Results 201 to 210 of about 591,362 (261)

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Influence of engine heat source conditions on a small-scale CO₂ power generation system. [PDF]

Fundam Res
Li L, Tian H, Lin X, Zeng X, Wang Y, Shi L, Wang X, Liang X, Shu G.   +8 more
europepmc   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

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Heat source performance for solar–ground source heat pump

Journal of the Energy Institute, 2005
The solar and ground source performance for solar–ground source heat pump in Tianjin, China in winter was studied in the present paper. The results were used for the design and analysis of solar energy collector and ground heat exchanger. The feasibility of using solar–ground source heat pump in the district was provided.
Y. Bi, L. Chen, C. Wu
openaire   +1 more source

The research on the heat source characteristics and the equivalent heat source of the arc in gaps

International Journal of Heat and Mass Transfer, 2018
Abstract The discharging process causes the multiple physical field coupling problem, which make it complicated to analyze the heat effect of discharging arc. The heat effect of the arc can be divided two parts including the heat effect of the arc column and the heat effect on the cathode surface.
Kai Liu, Fan Yang, Shaohua Wang, Bing Gao, Chong Xu   +4 more
openaire   +1 more source

Optimal Control of Heat Source in a Heat Conductivity Problem

Optimization Methods and Software, 2002
An optimal control problem governed by the heat source in a heat conductivity problem is presented. An estimate for the weak solution of heat conduction problem is proposed in the space L 2 , and the problem is numerically implemented using the method of projection of gradient. Sensible and successful results are obtained on a test problem.
openaire   +2 more sources

Cooling and Heating with Ground Source Energy

International Journal of Energy Optimization and Engineering, 2012
In the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasis has been put on utilisation of the ambient energy from ground source and other renewable energy sources. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency
openaire   +2 more sources

Heat Sources for the Heat Pumps

2006
Highest significance for the heat pump installation has its heat source/sink. In other words, the heat pump system for heating application has higher efficiency if a heat source has better thermodynamic properties. Widely used low-temperature heat sources and heat sinks today are: water (river, lake, groundwater, or sea water), ground, air, or the Sun.
Grozdek, Marino, Balen, Igor
openaire   +2 more sources

Sources of Geothermal Heat

2013
The main purpose of this chapter is to explain how a relatively shallow geothermal resource from which heat is to be extracted relates to the dynamics of the earth. The structure of the interior of the earth is described in general terms. Tectonic plates and events taking place at their boundaries are explained, elaborating on subduction boundaries and
openaire   +1 more source