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服务供应商级路由器NetIron imr 640

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军民两用技术与产品 2005年第7期 13-13页

作者：闻韬

美国网捷网络公司推出的Netlron imr640，可作为服务供应商边缘或核心路由器部署的电信运营商级互联网和城域路由器，能够极大地降低为提供新一代宽带互联网接入和虚拟专网（VPN）服务时的基础设施成本。

关键词：服务供应商核心路由器 imr 美国网捷网络公司互联网接入运营商级基础设施虚拟专网宽带

Percutaneous coronary intervention for acute myocardial infarction with mitral regurgitation

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Journal of Geriatric Cardiology 2016年第6期13卷 521-527页

作者： Yan TU Qing-Chun ZENG Ying HUANG Jian-Yong LI Department of Cardiology Nanfang Hospital Southern Medical University Gunaghzou China

Ischemic 僧帽形的流回(国际互联网每月报告) 是尖锐心肌的梗塞(AMI ) 的普通复杂并发症。当前的证据建议有经皮的冠的动脉干预(一种总线标准) 或冠的动脉的犯人容器的 revascularization 绕过 grafting 能为减轻国际互联网每月报告有... 详细信息

Ischemic 僧帽形的流回(国际互联网每月报告) 是尖锐心肌的梗塞(AMI ) 的普通复杂并发症。当前的证据建议有经皮的冠的动脉干预(一种总线标准) 或冠的动脉的犯人容器的 revascularization 绕过 grafting 能为减轻国际互联网每月报告有益。有与国际互联网每月报告复杂的圣片断举起 AMI 的一个 61 岁的男病人的一个 2.5 年的后续数据证明那个僧帽形的流回区域在一种总线标准以后增加了五天，并且减少了降低稳定的水平在一种总线标准以后的三个月。这发现建议在一种总线标准以后的三个月可能是为为 AMI 评估国际互联网每月报告恢复的可能性和僧帽形的阀门的外科的干预的必要性的一个合适的时间点病人。

关键词：急性心肌梗死冠状动脉二尖瓣介入治疗关闭 imr 数据显示 AMI

Ultrasensitive assays for detection of plasma tau and phosphorylated tau 181 in Alzheimer's disease:a systematic review and meta-analysis

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Translational Neurodegeneration 2021年第1期10卷 112-125页

作者： Xulong Ding Shuting Zhang Lijun Jiang Lu Wang Tao Li Peng Lei Department of Neurology and State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy National Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengdu 610041China Department of Neurology West China HospitalSichuan UniversityChengdu 610041China Mental Health Center and West China Brain Research Center West China HospitalSichuan UniversityChengdu 610041China Department of Rehabilitation Medicine West China HospitalSichuan UniversityChengdu 610041China

A lack of convenient and reliable biomarkers for diagnosis and prognosis is a common challenge for neurodegenerative diseases such as Alzheimer's disease(AD).Recent advancement in ultrasensitive protein assays has allowed the quantification of tau and phosphorylated tau proteins in peripheral *** we identified 66 eligible studies reporting quantification of plasma tau and phosphorylated tau 181(ptau181)using four ultrasensitive ***-analysis of these studies confirmed that the AD patients had significantly higher plasma tau and ptau181 levels compared with controls,and that the plasma tau and ptau181 could predict AD with high-accuracy area under curve of the Receiver Operating Characteristic Therefore,plasma tau and plasma ptau181 can be considered as biomarkers for AD diagnosis.

关键词： Tau Phosphorylated tau 181 Alzheimer's disease Simoa imr EIMAF/a-EIMAF MSD Plasma biomarker

Symmetry properties of the lattice dynamics of nonrigid molecular crystals

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Chinese Journal of Chemistry 1988年第2期6卷 102-108页

作者： WANG Yi-Fei LIANG Ying-Qiu TANG Ao-Qing Institute of Theoretical Chemistry,Jilin University,Changchun Institute of Theoretical Chemistry Jilin University Changchun

The symmetry properties of the lattice dynamics of nonrigid molecular crystals are dis-cussed on mass-weighted translational coordinates and inertia moment-weighted rotational coor-dinates as well as molecular internal normal coordinates in molecular principal axes *** reducible representation of the wavevector group and the classification of molecular crystalnormal modes are provided.A detailed illustrative example is presented.

关键词： imr Symmetry properties of the lattice dynamics of nonrigid molecular crystals

腰椎间盘低剂量CT扫描结合迭代模型重建的图像质量及诊断效能的研究

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诊断学理论与实践 2019年第3期18卷 344-348页

作者：方姝杜联军秦乐董海鹏严福华王韬上海交通大学医学院附属瑞金医院放射科

目的:评价应用迭代模型重建(iterative model reconstruction, imr)技术的腰椎间盘CT低剂量扫描图像质量与MRI诊断结果进行的一致性研究。方法:选取因怀疑腰椎间盘病变而行术前CT检查的患者共40例,且所有患者均进行过腰椎MRI检查,其中2... 详细信息

目的:评价应用迭代模型重建(iterative model reconstruction, imr)技术的腰椎间盘CT低剂量扫描图像质量与MRI诊断结果进行的一致性研究。方法:选取因怀疑腰椎间盘病变而行术前CT检查的患者共40例,且所有患者均进行过腰椎MRI检查,其中20例为低剂量组,主要扫描参数为100 kV,DoseRight指数15;20例为正常剂量对照组,扫描参数为100 kV,DoseRight指数26。扫描完成后均根据椎间隙的方向对椎间盘进行层厚为1 mm的图像重建,低剂量组图像分别以滤波反投影(Filtered back projection, FBP)和imr(1级,软组织算法)算法重建;正常剂量组以FBP算法重建。分别对40例患者的椎间盘进行参数测定,包括椎间盘、黄韧带、椎管、腰大肌或髂腰肌CT值以及背部皮下脂肪噪声,计算各部位的信噪比(signal-to-noise ratio, SNR)及对比噪声比(contrast to-noise ratio, CNR),同时以5分法对各椎间盘层面的图像质量进行主观评分。另外,以MRI为参考标准对2组患者的各组图像进行诊断准确率评估。结果:低剂量组的各放射剂量指标明显低于常规剂量组[容积CT剂量指数,(5.49±1.48) mGy比(1.06±4.42) m Gy;剂量长度乘积,(182.36±51.10) mGy·cm比(730.05±182.45) mGy·cm;有效剂量,(2.35±0.66) mSv比(9.42±2.35) mSv,Pimr图像的SNR、CNR分别优于同组FBP图像和正常剂量组FBP图像的SNR、CNR。在主观评分中,低剂量组imr图像的软组织主观评分明显优于同组FBP图像和正常剂量组FBP图像图像,但骨骼显示方面的主观评分较差(Pimr图像的诊断准确率(95%)明显高于同组低剂量FBP图像诊断准确率(45%),与常规剂量FBP图像诊断准确率(90%)相仿。结论:在腰椎间盘CT扫描中采用低剂量扫描结合imr重建算法,能够提供优质的图像质量及较高的诊断效能,是具有广阔应用前景的新技术。

关键词： imr 低剂量椎间盘图像质量诊断

Production of dileptons with intermediate masses in an expanding quark-gluon matter

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Nuclear Science and Techniques 2000年第3期11卷 183-186页

作者： HE Ze-Jun, JIANG Wei-Zhou, ZHOU Wen-Jie, ZHANG Jia-Ju (Center of Theoretical Nuclear Physics, the National Laboratory of Heavy Ion Accelerator, Lanzhou 750000 Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences Shanghai 201800) 兰州原子核理论研究中心重离子加速器国家实验室甘肃兰州 730000 中科院上海原子核所上海 201800

A study of dilepton spectra, in intermediate mass region (imr), from main background sources, quark phase, and secondary processes in hadronic phase on the basis of a relativistic hydrodynadric model has been carried out. The comparison between these results indicates that in this mass region the contribution from the background sources dominates, and due to the effect of the phase boundary on the evolution of the system the contribution from the quark phase becomes more important than that from secondary processes.

关键词：粒子物理学轻子流体动力学模型产物夸克胶子 imr 强子

Mortality and Other Risk Factors among Infants Born to Teenage Mothers

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Journal of Nanjing Medical University 2004年第5期18卷 228-234页

作者： YURong-bin YANGWei StanleyTOmaye DepartmentofEpidemiologyandBiostatistics SchoolofPublicHealthNanjingMedicalUniversityNanjing210029P.R.China CenterforHealthDataandResearch NevadaStateHealthDivisionCarsonCityNevada DepartmentofNutrition CollegeofHuman＆CommunitySciencesUniversityofNevadaRenoNevadaUSA

Objective: To describe the profiles and changing tendency of infant mortality born to teenage mother in the state of Nevada, 1980-2000, and explore the risk factors of infant mortality. Methods: The Nevada Linked Birth/Infant Death data sets in 1980-2000 was analyzed. Total of 421964 live births were registered, which included 55419 live births born to teenage mother aged 10-20 years old. Multivariate binary logistic regression model was used to explore the risk factors of infant mortality and estimate the strength of association. Results: Infant mortality rate (imr) born to teenage mother varied from 5.69 to 14.72 per 1000 live births in 1980-2000, mean imr was 9.51 per 1000 live births during these 21 years, which were higher than imrs born to 20 years or older mothers every year. imrs in two groups seem to have an overall decline by year during this period. The infant mortality rate born to black teenage mother reached to 16.07 per 1000 live births, which was the highest one and significantly higher than those born to white, native American, Asian and other race mothers. Infant mortality rate generally appeared to decline by the increase of mothers age and 16 years old should be an important cut point. This study showed that Congenital anomalies: Club foot, Abnormal conditions of newborn: Meconium aspiration syndrome, Congenital anomaly: Heart malformation, Method of delivery: Repeat Csection, Abnormal conditions of newborn: Assisted ventilation <30min, Birth weight group, Tobacco use, The time mother prenatal care began were significantly positively associated with infant mortality born to teenage mothers, their odds ratios were 24.25, 10.68, 10.23, 4.73, 2.49, 2.00, 1.99 and 1.19 respectively. The clinical gestation estimates was significantly negatively associated with infant mortality as odds ratio of 0.79. Conclusion: Infant mortality born to teenage mother is one of important public problem in Nevada, there are different risk factors related to infant death

关键词：死亡率风险因素婴儿出生青年母亲 imr

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China Foundry 2015年第5期12卷 388-390页

imr makes progress on titanium alloy 3D printing technology Cooperating with domestic medical institutions,the Engineering Alloys Division of Shenyang National Laboratory for Materials Science,Institute of Metal Resea... 详细信息

关键词：新闻行业国家实验室医疗机构打印技术材料科学钛合金 imr

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冠心病合并缺血性二尖瓣关闭不全的处理方法

中华胸心血管外科杂志 2004年第5期20卷 271-273页

作者：吴若彬郑少忆郭惠明麦明杰黄劲松罗征祥广东省人民医院广东省心血管病研究所心脏外科 510100

目的　探讨冠心病合并缺血性二尖瓣关闭不全 (imr)病例 ,在行冠状动脉旁路移植术(CABG)时是否要对二尖瓣进行处理及最合适的处理方法。方法　回顾分析 2 0 0 0年 1月至 2 0 0 3年 1 0月期间连续行CABG者中 37例合并imr者在不同手术处理... 详细信息

目的　探讨冠心病合并缺血性二尖瓣关闭不全 (imr)病例 ,在行冠状动脉旁路移植术(CABG)时是否要对二尖瓣进行处理及最合适的处理方法。方法　回顾分析 2 0 0 0年 1月至 2 0 0 3年 1 0月期间连续行CABG者中 37例合并imr者在不同手术处理前后的变化。结果　术前合并有轻 -重度imr者中 2 4例仅行CABG ,无手术死亡 ,术后 1周左室舒张直径由 5 2 95mm降至 4 8 1 8mm(P =0 0 0 1 ) ,左室射血分数从 0 46上升到 0 5 5 (P imr ,单纯行再血管化后左心室收缩功能改善、imr短期内明显减轻或消失。中度以上imr并有二尖瓣发生病理结构改变时 ,需同期对二尖瓣进行干预 ,但是手术死亡率较高。

关键词：二尖瓣关闭不全缺血性 CABG 手术死亡 imr 冠心病病理结构处理方法直径置换