Results 31 to 40 of about 37,321 (297)
The role of attractive forces in viscous liquids [PDF]
, 2011 We present evidence from computer simulation that the slowdown of relaxation of a standard Lennard-Jones glass-forming liquid and that of its reduction to a model with truncated pair potentials without attractive tails is quantitatively and qualitatively
Gilles Tarjus +3 more
core +3 more sources
Energy Efficiency Assessment of Electric Bicycles
EnergiesElectric-assist bicycles have recently become very popular. However, riding them generally requires significantly more energy, generated simultaneously by the motor and the rider, compared to much lighter traditional bicycles.
Tomasz Matyja +2 more
doaj +1 more source
Exploring Tractive Performance of Planetary Rover's Rigid Wheels on Mixed Terrain
Xibei Gongye Daxue Xuebao, 2020 Based on insufficient studies of the tractive performance of a planetary rover's rigid wheels in soft soil and hard mixed soil terrains, a method for studying the tractive performance is presented.
doaj +1 more source
Casimir Effect, Achucarro-Ortiz Black Hole and the Cosmological Constant [PDF]
, 2003 We treat the two-dimensional Achucarro-Ortiz black hole (also known as (1+1) dilatonic black hole) as a Casimir-type system. The stress tensor of a massless scalar field satisfying Dirichlet boundary conditions on two one-dimensional "walls" ("Dirichlet ...
A. Kumar +52 more
core +2 more sources
Retardation turns the van der Waals attraction into Casimir repulsion already at 3 nm [PDF]
, 2012 Casimir forces between surfaces immersed in bromobenzene have recently been measured by Munday et al. Attractive Casimir forces were found between gold surfaces. The forces were repulsive between gold and silica surfaces.
B. V. Deryaguin +13 more
core +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Gastrointestinal graft‐versus‐host disease (GI GVHD) following hematopoietic stem cell transplant is typically managed with medical therapy, but surgery and angioembolization may be warranted in selected cases with life‐threatening complications.
Gaia Brunetti +12 more
wiley +1 more source
Advances in Mechanical Engineering, 2019 The objective of this study is to clarify the differences of tractive performances generated by the sandy loam-grouser system and the clay soil-grouser system.
Jun Ge +5 more
doaj +1 more source
Investigative study on temperature conditions of continuous run modes of hoisting machine electric drive [PDF]
Научно-технический вестник Брянского государственного университета, 2019 The paper presents the findings of the investigative study on the features of electric drives in the continuous run modes (which correspond to the run modes of belt conveyor drives) using frequency converters and operating with the natural mechanical ...
Goncharov K.A.
doaj +1 more source
Comparative airship economics [PDF]
, 1975 As future LTA vehicles will be doomed right from the start if they do not fill a real need, some differences in transport philosophy between design engineers on the one hand and freight forwarders on the other are discussed.
Harthoorn, R.
core +1 more source
Transport energy consumption in mountainous roads. A comparative case study for internal combustion engines and electric vehicles in Andorra [PDF]
, 2015 This paper analyses transport energy consumption of conventional and electric vehicles in mountainous roads. A standard round trip in Andorra has been modelled in order to characterise vehicle dynamics in hilly regions.
Jover Comas, Eric +2 more
core +2 more sources