نتایج جستجو برای: defect principle
تعداد نتایج: 246899 فیلتر نتایج به سال:
Background and purpose: Adipose - drived stem cells are multipotent cells that capable to diffrentiate in to osteogenic cells. On the other hand, the scaffold of chitosan and gelatin are biodegradable and compatible used for tissue repair. This study evaluated the repair of femoral bone defect using adipose-derived stem cells on gelatin – chitosan membrane in adult Albino Wistar rats by radiog...
kant’s ethical theory is one the most important theories in philosophy of ethics, which has always attracted the attention of the commentators and critics. although it has many positive points, there are some objections to this theory just as to any other human theory. in this article, it is attempted to point out the critiques that seem to have been leveled against kant’s ethics. some of these...
Thin walled large structures are widely used for pipes, bridges, wings and body of aircrafts, and automobile bodies. To maintain such large structures, in addition to visual inspection, non-destructive testing with X-ray and ultrasonic is periodically implemented for essential parts. In ultrasonic non-destructive testing, ultrasonic pulse echo technique is generally used, in which plate thickne...
This report is on the handling of disc defects in optical disc drives. The goal of the research is to investigate how the influence of disc defects can be characterized and utilized on the servo level, in order to achieve playability improvement. After a general introduction on optical disc drives, three aspects of the problem are treated in detail. From extensive measurements and theirasubsequ...
this paper deals with the behavior at infinity of solutions to a class of wave equations with nonlinear dampingterms defined in a semi-infinite cylinder. the spatial behavior of solutions is studied and an alternative ofphragmén-lindelöf type theorems is obtained in the results. the main point in the contribution is the use of energy method.
Accurate and non-destructive technology for detection of subsurface defect has become a key requirement with the emergence various ultra-precision machining technologies application components. The combination acoustic technique sub-surface atomic force microscopy (AFM) measurement high resolution is potential method studying structure workpiece. For this purpose, contact-resonance AFM (CR-AFM)...
A computationally efficient a posteriori error estimator is introduced and analyzed for collocation solutions to linear index-1 DAEs with properly stated leading term. The procedure is based on a modified defect correction principle, extending an established technique from the ODE context to the DAE case. We prove that the resulting error estimate is asymptotically correct, and illustrate the m...
| We consider mixed nite element discretizations of linear second order elliptic boundary value problems with respect to an adaptively generated hierarchy of possibly highly nonuniform simplicial triangulations. In particular, we present a hierarchical basis error estimator for Raviart-Thomas mixed nite element discretizations of order l on simplicial triangulations. The introduction of the err...
Cleft lip and palate are the most common presenting congenital conditions of the face and cranial bones. This article describes current understanding of the aetiology and presentation of the deformity and management of the child from prenatal diagnosis until maturity. Principle concerns include correction of the physical defect with the best possible functional and cosmetic outcome, optimal spe...
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