Results 111 to 120 of about 1,775,384 (336)

Comparative performance of twenty-three types of flat plate solar energy collectors [PDF]

open access: yes, 1975
Report compares efficiencies of 23 solar collectors for four different purposes: operating a Rankine-cycle engine, heating or absorption air conditioning, heating hot water, and heating a swimming ...
Simon, F. F.
core   +1 more source

Soliton absorption spectroscopy

open access: yes, 2010
We analyze optical soliton propagation in the presence of weak absorption lines with much narrower linewidths as compared to the soliton spectrum width using the novel perturbation analysis technique based on an integral representation in the spectral ...
A. Biswas   +10 more
core   +2 more sources

Epithelial water absorption: Osmosis or cotransport? [PDF]

open access: yesProceedings of the National Academy of Sciences, 2001
A paradigm lost? Not according to the studies of Duquette, Bissonnette, and Lapointe (1), which present a direct test of the recently advanced cotransport hypothesis of water absorption. The results of these studies argue, strongly, that the widely accepted notion that osmotic coupling is the single mechanism responsible for water transport across ...
openaire   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Performance Analysis of a GAX Absorption Cycle with Ionic Liquid-water Working Pairs

open access: yesZhileng xuebao, 2019
Heat-driven absorption refrigeration technology is an important approach for solar-energy utilization and industrial-waste heat recovery. Among them, the generation and absorption heat exchange (GAX) absorption cycle exhibits a high efficiency whose ...
Zhao Xinrui, Xu Zhenyuan, Wang Ruzhu
doaj  

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

The 27-28 October 1986 FIRE IFO cirrus case study: Comparison of satellite and aircraft derived particle size [PDF]

open access: yes
Theoretical calculations predict that cloud reflectance in near infrared windows such as those at 1.6 and 2.2 microns should give lower reflectances than at visible wavelengths. The reason for this difference is that ice and liquid water show significant
Arduini, Robert F.   +8 more
core   +1 more source

Identification of Magnetite in B-type Asteroids

open access: yes, 2010
Spectrally blue (B-type) asteroids are rare, with the second discovered asteroid Pallas being the largest and most famous example. We conducted a focused, infrared spectroscopic survey of B-type asteroids to search for water-related features in these ...
Adams   +32 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

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