Technical Note: Evaluation of an Indoor Nozzle-Type Rainfall Simulator

2007 ◽  
Vol 23 (3) ◽  
pp. 283-287 ◽  
Author(s):  
L. N. Birt ◽  
R. A. Persyn ◽  
P. K. Smith
CATENA ◽  
2016 ◽  
Vol 140 ◽  
pp. 77-89 ◽  
Author(s):  
Marco Lora ◽  
Matteo Camporese ◽  
Paolo Salandin

2015 ◽  
Vol 26 (6) ◽  
pp. 604-612 ◽  
Author(s):  
Tamás Lassu ◽  
Manuel Seeger ◽  
Piet Peters ◽  
Saskia D. Keesstra

2003 ◽  
Vol 28 (13) ◽  
pp. 1483-1490 ◽  
Author(s):  
Bofu Yu ◽  
Cyril A. A. Ciesiolka ◽  
Paul Langford

1998 ◽  
Vol 51 (5) ◽  
pp. 531 ◽  
Author(s):  
Gary W. Frasier ◽  
Mark Weltz ◽  
Laura Weltz

2020 ◽  
Author(s):  
Felix Gemlack Ngasoh ◽  
Constantine Crown Mbajiorgu ◽  
Matthew Boniface Kamai ◽  
Gideon Onyekachi Okoro

Different means of hydrological data collection have developed and used. However, they are constraint in one way or other. This paper therefore revisited the rainfall simulator as potential tool for hydrological research. The research disclosed that there are three different types of rainfall simulators; drop former simulator, pressure nozzle simulator and hybrid simulator. It can further be classified as indoor model and outdoor. The research also showed that precipitation is the driving force in hydrological studies. Consequently, in the design of rainfall simulator, the following should be taken into consideration: nozzle spacing, pump size, nozzle size, nozzle type, nozzle spacing, plot size and pressure. Meanwhile, intensity, distribution uniformity, kinetic energy, rainfall drop size and rainfall terminal velocity should be noted in its evaluation. Factoring-in the aforementioned design considerations, data collection is made easy without necessarily waiting for the natural rainfall. Since the rainfall can be controlled, the erratic and unpredictable changeability of natural rainfall is eliminated. Emanating from the findings, pressurized rainfall simulator produces rainfall characteristics similar to natural rainfall, which is therefore recommended for laboratory use if natural rainfall-like characteristics is the main target.


2012 ◽  
Vol 21 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Susan Fager ◽  
Tom Jakobs ◽  
David Beukelman ◽  
Tricia Ternus ◽  
Haylee Schley

Abstract This article summarizes the design and evaluation of a new augmentative and alternative communication (AAC) interface strategy for people with complex communication needs and severe physical limitations. This strategy combines typing, gesture recognition, and word prediction to input text into AAC software using touchscreen or head movement tracking access methods. Eight individuals with movement limitations due to spinal cord injury, amyotrophic lateral sclerosis, polio, and Guillain Barre syndrome participated in the evaluation of the prototype technology using a head-tracking device. Fourteen typical individuals participated in the evaluation of the prototype using a touchscreen.


1998 ◽  
Vol 47 (3) ◽  
pp. 153-160
Author(s):  
Wang ◽  
Park ◽  
Kang ◽  
Oh
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