Results 71 to 80 of about 48,178 (265)

Reference model-based optimization of sliding mode control for second-order systems

Measurement + Control
In this study, the design of Sliding Mode Control (SMC) has been carried out based on a second order reference model with a specified transfer function.
İbrahim Halil Teke, Nusret Tan
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Optimization of combined thermal circuits gas turbine expander power plants

Вестник Самарского государственного технического университета. Серия: Технические науки, 2023
In this paper, thermal schemes are proposed and the principle of operation of combined power plants of a new type for a thermal power plant is given. Thermodynamic analysis of parameters of thermal circuits of combined power gas turbine expander plants ...
Svetlana A. Gulina, Leonid P. Sheludko
doaj  

Genetic algorithm optimization of heliostat field layout for the design of a central receiver solar thermal power plant. [PDF]

Heliyon, 2023
Haris M, Rehman AU, Iqbal S, Athar SO, Kotb H, AboRas KM, Alkuhayli A, Ghadi YY, Kitmo.   +8 more
europepmc   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Stable diesel microemulsion using diammonium ionic liquids and their effects on fuel properties, particle size characteristics and combustion calculations

Scientific Reports
Ecofriendly and stable Fuel Microemulsions based on renewable components were prepared through solubilizing ethanol in diesel and waste cooking oil blend (4:1).
H. A. El Nagy, Mahmoud Abd El-Aziz Mohamed   +1 more
doaj   +1 more source

Distribution of Clay Minerals in Light Coal Fractions and the Thermal Reaction Products of These Clay Minerals during Combustion in a Drop Tube Furnace

Energies, 2016
To estimate the contribution of clay minerals in light coal fractions to ash deposition in furnaces, we investigated their distribution and thermal reaction products.
Sida Tian, Yuqun Zhuo, Zhonghua Zhan, Xinqian Shu, Zhizhong Kang   +4 more
doaj   +1 more source

Influence of age, habitat elevation, and distance to a thermal power plant on pathomorphological findings in the European brown hare (Lepuseuropaeus P.). [PDF]

Vet Q, 2023
Marinković D, Relić R, Lakić N, Aničić M, Beuković D, Davidović V, Lavadinović V, Popović Z.   +7 more
europepmc   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Remaining useful life prediction for fatigue crack growth based on VSG-ELM model

Reli fadian
Overdue service of thermal power units has become a trend, but fatigue crack of turbine rotor steel seriously affects the operation safety of steam turbine units.
ZHENG Weidong, XIONG Wei, LI Xiaoyan, BAI Peiqiang, LIN Siyu, CUI Xionghua, LYU Yanjun, SHI Rui   +7 more
doaj   +1 more source