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International Journal of Mining Science and Technology 2021年第6期31卷 995-1002页

作者： Yongbing Zhang Boyuan Zhang Siqi Yang zhigang zhong Hepeng Zhou Xianping Luo Jiangxi Key Laboratory of Mining&Metallurgy Environmental Pollution Control Ganzhou 341000China Key Laboratory of Ionic Rare Earth Resources Development and Application Ministry of EducationGanzhou 341000China Faculty of Resource and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

Ameliorating the problem of low leaching efficiency,long leaching period,and high agent consumption should be studied to efficiently exploit ion-absorbed rare earth ore *** this study,the surfactant sodium dodecyl sulfate(SDS) is used to enhance the leaching effect of an ion-absorbed rare earth ore by ameliorating the seepage effect for the first *** effects of surfactant concentration,leaching agent dosage,solution flow velocity,and solution pH on the leaching rate were explored,and the mechanism of SDS was *** the optimum conditions,the addition of a small amount of SDS(mass fraction0.04%) can increase the leaching rate by about 5%,shorten the leaching period,and reduce the consumption of the leaching *** significantly ameliorates the seepage effect of the ore body by reducing the surface tension of the leaching agent and ameliorating the wettability of the mineral *** effect is the main factor that improves the leaching ***(density functional theory) calculation results show that SDS can react with rare earth ions,which reduces the adsorption strength on clay mineral ***,rare earth ions are easily exchanged by ammonium ions,and mass transfer is enhanced.

关键词： Ion-absorbed rare earth ore Surfactant Sodium dodecyl sulfate Leaching Seepage effect Adsorption

Hyperuricemia and its related diseases:mechanisms and advances in therapy

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Signal Transduction and Targeted Therapy 2024年第9期9卷 3985-4013页

作者： Lin Du Yao Zong Haorui Li Qiyue Wang Lei Xie Bo Yang Yidan Pang Changqing Zhang zhigang zhong Junjie Gao Sports Medicine Center The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041China Institute of Sports Medicine Shantou University Medical CollegeShantou 515041China Centre for Orthopaedic Research Medical SchoolThe University of Western AustraliaNedlandsWA 6009Australia Department of Orthopaedics Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China

Hyperuricemia,characterized by elevated levels of serum uric acid(SUA),is linked to a spectrum of commodities such as gout,cardiovascular diseases,renal disorders,metabolic syndrome,and diabetes,*** impairing the quality of life for those affected,the prevalence of hyperuricemia is an upward trend globally,especially in most developed *** possesses a multifaceted role,such as antioxidant,pro-oxidative,pro-inflammatory,nitric oxide modulating,anti-aging,and immune effects,which are significant in both physiological and pathological *** equilibrium of circulating urate levels hinges on the interplay between production and excretion,a delicate balance orchestrated by urate transporter functions across various epithelial tissues and cell *** existing research has identified hyperuricemia involvement in numerous biological processes and signaling pathways,the precise mechanisms connecting elevated UA levels to disease etiology remain to be fully *** addition,the influence of genetic susceptibilities and environmental determinants on hyperuricemia calls for a detailed and nuanced *** review compiles data from global epidemiological studies and clinical practices,exploring the physiological processes and the genetic foundations of urate transporters in ***,we uncover the complex mechanisms by which the UA induced inflammation influences metabolic processes in individuals with hyperuricemia and the association with its relative disease,offering a foundation for innovative therapeutic approaches and advanced pharmacological strategies.

关键词： mechanisms elevated connecting

Noninvasive Ultrasound Stimulation of Ventral Tegmental Area Induces Reanimation from General Anaesthesia in Mice

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Research 2021年第1期2021卷 81-93页

作者： Tianyuan Bian Wen Meng Meihong Qiu zhigang zhong Zhengrong Lin Junjie Zou Yibo Wang Xiaowei Huang Lisheng Xu Tifei Yuan Zhili Huang Lili Niu Long Meng Hairong Zheng Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhenChina 518055 Department of Pharmacology School of Basic Medical SciencesFudanUniversityShanghaiChina 200032 College of Medicine and Biological Information Engineering Northeastern University195 Innovation RoadShenyang 110016China Shanghai Mental Health Center Shanghai Jiaotong University School of MedicineShanghaiChina 200030

Evidence in animals suggests that deep brain stimulation or optogenetics can be used for recovery from disorders of consciousness(DOC).However,these treatments require invasive *** report presents a noninvasive strategy to stimulate central nervous system neurons selectively for recovery from DOC in *** the delivery of ultrasound energy to the ventral tegmental area,mice were aroused from an unconscious,anaesthetized state in this study,and this process was controlled by adjusting the ultrasound *** mice in the sham group under isoflurane-induced,continuous,steady-state general anaesthesia did not regain their righting *** insonation,the emergence time from inhaled isoflurane anaesthesia decreased(sham.13.63±0.53 min,ultrasound.1.5±0.19 min,p<0.001).Further,the induction time(sham.12.0±0.6 min,ultrasound.17.88±0.64 min,p<0.001)and the concentration for 50%of the maximal effect(EC50)of isoflurane(sham.0.6%,ultrasound.0.7%)*** addition,ultrasound stimulation reduced the recovery time in mice with traumatic brain injury(sham.30.38±1.9 min,ultrasound.7.38±1.02 min,p<0.01).This noninvasive strategy could be used on demand to promote emergence from DOC and may be a potential treatment for such disorders.

关键词： stimulation treatment consciousness

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基于信誉的域间路由选择机制的研究与实现

通信学报 2023年第6期44卷 47-56页

作者：赵仕祺黄小红钟志港北京邮电大学计算机学院北京100876

为了解决边界网关协议(BGP)缺乏对路由更新消息验证的问题,提出一种由信誉评估机制和基于信誉的BGP路由选择算法两部分组成的域间路由选择机制。信誉评估机制采用分布式自治系统(AS)联盟架构,详细划分节点路由行为,以服务域和观测权重... 详细信息

为了解决边界网关协议(BGP)缺乏对路由更新消息验证的问题,提出一种由信誉评估机制和基于信誉的BGP路由选择算法两部分组成的域间路由选择机制。信誉评估机制采用分布式自治系统(AS)联盟架构,详细划分节点路由行为,以服务域和观测权重为指标量化节点行为带来的影响,通过设计反馈机制让信誉不仅能反映节点善恶,还能反映节点对恶意攻击的抵抗能力;基于信誉的BGP路由选择算法在现有路由选择算法中加入一条“安全”策略:过滤包含低信誉节点的路由,并从高信誉的路由中选择最佳路由。实验结果表明,所提机制不仅抑制非法路由传播,还避开易受污染的路径,相比于现有的信誉评估机制更适用于域间路由系统,提供更加安全的域间路由环境。

关键词：边界网关协议信誉机制路由选择机制网络安全

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离子型稀土矿渗流溶浸行为研究

稀有金属 2018年第5期42卷 531-536页

作者：周贺鹏胡洁罗仙平钟志刚江西理工大学资源与环境工程学院江西赣州341000 江西省矿业工程重点实验室江西赣州341000

离子型稀土矿性质复杂,当前所采用的原地溶浸工艺适应性不强、影响因素较多,为揭示离子型稀土矿原地溶浸过程影响机制,探寻溶浸过程优化调控方法,本文以江西龙南足洞风化离子型稀土矿为研究对象,采用室内柱式溶浸法模拟原地溶浸工艺过程... 详细信息

离子型稀土矿性质复杂,当前所采用的原地溶浸工艺适应性不强、影响因素较多,为揭示离子型稀土矿原地溶浸过程影响机制,探寻溶浸过程优化调控方法,本文以江西龙南足洞风化离子型稀土矿为研究对象,采用室内柱式溶浸法模拟原地溶浸工艺过程,开展离子型稀土矿溶浸过程影响规律研究,考察浸出过程各工艺因素对离子型稀土矿浸出效率的影响以及稀土原矿浸出前后的物质变化。研究结果表明,调控离子型稀土矿浸出过程原矿含水量4%、矿层高度43 mm,浸出剂浓度4%、浸出剂溶液p H值5.0、浸取过程固液比1.0∶0.8、浸取剂流速5 ml·min^-1为最佳浸出条件参数,在原矿REO总量为0.078%的情况下,可获得浸出率为92.87%的稀土母液,母液中稀土平均浓度为1.73g·L^-1,效果良好。稀土离子在浸出过程中与浸出剂的电解质NH＋4发生了离子交换反应,稀土离子被交换浸出,而阳离子电解质NH＋4则保留在浸渣中,整个浸出过程未生成其他新的物质,没有改变离子型稀土矿原有的晶型结构,不会影响稀土离子的渗流溶浸,有利于离子型稀土矿的绿色高效提取。

关键词：离子型稀土矿柱式淋浸离子交换过程调控

2006-2020年中国女性乳腺癌死亡趋势分析--基于年龄-时期-出生队列模型

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卫生经济研究 2023年第2期40卷 28-33页

作者：蒲星月马原钟志刚成都中医药大学管理学院健康四川研究院四川成都611137 四川大学华西第二医院四川成都610041 四川省肿瘤医院·研究所四川省癌症防治中心电子科技大学附属肿瘤医院四川成都610041

目的:分析2006-2020年我国女性乳腺癌死亡趋势,为制定乳腺癌防控政策提供参考。方法:采用年龄-时期-出生队列模型估计女性乳腺癌死亡率的年龄效应、时期效应和出生队列效应。结果:我国女性乳腺癌死亡率总体呈上升趋势,年龄效应上死亡风... 详细信息

目的:分析2006-2020年我国女性乳腺癌死亡趋势,为制定乳腺癌防控政策提供参考。方法:采用年龄-时期-出生队列模型估计女性乳腺癌死亡率的年龄效应、时期效应和出生队列效应。结果:我国女性乳腺癌死亡率总体呈上升趋势,年龄效应上死亡风险随年龄增加而上升,时期效应上死亡风险随年代渐近而缓慢上升,出生队列效应上死亡风险呈下降趋势。结论:建议加强对乳腺癌重点人群的健康教育与筛查,有针对性地制定乳腺癌防治策略,规范乳腺癌监测登记工作。

关键词：乳腺癌死亡率年龄-时期-出生队列模型趋势分析

EIGENVALUE PROBLEM OF HAMILTONIAN SYSTEMS IN H∞ FILTERING

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EIGENVALUE PROBLEM OF HAMILTONIAN SYSTEMS IN H∞ FILTERING

中国力学学会学术大会'2005

作者： Wu zhigang Gao Qiang zhong Wanxie (State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China)

Design of H∞filters depends on computing the optimal H∞norms and solving the Riccati equations. From the viewpoint of Hamiltonian systems eigenvalue problem, H∞filtering can be addressed by computing eigenvalues and solving Riccati differential equations of the associated Hamiltonian systems. This paper shows how the problem of determining the optimal disturbance rejection performance of H∞filters can be formulated as eigenvalue problems of the corresponding Hamiltonian systems. The subjects investigated include central filters, perturbed filters and decentralized filters. The argumentation is based on characteristics of the

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污水生物脱氮除磷新技术探讨

当代化工研究 2017年第2期 55-56页

作者：钟志刚广东新大禹环境科技股份有限公司广东510663

城市在处理污水中对新技术有很高的需求,为了解决这一问题,下面就深入分析。主要分析了传统污水生物脱氮除磷的基本原理,在此基础上,结合相关案例分析了脱氮除磷新技术,希望相关技术人员能够学习,并从中得到启发,对相关技术进行创新,推... 详细信息

城市在处理污水中对新技术有很高的需求,为了解决这一问题,下面就深入分析。主要分析了传统污水生物脱氮除磷的基本原理,在此基础上,结合相关案例分析了脱氮除磷新技术,希望相关技术人员能够学习,并从中得到启发,对相关技术进行创新,推动我国污水生物脱氮除磷新技术的发展。

关键词：污水生物脱氮除磷环保技术

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一种可带电更换拔插式电力设备指示灯

电子测试 2022年第5期36卷 125-126,129页

作者：钟志刚云南电网有限责任公司文山供电局云南文山663000

本文设计了一种可带电更换插拔式电力设备指示灯,首先介绍了该电力设备指示灯的外观结构和组建,进一步阐述了设计细节和工作原理。

关键词：电力设备指示灯带电设计

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页岩气燃烧器燃烧特性的数值模拟

天然气工业 2013年第7期33卷 113-117页

作者：杨仲卿郭名女耿豪杰钟志刚张力低品位能源利用技术及系统教育部重点实验室.重庆大学重庆科技学院机械与动力工程学院

研究页岩气的清洁燃烧特性并设计优化其燃烧器对页岩气的推广应用具有重要意义。根据页岩气的特点,设计了供小型工业炉使用的200kW页岩气燃烧器,采用数值模拟的方法,研究了过量空气系数(1.05～1.35)、钝体等对页岩气燃烧的温度分布、燃... 详细信息

研究页岩气的清洁燃烧特性并设计优化其燃烧器对页岩气的推广应用具有重要意义。根据页岩气的特点,设计了供小型工业炉使用的200kW页岩气燃烧器,采用数值模拟的方法,研究了过量空气系数(1.05～1.35)、钝体等对页岩气燃烧的温度分布、燃烧产物、NO排放等特性的影响规律。结果表明:①随着过量空气系数增大,炉膛的峰值温度降低;②过量空气系数较大时,容易在燃烧器根部形成高温区域;③未加装钝体时,NO的生成量较大,NO的生成量随过量空气系数的增加而减小;④在燃气管出口处增加钝体后,可实现甲烷的完全转化;⑤与未加装钝体相比,炉膛温度峰值下降,钝体后形成回流区,回流的高温烟气能够有效预热喷出的燃气,减少了着火时间,温度分布较均匀,燃烧状况稳定,产生的NO浓度较低。综合考虑的结论认为,增加钝体优化后的燃烧器,当过量空气系数为1.25时的工况性能最优。

关键词：页岩气燃烧器燃烧数值模拟设计优化钝体一氧化氮过量空气系数