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39篇 您的检索式:作者名="Wendan"
    题名 作者 年代 出处 被引量
1Angles-only initial relative orbit determination algorithm for noncooperative spacecraft proximity operations显示文摘This research furthers the development of a closed-form solution to the angles-only initial relative orbit determination problem for non-cooperative target close-in proximity operations when the camera offset from the vehicle center-of-mass allows for range observability.In previous work,the solution to this problem had been shown to be non-global optimal in the sense of least square and had only been discussed in the context of Clohessy–Wiltshire.In this paper,the emphasis is placed on developing a more compact and improved solution to the problem by using state augmentation least square method in the context of the Clohessy–Wiltshire and Tschauner–Hempel dynamics,derivation of corresponding error covariance,and performance analysis for typical rendezvous missions.A two-body Monte Carlo simulation system is used to evaluate the performance of the solution.The sensitivity of the solution accuracy to camera offset,observation period,and the number of observations are presented and discussed.Baichun Gong Wendan Li Shuang Li Weihua Ma Lili Zheng 2018Astrodynamics2018,2,3:20
2FRUCTOKINASE-LIKE PROTEIN 1 interacts with TRXz to regulate chloroplast development in rice显示文摘Chloroplast genes are transcribed by the plastidencoded RNA polymerase(PEP) or nucleus-encoded RNA polymerase. FRUCTOKINASE-LIKE PROTEINS(FLNs) are phosphofructokinase-B(Pfk B)-type carbohydrate kinases that act as part of the PEP complex; however, the molecular mechanisms underlying FLN activity in rice remain elusive.Previously, we identified and characterized a heat-stress sensitive albino(hsa_1) mutant in rice. Map-based cloning revealed that HSA_1 encodes a putative OsFLN_2. Here, we further demonstrated that knockdown or knockout of the OsFLN_1, a close homolog of HSA_1/OsFLN_2, considerably inhibits chloroplast biogenesis and the fln_1 knockout mutants, created by clustered regularly interspaced short palindromic repeats(CRISPR) and CRISPR-associate protein_9, exhibit severe albino phenotype and seedling lethality. Moreover, OsFLN_1 localizes to the chloroplast.Yeast two-hybrid, pull-down and bimolecular fluorescencecomplementation experiments revealed that OsFLN_1 and HSA_1/OsFLN_2 interact with THIOREDOXINZ(OsTRXz) to regulate chloroplast development. In agreement with this,knockout of OsTRXz resulted in a similar albino and seedling lethality phenotype to that of the fln_1 mutants. Quantitative reverse transcription polymerase chain reaction and immunoblot analysis revealed that the transcription and translation of PEP-dependent genes were strongly inhibited in fln_1 and trxz mutants, indicating that loss of OsFLN_1, HSA_1/OsFLN_2, or OsTRXz function perturbs the stability of the transcriptionally active chromosome complex and PEP activity. These results show that OsFLN_1 and HSA_1/OsFLN_2 contribute to chloroplast biogenesis and plant growth.Lei He Sen Zhang Zhennan Qiu Juan Zhao Wendan Nie Haiyan Lin Zhengge Zhu Dali Zeng Qian Qian Li Zhu 2018Journal of Integrative Plant Biology2018,60,2:6
3Small interfering RNA-based molecular therapy of cancers显示文摘RNA interference(RNAi)has become a gold standard for validating gene function in basic life science research and provides a promising therapeutic modality for cancer and other diseases.This minireview focuses on the potential of small interfering RNAs(siRNAs)in anticancer treatment,including the establishment and screening of cancer-associated siRNA libraries and their applications in anticancer drug target discovery and cancer therapy.This article also describes the current delivery approaches of siRNAs using lipids,polymers,and,in particular,gold nanoparticles to induce significant gene silencing and tumor growth regression.Wei Guo Wangbing Chen Wendan Yu Wenlin Huang Wuguo Deng 2013Chinese Journal of Cancer2013,32,9:5
4How Can Chinese Farmers' Property Income Be Improved?A Population-Land Coupling Urbanization Mechanism显示文摘Balancing urban and rural development is an important political goal in China.The failure of rural land privatization has led to a low level of rural economic development and a vast property income gap between citizens and farmers.This paper illustrates the reasons for property income inequality from the perspective of the land tenure system and the dualistic household registration system.After evaluating the segmentation of the rural land market and the rigid nature of rural land assets,a population-land coupling urbanization mechanism is proposed.The paper argues that China s land property system has externalized a high degree of geospatial and social urban and rural intertwinement.Major reform of the rural land property rights system is required to correct the situation(further development of the social security system and stable urbanization)and to increase property income potential for farmers.Yuzhe Wu Wendan Jiang Jiaojiao Luo Xiaoling Zhang Martin Skitmore 2019China & World Economy2019,27,2:5
5《汉语话题链--篇章分析与语言教学中的应用》简介显示文摘LI Wendan 王建国(简介) 2008当代语言学2008,10,2:3
6Just-in-time learning based integrated MPC-ILC control for batch processes显示文摘Considering the two-dimension(2 D) characteristic and the unknown optimal trajectory problem of the batch processes, an integrated model predictive control-iterative learning control(MPC-ILC) for batch processes is proposed in this paper. Firstly, the batch-axis information and time-axis information are combined into one quadratic performance index. It implies the integration of ILC and MPC algorithm idea, which leads to superior tracking performance and better robustness against disturbance and uncertainty. To address the problem of the unknown optimal trajectory, both time-varying prediction horizon and end product quality control are employed. Moreover, an integrated 2 D just-in-time learning(JITL) model is used to improve the predictive accuracy. Furthermore, rigorous description and proof are presented to prove the convergence and tracking performance of the proposed MPC-ILC strategy. The simulation results show the effectiveness of the proposed method.Li Jia Wendan Tan 2018Chinese Journal of Chemical Engineering2018,26,8:3
7Nano-polycrystalline diamond formation under ultra-high pressure显示文摘Chao Xu Duanwei He Haikuo Wang Junwei Guan Chunmei Liu Fang Peng Wendan Wang Zili Kou Kai He Xiaozhi Yan Yan Bi Lei Liu Fengjiao Li Bo Hui 2013International Journal of Refractory Metals and Hard Materials2013,,:2
8Activity Information Decomposition Based on ProA显示文摘Quanyou Sha Zhe Fan Xiansheng Qin Wendan Wang 2007Journal of Systems Science and Information2007,5,4:2
9Three-dimensional tidal current numerical model of the Oujiang Estuary显示文摘The characteristics of three-dimensional (3-D) tidal current in the Oujiang Estuary are investigated according to in situ observations. The Oujiang Estuary has features of irregular coastline, complex topography, many islands, moveable boundary, and submerged dyke, therefore, a 3-D numerical model on an unstructured triangular grid has been developed. The σ coordinate transformation, the moveable boundary and submerged dyke treatment techniques were employed in the model so it is suitable for the tidal simulations in the Oujing Estuary with submerged dyke and moveable boundary problems. The model is evaluated with the in situ data, and the results show that the calculated water elevations at 19 stations and currents at 19 profiler stations are in good agreement with measured data both in magnitude and phase. This numerical model is applied to the 3-D tidal circulation simulations of experiments in stopping flow transport through the South Branch of the Oujiang Estuary, and the feasibility to cutoff the flow in the South Branch of the Oujiang Estuary is demonstrated by numerical simulation experiments. The developed numerical model simulated the 3-D tidal current circulations in complicated coastal and estuarine waters very well.LI Mengguo LI Wendan 2009Acta Oceanologica Sinica2009,28,3:2
10Synthesis of novel superhard materials under ultrahigh pressure显示文摘Superhard materials are solids whose Vickers hardness is beyond 40 GPa. They have wide applications in industry such as cutting and polishing tools, wear-resistant coatings. Most preparations of superhard materials are conducted under extreme pressure and temperature conditions, not only for scientific investigations, but also for the practical applications. In this paper, we would introduce the recent progress on the design and preparations of novel superhard materials, mainly on nanopolycrystalline diamond, B–C–N superhard solid solutions, and cubic-Si3N4/diamond nanocomposites prepared under ultrahigh pressure and high temperature(HPHT), using multi-anvil apparatus based on the hinged-type cubic press. Bulk materials of all these superhard phases have been successfully synthesized and are systematically tested. We emphasize that ultra-HPHT method plays an important role in the scientific research and industrial production of superhard materials. It provides the driving forces for the light elements forming novel superhard phases as well as the way for sintering high-density nanosuperhard materials.Chao Xu Duanwei He Haikuo Wang Wendan Wang Mingjun Tang Pei Wang 2014Chinese Science Bulletin2014,59,36:2
11Compre-hensive evaluation index system of Low carbon roadtransport based on fuzzy evaluation method显示文摘ZHANG Wendan LU Jian ZHANG Yi 2016Pro-cedia Engineering2016,8,7:1
12Topic chains in Chinese discourse显示文摘Li Wendan 0,,01:1
13A strong second-harmonic generation material Cd4BiO ( BO3 ) 3 originating from 3-chromophore asym- metric structures显示文摘ZHANG Weilong CHENG Wendan ZHANG Hao 2010J Am Chern Soc2010,132,5:1
14Top chains in Chinese discourse显示文摘Li Wendan 0,,01:1
15Topic Chains in Chinese Discourse显示文摘Wendan Li 2004Discourse Processes2004,,1:1
16Cadmium phytoavailability to rice ( Oryza sativa L.) grown in representative Chinese soils. A model to improve soil environmental quality guidelines for food safety显示文摘Muhammad T. Rafiq Rukhsanda Aziz Tingqiang Li Wendan Xiao Muhammad K. Rafiq Basharat Ali Xiaoe Yang 2013Ecotoxicology and Environmental Safety2013,,:1
17Syntheses and characterization of new mid-infrared transparency compounds: centric Baz BiGaSs and acentric Ba2BiInS5显示文摘Geng Lei Cheng Wendan Lin Chensheng 2011Inorg Chem2011,50,12:1
18Comprehensive evaluation index system of low carbon road transport based on fuzzy evaluation method显示文摘ZHANG Wendan LU Jian ZHANG Yi 2016Procedia Engineering2016,8,7:1
19Quantitative measurements of pressure gradients for the pyrophyllite and magnesium oxide pressure-transmitting mediums to 8?GPa in a large-volume cubic cell显示文摘Haikuo Wang Duanwei He Xiaozhi Yan Chao Xu Junwei Guan Ning Tan Wendan Wang 2011High Pressure Research2011,,4:1
20Pathologically triggered in situ aggregation of nanoparticles for inflammation-targeting amplification and therapeutic potentiation显示文摘Uncontrolled and persistent inflammation is closely related to numerous acute and chronic diseases.However,effective targeting delivery systems remain to be developed for precision therapy of inflammatory diseases.Herein we report a novel strategy for engineering inflammationaccumulation nanoparticles via phenolic functionalization.Different phenol-functionalized nanoparticles were first developed,which can undergo in situ aggregation upon triggering by the inflammatory/oxidative microenvironment.Phenolic compound-decorated poly(lactide-co-glycolide)nanoparticles,in particular tyramine(Tyr)-coated nanoparticles,showed significantly enhanced accumulation at inflammatory sites in mouse models of colitis,acute liver injury,and acute lung injury,mainly resulting from in situ cross-linking and tissue anchoring of nanoparticles triggered by local myeloperoxidase and reactive oxygen species.By combining a cyclodextrin-derived bioactive material with Tyr decoration,a multifunctional nanotherapy(TTN)was further developed,which displayed enhanced cellular uptake,antiinflammatory activities,and inflammatory tissue accumulation,thereby affording amplified therapeutic effects in mice with colitis or acute liver injury.Moreover,TTN can serve as a bioactive and inflammation-targeting nanoplatform for site-specifically delivering a therapeutic peptide to the inflamed colon post oral administration,leading to considerably potentiated in vivo efficacies.Preliminary studies also revealed good safety of orally delivered TTN.Consequently,Tyr-based functionalization is promising for inflammation targeting amplification and therapeutic potentiation of nanotherapies.Qiang Nie Chenwen Li Yu Wang Yi Hu Wendan Pu Qixiong Zhang Jiajun Cai Yongyao Lin Gang Li Chenping Wang Lanlan Li Yin Dou Jianxiang Zhang 2023Acta Pharmaceutica Sinica B2023,13,1:1
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