Mixing of pharmaceutical powders
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This study examined the mixing of salicylic acid and wheat starch powders using a V-type mixer. The researchers investigated the optimum operating conditions of the mixer and how mixing characteristics were affected by dilution ratio, particle size of the active ingredient, and addition of lubricants. They found that the coefficient of variation followed a power law related to dilution ratio and particle size, and that mixing cohesive pharmaceutical powders is a complex stochastic process not fully explained by simple random mixing theories.
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https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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Mixing of pharmaceutical powders
- 1. Studies on mixing of pharmaceutical powders Abstract The mixing of salicylic acid and wheat starch powders was studied using a V-type mixer. After the optimum operating conditions of the mixer were examined, the mixing characteristics relating to dilution ratio, particle size of active ingredient and addition ratio of lubricants were investigated. The coefficient of variation was expressed by a power law relating to the dilution ratio and the particle size of active ingredient. Furthermore, the comparison of results with the theoretically estimated values of mixing index suggested that the mixing of cohesive pharmaceutical powders is a complex stochastic process and cannot be explained fully by a simple theory based on a complete random mixing. Keywords Mixing-of multicomponent powders evaluation of homogeneity using a mixing index based on statistical analysis - Salicylic acid-powders mixed with wheat starch for homogeneity evaluation, Mixer-the optimum operating conditions of a V-type mixer - Lubricants—the effect of magnesium stearate and talc on the mixing