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unit operations in food processing - University of Agriculture Abeokuta
unit operations in food processing - University of Agriculture Abeokuta

... MECHANICAL SEPARATION • Mechanical separations can be divided into four groups sedimentation, centrifugal separation, filtration and sieving. • In sedimentation, two immiscible liquids, or a liquid and a solid, differing in density, are separated by allowing them to come to equilibrium under the act ...
single dna molecule detection by on-bead rolling circle amplification
single dna molecule detection by on-bead rolling circle amplification

... per one bead could be detected (n=3), corresponding to a detection ratio of ~1% (Table 2). With 3,000 polystyrene beads in a PCR tube, 250 countable RCA products per one bead could be detected (n=3), corresponding to a detection rate of ~0.04%. Polystyrene bead showed lower detection rate because am ...
PDF
PDF

... massive planetary body could provide better flow rates because of an increase in gravity differentials, but this may be, at times, an impractical solution. Using smaller molecules and less viscous solutions in practical applications could also allow for speedier mixing. Several methods of artificial ...
Visual Testing
Visual Testing

... Visual Testing Visual testing is the most basic and common inspection method involves in using of human eyes to look for defects. But now it is done by the use special tools such as video scopes, magnifying glasses, mirrors, or borescopes to gain access and more closely inspect the subject area. Vi ...
NON-DESTRUCTIVE TESTING
NON-DESTRUCTIVE TESTING

...  When used in conjunction with NDT it is essentially applied at every stage involving human eye e.g. reading measuring instrument screens.  This forms the simplest form of investigation used as there are no sophisticated and costly instruments used. ...
Industrial pharmacy and pharmaceutical technology
Industrial pharmacy and pharmaceutical technology

... Suggested questions in industrial pharmacy/Randa Mansour 1. A powder population in which the mode, mean and median particle size are equal is said to be: a. Monosized. b. Normally distributed. c. Positively skewed. d. Negatively skewed. 2. Concerning the fracture behavior of powders, choose the corr ...
THE CREATION OF EXPLOSIVE CONTAMINATION STANDARDS:
THE CREATION OF EXPLOSIVE CONTAMINATION STANDARDS:

... • Surface interaction and vehicle properties are critical for particle size, adhesion, distribution, deposition homogeneity and reproducibility. • Surface concentration, vapor pressure have an impact on particle morphology and sample stability. Path forward o Deposition reproducibility and efficienc ...
Dimples due to dislocations at the superfluid/solid interface of
Dimples due to dislocations at the superfluid/solid interface of

... to that used in the experiments described in Ref. 2) built into a small dilution refrigerator, capable of achieving temperatures down to 40 mK. Our cell is a copper cylinder of 40 mm in diameter, capped from both ends by fused silica windows. The lower window is an optical wedge of high quality; the ...
Surface and colloidal chemistry
Surface and colloidal chemistry

... • Surface tension of a liquid is highly depend on the solutes/ impurities dissolved in the liquid. • Therefore γ depends upon what substances (molecules) are at or near the surface of that liquid. • Since the "surface" is a boundary of a very thin thickness, surface tension is a sensitive function o ...
Channel Design Design of Channels
Channel Design Design of Channels

... • The area needed to excavate the best hydraulic section might be larger than the area required to achieve the flow area • It may not be possible to construct a stable best hydraulic section in the natural material • The cost of excavation depends on other things than the amount of material removed ...
Derived properties of powders (Cont.)
Derived properties of powders (Cont.)

... 3- Bulkiness = Specific bulk volume = reciprocal of bulk density: It is an important consideration in the packaging of powders. The bulk density of calcium carbonate vary from 0.1 to 1.3, and the lightest (bulkiest) type require a container about 13 times larger than that needed for the heaviest var ...
Engineering Formula Sheet
Engineering Formula Sheet

... x = Number of times an outcome occurs within n trials n = Number of trials p = Probability of success on a single trial q = Probability of failure on a single trial ! means multiply all of the numbers 1 to x Ex. 5! = 5 x 4 x 3 x 2 x 1 ...
Elastic liquids - damtp - University of Cambridge
Elastic liquids - damtp - University of Cambridge

... Something between liquids and solids, but . . . More complicated than simple viscous fluids, ...
Escherichia Coli to Swim Upstream Jane Hill, Ozge Kalkanci,
Escherichia Coli to Swim Upstream Jane Hill, Ozge Kalkanci,

... Bacterial body angles were measured at the top and bottom surfaces of the channel along the central strip (to reduce spatial variation) for various flow rates in several channel geometries [Fig. 3(a)]. We observed that, for a given volumetric flow rate, bacteria were more perpendicular to flow as th ...
Surface Tension in Pharmaceutical Dosage Forms
Surface Tension in Pharmaceutical Dosage Forms

... If the radius of the capillary is known, the surface tension can be calculated from the pressure maximum (4). In order to meet challenges and develop new and better performing pharmaceutical products, knowledge of surface tension is of utmost importance. Applications of surface tension in pharmaceut ...
Phenomena at curved surfaces
Phenomena at curved surfaces

... Molecules at surface vs. in the bulk ...
Chapter 8 Those incredible water molecules Water is the most
Chapter 8 Those incredible water molecules Water is the most

... Why? Surface tension (表面张力) Surface tension ( 表 面 张 力 ): The tendency of the molecules on the surface of a liquid to go into the liquid. The surface tension also accounts for the spherical shape of liquid drops, especially in the weightless environment. ...
08. Physical-chemical essence of surface phenomenon
08. Physical-chemical essence of surface phenomenon

... to break film and is defined as the force in dynes acting upon а line one cm long on the surface of the liquid. Surface tension is typically measured in dynes/cm, the force in dynes required to break a film of length 1 cm. Equivalently, it can be stated as surface energy in ergs per square centimete ...
04. Physical-chemical essence of surface phenomenon
04. Physical-chemical essence of surface phenomenon

... to break film and is defined as the force in dynes acting upon а line one cm long on the surface of the liquid. Surface tension is typically measured in dynes/cm, the force in dynes required to break a film of length 1 cm. Equivalently, it can be stated as surface energy in ergs per square centimete ...
Abstract-Sumer PEKER - ic-rmm1
Abstract-Sumer PEKER - ic-rmm1

... High internal phase ratio emulsions (HIPRE) have structured continuous phases that cause these emulsions to exhibit different rheological behavior under different flow conditions. The continuous phase is usually a polymer or a surfactant in solution. Surfactants with a linear hydrophobic chain and a ...
Nanosystems Engineering on Microfluidic Platform: Potential
Nanosystems Engineering on Microfluidic Platform: Potential

...  In DF imaging, single gold nanoparticle can be imaged at very low concentration of GNP-EGFR peptide treatment.  Significant contrast of peptide conjugated gold nanoparticles provides new opportunities for targeted delivery and ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 Part A Answer all questions:
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 Part A Answer all questions:

... 9. State the postulates of special theory of relativity. 10.A rod of 1m long is moving along its length with a velocity 0.8c. Calculate its length as it appears to an observer on earth. Part B Answer any four questions: ...
Packed Bed Reactors - EngineeringDuniya.com
Packed Bed Reactors - EngineeringDuniya.com

... catalyst beads of appropriate size and density • Basis: Bed expands at high liquid flow rates due to upward motion of the particles. • Particles in fluidised beds are in constant motion – Channelling and clogging of the bed are avoided – Air can be introduced directly into the column. ...
Cartridge Filter is designed for high viscosity liquid filtration, by
Cartridge Filter is designed for high viscosity liquid filtration, by

... ① This Cartridge has the high compressive strength against the viscous liquids, because of the structure of only molded layer. Also, it achieves the bigger filtration flow. ②All Cartridge products are rinsed up, so the no flow out of oils, and no foaming. ③Thickness of the fibers is uniformed, and t ...
Interfacial Forces in Active Nanodevices
Interfacial Forces in Active Nanodevices

... of charges and the associated voltage increase. The charge remains highly localized at the surface of the insulator. The Young-Lippmann equation describes the changes in q in these nanoscale drops. As in macroscopic experiments, there is a saturation at large voltages. Increasing the chain length in ...
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Centrifugal micro-fluidic biochip

The centrifugal mico-fluidic biochip or centrifugal micro-fluidic biodisk is a type of lab-on-a-chip technology that can be used to integrate processes such as separating, mixing, reaction and detecting molecules of nano-size in a single piece of platform, including a compact disk or DVD. This type of micro-fluidic biochip is based upon the principle of microfluidics; to take advantage of noninertial pumping for lab-on-a-chip devices using noninertial valves and switches under centrifugal force and Coriolis effect to distribute fluids about the disks.This biodisk is an integration of multiple technologies in different areas. The designer must be familiar with the process of biology testing before designing the detailed micro-structures in the compact disk. Some basic element components such as valves, mixing units, and separating units should all be used to complete the full testing process. The most basic principles applied in such micro-fluidic structures are centrifugal force, coriolis effect, and surface tension. The micromachining techniques, including patterning, photolithography, and etching should all be used as long as the design is verified. Once the testing process is successful in the biodisk, the complex detection technique is started. There are many methods proposed by scientists in this area. The most popular method is immunoassay which is widely use in the testing of biology. The final step is receiving data from the biodisk by means of a CD drive and modifying either software or hardware that can achieve this function. A popular method is reading data from the biodisk using a common CD drive with some developed software, which contains the advantage of being low on cost.Once the centrifugal micro-fluidic biochip is developed well enough to be manufactured on a large scale, it will cause a wide effect on the industry as well as medical care, especially in developing countries, where high-precision equipment is not available. People in developed countries who are willing to do such regular home-care detections can also benefit from this new technology.
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