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| 1 | Broadband achromatic metalens in terahertz regime显示文摘Achromatic focusing is essential for broadband operation, which has recently been realised from visible to infrared wavelengths using a metasurface. Similarly, multi-terahertz functional devices can be encoded in a desired metasurface phase profile. However, metalenses suffer from larger chromatic aberrations because of the intrinsic dispersion of each unit element. Here, we propose an achromatic metalens with C-shaped unit elements working from 0.3 to 0.8 THz with a bandwidth of approximately 91% over the centre frequency. The designed metalens possesses a high working efficiency of more than 68% at the peak and a relatively high numerical aperture of 0.385. We further demonstrate the robustness of our Cshaped metalens, considering lateral shape deformations and deviations in the etching depth. Our metalens design opens an avenue for future applications of terahertz meta-devices in spectroscopy, time-offlight tomography and hyperspectral imaging systems. | Qingqing Cheng Meilin Ma Dong Yu Zhixiong Shen Jingya Xie Juncheng Wang Nianxi Xu Hanming Guo Wei Hu Shuming Wang Tao Li Songlin Zhuang | 2019 | Science Bulletin2019,64,20: | 16 |
| 2 | Relationship between Carbon Isotope Discrimination and Grain Yield in Spring Wheat Cultivated under Different Water Regimes显示文摘在 C 植物,碳同位素辨别() 为谷物产量作为一个间接选择标准被建议了。报导关联在之间和不管多么的谷物产量,根据分析机关或织物高度不同,采样的舞台,和环境和水政体。在处于西北墨西哥的干燥条件在二个连续季节期间在春小麦执行的第一个实验( Ciudad Obregon , Sonora ),不同水处理被使用,相应于对世界范围的春小麦可得到的主要的水政体,并且在不同机关和谷物产量的价值之间的关系被检验。在终端下面(开花期以后) 水应力,谷物产量断然与被联系在在成熟的谷物并且在在开花期的叶,证实以前在地中海环境下面获得的结果。在下面(开花期前) 早,水应力和剩余潮湿强调,在谷物和收益之间的协会更弱并且高度取决于在播种在土壤存储的水的数量。没有关联被发现在之间,谷物在最佳的灌溉下面让步。在之间的关系和谷物产量也在 Ningxia 区域(北中国) 在 20 面包小麦栽培变种在二个连续季节期间被学习,由冬季干旱(开花期前水压力) 描绘了。小麦在另外一个在二个地点(Guyuan 和 Pengyang ) 并且在灌溉条件下面在雨美联储条件下面被种二(银川和 Huinong ) 。在 Huinong,庄稼也被暴露腌应力。高度重要的积极协会越过环境在叶和谷物和谷物收益之间被发现。在生长周期,在土壤的盐的存在,和在开花期前的灌溉的出现期间的降雨的在之间的关系和水的数量在播种在土壤存储了的在高度取决于的环境以内的产量,数量和分发。这二个实验证实了价值作为一种间接选择,为在开花期以后的水下面的产量和一个 phenotyping 工具的标准强调(包括的有限灌溉) 。 | Xing Xu Hanming Yuan Shuhua Li Richard Trethowan Philippe Monneveux | 2007 | Journal of Integrative Plant Biology2007,49,10: | 3 |
| 3 | Study of hot electrons generated from intense laser-plasma interaction employing Image Plate显示文摘Image Plate (IP) is convenient to be used and very suitable for radiation detection because of its advantages such as wide dynamic range, high detective quantum efficiency, ultrahigh sensitivity and superior linearity. The function mechanism and characteristics of IP are introduced in this paper. IP was employed in the study of hot electrons generated from intense laser-plasma interaction. The angular distri- bution and energy spectrum of hot electrons were measured with IP in the experi- ments. The results demonstrate that IP is an effective radiation detector for the study of laser-plasma interaction. | LIANG WenXi LI YuTong XU MiaoHua YUAN XiaoHui ZHENG ZhiYuan ZHANG Yi LIU Feng WANG ZhaoHua LI HanMing JIN Zhan WEI ZhiYi ZHAO Wei LI YingJun ZHANG Jie | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,10: | 2 |
| 4 | AQR is a novel type 2 diabetes-associated gene that regulates signaling pathways critical for glucose metabolism显示文摘Type 2 diabetes mellitus(T2 DM) is a common metabolic disease influenced by both genetic and environmental factors. In this study, we performed an in-house genotyping and meta-analysis study using three independent GWAS datasets of T2 DM and found that rs3743121, located 1 kb downstream of AQR,was a novel susceptibility SNP associated with T2 DM. The risk allele C of rs3743121 was correlated with the increased expression of AQR in white blood cells, similar to that observed in T2 DM models. The knockdown of AQR in HepG2 facilitated the glucose uptake, decreased the expression level of PCK2,increased the phosphorylation of GSK-3β, and restored the insulin sensitivity. Furthermore, the suppression of AQR inhibited the mTOR pathway and the protein ubiquitination process. Our study suggests that AQR is a novel type 2 diabetes-associated gene that regulates signaling pathways critical for glucose metabolism. | Chun Song Han Yan Hanming Wang Yan Zhang Huiqing Cao Yiqi Wan Lingbao Kong Shenghan Chen Hong Xu Bingxing Pan Jin Zhang Guohuang Fan Hongbo Xin Zicai Liang Weiping Jia Xiao-Li Tian | 2018 | Journal of Genetics and Genomics2018,45,2: | 1 |
| 5 | Eat, Drink, Firms, Government : An Investigation of Corruption from the Enter- tainment and Travel Costs of Chinese Firms显示文摘 | Cai Hongbin Hanming Fang Lixin Colin Xu | 2011 | Journal of Law and Economics2011,54,1: | 1 |
| 6 | Ab initio electronic transport study of two-dimensional silicon carbide-based p–n junctions显示文摘Two-dimensional silicon carbide(2d-SiC) is a viable material for next generation electronics due to its moderate,direct bandgap with huge potential.In particular,its potential for p–n junctions is yet to be explored.In this paper,three types of 2d-SiC-based p–n junctions with different doping configuration are modeled.The doping configurations refer to partially replacing carbon with boron or nitrogen atoms along the zigzag or armchair direction,respectively.By employing density functional theory,we calculate the transport properties of the SiC based p–n junctions and obtain negative differential resistance and high rectification ratio.We also find that the junction along the zigzag direction with lower doping density exhibits optimized rectification performance.Our study suggests that 2d-SiC is a promising candidate as a material platform for future nano-devices. | Hanming Zhou Xiao Lin Hongwei Guo Shisheng Lin Yiwei Sun Yang Xu | 2017 | Journal of Semiconductors2017,38,3: | 1 |
| 7 | Eat, drink, firms and government : An investigation of corruption from en- tertainment expenditures of Chinese firms 显示文摘 | Hongbin Cai Hanming Fang Lixin Colin Xu | 2011 | The Journal of Law and Economics2011,54,1: | 1 |
| 8 | Parametric Study of Operating Conditions on Performances of a Solid Oxide Electrolysis Cell显示文摘The operating conditions greatly affect the electrolysis performance and temperature distribution of solid oxide electrolysis cells(SOECs).However,the temperature distribution in a cell is hard to determine by experiments due to the limitations of in-situ measurement methods.In this study,an electrochemical-flow-thermal coupling numerical cell model is established and verified by both current-voltage curves and electrochemical impedance spectroscopy(EIS)results.The electrolysis performance and temperature distribution under different working conditions are numerically analyzed,including operating temperature,steam and hydrogen partial pressures in the fuel gas,inlet flow rate and inlet temperature of fuel gas.The results show that the electrolysis performance improves with increasing operating temperature.Increasing steam partial pressure improves electrolysis performance and temperature distribution uniformity,but decreases steam conversion rate.An inappropriately low hydrogen partial pressure reduces the diffusion ability of fuel gas mixture and increases concentration impedance.Although increasing the flow rate of fuel gas improves electrolysis performance,it also reduces temperature distribution uniformity.A lower airflow rate benefits temperature distribution uniformity.The inlet temperature of fuel gas has little influence on electrolysis performance.In order to obtain a more uniform temperature distribution,it is more important to preheat the air than the fuel gas. | CHEN Hanming WANG Jingyi XU Xinhai | 2023 | Journal of Thermal Science2023,32,6: | 0 |
| 9 | Wellbore temperature distribution during drilling of natural gas hydrate formation in South China sea显示文摘The natural gas hydrate resources in the South China Sea alone are about 85 trillion cubic meters.In the drilling process of marine gas hydrate,the natural gas hydrate will decompose and produce gas,as the rising of temperature and dropping of the pressure in the annulus.This process will have a significant impact on drilling safety.Therefore,it is necessary to study the wellbore temperature distribution during the drilling of marine hydrate layer.In this paper,the wellbore temperature distribution of safe drilling in hydrated formation is taken as the research goal,and the research status of relevant domestic and international wellbore temperatures was investigated.According to the characteristics of the marine environment and reservoir-forming characteristics of hydrate reservoirs in the South China Sea,the wellbore temperature distribution model of offshore drilling wellbore under the condition of hydrate decomposition was established.The temperature distribution curve of drilling straight wellbore in hydrate layer of South China Sea was obtained.When drilling the hydrate reservoir,the distribution regularity of the wellbore temperature is similar to that of the conventional offshore drilling wellbore.However,the temperature of the wellbore annulus near the hydrate decomposition site is lower than the ambient temperature,mainly due to the hydrate decomposition endothermic.In this paper,the sensitivity analysis of several main parameters of the wellbore temperature distribution of drilling straight wellbore in hydrate layer of South China Sea was carried out.Through the conduction of experiment and numerical simulation,we have get some new findings:(1)The hydrate saturation has little effect on the wellbore temperature;(2)As the drilling fluid displacement increases,the annulus temperature of the wellbore above the mudline increases,and the temperature of the wellbore below the mudline decreases continuously;(3)As the density of the drilling fluid increases,the temperature at the wellhead decreases,and the temperature at the bottom of the well increases slightly;(4)The greater the rate of penetration of the well,the temperature at the upper part of the wellbore decreases,and the temperature at the bottom of the wellbore increases;Among them,the penetration rate has the most obvious effect on the annular temperature.The results are expected to be helpful to guide the drilling process of marine gas hydrate and offer some references. | Xiaolong Zhao Yizhong Zhao Zenglin Wang Gang Chen Peng Li Wei Liang Xuefeng Gao Hanming Xu Lin Jiang Na Wei | 2021 | Petroleum2021,7,4: | 0 |