During the course of biochemical and genetic studies with Panagrellus redivivus, we required large numbers of sexually immature nematodes. Initially we used filtration through glass beads, a method devised to obtain size-synchronized cultures (1, 2, 3). However, these methods were found to be inefficient because large losses of nematodes were encountered. We now use a simple, rapid, and inexpen...

Data are presented of experiments with turbulent open channel flow over rough surfaces and large relative submergence, which are conducted in two series with different geometric boundary conditions. During the experiments an oscillating fluid motion in the uppermost filter layer is visualised by the injection of a tracer dye. It is shown that this oscillating fluid motion is driven by highly un...

The Kuramoto-Sivashinsky equation plays an important role as a low-dimensional prototype for complicated fluid dynamics systems having been studied due to its chaotic pattern forming behavior. Up to now, efforts to carry out data assimilation with this 1-d model were restricted to variational adjoint methods domain and only Chorin and Krause [26] tested it using a sequential Bayesian filter app...

cated by hyponatraemia no improvement in renal function or hepatic encephalopathy was seen.4 Thirteen of the 16 patients in this series died, two from complications of the peritoneal dialysis technique. Arteriovenous haemofiltration is an extracorporeal technique which allows removal of fluid, electrolytes, and small to medium sized molecules by plasma ultrafiltration.5 A single filter used for...

Data from computational fluid dynamics (CFD) are frequently computed on curvilinear grids. In contrast to cartesian or uniform grids, the cell size in a curvilinear grid can vary significantly, which in turn complicates filter operations tremendously. Some of these filter operations may for example re-map the value range of the data values into another range. In this paper, we present adaptive ...

Kidney cysts are fluid-filled sacs that occur inside or on the surface of kidney. It is common in human The incidence kidney increases with age. a factor formation stone can cause hypertension as well failure and functions. most method for detecting computed tomography. In this study, location cyst was tried to be determined by using edge detection filter Sobel filter. values were first 3x3 ori...

At this article will be created a software written in visual basic for efficiency and penetration calculation in a fibrous filter medium for given values of particles diameter that are retained in the filter. Initially, will become report of mathematical models of air filtration in fibrous filters media and then will develop the code and the graphical interface of application, that are the base...

the compact finite difference schemes have been found to give simple ways of reaching the objectives of high accuracy and low computational cost. during the past two decades, the compact schemes have been used extensively for numerical simulation of various fluid dynamics problems. these methods have also been applied for numerical solution of some prototype geophysical fluid dynamics problems ...