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Effect of temperature and reaction path interaction on fluidization reduction kinetics of iron ore powder

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Journal of Iron and Steel Research International 2024年第8期31卷 1840-1849页

作者： Guo-min Zhu Ming-wei Hu An-nan Dou jin-yu huang jing Ding Qi-yan Xu School of Metallurgical Engineering Anhui University of TechnologyMa'anshan 243002AnhuiChina

Due to the instability of FeO at temperatures below 843 K,the fuidization reduction pathway of iron ore powder changes with the reduction ***,the effect of temperature and reaction pathway interaction on the kinetics of fuidization reduction of iron ore powder under low-temperature conditions ranging from 783 to 903 K was investigated to describe the fluidization reduction rate of iron ore powder from three aspects:microstructure change,reaction limiting link,and apparent activation energy of the reaction,exploring their internal *** experimental results revealed that in a temperature range of 783-813 K,the formation of a dense iron layer hindered the internal diffusion of reducing gas,resulting in relatively high gas diffusion *** addition,due to the differences in limiting links and reaction pathways in the intermediate stage of reduction,the apparent activation energy of the reaction *** apparent activation energy of the reaction ranged from 23.36 to 89.13 kJ/mol at temperature ranging from 783 to 813 K,while it ranged from 14.30 to 68.34 kJ/mol at temperature ranging from 873 to 903 K.

关键词： Reaction limiting link Gas internal diffusion Interface reaction Apparent activation energy Iron ore powder Reaction pathway Fluidization reduction

Application of CRT-D in a Marfan syndrome patient with chronic heart failure accompanied by ventricular tachycardia and ventricular fibrillation

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第8期14卷 759-762页

作者： Hai-ying XU Yi-zhou XU Feng LING Zhong yu Jun YANG Xu DUAN Bei WANG jin-yu huang Department of Cardiology Hangzhou First People's Hospital Department of Cardiac Ultrasound Hangzhou First People's Hospital

Marfan syndrome is a systemic connective tissu disease that could affect the cardiovascular system and eventually lead to heart enlargement an heart failure with high mortality, mainly due t progressive heart failure and/or sudden cardia death caused by malignant arrhythmia. Here w report that a patient received a cardiac resyn chronization therapy-defibrillator (CRT-D) with pre-monitor function for heart failure and ex perienced obvious improvements in his cardia function. Postoperative follow-up showed that th patient had reduced morbidity and hospitalizatio for heart failure, and also experienced improve quality of life.

关键词：治疗学组织疗法医学临床

Role of micronutrients in Alzheimer's disease:Review of available evidence

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World Journal of Clinical Cases 2022年第22期10卷 7631-7641页

作者： Hong-Xin Fei Chao-Fan Qian Xiang-Mei Wu yu-Hua Wei jin-yu huang Li-Hua Wei Department of Pathology Guangxi University of Science and TechnologyLiuzhou 545000Guangxi Zhuang Autonomous RegionChina Department of Neurology The First Affiliated Hospital of Guangxi University of Science and TechnologyLiuzhou 545000Guangxi Zhuang Autonomous RegionChina

Alzheimer's disease(AD)is one of the most common age-related neurodegenerative disorders that have been studied for more than 100 *** an increased level of amyloid precursor protein is considered a key contributor to the development of AD,the exact pathogenic mechanism remains *** factors are related to AD,such as genetic factors,aging,lifestyle,and *** epidemiological and clinical evidence has shown that the levels of micronutrients,such as copper,zinc,and iron,are closely related to the development of *** this review,we summarize the roles of eight micronutrients,including copper,zinc,iron,selenium,silicon,manganese,arsenic,and vitamin D in AD based on recently published studies.

关键词： Alzheimer’s disease Iron Micronutrient Zinc

Effects of preoperative ketamine on the endocrine-metabolic and inflammatory response to laparoscopic surgery

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Chinese Medical Journal 2011年第22期124卷 3721-3725页

作者： DU jin huang yu-guang yu Xue-rong ZHAO Na Department of Anaesthesiology Subei People＇s Hospital Yangzhou University Yangzhou Jiangsu 225001 China

Background Ketamine is hypothesized to reduce perioperative endocrine-metabolic and inflammatory responses in cardiac surgery patients. This randomized, placebo-controlled, double-blind study was performed to determine whether perioperative endocrine-metabolic and inflammatory responses are attenuated by preoperative administration of ketamine to healthy females receiving elective laparoscopic surgery. Methods Forty female patients with American Society of Anesthesiologist classification Ⅰ or Ⅱwho elected to receive gynecological laparoscopic surgery were randomly assigned to the ketamine-treated （group K; n = 20） or control （group C n = 20） group. At 2 minutes prior to induction patients in group K received ketamine （0.25 mg/kg） whereas those in group C received normal saline. All patients received standardized general anesthesia. Serum glucose and cortisol values were measured before ketamine administration （TO）, 2 minutes after tracheal intubation （T1）, 30 minutes after skin incision （T2）, 2 minutes after tracheal extubation （T3） and 1 hour postoperatively （T4）. Serum interleukin-6 and tumor necrosis factor-α values were determined at TO and T4. Postoperative analgesic efficacy, side effects of administered drugs, and time to discharge were recorded. Results Compared with subjects in group C, those in group K had lower serum glucose values at T1, T2, T3 and T4 and lower serum cortisol values at T4 （P 〈0.05）. Postoperative interleukin-6 and tumor necrosis factor-α concentrations for group K were lower than those for group C （P 〈0.05）. Postoperative visual analog scale scores at rest, cumulative fentanyl consumption, and time to discharge were lower in group K as compared to group C （P 〈0.05）. No significant differences in drug side effects were observed postoperatively between the two groups. Conclusion Endocrine-metabolic and inflammatory responses to laparoscopic surgery are attenuated in part by Dre-incisienal administration of ketamine.

关键词： endocrine-metabolic response inflammatory response ketamine laparoscopic surgery preemptive analgesia

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不透水地基上堤坝上游坡的附加渗径

岩土力学 2009年第10期30卷 3151-3153,3158页

作者：吴世余余金煌安徽省淮河水利委员会水利科学研究院安徽蚌埠233000

根据努美罗夫的理论解,附加渗径ΔL与上游水深H成正比,与单宽流量与渗透系数的比值q/k成反比。按该理论解的浸润线方程,应用数值积分法求出比例系数α和β,并提出了有足够精度的拟合式。边坡有压流的附加渗径ΔL仅与透水层厚度T成正比,... 详细信息

根据努美罗夫的理论解,附加渗径ΔL与上游水深H成正比,与单宽流量与渗透系数的比值q/k成反比。按该理论解的浸润线方程,应用数值积分法求出比例系数α和β,并提出了有足够精度的拟合式。边坡有压流的附加渗径ΔL仅与透水层厚度T成正比,而和H、q/k无关,ΔL=C0T。根据计算结果,α=C0。对于ΔL反比于q/k,文中作了分析和解释。该计算方法还可推广应用于上游坡下有一定厚度覆盖层的附加渗径计算,并且对附加渗径的各计算式作了比较和分析,并以实例说明了如何应用附加渗径计算堤坝的渗流。

关键词：堤坝渗流复变函数数值积分

Comparison between Finite-amplitude SKAWs and KdV Solitons

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紫金山天文台台刊 1996年第2期15卷 73-77页

作者： Wu De-jin,Wang,De-yu,huang Guang-liPurple Mountaion Observatiory,Academia Sinica,Nanjing,210008 China

In the small-amplitude limit,the solution of SKAWs (Solitary Kinetic Alfven Waves) can be expressed by the KdV soliton ***,some recent observations from the Freja spacecraft showed that the strong electromagnetic spikesin the auroral should be finite-amplitude ***,the comparison between the finite-amplitued and the small amplitude SKAWs is made,and their main characteristics are presented,by use of the analystical solution of finite-amplitude SKAWs obtained by Wu et al.(Ref.[8]) and the KdV soliton solution.

关键词：子产

A CONVENIENT SYNTHESIS OF CYCLOOCTANE DERIVATIVES

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Chinese Chemical Letters 1990年第1期1卷 31-32页

作者： yu jin huang Xi YanLU Shanghai Institute of Organic Chemistry,Academia Sinica,345 Lingling Lu,Shanghai 200032,China

1,5-Bismethylene cyclooctane derivatives were synthesized by the palladium catalyzed annulation reaction of 2-methylene propane-1,3-diol diacetate with compounds containing active methylene groups in the presence of BSA.

关键词： HRMS A CONVENIENT SYNTHESIS OF CYCLOOCTANE DERIVATIVES

Targeting TrkB–PSD-95 coupling to mitigate neurological disorders

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Neural Regeneration Research 2025年第3期20卷 715-724页

作者： Xin Yang yu-Wen Alvin huang John Marshall Department of Molecular Biology Cell Biology and BiochemistryBrown UniversityProvidenceRIUSA Department of Neurology Warren Alpert Medical School of Brown UniversityProvidenceRIUSA Center for Translational Neuroscience Robert J.and Nancy D.Carney Institute for Brain Science and Brown Institute for Translational ScienceBrown UniversityProvidenceRIUSA

Tropomyosin receptor kinase B(TrkB)signaling plays a pivotal role in dendritic growth and dendritic spine formation to promote learning and *** activity-dependent release of brain-derived neurotrophic factor at synapses binds to pre-or postsynaptic TrkB resulting in the strengthening of synapses,reflected by long-term ***,the association of postsynaptic density protein-95 with TrkB enhances phospholipase Cγ-Ca^(2+)/calmodulin-dependent protein kinaseⅡand phosphatidylinositol 3-kinase-mechanistic target of rapamycin signaling required for long-term *** this review,we discuss TrkB-postsynaptic density protein-95 coupling as a promising strategy to magnify brain-derived neurotrophic factor signaling towards the development of novel therapeutics for specific neurological disorders.A reduction of TrkB signaling has been observed in neurodegenerative disorders,such as Alzheimer's disease and Huntington's disease,and enhancement of postsynaptic density protein-95 association with TrkB signaling could mitigate the observed deficiency of neuronal connectivity in schizophrenia and *** with brain-derived neurotrophic factor is problematic,due to poor pharmacokinetics,low brain penetration,and side effects resulting from activation of the p75 neurotrophin receptor or the truncated TrkB.T1 *** TrkB agonists and antibodies that activate TrkB are being intensively investigated,they cannot distinguish the multiple human TrkB splicing isoforms or cell type-specific *** TrkB–postsynaptic density protein-95 coupling provides an alternative approach to specifically boost TrkB signaling at localized synaptic sites versus global stimulation that risks many adverse side effects.

关键词： Angelman syndrome autism brain-derived neurotrophic factor depression neurodegenerative disorder neurodevelopmental disorder postsynaptic density protein-95 synaptic plasticity TrkB

High-temperature-tolerant flexible supercapacitors: Gel polymer electrolytes and electrode materials

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Journal of Energy Chemistry 2025年第1期100卷 426-457页

作者： Chong Peng Xinyi huang Mingwei Zhao Shuling Liao Quanhong Yang Nianjun Yang Siyu yu School of Chemistry & Chemical Engineering Southwest University Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Department of Chemistry & IMO-IMOMEC Hasselt University

The development of flexible supercapacitors(FSCs) capable of operating at high temperatures is crucial for expanding the application areas and operating conditions of supercapacitors. Gel polymer electrolytes and electrode materials stand as two key components that significantly impact the efficacy of hightemperature-tolerant FSCs(HT-FSCs). They should not only exhibit high electrochemical performance and excellent flexibility, but also withstand intense thermal stress. Considerable efforts have been devoted to enhancing their thermal stability while maintaining high electrochemical and mechanical performance. In this review, the fundamentals of HT-FSCs are outlined. A comprehensive overview of state-of-the-art progress and achievements in HT-FSCs, with a focus on thermally stable gel polymer electrolytes and electrode materials is provided. Finally, challenges and future perspectives regarding HT-FSCs are discussed, alongside strategies for elevating operational temperatures and *** review offers both theoretical foundations and practical guidelines for designing and manufacturing HT-FSCs, further promoting their widespread adoption across diverse fields.

关键词： Flexible supercapacitors High-temperature tolerance Gel polymer electrolytes Electrode materials