Electrostatics

Many people may ask the question: why study such an exotic sensory system such as the electrosensation in electric fish? Could it be because of the natural curiosity that we as human’s exhibit, or maybe because we are intrigued by the various morphological and physiological adaptations that are seen across a plethora of environments? Well, more evolved organisms have achieved their higher traits not from new mechanisms that spontaneously appeared, but from old mechanisms that they share with simpler organisms. Therefore, it is through the study of simpler process that humans hope to better understand their own complex process. Electric fish have perfected the analysis of temporal information and have shown that they can very easily decipher temporal signal characteristics (Heiligenberg 1990). Better understanding how these incredible fish can so efficiently process temporal ques will give humans insight into how they can process temporal cues in something like speech perception (Heiligenberg 1990). In the fresh waters of South America, lives a type of weakly electric fish often referred to as the gymnotiform fish. These specialized animals are able to generate electrical fields via an electric organ that is located on their tales (Heiligenberg 1990). Electroreceptors that surround their bodies can not only detect their own electric field signature, but also the ones generated by other weakly electric fish in close proximity (Heiligenberg 1990). When the fish is near an…

3.2. Molecular Electrostatic Potential (MEP) surface of Pyrazolooxazines. The correlation between the molecular structure and the physicochemical property of molecules, including biological molecules and MESP-based drugs, to distinguish electron rich zones (electrophilic attack) from electron-poor ones (a nucleophilic attack) 16, 17. We represent in this study the molecular surface of the electrostatic potential (MESP), the electrostatic potential (ESP) and the electron density (ED). MESP is a…

Indeed, electrostatic phenomena are the sights we see most of the day. Some of us may have fun to rub a plastic ruler on our hands and then bring it closer to our friend's hair until it appears that a few strands of hair stood up because of it. Or try using a balloon, rub it into our hair and then stick it on the wall, see what happens? The balloon will stick to the wall. Or on a large scale electrostatic phenomena that you often see in an emergency because of lightning static load static…

We cannot addresses directly sedimentation / floating problem by electrostatic and steric stabilization. Particle sedimentation occurs from different density of dispersed phase and the dispersion medium. Higher difference in densities faster the settling of particles. The gel network stabilization represents the principle to produce colloids are stable in both aggregation and sedimentation. Polymer is added to the colloidal suspension to form a gel network and it is characterized by shear…

the simplest things to do, but one of the most effective at the same time. Similarly with electrostatic discharge, the technician can use the ESD strap and mat to help prevent the smaller amounts of electricity from harming the user. Electrostatic discharge – This is a very common risk that occurs quite frequently when handling IT equipment. With all electrical equipment you touch and fiddle with, you are increasing the chance of experiencing electrostatic discharge. Metal conductors that get…

Electrostatics is a big branch inside of the tree of physics. When studying electrostatics you will learn about electric chargers that do not move. Static electricity is one of the many things that are covered in electrostatics. An object that has accumulated electric charge has static electricity (“Electricity for kids”, 1). The charges are not on the move nor do they flow from one place to another. It is easy to remember that the charges don’t move in static electricity, because static can be…

Abstract. The theoretical treatment of the equilibrium structure of the derivatives was based on the DFT method using the functional B3LYP with the base 6-311 ++ G (d, p). To distinguish the molecular electrostatic potential surface (MESP), we used the principle of HSAB (Hard Soft Acid and Base), in order to have the centers of activity of a molecule and the effects of substitution on the systems of pyrazolooxazine. These have anti-inflammatory activities. In our work, we have applied methods of…

emits different wavelengths, which were observed as different coloured lines with specific amounts of space between them. The emission spectra for various elements are different because each element requires a different amount of energy to overcome the electrostatic forces within the atom and transition to a higher energy level. When electrons return to their original energy level, they release a photon of energy that is equal to the amount of energy that was necessary to make the transition.…

activity of known and studied compounds. Using quantitative structure activity relationships allows for the activity or toxicity of compounds to be predicted. Quantitative structure activity relationships are important to study because being able to predict, model, and analyze chemicals, and chemical compounds are important. One application of quantitative structure activity relationships is to examine the activity and toxicity that new drugs, that people take, have. The metabolism of the…

• An oscillators. • A signal level detectors. • A solid-state output switching devices. • An adjustment potentiometers. Fig. 5.2 capacitive proximity sensor Capacitive proximity sensor are similar in size, shapes, and concepts to inductive proximity sensor. However unlike the inductive sensors which use induced magnetic fields to sense object, capacitive proximity generate to an electrostatic field and reacts to changes in the capacitance caused when a target enters the electrostatic…