Results 1 to 10 of about 492,094 (266)

Corner-Sharing Tetrahedra for Modeling Micro-structure. [PDF]

open access: yesComput Aided Des, 2019
State-of-the-art representations of volumetric multi-scale shape and structure can be classified into three broad categories: continuous, continuous-from-discrete, and discrete representations. We propose modeling micro-structure with a class of discrete Corner-Sharing Tetrahedra (CoSTs).
Sitharam M   +3 more
europepmc   +5 more sources

Thermodynamics Controlled Sharp Transformation from InP to GaP Nanowires via Introducing Trace Amount of Gallium

open access: yesNanoscale Research Letters, 2021
Growth of high-quality III–V nanowires at a low cost for optoelectronic and electronic applications is a long-term pursuit of research. Still, controlled synthesis of III–V nanowires using chemical vapor deposition method is challenge and lack theory ...
Zhenzhen Tian   +8 more
doaj   +1 more source

Polarization-directed growth of spiral nanostructures by laser direct writing with vector beams

open access: yesNature Communications, 2023
Chiral nanostructures are in demand for various applications, but facile and scalable fabrication is a technical challenge. Here, the authors report polarization-directed chiral growth of complex spiral patterns by laser direct writing with vector beams.
Xiaolin Lu   +3 more
doaj   +1 more source

Nonlinear Dynamics of Two-State Quantum Dot Lasers under Optical Feedback

open access: yesPhotonics, 2021
A modified rate equation model was presented to theoretically investigate the nonlinear dynamics of solitary two-state quantum dot lasers (TSQDLs) under optical feedback. The simulated results showed that, for a TSQDL biased at a relatively high current,
Xiang-Hui Wang   +3 more
doaj   +1 more source

Polarization-controlled anisotropy in hybrid plasmonic nanoparticles

open access: yesNanophotonics, 2022
Anisotropy has played a critical role in many material systems, but its controllable creation and modulation have been a long-lasting challenge for the scientific communities. Polarization-addressed anisotropy appears more attractive among all approaches
Wang Xujie   +7 more
doaj   +1 more source

Four-Dimensional Printing of Alternate-Actuated Composite Structures for Reversible Deformation under Continuous Reciprocation Loading

open access: yesFrontiers in Materials, 2021
Four-dimensional (4D) printed structures are usually designed with reduced stiffness to enlarge the deformation response and weaken the loading capacity in actuated states.
Guanghao Chu   +9 more
doaj   +1 more source

High‐Performance Hot‐Exciton OLEDs via Fully Harvesting Triplet Excited States from Both the Exciplex Co‐Host and the TBRb Emitter

open access: yesAdvanced Science, 2023
The high‐level reverse intersystem crossing (HL‐RISC, T2 → S1) process from triplet to singlet exciton, namely the “hot exciton” channel, has recently been demonstrated in the traditional fluorescent emitter of TBRb. Although it is a potential pathway to
Fuxian Wei   +6 more
doaj   +1 more source

Protein structure determination by MicroED [PDF]

open access: yesCurrent Opinion in Structural Biology, 2014
In this review we discuss the current advances relating to structure determination from protein microcrystals with special emphasis on the newly developed method called MicroED. This method uses a transmission electron cryo-microscope to collect electron diffraction data from extremely small 3-dimensional (3D) crystals.
Brent L, Nannenga, Tamir, Gonen
openaire   +2 more sources

Resonant Lasing Emission in Undoped and Mg-Doped Gallium Nitride Thin Films on Interfacial Periodic Patterned Sapphire Substrates

open access: yesNanomaterials, 2022
In this work, low-threshold resonant lasing emission was investigated in undoped and Mg-doped GaN thin films on interfacial designed sapphire substrates.
Long Xu   +3 more
doaj   +1 more source

Touchable cell biophysics property recognition platforms enable multifunctional blood smart health care

open access: yesMicrosystems & Nanoengineering, 2021
As a crucial biophysical property, red blood cell (RBC) deformability is pathologically altered in numerous disease states, and biochemical and structural changes occur over time in stored samples of otherwise normal RBCs.
Longfei Chen   +18 more
doaj   +1 more source

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