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蒸养条件下硅灰对钢渣-水泥基材料力学性能和耐久性能的影响

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武汉理工大学学报 2024年第4期46卷 1-7页

作者：康俊涛杨永生武汉理工大学土木工程与建筑学院武汉430070

为研究蒸养条件下硅灰对钢渣-水泥基材料力学性能和耐久性能的影响,通过试验测试了不同硅灰掺量的钢渣-硅灰-水泥复合材料的抗压强度、抗折强度、干缩性能、抗氯离子渗透性和抗冻性能。试验结果表明:蒸汽养护对钢渣-硅灰-水泥复合材料... 详细信息

为研究蒸养条件下硅灰对钢渣-水泥基材料力学性能和耐久性能的影响,通过试验测试了不同硅灰掺量的钢渣-硅灰-水泥复合材料的抗压强度、抗折强度、干缩性能、抗氯离子渗透性和抗冻性能。试验结果表明:蒸汽养护对钢渣-硅灰-水泥复合材料的力学性能和耐久性能有负面影响;复掺硅灰对钢渣-水泥基材料的力学性能、抗氯离子渗透性和抗冻性能有正面影响,对干缩性能有负面影响。蒸养条件下,相较于单掺30%钢渣,复掺2%~10%硅灰后:胶砂28 d抗压强度增加6.8%~25.5%,6%为硅灰最佳掺量;胶砂干缩率增加3.4%~32.6%,干缩率随硅灰掺量增加而增大;混凝土氯离子扩散系数降低12.2%~84.3%,100次冻融循环后的相对动弹性模量增加23.3%~39.9%,抗氯离子渗透性和抗冻性能随硅灰掺量增加而提高,但硅灰掺量超过6%后,性能提升有限。

关键词：钢渣-水泥基材料蒸养条件硅灰力学性能耐久性能

Recent advances in promising drugs for primary prevention of gastroesophageal variceal bleeding with cirrhotic portal hypertension

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Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 4-13页

作者： Ji-Yao sheng Zi-Fan Meng Qiao Li yong-sheng yang Department of Hepatobiliary and Pancreatic Surgery the Second Hospital of Jilin UniversityChangchun 130041China Jilin Engineering Laboratory for Translational Medicine of Hepatobiliary and Pancreatic Diseases the Second Hospital of Jilin UniversityChangchun 130041China

Background:Gastroesophageal variceal bleeding is one of the most severe complications of patients with *** primary prevention drugs,including non-selectiveβ-blockers,have effectively reduced the incidence of bleeding,their efficacy is limited due to side effects and related *** recent advances in precision medicine,precise drug treatment provides better treatment *** sources:Literature search was conducted in PubMed,MEDLINE and Web of Science for relevant articles published up to May *** on clinical trials was obtained from https://***/and http://***/.Results:The in-depth understanding of the pathogenesis and advances of portal hypertension has enabled the discovery of multiple molecular targets for promising *** to the site of action,these drugs could be classified into four classes:intrahepatic,extrahepatic,both intrahepatic and extrahepatic targets and *** these classes of drugs offer advantages over traditional treatments in prevention of gastroesophageal variceal bleeding in patients with cirrhotic portal ***:This review classified and summarized the promising drugs,which prevent gastroesophageal variceal bleeding by targeting specific markers of pathogenesis of portal hypertension,demonstrating the significance of using the precision medicine strategy to discover and develop promising drugs for the primary prevention of gastroesophageal variceal bleeding in patients with cirrhotic portal hypertension.

关键词： Cirrhotic portal hypertension Target drug Primary prevention Bleeding

Severe congenital hemolytic anemia caused by a novel compound heterozygous PKLR gene mutation in a Chinese boy

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Chinese Medical Journal 2019年第1期132卷 92-95页

作者： Peng-Peng Liu Hu-Qing Ding Shen-Zhen Huang sheng-yong yang Ting Liu Department of Hematology Hematologic Research LaboratoryWest China Hospital of Sichuan University.ChengduSichuan 610041China Sichuan Hua Xi Kindstar Medical Diagnostic Centre ChengduSichuan 610000China State Key Laboratory of Cancer Biotherapy Sichuan UniversityChengduSichuan 610041China

To the Editor:Congenital hemolytic anemia (CHA) can be caused by the defect of any component in red blood cell (RBC),including hemoglobinopathies,membrane and cytoskeleton defects,and metabolic enzymopathies *** it is... 详细信息

关键词： Chinese boy PKLR gene mutation Severe congenital hemolytic anemia

Construction of Chiral One-dimensional Chains via Mononuclear Chiral Precursors and Circular Dichroism Properties

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Chinese Journal of Structural Chemistry 2021年第6期40卷 767-774,685页

作者： JU Hai-Yan yang Ming ZHANG Gang LIU De-Zheng yang yong-sheng ZHANG Yan-Bo School of Chemistry and Engineering Wuhan Textile UniversityWuhan 430073China Hubei Key Laboratory of Biomass Fibers and Eco-dyeing&Finishing Wuhan Textile UniversityWuhan 430073China Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle Hubei University of Arts and ScienceXiangyang 441053China

One-dimensional(1D)chiral chain complexes[CuLSCu(Pydc)](2S)and[CuLRCu(Pydc)](2R)(LS=(E)-3-(((1S,2S)-2-(((E)-3-oxo-3-(4-pyridin-4-yl)phenyl)propylidene)amono)-1,2-diphenyl)imino)-1-(4-(py-ridi-4-yl)phenyl)butan-1-one)and LR=(E)-3-(((1R,2R)-2-(((E)-3-oxo-3-(4-pyridin-4-yl)phenyl)propyli-dene)amono)-1,2-diphenyl)imino)-1-(4-(pyridi-4-yl)phenyl)butan-1-one and Pydc=2,6-pyridinedicarboxylic acid)have been synthesized vis mononuclear chiral enantiomer precursors CuLS(1S)and CuLR(1R).Their different chiral configurations of 1S,1R,2S and 2R were determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses,infrared spectra(IR),powder X-ray diffraction(PXRD),thermal gravimetric analyses(TGA)and circular dichroism spectra(CD).

关键词： mononuclear chiral precursors 1D chiral chain circular dichroism spectra

Changes in global land surface frozen ground and freeze-thaw processes during 1950-2020 based on ERA5-Land data

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Advances in Climate Change Research 2024年第2期15卷 265-274页

作者： yong yang Ren-sheng CHEN yong-Jian DING Hong-Yuan LI Zhang-Wen LIU Qilian Alpine Ecology and Hydrology Research Station Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 73000China State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 73000China Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection College of Resources and EnvironmentLinyi UniversityLinyi 276000China

Frozen ground(FG)plays an important role in global and regional climates and environments through changes in land freeze-thaw processes,which have been conducted mainly in different ***,the changes in land surface freeze-thaw processes under climate change on a global scale are still *** on ERA5-Land hourly land skin temperature data,this study evaluated changes in the global FG area,global land surface first freeze date(FFD),last freeze date(LFD)and frost-free period(FFP)from 1950 to *** results show that the current FG areas(1991-2020 mean)in the Northern Hemisphere(NH),Southern Hemisphere(SH),and globe are 68.50×10^(6),9.03×10^(6),and 77.53×10^(6)km^(2),which account for 72.4%,26.8%,and 60.4%of the exposed land(excluding glaciers,ice sheets,and water bodies)in the NH,SH and the globe,respectively;further,relative to 1951-1980,the FG area decreased by 1.9%,8.8%,and 2.8%,*** FG at lower latitudes degrades to intermittently FG,and intermittently FG degrades to non-frozen ground,which caused the global FG boundary to retreat to higher latitudes from 1950 to *** annual FG areas in the NH,SH,and globe all show significant decreasing trends(p<0.05)from 1950 to 2020 at-0.32×10^(6),-0.22×10^(6),and-0.54×10^(6)km^(2)per decade,*** FFP prolongation in the NH is mainly influenced by LFD advance,while in the SH it is mainly controlled by FFD *** prolongation trend of FFP in the NH(1.34 d per decade)is larger than that in the SH(1.15 d per decade).

关键词： Frozen ground Freeze-thaw processes Frost-free period First freeze date Global warming

A Redundant Adaptive Robust Filtering Algorithm Based On Cubature Kalman Fliter 25th

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A Redundant Adaptive Robust Filtering Algorithm Based On Cub...

Feedback processing in the primate brain and in AI systems

第25届中国控制与决策会议

作者： Wan Shuo yang yong sheng Jing Zhongliang The schools of Aeronautics and Astronautics Shanghai Jiaotong University

ISBN: (纸本)9781467355339

In this paper, A novel nonlinear state estimation algorithm called redundant adaptive robust filter （RARCKF） is proposed for the state estimation of the maneuvering target in which the square-root of the cubature kalman filter （SRCKF）, like the other traditional Gaussian domain Bayesian filters, cannot achieve high accuracy of state estimation when it suffers from long-standing model errors or the model of the system takes rapid and abrupt unknown changes. As a result of using RARCKF, the algorithm can make sure the validity of the filter while in the case of the model prediction suffers with long-standing errors or the target takes maneuvering. Simulation results in the section 4 indicate RARCKF outperforms over the SRCKF both in the numerical accuracy and the convergence rate.

关键词： Square-root cubature Kalman filter Non-linear filter Redundant adaptive robust filter Maneuvering target

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Science China(Technological Sciences) 2024年第8期67卷 2297-2309页

作者： JIANG yong HE sheng Institute of Biophysics Chinese Academy of SciencesBeijing 100101China Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230088China University of Chinese Academy of Sciences Beijing 100049China

The primate brain and artificial intelligence(AI) can both be conceptualized as information processing systems, each with its own distinct biological and computational architectures. While there are parallels between them, their respective structural and functional connections show significant differences. In this paper, we examine the central role of feedback processing in both the primate brain and AI systems, which has been shown to be crucial in shaping neural processing. By reviewing the key features of feedback processes in the primate brain, which allows the brain to incorporate prior knowledge, contextual information, and taskdemands into early-stage processing, we highlight the divergence in goals and functions between biological and AI *** these differences is crucial for elucidating the cognitive capabilities of the primate brain and for addressing computational challenges in AI. In advocating “Cognition-Inspired-Computation”, we suggest that integrating insights from feedback processing in the primate brain into AI research will offer potentially significant improvements for the advancement of AI systems.

关键词： cognitive neuroscience artificial intelligence feedback processing attention learning

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Effect of cooling method on TiN precipitation behavior of high-titanium high-strength steel during solidification

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Journal of Iron and Steel Research International 2024年第7期31卷 1692-1703页

作者： Xue-jian Zhang Guang-wei yang yong Wan yong-hong Wen Chuan-sheng Tang Ming-qi Liu Li-jie Tian Key Laboratory of Metallurgical Emission Reduction and Resources Recycling Anhui University of TechnologyMa'anshan 243002AnhuiChina School of Metallurgical Engineering Anhui University of TechnologyMa'anshan 243002AnhuiChina Baosteel Central Research Institute Baoshan Iron and Steel Co.Ltd.Shanghai 201999China

Metallographic microscopy,scanning electron microscopy and TiN growth thermodynamic and kinetic equations were used to investigate the morphology,quantity,and size of TiN in the center of high-titanium high-strength steels under different solidification cooling *** results showed that TiN in the center of the experimental steels mainly existed in three forms:single,composite(Al2O3-TiN),and multi-particle *** began precipitating at around 1497℃(solidification fraction of 0.74).From the end of melting to solidification for 180 s,the cooling rates in the center of the experimental steels for furnace cooling,air cooling,refractory mold cooling,and cast iron mold cooling tended to stabilize at 0.17,0.93,1.65,and 2.15℃/s,*** size of TiN in the center of the experimental steel cooled using furnace cooling was mainly concentrated in the 5-15 pm *** contrast,the size of TiN in the center of the experimental steels cooled using air cooling,refractory mold cooling,and cast iron mold cooling were mainly concentrated in the 1-5 pm *** addition,their density of TiN in the center of the experimental steels is signif-icantly higher than that of the furnace-cooled experimental *** and kinetic precipitation models of TiN established predicted the growth size of TiN in a high-titanium high-strength steel when the solidification cooling rates are not below 0.93℃/s.

关键词： High-titanium steel Cooling method TiN Thermodynamics Kinetics

Coupled dynamic response analysis of multi-column floating offshore wind turbine with low center of gravity

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Journal of Ocean Engineering and Science 2024年第1期9卷 25-39页

作者： Jie yang Yan-ping He yong-sheng Zhao Xiao-yan yang Guo-rong Zhang State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE) Shanghai Jiao Tong UniversityShanghai 200240China School of Naval Architecture Ocean&Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Faculty of Maritime and Transportation Ningbo UniversityNingbo 315211China

To realize the application of the floating offshore wind turbine(FOWT)from deep to relatively shallow waters,a new concept of multi-column floating wind turbine platform with low center of gravity(CG)is designed and *** multi-column low CG platform is designed to support a 6MW wind turbine class and operated at a water depth of 50m in the South China *** frequency domain software WADAM and time domain software NREL-FAST are used to simulate coupled dynamic responses of the floating wind turbine system with second-order wave loads *** dynamic behaviors of multi-column low CG FOWT system under normal operation and parked conditions are *** influence of second-order wave force on the motion responses of the multi-column platform,fore-aft force and moment of the tower base and mooring force are researched *** results demonstrate that the coupled dynamic responses at rated operating condition and extreme condition meet the normal operating requirements and extreme survival requirements of FOWT system in the shallow water(50m)of South China *** addition,it is found that,the wave frequency response gradually replaces the second-order low frequency response as the main influencing factor of the coupled dynamic response of the FOWT system with the increasing severity of the sea ***,in general,the magnitude of second-order low frequency response increases with the increasing severity of the design load ***,in the subsequent design of the shallow water FOWT system,the second-order effects should be paid enough attention.

关键词： Floating offshore wind turbine Multi-column platform Second-order wave force Concept design Coupled dynamic response