Results 151 to 160 of about 409,841 (256)

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

open access: yesAdvanced Science, EarlyView.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu   +5 more
wiley   +1 more source

Emergent Spinning and Orbital Motion in Clustered Wind‐Assisted Flyers

open access: yesAdvanced Science, EarlyView.
Inspired by natural snowflake geometries, paper‐cut flyers exhibit geometry‐defined spinning and orbital motions during cluster formation in a wind tunnel. Collective flights of multiple paperflakes reveal dynamic clustering, fragmentation, and continuously evolving spin behaviors.
Bingnan Zhou   +7 more
wiley   +1 more source

Chemical compositions and leaching behaviour of some South African fly ashe

open access: yes, 2008
>Magister Scientiae - MScFly ash is the most abundant of the waste materials generated from coal combustion in coal-fired power stations. South Africa uses more than 100 million tonnes of low grade bituminous coal annually to produce cheap electricity ...
Fatoba, Ojo Olanrewaju
core  

Thermal and Mechanical Properties of Cementitious Waste-Coated Polyamide 6 Composites. [PDF]

open access: yesPolymers (Basel)
Donmez Cavdar A   +4 more
europepmc   +1 more source

Cation Diffusion‐Mediated Displaced Reaction‐Transformation in Green Steelmaking

open access: yesAdvanced Science, EarlyView.
The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guangyi Guo   +7 more
wiley   +1 more source

The development of a lure and kill system for control of the Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae)

open access: yes, 2012
The Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera: Tephritidae) is a polyphagous pest of global economic importance. As a result, many systems have been proposed to reduce their impact and population spread, each of which has its ...
Rogers, Craig
core  

Odor tracking in flying <i>Drosophila</i> requires visual reafference and compass neurons. [PDF]

open access: yesProc Natl Acad Sci U S A
Paul Currea J   +6 more
europepmc   +1 more source

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

open access: yesAdvanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li   +7 more
wiley   +1 more source

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