摘要：
A LES model is proposed to predict the dispersion of particles in the atmosphere in the context of Chemical,Biological,Radiological and Nuclear(CBRN)applications.The code relies on the Finite Element Method(FEM)for both the fluid and the dispersed solid phases.Starting from the Navier-Stokes equations and a general description of the FEM strategy,the Streamline Upwind Petrov-Galerkin(SUPG)method is formulated putting some emphasis on the related assembly matrix and stabilization coefficients.Then,the Variational Multiscale Method(VMS)is presented together with a detailed illustration of its algorithm and hierarchy of computational steps.It is demonstrated that the VMS can be considered as a more general version of the SUPG method.The final part of the work is used to assess the reliability of the implemented predictor/multicorrector solution strategy.
摘要：
Young African living in the Greater Bay Area upbeat on the prospects of the area Lineo Kobeli’s first impression about China was low-priced Chinese goods brought back to Lesotho by her father from his first trip to China in 2005 when she was 16. At that time, she didn’t know anything else about this country where she will later study and live for years.
摘要：
A young Congolese businessman helps foreigners as a volunteer in Guangzhou Mubua Mununu Jeremie Dada,from the Democratic Republic of the Congo, has spent 10 years in Guangzhou and now views it as his second home. After studying traditional Chinese medicine in this city, which is home to China’s largest African community, like many of his fellow countrymen, he decided to stay and do business.
摘要：
本發(fā)明提供了一種上頜Le Fort I型骨切開術(shù)專用把持鉗，屬于臨床醫(yī)學(xué)技術(shù)領(lǐng)域；上頜Le Fort I型骨切開術(shù)專用把持鉗由上部鉗體、下部鉗體、個性化板組成；上部鉗體與下部鉗體之間交叉并通過銷軸活動連接，可上下張閉調(diào)整高度。下部可調(diào)節(jié)鉗合與下部弓形鉗喙間由內(nèi)陷螺絲連接，可左右張閉調(diào)整寬度。個性化板由側(cè)面凹陷結(jié)構(gòu)與下部可調(diào)節(jié)鉗合的側(cè)面凸出結(jié)構(gòu)插接。術(shù)中使用時，當(dāng)上頜骨段被折斷后，利用上部鉗體的前端分叉鉗合接觸鼻底骨組織，調(diào)整下部可調(diào)節(jié)鉗合適應(yīng)不同的牙弓寬度后精準(zhǔn)接觸上頜牙列，手把持上下部鉗柄，松動和牽出上頜骨段。本發(fā)明的骨切開術(shù)專用把持鉗保護(hù)了硬腭軟組織及粘膜進(jìn)而減少了術(shù)中損傷，并實(shí)現(xiàn)了精準(zhǔn)穩(wěn)定夾持上頜骨段。
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