منابع مشابه
Snap Fits and Press Fits
The " ideal " plastic assembly would have all components joined right in the molding shop. Press or snap fitted together by operators at the machine, finished products would be ready for packaging and shipment. While assembly operations in the automotive , machinery or appliance industries are usually a bit more complex, subassemblies frequently will employ snap and press fits—especially when a...
متن کاملShrink-wrap vesicles.
We describe a simple approach to the controlled removal of molecules from the membrane of large unilamellar vesicles made of fatty acids. Such vesicles shrink dramatically upon mixing with micelles composed of a mixture of fatty acid and a phospholipid (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC)), as fatty acid molecules leave the vesicle membrane and accumulate within the mixed mi...
متن کاملThe New HST FITS Format, the FITS Kernel and OpenIRAF
The pipeline calibration of STIS and NICMOS involves a number of changes from how previous HST instrument data were calibrated in the pipeline. These changes include a change in the data formats, what software language and libraries were used to write the programs, and the methods used to access the new data format. This paper will summarize the new STIS and NICMOS data formats, how to access t...
متن کاملShrink Indecomposable Fractals
Iterated Function Systems (IFSs) are among the best-known methods for constructing fractals. The sequence of pictures E0; E1; E2; : : : generated by an IFS fX; f1; f2; : : : ; ftg converges to a unique limit E , which is independent of the choice of starting set E0, but completely determined by the choice of the maps fi. Random context picture grammars (rcpgs) are a method of syntactic picture ...
متن کاملGenomes on the shrink.
B ecause genetic events do not fossilize, we are forced to deduce the evolution of bacterial genomes by comparing the features of contemporary organisms. This comparative approach has exposed many of the alterations endured by bacterial genomes (bouts of expansion and contraction or changes in base compositions), but such reconstructions are often imprecise, and sometimes incorrect, because the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific American
سال: 1902
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06281902-445a