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Copyright of Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong is the property of PetroChina Southwest Oil & Gas Field Company 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 The aim is to solve a series of problems, such as the decrease of desulfurization performance, corrosion perforation, foaming and shutdown caused by the self-degradation of alcohol amine solution and external pollution in amine solution system of desulfurization unit in natural gas purification plant. Methods The solution system pollutants were analyzed to reduce the pollutants, degradation products and hydrocarbon impurities. The following measures were taken to achieve this goal. Firstly, the pretreatment facilities for feed gas was added. Secondly, the solution filter was set. Thirdly, facilities such as an on-line deep reactivation system of amine solution were added. Results The on-line deep reactivation device of amine solution could effectively remove the heat-stable salt and foaming substances in the solution, reduce the foaming height of the solution from 500 mm to 30 mm, and reduce the defoaming time from 110 s to 5 s. Conclusions By the deep reactivation of the amine solution to ensure the cleanliness of the solution and restore the performance of the solution. This will significantly reduce the frequency of foaming in the desulfurization unit and ensure a stable and efficient operation of the natural gas purification device. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science Edition) 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 Natural Gas & Oil is the property of Editorial Department of Natural Gas & Oil 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 Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & 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 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 Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering 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.)

Intelligently formulating the RPA execution path is conducive to saving labor costs and improving the promotion of RPA for enterprises. For the first time, this paper proposed based on improving DDQN algorithm for RPA path planning. First of all, the problem that the working environment of RPA was a Web page, which didn't meet the exploration conditions of the depth enhancement algorithm, with the help of the idea of metaphor map, it built the virtual environment to meet the requirements of the path planning experiment. At the same time, in order to improve the exploration efficiency of DDQN algorithm, this paper proposed to use the Jaccard coefficient of the location information between samples as a sample priority and combined it with rank-based prioritization to build new sampling methods. This paper randomly used task samples on the virtual environment to verify to demonstrate compliance with the experimental requirements. Further comparison of experimental results of the improved DDQN with DQN, DDQN, PPO and SAC-Discrete shows that the improved algorithm has fewer iterations, faster convergence speed, and higher return value, indicating the effectiveness and feasibility of the improving DDQN algorithm. [ABSTRACT FROM AUTHOR]

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.)

To investigate the effect of different concentrations of Echinococcus multilocularis secretion antigen (Em - sAg)on the phenotype and function of mouse bone marrow - derived dendritic cells (BMDCs)induced by lipopolysaccharide (LPS). Methods The bone marrow precursor cells isolated from the mouse bone marrow cavity were stimulated by mouse recombinant granulocyte - macrophage colony - stimulating factor (GM - CSF)to form BMDCs,and then cell morphology was observed under an inverted microscope. After the purity of BMDCs was identified by flow cytometry,BMDCs were divided into control group,positive control group (LPS 1 µg / ml),LPS + 3 mg / ml Em - sAg group,LPS + 1. 5 mg / ml Em - sAg group,LPS + 0. 75 mg / ml Em - sAg group,and LPS + 0. 375 mg / ml Em - sAg group. Flow cytometry was used to measure the expression of BMDC surface molecules (CD80,CD86,and MHC - ? molecules)in each group, and ELISA was used to measure the expression level of the cytokine IL - 12p70. A one - way analysis of variance was used for comparison of normally distributed continuous data between multiple groups,and the least significant difference t - test was used for further comparison between two groups. Results Observation under an inverted microscope showed that after 8 - 10 days of culture,the cells had burr - like protrusions and were in a state of complete suspension. Flow cytometry showed that the positive rate of CD11c was above 70% and most of the cultured cells were identified as BMDCs based on this. Flow cytometry further showed that compared with the control group,the LPS group had significant increases in the cell molecules CD80,CD86,and MHC - ? on surface (all P < 0. 05);compared with the LPS group,the LPS + 3 mg / ml Em - sAg group,the LPS + 1. 5 mg / ml Em - sAg group,the LPS + 0. 75 mg / ml Em - sAg group,and the LPS + 0. 375 mg / ml Em - sAg group had a significant reduction in CD80 (F = 34. 870,P < 0. 001),while there were no significant reductions in CD86 and MHC - ?(P > 0. 05). ELISA showed that there was a significant difference in the level of IL - 12 p70 between groups (F = 73. 140, P < 0. 05);compared with the control group,the LPS group had a significant increase in the expression level of IL - 12p70 after stimulation (P < 0. 05);compared with the positive control group,the LPS + 3 mg / ml Em - sAg group,the LPS + 1. 5 mg / ml Em - sAg group,the LPS + 0. 75 mg / ml Em - sAg group,and the LPS + 0. 375 mg / ml Em - sAg group had a significant reduction in the expression level of IL - 12p70 (P < 0. 05),and the degree of reduction in the pro - inflammatory factor IL - 12p70 increased with the increase in the concentration of Em - sAg. Conclusion Different concentrations of Em - sAg can inhibit LPS - induced maturity of BMDCs and the expression of the pro - inflammatory cytokine IL - 12p70. [ABSTRACT FROM AUTHOR]

Copyright of Yellow River is the property of Editorial Board of Yellow River 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 Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. 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 Chinese Institute of Food Science & Technology / Zhongguo Shipin Xuebao is the property of Journal of Chinese Institute of Food Science & Technology Periodical 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 Yellow River is the property of Editorial Board of Yellow River 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 Xi'an Polytechnic University is the property of Editorial Department of Journal of Xi'an Polytechnic University 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 China Rural Water & Hydropower is the property of China Rural Water & Hydropower 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 Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. 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 Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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 Yellow River is the property of Editorial Board of Yellow River 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 Fudan University Journal of Medical Sciences is the property of Fudan University Journal of Medical 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.)

Copyright of Journal of Xinyang Normal University Natural Science Edition is the property of Journal of Xinyang Normal University 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 Yellow River is the property of Editorial Board of Yellow River 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 Practical Oncology Journal is the property of Journal of Practical Oncology 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 Yellow River is the property of Editorial Board of Yellow River 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.)

In order to distinguish the perception and controller of end-to-end automatic steering models, this paper improved the structure of the deep learning network. By pre-training an autoencoder and gelling a good road feature alter encoding, it used the encoder as a perception and trained with the steering wheel angle prediction controller model by end-to-end approach. The training results show that the improved automatic steering network model converges faster, and the predicted angle can change well with the change of the actual angle. By using the decoder and the feature map reverse propagation method respec­tively , this paper restored the road pictures and visualized the road characteristics that the automatic steering model focused on. [ABSTRACT FROM AUTHOR]

Copyright of Guihaia is the property of Guihaia 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 China Textile Leader is the property of China Textile Information Center 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.)