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Association of acute glycemic parameters at admission with cardiovascular mortality in the oldest old with acute myocardial infarction

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Journal of Geriatric Cardiology 2024年第3期21卷 349-358页

作者： Hui-Hui LIU Meng ZHANG Yuan-Lin GUO Cheng-gang ZHU Na-Qiong WU Ying GAO Rui-Xia XU Jie qian Ke-Fei DOU Jian-Jun LI Cardiometabolic Center State Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesNational Clinical Research Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

OBJECTIVES Stress-related glycemic indicators,including admission blood glucose(ABG),stress-hyperglycemia ratio(SHR),and glycemic gap(GG),have been associated with worse outcomes after acute myocardial infarction(AMI).However,data regarding their prognostic value in the oldest old with AMI are ***,this study aimed to investigate the association of stress-related glycemic indicators with short-and long-term cardiovascular mortality(CVM)in the oldest old(≥80 years)with *** In this prospective study,a total of 933 consecutive old patients with AMI admitted to FuWai hospital(Beijing,China)were *** admission,ABG,SHR,and GG were assessed and all participants were classified according to their ***-Meier,restricted cubic splines(RCS),and multivariate Cox regression analyses were performed to evaluate the association between these glycemic indicators and CVM within 30 days and long-term *** During an average of 1954 patient-years of follow-up,a total of 250 cardiovascular deaths were ***-Meier analyses showed the lowest CVM in quartile 1 of ABG and in quartile 2 of SHR and *** adjusting for potential covariates,patients in quartile 4 of ABG,SHR,and GG had a respective 1.67-fold(95%CI:1.03-2.69;P=0.036),1.80-fold(95%CI:1.16-2.79;P=0.009),and 1.78-fold(95%CI:1.14-2.79;P=0.011)higher risk of long-term CVM risk compared to those in the reference groups(quartile 1 of ABG and quartile 2 of SHR and GG).Furthermore,RCS suggested a J-shaped relationship of ABG and a Ushaped association of SHR and GG with long-term ***,we observed similar associations of these acute glycemic parameters with 30-day *** Our data first indicated that SHR and GG consistently had a U-shaped association with both 30-day and longterm CVM among the oldest old with AMI,suggesting that they may be useful for risk stratification in this special population.

关键词： admitted infarction shaped

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Mechanical property and thermal shock behavior of tungsten-yttria-stabilized zirconia cermet fabricated by spark plasma sintering

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Tungsten 2024年第1期6卷 134-140页

作者： Lin-Chao Zhang Ke Jing Rui Liu Zhuo-Ming Xie Jun-Feng Yang gang Li Xian-Ping Wang Xue-Bang Wu qian-Feng Fang Chang-Song Liu Key Laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Science and Technology on Reactor Fuel and Materials Laboratory Nuclear Power Institute of ChinaChengdu 610041China

The cermet fuels have been considered as a potential key component for the nuclear thermal propulsion,and the homogeneity of the fuel particles in the metal matrix plays a crucial role in stabilizing the structure at extremely high *** this work,liquid paraffin was used as additive to improve the distribution of yttria-stabilized zirconia(YSZ,an appropriate surrogate for UO_(2) fuel)microspheres in the tungsten(W)matrix,and the W-YSZ cermet wafers(volume ratio 1:1)with a relative density of 97.6%were fabricated by spark plasma sintering with a specifically designed *** effects of the paraffin dosage(0-5 wt.%)on the homogeneity,microstructure,mechanical properties,and the thermal conductivity of W-YSZ cermet were *** W-YSZ sample with 2 wt.%paraffin shows the highest homogeneity and exhibits the best comprehensive properties,including the ultimate tensile strength of 132.2 MPa at 600℃,the bending strength of455 MPa and thermal conductivity of 50 W·m^(-1)·K^(-1)at room ***,the cermet could keep structurally sound after thermal shocked at a heat load of 20 MW·m^(-2).These results would be helpful for the design and optimization of the cermet fuels in the nuclear thermal propulsion.

关键词： Nuclear thermal propulsion Tungsten Cermet Liquid paraffin Thermal shock

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Active sites of Pt/CNTs nanocatalysts for aerobic base-free oxidation of glycerol

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Green Energy & Environment 2020年第1期5卷 76-82页

作者： Minjian Pan Jingnan Wang Wenzhao Fu Bingxu Chen Jiaqi Lei Wenyao Chen Xuezhi Duan De Chen gang qian Xinggui Zhou State Key Laboratory of Chemical Engineering East China University of Science and Technology130 Meilong RoadShanghai200237China Department of Chemical Engineering Norwegian University of Science and TechnologyTrondheim7491Norway

Understanding the nature of Pt active sites is of great importance for the structure-sensitive base-free oxidation of glycerol. In the present work, the remarkable Pt particle size effects on glycerol conversion and products formation from the oxidation of the primary and the secondary hydroxyl groups are understood by combining the model calculations and DFT calculations, aiming to discriminate the corresponding dominant Pt active sites. The Pt(100) facet is demonstrated to be the dominant active sites for the glycerol conversion and the products formation from the two routes. The insights revealed here could shed new light on fundamental understanding of the Pt particle size effects and then guiding the design and optimization of Pt-catalyzed base-free oxidation of glycerol toward targeted products.

关键词： Base-free oxidation of glycerol Pt/CNTs catalyst Active sites Model calculations DFT calculations

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Active sites and reaction mechanism for N-doped carbocatalysis of phenol removal

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Green Energy & Environment 2020年第4期5卷 444-452页

作者： Mingjie Zhang Chen Han Wenyao Chen Wei Luo Yueqiang Cao gang qian Xinggui Zhou Xiaoguang Duan Shaobin Wang Xuezhi Duan State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWestern Australia 6845Australia School of Chemical Engineering The University of AdelaideAdelaideSouth Australia 5005Australia

Heteroatom-doping of carbocatalysts has been a powerful strategy to remarkably enhance the catalytic ***,the underlying nature of N promotional effects on peroxymonosulfate(PMS)activation for phenol removal is understood by combining kinetics analysis with multiple techniques.A strategy using mixed acid oxidation of carbon nanotube(CNT)followed by NH3 treatment is employed to yield a series of catalysts with different N-doping contents but similar fraction of sp^(2)-hybridized carbon and defective degree,endowing with a chance to discriminate the dominant N-containing active *** multi-sites kinetics analysis suggests the graphitic N-containing sites as the dominant active *** mechanism of the surface-bound reactive species is also discriminated as the dominant reaction *** insights reported here could provide the methodology to fundamentally understand the heteroatom-doping effects of carbocatalysis.

关键词： Phenol removal Carbocatalysis Multi-sites kinetics analysis Graphitic N-Containing sites Surface-bound reactive species

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基于模型驱动实现水厂生产智能调度管理

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中国给水排水 2023年第24期39卷 106-110页

作者：李柱杨澜钱刚上海城投水务<集团>有限公司制水分公司上海200086 上海西派埃智能化系统有限公司上海200233

在智慧水务理念引导下,上海某传统制水厂已开启数字化转型步伐。水量调度是制水厂生产运行的重要业务之一,通常由经验丰富的工作人员完成。将工作人员的经验凝练为水量模型,用模型调度代替人工调度,成功实现了水厂水量调度无人化。水量... 详细信息

在智慧水务理念引导下,上海某传统制水厂已开启数字化转型步伐。水量调度是制水厂生产运行的重要业务之一,通常由经验丰富的工作人员完成。将工作人员的经验凝练为水量模型,用模型调度代替人工调度,成功实现了水厂水量调度无人化。水量模型以人工智能、大数据分析等新兴技术为基础进行构建,包含了供水量分析、泵组优选等多个数学模型。水量模型上线运行后,调度指令准确执行率达到95%以上。该水厂在生产水量增加8.66%的基础上,出水用电单耗下降了5.8%。

关键词：水量模型智能调度智慧水厂泵组优选

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碳/碳复合材料的激光烧蚀行为与机制

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复合材料学报 2022年第9期39卷 4337-4343页

作者：耿莉成溯付前刚李贺军西北工业大学材料学院西安710072 西安鑫垚陶瓷基复合材料有限公司工程研究中心西安710119

碳/碳(C/C)复合材料作为性能优良的耐烧蚀材料得到了广泛的应用,其作为抗激光烧蚀材料的潜力待被发掘。本文制备了不同密度的C/C复合材料,在无氧环境下以CO激光器为光源,探究了高能激光与C/C复合材料之间的作用机制,系统地分析了材料的... 详细信息

碳/碳(C/C)复合材料作为性能优良的耐烧蚀材料得到了广泛的应用,其作为抗激光烧蚀材料的潜力待被发掘。本文制备了不同密度的C/C复合材料,在无氧环境下以CO激光器为光源,探究了高能激光与C/C复合材料之间的作用机制,系统地分析了材料的特性和激光参数不同对烧蚀表现的影响。采用三维轮廓仪对线烧蚀率进行表征。结果表明,随着烧蚀时间或激光功率的变化,C/C复合材料的烧蚀表现均为非线性变化。C/C复合材料的本征特性决定了其热量载荷。密度越高的C/C复合材料,其热量载荷越高,烧蚀性能越好。热量载荷与激光热流密度之间的关系则决定了材料的烧蚀表现,当激光的热流密度大于材料的热流载荷时,烧蚀速率会呈阶跃式攀升。

关键词：碳/碳(C/C)复合材料激光烧蚀烧蚀速率机制热量载荷

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Ultralow specific surface area vermiculite supporting Mn-Ce-Fe mixed oxides as“curling catalysts”for selective catalytic reduction of NO with NH_(3)

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Green Chemical Engineering 2021年第3期2卷 284-293页

作者： Yinji Wan Junqi Tian gang qian Zhisong Liu Wenjian Li Jianming Dan Bin Dai Feng Yu Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi832003China Bingtuan Industrial Technology Research Institute Shihezi UniversityShihezi832003China

In this study,the ultralow specific surface area clay vermiculite(VMT)was selected to be a catalyst support for the NH_(3)-SCR process,and the active components MnCeFeO_(x)loaded on vermiculite was just like curling on ice from the TEM *** de-NO_(x)performance of Mn-Ce-Fe/VMT exhibited almost complete NO conversion with a gas hourly space velocity(GHSV)of 15,300 h^(-1)at 150℃,which was 25%and 10%higher than that of Mn/VMT and Mn-Ce/VMT,*** and Fe co-doping improved the BET surface area,the quantities of active Mn^(4+),the acid sites and NH_(3)adsorption energy of Mn/VMT,all of which contributed to the increase in low-temperature SCR *** situ DRIFT measurements suggested that NO_(x)removal over Mn-Ce-Fe/VMT followed both Eley-Rideal(E-R)and Langmuir-Hinshelwood(L-H)mechanisms at 150℃,but the E-R mechanism played a dominant *** Mn-Ce-Fe/VMT monolithic catalysts reached 90%NO conversion with a GHSV of 4000 h^(-1).

关键词： Vermiculite Mn-Ce-Fe mixed Oxides Selective catalytic reduction NO removal

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芳构化法制2,5-二羟基对苯二甲酸热力学分析及反应特性研究

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应用化工 2022年第11期51卷 3151-3156页

作者：刘晓叶钱刚华东理工大学化工学院上海200237

对由1,4-环己二酮-2,5-二甲酸二甲酯(DMSS)经芳构化法制备2,5-二羟基对苯二甲酸(DHTA)过程中涉及到的两步反应:DMSS与双氧水反应生成2,5-二羟基对苯二甲酸二甲酯(DMDHT)(反应Ⅰ)和DMDHT水解生成DHTA(反应Ⅱ)进行了热力学分析。采用Const... 详细信息

对由1,4-环己二酮-2,5-二甲酸二甲酯(DMSS)经芳构化法制备2,5-二羟基对苯二甲酸(DHTA)过程中涉及到的两步反应:DMSS与双氧水反应生成2,5-二羟基对苯二甲酸二甲酯(DMDHT)(反应Ⅰ)和DMDHT水解生成DHTA(反应Ⅱ)进行了热力学分析。采用Constantinou-Gani和Rozicka-Domalski基团贡献法计算了芳构化法合成DHTA过程中涉及到的主要化合物的热力学参数,并计算得到了两步反应的焓变、Gibbs自由能变以及平衡常数随温度的变化情况。结果表明,反应Ⅰ是放热反应,吉布斯自由能变均小于0且平衡常数非常大,该反应可以自发进行且反应完全;反应Ⅱ是吸热反应,吉布斯自由能变大于0且平衡常数较小,反应无法自发进行。基于热力学计算的结果,进一步考察了工艺参数对芳构化法合成DHTA反应特性的影响,得到了较优的工艺条件:反应Ⅰ温度为105℃,反应时间为55 min,H_(2)O_(2)滴加速率为18 mL/h;反应Ⅱ温度98℃,反应时间50 min。

关键词： 2,5-二羟基对苯二甲酸芳构化热力学分析反应特性

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基于大数据的医保审计优化路径研究

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卫生经济研究 2023年第5期40卷 47-50页

作者：丁杨军钱钢南京审计大学江苏南京211815

在医保审计中,运用大数据技术与方法,可全覆盖筛查隐藏疑点,深挖细查可能存在的医保欺诈行为,提升审计质量和效率。对此,本文提出基于大数据的医保审计优化路径:加强数据安全保护,探索和应用审计新技术,提升大数据医保审计能力,完善审... 详细信息

在医保审计中,运用大数据技术与方法,可全覆盖筛查隐藏疑点,深挖细查可能存在的医保欺诈行为,提升审计质量和效率。对此,本文提出基于大数据的医保审计优化路径:加强数据安全保护,探索和应用审计新技术,提升大数据医保审计能力,完善审计平台建设,推动医保审计工作整体提升。

关键词：医保审计大数据审计数据挖掘

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Subtle adjustment of the cervical spine combined with Shu Jing Ding Xuan Decoction for cervical vertigo

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Journal of Acupuncture and Tuina Science 2015年第1期13卷 22-26页

作者：钱刚邹勇韩丑萍 Taizhou Hospital of Traditional Chinese Medicine Jiangsu 225300 China 不详

Objective：To observe the effect of subtle adjustment of the cervical spine combined with Shu Jing Ding Xuan （Neck-relaxing and Dizziness-alleviating） Decoction for cervical vertigo. 〈br〉 Methods：An open-label, randomized and parallel controlled clinical study was designed. Subtle adjustment of the cervical spine combined with Shu Jing Ding Xuan （Neck-relaxing and Dizziness-alleviating） Decoction was used for patients in the treatment group, whereas subtle adjustment alone was used for patients in the control group. The results in the two groups were statistically analyzed after two courses of treatment. 〈br〉 Results：The recovery rate and total effective rate in the treatment group were 20.6%and 88.2%respectively, versus 14.7%and 73.5%in the control group. The inter-group differences were statistically significant （both P＆lt;0.01）. 〈br〉 Conclusion： Subtle adjustment of the cervical spine combined with Shu Jing Ding Xuan （Neck-relaxing and Dizziness-alleviating） Decoction is better than subtle adjustment alone for cervical vertigo.

关键词： Tuina Massage Drugs,Chinese Herbal Manipulation,Spinal Adjustment Vertigo Spondylosis Neck Pain

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