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Copyright of Journal of Technology Economics is the property of Chinese Society of Technology Economics 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-Aided Design & Computer Graphics / Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao 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 Shanghai Jiao Tong University (1006-2467) is the property of Journal of Shanghai Jiao Tong 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 Acta Petrologica et Mineralogica / Yanshi Kuangwuxue Zazhi is the property of Acta Petrologica et Mineralogica 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 Electronic Components & Materials is the property of Electronic Components & Materials 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 South China University of Technology (Natural Science Edition) is the property of South China 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 Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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 Forest Research is the property of Forest Research 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 Economic Science / Jingji Kexue is the property of Economic Science 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 effects of Zhenwu Decoction combined with Guizhi Fuling Pill on cardiac function, blood biochemical indexes and quality of life in patients with chronic heart failure (CHF) of heart kidney yang deficiency type. 118 patients with CHF of heart kidney yang deficiency type treated in Baoshan Branch of Shuguang Hospital Affiliated to Shanghai University of traditional Chinese Medicine from February 2017 to February 2020 were selected and divided into control group and study group by random number table method, with 59 cases in each group. Both groups were treated with conventional western medicine, the patients in study group were treated with Zhenwu Decoction combined with Guizhi Fuling Pill additionally. The clinical effects of the two groups were observed, The changes of TCM syndrome score, cardiac function, serum inflammatory factors, vascular endothelial function index levels and quality of life were compared between the two groups. After two courses of treatment, the total clinical effective rate of the study group was 91.53% (54/59) higher than that of the control group 72.88% (43/59) (P<0.05). The TCM syndrome scores of the two groups decreased, and that of the study group was lower than that of the control group (P<0.05). In both groups, left ventricular ejection fraction (LVEF) increased, left ventricular end diastolic diameter (LVEDd) decreased, and the level of N-terminal pro brain natriuretic peptide (NT proBNP) decreased, in the study group, LVEF was higher than that in the control group, LVEDd was less than that in the control group, and the level of NT proBNP was lower than that in the control group (P<0.05). The levels of interleukin-6 (IL-6), tumor necrosis factor-琢 (TNF-琢), interleukin-10 (IL-10) and high-sensitivity C-reactive protein (hs CRP) of the two groups decreased, and those of the study group was lower than those of the control group (P<0.05). In both groups, the level of vascular endothelial growth factor (VEGF) increased, the levels of vascular endothelin-1 (ET-1) and von Willebrand factor (vWF) decreased, in the study group, the level of VEGF was higher than that in the control group, and the levels of ET-1 and vWF were lower than those in the control group (P<0.05). The scores of quality of life scale (QOL-100) of the two groups increased, and those of the study group were higher lower than those of the control group (P<0.05). Zhenwu Decoction combined with Guizhi Fuling pill in the treatment of CHF with heart and kidney yang deficiency type can reduce the level of serum inflammatory factors, improve cardiac function and vascular endothelial function, and improve the quality of life of patients. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Wildlife / Yesheng Dongwu Xuebao is the property of Chinese Journal of Wildlife 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 Tropical Medicine is the property of China Tropical Medicine 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 Clinical Pediatric Surgery is the property of Journal of Clinical Pediatric Surgery 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 East China Geology / Huadong dizhi is the property of Editorial Department of East China Geology 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 Engineering Management & Technology Discussion is the property of Omniscient Pte. 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 Engineering Management & Technology Discussion is the property of Omniscient Pte. 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 Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University 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 Research & Development is the property of Food Research & Development 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 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.)

To improve the surface quality of zirconia ceramic parts in the process of micro machining and improve the service life of zirconia ceramic parts, orthogonal experiments of three factors and five levels on zirconia ceramics were performed using a micro-grinding tool with 500# grains and 0. 9 mm diameter. Firstly, through range analysis and variance analysis, the main influencing factors for the micro-grinding surface roughness of zirconia ceramics were studied. Then, the micro-grinding process was optimized to obtain the minimum surface roughness. Finally, the effect of process parameters on the surface roughness of micro-grinding zirconia ceramics was analyzed through the single-factor experiment. The results showed that the major and minor order of the effect of various process parameters on the surface roughness is the grinding depth, the feed speed and the spindle speed. The optimized parameter combination was as follows: the spindle speed vs =40 000 r/ min, the feed rate vw =20 µm/ s and the grinding depth ap = 3 µm, the surface roughness being minimum. The surface roughness decreases first and then increases with the increase of spindle speed, and increases with the increase of feed speed and grinding depth. [ABSTRACT FROM AUTHOR]

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.)

This study aims to find out the content and source of heavy metals in the soil of the abandoned alum mining area in Lujiang County of Anhui Province, in China. A smart grid distribution was used to divide the research area into the 50 typical feature points with the center of Dafan Mountain. Five typical heavy metal elements (As, Cd, Cu, Mn, and Ni) were determined in the local soil. An UNMIX model was selected to apportion the potential sources and their contributions to soil heavy metals. A Kriging interpolation in the ArcGIS geo-statistical module was also utilized to determine the spatial distribution of soil heavy metals, further verifying the accuracy of the source analysis. The results showed that: 1) The average contents of As, Cd, Cu, Mn, and Ni were 47.38, 2.03, 30.89, 77.76, and 4.08 mg/kg in the 0-10 cm soil layer, and 50.62, 2.24, 30.82, 71.39, and 3.62 mg/kg in the 10-20 cm soil layer. The average contents of As, Cd, and Cu were all higher than the local background values. Specifically, the median contents of As and Cd were 1.28 and 7.17 times the risk screening value of soil pollution. 2) There were three major pollution sources of heavy metals in the 0-10 cm soil layer in the study area. Source 1 played a dominant role in Cu, indicating a traffic source with a contribution rate of 5.75%. There were higher contributions of Mn and Ni in Source 2, indicating the coal-burning source with a contribution rate of 49.86%. The contribution of Source 3 to As and Cd was higher than other metals. Source 3 was presented the weathering of rocks effects with a contribution rate of 44.39%. 3) There were two sources of heavy metals in the 10-20 cm soil, including the mixed sources of soil parent material and garbage (Source 1), as well as leaching, ore mining, and transportation (Source 2), where the contribution rates were 47.46% and 52.54%, respectively. 4) According to the land use types and human activities in the study area, the combination of receptor model and spatial analysis was used to comprehensively analyze the sources of heavy metals in the soil. [ABSTRACT FROM AUTHOR]

A classification method for corroded steel reinforcements based on the residual network（ResNet）was proposed, and a new scheme and technical reference for further realizing accurate quantitative evaluation on corrosion ratio of steel reinforcement on-site was provided. A total of 1478 steel reinforcements with diameters of 12 mm and 14 mm and corrosion ratio of 1. 45%～56. 10% are taken as the experimental objects. The images of steel reinforcements are taken by industrial cameras under laboratory conditions, and the total of 23 648 sample images are acquired by using the data enhancement techniques. Then, 11 kinds of sample image labels are determined according to the corrosion ratios. The ResNet structure is built based on the deep convolutional neural network, and the Adam algorithm is used for iterative optimization. The classification accuracy and training rounds are evaluated by comparing the experimental results of different data sets. To verify the applicability of the proposed method, 6 data sets are formed from sample images of different diameter of steel reinforcements for the training and testing. The experimental research shows that after 100 rounds of iterative training, the classification accuracy of corrosion degree of steel reinforcements for 6 kinds of data sets are more than 93. 2%, and the highest is 98. 8%. It also indicates that the proposed method supports the high-precision classification of corrosion reinforcement with mixed diameters, and has good practical applicability. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Capital Normal University (Natural Science Edition) is the property of Journal of Capital Normal University (Natural Science Edition) 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 Chinese Mental Health Journal / Zhongguo Xinli Weisheng Zazhi is the property of Chinese Mental Health Journal 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 Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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 analyze the influence of the size ol graphite agglomeration on the bonding strength ol welding surlace-two kinds ol AgWC(12) C(3) static silver dots with dilierent size ol graphite agglomeration were prepared. The size ol graphite agglomeration in No. 1 contact substrate is about 30 100 and that in No. 2 contact substrate is about 10 30 ptm. The contact surface was characterized via physical and chemical tests, brazing high temperature verilication and interlace micro scanning electron microscopy. The influence ol the graphite agglomeration size in the substrate on the adhesion strength between the substrate and the silver coating was investigated. Finally, it is concluded that the lower the dispersion ol graphite in the contact material substrate is, the more unlavorable it is for the ellective combination ol the substrate and the silver coating, which leads to the blistering phenomenon ol silver coating in the welding process due to the weak interfacial bonding lorce of the contact material. Through the electrical lile and temperature rise test ol the product, it can be found that in the base material of the contact material, the graphite with better dispersion is conducive to the brazing rate ol welding, and improves the electrical lile ol the product. [ABSTRACT FROM AUTHOR]

This paper studied the coordination degree between water environment and social economy in the Yellow River basin from multiple logical and spatial dimensions. Based on the analysis of the interaction between water environment and social economy, the water environment index system of the Yellow River basin was constructed from three logical dimensions of water resources, water pollution and water governance. The coupling coordination model was used to measure the overall coordination degree between water environment and social economy in the Yellow River basin. From the three spatial dimensions of the upper, middle and lower reaches of the Yellow River basin, seven urban agglomerations along the Yellow River and 61 cities, and three logical dimensions of water resources, water pollution and water governance, this paper used Deng’s correlation degree method to measure the correlation level between water environment and social economy and explore its causes. The results show that the overall coordination degree between water environment and social economy in the Yellow River basin is low but increasing. From 2009 to 2018, the correlation degree between the three logical dimensions of water environment and social economy fluctuated between 0.7-0.8 and the spatial differentiation is not obvious. From 2009 to 2018, the correlation degree between water environment and social economy in the middle of the Yellow River basin has been increased, while the correlation degree between water environment and social economy in the upper and lower reaches of the Yellow River basin has been decreased. Taiyuan urban agglomeration shows an increasing trend and Ningxia urban agglomeration along the Yellow River decreases slightly. Among the 61 cities, it needs to focus on the cities of Longnan, Linfen and Baoji that have high correlation between water resources and social economy, the cities of Guyuan, Jincheng and Longnan that have high correlation between water pollution and social economy and the cities of Linfen, Qingyang and Bayannur that have low correlation between water management and social economy. [ABSTRACT FROM AUTHOR]

Limei Pb-Zn deposit is located in the northern part of Huayuan ore concentration area, the southeastern margin of Yangtze craton with a predicted reserve of 300 X 104 t, which is the most typical Pb-Zn deposit in this area. The ore bodies in Limei Pb-Zn deposit are stratiform and stratoid, which are controlled by the strata and structures. They mainly occur in the algal limestone of the third sub-member of Lower Cambrian Qingxudong Formation. In order to obtain the metallogenic age of Limei Pb-Zn deposit and discuss the source of ore-forming materials, the isochron age of monomineral sphalerite formed in the main metallogenic period was yielded by RbSr dating method. The obtained age is (464±12)Ma (MSWD is 0. 97). The metallogenic epoch is Middle Ordovician, and the mineralization is earlier than that of Shizishan Pb-Zn deposit ((410± 12)Ma) and Rouxianshan Pb-Zn deposit ((412 ± 6) Ma) in the southern part of Huayuan ore concentration area. It is inf erred that there are two metallogenic events in H uayuan ore concentration area caused by Yunan movement and Guangxi movement. The metallogenic time span of the whole ore concentration area is about 70 Ma. The mineralization age of Limei Pb-Zn deposit is obviously later than that of the host strata; the formation may be related to the tectonic hydrothermal activity caused by the extension structure during Yunan movement. The 87 Sr / 86 Sr ratio of sphalerite ranges from 0. 709 56 to 0. 711 14, and the ( 87 Sr/86 Sr), is 0. 709 380 ± 0. 000 018. The ore-forming fluid has a high Sr isotope ratio, which is higher than t hat of the host rock. It is inferred that the ore-forming materials should mainly come from the underlying Cambrian Shipai Formation and Niutitang Formation with high 87 Sr/86 Sr ratio and high abundances of Pb and Zn. [ABSTRACT FROM AUTHOR]

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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.)