Vibration

When two or more atoms chemically bond with each other, the resultant chemical structure is a molecule. The familiar water molecule, H2O, consists of two hydrogen atoms and one oxygen atom, which bond together to form water . Atoms can form molecules by donating, accepting, or sharing electrons to fill their outer shells. These processes go under Covalent or Ionic bonding. A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. It only happens between…

FTIR analysis of the stem bark extracts of Cassia fistula has absorption bands and the wave numbers (cm-1) of the prominent peaks obtained were described in Table 2. The peak at a frequency of 3463 cm-1, 1618 cm-1, 1448.3 cm-1 and 1241.9 cm-1 were strong while the others vary from medium to weak. Discussion: Phytochemical studies revealed the presence of secondary metabolites like tannins, flavonoid, carbohydrate, saponins, glycosides and phenol in the leaf extract while tannins, flavonoids,…

Music is a wonderful tool for everyone to experience something different. Each person can relate to music in a positive way. Music releases hormones in the body that make you feel good. Something that intrigued me about music is the way it impacts a person’s life. Music is able to touch the lives of many in a way that can’t be described. In my case music was my get away. Anytime I was having a bad day I would turn up my music and sing as loud as I could. In that moment nothing mattered. The bad…

Music is claimed to be subjective, meaning that everyone has his or her own personal style and taste. Musical subjectivity claims that everyone’s’ favorite singer is the best to them, and that another persons preference has no relevance to another. That statement denies that there could objectively be a best singer of all time. Which can be a very dangerous slope to go down, for if one claims that no one could ever be the best, they are denying the fact that Freddie Mercury is indeed that…

incorporates the Briggs & Stratton ReadyStart® starting system. No prime and no choke required, just pull the cord for power. This engine is lighter in weight which makes it easier to maneuver the mower. It also reduces noise levels and has less vibration for added comfort. The All Wheel 4X4 drive delivers power to all four wheels which makes it ideal for hilly or uneven terrain. The 8 inch front and rear wheels allows this mower to maneuver well in all types of grass or terrain. All this is…

INVESTIGATION OF ELECTRO-MECHANICAL FACTORS EFFECTING PIEZOELECTRIC ACTUATOR FOR VALVELESS MICROPUMP CHARACTERISTICS Abstract In this study, a new micropump was designed which is suitable for medical applications regarding size and flow rate. When a micropump is used to control the amount of drug delivery, the flow rate is a key parameter and can be controlled with the diaphragm displacement. The amount of displacement depends on the thickness of piezoelectric element, voltage,…

The Nation Research Council released a statement saying “Hydraulic Fracturing does not pose a high risk of inducing earthquakes.” There have been seismic vibrations detected on a drill site during hydraulic fracturing but is not known if the vibrations came from the surface or deep underground where the fracturing is happening. On a drill location, there is multiple diesel powered equipment running, sometimes just for the hydraulic injection into the…

Ethyl acetate are soluble for the polar solvents. However Chloroform, Hexane and Benzene are insoluble for polar solvents. The characterization of infrared spectrophometry there is symmetric vibration and asymmetric vibration. Symmetric vibration is pulling in two different direction and the asymmetric vibration is pulling in the same direction. When a light is shining, the molecule will vibrate or will cause stretching. In the FTIR Spectrum Compound II there is a broad absorption of OH. Also…

Essay (1) Hearing aids Done by: Shaker Class: 7(C) Teacher: Nemah Figure 1 (hearing aid) If people wear hearing aids then they must have a problem with their ears, and the one major dis-advantage that led people using hearing aids is deafness, now people may ask what deafness is. Well it is a disease that might hit you when new babies are born, or sometimes when you here a loud sound like an explosion that’s in front of you, furthermore, if deafness hits you it might be either mild,…

15. What is modulation? Give its advantages. Answer Definition of Modulation The message signal having weak strength cannot be transmitted directly through the communication channel Since carrier signal carries the message signal therefore, certain carrier signal parameters are changed according to the message signal. A method in which message signal is transmitted to the receiver with the help of carrier signal is called modulation. In this, both carrier signal and message signal are combined…