Results 61 to 70 of about 7,208 (307)

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Reduce NOx Emissions by Adsorber-Reduction Catalyst on Lean Burn Engine

, 2013
 The effect of a new catalyst system composed of traditional three way catalyst converter and adsorber-reduction catalysis converter on the emission characteristics and BSFC (Breake Specific Fuel Consumption- BSFC)of a lean burn gasoline engine operated ...
Zhijun Li, Zhijun Li; Tianjin University, Yue, Dongpeng; Tianjin University of Technology and Education, Zhang, Wen; Tianjin University, Chang, Qing; Tianjin University, Liu, Lei; Tianjin University, Chen, Shaoshu; Tianjin University   +5 more
core   +1 more source

Thermal efficiency improvement of lean burn high compression ratio engine coupled with water direct injection

, 2022
The turbocharged downsizing gasoline direct injection (GDI) engines aiming for lower fuel consumption, lower emissions, and higher performance have been regarded as the future hybrid electrical vehicle (HEV) pathway.
An, Yanzhao, Gao, Dingwei, Qin, Jing, Zhang, Bin, Zhang, Qirui, Peng, Zhong, Shi, Hao, Zhang, Zhiyong, Pei, Yiqiang   +8 more
core   +1 more source

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

Excess Air Ratio Management in a Diesel Engine with Exhaust Backpressure Compensation

Sensors, 2020
The paper investigates the operation of a wideband universal exhaust gas oxygen (UEGO) sensor in a diesel engine under elevated exhaust backpressure. Although UEGO sensors provide the excess air ratio feedback signal primarily in spark ignition engines ...
Piotr Kasprzyk, Jacek Hunicz, Arkadiusz Rybak, Michał S. Gęca, Maciej Mikulski   +4 more
doaj   +1 more source

Lean burn versus stoichiometric operation with EGR and 3-way catalyst of an engine fueled with natural gas and hydrogen enriched natural gas [PDF]

, 2007
Engine tests have been performed on a 9.6 liter spark-ignited engine fueled by natural gas and a mixture of 25/75 hydrogen/natural gas by volume. The scope of the work was to test two strategies for low emissions of harmful gases; lean burn operation and
Inge Saanum, Bengt Johansson, Bysveen, Marie, Tunestål, Per, Per Tunestål, Tunestål, Per,, Marie Bysveen, Lund University., Saanum, Inge, Johansson, Bengt, Johansson, Bengt,   +10 more
core   +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

Incidence of hepatic dysfunction is equivalent in burn patients receiving oxandrolone and controls

, 2007
Oxandrolone has been shown to improve lean muscle mass in patients with burns. Hepatic dysfunction is a known side effect of treatment with oxandrolone.
Schulman, Carl, Manning, Ron, Pizano, Louis, Gomez, Ellie, Goldberg, Seth, McCullough, Mona C, Ward, Gillon C, Namias, Nicholas   +7 more
core   +1 more source

Selective NOx Recirculation for Stationary Lean-Burn Natural Gas Engines [PDF]

, 2005
The research program conducted at the West Virginia University Engine and Emissions Research Laboratory (EERL) is working towards the verification and optimization of an approach to remove nitric oxides from the exhaust gas of lean burn natural gas ...
Clark, Nigel, Vellaisamy, Ramprabhu, Swartz, Matt, Tatli, Emre, Thompson, Gregory, Tissera, Chamila, Atkinson, Richard   +6 more
core   +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