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872篇 您的检索式:作者名="Knopp"
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1An SDN/NFV Based Framework for Management and Deployment of Service Based 5G Core Network显示文摘The traffic explosion and the rising of diverse requirements lead to many challenges for traditional mobile network architecture on flexibility, scalability, and deployability. To meet new requirements in the 5 G era, service based architecture is introduced into mobile networks. The monolithic network elements(e.g., MME, PGW, etc.) are split into smaller network functions to provide customized services. However, the management and deployment of network functions in service based 5 G core network are still big challenges. In this paper, we propose a novel management architecture for 5 G service based core network based on NFV and SDN. Combined with SDN, NFV and edge computing, the proposed framework can provide distributed and on-demand deployment of network functions, service guaranteed network slicing, flexible orchestration of network functions and optimal workload allocation. Simulations are conducted to show that the proposed framework and algorithm are effective in terms of reducing network operating cost.Lu Ma Xiangming Wen Luhan Wang Zhaoming Lu Raymond Knopp 2018China Communications2018,15,10:20
2Dynamic Contrast-Enhanced Perfusion MR Imaging Measurements of Endothelial Permeability: Differentiation between Atypical and Typical Meningiomas显示文摘BACKGROUND: AND PURPOSE: The measurement of relative cerebral blood volume (rCBV) and the volume transfer constant (K(trans)) by means of dynamic contrast-enhanced (DCE) perfusion MR imaging (pMRI) can be useful in characterizing brain tumors. The purpose of our study was to evaluate the utility of these measurements in differentiating typical meningiomas and atypical meningiomas. METHODS: Fifteen patients with pathologically confirmed typical meningiomas and seven with atypical meningiomas underwent conventional imaging and DCE pMRI before resection.rCBV measurements were calculated by using standard intravascularLaw M Zagzag D Golfinos JG Knopp EA Johnson G 2003中国神经肿瘤杂志2003,1,3:10
3利用强场多光子电离技术实现对多原子分子离子振动量子态的光学操控显示文摘利用飞秒光电子影像技术研究了碘甲烷分子在飞秒强激光场作用下的多光子电离动力学,在实验上实现了运用飞秒强场多光子电离技术对多原子分子离子的振动量子态进行光学操控.提高了飞秒激光的强度,从1.6×1013W/cm2提高到2.5×1013W/cm2.在增大的激光强度范围内,发现了新的能量组分,并对此进行归属.通过采集光电离的光电子影像可以得到强场电离后光电子的动能分布和角度分布两方面的信息,前期的研究主要侧重于讨论光电子动能随光强的变化,重点讨论了光电子角度分布随光强的变化,通过观察光电子角度分布的变化趋势对振动量子态调控机理进一步认识.刘玉柱 Gerber Thomas Knopp Gregor 2014物理学报2014,63,24:7
4氟利昂F1110分子在飞秒激光脉冲作用下的多光子解离动力学显示文摘含氟利昂在内的含氯化合物在太阳光辐射下解离生成破坏臭氧的游离态氯原子,是破坏大气臭氧层的主要元凶.本文利用飞行时间质谱技术及离子速度成像技术研究了氟利昂F1110(四氯乙烯)分子在800 nm飞秒脉冲光作用下的多光子解离动力学.利用飞行时间质谱探测技术,得到了四氯乙烯在800 nm飞秒激光脉冲作用下发生多光子解离产生的碎片质谱,发现了两个主要碎片离子C_2Cl_3^+和C_2Cl_2^+.对应的解离机理分别为单个C—Cl键断裂直接生产氯自由基C_2Cl_4^+→C_2Cl_3^++Cl和两个C—Cl键断裂C_2Cl_4^+→C_2Cl_2^++2Cl.利用离子速度成像技术对这两种机理产生的碎片离子进行成像,得到了C_2Cl_3^+和C_2Cl_2^+离子的速度影像.分析发现这两个碎片离子的动能分布均可由两个高斯分布曲线拟合,说明这两种解离机理分别还对应了两种解离通道.通过影像分析得到了解离的平动能分布和角向分布各向异性参数等详尽的动力学信息.通过高精度密度泛函理论计算对解离动力学进行了进一步的分析和讨论.刘玉柱 肖韶荣 王俊锋 何仲福 邱学军 Gregor Knopp 2016物理学报2016,65,11:5
5氟利昂F113分子在飞秒激光作用下的多光子电离解离动力学显示文摘大气臭氧层因吸收太阳紫外光,是人类必不可少的保护伞.氟利昂在太阳光辐射下解离生成破坏臭氧的游离态氯原子,是破坏大气臭氧层的主要元凶之一.本文利用飞行时间质谱技术和离子速度成像技术研究了氟利昂F113(三氟三氯乙烷)分子在800 nm飞秒光作用下的多光子电离解离动力学.利用飞行时间质谱探测技术,得到了三氟三氯乙烷在该波长飞秒激光作用下发生多光子电离解离产生的碎片质谱.通过荷质比对碎片质谱进行了详细的标定和分析.在质谱上未发现母体离子,所有观察到的离子都是由于激光脉冲作用下产生的碎片.三个最主要的碎片离子是CFCl_2^+,CF_2Cl^+,C_2F_3Cl_2^+.通过飞行时间质谱标定,发现并归属了多个解离通道.三个主要的解离机理分别为:1)C-Cl键断裂直接生产氯自由基的通道C_2F_3Cl_3^+→C_2F_3Cl_2^++Cl;2)C-C键断裂C_2F_3Cl_2^+→CFCl_2^++CF_2Cl;3)C-C键断裂C_2F_3Cl_3^+→CF_2Cl^++CFCl_2.利用离子速度成像技术对这三个主要通道产生的碎片离子进行成像,得到了C_2F_3Cl_2^+,CFCl_2^+和CF_2Cl^+离子的速度影像.由C-Cl键断裂产生的碎片离子C_2F_3Cl_2^+的速度分布由两个高斯分布曲线拟合,而由C-C键断裂产生的碎片离子CFCl_2^+和CF_2Cl^+可以用一个高斯曲线拟合.通过影像分析得到了解离碎片的平动能分布和角向分布各向异性参数等详尽的动力学信息.结合高精度密度泛函理论计算对解离动力学进行了进一步的分析和讨论.深入认识氟利昂的解离动力学可为进一步控制破坏臭氧层提供理论参考和实验依据.刘玉柱 陈云云 郑改革 金峰 Gregor Knopp 2016物理学报2016,65,5:4
6Relationship of adiponectin to body fat distribution, insulin sensitivity and plasma lipoproteins: evidence for independent roles of age and sex显示文摘M. Cnop P. J. Havel K. M. Utzschneider D. B. Carr M. K. Sinha E. J. Boyko B. M. Retzlaff R. H. Knopp J. D. Brunzell S. E. Kahn MB ChB 2003Diabetologia2003,,4:2
7Functional tumor imaging with dynamic contrast-enhanced magnetic resonance imaging显示文摘Choyke PL Dwyer AJ Knopp MV 2003J Magn Reson Imaging2003,17,5:1
8Intraindividual comparison of contrast enhancement in brain tumors:A blinded reader comparison of a standard Gd-chelate(Gd-DTPA) vs a weak protein interating chelate(Gd-BOPTA)显示文摘Knopp MV Runge V Essig M 2001Proc intl Soc Mag Geson Med2001,9,:1
9Pathophysiologic basis of contrast enhancement in breast tumor显示文摘Knopp NW Weiss E Sinn HP 1999Magn Reson Imaging1999,10,7:1
10High grade gliomas and solitary metastases; differentiation by using perfusion and proton spectroscopy MR imaging显示文摘Law M Cha S Knopp EA 2002Radiology2002,222,3:1
11Relationships of lipoprotein lipids to mild fasting hyperglycemia and diabetes in pregnancy显示文摘Knopp RH Chapman M Bergelin R 1980Diabetes Care1980,3,:1
12Gestational diabetes and the incidence of type2 diabetes:a systematic review显示文摘Kim C Newton KM Knopp RH 0,,10:1
13Intracranial mass lesions:Dynamic contrast-enhanced susceptibility-weighted echo-planar perfusion MR Imaging显示文摘 Edmond A Knopp 2002Radiology2002,223,1:1
14Breast tumors: computer-assisted quantitative assessment with color Doppler US 显示文摘HUBER S DELORME S KNOPP M V 1994Radiology1994,192,3:1
15Effect of written feedback by editors on quality of reviews: Two randomized trials显示文摘Callaham M L Knopp R K Gallagher E J 2002JAMA2002,287,21:1
16Evaluation of the efficacy,safety,and tolerability of ezetimibe in primary hypercholesterolaemia:a pooled analysis from two controlled phase Ⅲclinical studies显示文摘KNOPP R H DUJOVNE C A LE BEAUT A 2003Int J Clin Pract2003,57,5:1
17Gestational diabetes and the incidence of type 2 diabetes : a systematic review 显示文摘Kim C Newt KM Knopp RH 2002Diabetes Care2002,25,10:1
18Metabolic effects of hypocaloric diets in management of gestational diabetes显示文摘Knopp RH Magee MS Raisys V 1991Diabetes1991,40,2:1
19A review of molecular patho- logical markers in vulvar carcinoma: Lack of application in clinical praetice显示文摘Knopp S Trope C Nesland JM 2009J Clin Pathol2009,62,3:1
20Gestational diabetes and the incidence of type 2 diabetes:a systematic review显示文摘Kim C Newton KM Knopp RH 0,,:1
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