秸秆资源工农耦合循环技术及其应用

现代农业中日益突出的土壤肥力下降、环境污染等问题驱动农业向环保、经济的生态农业模式发展。但是,较高的现代农业投入与较低的产出使得独立的农业系统难以实现系统下资源的充分高效利用。针对秸杆资源利用提出工农耦合循环模式。该模式以农业秸秆资源为物质流接口,耦合秸秆工业炼制技术,实现农业资源的高效循环和高值化利用

Normally Off AlGaN/GaN MIS-High-Electron Mobility Transistors Fabricated by Using Low Pressure Chemical Vapor Deposition Si3N4 Gate Dielectric and Standard Fluorine Ion Implantation

This letter presents a fabrication technology of enhancement-mode (E-mode) AlGaN/GaN metal-insulator-semiconductor high-electron mobility transistors (MIS-HEMTs) using 10 keV fluorine ion implantation. An 8 nm low-pressure chemical vapor deposition silicon nitride layer was deposited on the AlGaN as gate dielectric and energy-absorbing layer that slows down the high energy (10 keV) fluorine ions to reduce the implantation damage. The E-mode MIS-HEMTs exhibit a threshold voltage as high as +3.3 V with a maximum drain current over 200 mA/mm (250 mA/mm for depletion-mode MIS-HEMTs) and a high on/off current ratio of 10(9). Meanwhile, the E-mode MIS-HEMT dynamic R-ON is only 1.53 times larger than the static R-ON after off-state V-DS stress of 500 V

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies