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Power spectrum
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Part 2 book "High voltage engineering in power systems" included contents: Transformer behavior under lightning surge; lightning surges on towers; corona effects; frequency spectrum of surge impedances due to lightning; testing equipment and lightning flash counters; principle of protection from H. V. surges; energy extraction and storage from lightning; effects of electromagnetic fields on health.
186p
dianmotminh04
12-07-2024
0
0
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Investigating the occurrence of defects in structures is currently a major issue of significant interest. In this paper, we present experimental research findings on the relationship between the moments of the power spectrum and the presence of damage in bridge beam structures.
13p
viwalton
02-07-2024
1
1
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Patients with certain genetic diseases, such as autism spectrum disorder, have increased rates of de novo mutations within some protein-coding genes. We introduce the VARiant PRIoritization SuM (VARPRISM), a software package which incorporates functional variant prioritization information to improve the power to detect de novo mutations influencing disease risk.
11p
vioraclene
31-03-2024
1
1
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Ebook "Shattered symmetry: Group theory from the eightfold way to the periodic table" is to share the admiration for the power and the beauty of these symmetries. The reader is taken on a journey from the basic geometric symmetry group of a circle to the sublime dynamic symmetries that govern the motions of the particles. Along the way the theory of symmetry groups is gradually introduced with special emphasis on its use as a classification tool and its graphical representations.
511p
coduathanh1122
27-03-2024
3
1
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The paper "Evaluate the effectiveness of LoRa Network for data collection" evaluates the performance of the LoRa network at long distances under different spatial conditions. For the coverage and propagation speed requirements of the LoRa, a set of LoRa parameters including Spread Factor and Bandwidth calibrated properly is very important. The quality of the LoRa Network depends not only on the distance but also on the terrain and obstacles in the signal propagation process.
6p
lieuyeuyeu18
23-12-2022
28
4
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Lecture Probability Theory - Lecture 18: Power Spectrum. In this chapter includes the following topics: Power Spectra and Linear Systems, Discrete – Time Processes, Matched Filter, Spectrum Estimation / Extension Problem.
38p
cucngoainhan0
10-05-2022
15
1
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In this study, the individual and combined inhibitory effects of dexmedetomidine and lidocaine on the conduction group of isolated nerve were investigated by determining conduction velocity distribution (CVD) and power spectrum.
8p
viisaacnewton
26-04-2022
13
1
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The investigation of magnetic field strength variations over subterranean layers may reveal their locations on Earth’s surface and provide physical and geometrical characteristics. Magnetic studies were carried out around Gölcük caldera lake using proton magnetometers to identify subsurface volcanic structures. The acquired data were inverted using four different edge detection algorithms such as analytic signal, tilt angle, theta map, horizontal gradient. Afterwards, the results were used to determine the locations of the anomalous structures.
17p
tanmocphong
29-01-2022
13
1
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This paper proposes to use Expectation-Maximization algorithm to estimate noise power in case of missing data combined with genetic algorithm to optimize weight vectors by maximizing the probability of detection. The simulation results demonstrate that the proposed method outperforms the traditional methods in the sense of the performance of energy detection based spectrum sensing for CRN.
13p
trinhthamhodang1218
04-03-2021
18
2
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This research calculated the power spectrum of Alpha wave and Theta wave, to detect the transition of wake - sleep stages by K-means clustering algorithm. Sleep latency is one of the factors that determine the quality of sleep. The sleep onset is detected based on the phase shift of the Alpha and Theta waves. The exact timing of the sleep onset was important in this study. The user interface was developed in this study to compute sleep latency in normal and musical experiment.
9p
trinhthamhodang9
04-12-2020
20
2
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Orientation and the degree of isotropy are important in many biological systems such as the sarcomeres of cardiomyocytes and other fibrillar structures of the cytoskeleton. Image based analysis of such structures is often limited to qualitative evaluation by human experts, hampering the throughput, repeatability and reliability of the analyses.
23p
vioklahoma2711
19-11-2020
10
2
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The evaluation and assessment of the performance of photovoltaic (PV) cells in terms of measurable parameters requires the measurement of the current as a function of voltage, temperature, intensity, wind speed and spectrum. Most noticeable of all these parameters is the PV conversion efficiency η, defined as the maximum electrical power Pmax produced by the PV cell divided by the incident photon power Pin which is measured with respect to standard test conditions (STC). These conditions refer to the spectrum (AM 1.
10p
12120609
01-06-2020
19
0
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Today, nuclear power produces 11% of the world’s electricity. Nuclear power plants produce virtually no greenhouse gases or air pollutants during their operation. Emissions over their entire life cycle are very low.
8p
christabelhuynh
29-05-2020
7
1
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The fly ash (FA) from Pha Lai power plant was modified by Vinyltrimetoxysilan (VTMS) in order to enhance the dispersibility and reduce the agglomeration. FA was treated with nitric acid before the modification with VTMS. The structure of fly ash particles before and after the modification was characterized by several sophisticated techniques including Fourier transform infrared spectrum (FT-IR), thermogravimetric analysis (TGA) and field emission scanning electron microscopy (FE-SEM).
7p
quenchua5
17-05-2020
20
0
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An electrostatic induction spray charging system as attachment to powered knapsack mistblower was developed and evaluated for the performance. A high voltage generator was fabricated on the basis of Cockcroft-Walton voltage multiplier principle with input of 6 V DC battery to provide high voltage required at the developed charging electrode assembly (Model-I and II) for inducing electrostatic charge on spray droplets.
16p
caygaocaolon4
04-04-2020
22
4
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This work has presented yearly dry and wet seasons in the analysis of 28 years daily recorded temperature, relative humidity and rainfall data from 1988 to 2015 in Rajshahi division, Bangladesh using Hilbert frequency analysis. Analysis has estimated the seasonal boundaries in time according to the instantaneous frequency in cycles/day and the estimations are verified with studying power spectrum of the time series. Two boundaries are obtained in each analysis over the average of yearly analysis of four years.
14p
12120609
22-03-2020
19
2
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The plethora of the emerged radio frequency applications makes the frequency spectrum crowded by many applications and hence the ability to detect specific application’s frequency without distortion is a difficult task to achieve.
13p
vivalletta2711
11-01-2020
21
2
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In order to insure the stability of power grid, 24kV composite porcelain insulator PD monitoring system is studied in this paper. With the help of pulse current method detection method, the PD propagation characteristics can be precisely recognized by the power spectrum density (PSD).
5p
vivalletta2711
11-01-2020
17
1
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This paper presents an optimal configuration method of energy storage system (ESS) in microgrid, which is based on the result of spectrum analysis of sample data of pulsed load. This method both takes into consideration the stability of system and energy storage cost at the same time.
6p
vivalletta2711
11-01-2020
15
0
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This paper presents a new harmonics frequency estimation method. Unlike the conventional harmonic frequency estimation method (fast Fourier transform), the new algorithm is based on spectrum analysis techniques often used to estimate the direction of angle; the most popular is the multiple signal classification (MUSIC) algorithm.
5p
vivalletta2711
11-01-2020
14
1
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