The subdivision of a grain into small discrete crystallites outlined by a heavily deformed network of intersecting slip bands as a result of cold working These small crystals or fragments differ from one another in orientation and tend to rotate to a stable orientation detemined by the slip systems
Condition that occurs on a disk drive when files have been stored in noncontiguous clusters on a disk Occurs, as files become too large to fit back into their original clusters The effect is destraded performance caused by inefficient excessive seeks, cured via disk "optimization"
Market condition when there is no dominant group of buyers or suppliers, or both High Fragmentation is usually associated with low information transparency and industries that have this characteristic are good candidates for an exchange to provide a more efficient market
"the process by which a landscape is broken into small islands of forest within a mosaic of other forms of land use or ownership--note e g islands of a particular age class (e g , old growth) that remain within areas of younger-aged forest -- note fragmentation is a concern because of the effect of noncontiguous forest cover on connectivity and the movement and dispersal of animals in the landscape" - definition from John A Helms, ed , 1998 The Dictionary of Forestry The Society of American Foresters, Bethesda MD
the breaking up of large and continuous ecosystems, communities, and habitats into smaller discontinuous areas that are surrounded by altered or disturbed lands or aquatic features
The segmentation of a large tract or continuous tracts of forest to smaller patches often isolated from each other by nonforest habitat Results from the collective impact of residential and commercial development, highway, and utility construction, and other piecemeal land use changes
The scattering of parts of the same disk file over different areas of the disk Fragmentation occurs as files on a disk are deleted and new files are added It slows disk access and degrades the overall performance of disk operations, although usually not severely See also defragmentation
the process of transforming large continuous forest patches into one or more smaller patches surrounded by disturbed areas This occurs naturally through such agents as fire, landslides, windthrow and insect attack In managed forests timber harvesting and related activities have been the dominant disturbance agents
The scattering of data over a disk caused by successive insert, update and delete operations This eventually results in slow data access times as the disk needs to do more work to construct a contiguous copy of the data on disk A database reorganization is sometimes required to fix fragmentation problems
Storing files noncontiguously on a disk Fragmentation increases the time it takes to read a file since the disk has to rotate more and the disk read heads have to seek more
In a kernel or language which allows for memory allocation and deallocation, the available free memory can eventually become fragmented, i e , non-contiguous, if memory is allocated from one large pool For example after allocating and deallocating many different size blocks of memory, there may be 12K available, but it is not contiguous, and therefore, if software needs 12K it cannot use it, even though it is available Contrast with fixed block memory allocation
Scattering of data over a hard disk caused by successive recording and deletion operations Generally this will eventually result in slow data recall - a situation not suitable for video recording or replay
The technique IP uses to divide a large datagram into smaller datagrams called fragments The destination is responsible for reassembling the fragments into a complete message This prevents overly large packets from monopolizing the network bandwidth, by breaking them up into pieces that have to compete for network bandwidth equally with every other message
The breaking up of a large space -- a hard drive or onboard RAM memory -- into smaller, disconnected chunks of space that prevent data from being stored in one continuous area Fragmentation can cause operational problems
The splitting or isolating of patches of similar habitat, such as old-growth forests Habitat are usually fragmented from forest management activities, such as clearcut logging
{i} breaking up; crushing; division into segments; partitioning; shattering into pieces; condition in which a file is scattered in segments on the surface of a hard drive (Computers)
A condition in which parts of a file are stored in different locations on a disk When a file is fragmented, the drive's read/write head has to jump from place to place to read the data; if many files are fragmented, it can slow the drive's performance The problem can be resolved using a disk optimizer or defragmenter (ie Norton Utilities)
The process in which an IP datagram is broken into smaller pieces to fit the requirements of a given physical network The reverse process is termed "reassembly" See MTU
The splitting or isolating of patches of similar habitat, typically forest cover, but including other types of habitat Habitat can be fragmented naturally or from forest management activities, such as clearcut logging
(computer science) the condition of a file that is broken up and stored in many different locations on a magnetic disk; "fragmentation slows system performance because it takes extra time to locate and assemble the parts of the fragmented file"
the scattering of bomb fragments after the bomb explodes (computer science) the condition of a file that is broken up and stored in many different locations on a magnetic disk; "fragmentation slows system performance because it takes extra time to locate and assemble the parts of the fragmented file"
the breaking up of large habitats into smaller, isolated chunks Fragmentation is one of the main forms of habitat destruction, which is the primary reason biodiversity is in decline
The process in which an IP datagram is broken into smaller pieces to fit the requirements of a given physical network The reverse process is termed reassembly See MTU