The phrase "a electrical" is not correct in written English.
It should be "an electrical" because "electrical" begins with a vowel sound.
Example: "I need to buy an electrical component for my project."
Alternatives: "an electric" or "a power-related".
The electrical stimulation in electroacupuncture and direct nerve stimulation (sciatic and vagus nerves) was performed with a continuous-mode stimulation for 15 minutes with a electrical potential difference of 4 V, an electric current of 40 mA, a pulse width of 50 μs and a frequency of 10 Hz using an electrostimulator.
(a) Electrical pulse-induced resistance change, (b) electric pulse-induced capacitance change, (c) pulses sequences utilizing for concurrent resistive and capacitive state programming.
Anodizing occurs by immersing the titanium in electrically charged water or hooking up the titanium to a electrical power source.
(a) Electrical field distribution at the metal substrate calculated using the FDTD method with the effective medium approximation model for the metamaterials on a Ag substrate by exciting with a 30-nm point dipole located 10 nm from the metal substrate.
An electromechanical mass spring system is devised so as to resonate at the frequency most dominant in the environmental vibration spectrum; the consequent device oscillation is converted to a electrical signal which is harnessed for immediate usage or as a charging mechanism for a battery.
The surfaces of these PDVB particles were modified by the sulfonation reaction to produce sulfonic acid groups (–SO3H), and coated with a thin layer of polypyrrole (PPy), a electrical conducting polymer material, using chemical oxidative polymerization in order to improve their electrical properties as well as adhesion property with metal layer.
