Particle

Effect of Organic Solvents on Particle Size When anti solvent was 0.4% (w/v) F68 aqueous solution, the effect of various good solvent was investigated. These organic solvents include ethanol, methanol, PEG 400, propylene glycol. The result as mention in Table 16 & Figure 27 showed that the particles prepared by methanol were the smallest (317 nm) among other organic solvents. Ethanol, PEG 400, and propylene glycol produced the particles having the mean particle size of 525nm, 1274nm, 864nm,…

a drop of water on the microscope slide. Then they will add carmine powder onto the slide. Then they will place a coverslip on top of the solution. This will aid in mixing the solution. Then the students will observe the movement of the carmine particles on low power and high power. In exercise 1, experiment B, the students will need a rubber band, 30% glucose solution, starch solution, I2Kl solution, Benedict’s reagent, hot plate, 200 mL beaker, distilled water, 3 standard test tubes,…

step, can reduce the dimensionality of data and thereby increase the efficiency, accuracy, and clarity of learning systems. However feature selection can be costly endeavour. This paper proposes two new feature selection algorithms, based on binary particle swarm optimisation, with the aim of reducing running time without affecting classification accuracy by combining filter and wrapper approaches. The first algorithm proceeds cautiously by only updating the pbest and gbest, two critical values,…

Particle size distribution Introduction The purpose of this lab was to determine the particle size distribution of a particular soil sample by carrying out sieve analysis and hydrometer analysis tests. For the sieve analysis test, a graph for percent finer versus the grain size was plotted from the data collected. The graph was used to determine whether the soil sample was fine-grained or course-grained. Calculations for uniformity and gradation were then done to determine whether the soil was…

Sigma–Aldrich, St. Louis, USA. Size 3 hard gelatin capsules were kindly donated by Capsugel Co., Ltd., Tokyo, Japan. Fresh Milli-Q water was collected and filtered through 0.45 μm membrane filter before use. Preparation of powders by spray-drying Powder particles were produced using a Buchi B-290 Mini Spray-Dryer (Buchi Labortechnik AG, Flawil, Switzerland) with a high performance cyclone in a closed-mode. Feed solutions of kanamycin (as sulphate) or/and rifampicin were prepared in a co-solvent…

sufficient surface properties of the particles within the mixture to facilitate suitable agglomeration for proper mixing and tableting, these ingredients are known as excipients. Tablets used for medication often require a precise quantity of API and as such, an evenly distributed or ‘homogenous’ mix throughout the stages of…

Particle interaction was, by far, the most important chemistry concept for Mark Wattney to understand. Understanding this concept was crucial to Mark Wattney’s survival as he did not have any water and desperately needed to find or create it. Of course, Mark Wattney would not have been able to find any water on Mars, and even if he could, it would not be sanitary. This meant he had to make it by bonding hydrogen and oxygen molecules. This process allowed Mark Wattney to create 600 liters of…

CHAPTER 4 PSO AND GA TECHNIQUE 4.1 Moth Flame Optimization In the proposed MFO algorithm, I assumed that the candidate solutions are moths and the problem’s variables are the position of moths in the space. Therefore, the moths can fly in 1-D, 2-D, 3-D, or hyper dimensional space with changing their position vectors. Since the MFO algorithm is a population-based algorithm. It should be noted here that moths and flames are both solutions. The difference between them is the way we treat and…

between the cores, so, it needs to protect the core. The materials needed must relatively pervious and bear any exposures to the atmosphere. The filter zones handles the seepage water to maintain the original particles of soils. BH1 soil is suitable for the filter zones, as it consists particles of coarse grained, which is ideal for filtering and handling seepage due to their large sizes. BH2 is suitable for stability zones as it has low plasticity soil that shows low volume change and have a…

Will Changing the Temperature of the Cream Affect the Mass of the Butter Particles? Purpose: The purpose of the experiment was to see if the temperature of the cream would affect the mass of the dried butter. Background Information: Cream is the part of the milk that rises to the top during milk production. Cream is a liquid at room temperature, but it is very versatile and contains certain characteristics that allows it to change form. (Lower, 2017). Using only a little force, the cream…