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109篇 您的检索式:作者名="Aristeidis"
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1Investigation of proper modeling of very dense granular flows in the recirculation system of CFBs显示文摘The aim of this paper is the development of new models and/or the improvement of existing numerical models,used for simulating granular flow in CFB(circulating fluidized bed) recirculation systems.Most recent models follow the TFM(two-fluid model) methodology,but they cannot effectively simulate the inter-particle friction forces in the recirculation system,because the respective stress tensor does not incorporate compressibility of flow due to change of effective particle density.As a consequence,the induced normal and shear stresses are not modeled appropriately during the flow of the granular phase in the CFB recirculation system.The failure of conventional models,such as that of von Mises/Coulomb,is mainly caused by false approximation of the yield criterion which is not applicable to the CFB recirculation system.The present work adopts an alternative yield function,used for the first time in TFM Eulerian modeling.The proposed model is based on the Pitman-Schaeffer-Gray-Stiles yield criterion.Both the temporal deformation of the solid granular phase and the repose angle that the granular phase forms are more accurately simulated by this model.The numerical results of the proposed model agree well with experimental data,implying that frictional forces are efficiently simulated by the new model.Aristeidis Nikolopoulos Nikos Nikolopoulos Nikos Varveris Sotirios Karellas Panagiotis Grammelis Emmanuel Kakaras 2012Particuology2012,10,6:7
2Boosting third-harmonic generation by a mirror-enhanced anapole resonator显示文摘We demonstrate that a dielectric anapole resonator on a metallic mirror can enhance the third harmonic emission by two orders of magnitude compared to a typical anapole resonator on an insulator substrate.By employing a gold mirror under a silicon nanodisk,we introduce a novel characteristic of the anapole mode through the spatial overlap of resonantly excited Cartesian electric and toroidal dipole modes.This is a remarkable improvement on the early demonstrations of the anapole mode in which the electric and toroidal modes interfere off-resonantly.Therefore,our system produces a significant near-field enhancement,facilitating the nonlinear process.Moreover,the mirror surface boosts the nonlinear emission via the free-charge oscillations within the interface,equivalent to producing a mirror image of the nonlinear source and the pump beneath the interface.We found that these improvements result in an extremely high experimentally obtained efficiency of 0.01%.Lei Xu Mohsen Rahmani Khosro Zangeneh Kamali Aristeidis Lamprianidis Lavinia Ghirardini Jürgen Sautter Rocio Camacho-Morales Haitao Chen Matthew Parry Isabelle Staude Guoquan Zhang Dragomir Neshev Andrey E.Miroshnichenko 2018Light(Science & Applications)2018,7,1:5
3Advances in scalable gas-phase manufacturing and processing of nanostructured solids: A review显示文摘Samir Salameh Jesus Gomez-Hernandez Aristeidis Goulas Hao Van Bui J. Ruud van Ommen 2017Particuology2017,15,1:3
4Image-guided lens extraction surgery: a systematic review显示文摘A systematic review of the recent literature regarding the current image-guided systems used for cataract surgery or refractive lens exchange was performed based on the PubMed and Google Scholar databases in March 2018. Literature review returned 21 eligible studies. These studies compared image-guided systems with other keratometric devices regarding their accuracy, repeatability and reproducibility in measurement of keratometric values, astigmatism magnitude and axis, as well as in IOL power calculation. Additionally, the image-guided systems were compared with conventional manual ink-marking techniques for the alignment of toric IOLs. In conclusion, image-guided systems seem to be an accurate and reliable technology with measurements of high repeatability and reproducibility regarding the keratometry and IOL power calculation, but not yet interchangeable with the current established and validated keratometric devices. However, they are superior over the conventional manual inkmarking techniques for toric IOL alignment.Eirini-Kanella Panagiotopoulou Panagiota Ntonti Maria Gkika Aristeidis Konstantinidis Irfan Perente Doukas Dardabounis Konstantinos Ioannakis Georgios Labiris 2019International Journal of Ophthalmology(English edition)2019,12,1:3
5Imaging of filtering blebs after implantation of the Ex-PRESS shunt with the use of the Visante optical coherence tomography显示文摘AIM: To analyze the features of the filtering blebs following implantation of the Ex-PRESS glaucoma device(model P-50) with the aid of the Visante anterior segment optical coherence tomography(AS-OCT)METHODS: Five patients with open angle glaucomas were included in the study. They all underwent implantation of the Ex-PRESS device under a scleral flap. The surgical procedure was augmented with the use of mitomycin C subconjunctivally. The filtering blebs were analyzed with the Visante AS-OCT with the scans taken along the axis of the implantation of the glaucoma device.RESULTS: All filtering blebs were graded as diffuse functioning. The morphological characteristics of the blebs were similar to those of the trabeculectomy.However the use of the Ex-PRESS implant tend to form a characteristic episcleral lake at the site of the plate of the implant. CONCLUSION: The use of the Ex-PRESS implant produces filtering blebs similar to those of the trabeculectomy with the formation of a characteristic episcleral lake at the site of the plate of the implant.Aristeidis Konstantinidis Georgios D Panos Magdalini Triantafylla Georgios Labiris Efthimia Tsaragli Zisis Gatzioufas Vassilios Kozobolis 2015International Journal of Ophthalmology(English edition)2015,8,3:2
6Modified deep sclerectomy combined with Ex-PRESS filtration device versus trabeculectomy for primary open angle glaucoma显示文摘AIM:To compare the efficacy of modified deep sclerectomy combined with Ex-PRESS shunt versus trabeculectomy in primary open angle glaucoma. METHODS:This is a prospective cohort comparative single-center study. Forty-nine eyes of 49 patients were enrolled in the study. Patients were randomly divided into two groups. Group A(22 patients) underwent classic trabeculectomy and group B(27 patients) underwent modified deep sclerectomy combined with insertion of Ex-PRESS model P50 drainage device. RESULTS:Mean age was 69±7y in group A and 64±8y in group B(P=0.03). The mean reduction was 11.1±5.7 mm Hg in group A compared to 15.8±5.7 mm Hg in group B at 6mo(P=0.006), and 9.8±4.9 mm Hg and 15.4±4.7 mm Hg respectively at 1y(P=0.0001). Regarding the postoperative glaucoma medication, significant difference was observed between the two groups(in favour of group B) only at 6mo(P=0.017). At the end of the follow-up period complete success rate in group A was 68.2% compared to 92.6% in group B(χ~2 test, P=0.07) and qualified success rate was 100% in both groups.CONCLUSION:Modified deep sclerectomy combined with Ex-PRESS shunt may provide comparable IOP reduction with fewer complications in management of primary open angle glaucoma.Vassilios Kozobolis Georgios D.Panos Aristeidis Konstantinidis Miguel Teus Georgios Labiris 2017International Journal of Ophthalmology(English edition)2017,10,5:2
7Efficient wireless non-radiative mid-range energy transfer 显示文摘Aristeidis Karalis J D Joannopoulos Marin Soljacic 2008Annals of Physics2008,323,:1
8DRAMMS:Deformable registration via attribute matching and mutual-saliency weighting 显示文摘Ou YM Aristeidis S Nikos P 2011Medical Image Analysis2011,15,14:1
9Wireless power transfer via strongly coupled magnetic resonances显示文摘KURS André KARALIS Aristeidis MOFFATT Robert 0,,5834:1
10Efficient wireless non-radiative mid-range energy transfer显示文摘Karalis Aristeidis Joannopoulos J D Soljacic Marin 2008Annals of Physics2008,323,:1
11Wireless power transfer via strongly coupled magnetic resonances 显示文摘Andre K Aristeidis K Robert M 2007Sci- ence2007,317,6:1
12Electrocardiographic abnormalities and cardiac arrhythmias in structural brain lesions显示文摘Aristeidis H. Katsanos Panagiotis Korantzopoulos Georgios Tsivgoulis Athanassios P. Kyritsis Maria Kosmidou Sotirios Giannopoulos 2013International Journal of Cardiology2013,,2:1
13Effects of Expiration Date-Based Pricing on Brand Image Perceptions显示文摘Aristeidis Theotokis Katerina Pramatari Michael Tsiros 2011Journal of Retailing2011,,1:1
14The Evaluation of Library Services Methods: Cost Per Use and Users’ Satisfaction显示文摘Aristeidis Meletiou 2010International Journal of Decision Support System Technology (IJDSST)2010,,2:1
15Wireless pow- er transfer via strongly coupled magnetic resonances 显示文摘ANDRI K ARISTEIDIS K ROBERT M 2007Sci- ence2007,317,5834:1
16FSH receptor gene polymorphisms have a role for different ovarian response to stimulation in patients entering IVF/ICSI-ET programs显示文摘Dimitris Loutradis Eleni Patsoula Vassilis Minas Giorgos A. Koussidis Aristeidis Antsaklis Stylianos Michalas Antonis Makrigiannakis 2006Journal of Assisted Reproduction and Genetics2006,,4:1
17Wireless power transfer via strongest couples magnetic resonances显示文摘Andre Kurs Aristeidis Karalis Robert Moffatt et a1 2007Science2007,,37:1
18Wireless power trans fer via strongly coupled magnetic resonances 显示文摘KURS Andre KARALIS Aristeidis 2007Science2007,317,:1
19Wireless power transfer via strongly coupled magnetic resonances 显示文摘Andre K Aristeidis K Robert M 2007Science2007,317,:1
20Financial crises and stock market contagion in a multivariate time-varying asymmetric framework显示文摘Dimitris Kenourgios Aristeidis Samitas Nikos Paltalidis 2010Journal of International Financial Markets, Institutions & Money2010,,1:1
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