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Hamo Ahmed
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Wednesday 03 June 2026 22:34:44 GMT
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Osama Mokhtar :
عاش احر 🥰🔥🔥
2026-06-03 22:59:19
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Osama Mokhtar :
ايوا كدا😂♥️
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الحرفوش☝🏼
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Messing some more aroung with the mixed media style,so fun #jinx #arcane #mixedmedia #fyp #viral When is powder characterization needed? A deep understanding of powder properties is crucial in several industries. Examples of applications include:     Ensuring consistent drug formulation, optimal dissolution rates, and dosage uniformity in the pharmaceutical industry      Achieving the desired texture, flavor release, and stability in food and beverage production     Optimizing consistency, texture, stability, adhesion, and application properties in the cosmetics industry     Improving grinding and milling processes in mining and minerals     Optimizing strength, porosity, and sintering behavior of ceramics and construction materials     Determining whether powdered food, feed, or cosmetics contain nanoparticles to assess the need for a nano-specific risk assessment according to EFSA guidelines or European Commission recommendations     Confirming that liposome powders contain particles with the characteristic round, bilayer structure.     Controlling nanoparticle properties in nanotechnology applications     Determining whether fine powders have the potential to combust or explode, necessitating special handling and transportation procedures to minimize risks     Assessing workplace safety hazards related to dustiness (i.e., generation of inhalable and respirable dust particles during handling) Key powder properties and characterization techniques A combination of several analysis techniques is generally required to obtain all the necessary information about the behavior of powdered materials. Some of the most crucial properties and the methods used to analyze them are outlined below. Particle size distribution Measured using techniques like laser diffraction and dynamic light scattering, the particle size distribution of powders is generally reported as a histogram showing the proportion of particles belonging to different size ranges. For the characterization of non-spherical particles, optical or electron microscopy techniques can be utilized. Particle morphology Referring to the combination of shape, structure, and surface characteristics, morphology can be analyzed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and optical microscopy. The most suitable method is chosen based on particle size, with TEM providing nanoscale (<50 nm) resolution, SEM being optimal for particles up to 200 µm, and optical microscopy being suitable for particles measuring at least 10 µm. Porosity The porosity of a powder refers to the ratio of empty volume between and within particles (interparticle and intraparticle voids, respectively) with respect to the bulk volume of the material. Porosity can be estimated using several analytical methods, including gas adsorption, micro-computed tomography (micro-CT), and electron microscopy. Pore size distribution and cumulative pore volume analyses require a significant number of calculations and iterations. The most common theories are the BJH (Barrett, Joyner, Halenda) method, DFT (density functional theory), and the GCMC (grand canonical Monte Carlo) method. Specific surface area Defined as the total surface area per unit of mass, the specific surface area (SSA) of a powder affects many of its properties, such as adsorption capacity and reactivity. SSA is most often characterized using gas adsorption and the BET (Brunauer, Emmett, Teller) method. Usually, nitrogen is used as the adsorbing gas but krypton, argon, and carbon dioxide can also be used depending on the nature of the material. A combination of gas adsorption and gas pycnometry can be used to determine the volume-specific surface area (VSSA). This can help identify nanomaterials, which have a high VSSA in comparison to conventional materials. Powder flowability Defined as the relative movement of the bulk of particles among neighboring particles or the wall of the container, powder flowab
Messing some more aroung with the mixed media style,so fun #jinx #arcane #mixedmedia #fyp #viral When is powder characterization needed? A deep understanding of powder properties is crucial in several industries. Examples of applications include: Ensuring consistent drug formulation, optimal dissolution rates, and dosage uniformity in the pharmaceutical industry Achieving the desired texture, flavor release, and stability in food and beverage production Optimizing consistency, texture, stability, adhesion, and application properties in the cosmetics industry Improving grinding and milling processes in mining and minerals Optimizing strength, porosity, and sintering behavior of ceramics and construction materials Determining whether powdered food, feed, or cosmetics contain nanoparticles to assess the need for a nano-specific risk assessment according to EFSA guidelines or European Commission recommendations Confirming that liposome powders contain particles with the characteristic round, bilayer structure. Controlling nanoparticle properties in nanotechnology applications Determining whether fine powders have the potential to combust or explode, necessitating special handling and transportation procedures to minimize risks Assessing workplace safety hazards related to dustiness (i.e., generation of inhalable and respirable dust particles during handling) Key powder properties and characterization techniques A combination of several analysis techniques is generally required to obtain all the necessary information about the behavior of powdered materials. Some of the most crucial properties and the methods used to analyze them are outlined below. Particle size distribution Measured using techniques like laser diffraction and dynamic light scattering, the particle size distribution of powders is generally reported as a histogram showing the proportion of particles belonging to different size ranges. For the characterization of non-spherical particles, optical or electron microscopy techniques can be utilized. Particle morphology Referring to the combination of shape, structure, and surface characteristics, morphology can be analyzed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and optical microscopy. The most suitable method is chosen based on particle size, with TEM providing nanoscale (<50 nm) resolution, SEM being optimal for particles up to 200 µm, and optical microscopy being suitable for particles measuring at least 10 µm. Porosity The porosity of a powder refers to the ratio of empty volume between and within particles (interparticle and intraparticle voids, respectively) with respect to the bulk volume of the material. Porosity can be estimated using several analytical methods, including gas adsorption, micro-computed tomography (micro-CT), and electron microscopy. Pore size distribution and cumulative pore volume analyses require a significant number of calculations and iterations. The most common theories are the BJH (Barrett, Joyner, Halenda) method, DFT (density functional theory), and the GCMC (grand canonical Monte Carlo) method. Specific surface area Defined as the total surface area per unit of mass, the specific surface area (SSA) of a powder affects many of its properties, such as adsorption capacity and reactivity. SSA is most often characterized using gas adsorption and the BET (Brunauer, Emmett, Teller) method. Usually, nitrogen is used as the adsorbing gas but krypton, argon, and carbon dioxide can also be used depending on the nature of the material. A combination of gas adsorption and gas pycnometry can be used to determine the volume-specific surface area (VSSA). This can help identify nanomaterials, which have a high VSSA in comparison to conventional materials. Powder flowability Defined as the relative movement of the bulk of particles among neighboring particles or the wall of the container, powder flowab

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