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33篇 您的检索式:作者名="Quan Man"
    题名 作者 年代 出处 被引量
1Diffusion tensor imaging detects Wallerian degeneration of the corticospinal tract early after cerebral infarction显示文摘To investigate the feasibility and time window of early detection of Wallerian degeneration in the corticospinal tract after middle cerebral artery infarction,23 patients were assessed using magnetic resonance diffusion tensor imaging at 3.0T within 14 days after the infarction.The fractional anisotropy values of the affected corticospinal tract began to decrease at 3 days after onset and decreased in all cases at 7 days.The diffusion coefficient remained unchanged.Experimental findings indicate that diffusion tensor imaging can detect the changes associated with Wallerian degeneration of the corticospinal tract as early as 3 days after cerebral infarction.Ruiman Xie Min Fang Linjiang Zhou Shanghua Fan Jianying Liu Hongbo Quan Man Luo Dongying Qiu 2012Neural Regeneration Research2012,7,12:20
2Effects of warming and clipping on plant and soil properties of an alpine meadow in the Qinghai-Tibetan Plateau, China显示文摘Climate warming and livestock grazing are known to have great influences on alpine ecosystems like those of the Qinghai-Tibetan Plateau(QTP) in China. However, it is lacking of studies on the effects of warming and grazing on plant and soil properties in these alpine ecosystems. In this study, we reported the related research from manipulative experiment in 2010–2012 in the QTP. The aim of this study was to investigate the individual and combined effects of warming and clipping on plant and soil properties in the alpine meadow ecosystem. Infrared radiators were used to simulate climate warming starting in July 2010, while clipping was performed once in October 2011 to simulate the local livestock grazing. The experiment was designed as a randomized block consisting of five replications and four treatments: control(CK), warming(W), clipping(C) and warming+clipping combination(WC). The plant and soil properties were investigated in the growing season of the alpine meadow in 2012. The results showed that W and WC treatments significantly decreased relative humidity at 20-cm height above ground as well as significantly increases air temperature at the same height, surface temperature, and soil temperature at the depth of 0–30 cm. However, the C treatment did not significantly decrease soil moisture and soil temperature at the depth of 0–60 cm. Relative to CK, vegetation height and species number increased significantly in W and WC treatment, respectively, while vegetation aboveground biomass decreased significantly in C treatment in the early growing season. However, vegetation cover, species diversity, belowground biomass and soil properties at the depth of 0–30 cm did not differ significantly in W, C and WC treatments. Soil moisture increased at the depth of 40–100 cm in W and WC treatments, while belowground biomass, soil activated carbon, organic carbon and total nitrogen increased in the 30–50 cm soil layer in W, C and WC treatments. Although the initial responses of plant and soil properties to experimental warming and clipping were slow and weak, the drought induced by the downward shift of soil moisture in the upper soil layers may induce plant belowground biomass to transfer to the deeper soil layers. This movement would modify the distributions of soil activated carbon, organic carbon and total nitrogen. However, long-term data collection is needed to further explain this interesting phenomenon.Man Hou XU Fei PENG Quan Gang YOU Jian GUO Xia Fei TIAN Min LIU Xian XUE 2015Journal of Arid Land2015,7,2:14
3Formation control and collision avoidance for multi-UAV systems based on Voronoi partition显示文摘This paper deals with the formation control problem of multiple unmanned aerial vehicles(UAVs) with collision avoidance. A distributed formation control and collision avoidance method is proposed based on Voronoi partition and conventional artificial potential field. The collision avoidance is achieved by partitioning the whole space into non-overlapping regions based on Voronoi partition theory, which is taken as the task region to confine the movement of each UAV. The general motion control law is designed based on the conventional artificial potential field. As this often leads to local optimum when two UAVs are going to collide with each other and they may stay still where the repulsive force is adversely equivalent to the attractive force. To address this problem,the destination switch scheme is further proposed to let UAVs switch destinations when they reach the local equilibrium. Finally,the effectiveness of proposed formation control algorithm is validated by simulations and experiments.HU JinWen WANG Man ZHAO ChunHui PAN Quan DU Chang 2020Science China(Technological Sciences)2020,63,1:12
4Environment-Stable CoxNiy Encapsulation in Stacked Porous Carbon Nanosheets for Enhanced Microwave Absorption显示文摘Magnetic/dielectric@porous carbon composites,derived from metal–organic frameworks(MOFs)with adjustable composition ratio,have attracted wide attention due to their unique magnetoelectric properties.In addition,MOFs-derived porous carbon-based materials can meet the needs of lightweight feature.This paper reports a simple process for synthesizing stacked CoxNiy@C nanosheets derived from CoxNiy-MOFs nanosheets with multiple interfaces,which is good to the microwave response.The CoxNiy@C with controllable composition can be obtained by adjusting the ratio of Co^2+ and Ni^2+.It is supposed that the increased Co content is benefit to the dielectric and magnetic loss.Additionally,the bandwidth of CoNi@C nanosheets can take up almost the whole Ku band.Moreover,this composite has better environmental stability in air,which characteristic provides a sustainable potential for the practical application.Xiaohui Liang Zengming Man Bin Quan Jing Zheng Weihua Gu Zhu Zhang Guangbin Ji 2020Nano-Micro Letters2020,12,8:11
5Dental implant treatment for renal failure patients on dialysis:a clinical guideline显示文摘Chronic kidney disease(CKD) is a worldwide public health problem that is growing in prevalence and is associated with severe complications. During the progression of the disease, a majority of CKD patients suffer oral complications. Dental implants are currently the most reliable and successful treatment for missing teeth. However, due to complications of CKD such as infections,bone lesions, bleeding risks, and altered drug metabolism, dental implant treatment for renal failure patients on dialysis is more challenging. In this review, we have summarized the characteristics of CKD and previous publications regarding dental treatments for renal failure patients. In addition, we discuss our recent research results and clinical experience in order to provide dental implant practitioners with a clinical guideline for dental implant treatment for renal failure patients undergoing hemodialysis.Yuan,Quan Xiong,Qiu-Chan Gupta,Megha Maria Lopez-Pintor,Rosa Chen,Xiao-Lei Seriwatanachai,Dutmanee Densmore,Michael Man,Yi Gong,Ping 2017International Journal of Oral Science2017,9,3:9
6IL-17 sustains the plasma cell response via p38-mediated Bcl-xL RNA stability in lupus pathogenesis显示文摘Recent studies have demonstrated a central role for plasma cells in the development of autoimmune diseases,such as systemic lupus erythematosus(SLE).Currently,both the phenotypic features and functional regulation of autoreactive plasma cells during SLE pathogenesis remain largely unclear.In this study,we first found that a major subset of IL-17 receptor-expressing plasma cells potently produced anti-dsDNA IgG upon IL-17A(IL-17)stimulation in SLE patients and lupus mice.Using a humanized lupus mouse model,we showed that the transfer of Th17 cell-depleted PBMCs from lupus patients resulted in a significantly reduced plasma cell response and attenuated renal damage in recipient mice compared to the transfer of total SLE PBMCs.Moreover,long-term BrdU incorporation in lupus mice detected highly enriched long-lived BrdU+subsets among IL-17 receptor-expressing plasma cells.Lupus mice deficient in IL-17 or IL-17 receptor C(IL-17RC)exhibited a diminished plasma cell response and reduced autoantibody production with attenuated renal damage,while the adoptive transfer of Th17 cells triggered the plasma cell response and renal damage in IL-17-deficient lupus mice.In reconstituted chimeric mice,IL-17RC deficiency resulted in severely impaired plasma cell generation but showed no obvious effect on germinal center B cells.Further mechanistic studies revealed that IL-17 significantly promoted plasma cell survival via p38-mediated Bcl-xL transcript stabilization.Together,our findings identified a novel function of IL-17 in enhancing plasma cell survival for autoantibody production in lupus pathogenesis,which may provide new therapeutic strategies for the treatment of SLE.Kongyang Ma Wenhan Du Fan Xiao Man Han Enyu Huang Na Peng Yuan Tang Chong Deng Lixiong Liu Yulan Chen Jingjing Li Shiwen Yuan Qin Huang Xiaoping Hong Dajun Hu Xiaoyan Cai Quan Jiang Dongzhou Liu Liwei Lu 2021Cellular & Molecular Immunology2021,18,7:6
7Evolution of dielectric loss-dominated electromagnetic patterns in magnetic absorbers for enhanced microwave absorption performances显示文摘As the growing criterion of electromagnetic wave (EMW) absorption materials, micro/nano-scale magnetic materials are drawing more and more attention for their unique features compared to bulky absorbers. Generally, the complex permeability of micro/nano-scale magnetic absorbers varies in a relatively narrow range, whatever for the storage of magnetic energy or the dissipation of magnetic energy. If so, how the small variation of permeability affects the ultimate performances is still unclear. Here, a strategy of electromagnetic parameters regulation for the magnetic materials is applied to understand the loss contribution in micro/nanoscale magnetic absorbers. After analyzing the evolution of electromagnetic maps of ten ferrosoferric oxide samples, it can be found that the dissipation contribution of permeability for magnetic materials is weaker than that of permittivity, in spite of its significant role in determining the impedance matching characteristics. In summary, this work systematically explores the loss contribution in micro/nano-magnetic absorbers for the first time, which is of great importance in designing and optimizing the microwave absorption properties of magnetic absorbers.Xiaogu Huang Man Qiao Xiaochi Lu Yafei Li Yabin Ma Bo Kang Bin Quan Guangbin Ji 2021Nano Research2021,14,11:4
8New insights into follicular helper T cell response and regulation in autoimmune pathogenesis显示文摘Follicular helper T (Tfh) cells play a key role in driving B cell activation and differentiation during germinal center reactions in immune responses and autoimmune development, and these cells are characterized by high expression of CXCR5, PD1, ICOS, IL-21 and BCL6. Increasing evidence indicates that the functional dysregulation of Tfh cells contributes to the pathogenesis of autoimmune diseases, including primary Sjögren’s syndrome (pSS), which is a common autoimmune disease characterized by lymphocytic infiltration and tissue inflammation in salivary glands (SGs) and lacrimal glands that leads to dry mouth and dry eyes.1 Here, we provide a brief commentary on recent advances in understanding the Tfh cell response with a focus on new insights into Tfh cell regulation and therapeutic implications in autoimmune diseases.Fan Xiao Man Han Ke Rui Xiangyan Ai Jie Tian Wen Zhang Futao Zhao Yan Zhao Quan Jiang Liwei Lu 2021Cellular & Molecular Immunology2021,18,6:3
9Synthesis of Isoquinoline-1, 3-Dicarboxylic Acid显示文摘Two new compounds, isoquinoline-1, 3-dicarboxyaldehyde and (IDA) were synthesizedvia 6 or 7 steps starting from benzaldehyde, or prepared via 4 steps starting from allylbenzene.Xian Hong YINI Man Ya YANG Hua Hong SHI Lian Quan GU(Chemistry Department, Zhongshan University. Guangzhou 510275)(Chemistry Department, Guangxin University for Nationalities, Nanning 530006) 1999Chinese Chemical Letters1999,10,11:2
10Damage effect analysis and experiment for electronic equipment in impact vibration environment显示文摘This paper analyzes the electronic equipment's effect factors such as structure characteristics and environment.The radar equipment is taken as an experimental subject.The damage laws of electro-products in vibration environment are analyzed.The experiment shows that the damage of electro-products in vibration environment has relations with both the type and amplitude of vibration and their structure.Shi Quan Tian Juan Man Qiang 2009Journal of Systems Engineering and Electronics2009,20,6:2
11Low conversion-loss fourth subharmonic mixers incorporating CMRC for millimeter-wave applications 显示文摘Xue Quan Shum Kam Man Chan Chi Hou 2003IEEE Transactions on Microwave Theory and Techniques2003,51,5:1
12Acute impairment of relaxation by low levels of testosterone in porcine coronary ar- teries 显示文摘Teoh H Quan A Man RY 2000Cardiovasc Res2000,45,4:1
13Identification of novel mutations in the ryanodine-receptor gene ( RyR1 ) in malignant hyperthermia : genotype-phenotype correlation 显示文摘Manning BM Quane KA Ording H 1998Am J Hum Genet1998,62,:1
14Kalman Filter Estimation of Lithium Battery SOC Based on Model Capacity Updating显示文摘High-precision estimation of lithium battery SOC can effectively optimize vehicle energy management,improve lithium battery safety protection,extend lithium battery cycle life,and reduce new energy vehicle costs.Based on the forgetting factor recursive least square method(FFRLS),Thevenin equivalent circuit model and Singular Value Decomposition-Unscented Kalman Filter(SVD-UKF),the SVD-UKF combined lithium battery SOC estimation algorithm with model capacity update is proposed,aiming at further improving the SOC estimation accuracy of lithium battery.The parameter identification of Thevenin model is studied by using the forgetting factor recursive least square method.To overcoming the shortcomings of Kalman filter linearization error and non-positive definite covariance matrix,the singular value decomposition unscented Kalman filter algorithm is proposed.It is worth mentioning that in order to consider the impact of battery available capacity attenuation on the estimation of lithium battery SOC,the model capacity update algorithm is used to optimize the model parameters and state joint estimation algorithm based on FFRLS&SVD-UKF.Verified by simulation and lithium battery test,the results show that the SVD-UKF algorithm based on model capacity update can accurately estimate the SOC of lithium battery in real time with the available capacity of lithium battery continuous attenuation.The purpose of improving the accuracy of SOC estimation of lithium batteries is achieved.Min Deng Quan Min Ge Yang Man Yu 2022Energy Engineering2022,119,2:1
15Synthesis of 3 or 4-Substituted Pyridine-2, 6-Dicarboxylic Acid显示文摘Various 4-alkoxypyridine-2, 6-dicarboxylic acids were synthesized starting from 2,6- lutidine.Through aldol condensation and Michael addition, various 4-arylpyridine-2, 6-dicarboxylic acids were synthesized starting from aromatic aldehydes and 2-acetylfuran.Xian Hong YIN Man Ya YANG Hua Hong SHI Lian Quan GU(Chemistry Department, Zhongshan University. Guangzhou 510275)(Chemistry Department, Guangxin University for Nationalities, Nanning 530006) 1999Chinese Chemical Letters1999,10,11:1
16Identification of novel mutations in the ryanodine-receptor gene(RyR1 )in malignant hyperthermia:geno type-phenotype correlation 显示文摘Manning Dm Quane KA Ording H 1998Am J Hum Genet1998,62,:1
17Acute exposure to a lowlevel of testosterone impairs relaxation in porcine coronary arteries显示文摘Quan A Teoh H Man RY 1999Clin Exp Pharmacol Physiol1999,26,:1
18Cloning of Asian yellow goat (C. hircus) by somatic cell nuclear transfer: Telophase enucleation combined with whole cell intracytoplasmic injection显示文摘Da‐YuanChen Man‐XiJiang Zhen‐JunZhao Hai‐LongWang Qing‐YuanSun Li‐ShengZhang Rui‐ChangLi Heng‐HuaCao Quan‐JunZhang Dong‐LianMa 2006Mol Reprod Dev2006,,1:1
19Highly doped NaErF_(4)-based nanocrystals for multi-tasking application显示文摘How to engineer single nanocrystal to achieve multiple functions is still a huge challenge.In this work,a novel highly doped rare earth nanocrystal NaErF_(4)@NaGdF_(4)@NaDyF_(4)(Er@Gd@Dy)was designed and fabricated,which exhibits various performances by itself,including the longitudinal(T1)and transverse relaxation time(T2)double-mode magnetic resonance imaging(MRI),upconversion luminescence and down-shifting luminescence.Upon irradiation of 808 nm near-infrared(NIR)light,the upconverted red light can indirectly activate the photo sensitizer Ce6 conjugated on the surface of nanocrystals for photodynamic therapy(PDT).In vivo experiments demonstrate that the nano materials can eradicate notably primary tumors without obvious systematic toxicity.In addition,the longitudinal and transverse relaxation rates of Er@Gd@Dy are 24.83 and 319.86(mmol/L)^(-1)/s,respectively,which are superior to those of the nanocrystals reported previously.Simultaneously,the nanocrystals have the ability to generate NIR-Ⅱlight located at 1530 nm,favorable in bioimaging in deeper tissues.As a consequence,this new nanoplatform will advance the improvement of multimodal imaging guided tumor diagnosis and treatment.Yulin Xie Qing Chen Man Wang Weilin Chen Zewei Quan Chunxia Li 2021Journal of Rare Earths2021,39,12:1
20Low conversion-loss fourth subharmonic mixers incorporating CMRC for millimeter-wave applications 显示文摘Quan Xue Kam Man Shum Chi Hou Chan 2003Microwave Theory and Techniques IEEE Transactions2003,51,5:1
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