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Wyświetlanie 1-15 z 20
Tytuł:
Principal Component Analysis of Egg Quality Characteristics of Isa Brown Layer Chickens in Nigeria
Autorzy:
Ukwu, H. O.
Abari, P. O.
Kuusu, D. J.
Powiązania:
https://bibliotekanauki.pl/articles/1178566.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Correlation
Egg
Isa brown
Principal component
Quality
Opis:
This study was designed to provide an objective description of egg quality of Isa brown layer chickens in Nigeria. 104 eggs were used for the study. The eggs were initially weighed individually using a sensitive electronic weighing balance with accuracy of 0.001g. Data were collected on egg weight, egg length, egg width, oblong circumference, egg shell weight, yolk height, albumen height, albumen length, Haugh unit, albumen index and egg shell thickness. Data were subjected to principal component analysis. Egg quality traits had three principal components (factors) that contributed 85.805% of the total variability of the original eleven egg characteristics tested. The three principal components had Eigen values of 4.73 (PC1), 3.656 (PC2) and 1.069 (PC3). The first factor (PC1) accounted for 42.84% of the total variance, the second factor (PC2) accounted for 33.24% of the total variance, while the third factor (PC3) accounted for 9.72% of the total variance. The moderate to large communalities (0.583 – 0.944) observed indicate that a large number of variance has been accounted for by the factor solution. The present principal component analysis provided a means for objective description of the interdependence in the original eleven egg quality characteristics of Isa Brown layer chickens.
Źródło:
World Scientific News; 2017, 70, 2; 304-311
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of growth performance of common bean (Phaseolus vulgaris L.) genotypes during two phenological phases
Autorzy:
Gebeyehu, Yeshiwas Sendekie
Powiązania:
https://bibliotekanauki.pl/articles/1059435.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biomass yield
Correlation and Growth parameters
Phaseolus vulgaris
Opis:
Genotypic differences in biomass yield of many crops are mainly associated with variations in leaf area. Physiological growth analysis is the important in prediction of the performance of genotypes during plant growth. Therefore, the field experiment was conducted to study growth characteristics of common bean genotypes at Hawassa university agriculture research site. Three genotypes including Red Wolayita, Hawassa Deme and Ibado were evaluated in randomized complete block design with four replications during 2017 using irrigation. Growth analysis was done using primary data from two successive samplings in 20 days interval during linear vegetative growth stage and flowering stage. Growth parameters, specific leaf area (SLA), leaf area ratio (LAR), leaf area ratio (LAI), net assimilation rate (NAR), crop growth rate (CGR), relative growth rate (RGR) and biomass yield and their correlation were determined. The study result revealed that, Red Wollita had the highest specific leaf area (241.975 cm2 g-1) and leaf area ratio (161.36 cm2 g-1), Hawassa Deme had the highest net assimilation rate (27.5 mg dm-2 Day-1), leaf area index (1.35), relative growth rate (48.02 gg-1 day-1), average growth rate (0.1g day-1), crop growth rate (0.03g m-2 day-1) and biomass yield (2989.6 kg/ha). The ANOVA result indicated that, there was highly significant difference (p < 0.01) among genotypes for biomass yield. Correlation of major growth parameters with biomass yield was investigated. Biomass yield had positively highly correlated with net assimilation rate, absolute growth rate, relative growth rate and crop growth rate with correlation coefficient of (r = 0.39, 0.33, 0.42 and 0.56), respectively.
Źródło:
World Scientific News; 2019, 128, 2; 171-181
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Empirical assessment of efficiency of entropy source for random number generators using autocorrelation factor test
Autorzy:
Shreenabh, Moujesh Agrawal
Powiązania:
https://bibliotekanauki.pl/articles/1076114.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Entropy
auto correlation factor test
cyber-security
randomness
Opis:
To achieve true randomness of numbers, the entropy source needs to be efficient. The statistical testing of efficiency of entropy source is necessary as it is used in random number generators for cryptography, simulation, statistical sampling, etc. 5000 numbers each were generated in four experimental entropy conditions: Control experiment with white light, Experimental conditions with multicoloured light with light path not disrupted, while light with path disrupted by thermocol balls, multicoloured light with path disrupted by thermocol balls. The numbers thus generated using each entropy condition were tested by Auto Correlation Factor Test to identify optimal experimental condition. The results were displayed in graphical and tabular format. The four graphs depicted the autocorrelations clearly showing that the best results were obtained for the fourth experimental condition ‘multicoloured light fan on’. It was found that Autocorrelation factor test is a powerful test for empirical assessment of efficiency of entropy source for random number generation. If the random number generator developed by any individual or organization is tested by Autocorrelation factor test, the efficiency of the entropy source can be pre-established thus preventing post hazards like hacking of random numbers. The security of data is a major concern in all areas such as defense, banking, research, designing and evaluation of examinations, etc.
Źródło:
World Scientific News; 2019, 117; 228-234
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of substituent effects on β-naphthyl based isoxazoles by IR and NMR spectra
Autorzy:
Thirunarayanan, G.
Sathiyendiran, V.
Arulkumarn, R.
Sundararrajan, R.
Manikandan, R.
Vanangamud, G.
Powiązania:
https://bibliotekanauki.pl/articles/1194022.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Correlation analysis
IR spectra
NMR spectra
β-naphthyl dihydroisoxazoles
Opis:
A series containing thirteen 3-(2-naphthyl)-5-(substituted phenyl)-4,5-dihydroisoxazole have been synthesized and examined their purities by their data reported earlier. The characteristic infrared νC=N (cm-1) stretches, NMR chemical shifts (δ, ppm) of H4,4׳, H5 protons, C3-5 carbons were assigned and correlated with Hammett substituent constants and Swain-Lupton’s parameters using single and multi- regression analysis. From the results of regression analysis the effect of substituents on the spectral data have been studied.
Źródło:
World Scientific News; 2015, 9; 35-58
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between tourist accommodation establishments and natural environment in Eastern Region of Poland
Autorzy:
Gabryjończyk, Piotr
Kułaga, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1179511.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Eastern Poland
accommodation
correlation
natural environment
occupancy rate
tourism
Opis:
Natural landscape features are considered to be one of the most significant factors determining spatial distribution of tourist traffic in case of long-term holidays. This type of vacations seems to be crucial for economic impact of the tourism, as tourism multiplier points out accommodation as services with largest further turnover. Perception of the natural environment may be very subjective, however some of its elements can be easily measured and compared, thus may be treated as a specific determinant having influence on tourism. Therefore the paper is an attempt to find a statistical relationship, measured by correlation, between the size of forests, protected areas and surface of inland waters, as well as their share in the overall area of administrative units, and the number of beds in tourist accommodation establishments and their occupancy rate in years 2012 and 2014. The research area was Eastern Region of Poland (by NUTS 1 classification), which covers Podlaskie, Lubelskie, Podkarpackie and Świętokrzyskie provinces. The advantage of such delimitation is an analysis of areas with inner landscape diversification, from lake sites and plains in the north, through uplands and low hills in the center, to mountains in the south. Moreover, this region is also famous for the presence of numerous and varied forms of nature conservation. In the paper statistical measures were used and the main source of data were databases of Central Statistical Office of Poland.
Źródło:
World Scientific News; 2017, 78; 376-382
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IR and NMR spectral LFER study on 3-benzoicacid based sulfonamides
Autorzy:
Dineshkumar, Selvakumar
Thirunarayanan, Ganesamoorthy
Powiązania:
https://bibliotekanauki.pl/articles/1182898.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
3-(substituted phenylsulfonamido)benzoic acids
ir and nmr spectra
correlation analysis
Opis:
A series containing nine 3-(substituted phenylsulfonamido)benzoicacids) have been synthesized and examined their purities by their data reported earlier. The characteristic infrared (NH, SO(as), SO(sym) and CO(as) cm-1) stretches, NMR chemical shifts (δ, ppm) of NH protons, CO carbons were assigned and correlated with Hammett substituent constants and Swain-Lupton’s parameters using single and multi-regression analysis. From
Źródło:
World Scientific News; 2016, 53, 3; 367-384
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Hammett spectral correlation studies of some substituted cyanopyridine compounds
Autorzy:
Arulkumaran, R.
Manikandan, V.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1179260.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Hammett constants
IR and NMR spectra
Single and multi-correlation analysis
Substituted cyanopyridine
Opis:
About ten substituted cyanopyridine compounds have been synthesized and the purities of these pyridines were examined with their physical constants, analytical and spectroscopic data provided in the literature. They are characteristic infrared stretches and NMR chemical shifts were assigned and they are correlated with Hammett substituent constants using single and multi-linear regression analysis. From the results, the effect of substituents on the spectral data of cyanopyridine has been discussed.
Źródło:
World Scientific News; 2017, 80; 239-255
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study the relationship between creativity and knowledge
Autorzy:
Chełmecka, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1157441.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Pearson correlation
Project management
creativity
dependency study
independence test χ ^ 2
knowledge
statistical survey
statistics
Opis:
Dependency analysis is based both on planning, implementation and control. However, you can look at this process from the statistical side. Project management lists several methods that differ in priorities, such as time, budget, risk, or commitment. Comparison of several methods used gives a broader perspective on the subject matter. The statistical survey was mainly based on the study of the relationship between knowledge actors and creativity.
Źródło:
World Scientific News; 2018, 92, 2; 198-210
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectral studies and antimicrobial activities of some (E)-N-(substituted benzylidene)-2,6-diisopropylanilines
Autorzy:
Thirunarayanan, G.
Manikandan, V.
Aarulkumaran, R.
Rarajan, R.
Usha, V.
Powiązania:
https://bibliotekanauki.pl/articles/1182740.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
2
6-di(propan-2-yl)aniline
Schiff base
Spectral correlation and Antimicrobial studies
Synthesis
Opis:
A series of Schiff’s base compounds were synthesized from 2,6-di(propan-2-yl) aniline with substituted aromatic aldehydes. The structures of all the synthesized compounds were characterized by physical constants, IR and NMR spectroscopic techniques. All the observed IR frequencies νC=N (cm-1), NMR δ(ppm) of C-H & C=N chemical shifts have been correlated with Hammett substituent constants and F and R parameters using single and multi-linear regression analyses in order to study the effect of substituents on these spectral data has been studied. All the synthesized Schiff’s base compounds were screened for their antimicrobial activity by disc diffusion method.
Źródło:
World Scientific News; 2017, 66; 20-42
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of SHIFTZCC codes for Optical CDMA system
Autorzy:
Panda, Satyasen
Powiązania:
https://bibliotekanauki.pl/articles/1178705.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
cross correlation (CC)
multiple access interference (MAI)
optical code division multiple access (OCDMA)
shift zero cross correlation code (SHIFTZCC) and signal to noise ratio (SNR)
spectral amplitude coding optical code division multiple access (SAC-OCDMA)
Opis:
In this paper, we propose a novel SAC-OCDMA code called Shift Zero Cross Correlation (SHIFTZCC) code with zero cross correlation property to minimize the Multiple Access Interface (MAI), to be more scalable and secure compared to the other existing SAC-OCDMA codes. This SHIFTZCC code is constructed using address segment and data segment. In this work, the proposed SHIFTZCC code is implemented in an optical network using the Opti-System software for the spectral amplitude coded optical code division multiple access (SAC-OCDMA) scheme. The chief advantage of the proposed SHIFTZCC code is the zero cross correlation property, which reduces both the MAI and other noises improving the system performance. The proposed SHIFTZCC code provides flexibility in selecting the code parameters, supports a large number of users with higher data rate and longer fiber length. Simulation results prove that the optical code division multiple access system based on the proposed SHIFTZCC code supports maximum number of simultaneous users with higher transmission rate, lower bit error rates (BER) and longer travelling distance without any signal quality degradation, as compared to the former existing SAC-OCDMA codes.
Źródło:
World Scientific News; 2017, 67, 2; 365-389
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, and spectral Hammett correlation analysis of some (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds
Autorzy:
Balaji, S.
Vijayakumar, R.
Manikandan, V.
Senbagam, R.
Rajarajan, M.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1182925.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(e)-5-chloro-2-hydroxyphenyl chalcones
synthesis
uv
ir and nmr spectra
hammett correlation analysis
substituent effect
Opis:
A series of substituted of (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds by cross-aldol condensation reaction of 5-chloro-2-hydroxy acetophenone with various substituted benzaldehyde in the presence sodium hydroxide (base). The synthesized substituted (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds was characterized by physical constants, UV, FT-IR, 1H & 13C-NMR spectral data. All the spectral data of substituted (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds has been Hammett correlation with linear regression analyses.
Źródło:
World Scientific News; 2016, 49, 2; 144-161
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Correlation analysis of substituted 2-((phenyl amino)methyl)-1,2-dihydro-5-(3-methoxyphenyl)-1-phenyl-1,2,4-triazole-3-thiones
Autorzy:
Thirunarayanan, G.
Kamalkkannan, D.
Suresh, R.
Sakthinathan, S. P.
Sundararajan, R.
Arulkumara, R.
Manikandan, R.
Vanangamudi, G.
Sathiyendiran, V.
Powiązania:
https://bibliotekanauki.pl/articles/1194047.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1-2-4-triazole
Hammett constants
IR spectral
NMR spectral
Swain-Lupton’s parameters
correlation
multi-regression analysis
Opis:
A series of substituted 2-((phenyl amino)methyl)-1,2-dihydro-5-(3-methoxyphenyl)-1-phenyl-1,2,4-triazole-3-thione compounds were synthesized and examined their purities as per the literature. The IR spectra of νC=N, νC=S, νNH and νCOC frequencies and NMR chemical shifts (ppm) of δNH, δOCH3, δCH2, δC=N, δC=S, δOCH3 and δCH2 are also assigned. The assigned IR and both 1H NMR and 13C NMR spectral data have been correlated with Hammett substituent constants and Swain-Lupton’s parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituents on the above spectral data has been studied.
Źródło:
World Scientific News; 2015, 12; 24-43
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Biomass of the Earth as the Direct Energy-Mass Equivalence from ~3.5 Billions of Years of Solar Flux
Autorzy:
Persinger, Michael A.
Powiązania:
https://bibliotekanauki.pl/articles/1188089.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
global biomass
solar photons
mass-energy equivalence
entanglement
excess correlation hydronium ions
ultraweak bioluminescence
Popp photons
Cosic resonance
Opis:
Life is considered to be quantitative phenomena based upon principles derived from Astronomy, Physics, and Chemistry. The mass equivalence of the total energy from the Sun that occurred over the terrestrial surface from 3.5 billions ago to present is within the range of empirical estimations for the total biomass on the Earth. If the mass of living systems is the converted photon energy integrated over time then the ubiquitous emissions of photons in the order of picoWatts per square meter may not be a metabolic artifact but a reflection of the matter’s origin. Quantification demonstrates this magnitude of photon flux density is an expected dissipation from the photon-mass conversion that defines living systems. Because all energy, particularly photons, within Life on this planet originated from the Sun their maintenance as Popp (virtual) photons creates the conditions for non-local effects between solar activity and Life. The occurrence of entanglement between solar-terrestrial photons could alter the models, mechanisms, and attributions for the persistent and multiple correlations between solar activity and the phenomena measured within various levels of discourse from physical chemistry to large groups of organisms.
Źródło:
World Scientific News; 2016, 56; 110-120
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral correlation analysis and evaluation of antimicrobial activities of some (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-ones
Autorzy:
Sathiyendiran, V.
Balaji, S.
Senbagam, R.
Vijayakumar, R.
Manikandan, V.
Rajarajan, M.
Muthuvel, I.
Markandan, R.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1031849.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
4-dimethylthiazol enones
Antimicrobial activities
Crossed-Aldol condensation
E-2
IR and NMR spectra
Spectral correlation analysis
Substituent effects
UV
Opis:
In this work, an attempt was made to synthesized (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one by cross-aldol condensation reaction of 5′-acetyl-2,4-dimethylthiazole with various substituted Benz aldehyde in the presence base (sodium hydroxide). The synthesized (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one derivative was characterized by physical constants, UV, FT-IR, 1H-NMR & 13C-NMR spectral data. All the observed spectral data of substituted (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one compounds have been correlated with Hammett substituent constants(σ, σ+, σI & σR) and F and R parameters using single and multi-linear regression analyses and studied for their anti-microbial activities and compared with the standard drugs (Ciprofloxacin). Some compound of the series exhibited promising anti-microbial activity compared to standard drugs (Ciprofloxacin).
Źródło:
World Scientific News; 2020, 141; 66-90
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction of BER using RSC code for Optical Code Division Multiple Access Networks
Autorzy:
Panda, Satyasen
Powiązania:
https://bibliotekanauki.pl/articles/1178316.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cross Correlation (CC)
Multiple Access Interface (MAI)
Optical Code Division Multiple Access (OCDMA)
Random Sparse Code (RSC)
Wavelength hopping time spreading (WHTS)
Opis:
In this study, a two dimensional (2-D) wavelength hopping and time spreading (WHTS) optical code division multiple access (OCDMA) code is designed using Sparse ruler technique. The proposed 64 bit 2-D code is constructed by an algorithm based on random spacing of sparse codes referred in this work as Random Sparse Code (RSC). The performance of the proposed 2-D RSC is evaluated in terms of bit error rate (BER), received signal power and time domain analysis of received signals. The system performance of the OCDMA system utilizing 2-D RSC code improved significantly due to less BER, low cross correlation property and simple encoder/decoder design. The output BER is much lower at a data rate of 1.25 gbps and 2.5 gbps for a distance of 100 km with ITU-T standard single mode fiber with attenuation level of 0.2dB/km.
Źródło:
World Scientific News; 2017, 81, 2; 106-120
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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