The significant characteristics of the electromagnetic environment in an ideal reverberation chamber are uniformity, isotropy and random polarization. Stirrer performance in a reverberation chamber is crucial to these characteristics. In this paper, based on the statistical theory, the uncertainty due to the number of independent samples is given. The key mechanism that causes the fields in a r...

Microbial cells were disintegrated in a new type of rotary disintegrator with a disc stirrer by a combination of shear force layers, collisions, and rolling of glass beads which were brought into motion by the stirrer. The rate of disintegration at a given dry bed volume of Ballotini beads and a given volume of cell suspension is proportional to the peripheral velocity of the stirrer up to 18 m...

Reverberation chambers are widely used in electromagnetic compatibility test facilities because they provide a large working volume and are cheaper than other types of test facilities. In addition, they provide a statistically uniform field and generate a high maximum electric field within a relatively large volume. The volume of the cavity, the structure of the stirrer, and high tested frequen...

A cerebral thrombus or blood clot might cause cerebral stroke and even decease if the clot could not be dissolved within several hours after it was formed. This paper presents a fundamental study on development of a new type of mechanical micro stirrer for assisting the dissolution of the thrombus with a few amount of thrombolytic agent. The micro stirrer is made of a slight beam embedded with ...

The effect of the geometrical parameter of blades on heat transfer co-efficient were experimentally studied for agitated vessels using coal slurry in coal gasification. The intensity of hear transfer during mixing of fluids depends on the type of the stirrer, the design of the vessel and conditions of the process. The type and size of the stirrer, as well as its location in the vessel, also aff...

High-shear stimulation is well known as one of the key factors affecting platelet activation and aggregation, which can lead to the formation of a thrombus. In one of our previous studies, we introduced migration distance-based platelet function analysis in a microfluidic system. In this study, we set out to examine the effects of stirring on shear-induced platelet activation and aggregation in...

Numerous studies are nowadays undertaken across the world laboratories on turmeric and show its excellent virtues in various fields such as medicine, pharmacology, cosmetics, so forth. In this paper, to enlarge domain of scientific knowledge, a kinetic thermodynamic behavior curcuminoid extraction from Curcuma longa L has been investigated dilute medium using ethanol solvent under magnetic stir...

We report on the confinement of a Bose-Einstein condensate in an annular trap with widely tunable parameters. The relies combination magnetic, optical and radio-frequency fields. loading procedure is discussed. present traps radii adjusted between 20 150 micrometers. demonstrate preparation persistent flows both rotating laser stirrer global quadrupole deformation ring.Our setup well adapted fo...

Deposits of barium sulfate are a common issue in the oil and gas industry. The presence these crystals impacts production, causing technical problems such as inhibiting flow rate, increasing pressure pipe, pipe to break be damaged. results this study show formation (BaSO4) with batch crystallizer method at 300 °C under influence stirring rotation speed (0 rpm, 120 240 360 480 rpm) additive conc...