We propose a scheme for localizing an atom in a four-level configuration inside a classical standing wave field, conditioned upon the measurement of frequency of a weak probe field. In the classical standing wave field, the interaction between the atom and the field is position dependent due to the Rabi-frequency of the driving field. Hence, as the absorption frequency of the probe field is mea...

A new hybrid-model for BCI probe is derived . This model is built based on the probe's internal structure without refinements, and by carrying out just one electrical measurement for the reflection coefficient, so that it can be generalized and used in studying the effect of layout parameters in the aim of improving the probe high frequency performance, which helps the developer in design stage...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

non-destructive ultrasonic testing is one of the methods utilized to evaluate quality of agricultural produce. transducers used in this method are made for basically industrial applications. since ultrasonic attenuation of waves in agricultural produce is very high, industrial transducers cannot be used in agriculture and needs to be modified. this is done with horns that concentrate energy on ...

Multi-needle Langmuir probes are mounted on satellites and sounding rockets for high-frequency characterization of plasma in the ionosphere. Mounted a spacecraft, recorded probe current often differs from expected results. In this paper, we perform numerical study using particle cell model to see how spacing between individual used multi-needle setup influences measured current. We also applied...

The work aims to prepare and characterize polyester nanoclay nanocomposite (PNNCs) with various weight percentages (0, 2, 4). Nanoclay resin are blended using a mechanical stirrer followed by sonicator. blend is molded as specimens per ASTM standards. addition of improved tensile strength 12% 16% flexural 4% 10%. After 60 days soaking in, the retention rate pure PE, 2PNNC, 4PNNC 84.9%, 89.8%, 9...

The core objective of this analysis is to implement a combination alkaline (NaOH) and sonication pretreatment techniques produce energy-efficient biohydrogen from the marine macroalgae Chaetomorpha antennina. Anaerobic fermentation was implemented in control, sonic solubilization (SS) alkali (SAS) for 15 days. In production 40 mL H2/gCOD obtained. sonicator intensities varied 10% 90% period 1 h...