نتایج جستجو برای: pores morphology
تعداد نتایج: 158719 فیلتر نتایج به سال:
In anticipation that improved knowledge of euglenid morphology will provide robust apomorphy-based definitions for clades, transmission and scanning electron microscopy were used to reveal novel morphological patterns associated with the euglenid pellicle. In some taxa, the number of pellicle strips around the cell periphery reduces as discrete whorls at the anterior and posterior ends of the c...
Lingual papillae of wild boar and pig were studied by means of scanning electron microscopy (SEM). Vallate papillae appear with the typical circumvallate morphology. Their papillary bodies show conical or fungiform-like and spicule-like pseudopapillae in both animals. Taste pores were seen in the papillary grooves. Microplicae or pits are visible at high magnification. In pig and wild boar simi...
The use of chitosan and rice starch as the bio-based coated paper has resulted in a positive effect on physical, mechanical, optical properties. research was to show influence ultrasonic treatment properties paper. kraft with coating solution determined for thickness, tensile strength, surface morphology analysis. sample prepared two types which are uncoated coatings been applied by spray techn...
In the die-casting process, the formation of pores in components is unavoidable. This porosity has a harmful effect on the strength and pressure tightness of die castings. To eliminate the porosity in components, its predominant cause has to be identified as being due to either shrinkage or gas. In practice, however, it is frequently difficult to tell the difference between porosity due to shri...
Pollen morphology of 20 species belonging to the 14 genera of the family Gramineae has been investigated using light microscope and scanning microscope. It is a stenopalynous in nature. Pollen grains mostly spheroidal, monoporate rarely diporate, ±circular, pores small operculate, non-operculate, annulate or non-annulate. Tectum areolate to scabrate. On the basis of exine ornamentations 5 disti...
In this study, thin films of mesoporous silica with vertically oriented and hexagonally ordered pores have been synthetized investigated. A variety alkyl-imidazolium ionic liquids used as the template, aim to understand how changing chain length on imidazolium cation from hexadecyl (C16) dodecyl (C12) or protic character head affects film formation order pores. addition, different types metal s...
The pollen morphology of Pelargonium endlicherianum Fenzl. and Pelargonium quercetorum Agnew. from the family Geraniaceae was examined under light microscopy and scanning electron microscopy. Pollen morphologies are eurypalynous. The pollen grains were tricolporate, prolate-spheroidal and large. Aperture was ectoaperture, colpus was short, and the pores were oblate-spheroidal and large. The exi...
Laser-MIG hybrid welding of 6061-T6 aluminum alloy was carried out with ER4043 wire, and the microstructure fatigue properties joint were studied. The grain size HAZ is larger than that base metal (BM) due to influence heat cycle. Snowflake-like equiaxed grains found in upper, middle, lower parts welded (WJ). Based on test 1 × 106 cycles, ultimate strength BM WJ 101.9 MPa 54.4 MPa, respectively...
In this paper, a series of mesoporous anatase TiO2 crystals were prepared through a hydrothermal method. By using different carboxylic acids as solvents and additives, the morphology of the integral crystals as well as inner pores can be tuned by the chain length of the carboxylic acids. Further application of these anatase TiO2 crystals as the photoanode of DSCs resulted in an overall energy c...
Guide regeneration techniques have been recently used to heal soft and hard tissue defects. In this approach, scaffolding plays an important role. Hydroxypatite (HA) resembles the natural bone mineral and has shown good bone bonding properties. In this work, porous polyurethanes have been prepared by a thermally induced phase separation technique. Freeze drying of the separated polymer/solvent ...
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