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您的检索式：作者名="Zenghui Gu"
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| 1 | Classification and regionalization of the forming environment of windblown sand disasters along the Tarim Desert Highway显示文摘Through the systematic field survey and observations, the factor quantification as well as setting the criteria, the sand disaster-forming environment along the Tarim Desert Highway can be divided into four grades by the classification and regionalization based on fuzzy mathematics. The length of the regions with significant sand disaster accounted for 37.1% of the total highway length. Particularly, the area along the Tarim Desert Highway, based on the sand disaster-forming environment classification as well as the difference in the five basic landform units along the highway, combined with the difference of wind regime, can be divided into five regions, in which the length of the regions suffering severe sand damage occupied 64.3% of the total highway length. In addition, the index of disaster formation grade along the highway decreased from north to south, showing a repeated spatial pattern in small length scales. | LEI JiaQiang LI ShengYu FAN DongDong ZHOU HongWei GU Feng QIU YongZhi XU Bo LIU Shang DU WenYi YAN ZengHui WANG YongChang | 2008 | Chinese Science Bulletin2008，53，S2： | 11 |
| 2 | Coupled-ridge waveguide quantum cascade laser array lasing at λ~5μm显示文摘In this work,we demonstrated high-power quantum cascade laser(QCL)arrays lasing at λ~5μm by employing an optimized coupled-ridge waveguide(CRW)structure.Five-element QCL arrays were simulated and fabricated through a two-step etching method to extend the CRW structure to a mid-wave infrared regime.A lateral far-field with the main peak near a diffraction-limited intensity curve of about 10°was observed by properly designing a geometric shape of the ridges and interspaces.By introducing a buried 2nd-order distributed feedback(DFB)grating,substrate emission with a radiation power above 1 W at 25℃ is achieved.Single longitudinal mode operation is obtained by changing the temperature of the heatsink with a good linear wavelength tuning coefficient of -0.2 cm^(-1)/K. | Pengchang Yang Jinchuan Zhang Zenghui Gu Chuanwei Liu Yue Zhao Fengmin Cheng Shenqiang Zhai Ning Zhuo Junqi Liu Lijun Wang Shuman Liu Fengqi Liu | 2021 | Journal of Semiconductors2021，42，9： | 1 |
| 3 | Graphene-integrated waveguides:Properties,preparation,and applications显示文摘Graphene-integrated waveguides(GIWGs)have shown immense potential for applications in next-generation datacom technology due to graphene’s compactness and its functional complementarity with traditional optical waveguides.However,the fabrication techniques of GIWGs lack scalability for commercial applications.Here we discuss the recent developments of GIWGs in two-dimensional optoelectronics by focusing on their properties,wave–matter interaction mechanisms,and fabrication techniques.We highlight representative advances on the advantages and potential applications of GIWGs in telecom networks.Finally,we outline major challenges and development trends to bridge the gap between proof-of-concept demonstrations and practical applications. | Kaili Chang Zenghui Li Yuzong Gu Kaihui Liu Ke Chen | 2022 | Nano Research2022，15，11： | 1 |
| 4 | Investigation of Atmospheric Pressure Dielectric Barrier Glow Discharge in Argon/Ammonia Mixture显示文摘In this paper,the influence of ammonia admixture on argon discharge properties is investigated.Electrical measurements,as well as ten-nanoseconds-exposure photographs taken by an intensified charge-coupled device(ICCD)camera,are employed to confirm the existence of atmospheric pressure glow discharge(APGD)in Ar/NH3mixture.The breakdown voltage and transition voltage between APGD and filamentary discharge are studied at various ammonia concentrations.The results show that a small amount of NH3can lead to APGD due to the Penning ionization of NH3molecules by metastable argon,and the breakdown voltage increases with the growth in NH3concentrations owing to the electronegative feature of NH3.The optical emission spectrum of Ar/NH3APGD is analyzed.Besides,gas temperature is estimated at 327 K by the diagnoses of the OH(A-X)(0,0)band of the spectrum. | ZHANG Zenghui ZHANG Guanjun SHAO Xianjun CHANG Zhengshi GU Chtmhui | 2013 | 高电压技术2013，39，9： | 0 |
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