Agnelo R Silva

6 Questions 14 Answers 0 Followers

Questions related from Agnelo R Silva

What are the reported studies of "non-thermal" techniques for sap-flow measurement in plants?

I am preparing a research survey of methodologies for measurement of sap-flow in plants (from woody to herbaceous). While thermal methods (for instance, heat-pulse and heat-balance) are...

17 March 2018 2,532 5 View

What are the biological hazards (and regulations) of electromagnetic radiation at 100Hz-100kHz ?

I am investigating the biological hazards (and regulations) of electromagnetic radiation close and at LF band (e.g., 100Hz-100kHz). Any literature suggestion?

31 December 2017 1,904 2 View

Do you know about any research associated to the application of Lock-In Amplifiers for the dielectric characterization of materials?

I am working on a methodology that allows the use of LIAs for broadband spectroscopy of materials. Initially, I was not expecting many issues assuming one has enough experience employing Impedance...

22 October 2017 1,463 3 View

Do you know about any study that highlights the aspect "distance between the potential probes" in 4-electrode (tetrapolar) impedance measurements?

The electrode polarization (EP) effects can still be observed in 4E/4T (electrodes/terminals) systems even when platinization and similar methods to increase the surface area of the electrodes are...

21 December 2014 9,771 4 View

Why are platinized electrodes recommended even when 4-electrode are used in low-frequency imp. spectroscopy?

The majority of the literature related to low-frequency impedance spectroscopy recommend the use of four-electrode (4T/4E) measurement systems in order to "eliminate" the electrode polarization...

11 December 2014 7,180 4 View

Efficient light sources for NIR spectroscopy

I have been investigating different options for NIR light sources, such as Tungsten, Tungsten-Halogen (or Quartz Tungsten-Halogen [QTH]), Mercury, and Xenon lamps (continuous and "flash"/pulsed...

01 January 1970 7,119 3 View