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5 to 50 Hz

Power quality event analysis in 25 kV 50 Hz AC railway system networks

Power quality event analysis in 25 kV 50 Hz AC railway system networks

... Power quality (PQ) phenomena superimposed on voltage and current signals of transmission and distribution electricity grids, due to their non-stationary characteristics and random nature, introduce challenges in ...

6

The Effects of 50 Hz Electromagnetic Fields Induction of Apoptosis in Rat Ovarian Follicles

The Effects of 50 Hz Electromagnetic Fields Induction of Apoptosis in Rat Ovarian Follicles

... Electromagnetic radiations which are briefly called EM radiation or electromagnetic field (EMF) are Emission waves phenomenon’s that spreads in vacuum or Article. These waves consist of electric and magnetic fields that ...

5

Characterization of an In-house Built 50 Hz Single Dielectric Barrier Discharge System Having Asymmetric Electrodes

Characterization of an In-house Built 50 Hz Single Dielectric Barrier Discharge System Having Asymmetric Electrodes

... (5) The indices 1 and 2 refers to the first and second spectral lines, I is the intensity of the seleBoltzmannes, k is the Boltzman constant, g is the statistical weight, E is the excited state’s energy and A is ...

8

Effect of 50 Hz Electromagnetic Fields on the Induction of Heat-Shock Protein Gene Expression in Human Leukocytes

Effect of 50 Hz Electromagnetic Fields on the Induction of Heat-Shock Protein Gene Expression in Human Leukocytes

... Cells respond to a variety of stresses, the precise nature of the response being determined by the insult encountered. For several types of stressors, such as ionizing radiation, heat and some chemicals, the response ...

6

Optical Characterization of 50 Hz Atmospheric Pressure Single Dielectric Barrier Discharge Plasma

Optical Characterization of 50 Hz Atmospheric Pressure Single Dielectric Barrier Discharge Plasma

... [4, 5]. On the other hand, the low frequency DBDs ranging from few Hz to few kHz require very simple or no impedance matching network which makes these systems more practical for industrial ...with ...

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Characterization and Dielectrical Study of Agi – Ag2O-P2O5-Fe2O3 Glass

Characterization and Dielectrical Study of Agi – Ag2O-P2O5-Fe2O3 Glass

... Various compositions of silver conducting glasses [AgI – Ag 2 O-P 2 O 5 -Fe 2 O 3 ] were prepared by melt quenching technique. X-ray diffraction (XRD),Mossbauer effect (ME), infrared (IR), differential thermal ...

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Influence of Steel Non-Linearity in Assessing 50-60 Hz Interference on Pipelines

Influence of Steel Non-Linearity in Assessing 50-60 Hz Interference on Pipelines

... The example studied consists of a buried pipeline (6.167 km long and earthed at its terminal points) under the induction by a 380 kV–50 Hz power line which is 12.1 km long and in fault condition; the fault ...

10

The Frequency Response of Counterflow Diffusin Flames

The Frequency Response of Counterflow Diffusin Flames

... the 50, 60 and 70 % sampling ...and 5, where the reaction zone temperature and width were quasi-steady in structure and response throughout the oscillation at 30 and 50 Hz ...

177

Effect of 50 Hz Electromagnetic Fields on Alpha Amylase Activity

Effect of 50 Hz Electromagnetic Fields on Alpha Amylase Activity

... The effect of extremely low frequency (ELF) electromagnetic field (EMF) (50 Hz 0.5 mT) on the activity of alpha amylase (EC 3.2.1.1) was studied. In addition factors effecting the enzyme activity, ...

6

50 HZ Electromagnetic Fields Enhance Urease Activity

50 HZ Electromagnetic Fields Enhance Urease Activity

... of radicals reacting with biological molecules would increase leading to possible adverse effects on cell structure and organs. Urea binds to the urease through a tetrahedral intermediate facilitated by Ni sites [Fig ...

6

Dynamic response of standing and seated persons to whole body vibration: principal resonance of the body

Dynamic response of standing and seated persons to whole body vibration: principal resonance of the body

... 10 Hz (Figure 2.62(b)). It was concluded that ‘the fourth mode at 5.06 Hz (in the normal posture) corresponded to the principal resonance seen in the driving point response of the seated ...

375

Effects of concurrent visual tasks on cortico-muscular synchronization in humans

Effects of concurrent visual tasks on cortico-muscular synchronization in humans

... attentional division was needed (Ignore condition). Any change in the coherence value was not due to force level contraction as our results showed that subjects performed the isometric contraction with equal force. In ...

12

Improvement of diaphragm and limb muscle isotonic contractile performance by K+ channel blockade

Improvement of diaphragm and limb muscle isotonic contractile performance by K+ channel blockade

... The K + channel blocking aminopyridines greatly improve skeletal muscle isometric contractile performance during low to intermediate stimulation frequencies, making them potentially useful as inotropic agents for ...

9

Epidemiology and economic burden of herpes zoster and post herpetic neuralgia in Italy: A retrospective, population based study

Epidemiology and economic burden of herpes zoster and post herpetic neuralgia in Italy: A retrospective, population based study

... that HZ or PHN was the initial reason for hospitalisation, which may have affected the estimates of disease ...that HZ patients will usually loose between 7 and 10 working days, while in case of serious ...

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Space charge and charge trapping characteristics of cross linked polyethylene subjected to ac electric stresses

Space charge and charge trapping characteristics of cross linked polyethylene subjected to ac electric stresses

... insulation when stressed at power frequency (50 Hz). It should be pointed out that the poling times were considerably longer in the literature whereby space charge accumulations were observed. It was also ...

9

Laser wakefield acceleration with active feedback at 5 Hz

Laser wakefield acceleration with active feedback at 5 Hz

... We describe the use of a genetic algorithm to apply active feedback to a laser wakefield accelerator at a higher power (10 TW) and a lower repetition rate (5 Hz) than previous work. The temporal shape of ...

13

The Equivalent Inductance Silicon Micro-Pixel Avalance Photodiodes

The Equivalent Inductance Silicon Micro-Pixel Avalance Photodiodes

... Diodes under the investigation are made on n -Si with ρ ̴ 7-10 Ohm·cm (Fig.1a). To improve field homogeneity on n-Si (1) surface n + type thin layer (2) has been formed by ion doping. The choice of As ions instead of ...

5

Are auditory evoked frequency and duration mismatch negativity (MMN) deficits endophenotypic for schizophrenia?  High density electrical mapping in clinically unaffected first degree relatives, recent onset and chronic schizophrenia

Are auditory evoked frequency and duration mismatch negativity (MMN) deficits endophenotypic for schizophrenia? High density electrical mapping in clinically unaffected first degree relatives, recent onset and chronic schizophrenia

... The chronic patient group was comprised of 45 individuals (14 female patients; aged 19 – 63; mean ⫾ SD age ⫽ 42.80 ⫾ 12.65 years) with a diagnosis of schizophrenia as defined by DSM-IV criteria (1 patient also had ...

10

A New Approach for Transformer Interturn Faults Detection Using Vibration Frequency Analysis

A New Approach for Transformer Interturn Faults Detection Using Vibration Frequency Analysis

... First, transformer healthy state is simulated. Fig. 5 shows transformer HV current. It is known that inrush current is created at the start-up time due to core nonlinearity nature that is damped after a small ...

15

Equal Switching Distribution Method for Multi Level Cascaded Inverters

Equal Switching Distribution Method for Multi Level Cascaded Inverters

... Figure 5(e) and Figure 6(e) show how the H-bridges output voltages are exchanged every cycle of modulation signal (0.02sec) and that average switchings number be- comes equal in all three H-bridges. For example in ...

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