Small vegetated drainage ditches play an important role in water and nutrient removal, but may cause water blocking problems. The aim of this study was to investigate vegetated drainage ditches’ hydraulic and wetland hydraulic characters. Field experiment were carried out, small drainage ditches with Juncus, Zizania latifolia, and Acorus calamus were selected under different water flows, and a ...

Preferential flow through soil macropores in tile drained soils can significantly increase the risk of pollution of surface water bodies by agricultural chemicals such as pesticides. While many field studies have shown the importance of preferential flow in tile-drained fields, few have included detailed numerical modelling of the processes involved. The objective of this study was to compare f...

Why a catheter can be correctly placed in the ventricle by inserting perpendicular to the frontal bone on the ventricular drainage? We performed a study on the accuracy of a path perpendicular to the skull surface into the anterior horn using computed tomography (CT), and a clinical study. Twenty patients were studied on CT images. Using the curved multi-planar reconstruction method, the curved...

BACKGROUND The superior petrosal vein, one of the most constant and largest drainage pathways in the posterior fossa, may result in complications if occluded. This study calls attention to a unique variant in which the superior petrosal veins and sinus were absent unilaterally, and the venous drainage was through the galenic and tentorial drainage groups. METHODS This study examines one venog...

Drainage systems play an important role in the development of managing surface runoff water. This is because without proper management drainage system, it can cause flooding area. Universiti Tun Hussein Onn Malaysia (UTHM) has suffered floods and caused significant losses. Therefore, purpose this article to study types available around UTHM In regard, semi-structured interviews were conducted w...

S . . . . . . . . . . . . . . . . . . . . . . . Mine Drainage abstracts, listed alphabetically by last name of first author. Page numbers are listed in Author Index at the back of this volume. AUTHOR INDEX . . . . . . . . . . . . . . . ,431433 A ac Bq bu cal cm cmol CPS "C d dS ft g gal P d P m h ha hL hp Hz in J K kcal kg kHz km kmt kN kPa kV L lb m M rnA me'l UNIT OF MEASURE ABBREVIATIONS USE...

a subsurface drainage network mainly carries unsteady flow and data are not usually available for model parameters calibration in such networks. in the present research, the finite volume method using the time splitting scheme was employed to develop a computer code for solving the one dimensional unsteady flow equations. using corrugated sub drainage pipes, an experimental prototype setup was ...

This paper proposes a method to improve landscape-pollution interaction regression models through the inclusion of a variable that describes the spatial distribution of a land type with respect to the pattern of runoff within a drainage catchment. The proposed index is used as an independent variable to enhance the strength, as quantified by R2 values, of regression relationships between empiri...