A5052271644- Advanced biosensing and bioanalysis techniques
- Rare-earth and actinide compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Gear and Bearing Dynamics Analysis
- Adhesion, Friction, and Surface Interactions
- CRISPR and Genetic Engineering
- Covalent Organic Framework Applications
- Tribology and Lubrication Engineering
- Molecular Sensors and Ion Detection
- Intermetallics and Advanced Alloy Properties
- Physics of Superconductivity and Magnetism
- Plant Virus Research Studies
- Poxvirus research and outbreaks
- Advanced ceramic materials synthesis
- Mechanical stress and fatigue analysis
- Superconductivity in MgB2 and Alloys
- Magnetic and transport properties of perovskites and related materials
- Magnetic Properties of Alloys
- Thermal properties of materials
Pennsylvania State University
2005-2024
A first-principles approach to calculating the elastic stiffness coefficients at finite temperatures was proposed. It is based on assumption that temperature dependence of mainly results from volume change as a function temperature; it combines calculations constants 0 K and phonon theory thermal expansion. Its applications Al, Cu, Ni, Mo, Ta, NiAl, Ni₃Al up their respective melting points show excellent agreement between predicted values existing experimental measurements.
Thermodynamic fluctuation among many electronic states in systems with 'itinerant-electron' magnetism is addressed a first-principles formulation of the Helmholtz energy. The Ce γ–α phase transition used as an illustrative case. kBln(2J+1) form for magnetic entropy that commonly found literature replaced expression derived from configurational fluctuations nonmagnetic, ferromagnetic, and antiferromagnetic states. Predicted first- second-order transitions are close accord experiment. mixture...
Elasticity tensor components, Cij, the crystallographic dependence of Poisson's ratio, phase stability, and vibrational spectra are computed for nonmagnetic magnetic CeMg (1:1 Ce:Mg) structures using density functional theory. Results from both generalized gradient approximation (GGA), GGA+U, based upon an effective on-site Coulomb potential, Ueff, investigated. The GGA low energy structure, with wavevector along [110], disagrees experiment, while [100] structure experiment is predicted as 0...
The widespread use and subsequent accumulation of florfenicol (FFC), a common antibiotic, through the food chain poses significant risks to aquatic ecosystems human health, necessitating effective strategies for its removal from water bodies. To solve challenge, herein, we developed novel aluminum-based metal–organic framework CAU-1, engineered efficient adsorption FFC. CAU-1 contains plentiful –NH2 μ-OH groups with positively charged on surface. In process, perform hydrogen bonding...
Ethephon (ETH) is a plant growth regulator extensively utilized in agriculture, but its overuse associated with several health issues. However, detecting ETH sensitively and easily the field challenging due to complexity time-consuming operation of current approaches. In this study, we synthesized aluminum-based metal-organic frameworks (CAU-1) as fluorescent probes for detection fruit. exposure enhanced shifted light green fluorescence CAU-1 blue through high absorption phosphate by...
Research has shown that the interfacial shear strength in an asperity contact is generally a linear function of pressure with maximum value below substrate material. further suggests properties surface-film materials micro-contact largely govern shear-strength-pressure relation and attainable strength. This paper studies effect boundary films on frictional behaviour rough-surface contacts incipient sliding. Two parameters are used to describe shearing film. One proportionality constant...
This article discusses two very different points of views the behaviour plastically deformed asperity contacts with friction loading. A fundamental mechanics study is carried out using concept contact hydrostatic pressure. The reveals various features view-points. Some literature results are subsequently analysed. analysis suggests that force may significantly reduce pressure thereby reducing load capacity along other consequences in tribo-systems. increase understanding microcontacts and be...