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Provenance and salt structures of gypsum formations in Pb-Zn ore-bearing Lanping basin,Southwest China

Journal of Central South University 2020年第6期27卷 1828-1845页

作者： ZHANG Zhi-bo ZHU Zhi-jun LI Huan JIANG Wei-cheng WANG Wen-feng XU ying LI Li-rong College of Earth Sciences East China University of TechnologyNanchang 330013China School of Resources and Geosciences China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring Ministry of EducationSchool of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China School of Earth Resources China University of GeosciencesWuhan 430074China

Large-scale gypsum rocks associated with world-class Pb-Zn ore formations are widely distributed in the Lanping Basin,Sowthwest *** studies alongside field investigations were conducted in this study to determine the source and evolutionary processes of the gypsum rocks in this *** gypsum sequences in the Lanping Basin developed in two formations:the Triassic Sanhedong Formation and the Paleogene Yunlong *** gypsum hosted in the former displays a primary thick-banded structure withδ34SV-CDT values in the range of 14.5‰−14.8‰.Combined with the 87Sr/86Sr values(0.707737−0.707783)of limestone,it can be suggested that the Sanhedong Formation is of marine *** contrast,the gypsum from the Paleogene Yunlong Formation is characterized by the dome,bead and diapiric salt structures,wider range of both 87Sr/86Sr(0.707695−0.708629)andδ34SV-CDT values(9.6‰−17‰),thus indicating a marine source but with the input of continental *** initial layered salt formations were formed by chemical deposition in a basin and were later intensely deformed by collisional orogeny during the Himalaya *** a result,variable salt structures were *** hereby propose an evolutionary model to elucidate the genesis of the gypsum formations in the Lanping Basin.

关键词： Lanping basin gypsum marine sediment Sr–S isotopes salt structure

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Polyinosine-polycytidylic acid promotes excessive iodine intake induced thyroiditis in non-obese diabetic mice via Toll-like receptor 3 mediated inflammation

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Chinese Medical Journal 2013年第4期126卷 703-710页

作者： SHI Ya-nan LIU feng-hua YU Xiu-jie LIU Ze-bing LI Qing-xin YUAN Ji-hong ZANG Xiao-yi LI Lan-ying 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics Key Laboratory of Hormones and Development Metabolic Diseases Hospital & Tianjin Institute of Endocrinology Tianjin Medical University Tianjin 300070 China

Background Excessive iodine intake and viral infection are recognized as both critical factors associated with autoimmune thyroid diseases. Toll-like receptors （TLRs） have been reported to play an important role in autoimmune and inflammatory disorders. In this study, we aimed to clarify the possible mechanism of TLR3 involved in polyinosine- polycytidylic acid （poly（I：C）） promoting excessive iodine intake induced thyroiditis in non-obese diabetic （NOD） mice. Methods Both NOD and BALB/c mice were randomly assigned to four groups： control group （n=5）, high iodine intake （HI） group （n=7）, poly（I：C） group （n=7） and combination of excessive iodine and poly（l：C） injection （HIP） group （n=7）. After 8 weeks, mice were weighed and blood samples were collected. All the mice were sacrificed before dissection of spleen and thyroid gland. Then, thyroid histology, thyroid secreted hormone, expression of CD3＋ cells and TLR3 as well as inflammatory mRNA level were evaluated. Results Both NOD and BALB/c mice from HI and HIP group represented goiter and increasing thyroid relative weight. Thyroid histology evidence indicated that only HIP group of NOD mice showed severe thyroiditis with lymphocytes infiltration in majority of thyroid tissue, severe damage of follicles and general fibrosis. Immunofiuorescence staining results displayed a large number of CD3~ cells in HIP NOD mice. Real-time polymerase chain reaction （PCR） results suggested interferon （IFN）-a increased over 30 folds and IFN-y expression was doubled compared with control group, but interleukin （IL）-4 remained unchanged in HIP group of NOD mice thyroid. Meanwhile, over one third decrease of blood total thyroxine （TT4） and increased thyroid-stimulating hormone （TSH） was observed in HIP group of NOD mice. Only HIP group of NOD mice represented significantly elevation of TLR3 expression. Conclusion Poly（l：C） enhanced excessive dietary iodine induced thyroiditis in NOD mice through increasing TLR3 mediated inflammation.

关键词： polyinosine-polycytidylic acid excessive iodine thyroiditis Toll-like receptor 3

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改良Bardenpho-芬顿-臭氧-活性炭处理工业园区污水

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环境科技 2024年第4期37卷 39-42页

作者：狄文亮任丹冯军坡张国宇田勇志侯秀云天润(山东)生态环境科技有限公司山东威海264200 哈尔滨工业大学(威海) 山东威海264200

滨州某工业园区污水处理厂主要出水指标要求满足DB37/3416.4—2018《流域水污染物综合排放标准第4部分:海河流域》的一级标准,设计采用“改良Bardenpho+芬顿絮凝沉淀池+砂滤池+臭氧催化反应+活性炭滤池+接触消毒”工艺。其中污水处理厂... 详细信息

滨州某工业园区污水处理厂主要出水指标要求满足DB37/3416.4—2018《流域水污染物综合排放标准第4部分:海河流域》的一级标准,设计采用“改良Bardenpho+芬顿絮凝沉淀池+砂滤池+臭氧催化反应+活性炭滤池+接触消毒”工艺。其中污水处理厂(二期)已投入运营,改良Bardenpho设计总停留时间37.54h,混合液内回流200%~300%,采用可提升曝气方式;二沉池表面负荷为0.64m^(3)/(m^(2)·h);芬顿反应时间为90min,高效沉淀池表面负荷为3.43m^(3)/(m^(2)·h);臭氧反应时间为60min,投加量为60kg/h;接触消毒停留时间38min。实际出水水质满足设计要求。

关键词：工业园区改良Bardenpho 芬顿反应臭氧反应

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Biphasic (Lu,Gd)_(3)Al_(5)O_(12)-based transparent nanoceramic color converters for high-power white LED/LD lighting

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Journal of Advanced Ceramics 2023年第12期12卷 2331-2344页

作者： Jie Fu ying Zhang Shaowei feng Mathieu Allix Cécile Genevois Emmanuel Veron Zhibiao Ma Wenlong Xu Linghan Bai Ruyu Fan Yafeng Yang Hui Wang Jianqiang Li School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Mesoscience and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China CNRS CEMHTI UPR 3079Univ.OrléansOrléans 45071France University of Chinese Academy of Sciences Beijing 100049China Beijing Key Laboratory for Advanced Powder Metallurgy and Particulate Materials University of Science and Technology BeijingBeijing 100083China

Ce doped Lu_(3)Al_(5)O_(12)(Ce:LuAG)transparent ceramics are considered as promising color converters for solid-state lighting because of their excellent luminous efficiency,high thermal quenching temperature,and good thermal ***,Ce:LuAG ceramics mainly emit green *** shortage of red light as well as the expensive price of Lu compounds are hindering their application for white *** this work,transparent(Lu,Gd)_(3)Al_(5)O_(12)–Al_(2)O_(3)(LuGAG–Al_(2)O_(3))nanoceramics with different replacing contents of Gd^(3+)(10%–50%)were successfully elaborated via a glass-crystallization *** obtained ceramics with full nanoscale grains are composed of the main LuGAG crystalline phase and secondary Al_(2)O_(3) phase,exhibiting eminent transparency of 81.0%@780 *** doping by Ce^(3+),the Ce:LuGAG–Al_(2)O_(3) nanoceramics show a significant red shift(510 nm→550 nm)and make up for the deficiency of red light component in the emission *** Ce:LuAG–Al_(2)O_(3) nanoceramics with 20%Gd^(3+)show high internal quantum efficiency(81.5%in internal quantum efficiency(IQE),96.7%of Ce:LuAG–Al_(2)O_(3) nanoceramics)and good thermal stability(only 9%loss in IQE at 150℃).When combined with blue LED chips(10 W),0.3%Ce:LuGAG–Al_(2)O_(3) nanoceramics with 20%Gd^(3+)successfully realize the high-quality warm white LED lighting with a color coordinate of(0.3566,0.435),a color temperature of 4347 K,CRI of 67.7,and a luminous efficiency of 175.8 lm·W^(−1).When the transparent 0.3%Ce:LuGAG–Al_(2)O_(3) nanoceramics are excited by blue laser(5 W·mm^(−2)),the emission peak position redshifts from 517 to 570 nm,the emitted light exhibits a continuous change from green light to yellow light,and then to orange-yellow light,and the maximum luminous efficiency is up to 234.49 lm·W^(−1)(20%Gd^(3+)).Taking into account the high quantum efficiency,good thermal stability,and excellent and adjustable luminous properties,the transparent Ce:LuGAG–Al_(2)O_(3) nanoceramics w

关键词： glass crystallization (Lu,Gd)_(3)Al_(5)O_(12)(LuGAG)-Al_(2)O_(3)nanoceramics high-power WLEDs/LDs white lighting

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Strong and stiff Ag nanowire-chitosan composite films reinforced by Ag-S covalent bonds

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Nano Research 2018年第1期11卷 410-419页

作者： Xiao-feng Pan Huai-Ling Gao Yang Su Ya-Dong Wu Xiang-ying Wang Jing-Zhe Xue Tao He Yang Lu Jian-Wei Liu Shu-Hong Yu School of Chemistry and Chemical Engineering Hefei University of Technology Hefei230009 China Division of Nanomatefials and Chemistry Hefei National Laboratory for Physical Sciences at Microscale Collaborative Innovation Center of Suzhou Nano Science and Technology CAS Center for Excellence in Nanoscience Department of Chemistry University of Science and Technology of China Hefei 230026 China

High-performance composites containing various kinds of nanofibers as reinforcing building blocks have recently received considerable attention, owing to their superior mechanical properties. One of the effective strategies to reinforce these composites involves strengthening interfacial interactions via covalent bonds. However, in contrast to nanosheets, covalent bonds have been rarely used in nanofiber-reinforced composites. Herein, we report the macroscale fabrication of a series of Ag nanowire （NW）-thiolated chitosan （TCS） composite films via spray induced self-assembly. The obtained films were significantly strengthened by Ag-S covalent bonds formed between the Ag NWs and the thiol groups of TCS. The tensile strength of the optimized Ag NW-TCS film was up to 3.9 and 1.5 times higher compared with that of pure TCS and Ag NW-chitosan （CS） films, respectively.

关键词： silver nanowire thiolated chitosan Ag-S covalent bond spraying reinforcement

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A study of the effects of students' cognitive styles on their learning behaviors of online database search strategies

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Chinese Journal of Library and Information Science 2012年第2期5卷 74-86页

作者： ying feng Liren GAN Deyi QIAO School of Economics & Management Nanjing University of Science and Technology

Purpose: Based on a quasi-experimental design, this study sought to investigate the effects of two different cognitive styles, field independence and field dependence, on students' learning behaviors of online database search ***/methodology/approach: An experiment was carried out among senior students in a Chinese ***: The field independent(FI) subjects performed better in terms of their search strategy scores. When comparing how many people in each cognitive style group learned the targeted search strategies, more field dependent(FD) subjects were successors, whereas the FI subjects were more inclined to learn from their past experience. When analyzing the reasons for the subjects' selection of search strategies, we found that the FI subjects demonstrated more rational thinking behaviors than the FD *** limitations: Only 28 students participated in the study, which was a relatively small sample size. A larger sample will give more information and therefore more precise *** implications: This research can provide some suggestions to the information system designers on how the system interface can be better designed to suit the cognitive styles of different ***/value: So far, few studies have been published about the effects of users' cognitive styles on their learning behaviors of online database search strategies.

关键词： University student Information retrieval Learning behavior Cognitive style

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Agmatine increases proliferation of cultured hippocampal progenitor cells and hippocampal neurogenesis in chronically stressed mice

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Acta Pharmacologica Sinica 2006年第11期27卷 1395-1400页

作者： Yun-feng LI~2 Hong-xia CHEN ying LIU You-zhi ZHANG Yan-qin LIU Jin LI Beijing Institute of Pharmacology and Toxicology,Beijing 100850,China Beijing Institute of Pharmacology and Toxicology Beijing 100850 China. lyf619@***

Aim:To explore the mechanism of agmatine’s antidepressant ***:Male mice were subjected to a variety of unpredictable stressors on a daily basisover a 24-d *** open-field behaviors of the mice were displayed andrecorded using a Videomex-V image analytic system *** bromodeo-xyuridine(BrdU;thymidine analog as a marker for dividing cells)labeling,the micewere injected with BrdU(100 mg/kg,ip,twice per d for 2 d),and the hippocampalneurogenesis in stressed mice was measured by *** of cultured hippocampal progenitor cells from neonatal rats wasdetermined by colorimetric assay(cell counting kit-8)and ~3H-thymidine incorpo-ration ***:After the onset of chronic stress,the locomotor activity ofthe mice in the open field significantly decreased,while coadministration of agma-tine 10 mg/kg(po)blocked ***,the number of BrdU-labeled cells in thehippocampal dentate gyrus significantly decreased in chronically stressed mice,which was also blocked by chronic coadministration with agmatine 10 mg/kg(po).Four weeks after the BrdU injection,some of the new born cells matured andbecame neurons,as determined by double labeling for BrdU and neuron specificenolase(NSE),a marker for mature *** vitro treatment with agmatine 0.1-10 μmol/L for 3 d significantly increased the proliferation of the cultured hippoc-ampal progenitor cells in a dose-dependent ***:We have foundthat agmatine increases proliferation of hippocampal progenitor cells in vitro andthe hippocampal neurogenesis in vivo in chronically stressed mice,This may beone of the important mechanisms involved in agmatine’s antidepressant action.

关键词： Agmatine antidepressant neurogenesis chronic stress hippocampus progenitor cells

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外周神经脉冲射频联合重复经颅磁刺激治疗带状疱疹后神经痛的疗效观察

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中华实验外科杂志 2024年第8期41卷 1848-1851页

作者：童胜雄张严国李少军田佳玉田晗邹天浩丁喆冯丹武汉市第一医院疼痛科武汉430022 武汉市第一医院神经外科武汉430022

目的观察外周神经脉冲射频(PRF)联合重复经颅磁刺激(rTMS)治疗带状疱疹后神经痛(PHN)的疗效和安全性。方法选取2021年4月至2023年1月武汉市第一医院收治的100例PHN患者,按照随机数字表法分为PRF组和联合组,每组50例。PRF组接受肌骨超声(... 详细信息

目的观察外周神经脉冲射频(PRF)联合重复经颅磁刺激(rTMS)治疗带状疱疹后神经痛(PHN)的疗效和安全性。方法选取2021年4月至2023年1月武汉市第一医院收治的100例PHN患者,按照随机数字表法分为PRF组和联合组,每组50例。PRF组接受肌骨超声(MBU)引导下PRF(65V)治疗,联合组在PRF组的基础上进行rTMS(10 Hz)治疗。两组均治疗1个月,比较两组临床疗效、不良反应发生情况及治疗前(T0)、治疗后1周(T1)、1个月(T2)和3个月(T3)的视觉模拟评分表(VAS)、匹兹堡睡眠质量指数(PSOI)、生活质量量表(SF-36)和抑郁自评量表(SDS)评分。对两组T0、T1、T2、T3各项评价指标(VAS、PSOI、SF-36、SDS)采用双因素重复测量方差分析。结果联合组总有效率明显高于PRF组(96.0%比86.0%,χ2=11.520,P<0.05),联合组T1、T2、T3的VAS[(5.06±0.25)分比(6.15±0.22)分,F=2.265,P<0.01;(2.26±0.32)分比(4.33±0.21)分,F=1.034,P<0.01;(1.35±0.11)分比(2.61±0.08)分,F=2.024,P<0.01]、PSOI[(10.55±0.78)分比(12.09±0.96)分,F=1.411,P<0.01;(8.65±0.87)分比(9.98±0.56)分,F=3.031,P<0.01;(7.56±0.22)分比(8.74±0.15)分,F=6.888,P<0.01]、SDS[(43.76±4.52)分比(45.61±3.21)分,F=2.783,P<0.01;(40.82±1.26)分比(41.95±0.53)分,F=6.514,P<0.01;(28.21±0.42)分比(31.70±0.17)分,F=2.468,P<0.01]评分均明显低于PRF组,而SF-36[(78.24±5.36)分比(75.66±1.25)分,F=5.418,P<0.01;(80.23±1.02)分比(79.27±5.41)分,F=2.177,P<0.01;(85.24±1.42)分比(81.23±1.24)分,F=3.926,P<0.01]评分明显高于PRF组。结论MBU引导下外周神经PRF联合rTMS治疗PHN效果显著,可降低患者疼痛程度和抑郁程度并改善睡眠质量和生活质量,安全性高,优于单独使用PRF治疗。

关键词：带状疱疹后神经痛脉冲射频重复经颅磁刺激超声

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基于Lasso回归构建生物标志物影响代谢综合征的风险预测模型

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中国疗养医学 2024年第1期33卷 1-5页

作者：黄茜郑少燕张志英朱丹萍范雪婷杜彪刘松坚火箭军广州特勤疗养中心检验科广东广州510515

目的探讨代谢综合征的生物标志物及影响因素,构建代谢综合征的风险预测模型。方法选取2020年1月至2021年12月到某中心疗养体检并诊断为代谢综合征的161例患者作为实验组,另选择同一时期根据性别和年龄匹配的192例非代谢综合征患者作为... 详细信息

目的探讨代谢综合征的生物标志物及影响因素,构建代谢综合征的风险预测模型。方法选取2020年1月至2021年12月到某中心疗养体检并诊断为代谢综合征的161例患者作为实验组,另选择同一时期根据性别和年龄匹配的192例非代谢综合征患者作为对照组。收集患者的临床基线资料和生物标志物,利用Lasso回归筛选出代谢综合征相关的生物标志物,用于构建预测代谢综合征高危人群的预警模型。结果使用Lasso回归共筛选出7个影响代谢综合征相关的生物标志物和影响因素,分别为体质量指数(body mass index,BMI)、2型糖尿病(type 2 diabetes,T2DM)、空腹血糖(fasting blood glucose,FBG)、三酰甘油(triglyceride,TG)、高密度脂蛋白胆固醇(highdensity lipoprotein cholesterol,HDL-C)、单核细胞计数/高密度脂蛋白胆固醇比值(monocyte count/HDL-C ratio,MHR)和超敏C反应蛋白(high-sensitivity C-reactive protein,hs-CRP)。预测模型的曲线下面积(area under curve,AUC)为0.9857。结论本研究利用Lasso回归构建生物标志物的风险预测模型用于预测代谢综合征的能力较强,可用于指导临床医生早期识别代谢综合征的高危人群。

关键词：代谢综合征生物标志物 Lasso回归预测模型

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Impacts of environmental problems on the innovation of enterprises

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Ecological Economy 2020年第1期16卷 17-25页

作者： CHENG Meng-yun QIN feng-ying School of Marxism Wuhan Institute of TechnologyWuhan 430205CHINA

Entering an industrial civilized society,environmental problems have become increasingly *** only have the number of disasters increased,but the types of disasters have also increased,and the overall losses caused by human disasters have increased *** the increasingly prominent environmental problems affect the innovation of enterprises?To answer this question,this paper analyzes the impact of environmental problems on the innovation of enterprises from two aspects of technological innovation and management innovation,and puts forward the cost reallocation effect,technology innovation effect,reallocation effect of human resource,and management innovation effect.

关键词： environmental problems cost reallocation technological innovation management innovation

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