Results 111 to 120 of about 353,662 (303)
Emergence of collective propulsion through cell-cell adhesion
, 2017 The mechanisms driving the collective movement of cells remain poorly understood. To contribute toward resolving this mystery, a model was formulated to theoretically explore the possible functions of polarized cell-cell adhesion in collective cell ...
Matsushita, Katsuyoshi
core +1 more source
Optical‐Propulsion Metastructures
Advanced MaterialsAbstractPulsed laser micropropulsion (PLMP) offers a promising avenue for miniature space craft, yet conventional propellants face challenges in balancing efficiency and stability. An optical‐propulsion metastructure strategy using metal‐organic frameworks (MOFs) is presented to generate graphene‐metal metastructures (GMM), specifically GMM‐(HKUST‐1 ...
Senlin Rao +5 more
openaire +2 more sources
Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites
Advanced Functional Materials, EarlyView.Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles +16 more
wiley +1 more source
ASYMMETRICAL CAPACITOR: EXPERIMENTS AND MODELING CONDENSADOR ASIMÉTRICO: EXPERIMENTOS Y MODELADO
Revista Ingenierías Universidad de Medellín, 2012 This research article describes experiments using several Asymmetrical Capacitors prototypes (AsC) with the objective to reproduce this unusual physical phenomenon, as well as to show its exceptional characteristics.
Josué Rincón +2 more
doaj
Methods and ProtocolsMeasuring the propulsion performance of sport wheelchairs in ecological conditions remains complex due to variations inherent in real-world practice.
Safiya Noury +8 more
doaj +1 more source
Bio‐Inspired Molecular Events in Poly(Ionic Liquids)
Advanced Functional Materials, EarlyView.Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley +1 more source
Development of an Ultralight with a Ducted Fan
Acta Polytechnica, 2012 This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft of this kind are mentioned, e.g.
Jiří Brabec, Martin Helmich
doaj
Frontiers in PhysiologyThe effect of gait feedback training for older people remains unclear, and such training methods have not been adapted in clinical settings. This study aimed to examine whether inertial measurement unit (IMU)-based real-time feedback gait for older ...
Takasuke Miyazaki +12 more
doaj +1 more source
Maintaining technical excellence requires a national plan [PDF]
To meet the challenge of technical excellence, AIA established a rocket propulsion committee to develop the National Rocket Propulsion Strategic Plan. Developing such a plan required a broad spectrum of experience and disciplines. The Strategic Plan team
Davidson, T. F.
core +1 more source
Advanced Functional Materials, EarlyView.Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin +9 more
wiley +1 more source