نتایج جستجو برای: stable flow

تعداد نتایج: 728217  

2017
Tingjiao Zhou Jinbin Yang Deyong Zhu Jieyao Zheng Stephan Handschuh-Wang Xiaohu Zhou Junmin Zhang Yizhen Liu Zhou Liu Chuanxin He Xuechang Zhou

A bio-inspired, leaf-like pumping strategy by mimicking the transpiration process through leaves is developed for autonomous and continuous liquid transport enabled by durable hydrophilic sponges. Without any external power sources, flows are continuously generated ascribed to the combination of capillary wicking and evaporation of water. To validate this method, durable hydrophilic polydimethy...

Journal: :Age and ageing 1999
D Fischer J A Ship

BACKGROUND although several reports indicate that qualitative and quantitative assessments of parotid salivary function are age-stable in healthy adults, there have been no studies of the influence of age on the variability of repeated parotid flow rates. OBJECTIVE to examine the influence of age on the variability of repeated parotid flow rates in unmedicated, healthy adults. MATERIALS AND...

Journal: :Stroke 1989
D S DeWitt P P Fatouros A O Wist L M Stewart H A Kontos J A Hall P R Kishore R L Keenan A Marmarou

Regional cerebral blood flow was simultaneously determined using the stable xenon computed tomographic and the radioactive microsphere techniques over a wide range of blood flow rates (less than 10-greater than 300 ml/100 g/min) in 12 baboons under conditions of normocapnia, hypocapnia, and hypercapnia. A total of 31 pairs of determinations were made. After anesthetic and surgical preparation o...

Journal: :Physical review letters 2011
Stirling A Colgate Howard Beckley Jiahe Si Joe Martinic David Westpfahl James Slutz Cebastian Westrom Brianna Klein Paul Schendel Cletus Scharle Travis McKinney Rocky Ginanni Ian Bentley Timothy Mickey Regnar Ferrel Hui Li Vladimir Pariev John Finn

The Ω phase of the liquid sodium α-Ω dynamo experiment at New Mexico Institute of Mining and Technology in cooperation with Los Alamos National Laboratory has demonstrated a high toroidal field B(ϕ) that is ≃8×B(r), where B(r) is the radial component of an applied poloidal magnetic field. This enhanced toroidal field is produced by the rotational shear in stable Couette flow within liquid sodiu...

2007
Jan Nordström Frank Ham Mohammad Shoeybi Edwin van der Weide Magnus Svärd Ken Mattsson Gianluca Iaccarino Jing Gong

We show how a stable and accurate hybrid procedure for fluid flow can be constructed. Two separate solvers, one using high order finite difference methods and another using the node-centered unstructured finite volume method are coupled in a truly stable way. The two flow solvers run independently and receive and send information from each other by using a third coupling code. Exact solutions t...

Journal: :Lab on a chip 2014
Po-Hsun Huang Nitesh Nama Zhangming Mao Peng Li Joseph Rufo Yuchao Chen Yuliang Xie Cheng-Hsin Wei Lin Wang Tony Jun Huang

We present a programmable acoustofluidic pump that utilizes the acoustic streaming effects generated by the oscillation of tilted sharp-edge structures. This sharp-edge-based acoustofluidic pump is capable of generating stable flow rates as high as 8 μL min(-1) (~76 Pa of pumping pressure), and it can tune flow rates across a wide range (nanoliters to microliters per minute). Along with its abi...

2017
Jan Nordström Frank Ham Mohammad Shoeybi Edwin van der Weide Magnus Svärd Ken Mattsson Gianluca Iaccarino Jing Gong

We show how a stable and accurate hybrid procedure for fluid flow can be constructed. Two separate solvers, one using high order finite difference methods and another using the node-centered unstructured finite volume method are coupled in a truly stable way. The two flow solvers run independently and receive and send information from each other by using a third coupling code. Exact solutions t...

Journal: :Calculus of Variations and Partial Differential Equations 2017

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