Particle

biochemistry of our system. How individual molecules are separated or a mixture of molecules are separated can be dependant of their size. Size exclusion chromatography (SEC), is the controlled separation technique that is based on the size of the particles in relation to the pore size (Barth and Saunders 2012). The separation process veers to be quick for large molecules and slower for smaller molecules. The process would involve the large macromolecules to permit through the column bed, as the…

signal intensities of Cu-BEA-Nb and Cu-BEA-CeNb aged catalysts decreased compared to those of the fresh catalysts. Fig. 6 represents the TEM images of the fresh SCR catalysts. By comparing the EDS electron images of the catalysts, the Cu, Ce, and Nb particles on catalyst surface were distinguished. As shown in Fig. 6(a), copper may disperse as Cu2+ or CuO species on the catalyst surface. In Figs. 6(c) and (d), Ce and Nb were observed, because of metal oxides of CeO2 and Nb2O3 as shown in the XRD…

INTRODUCTION: Exercise 3.1 - Osmosis: Toward the start of lab, we found out about diffusion which can happen as active transport or passive transport. Diffusion is known as delivering a net development of solute particles from locales of higher focus to districts of lower concentration. Active transport is the development of an atom over the plasma layer. Active transport is when atoms move against their focus slopes. We discovered that dynamic transport requires vitality, and the motivation…

fluidized bed is when the air make the solid to behave like a fluid. For this experiment, two columns are use which one column are filled with sand and the other one filled with aluminum oxide. The bed height of aluminum oxide is 100 mm and have a particle size about 250 micron (mesh 60). The minimum fluidization velocity is used to determine the pressure drop. As mentioned above, when the solid behave like a fluid the bed is at fluidize state. So, minimum fluidization occur when the aluminum…

with the host cell. Therefore, infection requires that the virus get through the cellular membrane. Some viruses remain outside the cell. They attach to the membrane at specific receptor sites and or antigen sites called VAPs (Virius Attachment Particles). Once attached the virus injects its DNA or RNA into the cell [3]. Enveloped viruses are enclosed in a membrane similar to that of the host cell. The virus and the envelope fuse and the virus enter the cell through endocytosis. Viruses are not…

Albert Einstein is widely regarded as one of the most influential figures of the late 19th and early 20th centuries. His papers revolutionized modern science, paved the way for many advancements in physics and mathematics, and confused college students writing papers on him everywhere. As one of these confused students, I will be going into short detail on his early life and, if I can manage to explain it, revolutionary papers. Albert Einstein was born in Ulm, Germany on March 14th, 1879, but…

Blanching: Blanching is a relatively mild heat treatment performed to improve the quality of preserved or stored food products. It is used to remove trapped gases from the product, soften the product, fix product color, or inactivate enzymes. It also eliminates or reduces the numbers of relatively heat-sensitive pathogens and spoilage organisms. • Water and steam blanchers: Water and steam blanchers are the most commonly used blanchers in the food processing industry • Time and temperature…

fission does not occur naturally in the environment whereas fusion does. In reference to the byproducts of the reactions, fission will produce an excessive amount of highly radioactive particles. In contrast, "few radioactive particles are produced by fusion reactions, but if a fission "trigger" is used radioactive particles will result from…

When the stone reaches an appropriate size or shape, it prevents the free flow of urine and blocks the flow of urine or damages the kidney or other part of the urinary stone. i) Extracorporeal shock wave lithotripsy (ESWL) (Attasit et al., 2009) Extracorporeal shockwave lithotripsy (ESWL) is the most widely used procedure for the treatment of kidney stones. ESWL acts as an alternative approach to disintegrate stones developed in the kidney and in the upper urinary tract. ESWL uses high…

mesothelium. There is a common tendency to get confused between mesothelioma and lung cancer. But the former infects the lining whereas the latter affects the lung itself. Mesothelioma patients are those unfortunate people who have inhaled in asbestos particles for long durations of time. Malignant mesothelioma is of three types. Pleural mesothelioma is the most common type, which affects the pleura, or the outer coverings of lungs and internal chest wall. The peritoneal type affects the…