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莲子酸枣仁酵素的功能研究 被引量:2
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作者 刘潇萌 朱德强 +6 位作者 祝文兴 王婷 刘新利 黄谊东 张国栋 黄武军 李欣 《齐鲁工业大学学报》 CAS 2021年第6期21-28,共8页
研究以莲子酸枣仁酵素为目标材料,从酵素成分分析,小鼠睡眠实验验证,抗氧化能力测试和肠道菌群组学解析等物质成分与功能范畴,探究本酵素对改善睡眠质量的功效并进行生物活性评价,旨在为该酵素的潜在功能阐述提供理论依据,同时也为酵素... 研究以莲子酸枣仁酵素为目标材料,从酵素成分分析,小鼠睡眠实验验证,抗氧化能力测试和肠道菌群组学解析等物质成分与功能范畴,探究本酵素对改善睡眠质量的功效并进行生物活性评价,旨在为该酵素的潜在功能阐述提供理论依据,同时也为酵素类助眠食品研究提供科学依据,丰富酵素产品类的理论基础,促进人们对酵素和行业的科学认知,扩大酵素的推广应用。 展开更多
关键词 改善睡眠 酵素 莲子酸枣仁 肠道菌群
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End-Output Coupling Efficiency Measurement of Silicon Wire Waveguides Based on Correlated Photon Pair Generation
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作者 LV Ning ZHANG Wei +3 位作者 GUO Yuan ZHOU Qiang huang yi-dong PENG Jiang-De 《Chinese Physics Letters》 SCIE CAS CSCD 2013年第7期92-95,共4页
A method to measure the end-output coupling efficiencies between silicon wire waveguides(SWWs)and optical fibers is proposed and demonstrated.The end-output coupling efficiency is calculated through four measured coun... A method to measure the end-output coupling efficiencies between silicon wire waveguides(SWWs)and optical fibers is proposed and demonstrated.The end-output coupling efficiency is calculated through four measured counting rates based on the correlated photon pair generation in the SWW.It provides a way to investigate and optimize the coupling processes at the input and output end of the optical waveguides separately. 展开更多
关键词 EFFICIENCY optical WAVEGUIDES
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Si-Nanocrystals with Bimodal Size Distribution in Evenly Annealed SiO Revealed with Raman Scattering
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作者 KE Wei-Wei FENG Xue huang yi-dong 《Chinese Physics Letters》 SCIE CAS CSCD 2012年第1期202-205,共4页
The size distribution of Si-nanocrystals(Si-ncs)in evenly annealed SiO is investigated with transmission electron microscopy(TEM),x-ray diffraction(XRD),and Raman scattering.Two groups of Si-ncs with very different mo... The size distribution of Si-nanocrystals(Si-ncs)in evenly annealed SiO is investigated with transmission electron microscopy(TEM),x-ray diffraction(XRD),and Raman scattering.Two groups of Si-ncs with very different most probable diameters are identified,where one is>6nm and the other one is<2nm.Both of them increase gradually with increasing annealing temperature.Such a phenomenon is observed directly by TEM for samples with larger Si-ncs(>10nm)and it can be revealed clearly for all samples by Raman spectra with two components(~500cm^(-1)and~520cm^(-1)).The results of XRD show the average effect.The experimental results indicate that the common assumption of Si-nc size distribution with single most probable diameter is not always proper and the possible mechanisms are briefly discussed. 展开更多
关键词 temperature. scattering. effect.
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High-Quality Fiber-Based Heralded Single-Photon Source at 1.5 μm
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作者 WANG Peng-Xiang ZHOU Qiang +2 位作者 ZHANG Wei huang yi-dong PENG Jiang-De 《Chinese Physics Letters》 SCIE CAS CSCD 2012年第5期151-153,共3页
A high-quality heralded single-photon source (HSPS) at 1.5 μm is experimentally demonstrated based on spontaneous four wave-mixing in a piece of dispersion-shifted fiber cooled by liquid nitrogen.To improve the up-li... A high-quality heralded single-photon source (HSPS) at 1.5 μm is experimentally demonstrated based on spontaneous four wave-mixing in a piece of dispersion-shifted fiber cooled by liquid nitrogen.To improve the up-limit of the preparation efficiency of the HSPS,commercial dense wavelength-division multiplexing components are used to reduce the loss of the filtering and splitting system between the fiber and the single-photon detectors.As a result,a preparation efficiency of 80% is realized under a g(2)(0) of 0.06 in our HSPS experimental system,which is the best performance for the fiber-based HSPS at 1.5 μm reported so far. 展开更多
关键词 SYSTEM MIXING FILTERING
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Modelling of the Self Sum-Frequency-Mixing Laser
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作者 CHEN Xue-Yuan LUO Zun-Du huang yi-dong 《Chinese Physics Letters》 SCIE CAS CSCD 2001年第2期230-232,共3页
A theoretical model of the self sum-frequency-mixing(SFM)laser generated by a single crystal is proposed,in which spatial distribution of the pump and circulating fundamental lasers with arbitrary beam waists are take... A theoretical model of the self sum-frequency-mixing(SFM)laser generated by a single crystal is proposed,in which spatial distribution of the pump and circulating fundamental lasers with arbitrary beam waists are taken into account.The model is then applied to two kinds of crystals of current interest,Nd:YAI_(3)(BO_(3))_(4) and Nd:Ca_(4)GdO(BO_(3))_(3).Numerical analyses of the self-SFM laser properties predict and confirm some experimental results.The model proposed is not limited to self-SFM lasers and may be applied to general analyses of the fundamental or nonlinear laser generation with Gaussian beams. 展开更多
关键词 Nd: PUMP LASER
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