### physical process | processing:

Signal processing
* are physical events.
* is the analysis, interpretation and manipulation of acquired signals
  - used to actually construct an image that can then be interpreted
+ Signal processing, Method of Signal processing: Communication
  * Signal processing is the analysis, interpretation and manipulation of acquired signals. Acquired signals must to be processed depending on the purpose of measurement, a method of measurement, and a property of acquired signals.

Text processing
* is more closely related to book publishing than typewriting.
* refers to the ability to manipulate words, lines, and pages.

Vulcanization
* are processing.
* is the best bonding method for heat transfers
  - crosslinking reaction between the rubber chains and the sulfur
  - process by which soft rubber is converted to a harder, longer-lasting product
  - step that turns a conglomeration of rubber, wire and thread into a tire
  - where crude rubber is turned into elastic material
* process by which latex is heated in the presence of sulfur.

Slippage
* is declines
  - decrease
  - motion
* takes place when the blow falls, causing distinctive scratches.

Wastage
* are decrease
  - loss
* occurs through melting or by large pieces of ice breaking off the face of the glacier
  - when diggers return small or damaged clams back to the sand
* physical process

Physical property
* All physical properties come from the internal arrangement of atoms.
* Physical properties Eugenol more iirritany for tissue than without.
* Physical properties are a function of sediment composition, structure, and porosity
  - characteristics that can be recorded or measured using the senses
  - measures of a material s size, density, porosity and surface texture
  - properties which can be observed without changing the type of matter
  - referred to as observables
  - solubility, volume, length, color, odor, melting point, mass, boiling point
  - the properties of an object that can be observed
  - unlike any other known biological agent
  - used to observe and describe matter
  - usually a function of the particle coordinates and velocities
  - can differ dramatically between bulk and epitaxial phases
* Physical properties describe the characteristics of a substance or any bit of matter
  - elements as they are in their pure form
  - include appearances

Physical quantity
* All physical quantities have units.
* Many physical quantities are vectors, e.g., force, velocity, and momentum
  - have scalar values, e.g., length, area, mass, energy, and electric charge
* Physical quantities are categorized into base quantities and derived quantities
  - properties that can be measured

Physical state
* Any physical state can be as a linear combination of basis vectors of the state space.
* is determined by the combined effects of pressure and temperature.
* refers to whether the toxicant is in the form of a solid, liquid, or gas or vapor.

### physical stress:

Muscle pain
* Some muscle pain relates to tension.
* are a non-specific symptoms
  - extremely common
* can arise from both acute injury and chronic strain
  - be due to a number of other things, including some antiretroviral medicines
* creates physical inactivity, resulting in muscle weakness.
* inhibits cutaneous touch perception.
* is illnesses.
* is oxygen deficiency in muscles
  - deprivation
* occurs while walking and later at rest also.
* physical stress.
* sign of injury.

### physical systems:

Communications system
* Most communications systems are capable of transmitting and receiving.
* are physical systems
  - the lifeblood of any business