An icosahedral Al−Pd−Mn quasicrystal sample is laser vaporized to form metal clusters by gas aggregation. The clusters are subsequently laser ionized and mass analyzed in a time-of-flight mass spectrometer. The mass spectra show cluster compositions which are qualitatively similar to that of the sample. This is consistent with a kinetically controlled cluster growth process. Cluster thermodynam...

We report the reduction of graphene oxide (G-O) films on Al foil using hydrogen as a reducing agent generated during the etching of Al foil in an aqueous solution of hydrochloric acid (HCl). Complete etching of the Al substrate results in simultaneous reduction and a free standing film composed of stacked and overlapped reduced graphene oxide (RG-O) platelets. Generation of hydrogen at the G-O/...

the literary works criticism in the contemporary era has had a significant development. thus the critical schools and approaches such as structuralism, deconstruction and etc. were founded.  these approaches were not unique in the new texts but they have been generalized to the ancient texts as well. one of these important schools were structuralism followed by methodology. methodology studies ...

A mong cytoskeletal systems, the intermediate filaments (IFs) 1 are unique because they are composed of different proteins in different tissues. These proteins share a common tripartite structure composed of an NH 2 -terminal head domain, a coiled-coil rod domain, and a COOH terminus of varying length. They are subdivided into six IF classes according to their amino acid sequence similarity (fo...

Electrolyte is a key material for success in the research and development of next-generation rechargeable batteries. Aluminium rechargeable batteries that use aluminium (Al) metals as anode materials are attractive candidates for next-generation batteries, though they have not been developed yet due to the lack of practically useful electrolytes. Here we present, for the first time, non-corrosi...

Pharmacy which is an art and science of preparing and dispensing drugs and Materia Medica gives the names, sources physical characters and chemical properties of herbs or substances used in medicine and their doses have been interwoven connected with medicine from the time immorial. This can be traced back to the findings of ancient Egyptian and Unani Physician like Hippocrates (460-377 B.C) Di...

In this study we present a technique for testing robustness of Real-time systems described as Component-Based System having timing constraints. Each component is modeled as a Timed Input-Output Automaton (TIOA). For robustness issue, we handle two specifications : a nominal one (the more detailed specification) and a degraded one (considering only vitale functionnalities). We derive test sequen...

⎯ The paper deals with the relations between knowledge management, uncertainty and the context evaluation on the background of computer science, artificial intelligence and the new possibilities of information technologies that can help us to carry out the knowledge management strategies. The paper discuss the problem of wide context (temporal, spatial, local, objective, attribute oriented, rel...

amyloidosis is a disorder of protein metabolism characterized by extracellular deposition of abnormal protein fibrils. it may either be localized to any organ or systematically distributed throughout the body. the biochemical nature of proteins varies but the physical and tinctorial properties are shared by all the amyloidogenic proteins. in the west, it is mainly composed of amyloid light (al)...