Results 241 to 250 of about 864,788 (299)

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

Advanced Functional Materials, EarlyView.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato, Haishuo Guan, Bianca M. Carrara, Mira Jacobs, Matteo Monticelli, Lukas Moser, Thomas Moragues, Andrew J. deMello, Tomaso Zambelli, Martin Ehrbar   +9 more
wiley   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

Advanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed, Arnab Bhattacharya, Prashant Singh, Ajay Kumar, Tukai Singha, Anis Biswas, Yaroslav Mudryk, I. Das   +7 more
wiley   +1 more source

Self‐Immolative Activatable Nanoassembly toward Immuno‐Photodynamic Therapy in TME

Advanced Functional Materials, EarlyView.
A quinone methide‐gated, self‐immolative, H2O2‐responsive nano‐photosensitizer (Pyz/PS) is developed for targeted immuno‐photodynamic therapy. Pyz/PS selectively activates within tumor microenvironments, restores photosensitizer activity, generates ROS, and depletes intracellular GSH, enhancing oxidative stress.
Jing Li, E Pang, Snehasish Debnath, Jia Hong, Aojun Qiu, Dongeun Kim, Goeun Kim, Minhuan Lan, Min‐Goo Lee, Qian‐Yong Cao, Jong Seung Kim   +10 more
wiley   +1 more source

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High Efficiency Thermoelectric Power Conversion

MRS Proceedings, 2005
ABSTRACTRecent efforts at Teledyne Energy Systems, Inc. have lead to significant improvements in thermoelectric (TE) materials and power conversion devices. A number of improved formulations have been identified for standard n-type PbTe and p-type TAGS alloys. The preliminary test results appear to show nearly a 50% increase in the dimensionless figure-
Donald F. Byrnes, Ben Heshmatpour
openaire   +1 more source

Session 12 overview: Efficient Power Conversion

2016 IEEE International Solid-State Circuits Conference (ISSCC), 2016
The session on Efficient Power Conversion is about improvement of efficiency and versatility in switched-capacitor, inductor-based DC-DC converters, and LED drivers. The first two papers address switched-capacitor power conversion, dealing with loss mechanisms and limited ratios.
Vadim Ivanov, Jaejin Park
openaire   +1 more source

53.5 % Photodiode RF Power Conversion Efficiency

Optical Fiber Communication Conference, 2010
A record 53.5% RF power conversion efficiency is reported for a photodiode delivering 24.4 dBm output power. This is achieved by optimized photodiode design, optical intensity-envelope shaping with a Mach-Zehnder modulator and photodiode signal compression.
Ulrik Gliese, Kristina Colladay, Alexander S. Hastings, David A. Tulchinsky, Vincent J. Urick, Keith J. Williams   +5 more
openaire   +1 more source

Efficiency Regulations: Driving power conversion efficiency designs

IEEE Power Electronics Magazine, 2017
In recent decades, government agencies developed programs to improve the efficiency of our electronic products and appliances. A 1999 study estimated that up to 10% of electricity consumed by residential products was wasted when products had been turned off by consumers [1].
openaire   +1 more source

High-Efficiency Power Conversion Using Silicon Carbide Power Electronics

Materials Science Forum, 2014
The message of this paper is that the silicon carbide power transistors of today are good enough to design converters with efficiencies and switching speeds beyond comparison with corresponding technology in silicon. This is the time to act. Only in the highest power range the devices are missing.
Hans Peter Nee, J. Rabkowski, D. Peftitsis, G. Tolstoy, J. Colmenares, Diane Perle Sadik, M. Bakowski, Jang Kwon Lim, A. Antonopoulos, L. Ängquist, M. Zdanowski   +10 more
openaire   +1 more source

CuGaSe 2 solar cells with 9.7% power conversion efficiency

Applied Physics A: Materials Science & Processing, 1996
Heterojunctions, such as ZnO/CdS/CuGaSe2, were fabricated for photovoltaic applications. Optimization of device structures based on monocrystalline CuGaSe2 led to the highest-to-date power conversion efficiencies for CuGaSe2 solar cells. At room temperature under 100 mW/cm2 AM1.5 illumination a maximum cell efficiency of 9.7% was achieved, given by an ...
M. Saad, H. Riazi, E. Bucher, M. Ch. Lux-Steiner   +3 more
openaire   +1 more source