|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Arabidopsis PWWP domain proteins mediate H_3K_(27) trimethylation on FLC and regulate flowering time显示文摘LHP_1 mediates recruitment of the PRC_2 histone methyltransferase complex to chromatin and thereby facilitates maintenance of H_3 K_(27)me_3 on FLC, a key flowering repressor gene. Here, we report that the PWWP domain proteins(PDPs) interact with FVE and MSI5 to suppress FLC expression and thereby promote flowering. We demonstrated that FVE, MSI_5, and PDP_3 were co-purified with LHP_1. The H_3K_(27)me_3 level on FLC was decreased in the pdp mutants as well as in the fve/msi_5 double mutant. This study suggests that PDPs function together with FVE and MSI_5 to regulate the function of the PRC_2 complex on FLC. | Jin-Xing Zhou Zhang-Wei Liu Yong-Qiang Li Lin Li Bangjun Wang She Chen Xin-Jian He | 2018 | Journal of Integrative Plant Biology2018，60，5： | 5 |
| 2 | Effect of Mesoscale Land Use Change on Characteristics of Convective Boundary Layer:Semi-Idealized Large Eddy Simulations over Northwest China显示文摘Although large-scale topography and land use have been properly considered in weather and climate models, the effect of mesoscale and microscale heterogeneous land use on convective boundary layer(CBL) has not been fully understood yet. In this study, the influence of semi-idealized strip-like patches of oases and deserts, which resemble irrigated land use in Northwest China, on the CBL characteristics, is investigated based on the Weather Research and Forecasting(WRF)-large eddy simulation(LES) driven by observed land surface data. The influences of soil water content in oases on aloft CBL flow structure, stability, turbulent kinetic energy(TKE), and vertical fluxes are carefully examined through a group of sensitivity experiments. The results show that secondary circulation(SC)/turbulent organized structures(TOS) is the strongest/weakest when soil water content in oases is close to saturation(e.g.,when the oases are irrigated). With the decrease of soil water content in oases(i.e., after irrigation), SC(TOS) becomes weak(strong) in the lower and middle CBL, the flux induced by SC and TOS becomes small(large), which has a dramatic impact on point measurement of eddy covariance(EC) fluxes. The flux induced by SC and TOS has little influence on EC sensible heat flux, but great influence on EC latent heat flux. Under this circumstance, the area averaged heat flux cannot be represented by point measurement of flux by the EC method, especially just after irrigation in oases. Comparison of imbalance ratio(i.e., contribution of SC and TOS to the total flux) reveals that increased soil moisture in oases leads to a larger imbalance ratio as well as enhanced surface heterogeneity. Moreover,we found that the soil layer configuration at different depths has a negligible impact on the CBL flux properties. | Bangjun CAO Shuwen ZHANG Deqin LI Yanlin LI Linfan ZHOU Jiemin WANG | 2018 | Journal of Meteorological Research2018，32，3： | 4 |
| 3 | Unsupervised Nonlinear Adaptive Manifold Learning for Global and Local Information显示文摘In this paper,we propose an Unsupervised Nonlinear Adaptive Manifold Learning method(UNAML)that considers both global and local information.In this approach,we apply unlabeled training samples to study nonlinear manifold features,while considering global pairwise distances and maintaining local topology structure.Our method aims at minimizing global pairwise data distance errors as well as local structural errors.In order to enable our UNAML to be more efficient and to extract manifold features from the external source of new data,we add a feature approximate error that can be used to learn a linear extractor.Also,we add a feature approximate error that can be used to learn a linear extractor.In addition,we use a method of adaptive neighbor selection to calculate local structural errors.This paper uses the kernel matrix method to optimize the original algorithm.Our algorithm proves to be more effective when compared with the experimental results of other feature extraction methods on real face-data sets and object data sets. | Jiajun Gao Fanzhang Li Bangjun Wang Helan Liang | 2021 | Tsinghua Science and Technology2021，26，2： | 2 |
| 4 | 一种用于小空间湿度控制的全固态湿泵显示文摘众多领域对湿度管理都有着广泛的需求,传统的除湿技术多以冷却冷凝或干燥剂除湿为主。但是,这些方法具有固有的一些缺点,比如说能耗大、体积大、结构复杂等。本文作者研究出一种全固态“湿泵”,它充分结合了商用热电模块和硅胶除湿剂的优点,在散热器表面覆盖硅胶涂层,使得材料与热源之间的接触热阻达到最小,同时也保证了干燥剂与空气之间留有足够的传热传质面积。 | Bangjun Li Lingji Hua Yaodong Tu Ruzhu Wang 李巧红 | 2019 | 家电科技2019，，3： | 1 |
| 5 | Acute toxicity and effects of 1-alkyl-3- methylimidazolium bromide ionic liquids on green algae显示文摘 | Ma Jianmin Cai Linlin Zhang Bangjun Hu Lingwei Li Xiaoyu Wang Jianji | 2010 | Ecotoxicology and Environmental Safety2010，73，： | 1 |
| 6 | Support vector novelty detection in hidden space 显示文摘 | ZHANG Li WANG Bangjun LI Fanzhang | 2011 | Journal of Computational Information Systems2011，，7： | 1 |
| 7 | Assessing the Performance of Separate Bias Kalman Filter in Correcting the Model Bias for Estimation of Soil Moisture Profiles显示文摘The performance of separate bias Kalman filter (SepKF) in correcting the model bias for the improvement of soil moisture profiles is evaluated by assimilating the near-surface soil moisture observations into a land surface model (LSM). First, an observing system simulation experiment (OSSE) is carried out, where the true soil moisture is known, two types of model bias (i.e., constant and sinusoidal) are specified, and the bias error covariance matrix is assumed to be proportional to the model forecast error covariance matrix with a ratio λ. Second, a real assimilation experiment is carried out with measurements at a site over Northwest China. In the OSSE, the soil moisture estimation with the SepKF is improved compared with ensemble Kalman filter (EnKF) without the bias filter, because SepKF can properly correct the model bias, especially in the situation with a large model bias. However, the performance of SepKF becomes slightly worse if the constant model bias increases or temporal variability of the sinusoidal model bias becomes large. It is suggested that the ratio λ should be increased (decreased) in order to improve the soil moisture estimation if temporal variability of the sinusoidal model bias becomes high (low). Finally, the assimilation experiment with real observations also shows that SepKF can further improve the estimation of soil moisture profiles compared with EnKF without the bias correction. | Bangjun CAO Fuping MAO Shuwen ZHANG Shaoying LI Tian WANG | 2019 | Journal of Meteorological Research2019，33，3： | 1 |
| 8 | Sup- port vector novelty detection in hidden space 显示文摘 | ZHANG Li WANG Bangjun LI Fanzhang | 2011 | Jour- nal of Computational Information Systems2011，7，15： | 1 |
| 9 | Data-driven sensor placement for efficient thermal field reconstruction显示文摘Complete temperature field estimation from limited local measurements is widely desired in many industrial and scientific applications of thermal engineering. Since the sensor configuration dominates the reconstruction performance, some progress has been made in designing sensor placement methods. But these approaches remain to be improved in terms of both accuracy and efficiency due to the lack of comprehensive schemes and efficient optimization algorithms. In this work, we develop a datadriven sensor placement framework for thermal field reconstruction. Specifically, we first tailor the low-dimensional model from the prior thermal maps to represent the high-dimensional temperature distribution states by virtue of proper orthogonal decomposition technique. Then, on such subspace, a recursive greedy algorithm with determinant maximization as the objective function is developed to optimize the sensor placement configuration. Furthermore, we find that the same sensor configuration can be yielded faster by the standard procedures of column-pivoted QR factorization, which allows concise software implementation with readily available function packages. When the sensor locations are determined, we advocate using the databased closed-form estimator to minimize the reconstruction error. Real-time thermal monitoring on the multi-core processor is employed as the case to demonstrate the effectiveness of the proposed methods for thermal field reconstruction. Extensive evaluations are conducted on simulation or experimental datasets of three processors with different architectures. The results show that our method achieves state-of-the-art reconstruction performance while possessing the lowest computational complexity when compared with the existing methods. | LI BangJun LIU HaoRan WANG RuZhu | 2021 | Science China(Technological Sciences)2021，64，9： | 1 |
| 10 | China's Satellite Application Industry Developing Rapidly显示文摘The Chinese Government has already listed the satellite application as one of the important development areas of | By Wang Yusheng, Ge Bangjun, Yuan Jiangtao and Wu Jiyun | 2003 | Aerospace China2003，4，1： | 0 |
| 11 | Precise control of graphene etching by remote hydrogen plasma显示文摘Graphene with atomically smooth and configuration-specific edges plays the key role in the performance of graphene-based electronic devices.Remote hydrogen plasma etching of graphene has been proven to be an effective way to create smooth edges with a specific zigzag configuration.However,the etching process is still poorly understood.In this study,with the aid of a custom-made plasma-enhanced hydrogen etching(PEHE)system,a detailed graphene etching process by remote hydrogen plasma is presented.Specifically,we find that hydrogen plasma etching of graphene shows strong thickness and temperature dependence.The etching process of single-layer graphene is isotropic.This is opposite to the an isotropic etchi ng effect observed for bilayer and thicker graphe ne with an obvious depe ndence on temperature.On the basis of these observations,a geometrical model was built to illustrate the configuration evolution of graphene edges during etching,which reveals the origi n of the an isotropic etchi ng effect.By further utilizi ng this model,armchair graphe ne edges were also prepared in a con trolled manner for the first time.These investigations offer a better understanding of the etching process for graphene,which should facilitate the fabricati on of graphe ne?based electr onic devices with con trolled edges and the explorati on of more in teresti ng properties of graphe ne. | Bangjun Ma Shizhao Ren Peiqi Wang Chuancheng Jia Xuefeng Guo | 2019 | Nano Research2019，12，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员