Determination of transpiration in irrigated grapevines: comparison of the heat-pulse technique with gravimetric and micrometeorological methods

2000 ◽  
Vol 20 (1) ◽  
pp. 1-8 ◽  
Author(s):  
I. A. M. Yunusa ◽  
R. R. Walker ◽  
B. R. Loveys ◽  
D. H. Blackmore
Keyword(s):  
Heat Pulse ◽  
Pulse Technique

A heat pulse technique for the determination of small-scale flow directions and flow velocities in the streambed of sand-bed streams

2011 ◽  
Vol 25 (20) ◽  
pp. 3244-3255 ◽  
Author(s):  
Jörg Lewandowski ◽  
Lisa Angermann ◽  
Gunnar Nützmann ◽  
Jan H. Fleckenstein
Keyword(s):  
Heat Pulse ◽  
Small Scale ◽  
Pulse Technique ◽  
Flow Directions ◽  
Flow Velocities

scholarly journals CALIBRATING THE COMPENSATION HEAT-PULSE TECHNIQUE FOR MEASURING SAP FLOW IN OLIVE

1999 ◽  
pp. 455-460 ◽  
Author(s):  
J.E. Fernández ◽  
M.J. Palomo ◽  
A. Díaz-Espejo ◽  
I.F. Girón
Keyword(s):  
Sap Flow ◽  
Heat Pulse ◽  
Pulse Technique

Evaluation of Synchronous Twin Pulse Technique for Shock Wave Lithotripsy: Determination of Optimal Parameters for In Vitro Stone Fragmentation

2003 ◽  
Vol 170 (6) ◽  
pp. 2190-2194 ◽  
Author(s):  
KHALED Z. SHEIR ◽  
NASIM ZABIHI ◽  
DAVID LEE ◽  
JOEL M. TEICHMAN ◽  
JAMIL REHMAN ◽  
...  
Keyword(s):  
Shock Wave ◽  
Shock Wave Lithotripsy ◽  
Optimal Parameters ◽  
Pulse Technique ◽  
Stone Fragmentation

A negative heat pulse technique (for phonon studies)

1974 ◽  
Vol 7 (9) ◽  
pp. 701-702
Author(s):  
A K R Bromley ◽  
J K Wigmore
Keyword(s):  
Heat Pulse ◽  
Pulse Technique

Measuring peat moisture content using the dual-probe heat pulse technique

Soil Research ◽  
2002 ◽  
Vol 40 (1) ◽  
pp. 177 ◽  
Author(s):  
David I. Campbell ◽  
Claire E. Laybourne ◽  
Ian J. Blair
Keyword(s):  
Moisture Content ◽  
Gravimetric Method ◽  
Heat Pulse ◽  
Time Domain Reflectometry ◽  
Peat Soils ◽  
Pulse Technique ◽  
Mineral Soils ◽  
Reference Measurements ◽  
High Level ◽  
Dual Probe

The dual-probe heat pulse (DPHP) technique for measuring soil volumetric moisture content (Θv) is evaluated for use in peat soils with very high organic matter contents. The method has a greater sensitivity in peat soils compared with mineral soils and excellent resolution is possible, even at moisture contents as high as 90% by volume. Advantages of the DPHP technique are that sensors are simple to construct from inexpensive parts and calibration is not required since the method is based on a physical model of radial heat flow in soil. A multiplexer method was developed to allow multiple probes to be deployed in the field. DPHP measurements of Θv for small peat samples compared closely to reference measurements made using the gravimetric method, and in the field were similar to results obtained using a time domain reflectometry (TDR) method. Peat soils display a high level of spatial variation in Θv at the scales of both DPHP and TDR probes, so that multiple probes of each type are required for adequate spatial sampling of Θv. Rapid changes in peat moisture content were recorded following rainfall infiltration events yet moisture storage did not remain elevated following rainfall, even for peat that was very dry. wetlands, hydrology, soil moisture.

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