Results 51 to 60 of about 4,606 (263)

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Lean combustion effects on a high-compression methanol SI engine derived from a turbocharged miller cycle gasoline engine

Advances in Mechanical Engineering
Methanol, a versatile carbon-neutral fuel, offers significant potential for reducing greenhouse gas emissions in spark-ignition (SI) engines. This study systematically compares the combustion and emission characteristics of methanol and gasoline under ...
Wei Duan, Xiaohua Geng, Shuya Zhang, Li Wang, Jinyuan Pan   +4 more
doaj   +1 more source

Natural Gas-Fuelled, Spark-Ignited = 1 /Twc Engine

Communications, 2001
Description of the implementation of stoichiometric concept on natural gas-fuelled, spark-ignited engine for co-generation plant (CHP). Description of behavior of closed loop -control system and exhaust gas aftertreatment.
Michal Takats
doaj   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Numerical analysis of misfire in an automotive lean-burn direct-injection spark-ignition engine

Case Studies in Thermal Engineering
Charge dilution strategies, such as exhaust gas recirculation and lean-burn operation, enhance internal combustion engine (ICE) efficiency and reduce NOx emissions.
Linus Engelmann, Jongkwon Lee, Bok Jik Lee, Jiho Kim   +3 more
doaj   +1 more source

Alcohol Fuel in Passenger Car

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
The present article studies the effects of combustion of high-percentage mixture of bioethanol and gasoline on the output parameters of a passenger car engine.
Adam Polcar, Vojtěch Kumbár, Jiří Čupera   +2 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Performance Evaluation of an Ultra-Lean Combustion Studies in IC Engines

MATEC Web of Conferences, 2016
An investigation was made to determine the effects of ethanol at ultra-lean effective systems utilizing an experimental study. The present study is planned to develop and evaluate the performance, emission and combustion characteristics of the ultra-lean
Puli Ravi Kumar, Gandhi P., Vijaya Kumar K., Babitha Damera, Puli Manoranjan murthy Kumar   +4 more
doaj   +1 more source