SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Lee Andrew) srt2:(2015-2019);hsvcat:2"

Sökning: WFRF:(Lee Andrew) > (2015-2019) > Teknik

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Kaucka, Marketa, et al. (författare)
  • Oriented clonal cell dynamics enables accurate growth and shaping of vertebrate cartilage
  • 2017
  • Ingår i: eLIFE. - : Elife Sciences Publications LTD. - 2050-084X. ; 6
  • Tidskriftsartikel (refereegranskat)abstract
    • Cartilaginous structures are at the core of embryo growth and shaping before the bone forms. Here we report a novel principle of vertebrate cartilage growth that is based on introducing transversally-oriented clones into pre-existing cartilage. This mechanism of growth uncouples the lateral expansion of curved cartilaginous sheets from the control of cartilage thickness, a process which might be the evolutionary mechanism underlying adaptations of facial shape. In rod-shaped cartilage structures (Meckel, ribs and skeletal elements in developing limbs), the transverse integration of clonal columns determines the well-defined diameter and resulting rod-like morphology. We were able to alter cartilage shape by experimentally manipulating clonal geometries. Using in silico modeling, we discovered that anisotropic proliferation might explain cartilage bending and groove formation at the macro-scale.
  •  
2.
  • Lee, Kuan, et al. (författare)
  • Aerodynamic Shape Optimization via Global Extremum Seeking
  • 2015
  • Ingår i: IEEE Transactions on Control Systems Technology. - 1558-0865. ; 23:6, s. 2336-2343
  • Tidskriftsartikel (refereegranskat)abstract
    • Optimization of aerodynamic shapes using computational fluid dynamics (CFD) approaches has been successfully demonstrated over a number of years; however, the typical optimization approaches employed utilize gradient algorithms that guarantee only the local optimality of the solution. While numerous global optimization techniques exist, they are usually too time consuming in practice. In this brief, a modified global optimization algorithm (DIRECT-L) is introduced and is utilized in the context of sampled-data global extremum seeking. The theoretical framework and conditions under which the convergence to the steady state of the CFD solver can be interpreted as plant dynamics are stated. This method alleviates the computational burden by reducing sampling and requiring only partial convergence of the CFD solver for each iteration of the optimization design process. The approach is demonstrated on a simple example involving drag minimization on a 2-D aerofoil.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy