：职业导向课证融合人才培养模式

Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells

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National Science Review 2022年第7期9卷 106-115页

作者： Zhenghui Luo Ruijie Ma Jianwei Yu Heng Liu Tao Liu Fan Ni Jiahao Hu Yang Zou anping Zeng Chun-Jen Su U-Ser Jeng Xinhui Lu Feng Gao Chuluo Yang He Yan Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and EngineeringShenzhen University Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction Hong Kong University of Science and Technology (HKUST) Hong Kong University of Science and Technology-Shenzhen Research Institute Department of Physics Chemistry and Biology (IFM) Link?ping University Department of Physics Chinese University of Hong Kong Synchrotron Radiation Research Center Hsinchu Science Park Department of Chemical Engineering Tsing Hua University Hong Kong University of Science and Technology (HKUST) Light-Emitting Diode and Flat Panel Display Technology Research & Development Center Hong Kong University of Science and Technology (HKUST) Foshan Research Institute for Smart Manufacturing

Rationally utilizing and developing synthetic units is of particular significance for the design of high-performance non-fullerene small-mole cule acceptors(SMAs).Here,a thieno[3,2-b]pyrrole synthetic unit was employed to develop a set of SMAs(ThPy1,ThPy2,ThPy3 and ThPy4) by changing the number or the position of the pyrrole ring in the central core based on a standard SMA of IT-4 Cl,compared to which the four thieno[3,2-b] pyrrole-based acceptors exhibit bathochromic absorption and upshifted frontier orbital energy level due to the strong ele ctron-donating ability of *** a result,the polymer solar cells(PSCs) of the four thieno[3,2-b] pyrrole-based acceptors yield higher open-circuit voltage and lower energy loss relative to those of the IT-4 Cl-based *** is more,the ThPy3-based device achieves a power conversion efficiency(PCE)(15.3%) and an outstanding fill factor(FF)(0.771) that are superior to the IT-4 Cl-based device(PCE=12.6%,FF=0.758).The ThPy4-based device realizes the lowest energy loss and the smallest optical band gap,and the ternary PSC device based on PM6:BTP-eC9:ThPy4 exhibits a PCE of 18.43% and a FF of ***,this work sheds light on the great potential of thieno[3,2-b]pyrrole-based SMAs in realizing low energy loss and high PCE.

关键词： thieno[3,2-b]pyrrole small-molecule acceptors energy loss intramolecular non-covalent interactions polymer solar cells

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室内用分类塑料垃圾桶盖热流道注塑模设计

工程塑料应用 2007年第1期35卷 57-60页

作者：夏华黄虹谭安平刘路兴重庆工学院材料学院重庆400050 山东省塑料研究开发中心济南250002

室内用分类塑料垃圾桶盖注塑模具为单型腔模具结构,采用一个点浇口且设在塑料件背面的中心部位;选用热主流道的热流道形式,开模时塑料件留在定模一边,推出机构和侧向抽芯机构也设在定模。该模具结构简单,能实现全自动生产。

关键词：注塑模热流道热主流道定模推出机构

金刚砂辅助农杆菌转化狗尾草种子高效遗传转化体系的建立

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分子植物育种 2017年第12期15卷 4955-4960页

作者：赵辉郭静远孔华郭安平中国热带农业科学院热带生物技术研究所海口571101

狗尾草(Setaria viridis)是研究C4植物光合作用的优秀模型,同时也是研究非生物胁迫耐受性和生物能源原料的模型。经济、简单、灵活、快速、高效的转基因技术是模式植物应用发展的基础,本研究直接以狗尾草成熟种子为外植体,经过种子活化... 详细信息

狗尾草(Setaria viridis)是研究C4植物光合作用的优秀模型,同时也是研究非生物胁迫耐受性和生物能源原料的模型。经济、简单、灵活、快速、高效的转基因技术是模式植物应用发展的基础,本研究直接以狗尾草成熟种子为外植体,经过种子活化、金刚砂辅助农杆菌转化、抗性愈伤或丛生芽诱导、成苗、生根等基本过程,建立了一套新的狗尾草组织培养农杆菌转化技术,是国内外直接利用狗尾草活化种子进行农杆菌转化的初次报道。新的转化技术转化周期缩短为9~10周,转化效率A10达19.2%,ME34达22.2%,该方法对狗尾草品系的依赖性小,更适于难以利用已有方法建立转化体系的品系或野生种的转化。

关键词：狗尾草遗传转化金刚砂农杆菌介导法

基于多重环境时间相似理论的燃气轮机热通道部件剩余寿命预测方法

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中国电机工程学报 2013年第5期33卷 95-101,16页

作者：万安平陈坚红盛德仁胡亚才姚华陈辉浙江大学热工与动力系统研究所浙江省杭州市310027 山东电力工程咨询院有限公司山东省济南市250013

为了制定科学、成本合理的燃气轮机维修策略,解决当前燃气轮机运行维修管理费用高的问题,提出一种基于多重环境时间相似(METS)理论的燃气轮机剩余寿命预测方法。该方法引入同目标机组具有相似运行环境的同类型机组作为参考机组,利用经... 详细信息

为了制定科学、成本合理的燃气轮机维修策略,解决当前燃气轮机运行维修管理费用高的问题,提出一种基于多重环境时间相似(METS)理论的燃气轮机剩余寿命预测方法。该方法引入同目标机组具有相似运行环境的同类型机组作为参考机组,利用经验运行数据,求解其在实际运行条件与基准运行条件下寿命评估参数(运行时间和启停次数)的相似系数。基于METS理论,通过计算目标机组在实际运行条件下的实际运行时间和启动次数,得到其在基准运行条件下的等效运行时间和启动次数,将计算结果与最大维修间隔比较,预测目标机组的剩余寿命。为准确计算目标机组在实际工作条件下的运行寿命,克服传统人工统计的不足,提出实时寿命和历史寿命的计算方法。最后,依据上述方法,开发了实现程序,并以某厂燃气轮机热通道部件的剩余寿命预测计算为例,验证了该方法的有效性和实用性。

关键词：燃气轮机相似原理多重环境时间相似(METS)理论剩余寿命预测