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Microstructure and growth morphology of Frank-Kasper phase in rapidly solidified Mg_(32)Al_(17)Zn_(32) ternary alloys

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Rare Metals 2009年第4期28卷 401-404页

作者： ZHU Man YANG Gencang WAN diqing wang Zhijun ZHOU Yaohe State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi＇an 710072 China

In the present investigation, the microstructures and growth morphology of Mg32（Al,Zn）49 Frank-Kasper phase in rapidly solidified Mg32Al17Zn32 temary alloys were studied in detail. The samples were characterised by X-ray diffraction analysis （XRD）, scanning electron microscopy （SEM）, field-emission scanning electron microscopy （FE-SEM） and energy dispersive spectrum （EDS）. The results show that the microstructures mainly consist of Mg3e（Al,Zn）49 Frank-Kasper phase and interdendritic Mg-rich O-phase. Under rapid solidification condition, Mg32（Al,Zn）49 Frank-Kasper phase reveals a perfect faceted dendritic characteristic in the shape of a three-fold symmetric microstructure with doublet tips in the axes direction. Observations for fracture surfaces show that the growth morphology of Mg32（Al,Zn）49 grains was truncated cubic, and its growth mechanism was also discussed.

关键词： Frank-Kasper phase rapid solidification faceted dendrite growth morphology

The Relationship between Abnormal Circadian Blood Pressure Rhythm and Risk of Readmission in Patients with Heart Failure with Preserved Ejection Fraction

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Cardiovascular Innovations and Applications 2021年第2期5卷 275-282页

作者： diqing wang Zhengfei He Sihua Chen Jianlin Du Department of Cardiology the First People’s Hospital of Fuyang District in HangzhouHangzhou311400China Department of Cardiology the Second Affi liated Hospital of Chongqing Medical UniversityChongqing400010China

Objective:Abnormal circadian blood pressure rhythm has been revealed to be associated with hypertensive target organ damage and cardiovascular events,but its association with readmission risk in patients with heart failure with preserved ejection fraction(HFpEF)remains *** conducted a retrospective study to explore the relationship between circadian blood pressure rhythm and readmission risk in HFpEF ***:We retrospectively collected baseline and follow-up data on HFpEF patients who underwent ambulatory blood pressure monitoring(ABPM)from May 2015 to October *** circadian blood pressure rhythms defi ned by ABPM were grouped as dipper,nondipper,or riser *** and multivariate linear regression analyses were performed to assess the association between circadian blood pressure rhythm and readmission ***:A total of 122 patients were enrolled in this *** mean age and ejection fraction were 69.87 years and 61.44%,respectively,with mean the N-terminal pro-B-type natriuretic peptide(NT-proBNP)level being 1048.15 pg/*** were signifi cant differences in the 24-hour systolic blood pressure(SBP),sleep SBP,and sleep diastolic blood pressure(DBP)among the three groups,where the 24-hour SBP,sleep SBP,and sleep DBP in the riser pattern group were markedly higher than in the dipper pattern ***,serum NT-proBNP levels,the proportion of patients readmitted for heart failure and the mean number of admissions differed markedly among three ***,multivariate linear regression analysis showed that the riser pattern was a signifi cant and independent risk factor for increased serum NT-proBNP level(β=929.16,95%confi dence interval 178.79–1679.53,P=0.016).In multivariate logistic regression analysis,the riser pattern was demonstrated to be a signifi cant risk factor for readmission(odds ratio 11.23,95%confi dence interval 2.01–62.67,P=0.006)in HFpEF ***:The riser blood pressure pattern is a

关键词： Heart failure with preserved ejection fraction circadian blood pressure rhythm ambulatory blood pressure monitoring riser pattern N-terminal pro-B-type natriuretic peptide readmission

Disturbing cytoskeleton by engineered nanomaterials for enhanced cancer therapeutics

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Bioactive Materials 2023年第11期29卷 50-71页

作者： Xueli Xu Shanbin Xu Jipeng Wan diqing wang Xinlong Pang Yuan Gao Nengyi Ni Dawei Chen Xiao Sun School of Science Shandong Jianzhu UniversityJinan250101China Shandong Cancer Hospital and Institute Shandong First Medical University and Shandong Academy of Medical SciencesJinan250117China Department of Gynecology Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan250021China School of Chemistry and Pharmaceutical Engineering Medical Science and Technology Innovation CenterShandong First Medical University&Shandong Academy of Medical SciencesJinan250000China Department of Chemical and Biomolecular Engineering National University of Singapore117585Singapore

Cytoskeleton plays a significant role in the shape change,migration,movement,adhesion,cytokinesis,and phagocytosis of tumor *** clinical practice,some anti-cancer drugs achieve cytoskeletal therapeutic effects by acting on different cytoskeletal protein ***,in the absence of cell-specific targeting,unnecessary cytoskeletal recombination in organisms would be disastrous,which would also bring about severe side effects during anticancer *** have been proven to be superior to some small molecule drugs in cancer treatment due to better stability and targeting,and lower side ***,this review summarized the recent developments of various nanomaterials disturbing cytoskeleton for enhanced cancer therapeutics,including carbon,noble metals,metal oxides,black phosphorus,calcium,silicon,polymers,peptides,and metal-organic frameworks,etc.A comprehensive analysis of the characteristics of cytoskeleton therapy as well as the future prospects and challenges towards clinical application were also *** aim to drive on this emerging topic through refreshing perspectives based on our own work and what we have also learnt from *** review will help researchers quickly understand relevant cytoskeletal therapeutic information to further advance the development of cancer nanomedicine.

关键词： Nanomedicine Disturbing cytoskeleton Migration inhibition Tumor therapy

Regional cerebral blood flow imaging assessment of brain function reconstruction in elderly hemiplegia patients by body weight support treadmill training

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Neural Regeneration Research 2011年第17期6卷 1316-1321页

作者： Wenqing wang Yongping Liu diqing wang Yanshuang Li Jinglai Hao Hongwei Zhang Sheng Bi Changshui Weng Department of Rehabilitation Medicine Affiliated Hospital of Chengde Medical College Chengde 067000 Hebei Province China Chengde Medical College Chengde 067000 Hebei Province China Department of Rehabilitation Medicine General Hospital of Chinese PLA Beijing 100853 China

The mechanism underlying body weight support treadmill training in elderly hemiplegic stroke patients is largely unknown. This study aimed to elucidate the changes of cortical blood flow in seven elderly patients with post-stroke hemiplegia before and after body weight support treadmill training by semi-quantitative analysis of regional cerebral blood flow assessed by single photon emission computed tomography. Body weight support treadmill training for 6 months was effective in improving cerebral blood flow and promoting the walking speed and balance recovery in elderly patients with post-stroke hemiplegia.

关键词： single photon emission computed tomography body weight support treadmill training elderly patients cerebral infarction neural regeneration

影响急性冠脉综合征经皮冠状动脉成形术后慢血流-无复流的相关因素

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临床荟萃 2020年第11期35卷 971-975页

作者：何正飞汪笛青何晓兰孙凌刚杭州市富阳区第一人民医院心内科浙江杭州311400

目的分析急性冠脉综合征经皮冠状动脉成形术(PCI)术后慢血流-无复流(SCF/NR)的相关影响因素。方法选取行PCI术急性ST段抬高性心肌梗死(STEMI)患者共152例,根据PCI后TIMI血流分级分为SCF/NR组和正常血流组,分析两组患者PCI术后慢血流-无... 详细信息

目的分析急性冠脉综合征经皮冠状动脉成形术(PCI)术后慢血流-无复流(SCF/NR)的相关影响因素。方法选取行PCI术急性ST段抬高性心肌梗死(STEMI)患者共152例,根据PCI后TIMI血流分级分为SCF/NR组和正常血流组,分析两组患者PCI术后慢血流-无复流的相关影响因素。结果两组性别、BMI、高血压史、家族史、吸烟、饮酒、术前TIMl血流分级、killip分级、尿潜血、左心室舒收末内径、梗死相关动脉、病变位置、弥漫程度、介入治疗方法、射血分数、白细胞计数(WBC)、天门冬氨酸氨基转移酶(AST)、总胆固醇(TC)、三酰甘油(TG)、载脂蛋白A(ApoAI)、载脂蛋白B(ApoB),高密度脂蛋白胆固醇(HDL-C)、脂蛋白a(LPa)、血清胱抑素C(Cys-c)、K+、凝血酶原时间(PT)、国际标准化比值(INR)、活化部分凝血酶原时间(APTT)、D-2聚体(D-D)、病变血管支数、病变血管长度、病变血管直径、支架数量比较无统计学意义(P>0.05);SCF/NR组年龄、糖尿病、低密度脂蛋白胆固醇(LDL-C)、发病至血管开通时间比较高于无SCF/NR组(P<0.05)。多元Logistic回归分析显示,年龄、LDL-C、发病至血管开通时间是术后出现SCF/NR的独立危险因素。结论年龄、LDL-C、发病至血管开通时间是急性冠脉综合征经PCI术后出现SCF/NR的独立危险因素。

关键词：急性冠状动脉综合征血管成形术,气囊,冠状动脉术后慢血流-无复流

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国际工程机电项目商务管理风险管控研究

工程技术研究 2019年第8期4卷 130-131页

作者：孟祥辉刘一丁王笛清中国港湾工程有限责任公司

在经济全球化趋势和国家“一带一路”的倡议下,中国企业积极开拓国际市场,承接了越来越多的国际EPC工程建设项目。EPC项目带动中国产品走出国门,同时也面临很大的风险。文章结合东南亚和南亚某国际工程机电项目实施中遭遇的具体问题,分... 详细信息

在经济全球化趋势和国家“一带一路”的倡议下,中国企业积极开拓国际市场,承接了越来越多的国际EPC工程建设项目。EPC项目带动中国产品走出国门,同时也面临很大的风险。文章结合东南亚和南亚某国际工程机电项目实施中遭遇的具体问题,分析和总结出解决方案,为其他中资企业在国际项目执行中解决类似问题提供一定的借鉴意义。

关键词：国际项目机电工程商务管理标准风险质保期技术审查

Microstructure and Peritectic Reaction within As-solidified Mg-Zn-Y Alloy

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Journal of Materials Science & Technology 2008年第3期24卷 317-320页

作者： diqing WAN Gencang YANG State Key Laboratory of Solidification Processing Northwestern Polytechnial University Xi＇an 710072 China

An investigation on the microstructure and peritectic reaction involving icosahedra phase （I-phase） and crystalline phase （W-phase） within Mg-Zn-Y alloy during conventional solidification technology and rapid quenching was carried out, The solidification process of the peritectic reaction is discussed in details, It is shown that there is no obvious crystallographic relationship between the W-phase and I-phase during the solidification of Mg-Zn-Y alloy.

关键词： Mg-Zn-Y alloys I-phase Peritectic microstructures Solidification

Microstructure,Mechanical Properties and Damping of SiC/Mg97Zn1Y2 Composites

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Journal of Wuhan University of Technology(Materials Science) 2024年第6期39卷 1580-1585页

作者： WAN diqing TANG Hao wang Houbin wang Yu YANG Fan SUN Yumeng wang Yongyong School of Materials Science and Engineering East China Jiaotong UniversityNanchang 330000China

SiC particles were added to the Mg97Zn1Y2 alloy to improve its mechanical properties and damping *** microstructure,mechanical properties,and strain amplitude dependence of high-damping and high-strength SiC/Mg97Zn1Y2 magnesium matrix composites were *** strain amplitude-dependent damping of SiC/Mg97Zn1Y2 composites and the effect of SiC on this property were discussed *** anelastic damping,the strain amplitude-dependent damping curves of the composites were mainly divided into two sections,dominated by the G-L *** the strain amplitude reaches a certain value,the dislocation motion inside the matrix becomes ***,the damping of the material could not be explained using the G-L model,and a new damping model related to microplastic deformation was *** the anelastic damping stage,with the increase in the amount of the added SiC particles,the damping performance first increases and then ***,the damping value of the composite material is larger than that of the matrix *** the microplastic deformation stage,the damping properties of the composites and matrix alloys considerably increase with the strain amplitude.

关键词： high damping high strength magnesium matrix composites strain amplitude

Achieving Energy-Saving,Continuous Redox Flow Desalination with Iron Chelate Redoxmers

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Energy Material Advances 2023年第1期4卷 25-33页

作者： Rongxuan Xie diqing Yue Zhenmeng Peng Xiaoliang Wei Department of Chemical BiomolecularCorrosion EngineeringThe University of AkronAkronOH 44325USA Indiana University-Purdue University Indianapolis 723 West Michigan StreetIndianapolisIN 46202USA Purdue University 585 Purdue MallWest LafayetteIN 47907USA

Desalination of saline water is becoming an increasingly critical strategy to overcome the global challenge of drinkable water shortage,but current desalination methods are often plagued with major drawbacks of high energy consumption,high capital cost,or low desalination *** address these drawbacks,we have developed a unique continuous-mode redox flow desalination approach capitalizing on the characteristics of redox flow *** operation is based on shuttled redox cycles of very dilute Fe^(2+)/Fe^(3+)chelate redoxmers with ultralow cell *** air instability of Fe^(2+)chelate is naturally compensated for by its in situ electrochemical generation,making the desalination system capable of operations with electrolytes at any specified state of *** unoptimized conditions,fast desalination rates up to 404.4 mmol·m^(−2)·h^(−1) and specific energy consumptions as low as 7.9 Wh·molNaCl^(−1) have been successfully ***,this desalination method has offered an opportunity of sustainable,distributed drinkable water supplies through direct integration with renewable energy sources such as solar ***,our redox flow desalination design has demonstrated competitive desalination performance,promising to provide an energy-saving,high-capacity,robust,cost-effective desalination solution.

关键词： solution. chelate dilute