Results 121 to 130 of about 1,001,066 (299)

Thermoelectric efficiency at maximum power in low-dimensional systems

, 2010
Low-dimensional electronic systems in thermoelectrics have the potential to achieve high thermal-to-electric energy conversion efficiency. A key measure of performance is the efficiency when the device is operated under maximum power conditions.
Linke, Heiner, Nakpathomkun, Natthapon, Xu, Hongqi Q.   +2 more
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Solar reduction of carbon dioxide on copper-tin electrocatalysts with energy conversion efficiency near 20. [PDF]

Nat Commun, 2022
Gao J, Li J, Liu Y, Xia M, Finfrock YZ, Zakeeruddin SM, Ren D, Grätzel M.   +7 more
europepmc   +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

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

Retraction Note: Supported black phosphorus nanosheets as hydrogen-evolving photocatalyst achieving 5.4% energy conversion efficiency at 353 K. [PDF]

Nat Commun, 2023
Tian B, Tian B, Smith B, Scott MC, Hua R, Lei Q, Tian Y.   +6 more
europepmc   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Enhanced energy conversion efficiency in PVDF/WS2 hybrid piezoelectric nanogenerators

Discover Materials
The development of flexible piezoelectric nanogenerators (PENGs) has gained considerable attention for harvesting mechanical energy from ambient sources, especially human motion.
Munni, Himani, Shilpa Rana, Jasvir Dalal, Bharti Singh   +4 more
doaj   +1 more source

Highly efficient photochemical HCOOH production from CO2 and water using an inorganic system

AIP Advances, 2012
We have constructed a system that uses solar energy to react CO2 with water to generate formic acid (HCOOH) at an energy conversion efficiency of 0.15%.
Satoshi Yotsuhashi, Hiroshi Hashiba, Masahiro Deguchi, Yuji Zenitani, Reiko Hinogami, Yuka Yamada, Momoko Deura, Kazuhiro Ohkawa   +7 more
doaj   +1 more source

Diurnal and Seasonal Variations of Photosynthetic Energy Conversion Efficiency of Field Grown Wheat. [PDF]

Front Plant Sci, 2022
Song Q, Van Rie J, Den Boer B, Galle A, Zhao H, Chang T, He Z, Zhu XG.   +7 more
europepmc   +1 more source