We analyze the eeect of weak residual disorder in microstructures deened on high-mobility heterojunctions, where the classical electron motion is ballistic. We parameterize the disorder by its correlation length and the elastic mean-free-path l, which can be estimated from microscopic models. For the experimentally relevant case in which is not negligible with respect to the size of the microst...

The concept of right (left) quotient (or residual) of an ideal η by anideal ν of an L-subring μ of a ring R is introduced. The right (left) quotients areshown to be ideals of μ . It is proved that the right quotient [η :r ν ] of an idealη by an ideal ν of an L-subring μ is the largest ideal of μ such that[η :r ν ]ν ⊆ η . Most of the results pertaining to the notion of quotients(or residual) of ...

 ABSTRACT Background: The current practice to measure RV is either by BPG or helium dilution methods which may not be available in all clinics due to their cost. Methods: This paper outlines a method for both direct and indirect calculation of RV via PFT with acceptable sensitivity (81 %, 60% ), specificity (71 %, 94%) and validity (76%, 78%) for obstructive and restrictive lung disease respect...

X-ray methods were used to measure the residual stress near a fracture surface of a sintered composite system of A&03/ Sic. A specimen bent at three points with different notch radii was used to measure h-acture toughness. Effects of the notch radii on the stress intensity factor Kp were measured during the initiation of the crack. Experimental results agreed with fracture mechanics theory.

Faculty of Mechanical Engineering, Sardar Raja College of Engineering, Alangulam, Tirunelveli 627 808, India Faculty of Mechanical Engineering, Government College of Engineering, Tirunelveli 627 007, India Faculty of Mechanical Engineering, Alagappa Chettiar College of Engineering and Technology, Karaikudi 630 002, India Structural Analysis and Testing Group, Vikram Sarabhai Space Centre, Triva...

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