This paper analyses the effect of water storage and soil moisture conservation by means of micro water collecting technique in the dryland field of spring maize. The results indicate that the rainfall infiltration d...This paper analyses the effect of water storage and soil moisture conservation by means of micro water collecting technique in the dryland field of spring maize. The results indicate that the rainfall infiltration depth is deeper by means of micro water collecting treatment than that of the control. In micro water collecting treatment, the amount of soil water storage within 0～200 cm of soil layers increases by 50.5 mm, 13.5～58.6 mm, and 24.5 mm respectively during seedling stage, the critical stage of water requirement and the ripening and harvesting stage compared with the control. The micro water collecting technique not only has the function of regulating and adjusting the amount and distribution of field evapotranspiration, but also can raise the water use efficiency, which results in an obvious effect of increasing crop yield, especially in the dry years.展开更多
The rapid miniaturization of electronic devices has fueled unprecedented demand for flexible,high-performance sensors across fields ranging from medical devices to robotics.Despite advances in fabrication techniques,t...The rapid miniaturization of electronic devices has fueled unprecedented demand for flexible,high-performance sensors across fields ranging from medical devices to robotics.Despite advances in fabrication techniques,the development of micro-and nano-scale flexible force sensors with superior sensitivity,stability,and biocompatibility remains a formidable challenge.In this study,we developed a novel conductive photosensitive resin specifically designed for two-photon polymerization,systematically optimized its printing parameters,and improved its structural design,thereby enabling the fabrication of high-precision micro-spring force sensors(MSFS).The proposed photosensitive resin,doped with MXene nanomaterials,combines exceptional mechanical strength and conductivity,overcoming limitations of traditional materials.Using a support vector machine model in machine learning techniques,we optimized the polymerizability of the resin under varied laser parameters,achieving a predictive accuracy of 92.66%.This model significantly reduced trial-and-error in the TPP process,accelerating the discovery of ideal fabrication conditions.Finite element analysis was employed to design and simulate the performance of the MSFS,guiding structural optimization to achieve high sensitivity and mechanical stability.The fabricated MSFS demonstrated outstanding electromechanical performance,with a sensitivity coefficient of 5.65 and a fabrication accuracy within±50 nm,setting a new standard for MSFS precision.This work not only pushes the boundaries of sensor miniaturization but also introduces a scalable,efficient pathway for the rapid design and fabrication of highperformance flexible sensors.展开更多
文摘This paper analyses the effect of water storage and soil moisture conservation by means of micro water collecting technique in the dryland field of spring maize. The results indicate that the rainfall infiltration depth is deeper by means of micro water collecting treatment than that of the control. In micro water collecting treatment, the amount of soil water storage within 0～200 cm of soil layers increases by 50.5 mm, 13.5～58.6 mm, and 24.5 mm respectively during seedling stage, the critical stage of water requirement and the ripening and harvesting stage compared with the control. The micro water collecting technique not only has the function of regulating and adjusting the amount and distribution of field evapotranspiration, but also can raise the water use efficiency, which results in an obvious effect of increasing crop yield, especially in the dry years.
文摘The rapid miniaturization of electronic devices has fueled unprecedented demand for flexible,high-performance sensors across fields ranging from medical devices to robotics.Despite advances in fabrication techniques,the development of micro-and nano-scale flexible force sensors with superior sensitivity,stability,and biocompatibility remains a formidable challenge.In this study,we developed a novel conductive photosensitive resin specifically designed for two-photon polymerization,systematically optimized its printing parameters,and improved its structural design,thereby enabling the fabrication of high-precision micro-spring force sensors(MSFS).The proposed photosensitive resin,doped with MXene nanomaterials,combines exceptional mechanical strength and conductivity,overcoming limitations of traditional materials.Using a support vector machine model in machine learning techniques,we optimized the polymerizability of the resin under varied laser parameters,achieving a predictive accuracy of 92.66%.This model significantly reduced trial-and-error in the TPP process,accelerating the discovery of ideal fabrication conditions.Finite element analysis was employed to design and simulate the performance of the MSFS,guiding structural optimization to achieve high sensitivity and mechanical stability.The fabricated MSFS demonstrated outstanding electromechanical performance,with a sensitivity coefficient of 5.65 and a fabrication accuracy within±50 nm,setting a new standard for MSFS precision.This work not only pushes the boundaries of sensor miniaturization but also introduces a scalable,efficient pathway for the rapid design and fabrication of highperformance flexible sensors.
