SINTERED MATERIALS WITH HIGH POROSITY
... and the functional characteristics of the porous sintered sheets: behaviour to mechanical stress, permeability and technological possibilities of processing. The sintered materials with high porosity can be mainly obtained from metallic and ceramic powders by free spreading methods followed by sinte ...
... and the functional characteristics of the porous sintered sheets: behaviour to mechanical stress, permeability and technological possibilities of processing. The sintered materials with high porosity can be mainly obtained from metallic and ceramic powders by free spreading methods followed by sinte ...
Acoustical properties of air-saturated porous material with
... resonances of the lateral dead-ends are also predicted at low frequencies, typically a few hundred hertz, much lower than the frequencies corresponding to the period. This constitutes the central originality of the present contribution. The deadend pores considered here are simple closed cavities. ...
... resonances of the lateral dead-ends are also predicted at low frequencies, typically a few hundred hertz, much lower than the frequencies corresponding to the period. This constitutes the central originality of the present contribution. The deadend pores considered here are simple closed cavities. ...
Post-print of: J. Mater. Chem. , 2012, 22, 1751
... Results and discussion Analysis of pore size and porosity The different degree of porosity extracted from the analysis of the specular reflectance spectra of the np-TiO2/PEG and np-SiO2/PEG layers in air is shown in Table 1. On the other hand, the change in the optical response of these porous laye ...
... Results and discussion Analysis of pore size and porosity The different degree of porosity extracted from the analysis of the specular reflectance spectra of the np-TiO2/PEG and np-SiO2/PEG layers in air is shown in Table 1. On the other hand, the change in the optical response of these porous laye ...
Dip Coating - University of New Mexico
... At first some general comments to the requirements of precursor solutions with regard to successful dip coating are presented in this section. A trivial but probably most important precondition is that the condensed phase remain dispersed in the fluid medium, that macroscopic gelation be avoided, an ...
... At first some general comments to the requirements of precursor solutions with regard to successful dip coating are presented in this section. A trivial but probably most important precondition is that the condensed phase remain dispersed in the fluid medium, that macroscopic gelation be avoided, an ...
Validation of Sterile Filtration of Liquid Nitrogen
... Although the production of sterile process fluids by sterile introduced immediately downstream of the test filters. The filfiltration using validated submicron membrane filters is not ters were challenged with B. diminuta in deionized water at usually problematic, LN2 presents a special condition. T ...
... Although the production of sterile process fluids by sterile introduced immediately downstream of the test filters. The filfiltration using validated submicron membrane filters is not ters were challenged with B. diminuta in deionized water at usually problematic, LN2 presents a special condition. T ...
Diffusion of large molecules in conifer bordered pits
... Bordered pits connect adjacent tracheid cells in softwoods and enable water transport between them. The pits are interruptions in the cell wall, consisting of a permeable margo with a centered impermeable torus and the cell wall overarching the margo and part of the torus. Knowledge of how large mol ...
... Bordered pits connect adjacent tracheid cells in softwoods and enable water transport between them. The pits are interruptions in the cell wall, consisting of a permeable margo with a centered impermeable torus and the cell wall overarching the margo and part of the torus. Knowledge of how large mol ...
Information on measuring ammonia in water
... For coolant monitoring, the plant operator is more concerned with the fast detection of an ammonia leak in the primary circuit via a qualitative ammonia detection in the secondary circuit. The measurement of the exact concentration in the secondary circuit is of minor importance, since the main obje ...
... For coolant monitoring, the plant operator is more concerned with the fast detection of an ammonia leak in the primary circuit via a qualitative ammonia detection in the secondary circuit. The measurement of the exact concentration in the secondary circuit is of minor importance, since the main obje ...
Microstructure and Characteristic of BiVO4 Prepared under
... of sunlight to degrade the organic pollutants. Researchers have used the precipitation, sol–gel and hydrothermal method to prepare BiVO4 [22–24]. Some factors limited the application of precipitation and sol–gel method due to raw material cost, and some extreme reaction condition [23]. The hydrother ...
... of sunlight to degrade the organic pollutants. Researchers have used the precipitation, sol–gel and hydrothermal method to prepare BiVO4 [22–24]. Some factors limited the application of precipitation and sol–gel method due to raw material cost, and some extreme reaction condition [23]. The hydrother ...
Environmental Technology 1
... If residence time is excessive (> 2hr) the risk in secondary clarifier is that denitrification takes place, generating N2 microbubbles which can float sludge flocs. What we obviously want to avoid is sludge loss into the receiving water body we actually wanted to protect in the first place. On site ...
... If residence time is excessive (> 2hr) the risk in secondary clarifier is that denitrification takes place, generating N2 microbubbles which can float sludge flocs. What we obviously want to avoid is sludge loss into the receiving water body we actually wanted to protect in the first place. On site ...
Recent developments in biological nutrient removal
... lower sludge ages and the solid-liquid separation can be made less sensitive to sludge concentration and settleability, then the BNRAS system can be significantly reduced in size (or capacity increased for an existing system). The developments in BNR technology over the past 30 years have all focuse ...
... lower sludge ages and the solid-liquid separation can be made less sensitive to sludge concentration and settleability, then the BNRAS system can be significantly reduced in size (or capacity increased for an existing system). The developments in BNR technology over the past 30 years have all focuse ...
Membrane bioreactor system for treating synthetic oilfield
... operated in atmospheric pressure. Oxygen is provided by air pump 6 and air diffuser inside the fermenter to maintain dissolved oxygen 2-3 mg/l. The bioreactor includes baffles to increase contacting wastewater with the microorganisms. Components of wastewater are mixed in a propylene container 14 wi ...
... operated in atmospheric pressure. Oxygen is provided by air pump 6 and air diffuser inside the fermenter to maintain dissolved oxygen 2-3 mg/l. The bioreactor includes baffles to increase contacting wastewater with the microorganisms. Components of wastewater are mixed in a propylene container 14 wi ...
Novel Methods and Materials in Development of Liquid Carrier
... For some innate reason I was focusing pharmaceutical industry only. I have to admit that at that time I already had a very ambitious wish to continue my education carrier within the frame of PhD studies in the industry. Therefore, I was looking for an advisor, who would take over the supervision of ...
... For some innate reason I was focusing pharmaceutical industry only. I have to admit that at that time I already had a very ambitious wish to continue my education carrier within the frame of PhD studies in the industry. Therefore, I was looking for an advisor, who would take over the supervision of ...
Study of Protein Facilitated Water and Nutrient Transport in Plant
... concentration results in high osmotic pressure at the source, while unloading of solutes will lead to low osmotic pressure at sinks [1]. This induced pressure gradient will then drive fluid flow through the sieve tube from sources to sinks without requiring an external pump. The protein facilitated ...
... concentration results in high osmotic pressure at the source, while unloading of solutes will lead to low osmotic pressure at sinks [1]. This induced pressure gradient will then drive fluid flow through the sieve tube from sources to sinks without requiring an external pump. The protein facilitated ...
Nutrient uptake by protocells: a liposome model system
... 1999). However, the use of lipid bilayers for this purpose has a significant drawback, which is their relative impermeability to polar or ionic molecules (Deamer et al., 1994; Mouritsen et al., 1995). To overcome this permeability barrier, complex protein transport systems have evolved in all contem ...
... 1999). However, the use of lipid bilayers for this purpose has a significant drawback, which is their relative impermeability to polar or ionic molecules (Deamer et al., 1994; Mouritsen et al., 1995). To overcome this permeability barrier, complex protein transport systems have evolved in all contem ...
Oxygen diffusion through perovskite membranes
... mol/cm2.s) should be linearly proportional to the pressure term (P1/P0)0.5-(P2/P0)0.5 if only the surface exchange is the limiting step of the oxygen transport. On the other hand, if the oxygen transport is only limited by the bulk diffusion through the membrane, the oxygen permeation flux is given ...
... mol/cm2.s) should be linearly proportional to the pressure term (P1/P0)0.5-(P2/P0)0.5 if only the surface exchange is the limiting step of the oxygen transport. On the other hand, if the oxygen transport is only limited by the bulk diffusion through the membrane, the oxygen permeation flux is given ...
Benefit and Necessity of Roof Design and Maintenance: Designing
... provided by roof material manufacturers expressly state that the building owner is required to complete maintenance of the roof system throughout its service life. The absence of proper maintenance may be grounds to negate warranty coverage. Read the fine print of the warranty and clarify with the m ...
... provided by roof material manufacturers expressly state that the building owner is required to complete maintenance of the roof system throughout its service life. The absence of proper maintenance may be grounds to negate warranty coverage. Read the fine print of the warranty and clarify with the m ...
Dialysis Guide_scienova
... brane, or length of diffusion pathway, as well as temperature. Some manufacturers, like scienova,™ depict protocols for frequently used substances in their technical data sheets. These can be use ...
... brane, or length of diffusion pathway, as well as temperature. Some manufacturers, like scienova,™ depict protocols for frequently used substances in their technical data sheets. These can be use ...
Condensation Risk of Mechanically Attached Roof System in Cold
... Flat roofs generally have a high potential of nightly overcooling and, therefore, an increased risk of condensation within the construction, particularly in cold-climate zones, depending on their specific assembly. A white exterior surface or so-called “cool roof,” applied to decrease cooling loads ...
... Flat roofs generally have a high potential of nightly overcooling and, therefore, an increased risk of condensation within the construction, particularly in cold-climate zones, depending on their specific assembly. A white exterior surface or so-called “cool roof,” applied to decrease cooling loads ...
ION SELECTIVE ELECTRODES
... ionic product the which can itself be detected by a known ion selective electrode. • A typical example is the urea electrode in which the enzyme urease is employed to hydrolyse urea and the progress of the ...
... ionic product the which can itself be detected by a known ion selective electrode. • A typical example is the urea electrode in which the enzyme urease is employed to hydrolyse urea and the progress of the ...
Total Dissolved Gas Pressure (TDGP)
... An increasing number of routine laboratory analyses and procedures require the use of gas-free distilled water with a reproducible level of TDGP (1). This proceeds from the need to avoid bubble formation when the water is heated or subjected to lowstrength ultrasonic fields. The use of a simple oxyg ...
... An increasing number of routine laboratory analyses and procedures require the use of gas-free distilled water with a reproducible level of TDGP (1). This proceeds from the need to avoid bubble formation when the water is heated or subjected to lowstrength ultrasonic fields. The use of a simple oxyg ...
contents 2002 MAY
... Cr(VI) have been removed by employing the present chelating polymers. Metal ion uptake efficiency, effect of pH and time on the metal removal have also been studied. The metal removal properties are also tested under competitive conditions and found to depend strongly on pH. The polymers possess app ...
... Cr(VI) have been removed by employing the present chelating polymers. Metal ion uptake efficiency, effect of pH and time on the metal removal have also been studied. The metal removal properties are also tested under competitive conditions and found to depend strongly on pH. The polymers possess app ...
unit operations in food processing - University of Agriculture Abeokuta
... does not occur. The super cooling provides the means of determining the in depth effect of a reduction in temperature relative to the initial freezing point. • Crystallization: is the formation of a systematically organized solid phase from a solution or vapour. Crystallization consists of nucleatio ...
... does not occur. The super cooling provides the means of determining the in depth effect of a reduction in temperature relative to the initial freezing point. • Crystallization: is the formation of a systematically organized solid phase from a solution or vapour. Crystallization consists of nucleatio ...