The brightness of a flash of light is reduced if it is followed a short time later by a second flash presented to a different region of the retina. Interaction between the rod and cone systems is examined in this after-flash effect for after-flash delays of from 300 to 1000 msec. The data indicate that rod-cone interaction in the effect can occur, and that in the dark-adapted eye the after-flas...

The brightness of a brief flash of light is reduced by the suitable presentation of a second flash in an adjacent region of the visual field. This making effect (metacontrast) can be induced dichoptically, that is with the test flash presented to one eye and the masking flash to the other. By a suitable choice of wavelengths and conditioning field, the test flash may be arranged to effectively ...

NAND flash memory does not support the overwrite operation and thus it deploys the flash translation layer which performs the out-place update. When designing a flash translation layer, memory consumption, computation complexity, and garbage collection overhead should be low. However, the representative sector mapping scheme of flash translation layer, FAST causes a huge computation complexity ...

To take a picture of scene, we acquire multiple images under different levels of flash intensity (possibly just " flash on " and " flash off "), and let the user subsequently adjust the flash level continuously by interpolating among the stored images. Camera motion is corrected using image registration techniques robust to intensity differences. Flash adjustment occurs either immediately on th...

In their report that nearly 50% of healthy young Canadian adults have subnormal serum vitamin C concentrations, Cahill et al. (1) cite our observation that 60% of the acute-care patients in a tertiary care Montreal hospital had subnormal plasma vitamin C concentrations (2). More pertinently, we also observed that only 13% of people concurrently attending the hospital’s outpatient test center ha...

The photochemistry of three 5-allyloxy-tetrazoles, in methanol, acetonitrile and cyclohexane was studied by product analysis and laser flash photolysis. The exclusive primary photochemical process identified was molecular nitrogen elimination, with formation of 1,3-oxazines. These compounds were isolated in reasonable yields by column chromatography on silica gel and were fully characterized. D...

The Flash crowds are rapid increase in access to contents of web sites, which makes the web sites inaccessible, leaving the clients with unsatisfied requests. The major shortcoming of flash crowds researches is that they do not assist vital resizing feature of a cloud of the surrogates; the surrogates involved in the alleviation process do not change from the start to the end of flash crowds. O...

Flash-no-flash imaging aims to combine ambient light images with details available in flash images. Flash can alter color intensities radically leading to changes in gradient directions and strengths, as well as natural shadows possibly being removed and new ones created. This makes flash-no-flash image pair alignment a challenging problem. In this paper, we present a new image registration met...

SUMMARY One way to use NAND flash memory as storage media is a flash file system. In order to design a high-performance flash file system , designing an efficient index structure that constitutes the locations of metadata including directories and files in flash memory is important. For large-capacity storage, the index structure must be stored in the flash memory to achieve low memory consumpt...

66 IEEE ConsumEr ElECtronICs magazInE ^ january 2015 F lash, already one of the dominant forms of data storage for mobile consumer devices, such as smartphones and media players, is experiencing explosive growth in cloud and enterprise applications. Flash devices offer very high access speeds, low power consumption, and physical resiliency. Flash technology has improved at a dramatic rate over ...