1 kHz
Study the effect of Mn 2+ ions on the ac electrical properties of some iron doped phosphate glasses
... measures directly the phase difference due to loss of energy within a sample at a particular frequency. The observed dielectric loss (tan δ) may be due to two main contributions, a part which is thermal-activated ...
6
Hearing in the crepuscular owl butterfly (Caligo eurilochus, Nymphalidae)
... to 1-6 kHz ...to 1 kHz, then fell to zero at 2.3 kHz, corresponding to the mean peak of the displacement gain ...5 kHz, while in response to frequencies above 5 kHz, it ...
18
Design, construction and characterisation of a novel nanovibrational bioreactor and cultureware for osteogenesis
... The bioreactor system described in this article works well on the scale of a research project, or small clinical trial, that requires mechanical stimulation with an amplitude of approximately 30 nm at a frequency of ...
12
Passive kHz lidar for the quantification of insect activity and dispersal
... Aside from the presented ranging method, other useful information regarding insect flight in relation to weather and topography can be extracted from quadrant detec- tors. Figure 10 shows the statistical distribution of ...
10
Dielectric Studies on Benzothiazole Based Liquid Crystals at Radio Frequency Region
... Abstract: The phase transition temperatures and textural changes in homologous series of 2-(4- n alkanoyloxy benzylidenamino) benzothiazoles (n BABTH), where n=12 and 16, were studied by using Polarising Optical ...
8
What determines the tuning of hearing organs and the frequency of calls? A comparative study in the katydid genus Neoconocephalus (Orthoptera, Tettigoniidae)
... 4 kHz to 80 kHz (1 kHz steps from 4 kHz to 10 kHz; 2 kHz steps from 10 kHz to 20 kHz; 5 kHz steps from 20 kHz to 50 kHz; 10 kHz ...
12
Accurate position tracking of optically trapped live cells
... Using a triple-spot trap to trap the cell as a whole gave the best all round result, reducing the error in k from 35% to 11% when compared to the single-spot trap and approaching an error of 5% in κ achieved when ...
12
Preparation and characterization of ZnO microcantilever for nanoactuation
... When an AC voltage signal with sine waveform was applied on the top and bottom electrodes of the ZnO microcantilever, the cantilever generated vibration according to piezoelectric effect. Then, the LDV can detect the ...
5
Design and Implementation of Speech Processing in Cochlear Implant
... (1 kHz-6 kHz), three filters, threshold detectors are used which helps to glow LEDs according to input sound ...of 1 kHz to 6 kHz, and is followed by bank of filters, threshold ...
6
Using AC Conductivity Measurements to Study the Influence of Mechanical Stress on the Strength of Geomaterials
... Pilot ac conductivity measurements in the frequency range 1 kHz - 1 MHz were conducted for type-1 and type-2 specimens without removing their natural mois- ture. Figure 4 shows the behaviour ...
5
An Active PWM Technique For A Transformer less H-Bridge Cascaded STATCOM With Wye Configuration
... as 1 kHz are phase shifted by 2π/12 from each ...as 1 kHz, using the method of phase-shifted unipolar sinusoidal PWM, it can make an equivalent carrier frequency as high as 24 ...
9
Dielectric Relaxation in Pure Columbite Phase of SrNb2O6 Ceramic Material: Impedance Analysis
... ( 1 KHz, 5 KHz, 10 KHz, 50 KHz, 100 KHz, and 1 MHz); the values of dielectric constant increases with increase in temperature and a peak evolves at around ...
12
Effect of Annealing Time on the Dielectric Properties of BaMn3Ti4O14 25 Pellets by Spark Plasma Sintering
... at 1 kHz, However, both of the decreased the electrically insulating sec- ondary phase with the increased annealing time and the Schottky barriers and associated space charge regions produced by the ...
8
Khz cp (crude polysaccharide extract obtained from the fusion of Ganoderma lucidum and Polyporus umbellatus mycelia) induces apoptosis by increasing intracellular calcium levels and activating P38 and NADPH oxidase dependent generation of reactive oxygen species in SNU 1 cells
... Cancer develops because of abnormal cellular prolifera- tion or defective apoptosis that leads to uncontrolled growth [1]. Therefore, new treatments that target the proliferation and apoptosis of cancer cells are ...
13
Passivity enforcement via residues perturbation for admittance representation of power system components
... 10 kHz. The nonpassive region, [11.498, 14.188] kHz, obtained by imaginary eigenvalues of the Hamiltonian matrix and the proposed method of related slopes is shown in ...
16
Army recruits of Indian origin: early detection and further prevention of noise induced hearing loss by otoacoustic emission
... recruits were studied before and after exposure to impulse-noise sources from the firing of weapons, where audiometric thresholds and otoacoustic emissions measurement before and after 6 months of noise exposure on an ...
7
Doppler shift compensation by the mustached bat: quantitative data
... Doppler shifts are frequency changes brought about by the relative motion between a sound source and a sound detector. In echolocating bats, the biosonar signals are Doppler- shifted in proportion to flight velocity or ...
15
Soft-Core Architecture for Odd/Even Order Sampling I/Q Demodulator with Dual-Port Block Memory Considerations
... clearly seen that the sampling frequency is reduced from approximately 8 kHz to 2 kHz. 1st Order Delta-Sigma quantization step size measurement results. 251[r] ...
11
Sensitivity improvement in 5QMAS NMR Experiments Using FAM N Pulses
... MAS rate (60 kHz) the FAM-N ef fi ciencies do not vary signi fi cantly as the rf nutation rate changes. For most conditions, although similar effi- ciencies are observed for all FAM-N methods, the efficiency of the ...
10
The application of NEC2 in predicting the radiated field from transmission tower arcing faults
... Figure 2 shows that the value of E-field increases linearly as the arc current increases. This is also true at other frequencies considered. The results can, thus, be scaled linearly. For future results, the current ...
7