In many cases, the hydrocyclone control is desirable for efficient separation especially in case of changing feed conditions. Control concept based on exact mathematical models is not satisfactory due to the complexity of the physical process. In this case, fuzzy control is a suitable solution. The data are primarily derived from an optical sensor that monitors the outside view of the free unde...

Although fuel spray parameters, such as cone angle and penetration length, are crucial for developing high-efficiency high-performance combustion engines, general models predicting transient characteristics of these parameters have not been suggested. In this study, the cyclopentane at sub- transcritical conditions relevant IC engine rocket injections were experimentally evaluated. A single sim...

This study evaluated the effect of surface roughness and tapered angle of cone crowns on retentive force (RF). Cone crowns from Ti-6Al-7Nb alloy with a tapered angle of 4, 5, or 6° were fabricated using a milling machine and a finishing machine to produce a smooth surface. Cone crowns of 6° with a rough surface were also prepared. The RF during 1,000 cycles of insertion/separation was recorded....

The concept of antipodality relative to a closed convex cone K ⊂ Rd has been explored in detail in a recent work of ours. The antipodality problem consists of finding a pair of unit vectors in K achieving the maximal angle of the cone. Our attention now is focused not just in the maximal angle, but in the angular spectrum of the cone. By definition, the angular spectrum of a cone is the set of ...

The electrospray ionization (ESI) method is widely used in the analysis of biological molecules. The stable cone regime spray is usually obtained by the addition to the electrosprayed dipolar fluid of methanol or ethanol with the role of reducing the fluid surface tension. We investigate the spray onset voltages of water-ethanol mixtures of various concentrations starting from distilled water t...

Bay laurel is an evergreen, commercially grown and expensive ornamental pot plant, which is susceptible to different pests like aphids, scale and lerp insects, thrips, caterpillars of codling moth and sooty moulds. Recently, caterpillars of the Mediterranean carnation leafroller (Cacoecimorpha pronubana) cause more and more problems. These pests can lead to important financial losses for the gr...

To meet the requirements of trellis grape crop root irrigation, spraying pesticides on branches and leaves, an integrated sprinkler was designed, which relies flow pressure to change irrigation water spray pesticide working modes. The structural parameters that affect hydraulic performance were selected based principle sprinkler. key for mode included diversion hole inclination angle, refractiv...