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您的检索式：作者名="Xiqiang An"
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| 1 | Microwave-induced high-energy sites and targeted energy transition promising for efficient energy deployment显示文摘Diverse interactions between microwaves and irradiated media provide a solid foundation for identifying novel organization pathways for energy flow.In this study,a high-energy-site phenomenon and targeted-energy transition mechanism were identified in a particular microwave heating(MH)process.Intense discharges were observed when microwaves were imposed on irregularly sized SiC particles,producing tremendous heat that was 8-fold the amount generated in the discharge-free case.Energy efficiency was thereby greatly improved in the electricity-microwaves-effective heat transition.Meanwhile,the dispersed microwave field energy concentrated in small sites,where local temperatures could reach 2000℃–4000℃,with the energy density reaching up to 4.010^(5) W/kg.This can be called a high-energy site phenomenon which could induce further processes or reactions enhancement by coupling effects of heat,light,and plasma.The whole process,including microwave energy concentration and intense site-energy release,shapes a targeted-energy transition mechanism that can be optimized in a controlled manner through morphology design.In particular,the discharge intensity,frequency,and high-energy sites were strengthened through the fabrication of sharp nano/microstructures,conferring twice the energy efficiency of untreated metal wires.The microwave-induced high-energy sites and targeted energy transition provide an important pathway for high-efficiency energy deployment and may lead to promising applications. | Jing SUN Guanqun YU Kui AN Wenlong WANG Biao WANG Zhenyu JIANG Chenggong SUN YanpengMAO Xiqiang ZHAO Zhanlong SONG | 2022 | Frontiers in Energy2022，16，6： | 0 |
| 2 | Immunomodulatory activity of polysaccharides from Brassica rapa by activating Akt/NF-κB signaling显示文摘Objective:To investigate the immunomodulatory activity of polysaccharides from the roots of Brassica rapa.Methods:The crude polysaccharide from roots of B.rapa(BRP)was extracted and purified to further investigate the active fraction of BRT for inducing macrophage phagocytosis.Results:Effects on RAW264.7 cells demonstrated that BRP behaved better phagocytic capacity and had potent immunomodulatory activity,including increasing production of nitric oxide(NO),tumor necrosis factor a(TNFa)and upregulating mRNA levels of inducible NO synthase(iNOS)and TNFa.Furthermore,modulation of macrophage by BRP was indicated to be mediated via the activation of Akt and nuclear factor-kappa B(NF-κB).Conclusion:The beneficial effects of BRP could be used as an immunotherapeutic adjuvant in treatment of inflammatory diseases. | Weiwei Guo Qianxiao Zhang Yu Du Junting Guo Tingting Zhao Liping Bai Xiqiang An | 2022 | Chinese Herbal Medicines2022，14，1： | 0 |
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