How are strains developed?

Strain development involves mutation and selection of mutants. For a successful strain improvement program, however, some additional aspects should be considered before starting with mutation techniques; most are obvious and basic but to ignore them would lessen the effectiveness of the program.

Which is more important stress or strain?

To begin with these questions, consider the fact that first we have to apply a force to an object and it is only then that the object is observed to have been deformed or strained. Accordingly, one may say that forces produce strains, and therefore, it seems that stress has to be more fundamental.

Is strain caused by stress?

Stress can cause strain, if it is sufficient to overcome the strength of the object that is under stress. Strain is a change in shape or size resulting from applied forces (deformation).

What is health strain?

A strain is when a muscle is stretched too much and tears. It is also called a pulled muscle. A strain is a painful injury. It can be caused by an accident, overusing a muscle, or using a muscle in the wrong way.

What is strains in biology?

A strain is a genetic variant or subtype of a microorganism (e.g., a virus, bacterium or fungus). New viral strains can be created due to mutation or swapping of genetic components when two or more viruses infect the same cell in nature.

Which is an example of strain?

An example of strain is a pulled muscle. An example of strain is reading a book in the dark, causing pressure on the eyes. To injure or impair by overuse or overexertion; wrench. A wrench, twist, or other physical injury resulting from excessive tension, effort, or use.

Which comes first between stress and strain?

The knowledge of both stress and strain is very important in design as their relationship to each other defines the mechanical properties of a material. But which comes first between Stress and Strain is really a very confusing question to many. Whenever a force is applied to a body, Stress, and Strain both are believed to occur.

Which comes first strain or deformation?

According to the above assumption, both Area and Original Length is constant. So the above Stress-Strain curve can be considered as a Force vs deformation curve. Which means Force is creating the deformation. So from the above discussions, it is clear that Strain comes first, and then Stress is generated.

What causes stress in the human body?

most probably stress will occur because when the force in applied on the body it tends to change its shape and size. it also depends on youngs modulus of that body. Body will not deform untill the the force rises more than its bearing level and thus it (force) causes the strain in the body.

What is the main contributing factor for the generation of stress?

From the above paragraphs, it is clear that for the generation of Stress or Strain, the main contributing factor is the Force, F. So force is the cause. And Once force is applied, it tries to deform the body instantaneously. So obviously, deformation or change in length will come first.