Frequency estimates

Part 2 book "Electric power system fundamentals" included contents: Power flows; optimal operation of power systems; real and reactive power and frequency control; general fault studies in electrical power systems; contingency analysis; state estimation in electrical power systems

220p dianmotminh04 12-07-2024 0 0   Download

Part 1 of ebook "Principles of data mining (Third edition)" provides readers with contents including: Chapter 1 - Introduction to data mining; Chapter 2 - Data for data mining; Chapter 3 - Introduction to classification, Naïve bayes and nearest neighbour; Chapter 4 - Using decision trees for classification; Chapter 5 - Decision tree induction, using entropy for attribute selection; Chapter 6 - Decision tree induction, using frequency tables for attribute selection; Chapter 7 - Estimating the predictive accuracy of a classifier;...

263p daonhiennhien 03-07-2024 1 1   Download

This study proposes an algorithm that includes both PNC frequency and sequence information to identify the predominant provider and estimates the percentage of identified predominant providers. Additionally, differences in travel distances to the predominant and nearest provider are compared.

9p vishanshan 27-06-2024 1 1   Download

In this work, the free vibration analysis of Timoshenko microbeams made of the Functionally Graded Material (FGM) on the Winkler–Paternak elastic foundation based on the Modified Coupled Stress Theory (MCST) is investigated. Material characteristics of the beam vary throughout the thickness according to the power distribution and are estimated though Mori–Tanaka, Hashin–Shtrikman and Voigt homogenization techniques.

13p dianmotminh02 03-05-2024 7 2   Download

In ebook "Electron-phonon interactions in novel nanoelectronics" the electron-phonon interactions in the charged molecular systems such as polyacenes, polyfluoroacenes, B, N-substituted polyacenes, and polycyanodienes are discussed.

97p coduathanh1122 27-03-2024 1 1   Download

Tumour mutation burden (TMB), defined as the number of somatic mutations per megabase within the sequenced region in the tumour sample, has been used as a biomarker for predicting response to immune therapy.

9p vileonardodavinci 23-12-2023 5 4   Download

In this paper, we propose a method that uses the non-uniform Fast Fourier Transform (FFT) to compensate for Doppler frequency shifts in orthogonal frequency division multiplexing (OFDM) based underwater acoustic (UWA) communication systems. To estimate the Doppler frequency shift, the paper proposes using a pilot carrier frequency (PCF) that is identified by transmitting with greater power in the frequency domain compared to other subcarriers.

7p vijeff 30-11-2023 3 3   Download

This study aimed to estimate the allelic and genotypic frequencies of single nucleotide polymorphisms (SNPs) of MC4R (melanocortin-4- receptor gene) and PIT1 (pituitary specific transcription factor-1) genes, and their additive dominance genetic effects on production and carcass traits in Duroc pigs.

7p viengels 25-08-2023 9 2   Download

Part 1 book "MIMO-OFDM wireless communications with Matlab R" includes content: The wireless channel - Propagation and fading, SISO channel models, MIMO channel models, introduction to OFDM, synchronization for OFDM, channel estimation.

226p oursky02 07-08-2023 9 5   Download

We studied giant magnetoimpedance (GMI) effect in magnetically soft amorphous Co-rich microwires in the extended frequency range. From obtained experimentally dependences of the GMI ratio on magnetic field at different frequencies we estimated the penetration depth and its dependence on applied magnetic field and frequency.

5p viberbers 09-08-2023 3 3   Download

Continued part 1, part 2 of ebook "Recent advances in structural integrity analysis: Proceedings of the International Congress (APCF/SIF-2014)" presents the following content: natural frequency analysis of rat whiskers; evaluation of mechanical properties of porcine sclera; temperature effect on strength of aluminum based high thermal conductive composites containing VGCF-CNT filler; low temperature stress estimation of fiber reinforced material; stress corrosion cracking of sensitized stainless steel type 304 in high-temperature, high-purity water environment;...

305p dieptieuung 17-07-2023 5 4   Download

Millimeter-wave wireless communications systems are proving many advantages in comparison to systems operating at the lower frequency band thanks to their wide bandwidth, ability to provide high-speed and multimedia services. This paper proposes a millimeter-wave multi-antenna system for the estimation of DOA of radio signal in the azimuth plane operating at 28 GHz.

9p viwolverine 11-07-2023 4 4   Download

This report presents an analytical approach to the natural frequency analysis of a porous beam consisting of a host porous layer reinforced with graphene platelets (GPLs), namely GPL-reinforced porous core, and two piezoelectric outer layers. In the modelling, symmetric distributions of both porosity and GPLs in the core are supposed. The effective mechanical properties of the GPL-reinforced porous core are estimated by Halpin–Tsai model and the rule of mixture.

13p viwolverine 11-07-2023 3 2   Download

Relationships between individuals and inbreeding coefficients are commonly used for breeding decisions, but may be affected by the type of data used for their estimation. The proportion of variants with low Minor Allele Frequency (MAF) is larger in whole genome sequence (WGS) data compared to Single Nucleotide Polymorphism (SNP) chips.

12p vinarcissa 21-03-2023 2 1   Download

The transcription factor 7-like 2 (TCF7L2) gene is the most significant genetic risk factor for type 2 diabetes (T2D). Association analyses were performed on participants (n = 751, aged between 30 and 64) in the ISOR population-based study in the city of Oran. Dietary intakes were estimated using a weekly food frequency questionnaire.

8p vinarcissa 21-03-2023 2 1   Download

Two genetic marker-based methods are compared for use in breed prediction, using a New Zealand sheep resource. The methods were a genomic selection (GS) method, using genomic BLUP, and a regression method (Regp) using the allele frequencies estimated from a subset of purebred animals.

15p vinarcissa 21-03-2023 3 1   Download

The frequencies of apolipoprotein L1 (APOL1) variants and their associations with chronic kidney disease (CKD) vary substantially in populations from Africa. Moreover, available studies have used very small sample sizes to provide reliable estimates of the frequencies of these variants in the general population.

9p vinarcissa 21-03-2023 2 1   Download

Genetic variance that is not captured by single nucleotide polymorphisms (SNPs) is due to imperfect linkage disequilibrium (LD) between SNPs and quantitative trait loci (QTLs), and the extent of LD between SNPs and QTLs depends on different minor allele frequencies (MAF) between them.

14p vinarcissa 21-03-2023 4 1   Download

This study develops an online unmanned UAV path-planning strategy for autonomous search and localisation of RF emitter. The UAV is equipped with Receiver Signal Strength (RSS) sensors to localise stationary radio frequency (RF) emitter. A high-fidelity non-linear measurement model of RF propagation in an urban environment is adopted for this purpose. The measurement model of the likelihood function is considered a Gaussian mixture.

105p runthenight04 02-02-2023 1 1   Download

Haplotype data contains more information than genotype data and provides possibilities such as imputing low frequency variants, inferring points of recombination, detecting recurrent mutations, mapping linkage disequilibrium (LD), studying selection signatures, estimating IBD probabilities, etc.

11p vihagrid 30-01-2023 6 3   Download