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| 1 | Strong ozone production at a rural site in the North China Plain: Mixed effects of urban plumes and biogenic emissions显示文摘Regional ozone(O_3) pollution has drawn increasing attention in China over the recent decade, but the contributions from urban pollution and biogenic emissions have not been clearly elucidated. To better understand the formation of the regional O_3 problem in the North China Plain(NCP), intensive field measurements of O_3 and related parameters were conducted at a rural site downwind of Ji'nan, the capital city of Shandong province, in the summer of 2013. Markedly severe O_3 pollution was recorded, with the O_3 mixing ratios exceeding the Chinese national ambient air quality standard on 28 days(a frequency of 78%) and with a maximum hourly value of 198 ppbv. Extensive regional transport of wellprocessed urban plumes to the site was identified. An observation-constrained chemical box model was deployed to evaluate in situ photochemical O_3 production on two episodes.The results show that the in situ formation accounted for approximately 46% of the observed O_3 accumulation, while the remainder(~54%) was contributed by regional transport of the O_3-laden urban plumes. The in situ ozone production was in a mixed controlled regime that reducing either NOx or VOCs would lead to a reduction of ozone formation. Biogenic VOCs played an important role in the local ozone formation. This study demonstrates the significant mixed effects of both anthropogenic pollution from urban zones and biogenic emission in rural areas on the regional O_3 pollution in the NCP region,and may have general applicability in facilitating the understanding of the formation of secondary pollution over China. | Ruihan Zong Xue Yang Liang Wen Caihong Xu Yanhong Zhu Tianshu Chen Lan Yao Liwei Wang Junmei Zhang Lingxiao Yang Xinfeng Wang Min Shao Tong Zhu Likun Xue Wenxing Wang | 2018 | Journal of Environmental Sciences2018，30，9： | 8 |
| 2 | Design of the low-loss waveguide coil for interferometric integrated optic gyroscopes显示文摘With the development of manufacturing technology,the propagation loss of the planar waveguide is getting lower and lower,and the shot-noise-limited sensitivity of an HOG will be greatly improved.When the propagation loss is getting lower,improper coupling-out waveguide in the waveguide coil may lead to non-ignorable bending loss and crosstalk because of the small radius of curvature and X-junction.In this paper,different couplingout waveguides have been designed.After calculation and optimization by the beam propagation method,we found the proper coupling-out waveguide having relatively low propagation loss,which can improve the sensitivity of the HOG. | Yao Fei Tianshu Yang Zhaofeng Li Wen Liu Xiaodong Wang Wanhua Zheng Fuhua Yang | 2017 | Journal of Semiconductors2017，38，4： | 1 |
| 3 | Cideb, an ER- and Lipid Droplet-Associated Protein, Mediates VLDL Lipidation and Maturation by Interacting with Apolipoprotein B显示文摘 | Jing Ye John Zhong Li Yang Liu Xuanhe Li Tianshu Yang Xiaodong Ma Qing Li Zemin Yao Peng Li | 2009 | Cell Metabolism2009，，2： | 1 |
| 4 | Neuronal NR4A1 deficiency drives complement-coordinated synaptic stripping by microglia in a mouse model of lupus显示文摘Neuropsychiatric lupus(NPSLE)is a frequent manifestation of systemic lupus erythematosus(SLE)that occurs in 40-90%of SLE patients;however,the underlying mechanisms remain elusive,causing a severe lack of therapeutic targets for this condition.Here,we show that complement-coordinated elimination of synapses participated in NPSLE in MRL/lpr mice,a lupus-prone murine model.We demonstrated that lupus mice developed increased anxiety-like behaviors and persistent phagocytic microglial reactivation before overt peripheral lupus pathology. | Xiaojuan Han Tianshu Xu Congzhu Ding Dandan Wang Genhong Yao Hongwei Chen Qijun Fang Gang Hu Lingyun Sun | 2022 | Signal Transduction and Targeted Therapy2022，7，3： | 1 |
| 5 | Ferroelectric,magnetic,and optical properties of Aurivillius compound Bi_(5)FeTi_(2.5)Co_(0.5)O_(15)显示文摘Bi_(5)FeTi_(2.5)Co_(0.5)O_(15)(BFTC)ceramics was successfully synthesized using the sol-gel method.It exhibits simultaneously visible-light response,ferroelectric and weak ferromagnetic orders at room temperature.The narrow band gap of 2.06 eV was determined via the UVevis diffuse absorption spectrum.The x-ray photoelectron spectroscopy results show that the Fe ions in the samples is 3 t and 2 t valence states while the doped Co ions is 2 t valence state.The BFTC sample undergoes a ferromagnetic-like transition at~552 K.Weak ferromagnetism is mainly due to spin-canting of Fe-based and Co-based sublattices via Dzyaloshinskii-Moriya(DM)interaction.Dielectric loss and dielectric modulus exhibit the characteristics of dielectric relaxation,which can be ascribed to oxygen/vacancy hopping.These results reveal many potentially useful physical phenomena and open a new avenue to design of novel solar-energy conversion devices and multiferroic applications. | Hui Sun Yuying Wu Xi Xie Yuxi Lu Tianshu Yao Jiansheng Zhong Xiaobing Chen | 2018 | Journal of Materiomics2018，4，4： | 0 |
| 6 | Ultrafast dynamics of photoexcited carriers and coherent phonons in ultrathin Bi;Te;thermoelectric films显示文摘The ultrafast dynamics of photoexcited carriers and coherent phonons in ultrathin Bi;Te;thermoelectric films are studied through transient differential transmission spectroscopy.An ultralow frequency coherent optical phonon at 0.16 THz emerges,especially in ultrathin films,and it is ascribed to interlayer breathing modes.It can divide the ultrathin films into two groups which have outof-phase vibration along the normal of a film plane,causing a destructive interference between in-plane propagating thermal waves in the two groups of quintuple layers,and thus possibly reducing the thermal conductivity of the ultrathin films.The excitation power dependence of ultrafast dynamics reveals carrier-carrier scattering dominating thermalization,which provides a microscopic understanding of the reported high electrical conductivity and anomalously high power factor of ultrathin Bi;Te;films at room temperature. | Zemin Xu Jiandong Yao Guowei Yang Tianshu Lai | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，1： | 0 |
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