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| 1 | Enhanced piezo-response in copper halide perovskites based PVDF composite films显示文摘In-situ fabricated perovskite nanocrystals in polymeric matrix provide new generation composite materials for plenty of cutting edge technology. In this work, we report the in-situ fabrication of copper halide perovskite(MA_2CuCl_4, MA:CH_3NH_3^+) embedded poly(vinylidene fluoride)(PVDF) composite films. The optimized MA_2CuCl_4/PVDF composite films exhibit greatly enhanced piezo-response in comparasion with pure PVDF films. The enhancements were invesitgated and explained by applying piezo-response force microscopy(PFM) measurements and density functional theory(DFT) caculations. We proposed that the high piezoelectric properties of MA_2CuCl_4/PVDF composite films could be related to the large Cu off-centering displacement, the strong interactions between MA_2CuCl_4 and PVDF as well as large stress concentration around the MA_2CuCl_4 particles in the films. These piezoelectric composite films are expected to be suitable functional materials for flexible and/or wearable piezoelectrics. | Sheng Huang Gang Tang Hailong Huang Xian-gang Wu Puming Zhou Lin Zou Lei Xie Jianming Deng Xueyun Wang Haizheng Zhong Jiawang Hong | 2018 | Science Bulletin2018,63,19: | 4 |
| 2 | The Msi1-mTOR pathway drives the pathogenesis of mammary and extramammary Paget’s disease显示文摘Mammary and extramammary Paget’s Diseases(PD)are a malignant skin cancer characterized by the appearance of Paget cells.Although easily diagnosed,its pathogenesis remains unknown.Here,single-cell RNA-sequencing identified distinct cellular states,novel biomarkers,and signaling pathways—including mTOR,associated with extramammary PD.Interestingly,we identified MSI1 ectopic overexpression in basal epithelial cells of human PD skin,and show that Msi1 overexpression in the epidermal basal layer of mice phenocopies human PD at histopathological,single-cell and molecular levels.Using this mouse model,we identified novel biomarkers of Paget-like cells that translated to human Paget cells.Furthermore,single-cell trajectory,RNA velocity and lineage-tracing analyses revealed a putative keratinocyte-to-Paget-like cell conversion,supporting the in situ transformation theory of disease pathogenesis.Mechanistically,the Msi1-mTOR pathway drives keratinocyte-Paget-like cell conversion,and suppression of mTOR signaling with Rapamycin significantly rescued the Paget-like phenotype in Msi1-overexpressing transgenic mice.Topical Rapamycin treatment improved extramammary PD-associated symptoms in humans,suggesting mTOR inhibition as a novel therapeutic treatment in PD. | Yongli Song Christian F.Guerrero-Juarez Zhongjian Chen Yichen Tang Xianghui Ma Cong Lv Xueyun Bi Min Deng Lina Bu Yuhua Tian Ruiqi Liu Ran Zhao Jiuzhi Xu Xiaole Sheng Sujuan Du Yeqiang Liu Yunlu Zhu Shi-jun Shan Hong-duo Chen Yiqiang Zhao Guangbiao Zhou Jianwei Shuai Fazheng Ren Lixiang Xue Zhaoxia Ying Xing Dai Christopher J.Lengner Bogi Andersen Maksim V.Plikus Qing Nie Zhengquan Yu-Show | 2020 | Cell Research2020,30,10: | 2 |
| 3 | DELAUNAY-BASED SURFACE RECONSTRUCTION ALGORITHM IN REVERSE ENGINEERING显示文摘Triangulation of scattered points is the first important section during reverse engineering. New concepts of dynamic circle and closed point are put forward based on current basic method. These new concepts can narrow the extent which triangulation process should seek through and optimize the triangles during producing them. Updating the searching edges dynamically controls progress of triangulation. Intersection judgment between new triangle and produced triangles is changed into intersection judgment between new triangle and searching edges. Examples illustrate superiorities of this new algorithm. | Tian Xiaodong Zhou Xionghui Ruan XueyuNational Die & Mould CAD Engineering Research Center, Shanghai Jiaotong University,Shanghai 200030, China | 2002 | Chinese Journal of Mechanical Engineering2002,15,3: | 2 |
| 4 | Influence of Flange Location on Axial Deformation Stability of Double-hat Structure显示文摘 | Wu Xueyun Xia Yong Zhou Qing | 2012 | Journal of Beiiing Insti- tute of Technology2012,21,1: | 1 |
| 5 | Grain size dependence of coercivity in magnetic metal-insulator nanogranular films with u- niaxial magnetic anisotropy 显示文摘 | Yao Dongsheng Ge Shihui Zhou Xueyun Zuo Huaping | 2010 | Journal of Applied Physics2010,107,07: | 1 |
| 6 | Study on microstructure and soft magnetism of ( Fe65 Co35 ) x ( SiO2 ) l - x nano-granular films with very high ferromagnetic resonance frequency显示文摘 | Dongsheng Yao Shihui Ge Xueyun Zhou | 2010 | Physica B : Condensed Matter2010,405,13: | 1 |
| 7 | A hybrid model for short-term rainstorm forecasting based on a back-propagation neural network and synoptic diagnosis显示文摘暴雨是我国最重要的自然灾害之一.大量的研究表明,暴雨的频率和强度在全球变暖的背景下正在逐年增强.但是如何成功的预测短期暴雨,特别是发生在复杂地形下的暴雨,仍然是一个巨大的挑战.本项研究采用BP神经网络和天气学诊断相结合的方法,探索了一种四川盆地西部复杂地形下的暴雨预报模型.该模型有效改善了喇叭口地形下,受低层偏东风影响的暴雨预报准确性.机器学习与天气学理论的结合,提升了模型的物理基础和预测成功率,同时该方法也为发展具有本地特征的暴雨预报客观工具,提供了一定的参考价值. | Guolu Gao Yang Li Jiaqi Li Xueyun Zhou Ziqin Zhou | 2021 | Atmospheric and Oceanic Science Letters2021,14,5: | 1 |
| 8 | Breeding of interactive Genio Male stereile line 88-1A in Chinese cabbage显示文摘 | Zhang Shufang Zhao Xueyun Zhou Bangfu | 1993 | Acta Horticulturae1993,,6: | 1 |
| 9 | Robust decentralized adaptive output feedback fuzzy controller design and application to AHS显示文摘A novel decentralized indirect adaptive output feedback fuzzy controller is developed for a class of large-scale uncertain nonlinear systems using error filtering.By the properly filtering of the observation error dynamics,the strictly positive-real condition is guaranteed to hold such that the proposed output feedback and adaptation mechanisms are practicable in practice owing to the fact that its implementation does not require the observation error vector itself any more,which corrects the impracticable schemes in the previous literature involved.The presented control algorithm can ensure that all the signals of the closed-loop large-scale system keep uniformly ultimately bounded and that the tracking error converges to zero asymptotically.The decentralized output feedback fuzzy controller can be applied to address the longitudinal control problem of a string of vehicles within an automated highway system(AHS) and the effectiveness of the design procedure is supported by simulation results. | Yishao Huang Dequn Zhou Xiaoxin Chen Xueyun Chen Zhengwu Wang | 2010 | Journal of Systems Engineering and Electronics2010,21,5: | 0 |
| 10 | Stress compensation based on interfacial nanostructures for stable perovskite solar cells显示文摘The long-term stability issue of halide perovskite solar cells hinders their commercialization.The residual stress-strain affects device stability,which is derived from the mismatched thermophysical and mechanical properties between adjacent layers.In this work,we introduced the Rb_(2)CO_(3)layer at the interface of SnO_(2)/perovskite with the hierarchy morphology of snowflake-like microislands and dendritic nanostructures.With a suitable thermal expansion coefficient,the Rb_(2)CO_(3)layer benefits the interfacial stress relaxation and results in a compressive stress-strain in the perovskite layer.Moreover,reduced nonradiative recombination losses and optimized band alignment were achieved.An enhancement of open-circuit voltage from 1.087 to 1.153 V in the resultant device was witnessed,which led to power conversion efficiency(PCE)of 22.7%(active area of 0.08313 cm^(2))and 20.6%(1 cm2).Moreover,these devices retained 95%of its initial PCE under the maximum power point tracking(MPPT)after 2700 h.It suggests inorganic materials with high thermal expansion coefficients and specific nanostructures are promising candidates to optimize interfacial mechanics,which improves the operational stability of perovskite cells. | Cheng Zhu Xi Wang Hangxuan Li Chenyue Wang Ziyan Gao Pengxiang Zhang Xiuxiu Niu Nengxu Li Zipeng Xu Zhenhuang Su Yihua Chen Huachao Zai Haipeng Xie Yizhou Zhao Ning Yang Guilin Liu Xueyun Wang Huanping Zhou Jiawang Hong Xingyu Gao Yang Bai Qi Chen | 2023 | Interdisciplinary Materials2023,2,2: | 0 |
| 11 | Deep learning-based subseasonal to seasonal precipitation prediction in southwest China:Algorithm comparison and sensitivity to input features显示文摘The prediction of precipitation at subseasonal to seasonal(S2S)timescales remains an enormous challenge because of the gap between weather and climate predictions.This study compares three deep learning algorithms,namely,the long short-term memory recurrent(LSTM),gated recurrent unit(GRU),and recurrent neural network(RNN),and selects the optimal algorithm to establish an S2S precipitation prediction model.The models were evaluated in four subregions of the Sichuan Province:the Plateau,Valley,eastern Basin,and western Basin.The results showed that the RNN model had better performance than the LSTM and GRU models.This could be because the RNN model had an advantage over the LSTM model in the transformation of climate indices with positive and negative variations.In the validation of test datasets,the RNN model successfully predicted the precipitation trend in most years during the wet season(May-October).The RNN model had a lower prediction bias(within±10%),higher sign accuracy of the precipitation trend(~88.95%),and greater accuracy of the maximum precipitation month(>0.85).For the prediction of different lead times,the RNN model was able to provide a stable trend prediction for summer precipitation,and the time correlation coefficient score was higher than that of the National Climate Center of China.Furthermore,this study proposed a method to measure the sensitivity of the RNN model to different input features,which may provide unprecedented insights into the nonlinear relationship and complicated feedback process among climate systems.The results of the sensitivity distribution are as follows.First,the Niño 4 and Niño 3.4 indices were equally important for the prediction of wet season precipitation.Second,the sensitivity of the snow cover on the Tibetan Plateau was higher than that in the Northern Hemisphere.Third,an opposite sensitivity appeared in two different patterns of the Indian Ocean and sea ice concentrations in the Arctic and the Barents Sea. | GuoLu Gao Yang Li XueYun Zhou XiaoMing Xiang JiaQi Li ShuCheng Yin | 2023 | Earth and Planetary Physics2023,7,4: | 0 |
| 12 | Intratumoural microbiota:a new frontier in cancer development and therapy显示文摘Human microorganisms,including bacteria,fungi,and viruses,play key roles in several physiological and pathological processes.Some studies discovered that tumour tissues once considered sterile actually host a variety of microorganisms,which have been confirmed to be closely related to oncogenesis.The concept of intratumoural microbiota was subsequently proposed.Microbiota could colonise tumour tissues through mucosal destruction,adjacent tissue migration,and hematogenic invasion and affect the biological behaviour of tumours as an important part of the tumour microenvironment.Mechanistic studies have demonstrated that intratumoural microbiota potentially promote the initiation and progression of tumours by inducing genomic instability and mutations,affecting epigenetic modifications,promoting inflammation response,avoiding immune destruction,regulating metabolism,and activating invasion and metastasis.Since more comprehensive and profound insights about intratumoral microbiota are continuously emerging,new methods for the early diagnosis and prognostic assessment of cancer patients have been under examination.In addition,interventions based on intratumoural microbiota show great potential to open a new chapter in antitumour therapy,especially immunotherapy,although there are some inevitable challenges.Here,we aim to provide an extensive review of the concept,development history,potential sources,heterogeneity,and carcinogenic mechanisms of intratumoural microorganisms,explore the potential role of microorganisms in tumour prognosis,and discuss current antitumour treatment regimens that target intratumoural microorganisms and the research prospects and limitations in this field. | Yaqi Cao Hui Xia Xueyun Tan Chunwei Shi Yanling Ma Daquan Meng Mengmeng Zhou Zhilei Lv Sufei Wang Yang Jin | 2024 | Signal Transduction and Targeted Therapy2024,9,2: | 0 |
| 13 | Application of the Network Flow Method for Eigenvalue Control in Power System Dispatch显示文摘A kind of dispatch method for power system eigenvalue control is proposed-in this paper. With the help of this method, not only the low-frequency oscillation of a power system can be prevented and controlled, but also the probabilistic power oscillatoin on the interconnection lines of an interconnected power system can be reduced. The proposed method has the advantages of high calculation speed and good convergency. Therefore, the method has much prospect of on-line application. | Zhang Lizi Chen Xueyun Liu Zhou (Department of Electrical Engineering) | 1990 | 哈尔滨工业大学学报1990,22,3: | 0 |