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Evaluation of Slow Light Periodic Signals Considering the Distortion in EDF

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Chinese Physics Letters 2014年第3期31卷 82-85页

作者： WANG WU Chong-Qing WANG zhi LIU guo-dong LIU Lan-Lan SUN Zhen-Chao Institute of Optical Information and Key Lab of Luminescence and Optical Information Technology Beijing Jiaotong University Beijing 100044

Based on the fundamental harmonic phase delay, a new definition of fundamental harmonic fractional delay （FHFD） is proposed to evaluate slow light with the consideration of signal distortion, to eliminate the dependence on the choice of the reference point. By solving the rate equation of erbium-doped fiber （EDF）, it is shown that the slow light always accompanies the signal distortion when the periodic signal propagates in EDF, and FHFD depends on the signal distortion, as well as the average input power, the modulation depth and the length of EDF. The results of simulations and experiments indicate that the definition of FHFD is reasonable and effective to evaluate the slow light of periodic signals.

关键词： FIBERS RESEARCH SEMICONDUCTOR doping ERBIUM SLOW light PHYSICS research

Heyingwuzi formulation alleviates diabetic retinopathy by promoting mitophagy via the HIF-1α/BNIP3/NIX axis

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World Journal of Diabetes 2024年第6期15卷 1317-1339页

作者： Jia-Jun Wu Shu-Yan Zhang Lin Mu zhi-guo dong Yin-Jian Zhang Department of Ophthalmology Longhua Hospital Shanghai University of Traditional Chinese MedicineShanghai 200032China Department of Ophthalmology Eye and ENT HospitalFudan UniversityShanghai 200031China

BACKGROUND Diabetic retinopathy(DR)is the primary cause of visual problems in patients with *** Heyingwuzi formulation(HYWZF)is effective against *** To determine the HYWZF prevention mechanisms,especially those underlying *** Human retinal capillary endothelial cells(HRCECs)were treated with high glucose(hg),HYWZF serum,PX-478,or Mdivi-1 in ***,cell counting kit-8,transwell,and tube formation assays were used to evaluate HRCEC proliferation,invasion,and tube formation,*** electron microscopy was used to assess mitochondrial morphology,and Western blotting was used to determine the protein *** cytometry was used to assess cell apoptosis,reactive oxygen species(ROS)production,and mitochondrial membrane ***,C57BL/6 mice were established in vivo using streptozotocin and treated with HYWZF for four *** glucose levels and body weight were monitored *** in retinal characteristics were evaluated using hematoxylin and eosin,tar violet,and periodic acid-Schiff *** levels in retinal tissues were determined via Western blotting,immunohistochemistry,and *** HYWZF inhibited excessive ROS production,apoptosis,tube formation,and invasion in hg-induced HRCECs via mitochondrial autophagy in *** increased the mRNA expression levels of BCL2-interacting protein 3(BNIP3),FUN14 domain-containing 1,BNIP3-like(BNIP3L,also known as NIX),PARKIN,PTEN-induced kinase 1,and hypoxia-inducible factor(HIF)-1α.Moreover,it downregulated the protein levels of vascular endothelial cell growth factor and increased the light chain 3-II/I ***,PX-478 and Mdivi-1 reversed these ***,PX-478 and Mdivi-1 rescued the effects of HYWZF by decreasing oxidative stress and apoptosis and increasing *** intervention improved the symptoms of diabetes,tissue damage,number of acellular capillaries,and oxidative stress in ***,in vivo

关键词： Diabetic retinopathy HIF-1α/BNIP3/NIX axis Mitophagy Heyingwuzi formulation Traditional Chinese medicine

Significance of platelet activating factor receptor expression in pancreatic tissues of rats with severe acute pancreatitis and effects of BN52021

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World Journal of Gastroenterology 2007年第21期13卷 2992-2998页

作者： Shi-Hai Xia Chun-Xiu Hu zhi-Ling Zhao guo-dong Xia Yao Di Department of Gastroenterology Pancreas Center of Affiliated Hospital of Medical College of the Chinese People's Armed Police Forces Tianjin 300162 China

AIM:To investigate the dynamic changes and significance of platelet activating factor receptor (PAF-R) mRNA and protein in pancreatic tissues of rats with severe acute pancreatitis (SAP) and effects of BN52021 (Ginkgolide B). METHODS:Wistar male rats were randomly assigned to the negative control group (NC group),SAP model group (SAP group),and BN52051-remedy group (BN group),and each of the groups was divided into 6 subgroups at different time points after operation (1 h,2 h,3 h,6 h,12 h,and 24 h) (n=10 in each). PT-PCR and Western blot methods were used to detect PAF-RmRNA and protein expression in pancreatic tissues of rats respectively. Pathological examination of pancreatic tissues was performed and the serum amylase change was detected. RESULTS:Serum amylase and pathological results showed the that SAP model was successfully prepared,BN52021 was able to decrease serum amylase,and the pathological ratings in BN group at 3 h,6 h,and 12 h significantly decreased compared with those in the SAP group (8.85 ± 0.39 vs 5.95 ± 0.19,9.15 ± 0.55 vs 5.55 ± 0.36,10.10 ± 0.65 vs 6.72 ± 0.30,P < 0.05). The result of PAF-mRNA showed dynamic changes in SAP and BN groups,which increased gradually in early stage,reached a peak at 3 h (0.71 ± 0.14 vs 0.54 ± 0.14,0.69 ± 0.13 vs 0.59 ± 0.04,P < 0.05),and decreased gradually later. There were significant differences at each time point except 1 h and 2 h,when compared with those in the NC group (0.71 ± 0.14 or 0.69 ± 0.13 vs 0.47 ± 0.10,0.38 ± 0.08 or 0.59 ± 0.04 vs 0.47 ± 0.09,0.25 ± 0.07 or 0.29 ± 0.05 vs 0.46 ± 0.10,0.20 ± 0.06 or 0.20± 0.04 vs 0.43 ± 0.09,P < 0.05),whereas there was no significant difference between BN and SAP groups at each time point. The result of PAF-R protein showed that the change of PAF-R protein in the SAP group and the BN group was consistent with that of PAF-R mRNA. There were significant differences at each time point except 1 h,when compared with those in the NC group (0.90 ± 0.02 or 0.80 ± 0.05 vs 0.

关键词： Acute pancreatitis Platelet activating factor receptor BN52021

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鲁迅在出版活动中的市场意识探析

海南大学学报（人文社会科学版） 2010年第3期28卷 88-91页

作者：郭志东琼台师范高等专科学校学报编辑部海南海口571100

虽然鲁迅从事出版活动的根本目的不是赢利,但是他有着强烈的读者意识,从内容到形式不断地追求完美,通过各种方式整合出版信息资源,注意出版物的宣传展示,这些都表现出他特有的市场意识。

关键词：鲁迅出版活动市场意识

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个人收入分配制度改革与劳动关系调整

山西大学学报(哲学社会科学版) 2011年第6期34卷 85-89页

作者：邸敏学郭志栋山西大学马克思主义研究所

个人收入分配制度改革已经纳入"十二五"规划。个人收入分配制度改革与劳动关系调整的目的具有一致性,二者存在的主要问题大体是一致的。推进这项改革的路径在于,按照"形成企业和职工利益共享机制",调整劳动关系,理顺初次分配、再分配关... 详细信息

个人收入分配制度改革已经纳入"十二五"规划。个人收入分配制度改革与劳动关系调整的目的具有一致性,二者存在的主要问题大体是一致的。推进这项改革的路径在于,按照"形成企业和职工利益共享机制",调整劳动关系,理顺初次分配、再分配关系,逐步达到预期目的。

关键词：个人收入分配制度改革劳动关系

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复合厌氧生物滤池处理铁路高浓度粪便污水

铁道标准设计 2012年第11期 117-119页

作者：郭治东阴俊霞中铁工程设计咨询集团有限公司北京陇奥环保科技发展有限公司

随着动车及高速动车系统在铁路运营中广泛应用,产生了大量的高浓度粪便污水,而这些高浓度粪便污水都不能直接排入城市下水道。着重研究采用一种低动力的复合厌氧处理技术(hybrid anaerobic filter)———HAF处理高浓度粪便污水。HAF复... 详细信息

随着动车及高速动车系统在铁路运营中广泛应用,产生了大量的高浓度粪便污水,而这些高浓度粪便污水都不能直接排入城市下水道。着重研究采用一种低动力的复合厌氧处理技术(hybrid anaerobic filter)———HAF处理高浓度粪便污水。HAF复合厌氧生物滤池内的填料有着很大的比表面积,可以附着大量的微生物,生物相丰实,同时依靠填料截留了大量的活性污泥,因此降解有机物的能力和效率比传统的方法大大提高。HAF复合厌氧生物滤池工艺安装简单,无需专人管理,动力消耗低,降解效率高,非常适用于铁路高浓度粪便污水处理。

关键词：铁路高浓度粪便污水复合厌氧生物滤池低能耗

Influence of Anthesis Date and Boll Branch Position on Qualities and Super-molecular Structure of Cotton Fiber

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Agricultural Sciences in China 2002年第6期1卷 636-641页

作者： SHAN Shi-hua, SHI Pei, SUN Xue-zhen, ZHOU zhi-guo and BIAN dong-cai(Agronomy Department of Shandong Agricultural University, Taian 271018 , P. R . China Tianjin Institute of Textile , Tianjin 300160 , P.R. China ) Agronomy Department of Shandong Agricultural University Taian 271018 P. R. China Tianjin Institute of Textile Tianjin 300160 P. R. China

The influences of the anthesis date and the fruiting branch positions on parameters of cotton fiber quality and super-molecular structure were studied. Fiber quality parameters, such as cotton fiber length, micronair, maturity and fiber strength deteriorated with postponing the anthesis date and decreasing temperature. When anthesis happened on the same date, the fruiting branch positions affected the fiber quality parameters, and the fiber quality parameters of the lower portion turned out to be higher than that of the upper portion, although the difference was insignificant. The super-molecular structure of the lower portion turned out to be superior to that of the upper portion at the early anthesis date and high temperature, which is in accordance with what was mentioned above, but the fruiting branch positions did not affect the impact of the anthesis date on the super-molecular structure.

关键词： Cotton Anthesis date Fruiting branch positions Fiber qualities Super-molecular structure

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光伏发电系统三相逆变并网及其仿真研究

河北北方学院学报（自然科学版） 2019年第7期35卷 5-13页

作者：郭志冬河南省高校节能照明工程技术研究中心三门峡职业技术学院机电工程学院

目的太阳能由于其清洁、可再生等诸多优点被全世界广泛关注。光伏发电能够节能减排、降低能耗,是目前电力专家认为的最重要的新能源模式之一。光伏发电最重要的是电网并网输电,光伏发电器件把太阳能转换成的电能通过逆变器进行逆变并网... 详细信息

目的太阳能由于其清洁、可再生等诸多优点被全世界广泛关注。光伏发电能够节能减排、降低能耗,是目前电力专家认为的最重要的新能源模式之一。光伏发电最重要的是电网并网输电,光伏发电器件把太阳能转换成的电能通过逆变器进行逆变并网发电。构建光伏发电逆变并网仿真技术,通过仿真复现实际的发电系统,在仿真系统中得到实际系统的某些参数和解决故障方案。方法对三相并网系统进行分析和仿真。采用三相结构,并建立该结构的仿真模型,利用变换和锁相环技术对并网时的电压幅值、频率以及相位进行跟踪。结果结果表明,研究的三相逆变并网仿真模型能够实现逆变器侧的线电压对电网侧的线电压的信息跟踪,对逆变器输出的三相波形的矫正效果良好。结论构建的光伏发电逆变并网仿真技术能够保证顺利并网,并尽可能避免各种故障的发生。

关键词：光伏发电三相逆变并网 SPWM技术锁相环技术

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang guo-Cui Mao Hui-Lin Jiang Bao-Xia dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface