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| 1 | A 23 GHz high-temperature superconducting microstrip filter for radio astronomy显示文摘This paper reports a 6-pole high-temperature superconducting (HTS) microstrip bandpass filter for radio astronomy applications. The filter has a center frequency of 23 GHz and a bandwidth the 2 GHz. We have made many efforts, such as adopting 0.25-mm-thick substrate, carefully designing the housing box and filter layout, to solve the problems in realizing a K-band planar filter. A special straight-line half-wavelength resonator (center-widen resonator) was also designed to reduce the insertion loss of the filter. The measured results showed a midband insertion loss of 0.11 dB with a ripple of 0.4 dB, and a return loss better than 11.5 dB. Good agreement was obtained between simulated and measured results. | GAO Lu GUO Jin WANG YueHui YU Tao ZHANG Qiang LI ChunGuang ZHANG XueQiang LI Hong LI JunJie LI WuXia GU ChangZhi MENG JiBao FENG Ji HE YuSheng | 2009 | Chinese Science Bulletin2009，54，19： | 6 |
| 2 | Shh signaling guides spatial pathfinding of raphespinal tract axons by multidirectional repulsion显示文摘相对,很少对在发展在下降 serotonergic raphespinal 道(RST ) 位于空间 pathfinding 下面的分子的机制被知道针的绳索,为疼痛的最重要的神经小径之一,感觉并且马达功能。我们提供证据藏匿板的声音的刺猬(嘘) 是的那块腹的地板为在 anterior-to-posterior (A-P ) 和 medial-to-lateral (M-L ) 的减少的坡度的建立负责在腹的针的绳索的方向在 serotonergic RST 轴突设计期间。嘘小径的下游的部件,修正了 1 (Ptch1 ) 并且 Smoothened (Smo ) ,在 serotonergic 被表示尾的缝原子核并且在下降 serotonergic RST 轴突充实。serotonergic RST 轴突的可散开的嘘排斥被显示被 Shh-Ptch1 相互作用和 Smo 的 derepression 调停。用合作文化试金,我们证明 A-P 分级排斥由嘘发信号调停了尾地通过了 serotonergic 轴突腹的针的绳索, M-L 分级排斥由发信号的嘘调停了同时限制了 serotonergic 轴突到腹、腹侧面的索。serotonergic RST 轴突的突出的 pathfinding 错误在各种各样的嘘, Ptch1 和 Smo 异种被观察。我们断定嘘调停信号的 multidirectional 排斥被要求在 A-P 方向推下降 serotonergic RST 轴突,并且在 M-L 方向把这些轴突限制为腹、腹侧面的索。这是 serotonergic RST 轴突的嘘调停信号的 multidirectional 排斥维持的第一示范在发展的空间轴突 pathfinding 针的绳索。 | Lijuan Song Yuehui Liu Yang Yu Xin Duan Shening Qi Yaobo Liu | 2012 | Cell Research2012，22，4： | 4 |
| 3 | Effects of Forest Roads on Habitat Pattern for Sables in Da Hinggan Mountains, Northeasten China显示文摘The anthropogenic managements of forest have created a network of roads resulting in the loss and alternation of habitat. To better understand road′s impact on animal habitats, we assessed the habitat pattern of sables(Martes zibellina), one of rodents within national first-class protected species, when roads are considered in Huzhong area in Da Hinggan Mountains, northeastern China. Employing published literatures about behavior ecology, aerial photographs and forest stand maps, we classified the study area into three habitat types including best-suitable, suitable and unsuitable habitats based on sable habitat requirements at the landscape scale including four variables derived from forest source map with attribute database. Results indicated the loss and significant fragmentation of best-suitable habitat and home range habitat when roads, especially 150 m avoidance distance of roads, were considered. The roads reduced and fragmented highly suitable habitats more significantly during earlier development period than the later development period. Additionally, the suitable area percentage increased with increasing distance to roads. This study helped to identify the suitable area for sables and location of sable population. Also, this study suggested the passage construction and road management involving road closure and removal will reduce the fragmentation functionally and benefit the sable population. | LI Yuehui WU Wen XIONG Zaiping HU Yuanman CHANG Yu XIAO Duning | 2014 | Chinese Geographical Science2014，24，5： | 4 |
| 4 | Two- DimensionalNumerical Model and Turn-on Performance Simulationof Reversely Switched Dynistor显示文摘 | Lin Liang Quan Wei Yuehui Yu | 2014 | IEEE Transactions on Power Electronics2014，29，1： | 1 |
| 5 | Simulating Impact of Larch Caterpillar(Dendrolimus superans)on Fire Regime and Forest Landscape in Da Hinggan Mountains,Northeast China显示文摘Larch caterpillar (Dendrolimus superans) is very common in the Da Hinggan Mountains, Northeast China, affecting fire regime and forest ecosystem change at large spatio-temporal scales. In this study, we used a spatially explicit landscape model, LANDIS, to simulate the changes of fire regime and forest landscape under four larch caterpillar disturbance intensity levels scenarios in Huzhong forest area, northern of Da Hinggan Mountains. The results indicate that larch caterpillar disturbances would decrease fine fuel load and increase coarse fuel load in the 300 simulation years. Larch caterpillar disturbances would decrease fire frequency in the first 200 years, and the disturbances also decrease fire intensity and fire risk in the early and late stage of simulation. Larch caterpillar disturbances would decrease the area percent of larch cohorts and increase the proportion of white birch, and increase the degree of aggregation of white birch as a result of its strong seed dispersal and colonization ability. Disturbances would also decrease the mature and over-mature larch cohorts and increase all cohorts of white birch, especially the mature and over-mature cohorts. Larch caterpillar disturbances will decrease the stability of forest landscape, therefore,some measures preventing in- sect outbreak and ensuring the sustainable management of forest ecosystem should been taken in the study area. | CHEN Hongwei HU Yuanman CHANG Yu BU Rencang LI Yuehui LIU Miao | 2011 | Chinese Geographical Science2011，21，5： | 1 |
| 6 | Thin Emitter Structure Improved Turn-on Characteristics in RSD 显示文摘 | Liang Lin Yu Yuehui Zhou Yuming | 2008 | Transaction of Tianjin University2008，14，3： | 1 |
| 7 | Precursor compound enabled formation of aqueous-phase CdSe magic-size clusters at room temperature显示文摘The formation pathway of aqueous-phase colloidal semiconductor magic-size clusters(MSCs)remains unrevealed.In the present work,we demonstrate,for the first time,a precursor compound(PC)-enabled formation pathway of aqueous-phase CdSe MSCs exhibiting a sharp absorption peaking at about 420 nm(MSC-420).The CdSe MSC-420 is synthesized with CdCl2 and selenourea as the respective Cd and Se sources,and with 3-mercaptopropionic acid or L-cysteine as a ligand.Absorption featureless CdSe PCs form first in the aqueous reaction batches,which transform to MSC-420 in the presence of primary amines.The coordination between primary amine and Cd^(2+)on PCs may be responsible to the PC-to-MSC transformation.Upon increasing the reactant concentrations or decreasing the CdCl_(2)-ligand feed molar ratios,the Cd precursor self-assembles into large aggregates,which may encapsulate the resulting CdSe PCs and inhibit their transformation to MSC-420.The present study sheds essential light on the syntheses and formation mechanisms of nanocrystals. | Min Zhao Qingyuan Chen Yongcheng Zhu Yuehui Liu Chunchun Zhang Gang Jiang Meng Zhang Kui Yu | 2022 | Nano Research2022，15，3： | 1 |
| 8 | Applications and Therapeutic Actions of Complementary and Alternative Medicine for Women with Genital Infection显示文摘 | Chenfang Liu Yuehui Zhang Sai Kong Ilene Tsui Yang Yu Fengjuan Han Xiaoke Wu | 2014 | Evidence-Based Complementary and Alternative Medicine2014，，： | 1 |
| 9 | Correlating the electronic structures of metallic/semiconducting MoTe_(2)interface to its atomic structures显示文摘Contact interface properties are important in determining the performances of devices that are based on atomically thin two-dimensional(2D)materials,especially for those with short channels.Understanding the contact interface is therefore important to design better devices.Herein,we use scanning transmission electron microscopy,electron energy loss spectroscopy,and first-principles calculations to reveal the electronic structures within the metallic(1T)-semiconducting(2H)MoTe_(2)coplanar phase boundary across a wide spectral range and correlate its properties to atomic structures.We find that the 2 H-MoTe_(2)excitonic peaks cross the phase boundary into the 1 T phase within a range of approximately 150 nm.The1 T-MoTe_(2)crystal field can penetrate the boundary and extend into the 2H phase by approximately two unit-cells.The plasmonic oscillations exhibit strong angle dependence,that is a red-shift ofπ+σ(approximately 0.3–1.2 e V)occurs within 4 nm at 1 T/2 H-MoTe_(2)boundaries with large tilt angles,but there is no shift at zero-tilted boundaries.These atomic-scale measurements reveal the structure–property relationships of the 1 T/2 H-MoTe_(2)boundary,providing useful information for phase boundary engineering and device development based on 2 D materials. | Bo Han Chen Yang Xiaolong Xu Yuehui Li Ruochen Shi Kaihui Liu Haicheng Wang Yu Ye Jing Lu Dapeng Yu Peng Gao | 2021 | National Science Review2021，8，2： | 0 |
| 10 | Atomic origin of spin-valve magnetoresistance at the SrRuO3 grain boundary显示文摘Defects exist ubiquitously in crystal materials, and usually exhibit a very different nature from the bulk matrix.Hence, their presence can have significant impacts on the properties of devices.Although it is well accepted that the properties of defects are determined by their unique atomic environments, the precise knowledge of such relationships is far from clear for most oxides because of the complexity of defects and difficulties in characterization.Here, we fabricate a 36.8°Sr RuO3 grain boundary of which the transport measurements show a spin-valve magnetoresistance.We identify its atomic arrangement, including oxygen,using scanning transmission electron microscopy and spectroscopy.Based on the as-obtained atomic structure, the density functional theory calculations suggest that the spin-valve magnetoresistance occurs because of dramatically reduced magnetic moments at the boundary.The ability to manipulate magnetic properties at the nanometer scale via defect control allows new strategies to design magnetic/electronic devices with low-dimensional magnetic order. | Xujing Li Li Yin Zhengxun Lai Mei Wu Yu Sheng Lei Zhang Yuanwei Sun Shulin Chen Xiaomei Li Jingmin Zhang Yuehui Li Kaihui Liu Kaiyou Wang Dapeng Yu Xuedong Bai Wenbo Mi Peng Gao | 2020 | National Science Review2020，7，4： | 0 |
| 11 | The Role of Mouse Wnt9a in MA891 Breast Cancer Cell Proliferation显示文摘 | Xueqin Zheng Xiaonian Zhong Wenjing Meng Chengneng Mi Shuangmei Liu Yuehui Li Shen Yu fie Zhao Lin Zhang Dongxiang Li Dongsong Nie Yang Xiang | 2011 | Journal of Life Sciences2011，5，8： | 0 |
| 12 | Optical Probing of Free-Carrier Plasma Effects of MeV Ion Implanted Silicon显示文摘Boron ions have been implanted into silicon at an incident energy of 3 MeV to a dose of 5 x 10^(15) cm^(-2).Buried conductive layers have been formed in the silicon substrate after annealing at 1050℃ for 20s.Infrared(IR)reflection spectrain the wavenumber range of 500-4000cm-1 have been measured and interference fringes related to free-carrier plasma effects observed.By detailed theoretical analysis and computer simulation of the IR reflection spectra,the depth profile of the carrier concentration,the carrier mobility near maximum carrier concentration,and the carrier activation efficiency have been obtained.The physical interpretation of the results was given. | YU Yuehui ZOU Shichang ZHOU Zhuyun ZHAO Guoqing | 1995 | Chinese Physics Letters1995，12，1： | 0 |
| 13 | Changes of forest fire regime and landscape pattern under different harvesting modes in a boreal forest of Northeast China显示文摘Forest management such as timber harvesting shapes fire regimes and landscape patterns, and these patterns often differ significantly from those under natural disturbances. Our objective was to examine the effects of timber harvesting modes on fire regimes and landscape patterns in a boreal forest of Northeast China. We used a spatially explicit landscape model, LANDIS, to simulate the changes of forest landscape in the Huzhong forest region of the Great Khingan Mountains under no-cutting, clear-cutting, gradual-cutting and selective-cutting modes. Results showed that:(1) the fine fuel loadings generally decreased while the coarse fuel loadings increased with the increase of timber harvesting intensity;(2) the potential burn area significantly varied among different cutting modes, but the potential fire frequency had no obvious difference. Moreover, timber harvesting generally increased the potential fire risk;(3) clear-cutting mode significantly decreased the mean patch size and the aggregation of larch forests and increased the mean patch size and the aggregation of white birch forests. Therefore, clear-cutting mode should be abandoned, and selective-cutting mode be recommended for the sustainable forest management in the Great Khingan Mountains. | CHEN Hongwei HU Yuanman CHANG Yu BU Rencang LI Yuehui LIU Miao | 2015 | Journal of Arid Land2015，7，6： | 0 |
| 14 | Influence of Al-doping on electroluminescence of silicon-based films显示文摘A series of Al-doped silicon-rich silica (AlSiO) composite films have been prepared by a dual ion beam co-sputtering method with a Al, Si and SiO2 composite target. The content of Al and Si in the films can be adjusted by changing the surface area of Al and Si of the target. Visible electroluminescence (EL) from the samples is found to have only one luminescence band peaked at 510 nm (2.4 eV). Experimental results show that the doping of Al is beneficial to reducing the onset voltage and to increasing the intensity of EL. | WU Xuemei YE Chunnuan ZHUGE Lanjian DONG Yemin TANG Naiyun YU Yuehui NING Zhaoyuan YAO Weiguo | 2001 | Chinese Science Bulletin2001，46，24： | 0 |
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