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39篇 您的检索式:作者名="Xing Yufeng"
    题名 作者 年代 出处 被引量
1Pm21 from Haynaldia villosa Encodes a CC-NBS- LRR Protein Conferring Powdery Mildew Resistance in Wheat显示文摘Liping Xing Ping Hu Jiaqian Liu Kamil Witek Shuang Zhou Jiefei Xu Weihao Zhou Li Gao Zhenpu Huang Ruiqi Zhang Xiue Wang Peidu Chen Haiyan Wang Jonathan D.G. Jones Miroslava Karafiatova Jan Vrana Jan Baros Jaroslav Dolezel Yuanchun Tian Yufeng Wu Aizhong Cao 2018Molecular Plant2018,11,6:16
2Liquid propellant analogy technique in dynamic modeling of launch vehicle显示文摘The coupling effects among lateral mode,longitudinal mode and torsional mode of a launch vehicle cannot be taken into account in traditional dynamic analysis using lateral beam model and longitudinal spring-mass model individually.To deal with the problem,propellant analogy methods based on beam model are proposed and coupled mass-matrix of liquid propellant is constructed through additional mass in the present study.Then an integrated model of launch vehicle for free vibration analysis is established,by which research on the interactions between longitudinal and lateral modes,longitudinal and torsional modes of the launch vehicle can be implemented.Numerical examples for tandem tanks validate the present method and its necessity.PAN ZhongWen 1,2 ,XING YuFeng 1 ,ZHU LiWen 2 ,DONG Kai 2 &SUN Mu 2 1Solid Mechanics Research Center,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2 Beijing Astronautics Systems Engineering Institute,Beijing 100076,China 2010Science China(Technological Sciences)2010,53,8:11
3Tongluo Digui decoction(通络地龟汤)treats renal injury in diabetic rats by promoting autophagy of podocytes显示文摘OBJECTIVE:To investigate the effects of Tongluo Digui decoction on renal injury and streptozotocin-induced podocyte autophagy in diabetic rats.METHODS:Male Sprague-Dawley rats were randomly divided into six groups:normal,model,Tongluo Digui decoction(high,medium,and low dose)and valsartan.Streptozotocin was injected intraperitoneally to replicate the diabetic animal model.After 8 weeks,proteinuria was evaluated to establish the diabetic nephropathy model.Treatments were administered daily via the intragastric route.At 16 weeks after gavage,we determined 24 h urine protein concentration,and blood glucose,serum creatinine,and urea nitrogen concentrations.Then,rats were sacrificed,and kidneys were harvested and stained with periodic acid-Schiff to evaluate the pathological changes in glomeruli,including glomerular podocytes by transmission electron microscopy.Western blot analysis was used to determine the expression of nephrin,podocin,p62,beclin-1,LC3Ⅱ/Ⅰ,and p-m TOR/m TOR protein in kidney tissues.RESULTS:Compared with the model group,Tongluo Digui decoction was associated with decreases in 24 h urine protein concentration,and blood glucose,hemoglobin A1 c,serum creatinine,urea nitrogen concentrations,total serum protein and albumin.Concurrently,mesangial mesenteric broadening and fusion of foot processes were reduced,the glomerular basement membrane was not significantly thickened,and the number of podocytes and the number of autophagosomes in the podocytes was increased.Further,expression of nephrin,podocin,LC3Ⅱ,and beclin-1 protein in kidney tissue was up-regulated,while expression of p62 protein was down-regulated and m TOR phosphorylation was inhibited.CONCLUSION:Tongluo Digui decoction may inhibit the progression of diabetic nephropathy by inhibiting m TOR phosphorylation,thereby increasing autophagy to protect podocytes and reducing proteinuria.HAN Jiarui ZHANG Yage SHI Xiujie PENG Zining XING Yufeng PANG Xinxin 2021Journal of Traditional Chinese Medicine2021,41,1:9
4CHARACTERISTIC EQUATIONS AND CLOSED-FORM SOLUTIONS FOR FREE VIBRATIONS OF RECTANGULAR MINDLIN PLATES显示文摘The direct separation of variables is used to obtain the closed-form solutions for the free vibrations of rectangular Mindlin plates. Three different characteristic equations are derived by using three different methods. It is found that the deflection can be expressed by means of the four characteristic roots and the two rotations should be expressed by all the six characteristic roots,which is the particularity of Mindlin plate theory. And the closed-form solutions,which satisfy two of the three governing equations and all boundary conditions and are accurate for rectangular plates with moderate thickness,are derived for any combinations of simply supported and clamped edges. The free edges can also be dealt with if the other pair of opposite edges is simply supported. The present results agree well with results published previously by other methods for different aspect ratios and relative thickness.Yufeng Xing Bo Liu 2009Acta Mechanica Solida Sinica2009,22,2:5
5EXACT SOLUTIONS FOR FREE IN-PLANE VIBRATIONS OF RECTANGULAR PLATES显示文摘All possible exact solutions are successfully obtained in terms of 10 sets of distinct eigensolutions for the free in-plane vibration of isotropic rectangular plates. The plates have simply supported condition at two opposite edges and any combination of classical boundary conditions at the other two edges. The exact solutions are validated through both mathematical proof and comparisons with the solutions of differential quadrature method. Some unusual phenomena are revealed in free in-plane vibrations of rectangular plates due to one of the eigenvalues being zero. This work constitutes an improved version of very recent corresponding work by the same authors [Int. J. Mech. Sci., 2009, 51: 246-255]. Both the solution forms and solving procedures in the previous work are substantially simplified. Some new results are also given, which are useful for validation purpose in future.Bo Liu Yufeng Xing 2011Acta Mechanica Solida Sinica2011,24,6:5
6Closed form solutions for free vibrations of rectangular Mindlin plates显示文摘A new two-eigenfunctions theory, using theamplitude deflection and the generalized curvature as twofundamental eigenfunctions, is proposed for the freevibration solutions of a rectangular Mindlin plate. The threeclassical eigenvalue differential equations of a Mindlin plateare reformulated to arrive at two new eigenvalue differentialequations for the proposed theory. The closed form eigen-solutions,which are solved from the two differential equationsby means of the method of separation of variables areidentical with those via Kirchhoff plate theory for thin plate,and can be employed to predict frequencies for any combinationsof simply supported and clamped edge conditions.The free edges can also be dealt with if the other pair ofopposite edges are simply supported. Some of the solutionswere not available before. The frequency parameters agreeclosely with the available ones through pb-2 Rayleigh-Ritzmethod for different aspect ratios and relative thickness ofplate.Yufeng Xing Bo Liu The Solid Mechanics Research Center, Beihang University,100191 Beijing, China 2009Acta Mechanica Sinica2009,25,5:5
7Exploration of presence/absence variation and corresponding polymorphic markers in soybean genome显示文摘This study was designed to reveal the genome‐wide distribution of presence/absence variation(PAV) and to establish a database of polymorphic PAV markers in soybean. The 33 soybean whole‐genome sequences were compared to each other with that of Williams 82 as a reference genome. A total of 33,127 PAVs were detected and 28,912 PAV markers with their primer sequences were designed as the database NJAUSoyPAV_1.0. The PAVs scattered on whole genome while only 518(1.8%) overlapped with simple sequence repeats(SSRs) in BARCSOYSSR_1.0database. In a random sample of 800 PAVs, 713(89.13%) showed polymorphism among the 12 differential genotypes. Using 126 PAVs and 108 SSRs to test a Chinese soybean germplasm collection composed of 828 Glycine soja Sieb. et Zucc. and Glycine max(L.) Merr. accessions, the per locus allele number and its variation appeared less in PAVs than in SSRs. The distinctness among alleles/bands of PCR(polymerase chain reaction) products showed better in PAVs than in SSRs, potential in accurate marker‐assisted allele selection. The association mapping results showed SSR t PAV was more powerful than any single marker systems.The NJAUSoyPAV_1.0 database has enriched the source of PCR markers, and may fit the materials with a range of per locus allele numbers, if jointly used with SSR markers.Yufeng Wang Jiangjie Lu Shouyi Chen Liping Shu Reid G.Palmer Guangnan Xing Yan Li Shouping Yang Deyue Yu Tuanjie Zhao Junyi Gai 2014Journal of Integrative Plant Biology2014,56,10:5
8Effects of trigonelline inhibition of the Nrf2 transcription factor M vitro on Echmococcus granulosus显示文摘Wenjuan Qin Dongfang Guan Rongji Ma Rentan Yang Guoqiang Xing Hongjuan Shi Guangyao Tang Jiajie Li Hailong Lv Yufeng Jiang 2017Acta Biochimica et Biophysica Sinica2017,49,8:4
9A three-parameter single-step time integration method for structural dynamic analysis显示文摘The existing three-parameter single-step time integration methods, such as the Generalized-a method, improve numerical dissipation by modifying equilibrium equation at time points, which cause them to lose accuracy due to the interpolation of load vectors. Moreover, these three-parameter methods do not present an available formulation applied to a general secondorder non linear differential equatio n. To solve these problems, this paper proposes an innovative three-parameter single-step method by introducing an additional variable into update equations. Although the present method is spectrally identical to the Generalized-cx method for undamped systems, it possesses higher accuracy since it strictly satisfies the equilibrium equation at time points, and can be readily used to solve nonlinear equations. By the analysis of accuracy, stability, numerical dissipation and dispersion, the optimal second-order implicit and explicit schemes are generated, which can maximize low-frequency accuracy when high-frequency dissipation is specified. To check the performance of the proposed method, several numerical experiments are conducted and the proposed method is compared with a few up-to-date methods.Huimin Zhang Yufeng Xing 2019Acta Mechanica Sinica2019,35,1:3
10Providing Customized Security Based on Network Function Composition and Reconfiguration显示文摘Real-time multimedia sharing in Consumer-centric Multimedia Network(CMN) requires usability anywhere, anytime and from any device. However, CMNs are usually located or implemented on application layer, which makes CMNs subjected to their fixed substrate security framework. A fundamental diversifying attribute for the customized security experiences of CMNs is pressing. This paper proposes a programmable network structure which is named Service Processing Chain(SPC) based on network function combination. The SPC is established by the ordinal combination of network functions in substrate switches dynamically, and therefore constructs a special channel for each CMN with required security. The construction and reconfiguration algorithms of SPC are also discussed in this paper. Evaluations and implementation show that above approaches are effective in providing multilevel security with flexibility and expansibility. It is believed that the SPC could provide customized security service and drive participative real-time multimedia sharing for CMNs.HU Yuxiang LI Yufeng XING Chiqiang LIAO Jianxin 2016China Communications2016,13,S1:2
11Automatic video mosaicking algorithm via dynamic key-frame显示文摘Automatic video mosaicking is a challenging task in computer vision. Current researches consider either panoramic or mapping tasks on short videos. In this paper, an automatic mosaicking algorithm is proposed for both mapping and panoramic tasks based on the adapted key-frame on videos of any length.The speeded up robust features(SURF) and the grid motion statistic(GMS) algorithm are used for feature extraction and matching between consecutive frames, which are used to compute the transformation. In order to reduce the influence of the accumulated error during image stitching, an evaluation metric is put forward for the transformation matrix. Besides, a self-growth method is employed to stitch the global image for long videos. The algorithm is evaluated by using aerial-view and panoramic videos respectively on the graphic processing unit(GPU) device, which can satisfy the real-time requirement. The experimental results demonstrate that the proposed algorithm is able to achieve a better performance than the state-of-art.JI Yufeng LI Weixing FENG Kai XING Boyang PAN Feng 2020Journal of Systems Engineering and Electronics2020,31,2:1
12Enhanced Influenza VLP vaccines comprising matrix-2 ectodomain and nucleoprotein epitopes protects mice from lethal challenge显示文摘Xiao Gao WenJuan Wang YuFeng Li ShaoGeng Zhang YueQiang Duan Li Xing ZhongPeng Zhao PeiRui Zhang ZhiWei Li RuiSheng Li Xiliang Wang PengHui Yang 2013Antiviral Research2013,,1:1
13New exact solutions for free vibrations of thin orthotropic rectangular plates 显示文摘Xing Yufeng Liu Bo 2009Composite Structures2009,89,4:1
14Virus-like particle vaccine by intranasal vaccination elicits protective immunity against respiratory syncytial viral infection in mice显示文摘呼吸 syncytial 病毒(RSV ) 是在婴儿和孩子的更低的呼吸感染的一个领先的原因,但是仍然没有可得到的准许的疫苗。在这份报告,我们基于 Bac-to-Bac baculovirus 表达式系统开发了像病毒的粒子(VLP ) 疫苗,由一个流行性感冒病毒矩阵(M1 ) 组成蛋白质和 RSV 熔化蛋白质(F) 或 glycoprotein (G) 。这些 RSV VLP 被西方的污点分析和电子显微镜学识别。有 RSV-F VLP, RSV-G VLP,或两个的 intranasally 使免疫的女 BALB/c 老鼠(i.n ) 对 RSV 显示出病毒特定的抗体回答。全部的 IgG, IgG1, IgG2a,和 mucosal IgA 与 RSV-F 正 RSV-G VLP 在老鼠被检测,揭示细胞的有势力和 mucosal 免疫者回答。而且,我们发现这些混合 RSV VLP 对实时 RSV 挑战授与提高的保护,在病毒的复制和组织病理学说的变化的明显的变细与病毒的感染联系了的肺的出现重要减少。这些结果证明由 intranasal 种痘的 RSV-F 正 RSV-G VLP 是保证使用棉花老鼠和首领模型的进一步的评估的一个有希望的疫苗的候选人。Mengying Cai Cheng Wang Yufeng Li Hongjing Gu Sujing Sun Yueqiang Duan Chengcai Lai Keyu Wang Xiaolan Yang Li Xing Peirui Zhang Zhaohai Wang Shaogeng Zhang Xiaodong Guo Shubing Liu Yigang Tong Xiliang Wang Penghui Yang 2017Acta Biochimica et Biophysica Sinica2017,49,1:1
15Decreased expression of Beclin 1 correlates with a metastatic phenotypic feature and adverse prognosis of gastric carcinomas显示文摘Ying‐BoChen Jing‐HuiHou Xing‐YuFeng ShiChen Zhi‐WeiZhou Xiao‐ShiZhang Mu‐YanCai 2012J. Surg. Oncol2012,,:1
16Analytical solutions of impact problems of rod structures with springs显示文摘Xing Yufeng Zhu Dechao 1998Comput Methods Appl Mech Engrg1998,160,34:1
17Comprehensive exact solutions for free in-plane vibrations of orthotropic rectangular plates显示文摘Bo Liu Yufeng Xing 2011European Journal of Mechanics / A Solids2011,,3:1
18Exact solutions for free vibrations of orthotropic rectangular Mindlin plates显示文摘Bo Liu Yufeng Xing 2011Composite Structures2011,,7:1
19Geographic differentiation and phylogeographic relationships among world soybean populations显示文摘A fast-growing protein and oil crop,soybean was domesticated in ancient China and disseminated early in Asia and afterwards to other continents,in particular the Americas in recent centuries.After adaptation,locally developed landraces and cultivars formed a diversity of geographic-populations.In an investigation of their phylogeographic features,marker-derived traits were combined with geography-related photo-and temperaturesensitive traits to study 13 geographic-populations comprising 371 accessions.Extreme differentiation among geographic-populations was observed for flowering date(33–94 days),maturity date(79–181 days),and main stem node number(6–25 nodes).Restriction-site associated DNA sequencing revealed strong genetic differentiation among these geographic-populations,including genetic richness(alleles,35,242–44,986)and specific-present alleles(SPAs,0–67).More SPAs(28–67)emerged in some secondary and tertiary centers than in centers of origin(8–11).Phenotypic and genotypic clustering divided 11 of the 13 geographic-populations into the same five sets of sensitivity-similar geographic-populations and grouped the populations of northeast China and northern North America rather than center-of-origin populations as secondary centers,indicating the importance of geography-related traits in determining genetic differences among geographic-populations.A model of four soybean dissemination paths is presented:from the center of origin to the north,east,and south in Asia and from northeast China to Europe and the Americas.These findings provide a detailed phylogeographic understanding of worldwide soybeans.Xueqin Liu Jianbo He Yufeng Wang Guangnan Xing Yan Li Shouping Yang Tuanjie Zhao Junyi Gai 2020The Crop Journal2020,8,2:1
20An eigenelement method and two homogenization conditions显示文摘Under inspiration from the structure-preservingproperty of symplectic difference schemes for Hamiltoniansystems, two homogenization conditions for a representativeunit cell of the periodical composites are proposed, onecondition is the equivalence of strain energy, and the otheris the deformation similarity. Based on these two homogenizationconditions, an eigenelement method is presented,which is characteristic of structure-preserving property. Itfollows from the frequency comparisons that the eigenelementmethod is more accurate than the stiffness averagemethod and the compliance average method.Yufeng Xing Xingming Wang The Solid Mechanics Research Center, Beihang University, 100083 Beijing, China 2009Acta Mechanica Sinica2009,25,3:1
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