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simplex Definition

sim·plex (sim′pleks′)

adjective

  1. having only one part; not complex or compounded
  2. designating or of a system of telegraphy, telephony, etc. in which a signal can be transmitted in only one direction at a time

Etymology: L, simple < IE base *sem-, one + *plak-: see duplex

noun pl. -·plexes or -·pli·ces′-plə sēz′

Math. an element or figure contained within a Euclidean space of a specified number of dimensions and having one more boundary point than the number of dimensions (Ex.: a simplex of zero dimensions is a point, of one dimension is a line segment, of two dimensions is a triangle and its interior, of three dimensions is a tetrahedron and its interior)

simplex Telecom Definition
  1. A transmission path or circuit designed to support information transfer in one direction only. Physically, the circuit may be able to support duplex, or two-way, information transfer, but the equipment on either end will not allow it. In other words, the protocol is simplex. Burglar alarm, intrusion alarm, and fire alarm circuits are simplex in nature, as they are designed to support information transfer from a sensor to a central alarm answering point, but will not support information transfer in the reverse direction. It would be unwise to reset such an alarm remotely without a physical inspection. Rather, the cause of the alarm must be analyzed by a human being who is physically present at the alarm point.The human being can then reset the alarm locally.Two simplex circuits, one in each direction, can be used to provision a full duplex circuit, i.e., a circuit that supports simultaneous transmission in both directions. See also duplex, full duplex, half duplex, and protocol.
  2. A fiber optic transmission system (FOTS) using a single single-mode fiber (SMF) for transmission in both directions and perhaps supporting multiple wavelengths. Passive optical network (PON) standards, for example, include a simplex option. In this configuration, the downstream transmissions are supported in the 1480
simplex Usage Examples

Converse of object

  • include: Vitamin C was also able to inactivate other viruses in vitro, including herpes simplex, rabies, and tobacco mosaic virus.
  • have: Having herpes simplex is normal It is no different to other herpes viruses: all of us have at least three of them.

Adjective modifier

  • sparse: Linear programming problems are processed by sparse simplex ( SSX ) with both PRIMAL and DUAL variants.
  • dual: Primal and dual simplex The revised simplex algorithm is one example of a primal simplex algorithm.
  • recurrent: If a patient has had problems with recurrent facial herpes simplex, can a RESTYLANE treatment contribute to another herpes simplex eruption?

Adjective complement with noun phrase

  • have: Most of us have had chickenpox, most of us have had herpes simplex 1 or 2 or both.

Modifies a noun

  • encephalitis: Her doctor, Dr. Green, diagnosed herpes simplex encephalitis.
  • virus: How does the herpes simplex virus affect the body?
  • algorithm: The dual simplex algorithm is related to the dual of the LP.
  • infection: Have you ever had a herpes simplex virus infection of the eye?
  • genome: During this time he investigated the presence of herpes simplex virus genome in cervical cancer, graduating MD in 1983.
  • type: On the face, herpes simplex type 1 is more likely to recur than type 2. How can it recur?

Modifying Another Word

  • downhill: The downhill simplex method is not as efficient as Powell's method, and usually requires more function evaluations.

Noun used with modifier

  • herpes: How does the herpes simplex virus affect the body?
  • virus: Back to the top Cold Sores These are caused by the virus herpes simplex.
  • infection: Herpes gestationis Herpes gestationis is a rare disease that is not related to the viral infection herpes simplex.
  • frequency: Dual frequency simplex operation was used, so posts could not communicate with each other.