There are warning signs for impending scarcity of certain technology metals that play a critical role in high-tech products. The scarce elements are indispensable for the design of modern technologies with superior performance. Material scarcity can restrain future innovations and presents therefore a serious risk that must be counteracted. However, the risk is often underrated in the pursuit o...

traceability is a basic requirement for the most of products from the viewpoint of governments and customers. it has base of quality systems and supports integration of supply chain information systems. this paper has presented a holistic model for supply chain traceability through structural equation modeling. this model will support recall of products, quality assurance requirements, improve ...

this study investigated the manifestation of bloom’s revised taxonomy (brt) in two series of young and adult teaching persian to speakers of other languages (tpsol) textbooks. to this end, the contents of the textbooks were analyzed based on a coding scheme. the results showed statistically significant differences between the different volumes of young learners’ series and between the two serie...

Simulation codes in Computational Mechanics employ libraries of materials that model their constitutive response. At the same time, many researchers and code developers in this discipline continue to implement their own advanced material models. However, to the best of the authors’ knowledge, there is no way to access this body of knowledge and accumulated experience since computer implementati...

THE demonstration and descrip tion of effectiveness are principal concerns of every curriculum evaluation. The evalu ation designs constructed and used b> I'^e experimental curriculum developers to ac complish these purposes assume mony ^r,d varied modes. Examples of this variability are observable in the published literature describing experimental science curriculum projects such as the Ameri...

Of the four English language skills that are often taught separately, listening requires more efforts from both course developers and learners. Unlike courses for other skills, which are mostly paper-based, listening courses are a combination of paper-based materials in the form of a course book, and sound-based materials in the form of audio on tapes/compact discs. However, learners get to kee...