Results 1 to 10 of about 101,481 (337)
Thorax, 1998 We believe that the asthma phenotypes we have defined as types 1 and 2 brittle asthma appear to be defined subgroups of asthma. For example, we have characterised patients with type 1 brittle asthma, as defined in this review, on the basis of peak flow variability and treatment and these patients remain a separate group when assessed by other means ...
J G, Ayres, J F, Miles, P J, Barnes
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Monaldi Archives for Chest Disease, 2016 Brittle asthma is a clinical phenotype of the disease at the severe end of the spectrum. Type 1 brittle asthma is characterised by a maintained wide PEF variability (> 40% diurnal variation for > 50% of the time over a period of at least 150 days) despite considerable medical therapy including a dose of inhaled steroids of at least 1500 μg of ...
TOUNGOUSSOVA O +6 more
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Run-out of landslides in brittle soils [PDF]
, 2016 One of the factors causing the acceleration of landslides is the loss of strength of the soil involved in the potential unstable mechanism. The travelled distance and the landslide velocity, a key factor in risk analysis, will be determined by the loss ...
Alonso Pérez de Agreda, Eduardo +2 more
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Determination of the bilinear stress-crack opening curve for normal- and high-strength concrete [PDF]
, 2008 An improved version of the method proposed to ACI committee 446 and to RILEM TC 187-SOC to determine the fracture parameters of concrete is applied in this study to several mixtures of normal and high-strength concretes.
Fathy Abdelaziz, Adel Mohamed +3 more
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Rupture by damage accumulation in rocks [PDF]
, 2006 The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological terms, and to the
A Buchel +64 more
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Numerical simulation of grain-size effects on creep crack growth by means of grain elements [PDF]
, 1998 The effect of grain size on creep crack growth is investigated by means of a numerical technique in which the actual crack growth process is simulated in a discrete manner by grain elements and grain boundary elements.
Giessen, E. van der,, Onck, P.R.,
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Slope stability in slightly fissured claystones and marls [PDF]
, 2015 The final publication is available at Springer via http://dx.doi.org/10.1007/s10346-014-0526-5The paper deals with the behavior of some characteristic soft rocks found in the Iberian Peninsula.
Alonso Pérez de Agreda, Eduardo +1 more
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Brittle or Quasi-Brittle Fracture of Engineering Materials 2016 [PDF]
Advances in Materials Science and Engineering, 2016 1Department of Engineering Design and Materials, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway 2Faculty of Mechanical Engineering, Politehnica University of Timisoara, Blvd. M. Viteazu, Nr. 1, 300222 Timisoara, Romania 3Fatigue and Fracture Research Laboratory, Center of Excellence in Experimental Solid Mechanics and ...
Filippo Berto +4 more
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Structure and dielectric properties of electroactive tetraaniline grafted non-polar elastomers [PDF]
, 2020 Intrinsic modification of polybutadiene and block copolymer styrene–butadiene–styrene with the electrically conducting emeraldine salt of tetraaniline (TANI) via a three-step grafting method, is reported in this work.
Ellingford, Christopher +3 more
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The brittleness index in hydraulic fracturing [PDF]
, 2015 We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
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