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Adsorption and desorption properties for rhenium using a kind of weak-base anion resin

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Rare Metals 2018年第8期37卷 707-715页

作者： hong-zhao liu Bo Zhang Xiao-Jing Jing Wei Wang Li-Jun Wang Rare Metal and Metallurgy Materials Research Institute General Research Institute for Nonferrous Metals Beijing 100088 China Zhengzhou Institute of Multipurpose Utilization oI Mineral Resources Zhengzhou 450006 China Key Laboratory of Evaluation and Multipurpose Utilization of Polymetallic Ore of Ministry of Land and Resources Zhengzhou 450006 China

In this paper, a weak-base resin was adopted to recycle rhenium because of its excellent adsorption and desorption properties for rhenium, while the kinetics and thermodynamics properties of adsorbing rhenium from the rhenium stock solution were systematically investigated. The kinetics investigations confirm that the adsorption process of Re belongs to kinetic control by particle diffusion process and the corresponding reaction rate constant is 2.68 × 10-s s^-1. Then, the Langmuir and Freundlich models were used to describe the adsorption equilibrium behaviors of Re and the thermodynamics parameters are obtained. The results show that the Langmuir model is the best-fitted model, and the Gibbs free energy change of Re adsorption onto ZS 15 weak-base resin is AGO = - 10.59 ＋ 12.66T. To verify the weak-base resins for extracting rhenium in industrial application, the column experiments were operated in the spray solution generating by roasting the molybdenum concentrates. The results indicate that the weak-base resins possess excellent adsorptive selectivity for rhenium, and the ammonia solution with low concentration could sufficiently desorb rhe- nium from the resins.

关键词： Rhenium Weak base Thermodynamics Kinetics

One Couple—Two Scientists

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Women of China 1998年第4期 34-35页

作者： HU zhao hong liu

EVEN as more and more of the world’s mysteries are revealed to us, we remain largely ignorant about ourselves. What is life? This question has puzzled philosophers for ages, but only recently, with the speed of scientific development, has the field of molecular biology been able to promise a scientific answer to this Sphinx’s riddle. The secrets are being gradually unveiled for Zeng Yitao and Huang Shuzhen. Both in their career and in real life, the couple is now standing at the forefront of the study of life.

关键词： One Couple Two Scientists

An innovative technique for recycling dissipated metal rhenium from the waste acid in copper smelting process

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China Geology 2020年第2期3卷 350-352页

作者： Bo Zhang hong-zhao liu Wei Wang Xiao-jing Jing Lin liu Zhengzhou Institute of Multipurpose Utilization of Mineral Resources Chinese Academy of Geological SciencesZhengzhou 450006China China National Engineering Research Center for Utilization of Industrial Minerals Zhengzhou 450006China Key Laboratory for Polymetallic Ores’Evaluation and Utilization Ministry of Natural ResourcesZhengzhou 450006China Key Laboratory of Comprehensive Utilization of Gold Resource in Henan Province Zhengzhou 450006China

*** Rhenium is a dissipated metal with the second highest melting point of 3180℃in periodic *** the aerospace field,rhenium plays an indispensable role in the nickel superalloys for the production of aircraft engine and turbine *** very few amount of rhenium resource is existed as independent ore deposit,most rhenium resource is distributed within the porphyry copper and molybdenite ores,consequently rhenium is often recovered as a by-product from the waste acid in copper smelting *** this paper,an innovative technique with low cost,high recovery rate and non-pollution for recycling dissipated metal rhenium from the waste acid in copper smelting process is introduced(Zhang B et al.,2017;liu HZ et al.,2018).

关键词： copper process nickel

Overexpression of low-density lipoprotein receptor prevents neurotoxic polarization of astrocytes via inhibiting NLRP3 inflammasome activation in experimental ischemic stroke

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Neural Regeneration Research 2025年第2期20卷 491-502页

作者： Shuai Feng Juanji Li Tingting liu Shiqi Huang Xiangliang Chen Shen liu Junshan Zhou hongdong zhao Ye hong Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Jinling HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina

Neurotoxic astrocytes are a promising therapeutic target for the attenuation of cerebral ischemia/reperfusion ***-density lipoprotein receptor,a classic cholesterol regulatory receptor,has been found to inhibit NLR family pyrin domain containing protein 3(NLRP3)inflammasome activation in neurons following ischemic stroke and to suppress the activation of microglia and astrocytes in individuals with Alzheimer’s ***,little is known about the effects of low-density lipoprotein receptor on astrocytic activation in ischemic *** address this issue in the present study,we examined the mechanisms by which low-density lipoprotein receptor regulates astrocytic polarization in ischemic stroke ***,we examined low-density lipoprotein receptor expression in astrocytes via immunofluorescence staining and western blotting *** observed significant downregulation of low-density lipoprotein receptor following middle cerebral artery occlusion reperfusion and oxygen-glucose deprivation/***,we induced the astrocyte-specific overexpression of low-density lipoprotein receptor using astrocyte-specific adeno-associated ***-density lipoprotein receptor overexpression in astrocytes improved neurological outcomes in middle cerebral artery occlusion mice and reversed neurotoxic astrocytes to create a neuroprotective ***,we found that the overexpression of low-density lipoprotein receptor inhibited NLRP3 inflammasome activation in oxygen-glucose deprivation/reoxygenation injured astrocytes and that the addition of nigericin,an NLRP3 agonist,restored the neurotoxic astrocyte *** findings suggest that low-density lipoprotein receptor could inhibit the NLRP3-meidiated neurotoxic polarization of astrocytes and that increasing low-density lipoprotein receptor in astrocytes might represent a novel strategy for treating cerebral ischemic stroke.

关键词： inflammation ischemia/reperfusion injury ischemic stroke low-density lipoprotein receptor neuroprotective astrocytes neurotoxic astrocytes NLRP3 inflammasome polarization

Plasma αl-antitrypsin： A Neglected Predictor of Angiographic Severity in Patients with Stable Angina Pectoris

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Chinese Medical Journal 2015年第6期128卷 755-761页

作者： Hui zhao hong liu Lin Chai Ping Xu Lu Hua Xiao-Yuan Guan Bing Duan Yi-Ling Huang Yi-Shi Li Key Laboratory of Clinical Trial Research in Cardiovascular Drugs Ministry of Health State Key Laboratory of Cardiovascular Diseases Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100037 China

Background:As an acute phase protein,α1-antitrypsin (AAT) has been extensively studied in acute coronary syndrome,but it is unclear whether a relationship exists between AAT and stable angina pectoris (SAP).The purpose of the present study was to investigate the association between AAT plasma levels and ***:Overall,103 SAP patients diagnosed by coronary angiography and clinical manifestations and 118 control subjects matched for age and gender were enrolled in this case-control *** levels of AAT,high-sensitivity C-reactive protein (hsCRP),lipid profiles and other clinical parameters were assayed for all *** severity of coronary lesions was evaluated based on the Gensini score (GS) assessed by coronary ***:Positively correlated with the GS (r =0.564,P ＜ 0.001),the plasma AAT level in the SAP group was significantly higher than that in the control group (142.08 ± 19.61 mg/dl vs.125.50 ± 19.67 mg/dl,P ＜ 0.001).The plasma AAT level was an independent predictor for both SAP (odds ratio [OR] =1.037,95％ confidence interval [CO:1.020-1.054,P ＜ 0.001) and a high GS (OR =1.087,95％ CI:1.051-1.124,P ＜ 0.001) in a multivariate logistic regression *** the receiver operating characteristic curve analysis,plasma AAT level was found to have a larger area under the curve (AUC) for predicting a high GS (AUC =0.858,95％ CI:0.788-0.929,P ＜ 0.001) than that of hsCRP (AUC =0.665,95％ CI:0.557-0.773,P =0.006; Z =2.9363,P ＜ 0.001),with an optimal cut-off value of 137.85 mg/dl (sensitivity:94.3％,specificity:68.2％).Conclusions:Plasma AAT levels correlate with both the presence and severity of coronary stenosis in patients with SAP,suggesting that it could be a potential predictive marker of severe stenosis in SAP patients.

关键词： α1-antitrypsin Angiography Coronary Artery Disease Gensini Score Inflammation Stable Angina Pectoris

Regulation and function of endoplasmic reticulum autophagy in neurodegenerative diseases

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Neural Regeneration Research 2025年第1期20卷 6-20页

作者： Xiu-Yun zhao De-En Xu Ming-Lei Wu Ji-Chuan liu Zi-Ling Shi Quan-hong Ma Department of Neurology and Clinical Research Center of Neurological Disease the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Neuroscience&Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases Soochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology Jiangnan University Medical CenterWuxiJiangsu ProvinceChina

The endoplasmic reticulum,a key cellular organelle,regulates a wide variety of cellular *** reticulum autophagy,one of the quality control systems of the endoplasmic reticulum,plays a pivotal role in maintaining endoplasmic reticulum homeostasis by controlling endoplasmic reticulum turnover,remodeling,and *** this review,we briefly describe the endoplasmic reticulum quality control system,and subsequently focus on the role of endoplasmic reticulum autophagy,emphasizing the spatial and temporal mechanisms underlying the regulation of endoplasmic reticulum autophagy according to cellular *** also summarize the evidence relating to how defective or abnormal endoplasmic reticulum autophagy contributes to the pathogenesis of neurodegenerative *** summary,this review highlights the mechanisms associated with the regulation of endoplasmic reticulum autophagy and how they influence the pathophysiology of degenerative nerve *** review would help researchers to understand the roles and regulatory mechanisms of endoplasmic reticulum-phagy in neurodegenerative disorders.

关键词： autophagy endoplasmic reticulum endoplasmic reticulum autophagy endoplasmic reticulum quality control system endoplasmic reticulum receptors endoplasmic reticulum-associated degradation neurodegeneration neurodegenerative disease selective autophagy unfolded protein response

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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Journal of Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu Cun liu Yiren Yu Guoshu Gao Yumeng zhao Xiongfu Zhang Guodong liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

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面向客体的网络通讯模型

微电子学与计算机 1989年第8期6卷 40-43页

作者：赵宏刘积仁东北工业学院计算机系

本文以客体的观点研究计算机网络系统的通讯环境,提出了面向客体的通讯模型和层次客体的概念。在这种模型中,由用户刨建任务客体来完成用户要求的功能,由另一类窗口客体使任务客体与用户交直。这种网络中各个任务之间的通讯,任务客体通... 详细信息

本文以客体的观点研究计算机网络系统的通讯环境,提出了面向客体的通讯模型和层次客体的概念。在这种模型中,由用户刨建任务客体来完成用户要求的功能,由另一类窗口客体使任务客体与用户交直。这种网络中各个任务之间的通讯,任务客体通过窗口客体之间的交互构成整个网络系统的通讯环境。这种模型将使系统层次更加清楚,接口条件明确,有利于系统的实现和维护。

关键词：计算机网络网络通讯模型客体

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ZLM50B装载机驾驶室噪声试验研究

同济大学学报（自然科学版） 2001年第12期29卷 1466-1469页

作者：洪涛刘钊同济大学机械工程系上海200092

应用现代信号处理技术 ,对ZLM 5 0B装载机驾驶室噪声进行了试验研究 .试验结果表明 ,谱分析和相关分析是工程机械噪声识别与控制的有效工具。

关键词：驾驶室噪声谱分析试验研究 ZLM50B装载机