维普中文期刊产品整合服务
410篇 您的检索式:作者名="EFSTATHIOU"
    题名 作者 年代 出处 被引量
1基于信息熵的制造系统复杂性测度及其在调度中的应用显示文摘制造系统的复杂性是指制造系统难以被理解、描述、预测和控制的状态。从信息论角度指出制造系统的复杂度是描述制造系统的状态所预期需要的信息量。将制造系统的复杂性描述为静态和动态两种形式:静态复杂性是描述制造系统在静止状态下各制造资源根据其调度方案所预期拥有的状态所需要的信息量,动态复杂性则指描述制造系统在运行过程中各资源的实际状态所需要的信息量。应用信息论中的信息熵理论研究制造系统的复杂性测度问题,分别建立了基于信息熵的静态和动态复杂性测度模型。将上述复杂性理论应用于调度研究,提出最大可行调度时限和调度依附度两个评价调度有效性的量化指标,为调度有效性的分析、评价及改善提供了重要工具。实例研究表明所提理论和方法的有效性。饶运清 EFSTATHIOU Janet 2006机械工程学报2006,42,7:38
2Quantitative study of prostate cancer using three dimensional fiber tractography显示文摘AIM:To investigate feasibility of a quantitative study of prostate cancer using three dimensional(3D)fiber tractography.METHODS:In this institutional review board approved retrospective study,24 men with biopsy proven prostate cancer underwent prostate magnetic resonance imaging(MRI)with an endorectal coil on a 1.5 T MRI scanner.Single shot echo-planar diffusion weighted images were acquired with b = 0.600 s/mm^2,six gradient directions.Open-source available software Track Vis and its Diffusion Toolkit were used to generate diffusion tensor imaging(DTI)map and 3D fiber tracts.Multiple 3D spherical regions of interest were drawn over the areas of tumor and healthy prostatic parenchyma to measure tract density,apparent diffusion coefficient(ADC)and fractional anisotropy(FA),which were statistically analyzed.RESULTS:DTI tractography showed rich fiber tract anatomy with tract heterogeneity.Mean tumor region and normal parenchymal tract densities were 2.53 and 3.37 respectively(P < 0.001).In the tumor,mean ADC was 0.0011 × 10^(-3 )mm^2/s vs 0.0014 × 10^(-3) mm^2/s in the normal parenchyma(P < 0.001).The FA values for tumor and normal parenchyma were 0.2047 and 0.2259 respectively(P = 0.3819).CONCLUSION:DTI tractography of the prostate is feasible and depicts congregate fibers within the gland.Tract density may offer new biomarker to distinguish tumor from normal tissue.Sandeep Hedgire Alexey Tonyushkin Aoife Kilcoyne Jason A Efstathiou Peter F Hahn Mukesh Harisinghani 2016World Journal of Radiology2016,8,4:4
3Voltammetric Determination of N-alkylated Anlines by Adsorption / Extraction at a Carbon Paste Electrode显示文摘Zoulis N E Efstathiou C E 1988Anal Chim Acta1988,204,:2
4Nonsteroidal anti-inflammatory drugs differentially suppress endometriosis in a murine model显示文摘Efstathiou JA Sampson DA Levine Z 2005Fertil Steril2005,83,:1
5Fe-er of unknown origin~ discrimination between infectious and non-infectious causes显示文摘Efstathiou SP Pefanis AV Tsiakou AG 2010Eur J Intern Med2010,21,2:1
6Cardiovascular mortality and duration of androgen deprivation for locally ad- vanced prostate cancer: analysis of RTOG 92-02 显示文摘Efstathiou JA Bae K Shipley WU 2008Eur Uro12008,54,:1
7ICUD-EAU International Consultation on Bladder Cancer 2012:Radical cystectomy and bladder preservation for muscle-invasive urothelial carcinoma of the bladder显示文摘Gakis G Efstathiou J Lerner S P 2013Eur Urol2013,63,1:1
8Preconcentration at a carbon - baste electrode and determination by adsorptive - stripping voltammetry of rutin and other flavonoids显示文摘Zoulis N E Efstathiou C E 1996Analytica Chimica Acta1996,320,:1
9Modulation of epithelial cell adhesion in gastrointestinal homeostasis显示文摘Efstathiou JA Pignatelli M 1998J Am J Pathology1998,153,:1
10Forecasting cosmic parameter errors from microwave background anisotropy experiments显示文摘Bond J R Efstathiou G Tegmark M 1997Astron Soc1997,291,:1
11Cardiovascular mortality after androgen deprivation therapy for locally ad- vanced prostate cancer: RTOG 85-31 显示文摘Efstathiou JA Bae K Shipley WU 2009J Ciin Oncol2009,27,:1
12Fever of unknown origin:Discrimination between infectious and non-infectious causes显示文摘Efstathiou SP Pefanis AV Tsiakou AG 2010Eur J Int Med2010,21,2:1
13Fastparallel-prefix modulo 2n +\ adders显示文摘EFSTATHIOU C VERGOS H T NIKOLOS D 2004IEEE Trans onComputers2004,53,9:1
14Skeletal and dental response to rapid maxillary expansion with 2- ver- sus 4-band appliances显示文摘Davidovitch M Efstathiou S Same O 2005Am J Orthod Dentofacial Orthop2005,127,4:1
15Comparison of three liquid chromatography method for egg-white protein analysis显示文摘AWADE A C EFSTATHIOU T 1999Journal of Chromatography B1999,723,:1
16Kinetic Study of N-Bromosuccinimide Reactions and Kinetic Determination of Pyridoxine Using A bromide-Selective Electrode显示文摘Stergios A Halvatzis Meropi M Timotheou-Potarnia Constantions E Efstathiou 1993Talanta1993,40,8:1
17Nonsteruidal antiinflammatory drugs differentially suppress endometriosis in a murine model显示文摘Efstathiou JA Sampson DA Levine Z 2005Fertil Steril2005,83,1:1
18Plasma adiponectin levels and five-year survival after first-ever ischemic stroke显示文摘Efstathiou SP Tsioulos DI Tsiakou AG 2005Stroke2005,36,9:1
19Comparing the impact of different rescheduling strategies on the entropic-related complexity of manufacturing systems 显示文摘HUATUCO L H EFSTATHIOU J CALINESCU A 2009International Journal of Production Research2009,47,15:1
20The cosmological constant and cold dark matter显示文摘EFSTATHIOU G SUTHERLAND W J MADDOX S J 1990Nature1990,348,:1
返回顶部 每页显示:
共21页 首页 上一页 第1页 下一页 末页 /21 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费