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Low-overhead distribution strategy for simulation and optimization of large-area metasurfaces

npj Computational Materials 2022年第1期8卷 735-740页

作者： Jinhie Skarda Rahul Trivedi Logan Su Diego ahmad-Stein Hyounghan Kwon Seunghoon Han Shanhui Fan Jelena Vučković E.L.Ginzton Laboratory Stanford UniversityStanfordCA 94305USA Max-Planck-Institut fur Quantenoptik Hans-Kopfermann-Str.185748 GarchingGermany Department of electrical and computer engineering University of WashingtonSeattle 98195USA Samsung Advanced Institute of Technology Samsung ElectronicsSuwon-siGyeonggi-do 443-803Republic of Korea

Fast and accurate electromagnetic simulation of large-area metasurfaces remains a major obstacle in automating their *** this paper,we propose a metasurface simulation distribution strategy which achieves a linear reduction in the simulation time with the number of compute *** this distribution strategy with a GPU-based implementation of the Transition-matrix method,we perform accurate simulations and adjoint sensitivity analysis of large-area *** demonstrate ability to perform a distributed simulation of large-area metasurfaces(over 600λ×600λ),while accurately accounting for scatterer-scatterer interactions significantly beyond the locally periodic approximation.

关键词： distribution surfaces scatter

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Cattle toxoplasmosis in Iran:a systematic review and meta-analysis

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Asian Pacific Journal of Tropical Medicine 2015年第2期8卷 120-126页

作者： Shahabeddin Sarvi ahmad Daryani Mohammad Taghi Rahimi Mohsen Aarabi Azar Shokri Ehsan ahmadpour Azadeh Mizani Mahdi Sharif Toxoplasmosis Research Center Mazandaran University of Medical SciencesSariIranPostal Code:48168-95475 Department of Parasitology and Mycology Sari Medical SchoolMazandaran University of Medical SciencesSariIranPostal Code:48168-95475 Sari Medical School Mazandaran University of Medical SciencesSariIranPostal Code:48168-95475

Objective:To analyze and review the overall seroprevalence rate of Toxoplasma gondii(***) infection in cattle from ***:In the current study,data collection(published and unpublished papers,abstracts of national scientific congresses and dissertations) using particular terms was carried out systematically on the following electronic databases like PubMed,Google Scholar,Ebsco,Science Direct,Scopus,Magiran,Irandoc,IranMedex and SID(Scientific Information Database).Results:A total of 22 studies since 1983 to 2012 reporting the seroprevalence of toxoplasmosis in cattle from different regions of Iran met our eligibility *** pooled proportion of toxoplasmosis,using random effect model,among cattle in Iran from over the 30-year period was estimated 18.1%(95%CI:9.9%to 28.2%).Conclusions:This study firstly establishes a crude seroprevalence rate of Toxoplasma infection in cattle which can lead us to understand the condition of eattle toxoplasmosis,which have to take into accounted fur an appropriate and effective prevention and ***,it compares and discusses elaborately the role of risk factors including sex,age and breed in the epidemiology of the ***,it determines gaps and drawbacks in the prior studies which are greatly useful to design more accurate investigations in the future.

关键词： Toxoplasma gondii Prevalence Systematic review Meta-analysis Iran

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