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Effects of diurnal adjustment on biases and trends derived from inter-sensor calibrated AMSU-A data

Frontiers of Earth Science 2018年第1期12卷 1-16页

作者： H. CHEN x. zou Z. QIN Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Colorado CO 80309 USA Earth System Science Interdisciplinary Center (ESSIC) University of Maryland College Park Maryland MD 20742 USA Joint Center for Data Assimilation Research and Applications Nanjing University of Information Science and Technology Nanjing 210044 China

Measurements of brightness temperatures from Advanced Microwave Sounding Unit-A （AMSU-A） temperature sounding instruments onboard NOAA Polar- orbiting Operational Environmental Satellites （POES） have been ex.ensively used for studying atmospheric temperature trends over the past several decades. Inter- sensor biases, orbital drifts and diurnal variations of atmospheric and surface temperatures must be considered before using a merged long-term time series of AMSU-A measurements from NOAA- 15, - 18, - 19 and MetOp-A. We study the impacts of the orbital drift and orbital differences of local equator crossing times （LECTs） on temperature trends derivable from AMSU-A using near-nadir observa- tions from NOAA-15, NOAA-18, NOAA-19, and MetOp-A during 1998 - 2014 over the Amazon rainforest. The double difference method is firstly applied to estimation of inter-sensor biases between any two satellites during their overlapping time period. The inter-calibrated observations are then used to generate a monthly mean diurnal cycle of brightness temperature for each AMSU-A channel. A diurnal correction is finally applied each channel to obtain AMSU-A data valid at the same local time. Impacts of the inter-sensor bias correction and diurnal correction on the AMSU-A derived long-term atmospheric temperature trends are separately quantified and compared with those derived from original data. It is shown that the orbital drift and differences of LECT among different POESs induce a large uncertainty in AMSU-A derived long-term warming/cooling trends. After applying an inter-sensor bias correction and a diurnal correction, the warming trends at different local times, which are approx.mately the same, are smaller by half than the trends derived without applying these corrections.

关键词： AMSU-A diurnal adjustment decadal tem-perature trend

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关于纽约世界贸易中心双子塔倒塌的分析和教训

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地震工程与工程振动 2006年第3期26卷 31-33页

作者： Patrick x.W.zou 唐嘉敏季静 Faculty of the Built Environment The University of New South WalesSydney 2052Australia 华南理工大学建筑学院广东广州510640

本文不仅从纽约世界贸易中心双子塔的结构体系、施工技术、防火工程的角度以及火灾中结构所处的状态对倒塌的原因进行深入的分析,并且在建筑必将倒塌的前提下提出一些关于如何提高在高层建筑火警中的救援效率的建议。

关键词：世贸中心双子塔倒塌结构体系防火措施

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Max.mal Power Point Tracking under Speed-Mode Control for Wind Energy Generation System with Doubly Fed Introduction Generator

Maximal Power Point Tracking under Speed-Mode Control for Wi...

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CES/IEEE 5th International Power Electronics and Motion Control Conference

作者： Y. Zhao x. D. zou Y. N. x. Y. Kang and J. Chen Huazhong University of Science and Technology / Electrical and Electronic College Wuhan China Hubei University of Technology / School of Electrical and Electronic Engineering Wuhan China

＜正＞The Doubly Fed Induction Generator （DFIG） with back-to-back four-quadrant converters between its rotor winding and the grid can realize the max.mal wind energy capture in variable-speed wind energy generation system. Based on the stator flux.oriented ex.itation vector control strategy, this paper presents that the system dynamic characteristics under speed-mode control are superior to the dynamic characteristics under current-mode control in the process of Max.mum Power Point Tracking （MPPT） and brings forward the ex.lanation based on state space theory. And it designs the gains of two typical PI controllers in the current inner loop and the speed outer loop under speed-mode control based on Internal Model Control （IMC） theory and pole assignment method, respectively. At last, simulation results in MATLAB/ SIMULINK are put forward to verify the good static and dynamic performance of the designed closed-loop control system.

关键词： Doubly Fed Induction Generator (DFIG) current-mode control speed-mode control PI controller Internal Model Control (IMC) pole assignment

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Study on the Erbium Strengthened Aluminum Alloy

Study on the Erbium Strengthened Aluminum Alloy

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2006 Beijing International Conference on Aluminum Materials(2006 BICAM)

作者： Z.R. Nie, B.L. Li, W. Wang, T.N. Jin, H. Huang, H.M. Li, J. x. zou and T.Y. Zuo College of Materials Science and Engineering, Beijing University of Technology, Beijng 100022, China

We have systemically studied the effect of the erbium on the microstructure and the mechanical properties in the 5x.x.series aluminum alloys by using optical microscope, transmission electron microscope (TEM) and by tensile testing. The results demonstrate that the tensile strength increased quickly at the beginning of small contents of 0.1 %Er both in the hot and cold rolled states, then slowly increased with increasing the contents of Er until 0.4%, at which the best balance of the strength and ductility (438MPa and 9.6%) were obtained. Microstructure observation in the hot rolled state was indicated that the grain structure in the Er free Al-5Mg alloy revealed fully recrystallized grain structure, while in the Al-5Mg containing Er was demonstrated deformation structure, indicating the Er addition delayed the recrystallization behavior by the formation of the precipitation of the Al3Er, which confirmed by means of the x.ray diffraction analysis. Furthermore in the TEM microstructure observation the precipitation of Al3Er was distributed both in the grain interior and subgrain or grain boundaries, which could be pinning the subgrain or grain boundary migration and dislocation movement as well. Consequently the beginning of the recrystallization temperature in the Al-5Mg containing Er was elevated about 50℃ than in Al-5Mg without Er. This could be ex.lained that the strength increased without the deterioration of the ductility was attributed to the microstructure refinement by the Er addition.

关键词： Er alloying Grain refinement AI3Er Mechanical property

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Termination of polymorphic ventricular tachycardia storm by catheter ablation in a patient with cardiomyopathy induced by incessant idiopathic left ventricular tachycardia

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南京医科大学学报（自然科学版） 2007年第10期27卷 1105-1105页

作者： Shan, Q. J. Chen, M. L. x., D. x. zou, J. G. Yang, B. Chen, C. Cao, K. J. Nanjing Med Univ Affiliated Hosp 1 Dept Cardiol Nanjing 210029 Peoples R China.

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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping Lin Jun x. Delong Jiang Jiayang Hou Ying Liang Zhongyue zou x.esong Mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanx. Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in ex.sting research for battery SOH estimation, these methods often ex.ibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, ex.sting ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Lithium-ion battery State-of-health estimation Data-driven Machine learning Ensemble learning Ensemble diversity

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Effect of lamellarization on the microstructure and mechanical properties of marine 10Ni5CrMoV steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 402-413页

作者： Tao zou Yanwu Dong Zhouhua Jiang Shuyang Du Yushuo Li School of Metallurgy Northeastern UniversityShenyang 110819China Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Northeastern UniversityShenyang 110819China

Multistage heat treatment involving quenching(Q),lamellarizing(L),and tempering(T)is applied to marine 10Ni5CrMoV *** microstructure and mechanical properties were studied by multiscale characterizations,and the kinetics of reverse austenite transformation,strain hardening behavior,and toughening mechanism were further *** lamellarized specimens possess low yield strength but high toughness,especially cryogenic *** leads to the development of film-like reversed austenite at the martensite block and lath boundaries,refining the martensite structure and lowering the equivalent grain *** analysis of austenite reversion based on the JMAK model shows that the isothermal transformation is dominated by the growth of reversed austenite,and the max.mum transformation of reversed austenite is reached at the peak temperature(750℃).The strain hardening behavior based on the modified Crussard-Jaoul analysis indicates that the reversed austenite obtained from lamellarization reduces the proportion of martensite,significantly hindering crack propagation via martensitic transformation during the *** a consequence,the QLT specimens ex.ibit high machinability and low yield *** with the QT specimen,the ductile-brittle transition temperature of the QLT specimens decreases from-116 to-130℃due to the low equivalent grain size and reversed austenite,which increases the cleavage force required for crack propagation and absorbs the energy of ex.ernal load,*** work provides an idea to improve the cryogenic toughness of marine 10Ni5CrMoV steel and lays a theoretical foundation for its industrial application and comprehensive performance improvement.

关键词： 10Ni5CrMoV steel lamellarizing reversed austenite cryogenic toughness ductile-brittle transition temperature

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Induced neural stem cells regulate microglial activation through Akt-mediated upregulation of Cx.R4 and Crry in a mouse model of closed head injury

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Neural Regeneration Research 2025年第5期20卷 1416-1430页

作者： Mou Gao Qin Dong Dan zou Zhijun Yang Lili Guo Rux.ang x. Department of Neurosurgery Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan ProvinceChina Department of Neurosurgery Chinese PLA General HospitalBeijingChina Department of Neurology Fu Xing HospitalCapital Medical UniversityBeijingChina

Microglial activation that occurs rapidly after closed head injury may play important and complex.roles in neuroinflammation-associated neuronal damage and *** previously reported that induced neural stem cells can modulate the behavior of activated microglia via Cx.L12/Cx.R4 signaling,influencing their activation such that they can promote neurological ***,the mechanism of Cx.R4 upregulation in induced neural stem cells remains *** this study,we found that nuclear factor-κB activation induced by closed head injury mouse serum in microglia promoted Cx.L12 and tumor necrosis factor-αex.ression but suppressed insulin-like growth factor-1 ***,recombinant complement receptor 2-conjugated Crry(CR2-Crry)reduced the effects of closed head injury mouse serum-induced nuclear factor-κB activation in microglia and the levels of activated microglia,Cx.L12,and tumor necrosis factor-α.Additionally,we observed that,in response to stimulation(including stimulation by Cx.L12 secreted by activated microglia),Cx.R4 and Crry levels can be upregulated in induced neural stem cells via the interplay among Cx.L12/Cx.R4,Crry,and Akt signaling to modulate microglial *** agreement with these in vitro ex.erimental results,we found that Akt activation enhanced the immunoregulatory effects of induced neural stem cell grafts on microglial activation,leading to the promotion of neurological recovery via insulin-like growth factor-1 secretion and the neuroprotective effects of induced neural stem cell grafts through Cx.R4 and Crry upregulation in the injured cortices of closed head injury ***,these beneficial effects of Akt activation in induced neural stem cells were positively correlated with the therapeutic effects of induced neural stem cells on neuronal injury,cerebral edema,and neurological disorders post–closed head *** conclusion,our findings reveal that Akt activation may enhance the immunoregulatory effects of induced neura

关键词： Akt signaling cerebral edema closed head injury Crry Cx.R4 induced neural stem cell microglia neuroinflammation

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Visible-light-responsive homologous heterostructure of ox.nitrides constructed to boost charge separation and water splitting

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Science China Chemistry 2025年第01期 186-191页

作者： Hai zou Yunfeng Bao x.eshang x.n Yu Qi Tengfeng x.e Fux.ang Zhang State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences School of Chemistry and Chemical Engineering Liaoning Normal University College of Chemistry Jilin University

Constructing type II heterostructures represents a widely recognized strategy for enhancing charge separation and photocatalytic efficiency,but it remains challenging to fabricate homologous heterostructures based on visible-light-responsive semiconductors,especially for popularly investigated （ox.）nitrides with low thermal ***,we synthesized a homologous heterostructure （denoted as YTON＿H） based on the ox.nitrides of YTaO4-x.yand YTa *** heterostructure ex.ibits type II band structure alignment and intimate interface achieved through a magnesium （Mg） powder-assisted nitridation *** with widely reported heterologous heterostructures,the as-obtained YTON＿H homologous heterostructure could similarly ex.ibit enhanced charge separation as well as photocatalytic water splitting performance with respect to its counterparts(YTaO4-x.yand YTaON2).Meanwhile,detailed structural characterizations and spectroscopy analysis have been made to confirm the formation of heterostructure and promotion of spatial charge separation.

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Tag recommendation for open source software

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Frontiers of Computer Science 2014年第1期8卷 69-82页

作者： Tao WANG Huaimin WANG Gang YIN Charles x. LING x.ao LI Peng zou National Laboratory for Parallel and Distributed Processing College of Computer Department of Computer Science The University of Western Ontario London N6A5B7 Canada Academy of Equipment Beijing 101400 China

Nowadays open source software becomes highly popular and is of great importance for most software engi- neering activities. To facilitate software organization and re- trieval, tagging is ex.ensively used in open source communi- ties. However, finding the desired software through tags in these communities such as Freecode and ohloh is still chal- lenging because of tag insufficiency. In this paper, we propose TRG （tag recommendation based on semantic graph）, a novel approach to discovering and enriching tags of open source software. Firstly, we propose a semantic graph to model the semantic correlations between tags and the words in software descriptions. Then based on the graph, we design an effec- tive algorithm to recommend tags for software. With com- prehensive ex.eriments on large-scale open source software datasets by comparing with several typical related works, we demonstrate the effectiveness and efficiency of our method in recommending proper tags.

关键词： open source software semantic graph tag rec-ommendation

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