Results 101 to 110 of about 992,076 (345)

Modeling of downconverter based on Pr3+-Yb3+ codoped fluoride glasses to improve sc-Si solar cells efficiency

AIP Advances, 2012
Quantum cutting via a two-step resonant energy transfer in a spectral downconverter of Pr3+-Yb3+ codoped fluoride glass is investigated numerically by proposing up and solving the theoretical model of rate equations and power propagation equations. Based
P. Song, C. Jiang
doaj   +1 more source

Model selection for waste conversion efficiency and energy demands in a pilot for large-scale larvae treatment [PDF]

, 2020
Evgheni Ermolaev, Erik Dahlquist, Cecilia Lalander, Björn Vinnerås, Eva Thorin   +4 more
openalex   +1 more source

Study on Comparisons of Bio-Hydrogen Yield Potential and Energy Conversion Efficiency between Stem and Leaf of Sweet Potato by Photo-Fermentation [PDF]

, 2022
Haorui Zhang, Tingzhou Lei, Shijie Lu, Shengnan Zhu, Yameng Li, Quanguo Zhang, Zhiping Zhang   +6 more
openalex   +1 more source

The ultimate efficiency of photosensitive systems [PDF]

These systems have in common two important but not independent features: they can produce a storable fuel, and they are sensitive only to radiant energy with a characteristic absorption spectrum.
Buoncristiani, A. M., Byvik, C. E., Smith, B. T.   +2 more
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

The role of engineering in organic farming – case energy crops [PDF]

, 2007
Energy self-reliance and a closed nutrient cycle are basic principles of organic farming ever since. Engineering sciences methods in energy accounting may support efforts to introduce these principles into praxis.
Schäfer, Winfried
core  

Closed-loop approach to thermodynamics

, 2016
We present the closed loop approach to linear nonequilibrium thermodynamics considering a generic heat engine dissipatively connected to two temperature baths.
Benenti, G., D'Angelo, Y., Goupil, C., Herbert, E., Lecoeur, Ph., Ouerdane, H.   +5 more
core   +3 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

NASA's high efficiency and radiation damage solar cell program [PDF]

The conversion efficiency and the life expectancy of solar cells and arrays were evaluated for space applications. Efforts were made to improve the understanding of the conversion of electromagnetic radiation to useful forms of energy.
Randolph, L. P.
core   +1 more source