Results 91 to 100 of about 3,688,770 (263)

Uniqueness of diffusion operators and capacity estimates [PDF]

open access: yesJournal of Evolution Equations, 2013
Let $ $ be a connected open subset of $\Ri^d$. We analyze $L_1$-uniqueness of real second-order partial differential operators $H=-\sum^d_{k,l=1}\partial_k\,c_{kl}\,\partial_l$ and $K=H+\sum^d_{k=1}c_k\,\partial_k+c_0$ on $ $ where $c_{kl}=c_{lk}\in W^{1,\infty}_{\rm loc}( ), c_k\in L_{\infty,{\rm loc}}( )$, $c_0\in L_{2,{\rm loc}}( )$ and $C(x)=(
openaire   +4 more sources

Front Propagation and Clustering in the Stochastic Nonlocal Fisher Equation

open access: yes, 2017
The nonlocal Fisher equation is a diffusion-reaction equation with a nonlocal quadratic competition, which describes the reaction between distant individuals.
Ganan, Yehuda A., Kessler, David A.
core   +1 more source

Acute effects of combined exercise and oscillatory positive expiratory pressure therapy on sputum properties and lung diffusing capacity in cystic fibrosis: a randomized, controlled, crossover trial

open access: yesBMC Pulmonary Medicine, 2018
Background Regular airway clearance by chest physiotherapy and/or exercise is critical to lung health in cystic fibrosis (CF). Combination of cycling exercise and chest physiotherapy using the Flutter® device on sputum properties has not yet been ...
Thomas Radtke   +7 more
doaj   +1 more source

EXPERIMENTAL STUDY OF REACTIVITY AND MORPHOLOGICAL CHANGE OF FE-BASED CHEMICAL LOOPING PARTICLE IN CYCLIC REDUCTION-OXIDATION REACTIONS [PDF]

open access: yes, 2013
Coal, an abundant and stable energy source, is playing an important role in current and future global energy supplies. Therefore, there is intensive research currently focusing on coal-conversion in a high-efficiency and environmentally-friendly way. The
Chi, Hao
core  

Quantitative morphology of compensatory lung growth

open access: yesEuropean Respiratory Review, 2006
Compensatory lung growth is defined by the absolute increases in the quantity of functioning lung tissue in response to injury and/or disease, leading to a positive impact on functional outcome. The pneumonectomy model is used as an example to illustrate
C. C. W. Hsia
doaj  

Skin thickness score as a surrogate marker of organ involvements in systemic sclerosis: a retrospective observational study

open access: yesArthritis Research & Therapy, 2019
Background Previous studies have shown the relationship between higher skin thickness score and the existence of organ involvements in systemic sclerosis (SSc).
Kazuki M. Matsuda   +11 more
doaj   +1 more source

Diffusing capacity, specific diffusing capacity and interpretation of diffusion defects.

open access: yesThe Western journal of medicine, 1976
Six pathophysiologic mechanisms of a reduced single breath CO diffusing capacity are discussed and the usefulness of relating carbon monoxide (CO) uptake to the functioning alveolar volume (DL/VA, specific diffusing capacity) is illustrated for several pulmonary diseases.
L N, Ayers   +3 more
openaire   +1 more source

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