检索结果-南通市图书馆

Agricultural Sciences in China 2006年第2期5卷 155-160页

作者： HAO Jun-jie CHEN Jun-ying CHEN xin-jian CUI Dang-qun cheng xi-yong College of Agronomy Henan Agricultural University Zhengzhou 450002 P.R.China Institute of Plant Protection Henan Academy of Agricultural Sciences Zhengzhou 450002 P.R. China

The biosynthetic time and accumulations of A-, B-, and C-type glutenin subunits in 7 winter wheat cultivars with different quality （strong, medium, weak gluten） were analyzed by SDS-PAGE. The results showed that no glutenin subunit was observed within 8 d after anthesis. Parts or all A-, B-, and C-type subunits appeared around day 12 in different cultivars. Other A-, B-, and C-type subunits appeared gradually. The accumulation of A-, B-, and C-type subunits fluctuated before maturity. The results of analysis of correlation between the ratios of A/T （total content of glutenin subunits）, A/C, AJ （B＋C）, （A＋B）/C, and （A＋B）/T and SDS-sedimentation value suggested that they were more significant. The negative correlation between the ratio of （B＋C）/T and SDS-sedimentation value was more significant, and the correlations between the ratio C/T and the SDS-sedimentation value were significantly negative.

关键词： wheat glutenin subunits dynamic accumulation quality

Species of Inorganic Phosphate Solubilizing Bacteria in Red Soil and the Mechanism of Solubilization

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Pedosphere 1993年第3期3卷 285-288页

作者： LUOAN－cheng SUNxi 等 DpartmentofSoilScienceandPlantNutrition ZhejiangAgriculturalUniversityHangzhou310029（China） Dpartmen

INTRODUCTION The insoluble phosphates which can not be directly absorbed by plants are the mai forms of inorganic phosphate in soil. These kinds of phosphates can be solubilized by several species of bacteria which are widely spread in soil especially in rhizosphere where70% of the bacteria are capable of solubilizing inorganic phosphate. Many researchers re-

关键词： organic acid phosphate-solubilizing bacteria red soil

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周期背景下怪波的激发和调制

光子学报 2020年第6期49卷 215-220页

作者：李淑青程永喜常锋太原工业学院理学系太原030008

为了研究怪波在周期背景中的激发和演化情况,以含有周期外势的自聚焦非线性薛定谔方程为模型,采用快速分步傅里叶算法,讨论了在两种周期势(实势和复势)的情况下,怪波的激发和演化情况.研究表明:在两种周期势背景下都能通过平面波加微扰... 详细信息

为了研究怪波在周期背景中的激发和演化情况,以含有周期外势的自聚焦非线性薛定谔方程为模型,采用快速分步傅里叶算法,讨论了在两种周期势(实势和复势)的情况下,怪波的激发和演化情况.研究表明:在两种周期势背景下都能通过平面波加微扰来激发怪波;在实周期背景下,通过改变周期势的振幅和周期能够产生不同的光学现象;在复周期背景下,通过同样的初始波能够激发一种超大怪波,而且实部振幅对怪波具有能量耗散和减速作用,虚部振幅对怪波具有能量增益和加速作用,选择合适的实部振幅与虚部振幅可以产生强度不同的大怪波.研究结果有助于在光晶格中捕获和调节怪波,以及获得高功率波.

关键词：非线性薛定谔方程怪波快速分步傅里叶算法周期势 Parity-time对称

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气体搅拌萃取塔有机分散相滞液率的计算

天津大学学报 2007年第3期40卷 260-264页

作者：王莅程永喜吕树祥米镇涛天津大学绿色合成与转化教育部重点实验室天津300072 天津科技大学材料科学与化工学院天津300222

研究了在气体搅拌筛板萃取塔中,空气-蒽醌工作液-水三相体系的流体力学性能,讨论了气相、有机分散相和连续相表观流速对有机分散相滞液率的影响．结果表明,当气相表观流速和有机分散相表观流速增大时,有机分散相滞液率均增大,而连续相... 详细信息

研究了在气体搅拌筛板萃取塔中,空气-蒽醌工作液-水三相体系的流体力学性能,讨论了气相、有机分散相和连续相表观流速对有机分散相滞液率的影响．结果表明,当气相表观流速和有机分散相表观流速增大时,有机分散相滞液率均增大,而连续相表观流速对有机分散相滞液率没有影响．在有机分散相相对于连续相的相对速度计算公式的基础上,提出了计算有机分散相滞液率的方法．用该方法计算了文中实验物系和文献中提到的气-液-液三相或液-液两相体系的有机分散相滞液率,计算结果与相应实验及文献数据符合良好,相对偏差范围为4．9％- 15．5％．

关键词：气体搅拌有机分散相滞液率过氧化氢

基于Matlab实现纳秒脉冲气体放电波形的分析与处理

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山西大学学报(自然科学版) 2010年第3期33卷 401-404页

作者：程永喜董有尔山西大学理论物理研究所山西大学物理实验中心

研究了气体放电中的等离子体状态形成的规律,通过快速傅里叶变换和Matlab软件对不同间距下的纳秒脉冲波形进行了处理,发现等离子振荡的频率与等离子体的长度成反比,气体放电的间距越大,等离子体振荡的频率越低.

关键词：气体放电碰撞电离等离子体振荡 FFT程序

Mutual regulation of microglia and astrocytes after Gas6 inhibits spinal cord injury

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Neural Regeneration Research 2025年第2期20卷 557-573页

作者： Jiewen Chen xiaolin Zeng Le Wang Wenwu Zhang Gang Li xing cheng Peiqiang Su yong Wan xiang Li Department of Spine Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Guangdong Province Key Laboratory of Orthopedics and Traumatology GuangzhouGuangdong ProvinceChina

Invasive inflammation and excessive scar formation are the main reasons for the difficulty in repairing nervous tissue after spinal cord *** and astrocytes play key roles in the spinal cord injury micro-environment and share a close ***,the mechanisms involved remain *** this study,we found that after spinal cord injury,resting microglia(M0)were polarized into pro-inflammatory phenotypes(MG1 and MG3),while resting astrocytes were polarized into reactive and scar-forming *** expression of growth arrest-specific 6(Gas6)and its receptor Axl were significantly down-regulated in microglia and astrocytes after spinal cord *** vitro experiments showed that Gas6 had negative effects on the polarization of reactive astrocytes and pro-inflammatory microglia,and even inhibited the cross-regulation between *** further demonstrated that Gas6 can inhibit the polarization of reactive astrocytes by suppressing the activation of the Yes-associated protein signaling ***,in turn,inhibited the polarization of pro-inflammatory microglia by suppressing the activation of the nuclear factor-κB/p65 and Janus kinase/signal transducer and activator of transcription signaling *** vivo experiments showed that Gas6 inhibited the polarization of pro-inflammatory microglia and reactive astrocytes in the injured spinal cord,thereby promoting tissue repair and motor function ***,Gas6 may play a role in the treatment of spinal cord *** can inhibit the inflammatory pathway of microglia and polarization of astrocytes,attenuate the interaction between microglia and astrocytes in the inflammatory microenvironment,and thereby alleviate local inflammation and reduce scar formation in the spinal cord.

关键词： astrocytes Axl cell polarization Gas6 Hippo signal inflammatory micro-environment intercellular interaction microglia single-cell sequencing spinal cord injury

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文学能变成一个生产?

中文论坛 2017年第2期 187-189页

作者：程永新《收获》杂志

＂文学生产新场域＂这个题目非常好,这是我们一直在困惑,一直在思考的。其实它里面有两个问题,从当代文学史的走向来看,其实到了21世纪之后,所谓的过去那种严肃文学、纯文学是到了一定的瓶颈或者说没有往前走,没有像20世纪80年代到90年... 详细信息

＂文学生产新场域＂这个题目非常好,这是我们一直在困惑,一直在思考的。其实它里面有两个问题,从当代文学史的走向来看,其实到了21世纪之后,所谓的过去那种严肃文学、纯文学是到了一定的瓶颈或者说没有往前走,没有像20世纪80年代到90年代,那种迅猛往前推进的速度,到了21世纪之后慢下来了。

关键词：文学生产 20世纪80年代成一 21世纪当代文学史严肃文学 90年代纯文学

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肼混合物胶体推进剂的热分解特性研究

推进技术 2016年第9期37卷 1780-1785页

作者：史良煜程永喜方涛徐森刘大斌仲倩王凯南京理工大学化工学院江苏南京210094 北京航天试验技术研究所北京100074 国家民用爆破器材质量监督检验中心江苏南京210094

为了评估肼混合物胶体推进剂的热安全性,采用差示扫描量热仪(DSC)和绝热加速量热仪(ARC),对肼混合物胶体推进剂的热分解特性进行了研究。DSC的实验结果表明,在2,5,10和20K·min-1四种升温速率下推进剂的初始热分解温度分别为185.73,227.... 详细信息

为了评估肼混合物胶体推进剂的热安全性,采用差示扫描量热仪(DSC)和绝热加速量热仪(ARC),对肼混合物胶体推进剂的热分解特性进行了研究。DSC的实验结果表明,在2,5,10和20K·min-1四种升温速率下推进剂的初始热分解温度分别为185.73,227.20,230.37和245.19℃;根据DSC的试验结果,利用Kissinger法计算得到热分解活化能为181.80k J·mol-1。在ARC实验中,肼混合物胶体推进剂在理想绝热条件下的初始分解温度为180.58℃,最大温升速率达到0.6237°C·min-1,绝热温升为227.92℃,最高温度为408.50℃,计算得到其热分解活化能为121.77k J·mol-1。比较DSC与ARC的试验结果,两者基本一致;热分析试验中推进剂先经历相变吸热过程,再进行分解放热。

关键词：胶体推进剂热分解动力学热稳定性

Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan Han Qifeng Han Yi‑Bing cheng yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

铁磁半导体/半导体/铁磁半导体异质结中光子辅助量子输运特性

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山西大学学报(自然科学版) 2011年第4期34卷 612-616页

作者：程永喜聂一行山西大学理论物理研究所

基于有效质量近似和Floquet理论,考虑自旋-轨道耦合和外场驱动作用下,研究铁磁半导体/半导体/铁磁半导体异质结中的量子输运特性.结果表明自旋-轨道相互作用不仅使自旋发生翻转,而且束缚态能级发生劈裂,从而使电导率中出现两个Fano共振... 详细信息

基于有效质量近似和Floquet理论,考虑自旋-轨道耦合和外场驱动作用下,研究铁磁半导体/半导体/铁磁半导体异质结中的量子输运特性.结果表明自旋-轨道相互作用不仅使自旋发生翻转,而且束缚态能级发生劈裂,从而使电导率中出现两个Fano共振峰.势阱两边的磁化强度以及两边磁化强度之间的夹角对自旋翻转和共振位置具有调制作用.

关键词：自旋轨道耦合半导体异质结量子输运