نتایج جستجو برای: expandable additive
تعداد نتایج: 71601 فیلتر نتایج به سال:
Polyamide-6 (PA-6)/graphite nanocomposites were prepared by melt blending, using a variety of graphites, including virgin graphite, expandable graphites and expanded graphite. The resulting nanocomposites were characterized by X-ray diffraction, thermogravimetric analysis, cone calorimetry, and tensile mechanical analysis. Nanocomposite formation does occur, as denoted by the nanometre dispersi...
Programming models based on algorithmic skeletons promise to raise the level of abstraction perceived by programmers when implementing parallel applications, while guaranteeing good performance figures. At the same time, however, they restrict the freedom of programmers to implement arbitrary parallelism exploitation patterns. In fact, efficiency is achieved by restricting the parallelism explo...
An expandable metal stent has been used to treat bronchial collapse due to polychondritis in one patient and extrinsic bronchial compression secondary to bronchogenic tumour in another.
High quality graphenes were prepared from low-cost expandable graphite via a facile hydrazine hydrate or concentrated ammonia-assisted quenching strategy.
BACKGROUND/AIMS The placement of self expandable metal stent (SEMS) is one of the palliative therapeutic options for patients with unresectable malignant biliary obstruction. The aim of this study was to compare the effectiveness of a covered SEMS versus the conventional plastic stent. METHODS We retrospectively evaluated 44 patients with unresectable malignant biliary obstruction who were tr...
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