Investigating nonlinear dynamic properties of an inertial sensor with rotational velocity-dependent rigidity.

This study investigates the nonlinear dynamics of a system with frequency-dependent stiffness using a MEMS-based capacitive inertial sensor as a case study. The sensor is positioned directly on a rotating component of a machine and consists of a microbeam clamped at both ends by fixed supports with a fixed central proof mass. The nonlinear behavior is determined by electrostatic forces, axial and bending motion coupling, and frequency-dependent stiffness.

Analyzing the effects of polymeric dielectric materials on micro capacitive pressure sensors: A model incorporating displacement-dependent porosity.

Recently, the extensive utilization of porous polymeric materials to amplify the sensitivity of capacitive devices is noticeable. The absence of an effective mathematical model for studying these devices has spurred the development of a comprehensive mathematical model in the current work. This model is formulated to analyze the static and dynamic behavior of systems incorporating a porous polymer dielectric material within the gap between flexible and fixed microplates.

Structural Insight into Privileged Heterocycles as Anti- and .

Trypanosomiasis is caused by parasitic protozoan trypanosomes in vertebrates. T. cruzi and T.

Thermo-vibrational analyses of skin tissue subjected to laser heating source in thermal therapy.

Laser-induced thermal therapy, due to its applications in various clinical treatments, has become an efficient alternative, especially for skin ablation. In this work, the two-dimensional thermomechanical response of skin tissue subjected to different types of thermal loading is investigated. Considering the thermoelastic coupling term, the two-dimensional differential equation of heat conduction in the skin tissue based on the Cattaneo-Vernotte heat conduction law is presented.

Green synthesis of nonprecious metal-doped copper hydroxide nanoparticles for construction of a dopamine sensor.

Copper oxide nanoparticles doped with nonprecious metal species (Ni and Mn) were synthesized. A glassy carbon electrode (GCE) was modified by drop-casting of nanostructure suspensions, constructing Ni:Cu(OH)/GCE, Mn:Cu(OH)/GCE and Cu(OH)/GCE. The voltammetric oxidation of dopamine (DA) by the constructed electrodes confirmed that the electrocatalytic oxidation of DA is a reversible, pH-dependent, diffusion-controlled process; the best response was obtained by Mn:Cu(OH)/GCE.