Decay of an arbitrary discontinuity on a curvilinear surface

1980 ◽  
Vol 21 (2) ◽  
pp. 261-267 ◽  
Author(s):  
V. M. Teshukov
Keyword(s):  
Curvilinear Surface ◽  
Arbitrary Discontinuity

scholarly journals Special discontinuities in models of continuum mechanics

2018 ◽  
Vol 211 ◽  
pp. 04002
Author(s):  
Anna Chugaynova
Keyword(s):  
Continuum Mechanics ◽  
Uniqueness Of Solutions ◽  
Arbitrary Discontinuity ◽  
Special Discontinuities

Some models of continuum mechanics with possible special discontinuities are analyzed. It is of interest to study such discontinuities since they can generate the non-uniqueness of solutions in a problem of arbitrary discontinuity disintegration.

scholarly journals Sub-SMAS Transposition of the Buccal Fat Pad

2019 ◽  
Author(s):  
Ozan Bitik
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Images ◽  
Surface Measurement ◽  
Fat Pad ◽  
Buccal Fat Pad ◽  
Level Of Evidence ◽  
Curvilinear Surface ◽  
3 Dimensional ◽  
Volume Deficit ◽  
Dimensional Models

AbstractBackgroundRegardless of the technique chosen to treat the aging midface, the isolated lateral approach facelift has a limited impact on the midface volume deficit. In an effort to overcome this limitation, modern facial rejuvenation procedures incorporate an additional modality for replenishing the midface volume. Some of the author’s facelift patients present with bulging buccal fat pads despite volume deficiency in the inframalar region. The author’s technique is designed to utilize the buccal fat pad to replenish the inframalar volume deficit.ObjectivesThe author sought to present the fat pad transposition surgical technique along with objective outcome data.MethodsThis study was a retrospective review of nonconsecutive cases where the sub-superficial-musculo-aponeurotic-system transposition of the buccal fat pad was performed. A total of 22 patients underwent the fat pad transposition technique by the author (O.B.) between July 2013 and December 2017. Patient data were obtained from patient records, 3-dimensional models, magnetic resonance images, and standardized photography. Preoperative differences in midface volume were assessed utilizing curvilinear surface measurements on 3-dimensional models and the Allergan midface volume deficit scale on standardized photography.ResultsThe average midface volume deficit score significantly improved, and the average midfacial curvilinear surface measurement significantly increased after surgery. Magnetic resonance imaging confirmed a stable position of the buccal fat pad after surgery.ConclusionsThe sub-superficial-musculo-aponeurotic-system transposition of the buccal fat pad is an effective technique that can be safely employed for autologous inframalar augmentation in patients with a favorable facial morphology.Level of Evidence: 4

scholarly journals Vectorization of the Riemann solver using the AVX-512 instruction set

2019 ◽  
Vol 10 (3) ◽  
pp. 41-58
Author(s):  
Alexey Anatiljevich Rybakov ◽  
Sergey Sergeevich Shumilin
Keyword(s):  
Numerical Methods ◽  
Riemann Problem ◽  
Computational Grids ◽  
Riemann Solver ◽  
Instruction Set ◽  
Program Code ◽  
Arbitrary Discontinuity ◽  
Significant Acceleration ◽  
Computational Resources

Numerical methods based on solving the Riemann problem of the decay of an arbitrary discontinuity are extremely demanding of computational resources. Applying the data of numerical methods to modern computational grids requires the use of a supercomputer. Among the various tools for improving the performance of supercomputer applications, we can emphasize the vectorization of program code. The AVX-512 instruction set has a number of unique features allowing to apply vectorization to the Riemann solver software context, which results in a significant acceleration of the solver.

scholarly journals Progress and Prospects in Stretchable Electroluminescent Devices

Nanophotonics ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 435-451 ◽  
Author(s):  
Jiangxin Wang ◽  
Pooi See Lee
Keyword(s):  
Future Development ◽  
Stretchable Electronics ◽  
Electroluminescent Devices ◽  
Curvilinear Surface ◽  
Interactive Display ◽  
Input And Output ◽  
Mechanical Deformations ◽  
Internal Forces ◽  
New Form ◽  
Display Systems

AbstractStretchable electroluminescent (EL) devices are a new form of mechanically deformable electronics that are gaining increasing interests and believed to be one of the essential technologies for next generation lighting and display applications. Apart from the simple bending capability in flexible EL devices, the stretchable EL devices are required to withstand larger mechanical deformations and accommodate stretching strain beyond 10%. The excellent mechanical conformability in these devices enables their applications in rigorous mechanical conditions such as flexing, twisting, stretching, and folding.The stretchable EL devices can be conformably wrapped onto arbitrary curvilinear surface and respond seamlessly to the external or internal forces, leading to unprecedented applications that cannot be addressed with conventional technologies. For example, they are in demand for wide applications in biomedical-related devices or sensors and soft interactive display systems, including activating devices for photosensitive drug, imaging apparatus for internal tissues, electronic skins, interactive input and output devices, robotics, and volumetric displays. With increasingly stringent demand on the mechanical requirements, the fabrication of stretchable EL device is encountering many challenges that are difficult to resolve. In this review, recent progresses in the stretchable EL devices are covered with a focus on the approaches that are adopted to tackle materials and process challenges in stretchable EL devices and delineate the strategies in stretchable electronics. We first introduce the emission mechanisms that have been successfully demonstrated on stretchable EL devices. Limitations and advantages of the different mechanisms for stretchable EL devices are also discussed. Representative reports are reviewed based on different structural and material strategies. Unprecedented applications that have been enabled by the stretchable EL devices are reviewed. Finally, we summarize with our perspectives on the approaches for the stretchable EL devices and our proposals on the future development in these devices.

Sign in / Sign up

Export Citation Format

Share Document