The Karplus-Strong algorithm was developed by Alexander Strong and analyzed by Kevin Karplus as a model of hammered or plucked string instruments. It simulates the sharp impact through a short wideband signal such as a burst of white noise. The signal is fed back through a delay line whose length depends on the frequency of the desired note. The delayed signal is sent through a lowpass filter to attenuate all other frequencies except the frequency of the note and its harmonics.
Concepts
The main concept behind the algorithm is to model the sudden attack of a pluck with white noise containing equal energy in all frequencies. Due to the cavity of the instrument, the instrument material, and various other parameters, only a given frequency and its harmonics will resonate. This is simulated by recursively shaping the output signal. By matching the length of the time delay to correspond with the frequency of the note desired, the output will ultimately sound at the selected frequency given a short period of time. The feedback loop only reinforces the fundamental frequency and its harmonics. This technique is sometimes referred to as a comb filter because of the characteristic shape of the output.
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life