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Validation and accuracy analysis of wind products from scatterometer onboard the HY-2B satellite

Acta Oceanologica Sinica 2023年第2期42卷 74-82页

作者： Sheng Yang Bo Mu haoqiang shi Chaofei Ma Wu Zhou Juhong Zou Mingsen Lin National Satellite Ocean Application Service Ministry of Natural ResourcesBeijing100081China Key Laboratory of Space Ocean Remote Sensing and Application Ministry of Natural ResourcesBeijing100081China China Academy of Space Technology(Xi’an Branch) Xi’an710100China

The Chinese marine dynamic environment satellite HY-2B was launched in October 2018 and carries a Ku-band scatterometer.This paper focuses on the accuracies of HY-2B scatterometer wind data during the period from November 2018 to May 2021.The HY-2B wind data are validated against global moored buoys operated by the U.S.National Data Buoy Center and Tropical Atmosphere Ocean,numerical model data by the National Centers for Environmental Prediction,and the Advanced Scatterometer data issued by the Remote Sensing System.The results showed that the wind speeds and directions observed by the HY-2B scatterometer agree well with these buoy wind measurements.The root-mean-squared errors(RMSEs)of the HY-2B wind speed and direction are 0.74 m/s and 11.74°,respectively.For low wind speeds(less than 5 m/s),the standard deviation of the HY-2B-derived wind direction is higher than 20°,which implies that the HY-2B wind direction for low wind speeds is less accurate than that for moderate to high wind speed ranges.The RMSE of the HY-2B wind speed is slightly larger in high latitude oceans(60°–90°S and 60°–90°N)than in low latitude regions.Furthermore,the dependence of the residuals on the cross-track location of wind vector cells and the stability of the HY-2B scatterometer wind products are discussed.The wind stability assessment results indicate that a clear yearly oscillation is observed for the HY-2B wind speed bias which is due to seasonal weather variations.In general,the accuracy of HY-2B winds meets the operational precision requirement and is consistent with other wind data.

关键词： sea surface wind validation microwave remote sensing scatterometer

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LSTM based prediction algorithm and abnormal change detection for temperature in aerospace gyroscope shell

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International Journal of Intelligent Computing and Cybernetics 2019年第2期12卷 274-291页

作者： haoqiang shi Shaolin Hu Jiaxu Zhang School of Automation and Information Engineering Xi’an University of TechnologyXi’anChina Automation School Guangdong University of Petrochemical TechnologyMaomingChina

Purpose–Abnormal changes in temperature directly affect the stability and reliability of a gyroscope.Predicting the temperature and detecting the abnormal change is great value for timely understanding of the working state of the gyroscope.Considering that the actual collected gyroscope shell temperature data have strong non-linearity and are accompanied by random noise pollution,the prediction accuracy and convergence speed of the traditional method need to be improved.The purpose of this paper is to use a predictive model with strong nonlinear mapping ability to predict the temperature of the gyroscope to improve the prediction accuracy and detect the abnormal change.Design/methodology/approach–In this paper,an double hiddenlayer long-shortterm memory(LSTM)is presentedto predicttemperature data for the gyroscope(including singlepoint andperiod prediction),and the evaluation index of the prediction effect is also proposed,and the prediction effects of shell temperature data are compared by BP network,support vector machine(SVM)and LSTM network.Using the estimated value detects the abnormal change of the gyroscope.Findings–By combined simulation calculation with the gyroscope measured data,the effect of different network hyperparameters on shell temperature prediction of the gyroscope is analyzed,and the LSTM networkcan beusedto predictthe temperature(timeseriesdata).Bycomparingthe performance indicatorsof different prediction methods,the accuracy of the shell temperature estimation by LSTM is better,which can meet the requirements of abnormal change detection.Quick and accurate diagnosis of different types of gyroscopefaults(stepsanddrifts)can beachievedbysettingreasonabledatawindowlengthsandthresholds.Practicalimplications–The LSTMmodelisa deepneuralnetworkmodelwithmultiplenon-linearmapping levels,and can abstract the input signal layer by layer and extract features to discover deeper underlying laws.The improved method has been used to solve the problem of strong non-linearity and random noise pollutionin time

关键词： Gyroscope LSTM Temperature prediction Recurrent neural network Abnormal change detection

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Universal selenium nanoadjuvant with immunopotentiating and redox-shaping activities inducing high-quality immunity for SARS-CoV-2 vaccine

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Signal Transduction and Targeted Therapy 2023年第3期8卷 921-923页

作者： haoqiang Lai Ligeng Xu Chang Liu Sujiang shi Yalin Jiang Yangyang Yu Bo Deng Tianfeng Chen Department of Oncology The First Affiliated HospitalDepartment of ChemistryJinan UniversityGuangzhou 510632China

Dear Editor,The COVID-19 pandemic still greatly threatens the public health worldwide and novel vaccines to highly effectively combat SARS-CoV-2 remains an unmet clinical need.However,redox imbalance in immune cells under extra stimulation by vaccine or pathogens greatly dampens the quality of the induced immunity.1 In addition,people infected with COVID-19 that characterized by immune system malfunction were also approved to be attributed by the robust oxidative stress.

关键词： immunity vaccine stimulation

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体育景观研究述评:概念、指标、功能与启示

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湖北体育科技 2024年第3期43卷 25-33页

作者：石开棋王雷孙浩强任江南赵钰洁西南大学体育学院重庆400715 贵阳学院体育学院贵州贵阳550005

体育景观具有促进体育参与、创新城市发展和推动经济增长等作用,为加快建设体育强国、广泛开展全民健身提供了重要的实践抓手。运用文献资料法、逻辑分析法对全球范围内体育景观相关研究成果进行整理、分析和归纳。研究认为:1)体育景观... 详细信息

体育景观具有促进体育参与、创新城市发展和推动经济增长等作用,为加快建设体育强国、广泛开展全民健身提供了重要的实践抓手。运用文献资料法、逻辑分析法对全球范围内体育景观相关研究成果进行整理、分析和归纳。研究认为:1)体育景观是指人为创造并具有美学特征,能够促进体育参与、创造情感体验和表现社会文化的运动空间;2)体育场馆是最具有代表性和典型性的体育景观,其内部与外部的景观因素对体育赛事及相关经济活动具有重要影响,当前体育场馆景观因素评价指标分为质量指标与氛围指标;3)体育景观能够提升民众参与体育活动积极性、改善城市形象,助推经济发展、丰富体育文化的表达的多重功能;4)加强体育景观理论研究和实践开发与利用,对建设高质量体育公园和推动体育强国建设具有重要价值。

关键词：体育景观体育强国体育场馆全民健身

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Research on development of in situ titanium matrix composites and in situ reaction thermodynamics of the reaction systems

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Journal of University of Science and Technology Beijing 2006年第6期13卷 551-557页

作者： Lifang Cai Yongzhong Zhang Likai shi haoqiang Yang Mingzhe Xi National Engineering Research Center for Nonferrous Metal Composites General Research Institute for Nonferrous Metals Beijing 100088 China

The in situ synthesis method for titanium matrix composites （TMCs） has obvious technical and economical advantages over other traditional methods. Ultrafine reinforcement particles were formed in situ by chemical reaction between elements or between elements and compounds. Using the approach, contamination at the composite matrix/reinforcement particle interface did not occur, interface bonding was good, and the reinforcement particle was thermodynamically stable. The stage of development of the preparation process for in situ TMCs as well as the thermodynamic analysis of the possible in situ reaction systems was described.

关键词： in situ titanium matrix composites reaction synthesis reaction system thermodynamic analysis

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Effects of Cr and Al Contents on the Preparation of SiC Fiber-Reinforced NiCrAl Alloy Matrix Composite

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Acta Metallurgica Sinica(English Letters) 2020年第10期33卷 1416-1422页

作者： haoqiang Zhang Xixi Niu Zhiliang Pei Nanlin shi Jun Gong Chao Sun Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China

In this work,the effects of Cr and Al contents on the preparation of SiC fiber-reinforced NiCrAl alloy matrix composites(SiCf/Ni-20Cr-5Al,SiCf/Ni-15Cr-5Al,SiCf/Ni-10Cr-5Al and SiCf/Ni-10Cr-3Al)were thoroughly discussed.The composites were prepared by vacuum hot pressing process using matrix-coated fibers.It was found that Cr solute atoms played a significant role in retarding the recrystallization of NiCrAl alloy matrix,and the Al elements in the form of γ'-Ni3Al phase had a suppression effect on the plastic flow of the matrix.Therefore,the reduction in Cr and Al contents was conductive to the recrystallization and plastic flow of NiCrAl alloy matrix,thereby reduced the size and number of micro-voids in the composite.In addition,this work provides some guidance for designing and manufacturing reasonable SiC fiber-reinforced Ni alloy matrix composites.

关键词： SiC fiber NiCrAl alloy Composite Recrystallization Plastic flow

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An effective strategy towards construction of CVD SiC fiber-reinforced superalloy matrix composite

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Journal of Materials Science & Technology 2020年第14期47卷 179-185页

作者： haoqiang Zhang Lin Liu Zhiliang Pei Nanlin shi Jun Gong Chao Sun Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

In this work,a modified approach for preparing CVD SiC fiber-reinforced superalloy matrix composites was rationally developed.The composites were fabricated by vacuum hot pressing(VHP)process using precursor wires coated with(Al+Al2O3)diffusion barrier layers and GH4169 superalloy coatings.BNi-7 brazing filler metals were introduced on the surface of precursor wires in order to decrease the temperature of the VHP process.It was found that the VHP temperature was reduced by about 100℃,and the melting,diffusion,nucleation and growth processes of BNi-7 fillers at 900?C motivated the recrystallization and plastic flow of the matrix under the increasing pressure,thereby a compact composite composed of intact SiC fibers and fine equiaxial grain structure superalloy matrix was achieved.Meanwhile,the elements were distributed homogeneously among the fibers in the composite and no interfacial reactions occurred.This method provides a new insight for designing and manufacturing high-quality composites in practical engineering.

关键词： SiC fiber Superalloy Diffusion barrier Brazing filler metal

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Measurement of interfacial residual stress in SiC fiber reinforced Ni-Cr-Al alloy composites by Raman spectroscopy

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Journal of Materials Science & Technology 2019年第1期35卷 88-93页

作者： Xixi Niu haoqiang Zhang Zhiliang Pei Nanlin shi Chao Sun Jun Gong Institute of Metal Research Chinese Academy of Sciences University of Chinese Academy of Sciences School of Materials Science and Engineering University of Science Technology of China

Raman spectroscopy was used to measure Raman spectra of the inner SiC fibers and surface C-rich layers of SiC fibers, composite precursors and SiCf/Ni-Cr-Al composites. The residual stresses of the inner SiC fibers and surface C-rich layers were calculated, and the effect of the(Al + Al_2O_3) diffusion barrier layer on the interfacial residual stress in the composites was analyzed in combination with the interface microstructure and energy disperse spectroscopy(EDS) elements lining maps. The results show that the existence of(Al + Al_2O_3) diffusion barrier improves the compatibility of the SiCf/Ni-Cr-Al interface,inhibits the adverse interfacial reaction, and relieves the residual stress inside SiC fibers and at the interface of composite material. Heat treatment can reduce the residual stress at the interface. As the heat treatment time increases, the residual stress at the interface decreases.

关键词： Ni-Cr-Al alloy SiC fiber Composite Raman spectra Diffusion barrier coating Residual stress

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Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database

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Asian Journal of Urology 2015年第2期2卷 63-69页

作者： Kaiwen Li Tianxin Lin 无 Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang haoqiang shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang Department of Urology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhouChina Chinese Bladder Cancer Consortium Department of Urology Renji HospitalShanghai Jiaotong University School of MedicineShanghaiChina Department of Urology Fujian Medical University Union HospitalFuzhouChina Department of Urology General Hospital of Ningxia Medical UniversityYinchuanChina Department of Urology Peking University Third HospitalBeijingChina Department of Urology The First Affiliated Hospital of Anhui Medical UniversityHefeiChina Department of Urology The Xinjiang Uygur Autonomous Region People’s HospitalUygurChina Department of Urology The First Affiliated Hospital of Fujian Medical UniversityFuzhouChina Department of Urology The First Affiliated Hospital of Guangxi Medical UniversityNanningChina Department of Urology Southwest HospitalThird Military Medical UniversityChongqingChina Department of Urology Daping HospitalThird Military Medical UniversityChongqingChina Department of Urology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina Department of Urology The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina Department of Urology Peking University First HospitalBeijingChina Department of Urology The First Affiliated Hospital of Zhejiang UniversityHangzhouChina Department of Urology China Japan Friendship Hospital of Jilin UniversityChangchunChina Department of Urology Beijing Friendship HospitalCapital Medical UniversityBeijingChina Department of Urology Wuhan General Hospital of Guangzhou MilitaryWuhanChina Department of Urology The First Affiliated Hospital of Shanxi UniversityTaiyuanChina Department of Urology Qilu Hospital of Shandong UniversityJinanChina Department of Urology West China HospitalSichuan UniversityChengduChina Department of Urology The Second Affiliated Hospital of Tianjin Medical UniversityTianjinChina Department of Urology Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China.

关键词： Bladder cancer Diagnosis Treatment

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开展药学科普,关注合理用药

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上海医药 2022年第17期43卷 1-3页

作者：石浩强卞晓岚上海交通大学医学院附属瑞金医院药剂科上海200025

药学知识的科学普及有助于加强公众的合理用药意识。药学科普工作是我国药学服务转型的重要方向之一。本文论述药学科普的特点、载体发展及其对医院药师的要求,总结既往经验,以期进一步推动药学科普的形式创新、内容创新,使之对公众日... 详细信息

药学知识的科学普及有助于加强公众的合理用药意识。药学科普工作是我国药学服务转型的重要方向之一。本文论述药学科普的特点、载体发展及其对医院药师的要求,总结既往经验,以期进一步推动药学科普的形式创新、内容创新,使之对公众日常用药起到正向引导作用,切切实实地提高公众的安全、合理用药素养。

关键词：药学科普合理用药新媒体

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