Results 101 to 110 of about 3,085,452 (343)
Preliminary assessment of power-generating tethers in space and of propulsion for their orbit maintenance [PDF]
, 1985 The concept of generating power in space by means of a conducting tether deployed from a spacecraft was studied. Using hydrogen and oxygen as the rocket propellant to overcome the drag of such a power-generating tether would yield more benefit than if ...
English, R. E., Finnegan, P. M.
core +1 more source
Cargo diffusion shortens single-kinesin runs at low viscous drag
Scientific Reports, 2018 Molecular motors such as kinesin-1 drive active, long-range transport of cargos along microtubules in cells. Thermal diffusion of the cargo can impose a randomly directed, fluctuating mechanical load on the motor carrying the cargo.
John O. Wilson +3 more
semanticscholar +1 more source
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Investigation of the dragging stress of aluminium under cyclic loading
Mechanical Engineering JournalThe effect of the variation of the dislocation velocity on the dragging stress of aluminium under cycling loading has been investigated. Hydrogen diffusion around a dislocation was simulated by the finite difference method, and the dragging stress was calculated from the hydrogen distribution.
Shota HASUNUMA, Tomoyuki HAYASE
openaire +2 more sources
The spanwise distribution of lift for minimum induced drag of wings having a given lift and a given bending moment [PDF]
The problem of the minimum induced drag of wings having a given lift and a given span is extended to include cases in which the bending moment to be supported by the wing is also given.
Jones, R. T.
core +1 more source
The effects of selected modern technological concepts on the performance and handling characteristics of LTA vehicles [PDF]
, 1975 The results of an airship design sensitivity study are presented. A wide variety of airship design concepts, including the classical and high aero-lift augmented-hybrids are examined with regard to specific technological improvements, and consequent ...
Mazza, C. J.
core +1 more source
Multiphysics‐Driven Assembly of Biomimetic Vesicles
Advanced Materials, EarlyView.Artificial extracellular vesicles, derived from cell membranes, are manufactured using a multiphysics‐integrated microfluidic platform that combines nanoknife membrane rupture, herringbone chaotic mixing, and acoustothermal modulation. This standardizable workflow enables the predictable control of vesicle formation and therapeutic loading, while ...
Timofei Solodko +16 more
wiley +1 more source
Lubrication and Drag Reduction for Polymer-Coated Interfaces
LubricantsLubrication is a well-established strategy for reducing interfacial frictional energy dissipation and preventing surface wear. Various lubricants have been developed, including mineral oil materials, vegetable oil materials, polymer-based materials, and ...
Qiang Yang +6 more
doaj +1 more source
Untethered Magnetic Microswimmers for Targeted Particle Transport and Flow Manipulation
Advanced Materials Technologies, EarlyView.This work introduces magnetically actuated microswimmers to dynamically reconfigure fluid flow within a single microfluidic device. Multiple homogeneous microswimmers are independently controlled by an external magnetic field to perform translational and rotational motions, thereby inducing real‐time flow manipulation.
Dineshkumar Loganathan +3 more
wiley +1 more source
Subaqueous “yardangs”: analogs for aeolian yardang evolution
, 2013 Landforms, morphologically similar to aeolian yardangs but formed by erosion of bedrock by currents on an estuarine rock platform, are described for the first time. The geometries of the “yardangs” are described and related to semi-lemniscate shapes that
Carling, P.A.
core +1 more source