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Improvement in the piezoelectric temperature stability of(K_(0.5)Na_(0.5))NbO_3 ceramics

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Chinese Science Bulletin 2011年第22期56卷 2389-2393页

作者： ZHAO JingBo DU HongLiang qu ShaoBo ZHANG hongmei XU Zhuo The College of Science Air Force Engineering University Xi'an 710051 China State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China Electronic Materials Research Laboratory Key Laboratory of Educational Ministry Xi'an Jiaotong University Xi'an 710049 China

Through an analysis of the temperature stability of(K0.5Na0.5)NbO3(KNN)based ceramics and KNN solid solutions,we propose a method to enhance the temperature stability of KNN *** materials are valuable for their piezoelectric *** verify the feasibility of this method,0.9(K1-xNax)NbO3-0.06LiNbO3-0.04CaTiO3(KNLN-CaTiO3)ceramics were designed,and their structure and properties were *** results show that KNLN-CaTiO3(x=0.54)ceramics have a good temperature stability over a wide temperature range(25-320°C).Also,they have good piezoelectric properties(d33=152 pC/N in x=0.54).This result confirms the feasibility of our proposed solution for improving the piezoelectric properties of KNN-based ceramics that have poor temperature stability.

关键词：温度稳定性压电性能陶瓷设计 CaTiO3 KNN 温度范围材料

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老年人上消化道出血急诊胃镜检查分析

中国现代医生 2008年第35期46卷 50-51页

作者：宋光莹李俊玲钟延美曲红梅丰义宽山东省潍坊市人民医院山东潍坊261041

目的探讨老年人上消化道出血的原因。方法分析老年组与非老年组上消化道出血胃镜检查的临床资料。结果消化性溃疡是上消化道出血的主要原因,在老年组和非老年组中分别占65.05%、71.96%;另外,老年组伴有的慢性疾病(冠心病、高血压、脑血... 详细信息

目的探讨老年人上消化道出血的原因。方法分析老年组与非老年组上消化道出血胃镜检查的临床资料。结果消化性溃疡是上消化道出血的主要原因,在老年组和非老年组中分别占65.05%、71.96%;另外,老年组伴有的慢性疾病(冠心病、高血压、脑血管病、慢性阻塞性肺病、慢性肾功能不全、恶性肿瘤、骨关节病)明显多于非老年组。上消化道出血导致的死亡率也较高。结论老年人的慢性疾病一定要积极治疗,预防上消化道出血的发生。

关键词：老年人上消化道出血胃镜检查

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基于疾病控制论的病区输液流程再造研究

南通大学学报（医学版） 2023年第4期43卷 306-309页

作者：陆志方刘大成陈玉文蒋顺仙屈红梅广州华商学院健康医学院广州511300 清华大学工业工程系浙江省义乌市中心医院门诊办河南省商丘市立医院手足外科

目的:通过病区输液流程的分析和再造研究,探讨病区输液管理改进的可能性和策略。方法:对3所医院4个临床科室的输液流程进行分析,根据疾病控制论模型进行输液流程再造;采集其中2所医院3个临床科室病区输液工作计步、计时数据和1个临床科... 详细信息

目的:通过病区输液流程的分析和再造研究,探讨病区输液管理改进的可能性和策略。方法:对3所医院4个临床科室的输液流程进行分析,根据疾病控制论模型进行输液流程再造;采集其中2所医院3个临床科室病区输液工作计步、计时数据和1个临床科室输液流程再造后的输液工作计步、计时数据。结果:输液流程再造后,每患者平均步数显著降低(P=0.001),降幅达56.09%,明显减少输液护士的体能消耗;每患者平均用时降低0.77分,考察需控制时间,降低为40.53%(0.77/1.90),差异有统计学意义(P<0.05)。结论:病区输液流程再造后,可以降低输液护士的体能消耗,缩短每患者平均时间,效率有进一步改进的预期。

关键词：疾病控制论精益管理输液流程再造

Differential physiological responses of the coastal cyanobacterium Synechococcus sp. PCC7002 to elevated pCO2 at lag, exponential,and stationary growth phases

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Science China Earth Sciences 2018年第10期61卷 1397-1405页

作者： Shanli MOU Gang LI hongmei LI Fazhong LI Zhisheng SHAO Jinsong LI Changfeng qu Yongyu ZHANG Key Laboratory of Biofuels Shandong Provincial Key Laboratory of Energy Genetics Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301 China Zhanjiang Branch of China National Offshore Oil Corporation Ltd. Zhanjiang 524000 China Key Laboratory of Marine Bioactive Substance the First Institute of OceanographyState Oceanic AdministrationQingdao 266061 China

We studied the effects of expected end-of-the-century p CO_2(1000 ppm)on the photosynthetic performance of a coastal marine cyanobacterium Synechococcus ***7002 during the lag,exponential,and stationary growth *** p CO_2significantly stimulated growth,and enhanced the maximum cell density during the stationary *** ambient p CO_2conditions,the lag phase lasted for 6 days,while elevated p CO_2shortened the lag phase to two days and extended the exponential phase by four *** elevated p CO_2increased photosynthesis levels during the lag and exponential phases,but reduced them during the stationary ***,the elevated p CO_2reduced the saturated growth light(Ik)and increased the light utilization efficiency(α)during the exponential and stationary phases,and elevated the phycobilisome:chlorophyll a(Chl a)***,the elevated p CO_2reduced the particulate organic carbon(POC):Chl a and particulate organic nitrogen(PON):Chl a ratios during the lag and stationary phases,but enhanced them during the exponential ***,Synechococcus showed differential physiological responses to elevated p CO_2during different growth phases,thus providing insight into previous studies that focused on only the exponential phase,which may have biased the results relative to the effects of elevated p CO_2in ecology or aquaculture.

关键词： Elevated pCO2 Lag Exponential and stationary phases Photosynthetic performance Synechococcus

线阵超声胃镜检查与强化CT、磁共振成像检查对十二指肠乳头癌的诊断效能比较

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实用临床医药杂志 2023年第2期27卷 84-87页

作者：张丽艳宋连强翁晓宇宗蕾孙善明曲红梅山东省潍坊市人民医院消化内科山东潍坊261000

目的比较线阵超声胃镜(EUS)检查、强化CT检查、磁共振成像(MRI)检查对十二指肠乳头癌的诊断效能。方法选取79例十二指肠乳头占位病变患者作为研究对象,分别行EUS检查和上腹部强化CT、MRI检查。将EUS、CT、MRI检查结果分别与金标准结果(... 详细信息

目的比较线阵超声胃镜(EUS)检查、强化CT检查、磁共振成像(MRI)检查对十二指肠乳头癌的诊断效能。方法选取79例十二指肠乳头占位病变患者作为研究对象,分别行EUS检查和上腹部强化CT、MRI检查。将EUS、CT、MRI检查结果分别与金标准结果(内镜下逆行胰胆管造影、活检组织学检查或手术病理等结果)进行比较,计算EUS检查、强化CT检查、MRI检查对十二指肠乳头癌的诊断效能(灵敏度、特异度、准确度),并进行统计学分析。结果79例十二指肠乳头占位病变中,金标准诊断结果为十二指肠乳头癌71例、十二指肠乳头腺瘤或低级别上皮内瘤变8例,EUS检查诊断结果为十二指肠乳头癌73例(其中金标准结果为十二指肠乳头腺瘤或低级别上皮内瘤变者2例)、十二指肠乳头腺瘤或低级别上皮内瘤变6例,强化CT检查诊断结果为十二指肠乳头癌30例、十二指肠腺瘤或低级别上皮内瘤变等病变49例,MRI检查诊断结果为十二指肠乳头癌38例(金标准结果均为十二指肠乳头癌)、十二指肠乳头腺瘤或低级别上皮内瘤变等病变41例。EUS检查对十二指肠乳头癌的诊断灵敏度为100.00%(71/71),高于强化CT检查的42.25%(30/71)、MRI检查的53.52%(38/71),差异有统计学意义(P0.05)。结论相较于强化CT检查、MRI检查,EUS检查对十二指肠乳头癌具有更高的诊断效能,表现为灵敏度和准确度均较高。EUS检查能同时获取活检病理标本,故十二指肠乳头占位病变患者可将其作为优先检查手段。

关键词：线阵超声胃镜检查强化CT检查 MRI检查十二指肠乳头占位十二指肠乳头癌

UNIFAC基团贡献法预测合成硝基麝香固液平衡

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化工进展 2003年第Z1期22卷 17-20页

作者：张卫江张玉华曲红梅杨志才王文喜张磊田华明高晓凡曹咏军何洪天津大学化工学院天津300072 天津大学化工学院天津300072 天津大学化工学院天津300072 天津大学化工学院天津300072 天津大学化工学院天津300072 天津大学化工学院天津300072 天大北洋化工设备有限公司天津300072 天大北洋化工设备有限公司天津300072 天大北洋化工设备有限公司天津300072 天大北洋化工设备有限公司天津300072

UNIFAC基团贡献法是目前流行的一种重要的推算相平衡的方法.应用UNIFAC基团贡献法研究了合成硝基麝香物系在乙酸乙酯、乙睛、环已烷等溶剂中的溶解度.通过麝香物系在多种溶剂中的二元相平衡的实验数据对UNIFAC交互作用参数进行了回归修... 详细信息

UNIFAC基团贡献法是目前流行的一种重要的推算相平衡的方法.应用UNIFAC基团贡献法研究了合成硝基麝香物系在乙酸乙酯、乙睛、环已烷等溶剂中的溶解度.通过麝香物系在多种溶剂中的二元相平衡的实验数据对UNIFAC交互作用参数进行了回归修正,并利用这些交互作用参数预测了大量麝香的二元、三元的固液平衡.与实验值比较,证明参数修正的结果是理想的,误差在允许的范围之内,能满足合成硝基麝香体系固液平衡计算的需要.

关键词： UNIFAC基团贡献法合成硝基麝香固液平衡

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叙事案例教学法在临床急诊教学中的应用研究

中国继续医学教育 2024年第4期16卷 57-61页

作者：曲红梅赵阳李振国阚丽丽金艳荣杨鑫于嘉盘锦辽油宝石花医院急诊科辽宁盘锦124010

目的研究分析叙事案例教学法在临床急诊教学中的应用效果。方法选取2021年3月—2022年3月锦州医科大学学习临床急诊医学的学生64名作为研究对象,并随机分为2组,每组32名。对照组采用案例教学法进行教学,研究组采用叙事案例教学法进行教... 详细信息

目的研究分析叙事案例教学法在临床急诊教学中的应用效果。方法选取2021年3月—2022年3月锦州医科大学学习临床急诊医学的学生64名作为研究对象,并随机分为2组,每组32名。对照组采用案例教学法进行教学,研究组采用叙事案例教学法进行教学。完成教学后,对两组实习生的考核成绩、叙事能力、共情力、沟通能力、临床带教教学满意度进行比较。结果教学前,两组学生叙事能力量表各方面评分及总成绩差异均无统计学意义(P>0.05)。教学后,研究组学生叙事能力量表各方面评分及总成绩明显高于教学前,差异有统计学意义(P0.05)。组间比较,研究组叙事能力量表各方面评分及总成绩均明显高于对照组,差异有统计学意义(P0.05)。研究组教学满意度高于对照组,差异有统计学意义(P<0.05)。结论在临床急诊教学中应用叙事案例教学法,可明显提高学生的叙事能力、共情力、沟通能力、平行病历书写能力及考试成绩,有助于减少医患纠纷事件的发生,也可提高临床带教教学满意度,值得进一步应用。

关键词：叙事案例教学法案例教学法急诊共情力沟通能力满意度

Unleashing energy storage ability of aqueous battery electrolytes

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Materials Futures 2022年第2期1卷 21-37页

作者： hongmei Tang Zhe qu Yaping Yan Wenlan Zhang Hua Zhang Minshen Zhu Oliver G Schmidt Center for Materials Architecturesand Integration of Nanomembranes(MAIN)TU Chemnitz09126 ChemnitzGermany Material Systems for Nanoelectronics TU Chemnitz09107 ChemnitzGermany Sustainable Materials and Chemistry Department of Wood Technology and Wood-based CompositesUniversity of Goettingen37077 GöttingenGermany School of Science TU Dresden01062 DresdenGermany

Electrolytes make up a large portion of the volume of energy storage devices,but they often do not contribute to energy *** ability of using electrolytes to store charge would promise a significant increase in energy density to meet the needs of evolving electronic ***-flow batteries use electrolytes to store energy and show high energy densities,but the same design cannot be applied to portable or microdevices that require static ***,implementing electrolyte energy storage in a non-flow design becomes *** review summarizes the requirements for a stable and efficient electrolyte and diverse redox-active species dissolved in aqueous *** importantly,we review the pioneering works using static electrolyte energy storage in the hope that it will pave a new way to design compact and energy-dense batteries.

关键词： aqueous batteries redox-active electrolytes redox-flow batteries cathode-less anode-less

DNA Methylation of KLRC1 and KLRC3 in Autoimmune Thyroiditis:Perspective of Different Water Iodine Exposure

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Biomedical and Environmental Sciences 2024年第9期37卷 1044-1055页

作者： Yao Chen Jinjin Liu Mengying qu Bingxuan Ren Huaiyong Wu Li Zhang Zheng Zhou Lixiang Liu hongmei Shen Disorders Control Centre for Endemic Disease ControlChinese Centre for Disease Control and PreventionHarbin Medical UniversityHarbin 150081HeilongjiangChina National Health Commission&Education Bureau of Heilongjiang Province Key Laboratory of Etiology and EpidemiologyHarbin Medical UniversityHarbin 150081HeilongjiangChina Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health Harbin Medical UniversityHarbin 150081HeilongjiangChina Division of Health Risk Factor Monitoring and Control Shanghai Municipal Center for Disease Control and PreventionShanghai 200336China Department of Public Health Administration Affiliated Hospital of Jining Medical UniversityJining 272060ShandongChina Heze Municipal Hospital Shandong Provincial Hospital Heze HospitalHeze 274700ShandongChina

Objective This study aimed to identify differentially methylated genes(DMGs) associated with natural killer cells in patients with autoimmune thyroiditis(AIT), focusing on the influence of varying water iodine exposure *** Participants were divided into categories based on median water iodine(MWI)concentrations: iodine-fortified areas(IFA, MWI quate areas(IAA, 40 ≤ MWI ≤ 100μg/L), and iodine-excessive areas(IEA, MWI > 300 μg/L). A total of 176 matched AIT cases and controls were recruited and divided into 89, 40, and 47 pairs for IFA, IAA, and IEA, respectively. DMGs were identified using 850K Bead Chip analysis for 10/10 paired samples. Validation of DNA methylation and m RNA expression levels of the DMGs was conducted using Methyl Target^(TM) and QRT-PCR for 176/176paired *** KLRC1, KLRC3, and SH2D1B were identified as significant DMGs. Validation revealed that KLRC1 was hypomethylated and highly expressed, whereas KLRC3 was hypermethylated and highly expressed in individuals with AIT. Furthermore, KLRC1 was hypomethylated and highly expressed in both IFA and *** The DNA methylation status of KLRC1 and KLRC3 may play crucial roles in AIT pathogenesis. Additionally, DNA methylation of KLRC1 seems to be influenced by different iodine concentrations in water.

关键词： Autoimmune thyroiditis DNA methylation KLRC1 KLRC3 SH2D1B Iodine