25 Questions 29 Answers 0 Followers
Questions related from Roland Macana
What is fire? Causes? Prevention?
16 May 2018 3,532 9 View
How can you control weeds in wide farms? What is the best method of controlling weeds? Chemical method sometimes failed because weeds develop resistance on it over time. Now, what is the best...
16 May 2018 5,142 18 View
How are waves produced in RF generator?
31 March 2018 9,402 6 View
RF transparent materials are materials where RF fields can penetrate with no heating happen. So far, I know some like Teflon, PPL, PVC, and ABS. They are made of plastics and have almost 0...
31 January 2018 8,722 17 View
What is the best insulating material for high temperature ( 200 degrees Celsius)?
29 January 2018 9,339 9 View
What is your idea on protein denaturation after microwave or radio frequency heating?
26 January 2018 9,954 3 View
How can we relate photon in electromagnetic waves? What is photon in Radio waves? Waves can be describe by its wavelength, frequency, and energy (electron-volt). I am just wondering about this...
04 January 2018 6,428 20 View
Is expanded steel metal a magnetic material? Can it shield RF electric field and magnetic field?
20 December 2017 323 3 View
Aside from Iron in blood, what are the magnetic materials in human body?
19 December 2017 7,184 4 View
Does magnetic field can heat the human body? According to the International Commission on Non-Ionizing Radiation protection (ICNIRP), there is a maximum allowable magnetic field exposure to our...
18 December 2017 5,187 94 View
What is the specific heat of canola seeds?
14 December 2017 6,550 3 View
What is the maximum distance of the conductor to transfer voltage and current from other conductor?
11 December 2017 6,926 12 View
Waves can move at a speed of light. However, I am not sure if waves can travel more than its wavelength considering it is an open space.
11 December 2017 5,365 11 View
specific heat of wheat
26 October 2017 7,465 3 View
Why is it thermal camera did not work when RF heating is on? Is there interference of the signal in the camera? Is the RF leakage can damage the camera?
26 October 2017 2,342 13 View
Why is there RF leakage in the shielding? The shielding is aluminum meshed metal and it has holes. However, the holes are very small compared to the wavelength of RF. My understanding is that RF...
25 October 2017 788 1 View
RF wavelength relationship of electric field and magnetic field.
12 October 2017 474 2 View
I am interested of your answer on the mechanism of electric field and magnetic field in RF heating. The principle of RF heating is similar in microwave heating.
12 October 2017 8,258 3 View
Radio frequency heating is composed of generator and applicator. The applicator is where the materials are being heated and the generator produces alternating charges to the two opposite...
10 October 2017 1,521 3 View
The length of the wave in radio frequencies is in meters. It is greater than microwave which wavelength is in centimeters. At 27.12 MHz in radio frequency, for example, the wavelength is around 11...
05 October 2017 7,577 8 View
I am just wondering on what are the factors affecting the inductance in a coil. Based on my experience, loop diameter, wire diameter, number of turns, and gap between turns will affect affect the...
28 September 2017 3,040 7 View
What is the dielectric constant and loss factor of air at radio frequency (1-30 MHz) and ambient temperature?
14 September 2017 2,910 2 View
I have read articles of dielectric loss factor and dielectric constant of water at microwave range frequencies only.
07 September 2017 2,053 8 View
What is the best method of controlling the insect pests in stored agricultural materials?
20 April 2017 8,964 29 View
Rusty grain beetle is one of the common insect pests in stored grains worldwide. I am curious of the lifespan of this pest. Anybody here in RG knows it?
01 January 1970 5,685 5 View
