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面向UHDTV的多分辨率视频显示质量评估研究

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液晶与显示 2016年第10期31卷 989-997页

作者：赵娜宋佳润邹文杰西安电子科技大学综合业务网理论及关键技术国家重点实验室陕西西安710071

超高清电视(UHDTV,Ultra High Definition TV)凭借其超高的屏幕分辨率可以更细腻地展现视频的内容,受到越来越多用户的青睐,然而目前超高清节目源发展有限,通常只能将低于超高清电视屏幕分辨率的视频经过插值后播放,这样处理可能会对用... 详细信息

超高清电视(UHDTV,Ultra High Definition TV)凭借其超高的屏幕分辨率可以更细腻地展现视频的内容,受到越来越多用户的青睐,然而目前超高清节目源发展有限,通常只能将低于超高清电视屏幕分辨率的视频经过插值后播放,这样处理可能会对用户主观体验带来一定的影响。如何准确评估UHDTV多分辨率视频源对视频显示质量的影响,对UHDTV业务的部署和优化起到指导性的作用。本文通过主观实验,利用SSIM算法预测视频源编码质量,并进一步分析视频源分辨率对UHDTV视频显示质量的影响,提出一种面向UHDTV的视频显示质量评估模型。实验结果表明,相比SSIM、VIFp和MOVIE三种经典的视频质量评估算法,本文模型所得视频显示质量和主观质量之间的皮尔森系数分别提高1.13%、1.89%和2.31%,斯皮尔曼等级相关系数分别提高1.35%、1.53%和2.24%,RMSE降低35.05%、36.94%和39.71%。所提模型可以更加准确地评价UHDTV视频显示质量。

关键词：超高清电视视频显示质量视频分辨率用户体验

Nano-mechanical and tribological properties of copper matrix composites reinforced by graphene nanosheets

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Progress in Natural Science:Materials International 2018年第4期28卷 416-421页

作者： Xiancong He Gaopeng zou Yongxiang Xu Haochun Zhu Hao jiang Xiaofan jiang Wei Xia Jingtao Chen jiawei Wu Shaofeng Yang jiangsu Key Laboratory of Advanced Structural Materials and Application Technology and School of Materials Science and Engineering Nanjing Institute of Technology

The impacts of graphene nanosheets content on microstructure, nano-mechanical and tribological properties of the copper matrix composites were investigated. The graphene nanosheets randomly distributed in copper matrix, which obviously hindered its grain growth. The elastic modulus and nano-hardness of the copper matrix composite with 0.2 wt% graphene nanosheets were enhanced 47.5% and 54.7% compared to these of pure copper, respectively. The average creep degree(5.1%) was lower than that(11.8%) of pure copper in holding stage. The creep rate(ca. 0.016 nm/s) decreased 10 times as that(ca. 0.16 nm/s) of pure copper in steady-state creep. The tribological performances were improved dramatically with increase of graphene nanosheets content.

关键词： Copper matrix composites Graphene nanosheets Nano-mechanical properties

Study on Adsorption of Formaldehyde by Modified Activated Carbon

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Meteorological and Environmental Research 2016年第2期7卷 31-32,35页

作者： zou Meiling zou Yiping Li Xueping Wang Linlin Department of Resources and Environment Binzhou University Department of Architectural Engineering Binzhou College

By using potassium permanganate impregnation method,common activated carbon was processed in 0. 079 mol/L KMnO4 solution at 650℃ to obtain modified activated carbon loaded with manganese oxide,and then different quantities of common activated carbon and modified activated carbon were used to adsorb 0. 3 mg/m^3 formaldehyde. The results showed that carbon and manganese atoms on the surface of modified activated carbon could adsorb formaldehyde,and the removal rate of 0. 3 mg/m^3 formaldehyde by 30 g of modified activated carbon reached 80%,increased one time compared with that by common activated carbon. Different amounts of activated carbon had various effects on the adsorption of formaldehyde,and the best usage of common activated carbon and modified activated carbon was 100 and 30 g respectively.

关键词： Modified activated carbon Formaldehyde MnOx Adsorption China

Assessment of strong earthquake risk in the Chinese mainland from 2021 to 2030

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Earthquake Research Advances 2023年第1期3卷 81-91页

作者： Zhigang Shao Yanqiang Wu Lingyun Ji Faqi Diao Fuqiang Shi Yujiang Li Feng Long Hui Zhang Wuxing Wang Wenxin Wei Peng Wang Xiaoxia Liu Qi Liu Zhengyang Pan Xiaofei Yin Yue Liu Wei Feng Zhenyu zou jia Cheng Renqi Lu Yueren Xu Xi Li Institute of Earthquake Forecasting China Earthquake AdministrationKey Laboratory of Earthquake ForecastingBeijing100036China The First Monitoring and Application Center China Earthquake AdministrationTianjin300180China The Second Monitoring and Application Center China Earthquake AdministrationXi'an710054China China University of Geosciences(Wuhan) Wuhan430074China Shaanxi Earthquake Agency Xi'an710068China National Institute of Natural Hazards Beijing100085China Sichuan Earthquake Administration Chengdu610044China Gansu Earthquake Agency Lanzhou730000China Institute of Geology China Earthquake AdministrationBeijing100029China Yunnan University Kunming650091China

The long-term earthquake prediction from 2021 to 2030 is carried out by researching the active tectonic block boundary zones in the Chinese *** on the strong earthquake recurrence model,the cumulative probability of each target fault in the next 10 years is given by the recurrence period and elapsed time of each fault,which are adopted from relevant studies such as seismological geology,geodesy,and historical earthquake *** on the long-term predictions of large earthquakes throughout the world,this paper proposes a comprehensive judgment scheme based on the fault segments with the seismic gap,motion strongly locked,sparse small-moderate earthquakes,and apparent Coulomb stress *** paper presents a comprehensive analysis of the relative risk for strong earthquakes that may occur in the coming 10 years on the major faults in the active tectonic block boundary zones in the Chinese *** present loading rate of each fault is first constrained by geodetic observations;the cumulative displacement of each fault is then estimated by the elapsed time since the most recent strong earthquake.

关键词： Long-term earthquake prediction Chinese mainland Active tectonic block

ON THE ELECTRIC NETWORK EXTENSION THEORY

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电子科学学刊(英文版) 1985年第4期2卷 279-292页

作者：邹谋炎 Beijing Research Institute of Remote sensing Equipments

An interesting topic in the network theory and practice is to investigate the properties of thenetworks undergoing some topological *** network extension theory relates to *** this paper,the basic idea and results of... 详细信息

关键词： topological NETWORK formulas return removed treating stabilization generating sequential nodal

Research on Teaching Practice System Based on BIM

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Journal of Architectural Research and Development 2022年第6期6卷 7-12页

作者： Yuqing Yang Lei zou Chongqing Energy College Chongqing 402260China

Building information modeling(BIM)course is a subject course integrating project management course and BIM ***-based engineering project teaching is different from traditional engineering project *** has many advantages such as information creation,information management,digital management of information sharing,and so on,which improves the integration of project management as a ***,it is crucial to improve the curriculum system of colleges and universities by setting up BIM courses,and to integrate BIM knowledge into the curriculum *** up BIM courses and integrating BIM knowledge into the curriculum system have also been the highlight for colleges and *** engineering management major of the university is combined with the BIM curriculum system to adjust the relevant talent training *** countries have gradually integrated BIM technology into the classroom teaching system,and domestic curriculum teaching is undergoing a reform and is under *** a systematic link between theory and practical education,a targeted,accurate,and efficient characteristic curriculum system for engineering management specialty has been developed.

关键词： BIM technology Course teaching:Practice system

The High Quantum Efficiency of Exponential-Doping AlGaAs/GaAs Photocathodes Grown by Metalorganic Chemical Vapor Deposition

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Chinese Physics Letters 2013年第4期30卷 88-91页

作者： ZHANG Yi-Jun ZHAO Jing zou Ji-Jun NIU Jun CHEN Xin-Long CHANG Ben-Kang Institute of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and TechnologyNanjing 210094 Engineering Research Center of Nuclear Technology Application(Ministry of Education East China Institute of TechnologyNanchang 330013

An exponential-doping structure is successfully applied to the preparation of AlGaAs/GaAs photocathodes through the metalorganic chemical vapor deposition(MOCVD)*** experimental results show that the quantum efficiency in the entire waveband region for the exponential-doping photocathodes grown by MOCVD is remarkably enhanced as compared to those grown by molecular beam *** a result of the improved built-in electric fields and cathode performance parameters,the photoemission characteristics for the MOCVD-grown transmission-mode and reflection-mode AlGaAs/GaAs photocathodes are different over the wavelength region of interest.

关键词： AlGaAs/GaAs MOCVD mode

Electroless copper plating process of N, N, N, N′-tetrakis (2-hydroxypropyl) ethylenediamine system with high plating rate

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Journal of Central South University of Technology 2005年第Z1期12卷 82-87页

作者： ZHENG Ya-jie zou Wei-hong YI Dan-qing GONG Zhu-qing LI Xin-hai School of Metallurgical Science and Engineering Central South University Changsha 410083 China School of Metallurgical Science and Engineering Central South University Changsha 410083 China School of Materials Science and Engineering Central South University Changsha 410083 China School of Metallurgical Science and Engineering Central South University Changsha 410083 China School of Metallurgical Science and Engineering Central South University Changsha 410083 China

Electroless copper plating process of N, N, N′, N′-tetrakis (2-hydroxypropyl)ethylenediamine(THPED) chelating agent was researched comprehensively. The results indicate that plating rate decreases with the 3H2O has a bad effect on deposits quality, but 2, 2′-dipyridyl and PEG make deposits quality improve greatly. Low concentration of 2-mercaptobenzothiozole (2-MBT) increases plating rate and improves deposits quality, but decreases plating rate and worsens deposits quality when 2-MBT reaches 5 mg/L. The optimal conditions of this electroless MBT are 16.8 g/L, 16.0 mL/L, 13.3 g/L, 0.5 g/L, 5.0 mg/L and 2.0 mg/L, respectively, pH value is 12.75,bath temperature is 30 ℃. Plating rate reaches 9.54 μm/h plating for 30 min in the bath. The SEM images demonstrate that the surface of copper film is smooth and the crystal is fine.

关键词： electroless copper plating plating rate N, N, N′, N′-tetrakis(2-hydroxypropl) ethylenediamine additive

Role of JWA in acute promye-locytic leukemia cell differentiation and apoptosis triggered by retinoic acid,12-tetradecanoylphorbol-13- acetate and arsenic trioxide

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Chinese Science Bulletin 2002年第10期47卷 834-838页

作者： CAO Haixia XIA Wei SHEN Qun LU Hua YE jian LI Aiping zou Changping ZHOU jianwei School of Public Health Nanjing Medical UniversityNanjing 210029China Department of Hematology and Oncology the Second Affiliate Hospital of Nanjing Medical University Deparcment of Hematology and Oncology the First Affiliate Hospital of Nanjing Medical UniversityNanjing 210029China Department of OB/GYN Gynecologic OncologyUT-Houston Medical SchoolHoustonTX 77030-4095USA

JWA, a cytoskeleton associated gene, was primarily found to be regulated by all trans-retinoic acid (ATRA), 13 cis-retinoic acid (13 cis-RA) and 12-tetradecano-ylphorbol-13-acetate (TPA). Our previous data showed that JWA might be involved in both cellular differentiation and apoptosis induced by several chemicals. In this study, we addressed the possible mechanism of JWA in the regulation of cell differentiation and apoptosis in NB4, a human acute promyelocytic leukemia cell line. CD11b/CD33 expression and cell cycle were analyzed for detecting of cell differentiation and apoptosis. Both reverse-transcription polymerase chain reaction (RT-PCR) and Western blot assays were used for understanding the expressions of JWA. The results showed that under the indicated concentrations ATRA (10-6 mol/L) and As2O3 (10-6 mol/L) induced cell differentiation and apoptosis separately; while both 4HPR (10-6mol/L) and TPA (10-7 mol/L) showed dual-directional effects on NB4 cells, they not only trigger cells’

关键词： JWA cell differentiation apoptosis NB4 signal trans-duction.