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| 1 | The Development and Standardization of Testing Methods for Genetically Modified Organisms and their Derived Products显示文摘轻拍的张(相应作者) | Dabing Zhang Jinchao Guo | 2011 | Journal of Integrative Plant Biology2011，53，7： | 30 |
| 2 | UNIFORMLY-STABLE FINITE ELEMENT METHODS FOR DARCY-STOKES-BRINKMAN MODELS显示文摘在这篇论文,我们认为 2D 和 3D Darcy 司烧连接问题。这些方程与 Brinkman 模型有关震颤两个 Darcy 是法律并且司烧在 PDE,但是与强烈不连续的粘性系数和 zeroth 顺序的一种单个形式的方程称为系数。我们在场构造一致地稳定的有限元素近似的三个不同方法。开始的二个方法基于 Darcy-Stokes-Brinkman 方程的原来的弱明确的表达。在我们考虑存在的第一个方法司烧元素。我们证明一个马厩司烧如果并且仅当分离地没有分叉的速度暗示几乎到处没有分叉的,元素关于系数和 Darcy-Stokes-Brinkman 方程的 jumps 也是一致地稳定的。在第二个方法,我们由修改遵守元素的一些著名 H (div ) 构造一致地稳定的元素。我们以一个统一方法给一些新 2D 和 3D 元素。在最后方法,我们与一个稳定术语修改 Darcy-Stokes-Brinkman 方程的原来的弱明确的表达。我们证明所有传统的马厩司烧元素在这新明确的表达下面关于系数和他们的 jumps 是一致地稳定的。 | Xiaoping Xie Jinchao Xu Guangri Xue | 2008 | Journal of Computational Mathematics2008，26，3： | 19 |
| 3 | LOCAL AND PARALLEL FINITE ELEMENT ALGORITHMS FOR THE NAVIER-STOKES PROBLEM显示文摘基于二格子的 discretizations,在这篇论文,某新本地人和平行有限元素算法为静止不可压缩的 Navier-Stokesproblem 被建议并且分析。这些算法被为 Navier-Stokesproblem 的一个答案,低频率部件能被一个相对粗糙的格子接近很好,高频率部件能被某本地、平行的过程在一个好格子上计算的观察激发。为分析的一个主要技术工具是也在一般形状常规的格子上为有限元素答案在这篇论文被获得的一些本地先验的错误估计。 | Yinnian He Jinchao Xu Aihui Zhou | 2006 | Journal of Computational Mathematics2006，24，3： | 16 |
| 4 | Icariin suppresses bone resorption activity of rabbit osteoclasts in vitro显示文摘The effect of icariin on the bone resorption activity of rabbit osteoclasts is assessed in vitro. Osteoclasts were isolated from Japanese white rabbits and cultured on plates with a sterilized bone slice in each well. After treatment with icariin at various concentrations, the bone resorption activity of osteoclasts was evaluated by examining pit areas, superoxide anion (·O2-) generation, size and number of actin rings and intracellular calcium concentration [Ca2+]i. As revealed by these data, icariin elicited continuous decline of [Ca2+]i, making actin ring constricted and ·O2- generation decreased. These events resulted in smaller and fewer pits which indicate suppressed bone resorption activity of rabbit osteoclasts by icariin. | HUANG Jian ZHANG JinChao ZHANG TianLan WANG Kui | 2007 | Chinese Science Bulletin2007，52，7： | 15 |
| 5 | SOME n-RECTANGLE NONCONFORMING ELEMENTS FOR FOURTH ORDER ELLIPTIC EQUATIONS显示文摘在这篇论文,非遵守元素的三 n 矩形与 n ≥
被建议3。他们分别地是在到任何更高的尺寸的二种空间尺寸的著名莫利元素, Adini 元素和 Bogner-Fox-Schmit 元素的延期。这些元素都被证明为在 n 尺寸的一个模型双性人泛音方程会聚。数学题目分类:65N30。 | Ming Wang Zhong-Ci Shi Jinchao Xu | 2007 | Journal of Computational Mathematics2007，25，4： | 15 |
| 6 | Correlation between lower gastrointestinal tract symptoms and quality of life in patients with stable chronic obstructive pulmonary disease显示文摘OBJECTIVE:To explore correlations between the symptoms of constipation and abdominal distention and severity of chronic obstructive pulmonary disease(COPD)in patients with stable disease.METHODS:We studied 191 patients with stable COPD(according to defined criteria)in this cross-sectional study from four three-level class A Chinese medicine hospitals in China.We built an Epidata 3.0 database and performed statistical analysis with SPSS,version 17.0.We analyzed correlations between the frequency of lower gastrointestinal tract symptoms(constipation and abdominal distention)and scores for major pulmonary symptoms(cough,sputum and wheezing)based on the St.George's Respiratory Questionnaire(SGRQ),6-minute walking distance(6MWD)and frequency of acute exacerbations of COPD(AECOPD).RESULTS:In addition to their pulmonary symptoms,39.79%and 40.31%of study patients withstable COPD reported constipation and abdominal distention,respectively.Scores for major pulmonary symptoms(cough,sputum and wheezing),AECOPD and SGRQ values in patients with constipation and abdominal distention were significantly greater,and the 6MWD markedly shorter,than in those without them.According to Pearson's correlation analysis,there were strong correlations between these lower gastrointestinal tract symptoms and scores for pulmonary symptoms,SGRQ,6MWD and AECOPD.CONCLUSION:Lower gastrointestinal tract symptoms such as constipation and abdominal distention can adversely affect pulmonary symptoms,frequency of acute exacerbations and quality of life in patients with stable COPD. | Yan Sun Fengjie Zheng Yuhang Li Ruohan Wu Yuchao Liu Miao Liu Jinchao Zhang Kuo Gao | 2013 | Journal of Traditional Chinese Medicine2013，33，5： | 10 |
| 7 | Local and Parallel Finite Element Algorithms for Eigenvalue Problems显示文摘Abstract Some new local and parallel finite element algorithms are proposed and analyzed in this paper foreigenvalue problems.With these algorithms, the solution of an eigenvalue problem on a fine grid is reduced tothe solution of an eigenvalue problem on a relatively coarse grid together with solutions of some linear algebraicsystems on fine grid by using some local and parallel procedure.A theoretical tool for analyzing these algorithmsis some local error estimate that is also obtained in this paper for finite element approximations of eigenvectorson general shape-regular grids. | Jinchao Xu | 2002 | Acta Mathematicae Applicatae Sinica2002，18，2： | 8 |
| 8 | Effects of lanthanum and gadolinium on proliferation and differentiation of primary osteoblasts显示文摘增长,区别和老鼠 calvarial os-teoblast-like 房间的 adipogenic transdifferentiation 上的 La 3+ 和 Gd 3+ 的效果(抢劫房间) 被 MTT 方法评估,测量碱的磷酸酶(高山) 和油红 O 测量的活动。两个都, La, 3+ 和 Gd 3+ 禁止了增长根本抢劫房间集中(110 -5, 110 -6, 110 -7, 110 -8, 110 -9 摩尔 L -1, 。在 110 -5 摩尔的集中的 La 3+ , L -1 显著地增加了碱的磷酸酶活动抢劫房间直到 3 褶层,(P<0.01 ) 。然而,效果逆行在另外的集中禁止。Gd 3+ 在碱的磷酸酶活动起了一个否定作用。La 3+ 禁止了 adipogenic transdifferentiation 根本抢劫房间以一个剂量依赖者方法的集中。然而, Gd 3+ 支持了 adipogenic transdifferentiation 在 110 -8 和 110 -9 摩尔 L -1 抢劫房间。这些调查结果建议增长,区别和 adipogenic transdifferentiation 上的稀土元素元素的效果抢劫细胞依赖于他们的集中和种。 | Zhang Dawei Zhang Jinchao Chen Yao Yang Mengsu Yao Xinsheng | 2007 | Progress in Natural Science:Materials International2007，17，5： | 6 |
| 9 | Effect of Dy^(3+) on osteogenic and adipogenic differentiation of mouse primary bone marrow stromal cells and adipocytic trans-differentiation of mouse primary osteoblasts显示文摘A series of experimental methods including 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bro-mide (MTT) test,alkaline phosphatase (ALP) activity measurement,mineralized function,Oil Red O stain and measurement were employed to assess the effect of Dy3+ on the osteogenic and adipogenic differentiation of mouse primary bone marrow stromal cells (BMSCs) and the adipogenic trans-differ-entiation of mouse primary osteoblasts (OBs). The results showed that Dy3+ had no effect on BMSC proliferation at concentrations of 1×10-8 and 1×10-5 mol/L,but inhibited BMSC proliferation at other concentrations. Dy3+ had no effect on OB proliferation at concentrations of 1×10-10 and 1×10-9 mol/L,but inhibited OB proliferation at other concentrations. Dy3+ had no effect on the osteogenic differentia-tion of BMSCs at concentrations of 1×10-9 and 1×10-7 mol/L,and promoted osteogenic differentiation of BMSCs at other concentrations at the 7th day. The osteogenic differentiation of BMSCs was inhibited by Dy3+ at concentration of 1×10-5 mol/L at the 14th day,but promoted osteogenic differentiation of BMSCs at concentrations of 1×10-9,1×10-8,1×10-7 and 1×10-6 mol/L with the maximal effect at concen-tration of 10-6 mol/L. Dy3+ promoted mineralized function of BMSCs at any concentration. Dy3+ had no effect on adipogenic differentiation of BMSCs at concentration of 1×10-7 mol/L,but inhibited adipogenic differentiation of BMSCs at other concentrations. Dy3+ inhibited adipocytic trans-differentiation of OBs at any concentration,suggesting that Dy3+ had protective effect on bone and the protective effect on bone may be mediated by modulating differentiation of BMSCs away from the adipocyte and inhibiting adipocytic trans-differentiation of OBs which may promote differentiation and mineralization of OBs. These results may be valuable for better understanding the mechanism of the effect of Dy3+ on pathogenesis of osteoporosis. | ZHANG JinChao LIU DanDan SUN Jing ZHANG DaWei SHEN ShiGang YANG MengSu | 2009 | Chinese Science Bulletin2009，54，1： | 6 |
| 10 | Effects of genistein, daidzein and glycitein on the osteogenic and adipogenic differentiation of bone marrow stromal cells and on the adipogenic trans-differentiation of osteoblasts显示文摘The 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT), alkaline phosphatase (ALP) activity and oil red O assays were used to examine the effects of genistein, daidzein and glycitein on the osteogenic and adipogenic differentiation of primary mouse bone marrow stromal cells (MSCs) and the adipogenic trans-differentiation of primary mouse osteoblasts. The results indicated that daidzein, genistein and glycitein at concentrations from 1×10 -8 mol/L to 1×10 -5 mol/L promoted the proliferation of MSCs and osteoblasts; genistein, daidzein and glycitein promoted osteogenic differentiation and inhibited adipogenic differentiation of MSCs, and inhibited adipocytic transdifferentiation of osteoblasts at appropriate concentrations as 17β-estradiol. It suggests that genistein, daidzein and glycitein regulate a dual differentiational process of MSCs into the osteogenic and adipogenic lineages, and trans-differentiational process of primary osteoblasts into the adipocyte lineages, causing a lineage shift toward osteoblast. Protective effects of them on bone may be mediated by a reversal of adipogenesis which may promote the proliferation, differentiation and mineralization of osteoblasts, and make adipocytes secrete less cytokines which may promote osteoclast formation and activation. In addition, the results also indicated that genistein, daidzein and glycitein may be helpful in preventing the development of steroid induced osteonecrosis. | LI Xianghui ZHANG Jinchao SUI Senfang YANG Mengsu | 2005 | Progress in Natural Science:Materials International2005，15，11： | 5 |
| 11 | A unified study of continuous and discontinuous Galerkin methods显示文摘A unified study is presented in this paper for the design and analysis of different finite element methods(FEMs), including conforming and nonconforming FEMs, mixed FEMs, hybrid FEMs, discontinuous Galerkin(DG) methods, hybrid discontinuous Galerkin(HDG) methods and weak Galerkin(WG) methods.Both HDG and WG are shown to admit inf-sup conditions that hold uniformly with respect to both mesh and penalization parameters. In addition, by taking the limit of the stabilization parameters, a WG method is shown to converge to a mixed method whereas an HDG method is shown to converge to a primal method. Furthermore,a special class of DG methods, known as the mixed DG methods, is presented to fill a gap revealed in the unified framework. | Qingguo Hong Fei Wang Shuonan Wu Jinchao Xu | 2019 | Science China Mathematics2019，62，1： | 5 |
| 12 | New mixed finite elements for plane elasticity and Stokes equations显示文摘We consider mixed finite elements for the plane elasticity system and the Stokes equation. For the unmodified Hellinger-Reissner formulation of elasticity in which the stress and displacement fields are the primary unknowns, we derive two new nonconforming mixed finite elements of triangle type. Both elements use piecewise rigid motions to approximate the displacement and piecewise polynomial functions to approximate the stress, where no vertex degrees of freedom are involved. The two stress finite element spaces consist respectively of piecewise quadratic polynomials and piecewise cubic polynomials such that the divergence of each space restricted to a single simplex is contained in the corresponding displacement approximation space. We derive stability and optimal order approximation for the elements. We also give some numerical results to verify the theoretical results. For the Stokes equation, introducing the symmetric part of the gradient tensor of the velocity as a stress variable, we present a stress-velocity-pressure field Stokes system. We use some plane elasticity mixed finite elements, including the two elements we proposed, to approximate the stress and velocity fields, and use continuous piecewise polynomial functions to approximate the pressure with the gradient of the pressure approximation being in the corresponding velocity finite element spaces. We derive stability and convergence for these methods. | XIE XiaoPing XU JinChao | 2011 | Science China Mathematics2011，54，7： | 4 |
| 13 | Application of auxiliary space preconditioning in field-scale reservoir simulation显示文摘We study a class of preconditioners to solve large-scale linear systems arising from fully implicit reservoir simulation.These methods are discussed in the framework of the auxiliary space preconditioning method for generality.Unlike in the case of classical algebraic preconditioning methods,we take several analytical and physical considerations into account.In addition,we choose appropriate auxiliary problems to design the robust solvers herein.More importantly,our methods are user-friendly and general enough to be easily ported to existing petroleum reservoir simulators.We test the efciency and robustness of the proposed method by applying them to a couple of benchmark problems and real-world reservoir problems.The numerical results show that our methods are both efcient and robust for large reservoir models. | HU XiaoZhe XU JinChao ZHANG ChenSong | 2013 | Science China Mathematics2013，56，12： | 4 |
| 14 | Salt-Gathering and Potassium Formation of Potassium-Rich Brine during the Triassic in the Sichuan Basin, China显示文摘Potassium-rich brine in the Sichuan Basin has been much studied in recent years, but few studies have focused on the distribution and migration of salt basin and the differences of potassium formation mechanisms. This work examined the salt-gathering and potassium formation of potassiumrich brine during the Triassic in the Sichuan Basin using lithofacies palaeogeographic depiction and geochemical analyses.(1) The favorable sedimentary facies controlling the formation of potassium-rich brine during the Triassic in the Sichuan Basin are evaporation platform and restricted platform, whereas the salt basin is one of the main factors controlling the poly-salt center.(2) The distribution and migration of this salt basin were affected by certain factors. The salt basin of the Jialingjiang Formation was mainly distributed in the east and central Sichuan Basin, whereas that of the Leikoupo Formation was mainly distributed in the central and west Sichuan Basin. The sedimentary centers have gradually moved westward and become smaller.(3) Three main formation mechanisms were identified for the potassium-rich brine during the Triassic in the Sichuan Basin, i.e., evaporation and concentration of seawater, surface fresh water leaching, and deep water-rock reaction. Fresh water leaching was characterized by low anomaly δ18 O and δ13 C values. Water-rock reaction was mainly related to temperature, and high temperature environment(caused by burial depth, overthrust and deep hydrothermal fluids) was beneficial to water-rock reaction. The characteristics of water-rock reaction do not correspond to the increase ratio of K·103/Cl and Br·103/Cl in brine, and the Rb+ content of the brine was high.(4) The formation mechanisms of potassium-rich brine differed between different areas of the Sichuan Basin. In east Sichuan, the evaporation and concentration of seawater, together with meteoric fresh water leaching, was the main formation factor, whereas the evaporation and concentration of seawater and water–rock reaction predominated in west Sichuan. This study of the sedimentary environment and formation mechanisms is of significance to the exploration and exploitation of potassium-rich brine in the Sichuan Basin. | ZHANG Bing YANG Kai WANG Xuben XU Zhengqi YANG Hongyu ZHANG Saimin CHEN Jinchao ZHANG Mingming LIU Wei | 2018 | Acta Geologica Sinica(English Edition)2018，92，6： | 4 |
| 15 | Cyanobacteria-based near-infrared light-excited self-supplying oxygen system for enhanced photodynamic therapy of hypoxic tumors显示文摘Tumor hypoxia has been considered to induce tumor cell resistance to radiotherapy and anticancer chemotherapy,as well as predisposing for increased tumor metastases.Therefore,strategies for the eradication of the hypoxic tumor are highly desirable.Photodynamic therapy(PDT)is a new technique that can be used to treat tumors using laser irradiation to photochemically activate a photosensitizer.Compared to traditional radiotherapy and chemotherapy,photodynamic therapy has many advantages,such as good selectivity,low toxicity,and less trauma and resistance.However,PDT is oxygen-dependent,and the lack of oxygen in hypoxic tumors renders photodynamic therapy ineffective.Cyanobacteria,the earliest photosynthetic oxygen-generating organisms,can utilize water as an electron donor to reduce CO_(2) into organic carbon compounds along with continuously releasing oxygen under sunlight.Inspired by this,herein,cyanobacteria were used as a living carrier of photosensitizer conjugated upconversion nanoparticles(UCNP)to construct a self-supplying oxygen PDT system.Improvement in the PDT efficiency for hypoxic tumors can be achieved as a result of in situ oxygen production by cyanobacteria under near-infrared(NIR)light using UCNP as a light harvesting antenna.A successful demonstration of this concept would be of great significance and could open the door to a new generation of carrier systems in the field of hypoxia-targeted drug transport platforms. | Yinghua Zhang Huifang Liu Xinyue Dai Hang Li Xiaohan Zhou Shizhu Chen Jinchao Zhang Xing-Jie Liang Zhenhua Li | 2021 | Nano Research2021，14，3： | 4 |
| 16 | Severe drought strongly reduces water use and its recovery ability of mature Mongolian Scots pine(Pinus sylvestris var. mongolica Litv.) in a semi-arid sandy environment of northern China显示文摘Trees growing in a semi-arid sandy environment are often exposed to drought conditions due to seasonal variations in precipitation, low soil water retention and deep groundwater level.However, adaptability and plasticity of individuals to the changing drought conditions greatly vary among tree species.In this study, we estimated water use(Ts) of Mongolian Scots pine(MSP;Pinus sylvestris var.mongolica Litv.) based on sap flux density measurements over four successive years(2013–2016) that exhibited significant fluctuations in precipitation in a semi-arid sandy environment of northern China.The results showed that fluctuations in daily Ts synchronously varied with dry-wet cycles of soil moisture over the study period.The daily ratio of water use to reference evapotranspiration(Ts/ET0) on sunny days in each year showed a negative linear relationship with the severity of drought in the upper soil layer(0–1 m;P<0.01).The decrease in Ts induced by erratic drought during the growing season recovered due to precipitation.However, this recovery ability failed under prolonged and severe droughts.The Ts/ET0 ratio significantly declined with the progressive reduction in the groundwater level(gw) over the study period(P<0.01).We concluded that the upper soil layer contributed the most to the Ts of MSP during the growing season.The severity and duration of droughts in this layer greatly reduced Ts.Nevertheless, gw determined whether the Ts could completely recover after the alleviation of long-term soil drought.These results provide practical information for optimizing MSP management to stop ongoing degradation in the semi-arid sandy environments. | DANG Hongzhong ZHANG Lizhen YANG Wenbin FENG Jinchao HAN Hui CHEN Yiben | 2019 | Journal of Arid Land2019，11，6： | 4 |
| 17 | Enhancement of cytotoxic T lymphocyte activity by dendritic cells loaded with Tat-protein transduction domain-fused hepatitis B virus core antigen显示文摘人的免疫不全 virus-1-Tat 蛋白质的蛋白质 transduction 领域(PTD ) 有唯一的力量渗透细胞的膜。综合 Tat-PTD 47 的顺序 57 和肝炎 B 病毒核心抗原(HBcAg ) ,我们拼接这些序列并且连接了熔化基因进 pMAL-c2x 向量。熔化蛋白质被亲密关系层析净化并且与骨头搏动了导出髓的树枝状的房间(DC ) ,和 recombinant 蛋白质的 transduction 被免疫检测荧光抗体试金。当 recombinant HBcAg 在房间的表面上被检测时,结果证明 recombinant PTD-HBcAg 能渗透细胞质进 DC。DC 表面分子的百分比 CD86 和主要 histocompatibility 建筑群 II,和 recombinant PTD-HBcAg 导致的 cytokine (IL-12p70 ) 的生产例如 CD80,比 recombinant HBcAg 或肿瘤坏死 factor-α 导致的那些显著地高。与 PTD-HBcAg 对待的 DC 导致了 T 房间区分进特定的细胞毒素的 T 淋巴细胞(CTL ) 并且提高了杀死反应的 CTL。在结论,表示并且净化的 PTD-HBcAg 熔化蛋白质能通过血浆膜渗透进房间,支持 DC 成熟,并且提高 T 房间反应高效地产生 HBcAg 特定的 CTL。 | Xiaohua Chen Yongsheng Yu Qingchun Pan Zhenghao Tang Jinchao Han Guoqing Zang | 2008 | Acta Biochimica et Biophysica Sinica2008，40，12： | 4 |
| 18 | Prevention of diet-induced obesity by safflower oil: insights at the levels of PPARα, Orexin, and Ghrelin gene expression of adipocytes in mice显示文摘这研究的目的是在老鼠由一本高红花油食谱和 adipocytic 基因表示调查导致食谱的肥胖的预防。四十只 3-week-old C57BL/6 老鼠随机被划分成三个组:控制组(反对, 5% 猪油 +5% 红花油) ,高猪油组(LAR, 45% 猪油 +5% 红花油) ,并且高红花油组(SAF, 45% 红花油 +5% 猪油) 。在 10 个星期以后, LAR 组的 10 只老鼠高被换到红花油饮食(LARSAF ) 。十个星期以后,葡萄糖忍耐测试被葡萄糖的 intraperitoneal 注射执行。类脂化合物和胰岛素的传播层次被测量,白脂肪质的纸巾为基因薄片和反向的 transcriptasepolymerase 链反应分析被拿。LAR 组比 CON 组显示出更高的身体重量,脂肪过多索引,胰岛素,和类脂化合物(P < 0.05 ) 。在 LARSAF 组的身体重量在饮食的颠倒以后减少了。血浆生物化学的侧面在 LARSAF 和 SAF 组减少了(P < 0.05 ) 与那些相比 LAR 组。LARSAF 组的血葡萄糖水平与 LAR 组的相比在 intraperitoneal 葡萄糖忍耐测试期间被减少。LARSAF 组有 Orexin 和 Ghrelin 基因表示的底层,而 PPAR 基因表示的水平显著地与 LAR 组的相比被提高。那么, SAF 食谱能改变 adipocytic 在导致食谱的肥胖的有效改善的脂肪过多相关的基因表示和结果。 | Zhong Zhang Qiang Li Fengchen Liu Yuqian Sun Jinchao Zhang | 2010 | Acta Biochimica et Biophysica Sinica2010，42，3： | 3 |
| 19 | Economic Analysis of using Above Ground Gas Storage Devices for Compressed Air Energy Storage System显示文摘Above ground gas storage devices for compressed air energy storage(CAES) have three types:air storage tanks,gas cylinders,and gas storage pipelines.A cost model of these gas storage devices is established on the basis of whole life cycle cost(LCC) analysis.The optimum parameters of the three types are determined by calculating the theoretical metallic raw material consumption of these three devices and considering the difficulties in manufacture and the influence of gas storage device number.The LCCs of the three types are comprehensively analyzed and compared.The result reveal that the cost of the gas storage pipeline type is lower than that of the other two types.This study may serve as a reference for designing large-scale CAES systems. | LIU Jinchao ZHANG Xinjing XU Yujie CHEN Zongyan CHEN Haisheng TAN Chunqing | 2014 | Journal of Thermal Science2014，23，6： | 3 |
| 20 | Experimental research of active vibration and noise control of electrically controlled rotor显示文摘Electrically Controlled Rotor(ECR),also called as swashplateless rotor,applies blade pitch inputs via trailing-edge flaps system instead of traditional swashplate mechanism.In addition to primary control,rotor vibration reduction and noise alleviation are also achievable via applying higher harmonic control inputs with the trailing-edge flaps.In this paper,the feasibility of ECR to reduce vibration and noise actively is verified experimentally.Firstly,the test scheme of ECR active vibration and noise control is proposed,and the ECR test platform is modified according to the test scheme.Then,an adaptive control algorithm based on Kalman filter is developed.Lastly,hover and wind tunnel tests is performed to verify the feasibility of ECR active vibration and noise control.The results demonstrate that the ECR are effective for reducing rotor vibration and noise simultaneously.In the hover condition,the ECR can reduce the in-plane hub vibration by 42%and the inplane noise by 4dB.In wind tunnel condition,ECR can reduce the hub vibration by 75%and the BVI noise by 3dB. | Jinchao MA Yang LU Taoyong SU Shujun GUAN | 2021 | Chinese Journal of Aeronautics2021，34，11： | 3 |
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