Dy
- Dy
- Dysprosium is a silvery metal of the lanthanide group. It is relatively stable in air, reacts violently with water and dissolves in acids.
- Dye Penetrant
- Penetrant with dye added to make it more readily visible under normal lighting conditions.
- Dymel A
- Alternative name for Dimethyl Ether.
- Dynamic Creep
- Creep that occurs under fluctuating load or temperature.
- Dynamic Data Exchange
- A protocol for allowing different software applications or programs to share information.
- Dynamic Equilibrium
- Equilibrium which includes inertial forces.
- Dynamic Friction
- Resistance to relative movement of two bodies that are already in motion.
- Dynamic Headroom
- The ability of an audio device to respond to musical peaks.
- Dynamic Host Configuration Protocol
- A protocol used to retrieve startup information such as a subnet mask and IP address from a DHCP server.
- Dynamic Load
- A load imposed by dynamic action, as distinguished from a static load.
- Dynamic Mass
- Ratio of applied force to resulting acceleration during simple harmonic motion.
- Dynamic Microphone
- A device in which sound waves move a coil of fine wire that is mounted on the back of a diaphragm and located in the magnetic field of a permanent magnet.
- Dynamic Modulus
- Ratio of stress to strain under vibratory conditions.
- Dynamic Pressure
- The pressure of a fluid resulting from its motion when brought to rest on a surface.
- Dynamic Range
- The power range over which a component or system functions properly.
- Dynamic Sealing
- Vehicle door seals must function when the aerodynamic load on the door pulls the door away from the seals.
- Dynamic Stiffness
- Ratio of force to unit displacement during simple harmonic motion.
- Dynamic Unbalance
- The condition which exists when unbalanced masses on a shaft or its attachments create a couple on the shaft when it rotates.
- Dynamic Vibration Absorber
- A dynamic vibration absorber is an auxiliary mass-spring system which tends to
neutralise vibration of a structure to which it is attached.
- Dynamic viscosity
- That molecular property of a fluid which enables it to support tangential stresses for a finite time and thus to resist deformation.
- Dynamite
- A blasting explosive, based on nitroglycerine, but much safer to handle than nitroglycerine alone.
- Dynamometer
- A device for determining the power of an engine.
- Dyne
- A force of 1 dyne acting on a mass of 1g imparts an acceleration of 1cms-2.
- Dysprosium
- A silvery metal of the lanthanide group. It is relatively stable in air, reacts violently with water and dissolves in acids.