Bulk density

The marketing mix is about putting the right product in the right place, at the right time, and at the right price. The marketing mix is the set of activities, that a company uses to promote its brand or product in the market. All the elements of the marketing mix influence with each other. They lead the company for success. The marketing mix is called as 4Ps and the 7Ps. The 4Ps are for the product market which includes price, place, product and promotion. The services marketing mix is also…

More than two out of every three adults in America are either overweight or obese (“Overweight and Obesity Statistics”). America has a reputation around the world for having citizens who are overweight and lazy. This lazy and unhealthy trend in an individual originates when he or she is a child; when one is growing up, he or she is told that strength training is dangerous and can stunt one’s growth. Therefore, as child, one drifts away from the idea of weight training, and unless one…

Call it what you will. An artificial forest. A hide-and-seek campground. A scientific laboratory. Maybe even Owens Valley Long Wavelength Array. Exciting discoveries are taking place here in Owens Valley. A large array of radio telescopes, designed in the shape of trees, lay scattered across the desert floor, making it look just like a dry forest, artificially. Of course, it would be nice to play a game of hide-and-seek there, hiding between 288 distinct radio antennas under the warm sun.…

Intermolecular Forces Intermolecular forces are the result of attractive or repulsive forces between atoms, molecules or ions, primarily as a result of electrostatic attractions; these forces act between discrete molecules. Intermolecular forces are weak forces but without them life as we know it would not be possible: water vapor would not condense into its liquid (or solid forms) if its molecules did not attract each other, and all matter, in fact, would exist as gases. The physical states…

Stray current corrosion: Stray current is the current which occurs when conductors are placed between high magnetic or electric fields. Presence of stray currents over the PCB surface can generate corrosion problems. The below figure 5 shows severe corrosion damage to micro wave module for 24 GHz. This equipment is built in controlled conditions where water condensation is possible. After few hours of use, severe corrosion was seen on the surface. Figure 5. Stray current corrosion of a micro…

sulfonation,122,137,138 benzoylation,139 and carboxylation.138 The modification of polyphenylene oxide (PPO) as an example is discussed. The substitution of PPO by either nitro or amino group resulted in increased chain stiffness, increased packing density, and lower thermal stability than unsubstituted PPO.135 Bromination of PPO at the aryl positions had been extensively studied.136,140,141,142 Studies have shown that brominated PPO (PPOBr) has high molecular weight.142 Bromination of PPO…

Kanamycin sulphate and rifampicin were purchased from Hangzhou Dayangchem Co., Ltd., Zhejiang, China. Acetonitrile and ethanol (High performance liquid chromatography, HPLC, grade) were purchased from Merck, Germany. Sodium dihydrogen phosphate, phenylisocyanate, triethylamine, orthophosphoric acid (analytical reagent grade) and silicone oil (viscosity 10 cSt) were purchased from Sigma–Aldrich, St. Louis, USA. Size 3 hard gelatin capsules were kindly donated by Capsugel Co., Ltd., Tokyo, Japan.…

pressure melting, creates a thin layer of liquid water. This is explained as a skater’s weight exerting a great deal of pressure per square inch of ice that causes ice to drop its melting point. Furthermore, ice is less dense than water, this lower density of the ice means that the melting point of ice can be lowered below the normal zero degrees Celsius by squeezing it. Increasing the pressure also reduces the volume available; Le Chatelier’s Principle, states if a system in equilibrium is…

pressures near the droplet surface and far from the droplet respectively. Ta and Tcc are the temperatures at the microdroplet surface and the reservoir. D is the diffusion constant of vapor in the ambient gas. M and are the molecular weight and density respectively. R is the universal gas constant. The vapor pressure at the surface of the droplet is given by [2,3] : Where is the volume equivalent dry radius or the effective surface volume concentration, is the…

by-products.2, 3 However, experimental studies using HT-PEMFCs show that degradation of the cell can occur after certain hours of operation (around 500 hours).4 Some of the factors that contribute to the degradation of the HT-PEMFCs are rupture of the bulk polymer backbone of the membrane, H3PO4 loss and poisoning of the catalyst layer.5 These degradation problems must be overcome in order to commercialize this type of fuel cells.5 Consequently, extensive…