Results 61 to 70 of about 88,506 (276)

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Automatic Building Boundary Extraction from Point Cloud Data [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This paper presents a methodology and solution for extracting building footprints from three-dimensional point cloud data. The extraction and normalisation of building boundaries represent a fundamental approach for three-dimensional modelling of ...
J. Nalini, S. Saravanan, B. Narender, S. Muralikrishnan   +3 more
doaj   +1 more source

A handlebody calculus for topology change

, 1997
We consider certain interesting processes in quantum gravity which involve a change of spatial topology. We use Morse theory and the machinery of handlebodies to characterise topology changes as suggested by Sorkin. Our results support the view that that
, Anderson A, Bröcker T H, Dowker H F, Dowker H F, Dubrovin B A, Geroch R P, Gibbons G W, Greenberg M J, H F Dowker, Hawking S W, Kirby R C, Kirby R C, Louko J, Manogue C A, Maunder C R F, Milnor J, Milnor J, Milnor J W, O'Connor D, Palais R S, R S Garcia, Sorkin R D, Sorkin R D, Sorkin R D, Sorkin R D, Sorkin R D, Stong R E, Tipler F J, Wallace A H, Yodzis P   +30 more
core   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Optimizing the loss function for bounding box regression through scale smoothing

Ain Shams Engineering Journal
Deep learning technology is widely used in target detection in machine vision. However, existing regression loss functions used for training networks suffer from slow convergence and imprecise localization, hindering the realization of fast and accurate ...
Ying-Jun Lei, Bo-Yu Wang, Yu-Tong Yang
doaj   +1 more source

Optimized Effective Potentials in Finite Basis Sets

, 2007
The finite basis optimized effective potential (OEP) method within density functional theory is examined as an ill-posed problem. It is shown that the generation of nonphysical potentials is a controllable manifestation of the use of unbalanced, and thus
Felipe A. Bulat, P. C. Hansen, R. G. Parr, Tim Heaton-Burgess, Weitao Yang   +4 more
core   +1 more source

Combined Geometrical Optimisation of a Square Microchannel with Smoothed Corners

Energies
Several engineering systems currently use microchannel heat sinks. In order to increase the performance of these devices, optimisation according to the first and second law of thermodynamics is employed. One way to achieve the goal is to modify the geometry of the cross-section, as is done in this paper for square ducts, having the walls at a uniform ...
Lorenzini M., Suzzi N.
openaire   +2 more sources

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

Advanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi, David J. Sharkey, Nicole O. McPherson, Markos Negash Alemie, Krasimir Vasilev, Sarah A. Robertson   +5 more
wiley   +1 more source

Real-Time Diffraction-Aware Sound Effects for VR and Game Environments Using Curl Vector Approximation

IEEE Access
We present a real-time, diffraction-aware sound–effect framework for VR/game environments that balances physical plausibility and computational efficiency. The core idea is to approximate obstacle-induced wave behavior by (i) interior curl vectors
Jong-Hyun Kim
doaj   +1 more source

Application of Artificial Neural Networks to Ship Detection from X-Band Kompsat-5 Imagery

Applied Sciences, 2017
For ship detection, X-band synthetic aperture radar (SAR) imagery provides very useful data, in that ship targets look much brighter than surrounding sea clutter due to the corner-reflection effect. However, there are many phenomena which bring out false
Jeong-In Hwang, Sung-Ho Chae, Daeseong Kim, Hyung-Sup Jung   +3 more
doaj   +1 more source