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| 1 | Multiple Fading Factors Kalman Filter for SINS Static Alignment Application显示文摘解决当系统模型和随机的信息精确地是未知的时,标准 Kalman 过滤器不能给最佳的答案的问题,单个褪色因素 Kalman 过滤器对简单系统合适。要不是有多变量的复杂系统,把单个褪色的因素用作不能是足够的一更多样地为协变性矩阵。在这份报纸,过滤算法的新多重褪色因素 Kalman 被介绍。由用开窗术计算革新顺序协变性的不偏的估计,褪色的因素矩阵被获得。用使因素矩阵褪色调整预言错误 Pk|k-1 的协变性矩阵,算法提供为不同过滤器隧道褪色的不同的率。建议算法被用于 strapdown 惯性的航行系统(罪恶) 起始的排列,和模拟和试验性的结果表明那,当实际系统噪音特征与预设值不同时,排列精确性能戏剧性地被升级。新算法对无常噪音不太敏感并且有参数的更好的评价效果。因此,它具有在实际应用的重要价值。 | GAO Weixi MIAO Lingjuan NI Maolin | 2011 | Chinese Journal of Aeronautics2011，24，4： | 27 |
| 2 | Clinical features and treatment status of hemifacial spasm in China显示文摘 | Wang Lin Hu Xingyue Dong Hongjuan Wang Wenzhao Huang Yue Jin Lingjing Luo Yumin Zhang Weixi Lian Yajun Liang Zhanhua Shang Huifang Feng Yabo wu Yiwen Chen Jun Luo Weifeng Wan Xinhua | 2014 | Chinese Medical Journal2014，，5： | 20 |
| 3 | Blocking meningeal lymphatic drainage aggravates Parkinson’s disease-like pathology in mice overexpressing mutated α-synuclein显示文摘Background:Abnormal aggregation of brainα-synuclein is a central step in the pathogenesis of Parkinson’s disease(PD),thus,it is reliable to promote the clearance ofα-synuclein to prevent and treat PD.Recent studies have revealed an essential role of glymphatic system and meningeal lymphatic vessels in the clearance of brain macromolecules,however,their pathophysiological aspects remain elusive.Method:Meningeal lymphatic drainage of 18-week-old A53T mice was blocked via ligating the deep cervical lymph nodes.Six weeks later,glymphatic functions and PD-like phenotypes were systemically analyzed.Results:Glymphatic influx of cerebrospinal fluid tracer was reduced in A53T mice,accompanied with perivascular aggregation ofα-synuclein and impaired polarization of aquaporin 4 expression in substantia nigra.Cervical lymphatic ligation aggravated glymphatic dysfunction of A53T mice,causing more severe accumulation ofα-synuclein,glial activation,inflammation,dopaminergic neuronal loss and motor deficits.Conclusion:The results suggest that brain lymphatic clearance dysfunction may be an aggravating factor in PD pathology. | Wenyan Zou Tinglin Pu Weixi Feng Ming Lu Ying Zheng Renhong Du Ming Xiao Gang Hu | 2019 | Translational Neurodegeneration2019，8，1： | 17 |
| 4 | The anti-endotoxic effect of o-aminobenzoic acid from Radix Isatidis显示文摘Aim: To study the anti-endotoxic effect of o-aminobenzoic acid (OABA) isolated from Banlangen(BLG). Methods: OABA was extracted and isolated from BLG and diluted into 0.5% solution. The concentration of endotoxin (ET) pretreated with OABA was quantitatively detected using Limulus test. The inhibition of ETinduced fever by OABA was measured in rabbits. The rates of lipopolysaccharides (LPS)-induced death in mice pretreated with or without OABA were the ncompared. The influence of OABA on the release of TNF-α and NO from macrophages induced by LPS was examined in mice. Results: After pretreatment with OABA, 84.4% of ET was destroyed. The ET-induced fever in rabbits decreased significantly and the rate of LPS-induced death in mice dropped from 70% to 20%. The release of TNF-α and NO induced by LPS in mice was inhibited dose-depen-dently when the concentration of OABA was between 0.125% and 0.5%.Conclusion: OABA isolated from BLG has an anti-endotoxic effect. | Jian-guoFANG Yun-haiLIU Wen-qingWANG WeiXIE Shu-xianFANG Hong-gangHAN | 2005 | Acta Pharmacologica Sinica2005，26，5： | 16 |
| 5 | ^(14)C measurement of forest soils in Dinghushan Biosphere Reserve显示文摘Organic carbon in forest soils of Qingyunsi and Wukesong profiles can be divided into fast and slow components. Δ14C values of these profiles decrease with increasing of depth. The Δ14C values in 30—40 cm depth interval of Wukesong profile are decreasing sharply until a very low value,showing that a strong geological environment change occurred about 1 560 years ago. The 14C apparent ages of Wukesong profile show that the coniferous and broad-leaf mixed forests around Wukesong profile have been developing since 425 a BP, which is consistent with historical documents. The penetrating depths of 'bomb 14C' in Qingyunsi and Wukesong profiles are 10 and 20 cm, respectively. | SHEN Chengde , LIU Dongsheng (LIU Tungsheng) , PENG Shaolin, SUN Yanmin , JIANG Mantao , Yl Weixi , XING Changping , GAO Quanzhou , LI Zhi’an and ZHOU Guoyi Guangzhou Institute of Geochemisry, Chinese Academy of Sciences, Guangzhou 510640, China Institute of Geology, Chinese Academy of Sciences , Beijing 100029, China South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650, China | 1999 | Chinese Science Bulletin1999，44，3： | 7 |
| 6 | Relationship between the downregulation of HLA class Ⅰ antigen and clinicopathological significance in gastric cancer显示文摘AIM: To discuss the expression of human leukocyte antigen (HLA) class I antigens in gastric cancer and correlate these with pathologic type and TNM stage.METHODS: The expression of HLA class I antigen was detected by immunohistochemistry in 185 specimens of gastric cancer, 20 gastric cancer specimens with lymphatic metastasis and 22 controls of normal gastric mucosa using four monoclonal antibodies.RESULTS: The expression of HLA class I antigen (B/C locus) was significantly downregulated in gastric cancer and in lymphatic metastasis than that in normal gastricmucosa (x2 = 7.712, P<0.05). The expression of other HLA class I antigens was also downregulated, but the change was slight. There was no relationship betweenthe downregulation of HLA class I antigen and that ofβ2m and LMP2. The expression of HLA class I (B/C locus) was statistically correlated with pathologic stage in gastric adenocarcinoma (x2= 4.164, P<0.05).CONCLUSION: The expression of HLA class I antigen (B/Clocus) was obviously downregulated in gastric cancer andin lymphatic metastasis. This abnormal expression wouldprovide the tumor cells with a way to avoid immunologicalrecognition. | Yu-QingShen Jian-QiongZhang Feng-QingMiao Jian-MinZhang QinJiang HaoChen Xiang-NianShan WeiXie | 2005 | World Journal of Gastroenterology2005，11，23： | 6 |
| 7 | On hairpin vortex generation from near-wall streamwise vortices显示文摘The generation of a hairpin vortex from near-wall streamwise vortices is studied via the direct numerical simulation(DNS) of the streak transient growth in the minimal channel flow at Re_τ— 400.The streak profile is obtained by conditionally averaging the DNS data of the fully developed turbulent channel flow at the same Reynolds number.The near-wall streamwise vortices are produced by the transient growth of the streak which is initially subjected to the sinuous perturbation of the spanwise velocity.It is shown that the arch head of the hairpin vortex first grows from the downstream end of the stronger streamwise vortex and then connects with the weaker,opposite-signed streamwise vortex in their overlap region,forming a complete individual hairpin structure.The vorticity transport along the vortex lines indicates that the strength increase and the spatial expansion of the arch head are due to the stretching and the turning of the vorticity vector,respectively.The hairpin packets could be further produced from the generated individual hairpin vortex following the parent-offspring process. | Yinshan Wang Weixi Huang Chunxiao Xu | 2015 | Acta Mechanica Sinica2015，31，2： | 5 |
| 8 | The elemental carbon record in Weinan loess section since the last 21 ka显示文摘We studied the records of elemental carbon (EC) of the last 21 ka in the Weinan loess section, Shanxi Province. The variations of EC abundance and δ13CEC value along with depth (or age) were presented. There are four large peaks of EC abundance around the following years: 20.16 ka, 17.76 ka, 11.97 ka and 4.49 ka. Climatic situation was changed rapidly during these periods. The peaks around 11.97 ka and 20.16 ka are particularly sharp, occurring over intervals of tens to hundreds of years, which could represent short-duration intense events. δ13CEc values in the upper 4 m of the Weinan loess section vary between -11.71‰ and -21.34‰, which suggests that the vegetation pattern of the last 21 ka on the Loess Plateau is G4-dominated grasses. | YANG Ying SHEN Chengde YI Weixi SUN Yanmin LIU Dongsheng | 2001 | Chinese Science Bulletin2001，46，18： | 5 |
| 9 | Coherent structures in wall turbulence and mechanism for drag reduction control显示文摘Herein is introduced the mechanism for active control influencing the generation of the near-wall streamwise vortices,which are closely related to the production of high skin friction in wall-bounded turbulent flows.A new opposition control scheme with adjusting control amplitude is proposed and evaluated in turbulent channel flow by direct numerical simulations.The maximum drag reduction rate can be greatly enhanced by the strengthened control.Finally the effectiveness of the control to the coherent structures at high Reynolds numbers is investigated by using a linear transient growth model. | XU ChunXiao DENG BingQing HUANG WeiXi CUI GuiXiang | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，6： | 5 |
| 10 | Carbon isotopic composition and its implications on paleoclimate of the underground ancient forest ecosystem in Sihui,Guangdong显示文摘We present the carbon isotopic composition of the total organic carbon(TOC) and fine roots in the sedimentary profile from the underground ancient forest in Sihui to study the climatic and environmental changes from 4.5 ka BP to 0.6 ka BP.Results show that C3 plant was the main vegetation from 4.5 ka BP to 0.6 ka BP in this region.The ancient forest began to develop in the wetland at around 4 ka BP and disappeared together with the wetland at about 3.0 ka BP,implying that the climate had changed greatly at around 3.0 ka BP.As indicated by the simulation results,the content of atmospheric CO2 increased slightly during 3.5 ka BP and 3.0 ka BP,implying climate warming during that period.The interval of radiocarbon age between 3.0 ka BP and 1.2 ka BP was possibly caused by the strong erosion when the block was lifted in the neotectonic movement.From 1.2 ka BP to 0.6 ka BP,the region remained in terrestrial sedimentary environment,and the surface plant biomass declined gradually.Drought caused by the climate change was the likely cause for the disappearance of the ancient forest.South transition of Intertropical Convergence Zone(ITCZ) was probably the main mechanism for the climate change. | Ping Ding ChengDe Shen Ning Wang WeiXi Yi KeXin Liu XingFang Ding DongPo Fu | 2009 | Science China Earth Sciences2009，52，5： | 4 |
| 11 | Carbon isotopic composition,turnover and origins of soil CO_2 in a monsoon evergreen broadleaf forest in the Dinghushan Biosphere Reservoir,South China显示文摘Carbon isotopic compositions of soil CO2 in rainy season (July) from two natural soil profiles (DHLS & DHS) in the monsoon evergreen broadleaf forest in the Dinghushan Biosphere Reservoir (DBR),South China,are presented.Turnover and origins of soil CO2 are preliminarily discussed in this paper.Results show that the content of soil CO2 varies between 6120 and 18718 ppmv,and increases with increasing depth until 75 cm,and then it declines.In DHLS,soil CO2 δ 13C ranges from -24.71‰ to -24.03‰,showing a significant inverse correlation (R2=0.91) with the soil CO2 content in the same layer.According to a model related to soil CO2 δ 13C,the soil CO2 is mainly derived from the root respiration (>80%) in DHLS.While in DHS,where soil CO2 δ 13C ranges from -25.19‰ to -22.82‰,soil CO2 is primarily originated from the decomposition of organic matter (51%–94%),excluding the surface layer (20 cm,90%).Radiocarbon data suggest that the carbon in soil CO2 is modern carbon in both DHLS and DHS.Differences in 14C ages between the 'oldest' and 'youngest' soil CO2 in DHLS and DHS are 8 months and 14 months,respectively,indicating that soil CO2 in DHLS has a faster turnover rate than that in DHS.The Δ14C values of soil CO2,which range between 100.0‰ and 107.2‰ and between 102.5‰ and 112.1‰ in DHLS and DHS,respectively,are obviously higher than those of current atmospheric CO2 and SOC in the same layer,suggesting that soil CO2 is likely an important reservoir for Bomb-14C in the atmosphere. | DING Ping SHEN ChengDe WANG Ning YI WeiXi DING XingFang FU DongPo LIU KeXin ZHAO Ping | 2010 | Chinese Science Bulletin2010，55，23： | 4 |
| 12 | Synergistic Effects of Chiral Morphology and Reconfiguration in Cattail Leaves显示文摘 | Zilong Zhao Weixi Huang Bingwei Li Kexing Chen Kuifu Chen Hongping Zhao Xiqiao Feng | 2015 | Journal of Bionic Engineering2015，12，4： | 3 |
| 13 | Effect of active control on optimal structures in wall turbulence显示文摘The effect of active control imposed at the wall on optimal structures in wall turbulence is studied by using a linear transient growth model.When the detection plane of the control is located in the buffer layer,the influence of the control on the transient growth of large scale motion becomes negligible as Reynolds number increases.However,if the control signal is detected at the plane located in the logarithm region,the transient growth at large scale can be greatly suppressed.New peak values of transient growth resulting from the strong blowing and suction on the wall exist.The study indicates that a proper selection of control imposed on the wall can suppress the large scale motion in the logarithmic region. | DENG BingQing XU ChunXiao HUANG WeiXi CUI GuiXiang | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，2： | 3 |
| 14 | Profiles of phenolics,carotenoids and antioxidative capacities of thermal processed white,yellow,orange and purple sweet potatoes grown in Guilin,China显示文摘The objectives of this study were to systematically compare phenolic profiles,carotenoids profiles and antioxidant activities of raw and cooked sweet potatoes of five varieties(white,yellow,orange,light purple and deep purple).Total phenolic content(TPC),monomeric anthocyanin content(MAC),total carotenoid content(TCC),2-diohenyl-1-picryhydrazyl(DPPH)free radical scavenging capacities and ferric reducing antioxidant powder(FRAP)were determined by colorimetric methods.Higher anthocyanin contents and antioxidant capacities were detected in purple sweet potato species,while higher carotenoid contents were detected in yellow and orange sweet potato.All cooked sweet potato exhibited significantly(p<0.05)lower TPC,MAC,TCC,DPPH and FRAP values as compared to the respective raw samples.Under the same cooking time,steaming was good for the retention of TPC,roasting was good for keeping anthocyanins,and boiling was beneficial to preserve carotenoids. | Yayuan Tang Weixi Cai Baojun Xu | 2015 | Food Science and Human Wellness2015，4，3： | 3 |
| 15 | A composite model for complex building street configuration in a large eddy simulation of local urban atmospheric environment显示文摘The wind field and pollutant dispersion are predicted numerically in a local urban area with crowded buildings and heavy traffic.A domain decomposition method is used in the large eddy simulation,in which the urban area is decomposed into a central area,where pollution is the major concern,and a surrounding region,where the pollutant distribution is not important.The composite model is proposed for the complex building-street layout.The fine grid mesh is used to resolve the buildings in the central area while the buildings are treated as roughness elements in the surrounding region where the coarse grids are used.The proposed numerical method is applied to simulate the wind field and pollutant dispersion from vehicle exhaust in the Rua Do Campo area of Macao.The results show that the composite model is an appropriate method for predicting wind field and pollutant dispersion in the crowded building area. | LIU YuShi CUI GuiXiang WANG ZhiShi HUANG WeiXi XU ChunXiao ZHANG ZhaoShun | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，4： | 3 |
| 16 | Assessing bacterial communities in the rhizosphere of 8-year-old genetically modified poplar(Populus spp.)显示文摘Microbe communities in rhizosphere ecosystems are important for plant health but there is limited knowledge of them in the rhizospheres of genetically modified(GM) plants, especial for tree species. We used the amplitude sequencing method to analyze the V4 regions of the 16 S r RNA gene to identify changes in bacterial diversity and community structure in two GM lines(D520 and D521), one non-genetically modified(nonGM) line and in uncultivated soil. After chimera filtering,468.133 sequences in the domain Bacteria remained. There were ten dominant taxonomic groups(with [1 % of all sequences) across the samples. 241 of 551 genera(representing a ratio of 97.33 %) were common to all samples.A Venn diagram showed that 1.926 operational taxonomic units(OTUs) were shared by all samples. We found a specific change, a reduction in Chloroflexi, in the microorganisms in the rhizosphere soil planted with poplars. Taken together, the results showed few statistical differences in the bacterial diversity and community structure between the GM line and non-GM line, this suggests that there was no or very limited impact of this genetic modification on the bacterial communities in the rhizosphere. | Wenxu Zhu Yanguang Chu Changjun Ding Qinjun Huang Bingyu Zhang Weixi Zhang Xiaohua Su | 2016 | Journal of Forestry Research2016，27，4： | 2 |
| 17 | Toward calibration-free Mach-Zehnder switches for next-generation silicon photonics显示文摘Silicon photonic Mach–Zehnder switches(MZSs)have been extensively investigated as a promising candidate for optical systems.However,conventional 2×2 MZSs are usually prone to the size variations of the arm waveguides due to imperfect fabrication,resulting in considerable random phase imbalance between the two arms,thereby imposing significant challenges for further developing next-generation N×N MZSs.Here we propose a novel design toward calibration-free 2×2 and N×N MZSs,employing optimally widened arm waveguides,enabled by novel compact tapered Euler S-bends with incorporated mode filters.With standard 180 nm CMOS foundry processes,more than thirty 2×2 MZSs and one 4×4 Benes MZS with the new design are fabricated and characterized.Compared with their conventional counterparts with 0.45-μm-wide arm waveguides,the present 2×2 MZSs exhibit significant reduction in the random phase imbalance.The measured extinction ratios of the present 2×2 and 4×4 MZSs operating in the all-cross state are 27-49 dB and∼20dB across the wavelength range of∼60nm,respectively,even without any calibrations.This work paves the way toward calibration-free large-scale N×N MZSs for next-generation silicon photonics. | Lijia Song Tangnan Chen Weixi Liu Hongxuan Liu Yingying Peng Zejie Yu Huan Li Yaocheng Shi Daoxin Dai | 2022 | Photonics Research2022，10，3： | 2 |
| 18 | A biomass burning record from the Lingtai Loess Section during the last 370 ka and implication for climate and environment显示文摘The history of natural fire and its rela- tionship with climate and vegetation are revealed from the content of elemental carbon and associated pollen data and paleoclimatic substitutive indicators for the loess of Lingtai Section in the last 370 ka BP. The study indicates that intense episodes of vegeta- tion fires occurred during the interim especially when the climate was changing from wet to drought. The average content of elemental carbon in the intergla- ciers is higher than that in the glaciers, which coin- cides with the biomass change locally (or globally). The content of elemental carbon increases in the stage around 130 ka BP, indicating that the vegeta- tion and climate pattern have changed, which may contribute to the variation of CO2. As a whole, the content of elemental carbon increasing with the time reflects the increasing aridity trend to some degree. In addition, the occurrence of the maximum peak and the highest average content of elemental carbon in the Holocene reflects the occurrence of a rapid cli- mate event in 5900 a BP and more frequent fires caused by anthropic activities. | ZHOU Bin SHEN Chengde SUN Yanmin YANG Ying YI Weixi | 2006 | Chinese Science Bulletin2006，51，17： | 2 |
| 19 | The synchronization of spontaneous BOLD activity predicts extraversion and neuroticism显示文摘 | Luqing Wei Xujun Duan Yang Yang Wei Liao Qing Gao Ju-rong Ding Zhiqiang Zhang Weixi Zeng Yuan Li Guangming Lu Huafu Chen | 2011 | Brain Research2011，，： | 2 |
| 20 | Modified transmission line model to investigate non-Ohmic contact behavior and its application on GaN显示文摘 | Yanjie Wang Weixi Chen Qiyuan Wei | 2007 | Journal of Applied Physics2007，101，8： | 1 |
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