Search results 15417 items matching your search terms. Filter the results Item type Select All/None Event Page Folder GLD Company Collection New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically At left, an illustration of the tangled nature of the polymer filaments, with heat-stopping voids indicated as dark blobs. When drawn and heated into a thin thread (right), the molecules line up and the voids are compressed, making the material a good conductor. Located in media Figure 4 - Often as an application specific heatsink, it is best to use an adapted standard heatsink. Located in media Figure 3 - The diagram shows the thermal resistance of a heatsink as subject of the size. Located in media Figure 2 - Some standard heatsinks out of a broad range. Located in media Figure 1 - Luminous flux vs ambient temperature for red LED by constant current (according to documents from the company Lumileds ). Located in media HOW IT WORKS: Conventional and magnetic refrigeration cycles use different physical effects to cool things off. [Top] When a gas is compressed (2), it heats up, but if it is cooled and then allowed to expand (3), its temperature drops much lower than it was originally (4); this principle keeps food in your home refrigerator cool. But a magnetocaloric material [bottom] heats up when magnetized (b); if cooled and then demagnetized (c), its temperature drops dramatically (d). Located in media HOW IT WORKS: Conventional and magnetic refrigeration cycles use different physical effects to cool things off. [Top] When a gas is compressed (2), it heats up, but if it is cooled and then allowed to expand (3), its temperature drops much lower than it was originally (4); this principle keeps food in your home refrigerator cool. But a magnetocaloric material [bottom] heats up when magnetized (b); if cooled and then demagnetized (c), its temperature drops dramatically (d). Located in media Figure 4: Current and temperature dependence of the WPE of a red Dragon LED (measured by Mentor Graphics MicReD). Located in media Figure 3: Sketches of some mainstream power LED packages. Located in media Figure 2: Junction-to-X thermal resistance calculated from a temporal difference of the junction temperature and the power dissipated in the device. Located in media < Previous 10 items 1 ... 1258 1259 1260 1261 1262 1263 1264 ... 1542 Next 10 items > Subscribe to an always-updated RSS feed.
