American Literature Education Status and its significance are： Currently, the community is generally filled with quick success; anxious atmosphere has penetrated the influence of contemporary students. No matter what...American Literature Education Status and its significance are： Currently, the community is generally filled with quick success; anxious atmosphere has penetrated the influence of contemporary students. No matter what time, we are not able to separate literature and language these two concepts to analyze literary language and it is the most important bearing carrier, and the language is the basic tool to shape the image of literature to reflect the social life and express thoughts and feelings.展开更多
60 years ago, in 1958, Ernest Rabinowicz published a 5 page paper titled "The effect of size on the looseness of wear fragments" where he suggested a criterion determining the minimum size of wear particles....60 years ago, in 1958, Ernest Rabinowicz published a 5 page paper titled "The effect of size on the looseness of wear fragments" where he suggested a criterion determining the minimum size of wear particles. The criterion of Rabinowicz is based on the consideration of the interplay of elastic energy stored in "asperities" and the work of separation needed for detaching a wear particle. He was probably the first researcher who explicitly emphasized the role of adhesion in friction and wear. In a recent paper in Nature Communications, Aghababaei, Warner and Molinari confirmed the criterion of Rabinowicz by means of quasi-molecular dynamics and illustrated the exact mechanism of the transition from plastic smoothing to formation of wear debris. This latter paper promoted the criterion of Rabinowicz to a new paradigm for current studies of adhesive wear. The size arguments of Rabinowicz can be applied in the same form also to many other problems, such as brittle-ductile transition during indentation, cutting of materials or ultimate strength of nano-composites.展开更多
文摘American Literature Education Status and its significance are： Currently, the community is generally filled with quick success; anxious atmosphere has penetrated the influence of contemporary students. No matter what time, we are not able to separate literature and language these two concepts to analyze literary language and it is the most important bearing carrier, and the language is the basic tool to shape the image of literature to reflect the social life and express thoughts and feelings.
文摘60 years ago, in 1958, Ernest Rabinowicz published a 5 page paper titled "The effect of size on the looseness of wear fragments" where he suggested a criterion determining the minimum size of wear particles. The criterion of Rabinowicz is based on the consideration of the interplay of elastic energy stored in "asperities" and the work of separation needed for detaching a wear particle. He was probably the first researcher who explicitly emphasized the role of adhesion in friction and wear. In a recent paper in Nature Communications, Aghababaei, Warner and Molinari confirmed the criterion of Rabinowicz by means of quasi-molecular dynamics and illustrated the exact mechanism of the transition from plastic smoothing to formation of wear debris. This latter paper promoted the criterion of Rabinowicz to a new paradigm for current studies of adhesive wear. The size arguments of Rabinowicz can be applied in the same form also to many other problems, such as brittle-ductile transition during indentation, cutting of materials or ultimate strength of nano-composites.
