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Combined effects of temperature and humidity on the interaction between tomato and Botrytis cinerea revealed by integration of histological characteristics and transcriptome sequencing

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Horticulture Research 2023年第2期10卷 53-64页

作者： tianzhu li Jie Zhou Jianming li College of Horticulture Northwest Agricultural and Forestry UniversityYangling 712100China

The environment significantly impacts the interaction between plants and pathogens,thus remarkably affecting crop disease ***,the detailed combined mechanisms of temperature and humidity influencing this interaction remain *** this study,the interaction between tomato and Botrytis cinerea in various temperature and humidity conditions was analyzed by histological observation and a dual RNA-seq *** showed that low humidity was not favorable for mycelial growth,resulting in infection *** high and low temperatures at high humidity successfully inhibited pathogenic infection and disease incidence in the tomato plants,thus enhancing their resistance to *** high temperature and high humidity(HH)treatment induced the upregulation of light reaction genes,increased the net photosynthetic rate,and expanded the chloroplast morphology of infected *** HH treatment also inhibited the expression of cell cycle-related genes of ***,interfered with conidial germination andmycelial growth,and damagedmycelial cell *** and high humidity(LH)treatment induced the expression of cell wall modification genes and remodeled the cell wall morphology of tomatoes in response to *** addition,the downregulated fungal catabolic genes and the abnormal increase in electron density ofmycelial cells under LH treatment subsequently reduced the infection ability of *** results further explain the coupled effects of temperature and humidity on plant defenses and pathogen virulence,and provide a potential means to control gray mold.

关键词： inhibited histological humidity

Deep learning-based symbol detection algorithm in IMDD-OOFDM system

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The Journal of China Universities of Posts and Telecommunications 2022年第6期29卷 36-45页

作者： Zhang Huibin li tianzhu liu Haojiang li Zhuotong Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China

In the current research on intensity-modulation and direct-detection optical orthogonal frequency division multiplexing(IMDD-OOFDM) system, effective channel compensation is a key factor to improve system performance. In order to improve the efficiency of channel compensation, a deep learning-based symbol detection algorithm is proposed in this paper for IMDD-OOFDM system. Firstly, a high-speed data streams symbol synchronization algorithm based on a training sequence is used to ensure accurate symbol synchronization. Then the traditional channel estimation and channel compensation are replaced by an echo state network(ESN) to restore the transmitted signal. Finally, we collect the data from the system experiment and calculate the signal-to-noise ratio(SNR). The analysis of the SNR optimized by the ESN proves that the ESN-based symbol detection algorithm is effective in compensating nonlinear distortion.

关键词： echo state network(ESN) channel estimation channel compensation symbol synchronization training sequence

Post-evaluation of a water pollution control plan： methodology and case study

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Frontiers of Environmental Science & Engineering 2015年第4期9卷 712-724页

作者： lin ZENG Xin DONG Siyu ZENG tianzhu ZHANG Jing li Jining CHEN School of Environment Tsinghua University Beijing 100084 China

China has developed more than 20 water pollution control plans for river basins （RBWPs） since 1996. However, the implementation has generally lagged. This paper proposes a three-step, post-evaluation methodology to analyze the implementation result of a RBWP and its influential factors. First, a multi-attribute evaluation method based on an index system is established to score the enforcement results of a RBWP. Indicators measure how well a RBWP has achieved its objectives, which include water quality compliance, pollution load control, project construction, financial inputs, and related management requirements. Second, an interpretive structural model is used to detect the significant factors that affect RBWP implementation. This model can effectively analyze the cause-effect chain and hierarchical relationship among variables. Five groups of factors were identified, namely, plan preparation, water resource endowment, policy, institution, and management. Both qualitative and quantitative methods are employed in the third step to evaluate the extent to which these factors have influenced the execution result of a RBWP, including pre-post contrast, scenario analysis, and correlation analysis. This research then post-evaluated the implementation of the Huai River Basin water pollution control plans （H-RBWPs） over a period of 10 years as a case study. Results showed that the implementation of the H-RBWPs was unsatisfactory during 2001–2005, although it improved during 2006–2010. The poor execution of these plans was partially caused by the underestimation of regional economic development in combination with ineffective industrial structure adjustment policies. Therefore, this case study demonstrates the feasibility and flexibility of the proposed post-evaluation methodology.

关键词： river basin water pollution control plan postplan evaluation multi-attribute comprehensive evaluation,interpretive structural model combined qualitative/quantitative method

Job Satisfaction： linking Perceived Organizational Support, Organizational Justice with Work Outcomes in China

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Frontiers of Business Research in China 2012年第2期6卷 169-200页

作者： Rentao Miao Jianmin Sun Xilin Hou tianzhu li School of Business Administration University of Science and Technology LiaoningAnshan 114051China School of Labor and Human Resources Renmin University of ChinaBeijing 100872China

This study develops and tests a full mediation model that examines the mediating role of job satisfaction in the Chinese context, based on a survey of 424 employees in three small and medium sized enterprises. Data analysis shows a good fit with the full mediation and all four classes of antecedents （i.e., perceived organizational support, procedural, distributive, and interactional justice）. Particularly, procedural justice contributes to the prediction of satisfaction. Job satisfaction is also shown to mediate most antecedent- consequence relationships, except the two between perceived organizational support （POS）--turnover and procedural justice--consequences. Furthermore, there are only four direct links, including POS to citizenship behaviors directed at individuals, distributive justice to turnover intention, interactional justice to citizenship behaviors directed at organizations and turnover. These direct links suggest that job satisfaction does not fully mediate the relationships.

关键词： perceived organizational support (POS) organizational justice job satisfaction work outcomes Chinese context

Schisandrin B exerts anticancer effects on human gastric cancer cells through ROS-mediated MAPK,STAT3,and NF-κB pathways

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BIOCELL 2023年第1期47卷 195-204页

作者： tianzhu li YU ZHANG TONG ZHANG YANNAN li HUI XUE JINGLONG CAO WENSHUANG HOU YINGHUA LUO CHENGHAO JIN Department of Molecular Biology College of Basic Medical ScienceChifeng UniversityChifeng024000China Department of Biochemistry and Molecular Biology College of Life Science and TechnologyHeilongjiang Bayi Agricultural UniversityDaqing163319China Department of Grass Science College of Animal Science and Veterinary MedicineHeilongjiang Bayi Agricultural UniversityDaqing163319China National Coarse Cereals Engineering Research Center Daqing163319China

Schisandrin B(Sch B)is a monomer with anti-cancer and anti-inflammatory effects,which are isolated from the plant Schisandra chinensis(Turcz)*** investigated the anti-gastric cancer(GC)effects of Sch B and its underlying molecular *** Cell Counting Kit-8 assay was used to determine the effects of Sch B on the viability of GC and normal cell ***/propidium iodide staining and flow cytometry were used to assess the apoptosis induction of Sch *** blotting was used to evaluate the effects of Sch B on downstream apoptotic *** DCFH-DA fluorescent probe was used to assess the regulatory effects of Sch B on reactive oxygen species(ROS)levels and related signaling pathways in GC *** results showed that Sch B could regulate the phosphorylation level of mitogen-activated protein kinase(MAPK)by upregulating ROS accumulation in gastric cancer cells,and then reduce the expression of nuclear factor kappa B(NF-κB)and phosphorylated transcription 3(p-STAT3).In addition,Sch B downregulated the cell cycle proteins cyclin-dependent kinase 2/4/6 and cyclin D1/E,and arrested cells in the G0/G1 ***,it also inhibited cell migration,which was reversed with Nacetylcysteine *** summary,Sch B has killing effects on GC cells by upregulating the production of intracellular ROS and regulating the MAPK/STAT3/NF-κB signaling pathway,leading to the migration arrest and apoptosis of GC cells.

关键词： Schisandrin B Gastric cancer Reactive oxygen species Apoptosis Migration Cell cycle

5G企业创新生态系统演化模型:华为公司的案例研究

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科学学与科学技术管理 2023年第1期44卷 141-162页

作者：李妍李天柱辽宁科技大学工商管理学院辽宁鞍山114051

采用纵向单案例研究方法,通过对华为5G创新生态系统发展历程剖析,探究5G企业创新生态系统的演化模型。结果发现:(1)5G企业创新生态系统遵循“5G技术研发—5G标准制定—5G标准与商用共生”的利导演化逻辑;(2)迭代5G企业创新生态系统的演... 详细信息

采用纵向单案例研究方法,通过对华为5G创新生态系统发展历程剖析,探究5G企业创新生态系统的演化模型。结果发现:(1)5G企业创新生态系统遵循“5G技术研发—5G标准制定—5G标准与商用共生”的利导演化逻辑;(2)迭代5G企业创新生态系统的演化动因来源于系统内外部双层级考虑;(3)在政治风险逆境中,风险识别是激活并增强5G企业创新生态系统韧性的驱动力;(4)消融创新边界孤岛对于释放5G企业创新生态系统的动态活力至关重要。

关键词： 5G 企业创新生态系统演化模型创新生境系统韧性

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复杂对象嵌套结构的规范化

软件学报 1998年第5期9卷 390-396页

作者：李天柱河北大学计算中心

本文将关系模型中的函数依赖、多值依赖、规范化等概念扩展到具有嵌套结构的复杂对象模型，并在函数依赖和多值依赖中融进了实体联系的语义，给出了规范化的方法和步骤．在最后的范式中，不存在不完全嵌套，在嵌套结构的每一层上，仅存... 详细信息

本文将关系模型中的函数依赖、多值依赖、规范化等概念扩展到具有嵌套结构的复杂对象模型，并在函数依赖和多值依赖中融进了实体联系的语义，给出了规范化的方法和步骤．在最后的范式中，不存在不完全嵌套，在嵌套结构的每一层上，仅存在单属性的关键字，相当于关系模型中的ＢＣＮＦ范式．这样的范式可消除冗余，避免更新异常，提高查询效率，保证嵌套结构可简洁而正确地表达实体联系，且不存在平面式的联系类．

关键词： O-O数据库嵌套结构函数依赖规范化数据库

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对象标识的语义及构成

计算机科学 1993年第5期20卷 16-21页

作者：李天柱河北大学河北保定071002

1.引言在面向对象模型中,对象标识是一个重要概念,文[3,9]均将其做为O-O模型的必备特征。在NF^2关系模型中,也有人引入了对象标识(元组标识和关系标识)。现在人们之所以重视对象标识,是因为在描述嵌套结构的复杂事物、处理数据共享、描... 详细信息

1.引言在面向对象模型中,对象标识是一个重要概念,文[3,9]均将其做为O-O模型的必备特征。在NF^2关系模型中,也有人引入了对象标识(元组标识和关系标识)。现在人们之所以重视对象标识,是因为在描述嵌套结构的复杂事物、处理数据共享、描述历史数据和版本特征等方面,对象标识具有重要作用。文[10]强调了由系统管理、独立于内容、独立于结构、独立于地址的强标识;文[15]指出了对对象标识的错误理解。

关键词：对象标识语义构成

科学型企业商业模式:中国情境的复合案例研究

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科技进步与对策 2019年第1期36卷 83-89页

作者：李丽李天柱成都信息工程大学商学院四川成都610225 辽宁科技大学工商管理学院辽宁鞍山114051

以中国企业为研究对象,运用复合案例研究方法分析与构建了科学型企业商业模式概念模型,分离出科学平台和价值平台两个独特要素,进而构建以科学平台-价值平台互动为核心的P2P商业模式运作模型,并根据不同类型科学型企业,分析模型的有效... 详细信息

以中国企业为研究对象,运用复合案例研究方法分析与构建了科学型企业商业模式概念模型,分离出科学平台和价值平台两个独特要素,进而构建以科学平台-价值平台互动为核心的P2P商业模式运作模型,并根据不同类型科学型企业,分析模型的有效性、适用性以及模型在不同类型科学型企业中的共性与差异,最后总结出科学型企业商业模式特点及企业管理对策。

关键词：科学型企业商业模式 P2P模型复合案例研究中国情境