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A Compact and Highly Efficient Silicon-Based Asymmetric Mach–Zehnder Modulator with Broadband Spectral Operation

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Chinese Physics letters 2011年第7期28卷 122-125页

作者： ZHOU liang lI Zhi-Yong XIAO Xi XU Hai-hua FAN Zhong-Chao HAN Wei-hua YU Yu-De YU Jin-Zhong State Key laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083 Engineering Research Center for Semiconductor Integrated Technology Institute of SemiconductorsChinese Academy of SciencesBeijing 100083

An asymmetric Mach–Zehnder electro-optic modulator is demonstrated by using a silicon-based p-i-n diode embedded in compact 200µm long phase *** measured figure of merit Vπl=0.23 V⋅mm shows highly efficient modulation by the device,and an open eye−diagram at 3.2 Gbit/s confirmed its fast electro-optic *** with the grating coupler,the device exhibits a broad operational wavelength range of 70 nm with a uniform 18 dB extinction ratio covering the C−band and part l-band of optical communication.

关键词： modulator Highly Compact

Wear Mechanism of Iron-based Alloy Coating by Arc Spraying

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Journal of Iron and Steel Research International 2016年第8期23卷 834-841页

作者： Zeng-rong lI De-yuan lI Nan-nan ZHANG he huaNG Xin WANG School of Materials Science and Engineering Shenyang University of Technology School of Mechanical Science and Engineering Shenyang Ligong University

The arc spraying technique was adopted to prepare three types of iron-based coatings including 08Mn2 Si,4Cr13,and 65 ***,the metallurgical microscope and scanning electron microscope（SEM）were used to analyze the microstructure of these ***,a DPT-5dye penetrant was painted on the surface of the coatings to simulate the oil fluid,so as to observe its penetration in the pore *** MMU-5Gend-face hightemperature wear tester was used to carry out wear-resistance tests on these coatings and give comparison with grey cast *** experimental results showed that the 4Cr13 coating exhibited the best wear resistance under oil batch lubrication *** to the study of these coating structures,it was discovered that three coatings presented topology-like structures due to the accumulation of flat particles on the ***,it was found that zonal oxides were mixed in particles with some unmolten particles,pores,and ***,the larger pores were mutually connected by gap-like *** existence of FeO in the coating and the pore structures keep oil in acted antifriction effects.

关键词： spraying pores tester metallurgical topology hardness friction penetration prepare aluminium

Necessary and Sufficient Conditions for Boundedness of Commutators of Bilinear Fractional Integral Operators on Morrey Spaces

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Journal of Mathematical Research with Applications 2016年第6期36卷 711-717页

作者： Suixin he Jiang ZHOU School of Mathematics and System Sciences Xinjiang University

In this paper,we obtain that b∈ BMO（R） if and only if the commutator[b,I]is bounded from the Morrey spaces l（R）×l（R） to l（R）,for some appropriate indices p,q,λ,μ.Also we show that b ∈ lip（R） if and only if the commutator[b,I]is bounded from the Morrey spaces l（R）×l（R） to l（R）,for some appropriate indices p,q,λ,μ.

关键词： fractional integral operator Morrey spaces commutators BMO lipschitz

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一种数控电位器调节的压电陶瓷驱动电源

压电与声光 2012年第2期34卷 253-256,261页

作者：贺斌陈华谢红霞广西大学计算机与电子信息学院广西南宁530004

设计了一种用于驱动数字共焦显微仪压电陶瓷物镜驱动器,实现数控电位器调节的压电陶瓷驱动电源,由单片机系统、前级高压稳压电路、数控电位器、功率放大电路、高压稳压电源和放电回路组成。采用前级高压稳压代替电压放大级作为输入,通... 详细信息

设计了一种用于驱动数字共焦显微仪压电陶瓷物镜驱动器,实现数控电位器调节的压电陶瓷驱动电源,由单片机系统、前级高压稳压电路、数控电位器、功率放大电路、高压稳压电源和放电回路组成。采用前级高压稳压代替电压放大级作为输入,通过高分辨率的数控电位器调节,经功率放大和放电回路后驱动压电陶瓷驱动器。该驱动电源输出电压稳定,数控可调且随输入电压呈线性变化,可实现对电压精密控制,适用于驱动压电陶瓷等容性负载。

关键词：压电陶瓷驱动电源高压稳压数控电位器高精度

Cold-region environments along the China-Russia Crude Oil Pipeline and their management

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Research in Cold and Arid Regions 2010年第2期2卷 129-136页

作者： RuiXia he HuiJun Jin lanZhi l(U) Shaoling Wang State Key laboratory of Frozen Soils Engineering Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of SciencesLanzhouGansu 730000China

The cold-region eco-environments along the China-Russia Crude Oil Pipeline (CRCOP) in northern Northeast China are in disequilibrium due to the combined influences of pronounced climate warming and intensive anthropogenic *** is evidenced by the sharp areal reduction and northward shifting of the boreal forests,shrinking of wetlands,enhancing of soil erosion,accelerating degradation of permafrost and deteriorating of cold-region *** degradation of permafrost plays an important role as an internal drive in the eco-environmental *** components of the cold-region eco-environments,including frozen ground,forests,wetlands and peatlands,forest fires and 'heating island effect' of rapid urbanization,are interdependent,interactive,and integrated in the boreal *** construction and long-term operation of the CRCOP system will inevitably disturb the cold-region environments along the ***,a mandatory and carefully-elaborated environ-mental impact statement is indispensable for the proper mitigation of the ensued adverse *** management,effective protection and practical rehabilitation of the damaged cold-region environments are a daunting,costly and long-term *** recommended measures for protection and restoration of permafrost eco-environments along the pipeline route include adequate investigation,assessment and monitoring of permafrost and cold-region environments,compliance of pipeline construction and operation codes for environmental management,proper and timely re-vegetation,returning the cultivated lands to forests and grasslands,and effective mitigation of forest fire hazards.

关键词： China-Russia Crude Oil Pipeline permafrost degradation cold-region eco-environments rehabilitation

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以“直接绩效考核”破解质量返工问题

中国人力资源开发 2008年第12期25卷 40-41页

作者：惠青山何花广东工业大学广东省社会科学院

因质量问题而返工的现象在很多企业都存在。本文分析质量返工的危害及其成因,并提出采用系统的直接绩效考核法解决这一问题。

关键词：质量问题返工直接绩效考核法绩效管理

Perfusion of gastrodin in abdominal aorta for alleviating spinal cord ischemia reperfusion injury

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Asian Pacific Journal of Tropical Medicine 2016年第7期9卷 678-683页

作者： hua Fang Jing-Chao Zhang Miao Yang hua-Feng li Jian-Ping Zhang Fang-Xiang Zhang Quan-Yun Wang Ru-Rong Wang Jin liu Department of Anesthesiology Guizhou Provincial People's Hospital Department of Anesthesiology Affiliated People's Hospital of Guizhou Medical University Department of Anesthesiology West China Second University Hospital Department of Anesthesiology West China HospitalSichuan University

Objective:To observe the effects of perfusion of the gastrodin in abdominal aorta for alleviating the spinal cord ischemia reperfusion injury(SCIRI).Methods:A total of 36 New Zealand white rabbits were divided randomly into sham-operated group(group S),control group(group C) and gastrodin group(group G),12 rabbits for each *** abdominalis infrarenalis blocking method was applied to establish the SCIRI *** changes of motor evoked potentials(MEPs) before the ischemia and on 30 min,60 min,6 h,12 h and 24 h of reperfusion of the gastrodin were respectively recorded,and the neurologic function score before the ischemia,on the 6 h,12 h and 24 h of the reperfusion of the gastrodin were *** the changes of the concentration of serum neuron specific enolase(NSE),interleukin(Il)-l β and Il-8 were measured before the ischemia,after 45 min of ischemia,and on 30 min,60 min,6 h,12 h and 24 h of reperfusion of *** the levels of spinal cord nerve cells mitochondrial superoxide dismutase(SOD),reactive oxygen species(ROS),glutathione peroxidase(GSH-PX),malondialdehyde(MDA),total antioxidant capacity(T-AOC) and mitochondrial swelling degree(MSD) were tested and the histopathologic changes in spinal cord tissues were ***:The levels of the NSE,Il-lfter the ischemβ,Il-8,ROS,MDA and MSD of group C were all significantly elevated aia(Phe levels of the spinal nerve cell mitochondria SOD,GSH-PX and T-AOC were all significantly reduced(Pl cord tissue pathology were damaged significantly(Phe rate of motor neuron abnormalities and the damages of spinal cord tissue pathology of group G were significantly milder than those of group C(Phe levels of NSE,Il-lROS,MDA and MSD were significantly lower than those of group C(Pl-8,he levels of SOD,GSH-PX and T-AOC were all significantly higher than those of group C(Phe recovery of neurologic function score during the reperfusion of gastro

关键词： Gastrodin Spinal cord ischemia reperfusion injury Mitochondria Motor evoked potential

On l(1, 2)-Edge-labelings of Some Special Classes of Graphs

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Journal of Mathematical Research with Applications 2014年第4期34卷 403-413页

作者： Dan he Wensong lIN Department of Mathematics Southeast UniversityJiangsu 210096P. R. China

For a graph G and two positive integers j and k, an m-l(j, k)-edge-labeling of G is an assignment on the edges to the set {0,..., m}, such that adjacent edges receive labels differing by at least j, and edges which are distance two apart receive labels differing by at least k. The λ′j,k-number of G is the minimum m of an m-l(j, k)-edge-labeling admitted by *** this article, we study the l(1, 2)-edge-labeling for paths, cycles, complete graphs, complete multipartite graphs, infinite ?-regular trees and wheels.

关键词： l(j,k)-edge-labeling line graph path cycle complete graph complete multipartite graph infinite △-regular tree wheel

Study on Focal Mechanism Changing Characteristics of the 2013 Zogang-Markam Ms6. 1 Earthquake Sequence

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Earthquake Research in China 2016年第1期30卷 13-21页

作者： he Chang Zhu Hang Earthquake Administration of Sichuan Province Chengdu 610041 China

The M_S6. 1 earthquake was a foreshock-mainshock-aftershock type which occurred in the boundary region between Zogang and Markam counties on August 12,2013. Within 9hours before the main shock seven earthquakes of greater than M_l2. 0 occurred,with a maximum of M_l4. 7. In this paper,the earthquake focal mechanism changing process of the Zogang-Markam M_S6. 1 earthquake sequence is studied by calculating the correlation coefficient of body wave spectral amplitudes,and the result shows that the correlation coefficients of spectral amplitude of foreshocks present high value fluctuation with an average value of 0. 86,which shows that the focal mechanism of foreshocks are similar;and the correlation coefficients of spectral amplitude of aftershocks present low value,which shows that the possibility of a large earthquake is not high after a time.

关键词： Zogang-Markam Ms6. 1 earthquake Earthquake sequence Focal mechanismSpectral amplitude correlation coefficient