Search

Copyright of Journal of Signal Processing is the property of Journal of Signal Processing 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 National University of Defense Technology / Guofang Keji Daxue Xuebao is the property of NUDT 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 Chinese Journal of Agrometeorology is the property of Editorial Board of Chinese Journal of Agrometeorology 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 Cancer Research on Prevention & Treatment is the property of Cancer Research on Prevention & Treatment 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 Shenzhen University Science & Engineering is the property of Editorial Department of Journal of Shenzhen University Science & 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 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.)

The micro nano rough surface of cement-based materials was constructed by the combination of modified copper mesh lithography and SiO, and the surface was modified by octadecyl a mine grafted humic acid as a low surface energy material to prepare a highly stable superhydrophobic cement-based material coating. The effects of different concentrations of Si()< in the coating and the re-etching of modified copper mesh on its hydrophobic properties were studied, and the optimum concentration of Si()< was deter mined. Tn addition, the surface morphology, structure and bonding of cement-based materials were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and Fourier infrared spectroscopy (FT-TR). At the same time, the water absorption and coating stability of superhydrophobic cement-based materials were comprehensively evaluated. The results show that when the concentration of SiO, is 2.5%, the surface contact angle of cement-based materials re-engraved with modified copper mesh treated by impregnation method reaches the peak value of 158. 6° and the rolling angle is as low as 5.5【The water absorption decreases by 73.5%. After that, after repeated 3() times of tape stripping surface test and knife scraping test, the coating still remains superhydrophobility (contact angle 150.2°, rolling angle 8.2°), which confirms that the coating surface treated by this method has superhydrophobility and good stability. [ABSTRACT FROM AUTHOR]

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 Engineering Science Research & Application 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.)

Based on the importance and desire of innovative talent for the nation, the society and the enterprise, as well as the development of academic technologies and their mutual penetration, the necessity of the large-scale comprehensive experiment with different disciplines in colleges and universities are put forward. Combined with the teaching practice for material forming profession and based on the present experimental projects, we take the powder metallurgy products that is cutting tools as the main line and design a large-scale comprehensive experiment combined with powder metallurgy technology, surface coating technology and cutting technology. Students are guided to access information, take the initiative to think, design their own experimental program and implement the experiment. It focuses on cultivating students’ abilities to comprehensively use professional knowledge to analyze problems and solve problems, to innovate and to systematically study scientific problems. [ABSTRACT FROM AUTHOR]

To investigate the effect of different tillage methods on soil carbon pool management index (CPMI), carbon sequestration rate (CSE), wheat yield and straw returning apparent humification coefficient, a nine- year (2007- 2016) field experiment with six tillage measures under straw returning condition in Wei Highland was conducted. The tillage measures included three single continuous tillages (no-tillage (NN), subsoiling (SS) and conventional tillage (CC)), and three rotational tillages (no- tillage- subsoiling (NS), subsoiling- conventional tillage (SC) and conventional tillage-no-tillage (CN)). The results showed that, compared with the conventional tillage, the measure of NN increased carbon sequestration rate, soil organic carbon content (SOC) and its oxidative components (EOC), and carbon pool management index in surface soil (0 to 10 cm) while decreased SOC and EOC, but increased the stability coefficient of organic carbon (KOS) in soil layer deeper than 10 cm. The measure of SS increased the SOC, EOC content, CSE, CPMI in the surface soil layer and 35-50 cm soil layer, improved the EOC/SOC values in the soil layers of 0-10 cm and 35-50 cm, and increased KOS in 10-20 cm soil layer. Rotational tillages increased the SOC, EOC content and CSE in each soil layer, and increased the EOC/SOC value in the soil layers of 0-10 cm and 35-50 cm, NS and CN rotational tillages increased CPMI in each soil layer. Compared with the conventional tillage, the yield of wheat grain and the dry mass of wheat straw were increased in the treatment of SS, NN and rotational tillage, and the maximum increment was found to be in the treatment of NS which was 14.3% for grain yield and 12.9% for straw dry mass, respectively. After the nine-year straw returning, the apparent humification coefficient of returning straw increased in the SS, NN and rotational tillage, and the apparent humification coefficient of NS treatment was significantly higher than that of the conventional tillage. [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.)

Copyright of China Sciencepaper is the property of China Sciencepaper 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.)