Results 41 to 50 of about 964,246 (341)

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

Holistic analysis of a gliding arc discharge using 3D tomography and single-shot fluorescence lifetime imaging

Communications Engineering
Gliding arc plasmas, a versatile form of non-thermal plasma discharges, hold great promise for sustainable chemical conversion in electrified industrial applications.
Sebastian Nilsson, David Sanned, Adrian Roth, Jinguo Sun, Edouard Berrocal, Mattias Richter, Andreas Ehn   +6 more
doaj   +1 more source

Co-firing of biomass with coals Part 1. Thermogravimetric kinetic analysis of combustion of fir (abies bornmulleriana) wood [PDF]

, 2010
The chemical composition and reactivity of fir (Abies bornmulleriana) wood under non-isothermal thermogravimetric (TG) conditions were studied. Oxidation of the wood sample at temperatures near 600 A degrees C caused the loss of aliphatics from the ...
A Karabakan, A Khawam, A Mianowski, AC Suarez, Ahu Gümrah Dumanli, AW Coats, C Blasi Di, CD Doyle, D Vamvuka, E Franceschi, E Kastanaki, G Nola Di, G Várhegyi, H Pakdel, J Adánez, JH Flynn, JH Flynn, K Ceylan, KK Pandey, L Quanrum, L Yanfen, LJ Yu, M Muthuraman, M Otero, M Otero, M Otero, ME Sanchez, MJ Avrami, MJ Avrami, MJ Avrami, MP Bernstein, MV Gil, MV Kök, Q Xu, R Lemus, S Vyazovkin, SG Sahu, Sinem Taş, T Ozawa, T Ozawa, Y-W Wu, Yuda Yürüm   +41 more
core   +2 more sources

Titanium‐S23: A New Alloy with Ultra‐High Tensile Toughness Directly from the Solid‐State Processing of Recycled Ti–6Al–4V and Ti–5Al–5Mo–5V–3Cr Powders using Field Assisted Sintering Technology

Advanced Engineering Materials, EarlyView.
This study explores combining two existing aerospace titanium alloy powders, processing them via field‐assisted sintering technology and the subsequent discovery of a novel alloy composition, termed S23, with ultra‐high tensile toughness. Fine‐scale alpha precipitates favorably form in the alloy despite the relatively slow cooling, providing an ...
Samuel Lister, Gavin J. Baxter, Martin Jackson   +2 more
wiley   +1 more source

A study on the relationship between vehicle operating conditions and NOx emission characteristics [PDF]

E3S Web of Conferences
To address the challenges faced by vehicles during actual operation when passing through traffic lights or intersections, where rapid changes in operating conditions can lead to a decrease in SCR efficiency and an increase in NOx emissions, this study ...
Xia Ran, Wang Yu, Feng Yifang, Chen Tao, Qin Jing   +4 more
doaj   +1 more source

Validation of a RANS 3D-CFD Gaseous Emission Model with Space-, Species-, and Cycle-Resolved Measurements from an SI DI Engine

Energies, 2020
Reynolds-averaged Navier–Stokes (RANS) three-dimensional (3D) computational fluid dynamics (CFD) simulations of gaseous emissions from combustion engines are very demanding due to the complex geometry, the emissions formation mechanisms, and the ...
Stefania Esposito, Max Mally, Liming Cai, Heinz Pitsch, Stefan Pischinger   +4 more
doaj   +1 more source

Comparative analysis of alternative fuels in detonation combustion [PDF]

, 2016
Detonation combustion prominently exhibits high thermodynamic efficiency which leads to better performance. As compared to the conventionally used isobaric heat addition in a Brayton cycle combustor, detonation uses a novel isochoric Humphrey cycle which
Azami, M. H., Savill, Mark A.
core   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

Single scattering detection in turbid media using single-phase structured illumination filtering [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
This work shows a unique possibility of visualizing the exponential intensity decay due to light extinction, when laser radiation propagates through a homogeneous scattering medium.
Berrocal E., Johnsson J., Kristensson E., Aldén M.   +3 more
doaj   +1 more source

Real Driving Emissions—Conception of a Data-Driven Calibration Methodology for Hybrid Powertrains Combining Statistical Analysis and Virtual Calibration Platforms

Energies, 2021
The combination of different propulsion and energy storage systems for hybrid vehicles is changing the focus in the field of powertrain calibration. Shorter time-to-market as well as stricter legal requirements regarding the validation of Real Driving ...
Sascha Krysmon, Frank Dorscheidt, Johannes Claßen, Marc Düzgün, Stefan Pischinger   +4 more
doaj   +1 more source