seen from the figure that RMSD curve for mutant protein is moving in a narrow window of ~3.0 Å with a rise in peak at ~15 to 16 ns. Visual inspection of the trajectory in VMD (visual molecular dynamics) showed that during this time period the electrostatic loop undergo conformational change. Especially a small helical part of this loop achieved random coil conformation but quickly reverted back
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Complete the following statement: When a glass rod is rubbed with silk cloth‚ the rod becomes positively charged as a) negative charges are transferred from the rod to the silk. b) negative charges are transferred from the silk to the rod. c) positive charges are created on the surface of the rod. d) positive charges are transferred from the silk to the rod. e) positive charges are transferred from the rod to the silk. 21.3.1. Complete the following statement: When a glass rod is rubbed
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Introduction:- Pollutants in the air threaten the lives of everything living on earth. They cause acid rain and smog‚ weaken the ozone layer‚ increase the chances of cancer and contribute to changing the climate of the world. Pollutants can be invisible and often we don’t even realize that we’re making them. Polluted air travels with the wind‚ affecting all of us‚ whether or not we are responsible for it. Smog aggravates heart and respiratory diseases. Acid rain erodes buildings‚ hurts
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structure. Larger amount of energy is needed to overcome the stronger electrostatic attraction between Rb+ and its mobile electrons than the weaker van der Waals’ forces between Kr atoms . Hence‚ boiling point of Rb is higher than that of Kr. b) AlF3 and PF3 AlF3 has a giant ionic structure and PF3 has a simple molecular/ covalent structure. Larger amount of energy is needed to overcome the stronger electrostatic attraction between Al3+ and F( ions in AlF3 than the weaker intermolecular
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electric charge * Static charge – electric charge at rest‚ stays on and eventually discharged or lost to other objects/air * Discharge – remove excess static charge so the object is neutral * Static charge last long when air is dry * Electrostatics – study of static electric charge * Benjamin Franklin demonstrated lightning is a form of electricity by flying a kite during a thunderstorm * Kite made out of silk and had pointed wire tip 30cm to draw “electric fire” * Flew
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Contents A. INTRODUCTION 2 Green Building 2 About Air & Odor Management (AOM) 2 1. AIR CLEANING AND PURIFYING 3 1.1. Air purifier 3 1.2. Fresh air system 3 1.3. Ceiling mounted electronic air cleaner 3 1.4. KITCHEN EXHAUST ELECTROSTATIC AIR CLEANER 4 2. ODOUR CONTROL 5 Examples: 5 Portable odour buster: Air Mist System Model provides a rugged portable solution to eliminate unwanted odours. 5 Mist spray unit: for odour control 5 Ecolo air solution: air solution
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with the N-alkyl chain. The compounds with alkyl chain in length (12-14) of carbon atoms possess antibacterial activity while alkyl chain in length containing 14-16 carbon atoms give better efficacy against bacteria[52]. It also depends on the electrostatic reactions where the polymer carries a positive charge and the cell wall carries a negative charge and thus generates a hydrophobic tail in the alkyl chain that extends to the nucleus of the bacterial cell where it destroys proteins and bacterial
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1‚ radiation processing method The main advantage of the thorium content of the different rare earth minerals and gangue minerals in the ore‚ the use of the gamma-ray concentrator to separate rare earth minerals and gangue mineral. The radiation processing method used for the preselection of the rare earth ore. At present‚ this method is not widely applied in industry. 2‚ the gravity separation method The use of different rare earth minerals and gangue mineral density separation. The re-election
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Bonding structure Metals: metallic bonding Ionic compound (metal +nonmetal): ionic bonding Molecule (nonmetal +nonmetal): covalent bonding 3.1 Metallic Bonding 1) Definition The electrostatic attraction between a lattice if positive ions and delocalized electrons. 2) The strength of metallic bonding (depend on) Delocalized electrons (=valence electrons=Group number) More valence electrons‚ stronger metallic bonding Ionic radii (=distance between nucleus and e-) Greater ionic radius
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colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid‚ liquid‚ or gaseous. Many familiar substances are colloids‚ as shown in the chart below. As well as these naturally occurring colloids‚ modern chemical process industries utilize high shear mixing technology to create novel colloids. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanometers.[2] Such
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