Results 101 to 110 of about 32,663 (290)
Mass Spectrometry Reviews, EarlyView.ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt +4 more
wiley +1 more source
Improvement of soil stability along rail corridors through native vegetation
, 2023 Field studies have revealed the effective utilization of native trees as an economical and environmental friendly method of soil stabilization along railway lines in Australia.
Rujikiatkamjorn, C +2 more
core +1 more source
Magnetic Resonance in Chemistry, EarlyView.Liquids at silica interfaces experience demixing as a consequence of their respective polarity. The distribution of liquids and their primary relaxation contributions are studied by surface modification with OD and radical moieties, respectively. ABSTRACT NMR relaxation of liquids in the presence of solid interfaces, such as silica gel or porous glass,
Carlos Mattea +3 more
wiley +1 more source
Hysteretic seepage analysis in unsaturated soil covers
, 2012 This paper aims to study numerically the effect of hysteresis on the hydraulic behaviour of unsaturated soil covers. The Richards equation is coupled with the hysteretic soil water retention curve (SWRC), to describe the flow in unsaturated soils.
Sheng, Daichao +2 more
core
Modeling field load tests in lateritic unsaturated soil
, 2014 Many models for unsaturated soil have been developed in the last years, accompanying the development of experimental techniques to deal with such soils.
R Rodrigues +6 more
core +1 more source
Numerical Modeling of Geological Fault Reactivation Using Sequential Coupling Strategies
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT The interaction between fluid flow and mechanical deformation in fault zones can lead to processes of fault reactivation, triggering potential geomechanical problems such as seismicity, well collapse, fluid migration to shallower layers, and aggravated surface subsidence.
Julio Rueda +3 more
wiley +1 more source
Impact of infield irrigation management by Botswana cabbage farmers on soil salinity [PDF]
, 2005 Some vegetable farmers in the semi- arid Botswana are struggling or closing down their enterprises citing the cost of irrigation and salty water as the problem.
Molatakgosi, Goitsemodimo
core
The influence of nitrate leaching through unsaturated soil on groundwater pollution in an agricultural area of the Basque country: a case study [PDF]
, 2003 The average nitrate concentration in the groundwater of the Vitoria-Gasteiz (Basque Country) quaternary aquifer rose from 50 mg NO3−/l during 1986 to over 200 mg/l in 1995, which represents an increase of some 20 mg NO3−/l per year.
Morell, Ignacio +4 more
core +1 more source
Overshooting of Hypoplastic Models With Intergranular Strain: Manifestation, Implications and Remedy
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Intergranular strain extensions of hypoplasticity (IGS, ISA, GIS) are widely used to model small‐strain and cyclic soil behaviour. However, recent studies and our own simulations reveal that these models can exhibit stress overshooting not only under repeated small loading cycles but also during monotonic loading.
Jan Machaček +2 more
wiley +1 more source
Unsaturated soils: constitutive modelling and explicit stress integration [PDF]
, 2008 Not ...
Solowski, Wojciech Tomasz
core