Active camouflage ( or adaptive camouflage ) is a group of camouflage technologies which would allow an object ( usually military in nature ) to blend into its surroundings by use of panels or coatings capable of changing color or luminosity.

Active camouflage can be seen as having the potential to become the perfection of the art of camouflaging things from visual detection.

Zebrafish chromatophores mediate Active camouflage | background adaptation on exposure to dark ( top ) and light environments ( bottom ).

# REDIRECT Active camouflage

Active camouflage or adaptive camouflage is camouflage that adapts, often rapidly, to the surroundings of an object such as an animal or military vehicle.

Active camouflage is used in several groups of animals, including reptiles on land, and cephalopod molluscs and flatfish in the sea.

Active camouflage provides concealment in two ways:

Active camouflage may now develop using organic light-emitting diodes ( OLEDs ) and other technologies which allow for images to be projected onto irregularly-shaped surfaces.

Active camouflage technology exists only in theory and proof-of-concept prototypes.

Active camouflage is present in several groups of animals including cephalopod molluscs, fish, and reptiles.

Active camouflage is also used by many bottom-living flatfish such as plaice, sole, and flounder that actively copy the patterns and colors of the seafloor below them.

# REDIRECT Active camouflage

# redirect Active camouflage

# REDIRECT Active camouflage

# redirect Active camouflage

# REDIRECT Active camouflage

# REDIRECT Active camouflage

# REDIRECT Active camouflage

# redirect Active camouflage

An object is uniquely identified by its name and has a set of attributes — the characteristics and information that the object represents — defined by a schema, which also determines the kinds of objects that can be stored in Active Directory.

As a response to the increased global sedentarity and consequent overweight and obesity, one response that has been adopted by many organizations concerned with health and environment is the promotion of Active travel, which seeks to promote walking and cycling as safe and attractive alternatives to motorized transport.

Constructivism itself has many variations, such as Active learning, discovery learning, and knowledge building.

ETHZ has released Active Oberon which supports active objects, and the Bluebottle operating system and environment ( JDK, HTTP, FTP, etc.

From the late 2000s on, a Theory of Active Peace has been proposed which conceptually integrates justice into a larger peace theory.

A comprehensive study to date by Robert Freitas and Ralph Merkle has identified 137 design dimensions grouped into a dozen separate categories, including: ( 1 ) Replication Control, ( 2 ) Replication Information, ( 3 ) Replication Substrate, ( 4 ) Replicator Structure, ( 5 ) Passive Parts, ( 6 ) Active Subunits, ( 7 ) Replicator Energetics, ( 8 ) Replicator Kinematics, ( 9 ) Replication Process, ( 10 ) Replicator Performance, ( 11 ) Product Structure, and ( 12 ) Evolvability.

Active acoustic torpedoes home in on the reflection of a signal, or " ping ", from the torpedo or its parent vehicle ; this has the disadvantage of giving away the presence of the torpedo.

The Windows 2000 Server family has additional features, including the ability to provide Active Directory services ( a hierarchical framework of resources ), Distributed File System ( a file system that supports sharing of files ) and fault-redundant storage volumes.

Since late July 2010, when Fox began to broadcast their sports programming with graphics optimized for 16: 9 displays rather than the 4: 3 safe area, the network has asked cable and satellite providers to comply and use the No. 10 Active Format Description code they now send out over Fox programming, which has 16: 9 content display in letterboxed mode on 4: 3 screens and has graphical elements optimized for the 16: 9 screen.

Every destination in the topology table can be marked either as " Passive ", which is the state when the routing has stabilized and the router knows the route to the destination, or " Active " when the topology has changed and the router is in the process of ( actively ) updating its route to that destination.

The destination changes back from Active to Passive when the router received replies to all queries it has sent to its neighbors.

Therefore, the router has to transition to Active state and ask its neighbors for a new route to the destination X.

" The Robert Wood Johnson Foundation has established the Active Living by Design program to improve the livability of communities in part through the trails, both in a more traditional sense, as is being done by the Upper Valley Trails Alliance or in the broader, as is being done by Groundwork Somerville.

Each of the four main divisions of the company has its own chairman and CEO, with Lagardère Publishing led by Arnaud Nourry, Lagardère Active by Denis Olivennes, Lagardère Services by Dag Rasmussen and Lagardère Unlimited by Arnaud Lagardère.

The Gulfport station has 110 members which include Active, Reserve and Coast Guard Auxiliary.

The pictured Humvee has been fitted with the Active Denial System.

He performed in the BBC radio comedy series Radio Active ( 1980 – 87 ) and has also starred in a number of TV comedy shows, including Who Dares Wins ( 1983 – 88 ), Chelmsford 123 ( 1988 – 90 ) and KYTV ( 1989 – 93 ) Round the Bend ( 1989 – 1991 ).

Retro Active has sold 3 million copies worldwide to date.

Active differentials used to play a large role in the World Rally Championship, but in the 2006 season the FIA has limited the use of active differentials only to those drivers who have not competed in the World Rally Championship in the last five years.

Active today, the corps acts as a subordinate headquarters of United States Army Forces Command, and has also seen deployment in support of Operation Iraqi Freedom.

Israel has developed the IAI / Elta EL / M-2075 Phalcon system, which uses an AESA ( Active Electronically Scanned Array ) in lieu of a rotodome antenna.

The ThinkPad has introduced innovations, including the TrackPoint pointing device, the ThinkLight, a LED keyboard light at the top of the LCD screen, the Active Protection System, an accelerometer sensor which detects when a ThinkPad is falling and shuts down the hard disk drive to prevent damage, roll cage design to minimize motherboard flex, stainless steel hinges, a biometric fingerprint reader, Client Security Solution, which improves security using a built-in Trusted Platform Module ( TPM ) and facilitates deployment in corporate environment, the ThinkVantage Technologies suite of computer management applications, and drain holes to help reduce damage to the keyboard and components from accidental spillage.