Results 131 to 140 of about 849,913 (365)

Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient. [PDF]

open access: yes, 2013
In this study, we investigated the effects of salt stress (2 mM NaCl) on excitation energy transfer from light harvesting complexes to photosystem II (PS II) in two Antarctic algal species: Klebsormidium sp. and Zygnema sp.
Barták Miloš   +2 more
core   +2 more sources

Measurement of the Pressure induced by salt crystallization in confinement [PDF]

open access: yesarXiv, 2016
Salt crystallization is a major cause of weathering of artworks, monuments and rocks. Damage will occur if crystals continue to grow in confinement, i.e. within the pore space of these materials generating mechanical stresses. We report on a novel method that allows to directly measure, at the microscale, the resulting pressure while visualizing the ...
arxiv  

Pickering Emulsion for Enhanced Viability of Plant Growth Promoting Bacteria and Combined Delivery of Agrochemicals and Biologics

open access: yesAdvanced Functional Materials, EarlyView.
Cellulosic emulsions as multi‐cargo agriculture formulations. Pickering emulsions stabilized by cellulose acetate particles provide an effective platform for delivering a range of agricultural cargoes, including plant growth‐promoting bacteria and agrochemicals.
Mariam Sohail   +10 more
wiley   +1 more source

Effect of salinity stress on the life history variables of Branchipus schaefferi Fisher, 1834 (Crustacea: Anostraca) [PDF]

open access: yes, 2005
BACKGROUND: Freshwater anostracans inhabit ephemeral water bodies in which as the water level decreases due to evaporation the salt concentration increases. Thus, for most anostracans salinity becomes the major stress factor.
Beladjal, Lynda   +4 more
core   +2 more sources

Geomechanical Risk Analysis for the Historical Salt Cavern Saurau in Wieliczka Mine [PDF]

open access: yesarXiv, 2019
Based on the finite element method formulated in three dimensions, a selected area of the salt mine has been modeled, embracing totally 2 separated, historically valuable mine rooms. The results of the computer simulations permitted elastic-viscous rock mass stability analyses identifying the areas being more susceptible to damage, presently and in a ...
arxiv  

The Emerging 4D Printing of Shape‐Memory Thermomorphs for Self‐Adaptative Biomedical Implants

open access: yesAdvanced Functional Materials, EarlyView.
4D printing enables the creation of smart implants that adapt to changing conditions in the human body over time. At the core of this technology are shape‐memory thermomorphs (SMTMs). This review offers an in‐depth analysis of 4D printing with SMTMs, emphasizing the latest advancements in smart materials, stimuli, programming principles, and their ...
Aixiang Ding, Fang Tang, Eben Alsberg
wiley   +1 more source

The initiation of hot-salt stress corrosion cracking of titanium alloys [PDF]

open access: yes
Initiation of hot salt stress corrosion cracking of titanium ...
Rideout, S. P.
core   +1 more source

Exogenous melatonin induces salt and drought stress tolerance in rice by promoting plant growth and defense system

open access: yesScientific Reports
Due to global climate change, crops are certainly confronted with a lot of abiotic and biotic stress factors during their growth that cause a serious threat to their development and overall productivity. Among different abiotic stresses, salt and drought
Zakirullah Khan   +7 more
doaj   +1 more source

Two-phase pore-network model for evaporation-driven salt precipitation -- representation and analysis of pore-scale processes [PDF]

open access: yesarXiv
Evaporation-driven salt precipitation occurs in different contexts and leads to challenges in case of e.g. soil salinization or stress-introducing precipitation in building material. During evaporation, brine in porous media gets concentrated due to the loss of water until the solubility limit is reached and salt precipitates.
arxiv  

Formation and Rupture of Ca$^{2+}$ Induced Pectin Biopolymer Gels [PDF]

open access: yesSoft Matter, 2014, 10 (37), 7225-7233, 2014
When calcium salts are added to an aqueous solution of polysaccharide pectin, ionic cross-links form between pectin chains, giving rise to a gel network in dilute solution. In this work, dynamic light scattering (DLS) is employed to study the microscopic dynamics of the fractal aggregates (flocs) that constitute the gels, while rheological measurements
arxiv  

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