Particle

dehydrate (DCPD). Amorphous calcium phosphates, prepared by precipitation from supersaturated solutions, can also react to form apatitic cements since they are thermodynamic unstable with respect to HA and have a setting reaction more independent of particle size. Calcium phosphate cement containing an antibiotic can be used for filling bone defects and to ensure local antibiotherapy. Therefore, in the present chapter proposal, cement paste were prepared by combining cement liquids comprised of…

The Difference between Detergent and Soap The reason for this case study is to dissect the Difference between detergent and soap. In this case study, I will define the meaning of the cleaning agents, I will give you an introductory, I will discover how they are made, I will discover how they work, and why one cleaning agents is better than the other. This case study will be designed using the descriptive scientific method. The meanings of Detergent and Soap A detergent is a substance that cleans…

Thus, along with its color kaolin is commercially more valuable when it is fine particle size. Table 5.1 and figure 5 shows the grain size analysis result obtained from Haile Mickale, (2003). According to these data, the particle size distributions show that the kaolin is rich in terms of clay size fractions (63 % < 10 μm and > 53 μm) which are in agreement to most of the industry specifications. Regarding…

The vaccine we have designed will be delivered through a shot intramuscularly. In this respect it will be delivered in the same area that a normal flu virus vaccine would. This vaccine will be delivered once before the patient has gotten the Ebola virus, because Ebola is not constantly changing like the flu virus and will not need a new vaccine every year unless the disease mutates. Since we predict the virus won’t be constantly changing, a one-time delivery to the patients would be the best…

without any obvious attention of the physical grounds of the material or of its nature. Example: When a solid bar is supporting a load, each constituent of the bar exerts push on the particles below it. When a liquid is in a closed vessel under pressure, each particle of the liquid exerts pressure on other particles. The walls of the container and the surface that is tempting the pressure, exerts push against them in reaction. These forces are actually the remaining result of a wide-ranging…

Space is a huge sea of unknown. We are simply specks of dust, trying to figure out the behaviors of giants. Thus it is apparent that the specks can not know much. For now. One of the biggest mysteries is the expansion of the universe; in the 1990s, we knew that theoretically, our ever-expanding universe was slowing down due to gravity, and that it would eventually collapse or keep expanding, just slower as time went on. However, thanks to the Hubble Space Telescope, we now know that to be dead…

observable universe. The first galaxies formed around 13.5 billion years ago after the big bang and the dark ages. NASA states that, “After the Big Bang, the Universe was composed of radiation and subatomic particles.” There are two theories about what happened next. The first theory is that small particles slowly team up and gradually form stars, star clusters, and eventually galaxies. The second theory states that the universe first organize as immense clumps of matter that later subdivided…

When we think about ice, snow or rain falling from the sky, we imagine some perfect beautiful crystals made of water molecules. Scientist had discovered that those crystals originate because some dust particle, helped with the wind, goes to clouds and then water surround it. Because high in the atmosphere the temperatures are so low, those water molecules freeze giving a structure called ice crystals. Now we know that precipitation from the sky are much more that simple dust and water. They…

Sedimentation, dual media filtration. Coagulation involves the addition of a chemical which is either aluminum or salt to dissolve into the raw. This then helps the solids and organics mix in the raw water effectively. Flocculation – Since particles have a neutral charge and stick…

atmosphere would be cosmic rays that emit radiation in big rays that reach the Earth from space, rocks and debris that emit radioactive radon gas, and plants that can absorb excess radiation from the soil. Artificial radiation includes alpha particles, beta particles, x-rays and gamma rays. Though radiation was understood, when speaking of its origin, the dangers of it were not quite as known and actually caused the death of some people who worked studying radiation. Too much exposure to…