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Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Synthetic Crystals is the property of Journal of Synthetic Crystals Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Agricultural activities in Japan have been limited to the aging and diminishing labor force, as well as the small plots of cultivated land in mountainous regions. Therefore, smart agriculture has been launched to ensure food security in Japan. A systematic framework has been provided to support the digitization of forestry and aquaculture, including the basic Law and national strategy. Numerous technological innovations have also involved machinery automation, information systems, rural network transformation, agricultural aviation, and plant factories. Modern agriculture has allowed the 1 404 000 core farmers and the majority of the elderly population to achieve nearly 130 million people self-sufficient in the major food. Among them, the Japan Agricultural Association has played a pivotal role in this transformation, covering the various processes at multiple levels and departments. These fundamental facilitates have provided crucial support to implement smart agriculture. This study aims to analyze the trajectory and efficacy of smart agriculture in Japan. The valuable insights were then obtained for the several suggestions. Firstly, it was very necessary to innovate the agricultural system and mechanism, in order to create the channels for the seamless circulation of information, manpower, and resources. The agricultural environment was sustained to leverage the strengths of diverse entities, such as local governments, universities, and enterprises. Long-term empirical research was performed on smart agricultural technology in rural revitalization. These insights should be adapted to the local conditions in the agricultural production, sales, promotion, and management from the Japanese Farmers' Association's experience. The findings can greatly contribute to the revitalization of rural areas in China. In turn, the trajectory of rural modernization can be accelerated to position as a formidable force in the realm of smart agriculture. These lessons can also be incorporated into sustainable and technologically advanced agricultural systems. [ABSTRACT FROM AUTHOR]

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The electrical contact materials are widely used in various low-volt age switching devices such as electrical switches, relays, contactors and circuit breakers, and their characteristics are of great importance to the switching capacity, reliability, stability and service life of the overall electrical system. The conventional Ag- based contact materials have good performance, but still suffer from defects such as high contact resistance, low interfacial bonding strength, and poor plasticity, and their applications are limited to some extent. Tn recent years, domestic and foreign researchers have reported new group element contact materials such as Ag-Sn()2- Me(), Ag-GNPs, Ag-MAX and Ag-RE on the basis of the traditional Ag-based contact materials. This paper will review the current research status of new Ag-based contact materials in terms of their organization and properties as well as arc erosion performance, and finally summarize the key scientific issues and challenges facing new Ag-based contact materials and look forward to their future development trends. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

针对数据包络分析的决策单元(DMU)排序问题，建立了一种基于DMU交叉排序矩阵的评价分析模型.基于中立交叉效率，通过各决策单元效率的相对序值转换得到交叉排序矩阵，计算了 DMU在各次序下集结“自评”和“他评”的效率和，建立一种线性规划模型，通过求解得到了最终排序结果.将其应用于福州大学城若干高校实验示范中心的效率评价，并与其他模型进行了比较，结果表明本方法在区分决策单元优劣上表现最佳，方法有效.

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

针对提高应急方案调整精确度的问题，提出了一种基于多角度的应急案例调整方法.基于3种相似度计算方法得到案例的综合相似度，通过灰色关联度计算方法得到问题与方案间的案例关联度；并从综合相似度、灰关联度以及案例实施效果三方面确定相似历史案例集及其权重；再运用证据推理对相似历史案例的方案进行集结，得到目标案例的调整方案.最后，通过算例说明方法的可行性和有效性.

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Accurate prediction of regional water evapotranspiration can greatly contribute to the rational utilization of regional water resources for the water resources saving. Crop evapotranspiration can be one of the most important indicators for the water evapotranspiration status of crops, in order to evaluate the soil water balance of farmland and the water management of farmland. However, the calculation of crop evapotranspiration requires a large amount of meteorological factor data. There is often redundant data with the low correlation with the evapotranspiration in meteorological data, which seriously affects the prediction accuracy and efficiency of the model. It is a high demand to extract the core environmental factors for the less-factor prediction model. The classification and regression tree (CART) can be used to make feasible for the large data sources in a short time. Then, Less factors can be extracted for the predictive analysis in a more scientific way. In this study, a less-factor water evapotranspiration model was constructed to efficiently and accurately predict the evapotranspiration data. The core factors were selected from multiple meteorological factors. 23 typical stations were selected in the nine agricultural regions, and then collected data on eight meteorological factors, such as precipitation, and sunshine hours. The meteorological factors were ranked in the order of importance using CART. The top 3-5 meteorological factors were then selected to predict the evapotranspiration using the extreme learning machine (ELM) model. At the same time, the ELM model was optimized using genetic algorithm (GA), particle swarm optimization (PSO), sparrow search algorithm (SSA). Three optimization algorithms (GA-ELM, PSO-ELM, SSA-ELM) were used to construct a less-factor hybrid optimization water evapotranspiration prediction model. Relative root mean square error (RMSE), coefficient of determination (R 2 ), mean absolute error (MAE), and NashSutcliffe coefficient (NSE) were used to evaluate the performance of the ELM and optimization model. The results showed that: 1) The main influencing factors were ranked in the order of the precipitation, sunshine duration, mean station pressure, daily maximum temperature, and average relative humidity using the importance ranking of the CART algorithm. 2) The PSOELM model presented the highest prediction accuracy among the three optimization algorithms. Specifically, the RMSE of evapotranspiration prediction for the 23 stations was ranged from 6.608 to 22.077 mm/d, the NSE of 0.824-0.998, R 2 of 0.908- 0.995, and MAE of 5.075-16.677 mm/d. In addition, the RF and SVR model with the strong generalization performance were selected to compare with the PSO-ELM model. The prediction performance of three models was slightly improved with the increase of the input factors, indicating the slight overall improvement. The three models shared the strong generalization and robustness. The meteorological factors were input into the prediction model, according to the order of importance. The meteorological factors ranked the 4th and 5th were relatively less important, where the prediction accuracy was slightly improved with the increase of the input parameters. The PSO-ELM model presented the highest prediction accuracy among the three models. 3) The ELM model performed better applicability in the Yunnan-Guizhou Plateau region, the Sichuan Basin, and the surrounding areas. The three optimization algorithms showed the better applicability in the South China and the YunnanGuizhou Plateau region, with the highest applicability of the PSO-ELM model. The findings can provide an important reference for the crop water demand calculation in nine major agricultural regions in China. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

针对应急方案调整问题，提出了一种基于案例问题与解决方案之间关系的决策分析方法.通过混合相似度法计算目标案例与历史案例间的综合相似度，并将其融入历史案例的问题与解决方案属性中，进而根据向量余弦夹角定义计算问题与解决方案之间的关系.应急方案调整除需考虑问题与解决方案之间的夹角关系，还需考虑问题与解决方案的模的大小.最后，用算例说明该应急案例调整方法的有效和实用性.

针对考虑利益相关者偏好的双边匹配问题，提出了一种基于离散证据推理的决策方法.首先，构建匹配的证据识别框架；然后，将双边利益相关者的不确定偏好序评价信息转换成等级置信度信息；在此基础上，以双边满意程度为目标，将双边的等级置信度信息作为证据，通过离散证据融合求出匹配的融合度；接着，构建基于融合度的决策模型获得匹配方案.最后，用算例展示了该方法的应用.

Objective To screen for differentially expressed genes( DEGs) involved in the development of spinal cord injury using bioinformatics methods, and to explore the changes of lipopolysaccharide( LPS) activated BV2 cells DEGs in vitro, in order to provide a new target for the treatment of spinal cord injury. Methods The gene-chip data were downloaded from GEO database, and the samples in the data set were divided into the spinal cord injury Day 2 group and the Day 5 group. R software was used to process the batch effect between the samples from different data sets, and the expression data of the gene-chip was standardized. R software was used to analyze the standardized gene expression matrix to obtain the differential genes. The differential genes were imported into the DAVID database for gene ontology( GO) analysis, and the pathway analysis was performed through the KEGG database. The protein-protein interactions( PPI) network was constructed using STRING protein database, and 10 Hub genes were analyzed by Cystoscope software. Real-time fluorescence quantitative polymerase chain reaction( RT-qPCR) was used to analyze the top two genes with high scores in the Hub gene of BV2 microglia activated by LPS. Results Compared with the Day 2 group, there were 340 DEGs in the Day 5 group. Analysis of the bioinformation showed that DEGs were enriched in cell inflammatory response and substance metabolism. A total of 10 central nodes were obtained through module analysis with STRING software. KEGG re-analysis of 10 genes revealed that CXCL10,CCR3,CCR10 and CCL2 genes were significantly enriched in chemokine signaling pathway and cytokine-cytokine receptor interaction. In vitro experiment, compared with normal group, the expression levels of inflammatory cytokines [interleukin-1β( IL-1β),IL-6 and tumor necrosis factor α( TNF-α) ] and mRNA expressions of chemokines CXCL10,CCR9/10 and CCL2 were increased in the LPS group, with statistical significance( P＜0.05) .Conclusion CXCL10,CCR3,CCR10 and CCL2 chemokine signaling pathways and cytokine-cytokine receptor interactions may be closely related to the development mechanism of spinal cord injury.CXCL10,CCR9/10 and CCL2 mediate the inflammatory responses of BV2 cells. [ABSTRACT FROM AUTHOR]

Copyright of Aero Weaponry is the property of Aero Weaponry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food & Machinery is the property of Food & Machinery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oilfield Chemistry is the property of Sichuan University, Oilfield Chemistry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Smart Agriculture is the property of Smart Agriculture Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To investigate the effect of Duyun Maojian tea extract on the proliferation of human hepatic stellate cells and its mechanism. Methods: Human hepatic stellate cells (LX-2) were cultured in vitro and they were treated with 0, 5, 10, 20, 40, 80, 160, 320, and 640 μg/mL Duyun Maojian tea extracts for 24 h, respectively. The cells were collected and the cells' activity were detected by CCK-8 method. The concentration of Duyun Maojian tea extract was selected when the concentration of Duyun Maojian tea extract was lower than the half inhibitory activity (IC50) of LX-2 cells, and the subsequent experiment was conducted. In addition, LX-2 cells were randomly divided into the blank control group, model group, low-, medium-, high-concentration tea extract groups and positive control group. Cells in the blank control group were given routine culture for 26 h without any other treatment； cells in the model group were pretreated with 0. 5 μg/mL lipopolysaccharide (LPS) for 2 h, followed by routine culture for 24 h； cells in the low-, medium- and high-concentration tea extracts groups were pretreated with 0. 5 μg/mL LPS for 2 hours, followed by treatment of low-, medium- and high-concentration tea extracts for 24 h； cells in the positive control group were pretreated with 0. 5 μg/mL LPS for 2 h and then they were treated with 5 μmol/L silybin for 24 h. The expression levels of inflammatory cytokines such as interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and cyclooxygenase-2 (COX-2) mRNA were detected by RT-qPCR, and the protein expression levels of inflammatory cytokines such as IL-6, TNF- α, COX-2 and nuclear factor kappa-B (NF-κB) signal pathway NF-κB p65, p-NF-κB p65, IκBα, and p-IκBα were detected by West⁃ ern blotting. Results: The Duyun Maojian tea extracts of 0, 5, 10, 20, 40, 80, 160, 320, 640 μg/mL inhibited the activity of LX-2 cells in a concentration-dependent manner (F=60. 160, P<0. 01) . When LX-2 cells were in IC50, the con⁃ centration of Duyun Maojian tea extract was 170. 9 μg/mL. Although the LX-2 cell activity decreased after the interven⁃ tion of 5, 10, 20 μg/mL Duyun Maojian tea extracts, there was no significant difference in comparison with that of 0 μg/mL Duyun maojian tea extract (all P>0. 05) . Therefore, 40, 80, 160 μg/mL Duyun Maojian tea extracts were selected as low-, medium- and high-concentration tea extracts groups for the following experiments. Compared with the blank control group, the expression levels of inflammatory cytokines IL-6, TNF-α, COX-2 mRNA and protein in the model group increased significantly (all P<0. 05) . Compared with the model group, the expression levels of IL-6, TNF-α, COX-2 mRNA and protein decreased significantly in the low-, medium- and high-concentration Duyun Maojian tea extracts groups (all P<0. 05) . Compared with the blank control group, the protein expression levels of p-NF-κB p65 and p-IκBα of NF-κB signal pathway increased significantly in the model group (all P<0. 05) . Compared with the model group, the protein expression levels of p-NF-κB p65 and p-IκBα decreased significantly in the low-, medium- and high-concentration Duyun Maojian tea extracts groups (all P<0. 05) . Conclusion: Duyun Maojian tea extract can inhibit the proliferation of human hepatic stellate cells, and the mechanism may be related to inhibiting the activation of NF-κB signaling pathway and reducing the production of inflammatory factors. [ABSTRACT FROM AUTHOR]

在以色差分析边缘跟踪方法的基础上，针对内窥镜采集的临床图像的特点，将边缘检测和边缘点连接结合为一体，提出一种基于形状知识指导下的色差分析自适应边缘跟踪方法，实现了图像边缘特征点的全自动定位.实验表明，该方法快速而有效.

Copyright of Journal of South China Agricultural University is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Metal Working (1674-165X) is the property of Metal Working Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrographic Surveying & Charting / Haiyang Cehui is the property of Hydrographic Surveying & Charting Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

An agricultural robot system has been ever increasing to develop rapidly in the world, with the progress of the Internet of Things, big data, and artificial intelligence. This study aims to analyze the development of the global agricultural robot system using the domain knowledge map from the Web of Science core data and visualization software. Research findings were as follows: 1) Four stages were roughly divided in the agricultural robot research. 2) The United States, China, Spain, Germany, Japan, Italy, and the United Kingdom presented the most research outputs, and the closest cooperation was found between China and the United States, the United States and Spain, China and Japan. 3) The agricultural robot research in China was about 10 years later than that of the United States, but there was a rapid increase in the most achievements “quantity and quality”, especially in the fruit picking robot. The key technologies, such as stereo vision technology, have been reported almost simultaneously in China and the United States. 4) The development of the agricultural robot system followed the following path: from simple to complex, and gradually to the multi-functional, intelligent autonomous unmanned system. Correspondingly, the development of the agricultural robot system from the birth, shape and growth to a period of rapid development, was great benefit from the big data, artificial intelligence, internet of things, cloud computing, mobile Internet, as well as the new generation of information and communication technology. Now, the agricultural robot has stepped into a period of accelerated development in the new era. The future agricultural robot can be more smart and intelligent, from one single function to the integration of intelligent perception, intelligent decision-making, and intelligent execution of agricultural robot system. The more extensive development of agricultural robots can be extended from the special robots to multi-functional mechanization, automation, and intellectualization suitable for the agricultural production, particularly from the whole mechanization of the same crop production to the comprehensive large-scale intensive mechanization of different varieties of crops development needs. The application of agricultural robots has been developed from a single robot to a group operation system with the intelligent cooperation of multiple robots, such as swarm UAV, harvesting robot group, robot group, and robot team. The application scenarios have been more efficient and competitive in the large-scale cooperative operation of agricultural robots. The unmanned intelligent agricultural robot can be the development trend to cope with the agricultural labor shortage and machine generation. Man-machine cooperation and man-machine integration can also bring the respective strengths of new farmers and agricultural robots to achieve the common growth of man-machine. Consequently, some recommendations were made to strengthen basic research, and break through the restrictions and blockades of algorithms, models, materials, and processes, particularly for the high-level scientific and technological self-reliance in the field of agricultural robots. It is very necessary to accelerate the implementation of the development strategy of agricultural robots during this time. The level of intelligence of agricultural robots needs to be further improved for the stability, high quality, and high efficiency of operating performance suitable for various operating environments. In addition, the decision making on the supportive and guiding policies and the investment can also be critical to strengthen the research and talent team, thereby promoting sustainable and healthy development in the application of agricultural robot technology and equipment. [ABSTRACT FROM AUTHOR]

Copyright of Operations Research Transactions / Yunchouxue Xuebao is the property of Editorial office of Operations Research Transactions and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Upper Paleozoic in the eastern Ordos Basin are rich in oil and gas resources, showing great po tential. In recent years, the effectiveness of cap plays a key role in gas accumulation with the deepening research in this area. Based on logging, core data, a logging model for the breakout pressure of the Upper Paleozoic cap rock in the eastern Ordos Basin was built. By applying this model, the spatial distribution and breakthrough pres sure distribution of the Upper Paleozoic cap in the eastern Ordos Basin were studied, which reveals the control ling factors of cap rock sealing ability. By integrating production data, the comprehensive evaluation of rock seal ing ability was discussed. The results show that there are three sets of mudstone caps in the Upper Paleozoic in the eastern Ordos Basin: The Shiqianfeng Formation, the Shangshihezi Formation and the Shanxi Formation. The cap in Shiqianfeng Formation is the thickest with wide distribution, and is in the middle diagenetic A stage. The mudstone has high plasticity and good toughness, showing the relatively high breakthrough pressure and good sealing performance, which is regional cap. The Shangshihezi Formation cap is between the middle diage netic A stage and B stage. However, the pure mudstone is relatively thin due to the frequent interbedded of ar gillaceous siltstone and fine sandstone. Therefore the breakthrough pressure is the lowest, leading to the worst seal ability. The cap at the top of the Shanxi Formation is the thinnest, however, it is in the middle diagenetic B Stage due to the deepest burial depth, and the mudstone plasticity is enhanced, therefore the breakthrough pres sure is the highest and the capping ability is the best. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the expression and significance of microRNA-21 and its regulatory gene EGFR in non-small cell lung cancer, lung adenocarcinoma and squamous cell carcinoma. Methods Lung tissue samples of 30 patients with pathologically confirmed non-small cell lung cancer from October 2020 to December 2020 in The 1st Affiliated Hospital of Kunming Medical University were taken as the research objects, including 24 cases of lung adenocarcinoma and 6 cases of lung squamous cell carcinoma, and the lung tissue adjacent to cancer was taken as the control. The expression of microRNA-21 was detected by real-time quantitative PCR, and the protein expression and localization of EGFR were detected by immunohistochemistry. Results The expression levels of microRNA-21 and EGFR in lung tissue adjacent to cancer were lower. Compared with lung tissue adjacent to cancer, the expression levels of microRNA-21 and EGFR in lung adenocarcinoma and lung squamous cell carcinoma were significantly increased (P < 0.01); compared with lung adenocarcinoma, the expression levels of microRNA-21 and EGFR in lung squamous cell carcinoma were significantly increased (P < 0.05). Conclusion MicroRNA-21 and its regulatory gene EGFR are highly expressed in NSCLC lung adenocarcinoma and squamous cell carcinoma, and the expression trend is consistent, which can be used to predict the progress and prognosis of NSCLC. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper studied the probabilistic hesitant fuzzy staged dynamic group decision-making problem with partially unknown weights of decision makers. Aiming at the change of the external environment and combining the symbol distance measurement, the paper proposed a phased group decision-making method considering the change of the external environment. Firstly, the method defined the hesitant degree formula of probabilistic hesitant fuzzy elements based on the variance and number difference of the elements, and defined the symbol distance formula of probabilistic hesitant fuzzy elements on this basis. Then, according to the characteristics that the change of the external environment would lead to the difference of the information obtained in each timing stage, the method constructed a dynamic decision model to determine the weights of decision makers in each timing stage, and then aggregated the information in stages to form a scheme chain of decision-making process. Finally, an example verified th e effectiveness and rationality of the proposed method. [ABSTRACT FROM AUTHOR]

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