HF heating
Low-frequency waves in HF heating of the ionosphere
... during heating experiments with modulated HF waves (1–10 MHz) originate from multiple physical mecha nisms that operate at different altitudes and ...modulated HF heating, and this requires ...
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Generation of ELF waves during HF heating of the ionosphere at midlatitudes
... during heating experiments with modulated HF waves (1 – 10 MHz) originate from three types of physical ...the HF heating leads to a local hot spot and thus a region of strong gradient in the ...
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Simulations of ionospheric turbulence produced by HF heating near the upper hybrid layer
... ionospheric heating near the upper hybrid resonance layer in the presence of a small-scale density ...active HF heating experiments performed at middle and high latitudes where injection of a pump ...
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Statistical study of PMSE response to HF heating in two altitude regions
... to HF heating in the lower and upper PMSE layers is ...the heating-on and heat- ing-off times) are analyzed and compared between the lower and upper ...
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Statistical signature of active D region HF heating in IRIS riometer data from 1994 2004
... Abstract. In this paper we study the effect of artificial HF heating on cosmic radio noise absorption in the D-region ionosphere. The effect has earlier been studied theoreti- cally in idealised cases and ...
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Generation of whistler waves by continuous HF heating of the upper ionosphere
... the HF-heated region of the ...CW HF heating, was shown to be consistent with resonant mode conversion to whistler waves in the presence of artificially pumped meter-scale ...pulsed heating, ...
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Simulations of the generation of energetic electrons and the formation of descending artificial plasma layers during HF-heating at Arecibo
... HF heating experiments at the High-Frequency Active Auroral Research Program (HAARP) (Pedersen et ...The HF-driven ionization process, initiated near 220-km altitude subsequently des- cended and ...
9
Low frequency waves in HF heating of the mid-latitude ionosphere
... Ionospheric heating experiments have enabled exploration of the ionosphere as a large-scale natural laboratory for the study of many plasma ...modulated heating of the plasma lead to fluctuations in the ...
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Incidence angle dependence of Langmuir turbulence and artificial ionospheric layers driven by high-power HF-heating
... finite heating beam width at the magnetic zenith are also ...ionospheric heating experiments using ground-based, high-power radio transmitters to heat the overhead plasma, where recent observations of ...
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Comparison and Potential Calculation of Clean Heating Technology Route in North China
... electric heating. Thirdly, the electric heating facilities are highly automated, convenient and ...electric heating is pollution-free and clean for residential ...electric heating will ...
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Formation of Ni Aluminide Containing Hf by Simultaneous Electrodeposition of Al and Hf and Cyclic Oxidation Resistance
... of Hf electro- depositon due to the reduction of Hf ion were competing reactions, the reaction rate of the Hf electrodeposition inceased due to the decease in the reaction rate of the Al ...the ...
7
A compact portable HF terminal
... The system incorporates novel digital signal processing DSP algorithms for modulationldemodulation [4], frequency-offset correction [4], error control [5][6], synchronisation m[8], real-[r] ...
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Performance of Porous Carbon as Catalyst Support for Anode from Rice Husk in a Direct Methanol Fuel Cell
... TEM images prove the PtRu nanoparticles (dark dots) are uniformly dispersed on carbon support (gray particles). The elongated and connected catalyst particles in the PtRu/RH-HF catalysts (Fig. 5(a)) are observed. ...
15
The frequency agile HF antenna
... The model of the loading coil provides a means of analysing the antenna operation but requires a more detailed understanding of the effects of frequency and power level together with the[r] ...
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Non-invasive intraventricular pressure differences estimated with cardiac MRI in subjects without heart failure and with heart failure with reduced and preserved ejection fraction
... ► Both systolic and diastolic dysfunction are present in heart failure (HF) with reduced (HFrEF) and with preserved ejection fraction (HFpEF). Thus, a better understanding of the nature of physiological abnor- ...
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Woodceramic Heating Elements for Low Temperature Heating
... Woodceramic heating blocks suitable for low temperature heating, ...Woodceramic heating blocks having lower water absorptivity were found to be favorably produced by carbonizing in the temperature ...
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Simultaneous transcutaneous electrical nerve stimulation mitigates simulator sickness symptoms in healthy adults: a crossover study
... Abbreviations CP: Concentration performance; E%: Percentage of errors; HR: Heart rate; HRV: Heart rate variability; HF: High-frequency power component; HF/LF + HF: Ratio of high-frequenc[r] ...
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Human Cytomegalovirus UL38 Protein Blocks Apoptosis
... normal HF cells were infected with recombinant HCMV at an input genome number equivalent to 2 PFU of wild-type virus/cell in the presence of 100 M pan-caspase inhibitor Z-VAD-FMK, which was initially made as a ...
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Effects of mineralocorticoid receptor antagonists in patients with preserved ejection fraction: a meta-analysis of randomized clinical trials
... of HF-PEF is still challenging because various criteria have been proposed to define patients with “diastolic HF” ...to HF were low, the assessment of the effect on clinical outcomes in PEF patients ...
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How effective is an in-hospital heart failure self-care program in a Japanese setting? Lessons from a randomized controlled pilot study
... the HF knowledge score over 6 ...of HF hospitalization and/or cardiac death, Kaplan– Meier survival curve analysis with log-rank test and Cox proportional-hazard model were ...
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