|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Relationship between surface pollen assemblages and vegetation in Luonan Basin, Eastern Qinling Mountains, Central China显示文摘在华中的南方 Luohe 河的集水是为因为它位于在南方和北方中国之间的过渡地区,调查现代花粉环境关系的一个重要区域,对气候敏感的环境变化。在这研究,在十种植被类型下面的 40 件表面样品是镇定的揭示在花粉集合和植被之间的关系。结果证明表面花粉集合反映植被相当好。在森林表层土,树木的花粉内容的一般水准比 40% 大,并且 Selaginella sinensis 孢子高。至于稀少的森林草地和灌木社区,平均树木的花粉分别地是 13.2% 和 16.6% ,并且灌木花粉比草地样品的相对高。草地和农田被树和灌木花粉的低百分比描绘(<10% 并且 <1%) ,并且植物的高百分比(>80%) 。因为他们的疏开能力, Pinus, Quercus 和某另外的树木的花粉能显示地区性的植被。Quercus 花粉是在代表下面那么是 Pinus。Artemisia 花粉是显著地过去代表的,与植物范围有差的关联,并且可以思考人的骚乱。Gramineae 能显示植物相当好,但是与低表示一起。Chenopodiaceae 的高内容可能建议人的影响。占优势的 Selaginella sinensis 能被用作森林环境的指示物。簇分析和花粉集合的主要部件分析能区分森林和非森林植被很好。以前的方法擅长分开松并且混合森林,当后者是更稳定的并且能更好区分农田和另外的非森林区域时。PCA 的第一轴主要反映湿度。 | ZHANG Wenchao LI Chunhai LU Huayu TIAN Xianhua ZHANG Hongyan LEI Fang TANG Lingyu | 2014 | Journal of Geographical Sciences2014，24，3： | 6 |
| 2 | High energy-storage properties of Bi_(0.5)Na_(0.5)TiO_3-BaTiO_3-SrTi_(0.875)Nb_(0.1)O_3 lead-free relaxor ferroelectrics显示文摘New lead-free ferroelectric(0.94-x)Bio_(0.5)Na_(0.5)TiO_3-0.06 BaTiO_(3-x)SrTi_(0.875)Nb_(0.1)O_3(BNBT-STN,x = 0 and 0.2)are synthesized by using a solid state reaction process. In this work, an obvious evolution of dielectric relaxation behavior and slim P-E hysteresis loops with high Pmax and low Pr is observed for BNBT-0.2 STN,indicating the dominant of ergodic relaxor phase with dynamic polar nano-regions(PNRs). A relatively large recoverable energy density(Wrec = 1.17 J/cm^3) with high energy efficiency(η= 91%) is obtained. Furthermore, it shows small variation(9%) in the temperature range of 30-150 ℃ and fatigue-free behavior,which can be attributed to the absence of ferroelectric domain in the relaxor phase. The achievement of these characteristics provides that tailoring by B-site vacancies is a potential route when designing a new energy-storage system for BNT-based relaxor ferroelectric materials. | Jing Shi Xiao Liu Wenchao Tian | 2018 | Journal of Materials Science & Technology2018，34，12： | 4 |
| 3 | Moxa Wool in Different Purities and Different Growing Years Measured by Terahertz Spectroscopy显示文摘Moxa wool is a traditional Chinese herbal medicine,which can warm channels to dispel coldness.At present,there is no unified index to evaluate the purity and growing years of moxa wool in the market.Terpineol is one of the effective substances in the volatile oil of moxa wool.Here,we characterize the purity and growing years of moxa wool by studying terpineol.Gas chromatography-mass spectrometry(GC-MS)and high-performance liquid chromatography(HPLC)are the methods for monitoring terpineol at present,all of which have defects of complicated procedures. | Yongni Shao Di Zhu Yutian Wang Zhi Zhu Wenchao Tang Zhengan Tian Yan Peng Yiming Zhu | 2022 | Plant Phenomics2022，4，1： | 1 |
| 4 | QoS-aware load balancing algorithm for joint group call admission control in heterogeneous networks 显示文摘 | Rongrong Lian Hui Tian Wenchao Fei | 2012 | Vehicular Technology Conference ( VTC Spring )2012，，： | 1 |
| 5 | Freeze-drying and hot-pressing strategy to embed two-dimensional Ti_(0.87)O_(2) monolayers in commercial polypropylene films with enhanced dielectric properties显示文摘The dielectric capacitor has been widely used in advanced electronic and electrical power systems due to its capability of ultrafast charging–discharging and ultrahigh power density.Nevertheless,its energy density is still limited by the low dielectric constant(≈2.2)of the commercial dielectric polypropylene(PP).The conventional enhancement strategy by embedding inorganic fillers in PP matrix is still difficult and challenging due to that PP hardly dissolves in any inorganic/organic solvent.In this work,we develop a new strategy including freeze-drying,surface functionalization,and hot-pressing to incorporate Ti_(0.87)O_(2) monolayers in PP film.A series of uniform composited Ti_(0.87)O_(2)@PP film has been successfully fabricated with Ti0.87O2 content range of 0–15 wt%.The maximum dielectric constant of the as-prepared Ti_(0.87)O_(2)@PP film is 3.27 when the Ti_(0.87)O_(2) content is 9 wt%,which is about 1.5 times higher than that of pure PP.Our study provides a feasible strategy to embed two-dimensional material into commercial PP thin-film with superior dielectric performance for practical application. | Wenchao Tian Fei Yan Cailing Cai Zeyi Wu Chenchen Zhang Ting Yin Sijia Lao Linfeng Hu | 2021 | Journal of Advanced Ceramics2021，10，2： | 1 |
| 6 | Design of Permanent Ma- gnet Brushless DC Motor Control System Based on DSP- IC30Fg012显示文摘 | WU Qingqing TIAN Wenchao | 2012 | Procedia Engineering2012，29，3： | 1 |
| 7 | Integrated Optimal Siting and Sizing for VSCHVDC-link-based Offshore Wind Farms and Shunt Capacitors显示文摘It is economic and secure to determine the optimal siting and sizing of the offshore wind farms(OWFs)integrated into the AC system through voltage-source converter high-voltage direct current(VSC-HVDC)links.In this paper,an integrated planning model for the VSC-HVDC-link-based OWFs and the capacitors is proposed,where a decomposition technique is presented to solve the proposed mixed-integer nonlinear programming(MINLP)problem and obtain the optimal solution.This model can optimize the siting and sizing of the OWFs to improve the voltage profile and reduce the adverse influence of the reactive power of the OWFs.With the proposed planning model,the total investment costs,operation costs and maintenance costs of the OWFs,VSC-HVDC links,and the capacitors can be minimized.Simulations on the modified IEEE 118-bus system show that the proposed integrated planning model can provide more economic scheme than the independent planning scheme,in which the capacitors are planned after the OWFs.Besides,a series of sensitivity analysis on certain equipment costs are studied to obtain the regular pattern for sizing VSC stations. | Yong Li Xuebo Qiao Chun Chen Yi Tan Wenchao Tian Qiuping Xia Yijia Cao Kwang Y.Lee | 2021 | Journal of Modern Power Systems and Clean Energy2021，9，2： | 1 |
| 8 | Discovery of a subtype-selective, covalent inhibitor against palmitoylation pocket of TEAD3显示文摘The TEA domain(TEAD)family proteins(TEAD1-4)are essential transcription factors that control cell differentiation and organ size in the Hippo pathway.Although the sequences and structures of TEAD family proteins are highly conserved,each TEAD isoform has unique physiological and pathological functions.Therefore,the development and discovery of subtype selective inhibitors for TEAD protein will provide important chemical probes for the TEAD-related function studies in development and diseases.Here,we identified a novel TEAD 1/3 covalent inhibitor(DC-TEADin1072)with biochemical IC50 values of 0.61±0.02 and 0.58±0.12μmol/L against TEAD1 and TEAD3,respectively.Further chemical optimization based on DC-TEAD in 1072 yielded a selective TEAD3 inhibitor DCTEAD3 in03 with the IC_(50) value of 0.16±0.03μmol/L,which shows 100-fold selectivity over other TEAD isoforms in activity-based protein profiling(ABPP)assays.In cells,DC-TEAD3 in03 showed selective inhibitory effect on TEAD3 in GAL4-TEAD(1-4)reporter assays with the IC50 value of1.15μmol/L.When administered to zebrafish juveniles,experiments showed that DC-TEAD3 in03 reduced the growth rate of zebrafish caudal fins,indicating the importance of TEAD3 activity in controlling proportional growth of vertebrate appendages. | Tian Lu Yong Li Wenchao Lu TWGM Spitters Xueyu Fang Jun Wang Simian Cai Jing Gao Yanting Zhou Zhe Duan Huan Xiong Liping Liu Qi Li Hualiang Jiang Kaixian Chen Hu Zhou Hua Lin Huijin Feng Bing Zhou Christopher L.Antos Cheng Luo | 2021 | Acta Pharmaceutica Sinica B2021，11，10： | 0 |
| 9 | Tailoring morphology symmetry of bismuth vanadate photocatalysts for efficient charge separation显示文摘Although spatial charge separation between different facets of semiconductor crystals has been recognized as a general strategy in photocatalysis, the vital role of crystal morphology symmetry in charge separation properties still remains elusive. Herein,taking monoclinic bismuth vanadate(BiVO_(4)) as a platform, we found distinct charge separation difference via rationally tailoring the morphology symmetry from octahedral to truncated octahedral crystals. For octahedral BiVO_(4), photogenerated electrons and holes can be separated between edges and quasi-equivalent facets. However, as for truncated octahedral crystals,photogenerated electrons tend to transfer to {010} facets while photogenerated holes prefer to accumulate on {120} facets, thus realizing the spatial separation of photogenerated charge between different facets. Morphology tailoring of BiVO_(4) crystals leads to a significantly improved photogenerated charge separation efficiency and photocatalytic water oxidation activity. The built-in electric field for driving the separation of photogenerated electrons and holes is considered to be modulated by tuning the morphology symmetry of BiVO_(4) crystals. This work discloses the significant roles of morphology symmetry in photogenerated charge separation and facilitates the rational design of artificial photocatalysts. | Yuting Deng Hongpeng Zhou Chenwei Ni Fengke Sun Wenchao Jiang Ruotian Chen Wenming Tian Can Li Rengui Li | 2023 | Science China Chemistry2023，66，12： | 0 |
| 10 | Consistent Extended Kalman Filter Design for Maneuvering Target Tracking and Its Application on Hand Position Tracking显示文摘This paper propees the consistent extended Kalman flter(CEKF)for the maneuvering target tracking(MTT)with nonlinear uncertain dynamics,and applies it on hand poition tracking.The general modlel of the MTT system i presented with unmodleled dynamics in terms of nonlinear unknown function of states.The CEKF is propoeed to ensure that the bounds of the estimation error's covariance matrix are av ailable through the flter algorithm.As a result,the creponding accuracy of the flter approach can be achieved online.Furthermore,a CEKF-baaed MTT algorithm is constructed via the tumning aw of the critical parameter matrix QE Finally,the efectiveness of CEKF i verified by MTT numerical simulations and hand tacking expeiments under dilferent maneuvens.Specifcally,two indices are employed to compare the CEKF with extended Kalman filter(EKF):the mean square errors(MSEa)and the bounded percentage,ie the percentage of the rang w bere the estimation error is encboed by the bound calculated by algorithms.All MSEs of CEKF are smaller than thoee of EKF,where the worst MSEa of CEKF and EKF are0.14 and 418 in the simulation,a8 well 80.11 and 059 in the expeiments,respectively;all bounded percentages of CEKF are larger than thoee of EKF,where the wonst average bounded percentages of CEKF and EKF ame 87.86%and 14.58%,8 well as 97.41%and 41.79%in the experiments,reapectively. | Lin Tian Yang Xu Wenchao Xue Long Cheng | 2022 | Guidance, Navigation and Control2022，2，2： | 0 |
| 11 | Oxygen vacancy migration and its lattice structural origin in A-site non-stoichiometric bismuth sodium titanate perovskites显示文摘Off-stoichiometry of perovskite structural Bi0.5Na0.5TiO3(BNT)ferroelectrics can give rise to considerable oxide-ion conductivity.The inherent structural characteristics are urgent to be resolved due to its particular sensitivity of the conduction mechanism to the nominal composition and synthesis process.Herein,a thorough study of the temperature-dependent neutron,X-ray diffraction and Raman spectrum is carried out on a series of equivalently substituted A-site deficient non-stoichiometric and pristine BNT.Phase transition and defect association are systemically investigated in these dominated rhombohedral phases at room temperature,associated with well saturated ferroelectric states.Significant structural evolution identified by Rietveld refinements and the origin of the electrical performance are clarified at elevated temperatures,focusing on the subtle distortions of ionic displacements,oxygen octahedral tilts and local chemical environments for oxygen vacancies.The ion migration ability mediated by oxygen vacancies that are not energetically favorable in BNT mainly depends on the external substitutional disorder,and is strongly affected by the dopant concentration.Together with the lone pair substitution concept,superior oxide ionic conductivity is achieved,and an alternative strategy is provided in designing BNT based oxide ion conductors. | Jing Shi Xiao Liu Fangyuan Zhu Wenchao Tian Yuanhua Xia Tangyuan Li Rongrong Rao Tao Zhang Laijun Liu | 2022 | Journal of Materiomics2022，8，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员