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Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl_(2) salts

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Journal of Iron and Steel Research International 2023年第8期30卷 1537-1549页

作者： Hai-liang Zhang Ling-xu Yang Qian Wang jiang-tao wu Suo-de Zhang Chao-liu Zeng Institute of Metal Research Chinese Academy of SciencesShenyang 110016LiaoningChina School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016LiaoningChina Songshan Lake Materials Laboratory Dongguan 523808GuangdongChina School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051LiaoningChina

Hot corrosion behaviors of the 921A alloy and Fe-based amorphous coating induced by KCl-10% ZnCl_(2) and KCl-55% ZnCl_(2) salts at 450℃ in air for 40 h were *** show that the 921A alloy suffers more serious corrosion damage than the coating and KCl-55% ZnCl_(2) salts are more corrosive than KCl-10% ZnCl_(2) *** the two salts,an Fe_(2)O_(3) layer is formed on the 921A alloy surface,while an outer Fe-rich oxide layer and an inner Cr-rich oxide layer are formed on the surface of the ***,a certain amount of metal chloride can be found at the oxide/alloy(coating)interface,which can be explained by "active oxidation".However,the corrosion resistance of the Fe-based amorphous coating did not achieve the desired results,probably because the intersplats in the coating serve as corrosion diffusing channels,which facilitate the corrosion damage ***,the coating is still in amorphous state after hot corrosion exposure.

关键词： Hot corrosion Chloride deposit 921A alloy Fe-based amorphous coating Waste-to-energy plant

Metallic ureteral stent in restoring kidney function: Nine case reports

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World Journal of Clinical Cases 2020年第13期8卷 2841-2848页

作者： Wei Gao Tong-Wen Ou Xin Cui jiang-tao wu Bo Cui Department of Urology Xuanwu HospitalCapital Medical UniversityBeijing 100053China

BACKGROUND Retroperitoneal fibrosis is an exceptionally rare disease characterized by proliferation of fibrous tissue and inflammation in the *** features many symptoms in the kidneys and in other organs and usually leads to ureteral *** SUMMARY Here we present 9 consecutive cases of idiopathic retroperitoneal fibrosis(IRPF)in patients who presented to the Department of Nephrology or Department of Rheumatology,Xuanwu Hospital,Capital Medical University,Beijing,China,between January 2012 and June 2017 with ureteral obstruction due to external compression of the ureter that led to hydronephrosis and kidney *** tomography imaging was used to identify hydronephrosis and ureteral obstruction and to evaluate kidney *** patient was diagnosed with IRPF based on clinical observation and computed tomography examination *** restore kidney function,a retrograde metallic stent was placed in the ureter under X-ray guidance 2 d after each patient’s *** perioperative complications occurred in any patient,but postoperative complications occurred in two patients as follows:Patient 2 had stent migration and repeated metallic stent infections that resolved with treatment;and patient 4 had postoperative hematuria because he resumed normal activities too soon after stent placement(contrary to instruction).Placement of the metallic ureteral stents provided relief from ureteral obstruction and restored kidney function in all *** Our 9-case series underscores the utility and efficacy of applying the Resonance®metallic ureteral stent to treat ureteral obstruction in patients with *** all retroperitoneal fibrosis cases in our series,ureteral stents provided effective relief and were shown to reduce the incidence rate of perioperative and postoperative complications.

关键词： Retroperitoneal fibrosis Metallic ureteral stent Ureteral obstruction Computed tomography Kidney function Plastic stent Case report

Functional localization of the cortical motor area in the brain Electrocorticogram analysis

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Neural Regeneration Research 2010年第19期5卷 1480-1485页

作者： tao jiang Xiaoming wu Binggang Ye Sijuan Huang School of Bioscience & Bioengineering South China University of Technology Guangzhou 510006 Guangdong Province China

The method for rapidly, precisely and non-invasively localizing functional regions of the brain is a problem in neuromedicine research. Cortical electrostimulation is the optimal localization method during brain surgery, with a degree of accuracy of approximately 5 mm. However, electrostimulation can damage the cerebral cortex, trigger epilepsy, and extend the operation time. Studies are required to determine whether cortical motor regions can be localized by wavelet analysis from electrocorticograms. In this study, based on wavelet analysis of electrocorticograms, a selection of algorithms for classification of the mu rhythm in the motor regions utilizing experimental data was verified. Results demonstrated that a characteristic quantity of energy ratio in the reconstructed signal was filtered in the d6 （7.81-15.62 Hz） band prior to and following motion events. A characteristic threshold was considered to be 40%. The accuracy of localization detection was 93%. The degree of accuracy was less than 5 mm. The present study avoided the problems of cerebral cortex injury and epilepsy onset, with an operation time of 60 seconds. Therefore, wavelet analysis on electrocorticogram is feasible for localizing cortical motor regions. Furthermore, this localization technique is accurate, safe and rapid.

关键词： functional localization electrocorticogram mu rhythm event-related desynchronization wavelet analysis neural regeneration

Gut microbiota shifts in hepatitis B-related portal hypertension after transjugular intrahepatic portosystemic shunt:Mechanistic and clinical implications

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World Journal of Gastroenterology 2025年第3期31卷 134-137页

作者： Qi-Rong jiang Da-wu Zeng Department of Hepatology Hepatology Research InstituteThe First Affiliated HospitalFujian Medical UniversityFuzhou 350005Fujian ProvinceChina Department of Infectious Diseases The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350004Fujian ProvinceChina

In this article,we provide commentary on the recent article by Zhao et *** focus on the shifts in the gut microbiota of patients with hepatitis B virus(HBV)-associated cirrhosis/portal hypertension(PH)following transjugular intrahepatic portosystemic shunt(TIPS)and the implications for understanding the mechanisms,diagnosis,and *** comparing the gut microbiota composition and dynamic changes before and after TIPS in patients with and without hepatic encephalopathy,the authors found an increase in non-probiotic bacteria in those who developed hepatic encephalopathy post-TIPS,with Morganella species present only in the hepatic encephalopathy *** gut microbiota changes post-TIPS among patients without the occurrence of hepatic encephalopathy suggest potential therapeutic benefits through prophylactic microbiome ***,the specific gut microbiota alterations may hold promise to predict the risk of hepatic encephalopathy in individuals undergoing TIPS for HBVrelated *** these promising findings,future studies are needed to address limitations,including a small sample size,a relatively short evaluation period for gut microbiota alterations,the absence of data on dynamic alterations in gut microbiota post-TIPS and their correlation with blood ammonia levels,and the lack of validation in animal *** conclusion,Zhao et al's study has shed new light on the link of gut microbiota with post-TIPS hepatic encephalopathy,potentially through the intricate gut-liver axis,and has important clinical implications for improving the management of patients with HBV-related PH.

关键词： Hepatitis B virus Cirrhosis Portal hypertension Hepatic encephalopathy Transjugular intrahepatic portosystemic shunt Gut microbiota

光滑楔形通道径向末端射流冲击冷却换热特性研究

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推进技术 2016年第12期37卷 2320-2328页

作者：关江涛邓宏武李洋崔欣超北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室北京100191 先进航空发动机协同创新中心北京100191

为了研究在旋转状态下射流冲击冷却在楔形通道径向末端的冷却效果,在主流通道进口雷诺数为15000、旋转数为0或0.1的工况下,实验研究了不同射流孔位置、射流流量条件下的楔形通道沿程壁面换热规律。研究结果表明:射流孔附近的通道壁面换... 详细信息

为了研究在旋转状态下射流冲击冷却在楔形通道径向末端的冷却效果,在主流通道进口雷诺数为15000、旋转数为0或0.1的工况下,实验研究了不同射流孔位置、射流流量条件下的楔形通道沿程壁面换热规律。研究结果表明:射流孔附近的通道壁面换热系数被极大地增强,但冷却效果被限制在一定范围内;射流对通道内侧的影响范围要大于中部和外侧,但增大射流流量并不会增加内侧的换热系数;旋转工况下,射流影响区的换热对比静止基本上没有变化;在本实验工况下,射流不能强化沿通道径向射流孔后侧位置的换热;不同工况下的通道整体平均换热在10%以内,末端射流冲击对通道整体换热影响有限。

关键词：叶片冷却楔形通道射流对流换热冲击冷却

Hydrodynamic Instabilities Driven by Acid-base Neutralization Reaction in Immiscible System

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Chinese Journal of Chemical Physics 2010年第5期23卷 513-520,621页

作者： Asad Ahemd 杨雅辉柴川吴江涛西安交通大学动力工程及多相流国家重点实验室西安710049

The hydrodynamic instabilities driven by an acid-base neutralization reaction, in contact along a plane interface, placed in a Hele-Shaw cell under the gravitational field are reported. The system consists of the heavier aqueous tetramethyle-ammonium hydroxide below the lighter layer of organic phase with propionic acid as reacting specie. The effect of chemical composition on hydrodynamic instabilities during interfacial mass transfer accompanied by a neutralization reaction is investigated. Depending on the initial concentration of the reacting species, Marangoni convection in the form of roll ceils or trains of waves is observed. Mach- Zehnder interferometer is used to measure the change in base concentration at the time of instability formation. The results show that the instabilities resulted from the convection flow are more efficient to the mechanism of mass transfer and can drastically alter pattern formation in the system.

关键词： Fluid dynamics Convective transport Diffusion Interface Mass transfer Chemical reactor

高应变速率下钛-钢复合板界面组织特征及变形机制

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工程科学学报 2017年第7期39卷 1070-1076页

作者：江海涛吴波张韵徐慧慧田世伟北京科技大学工程技术研究院北京100083

在高应变速率下,钛-钢复合板不同材料以不同的变形机制协调变形,结合界面起到至关重要的作用.本文分析研究了高应变速率下钛-钢复合板的界面组织特征和变形机制.结果表明:在钢侧,随着应变速率的提高,小角度(3°~10°)晶界含量增多,织构... 详细信息

在高应变速率下,钛-钢复合板不同材料以不同的变形机制协调变形,结合界面起到至关重要的作用.本文分析研究了高应变速率下钛-钢复合板的界面组织特征和变形机制.结果表明:在钢侧,随着应变速率的提高,小角度(3°~10°)晶界含量增多,织构组分{112}〈241〉逐渐演变为织构{665}〈386〉和{111}〈110〉.在钛侧,随着应变速率的提高,出现了明显的形变孪晶组织,三种形变孪晶如{1121}〈1100〉拉伸孪晶、{1122}〈1123〉压缩孪晶和{1012}〈1011〉拉伸孪晶产生的难易程度不一样,变形机制由常规的"孪生变形为主"转变为"位错滑移与孪生变形共存"的复合变形模式.在结合界面处,随着应变速率的提高,需要适应由两侧产生的不同变形抗力,才能够实现连续变形而不致使材料发生破坏,其主要的协调机制依靠结合界面及附近晶粒的滑移实现变形.

关键词：钛-钢复合板高应变速率微观组织晶体取向变形机制

地下连续墙施工技术在地铁车站工程中的应用分析

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工程建设与设计 2021年第23期 197-199页

作者：江武涛福州地铁集团有限公司福州350000

随着城市交通体系建设的发展,很多大中型城市加大了在地铁工程建设方面的投入,地铁工程建设不仅完善了城市现有交通体系,而且缓解了城市内部的交通压力。由于地铁车站建设环境复杂且技术标准高,地下连续墙在深基坑的施工中得到了广泛应... 详细信息

随着城市交通体系建设的发展,很多大中型城市加大了在地铁工程建设方面的投入,地铁工程建设不仅完善了城市现有交通体系,而且缓解了城市内部的交通压力。由于地铁车站建设环境复杂且技术标准高,地下连续墙在深基坑的施工中得到了广泛应用,基于此,论文结合地铁深基坑工程特点,详细分析了在地铁车站工程中的地下连续墙施工技术应用,对地铁工程深基坑施工具有一定的技术指导意义。

关键词：地铁车站工程地下连续墙施工技术

Glycolytic dysregulation in Alzheimer's disease:unveiling new avenues for understanding pathogenesis and improving therapy

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Neural Regeneration Research 2025年第8期20卷 2264-2278页

作者： You wu Lijie Yang Wanrong jiang Xinyuan Zhang Zhaohui Yao Department of Geriatrics Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Alzheimer's disease poses a significant global health challenge owing to the progressive cognitive decline of patients and absence of curative *** current therapeutic strategies,primarily based on cholinesterase inhibitors and N-methyl-Daspartate receptor antagonists,offer limited symptomatic relief without halting disease progression,highlighting an urgent need for novel research directions that address the key mechanisms underlying Alzheimer's *** studies have provided insights into the critical role of glycolysis,a fundamental energy metabolism pathway in the brain,in the pathogenesis of Alzheimer's *** in glycolytic processes within neurons and glial cells,including microglia,astrocytes,and oligodendrocytes,have been identified as significant contributors to the pathological landscape of Alzheimer's *** changes impact neuronal health and function,thus offering promising targets for therapeutic *** purpose of this review is to consolidate current knowledge on the modifications in glycolysis associated with Alzheimer's disease and explore the mechanisms by which these abnormalities contribute to disease onset and *** focus on the pathways through which glycolytic dysfunction influences Alzheimer's disease pathology should provide insights into potential therapeutic targets and strategies that pave the way for groundbreaking treatments,emphasizing the importance of understanding metabolic processes in the quest for clarification and management of Alzheimer's disease.

关键词： Alzheimer’s disease glial cells glycolysis neuronal metabolism pathogenesis therapeutic targets