Results 131 to 140 of about 2,117,336 (305)

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

open access: yesAdvanced Engineering Materials, EarlyView.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja   +9 more
wiley   +1 more source

Site Description for the University of Nebraska's Sandhills Agricultural Laboratory [PDF]

open access: yes, 1985
The Sandhills Agricultural Laboratory is operated by the University of Nebraska. The laboratory is located in the south-central part of the Nebraska Sandhills near Tryon, Nebraska (41 deg. 37' N; 100 deg. 50' W).
Blad, B. L., Gardner, B. R.
core   +1 more source

A Genetic History of the Near East from an aDNA Time Course Sampling Eight Points in the Past 4,000 Years. [PDF]

open access: yesAm J Hum Genet, 2020
Haber M   +11 more
europepmc   +1 more source

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

open access: yesAdvanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza   +3 more
wiley   +1 more source

Rapidly Connecting You to the World: Improving NASAs Worldview to Enhance Discovery and Access to Near Real-Time Imagery [PDF]

open access: yes
The world around us is constantly in motion. Storms swirl, fires rage, volcanoes erupt and icebergs calve. NASAs fleet of Earth Observing System (EOS) satellites are there to capture this.
Baynes, Kathleen   +8 more
core   +1 more source

Artifacts in the Raymond Powell Collection from East Texas [PDF]

open access: yes, 2012
In March 2010, Raymond Powell of Mansfield, Louisiana, allowed the examination and photographic documentation of several artifacts in his possession. The specimens were given to him approximately 60 years ago by a friend who reportedly excavated them ...
Girard, Jeffery S., Perttula, Timothy K.
core   +1 more source

The use of double border-screening strategy in the surveillance and prevention of COVID-19

open access: yesJournal of Infection and Public Health, 2021
Buket Baddal   +3 more
doaj   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

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