Dependence of Cytoplasmic temperatures on the Vibrational energies of molecules in a eukaryotic cell Nucleus

This paper presents a statistical model to show the dependence of cytoplasmic temperatures on the vibrational kinetic energies of molecules in a eukaryotic cell nucleus. The probability distribution 𝑃(𝐸_𝑁) of energy states of cell nucleus 𝐸_𝑁 is derived using canonical ensemble framework and the vibrational energies of molecules are quadratic function of Temperature. It has been postulated that vibrational energies changes the reaction potentials of processes making certain reactions favorable. These favorable reactions explains the evolutionary processes such as mutation at molecular level. Natural Selection is simply just favorable reactions of molecules affected by the surrounding Temperature. The effect of temperature on vibrational energies of molecules can be effectively used to study cancerous mutations and astrobiology.

Energy Harvesting Enhancement by Vibrational Resonance

The idea to use environmental energy to power electronic portable devices is becoming very popular in recent years. In fact, the possibility of not relying only on batteries can provide devices longer operating periods in a fully sustainable way. Vibrational kinetic energy is a reliable and widespread environmental energy, that makes it a suitable energy source to exploit. In this paper, we study the electrical response of a bistable system, by using a double-well Duffing oscillator, connected to a circuit through piezoceramic elements and driven by both a low (LF) and a high frequency (HF) forcing, where the HF forcing is the environmental vibration, while the LF is controlled by us. The response amplitude at low-frequency increases, reaches a maximum and then decreases for a certain range of HF forcing. This phenomenon is called vibrational resonance. Finally, we demonstrate that by enhancing the oscillations we can harvest more electric energy. It is important to take into account that by doing so with a forcing induced by us, the amplification effect is highly controllable and easily reproducible.

Microenergy Harvesting Applications for Outdoor Power Equipment

Energy harvesting has generated great interest in recent years due to its usefulness in powering Wireless sensor networks (WSN). Energy harvesters are capable of harvesting energies from the environmental sources such as wind, solar, noise and vibrations [1]. They are an alternative source of power as batteries have a limited life and need constant replacing [2]. In hazardous or hard to reach places, energy harvesters are a feasible option as they are capable of providing constant source of power without any maintenance. Many energy harvesters developed mostly work on vibrational kinetic energy as vibrational energy is readily available even in closed environments as compared to solar or wind energies. The kinetic energy harvesters developed so far have been electromagnetic, piezoelectric or electrostatic and are capable of producing energy from micro watts to mili-watts at various frequencies [3, 4].

Vibrational calculations in formaldehyde: the CH stretch system

An alternative procedure for the calculation of highly excited vibrational levels in S0 formaldehyde was developed to apply to larger molecules. It is based on a new set of symmetrized vibrational valence coordinates. The fully symmetrized vibrational kinetic energy operator is derived in these coordinates using the Handy expression [Molec. Phys. 61, 207 (1987)]. The potential energy surface is expressed as a fully symmetrized quartic expansion in the coordinates. We have performed ab initio electronic computations using GAMESS to obtain all force constants of the S0 formaldehyde quartic force field. Our large scale vibrational calculations are based on a fully symmetrized vibrational basis set, in product form. The vibrational levels are calculated one by one using an artificial intelligence search/selection procedure and subsequent Lanczos iteration, providing access to extremely high vibrational energies. In this work special attention has been given to the CH stretch system by calculating the energies up to the fifth CH stretch overtone at ∼16000 cm−1, but the method has also been tested on two highly excited combination levels including other lower frequency modes.