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Wyświetlanie 1-15 z 31
Tytuł:
Phytochemical composition and antibacterial activity of ethanolic extract from trunk of Rothmannia wittii (Craib) Bremek. (Rubiaceae) newly found in Vietnam
Autorzy:
Van, H.T.
Nguyen, T.T.
Ton, H.T.T.
Dinh, K.T.T.
Le, V.S.
Pham, T.V.
Tran, G.B.
Powiązania:
https://bibliotekanauki.pl/articles/2096309.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Rothmannia wittii
extract
phytochemical composition
antibacterial activity
LC-MS
Opis:
Rothmannia wittii, which is found in Binh Chau-Phuoc Buu Nature Reserve, Bung Rieng ward, Xuyen Moc District, Ba Ria-Vung Tau Province, Vietnam, is a rare species of Rubiaceae family. The present study aimed to determine the phytochemical composition and antimicrobial activity of the ethanolic extract of the R. wittii trunk. A total of 10 compounds were identified by liquid chromatography-mass spectrophotometry (LC-MS), including 1) benzene, 1-(1,5-dimethyl-4- hexenyl)-4-methyl, 2) diphenylsulfone, 3) 6β-hydroxy-10-O-acetylgenipin, 4) cinnamyl-cinnamate, 5) genipin, 6) megastigmatrienone, 7) ethyl p-methoxy-trans-cinnamate, 8) rothalazepane, 9) 1,3,6-trimethylpyrano[2,3-d ]imidazole-2,5(1H,3H)-dione, and 10) shanzhiol. The extract also exhibited an antibacterial activity against six bacterial strains: Bacillus cereus, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and Salmonella enteritidis, as determined via disk diffusion agar method.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 4; 301-307
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anomalous Transport and Thermal Properties of the Solid Solutions U$\text{}_{1-x}$Th$\text{}_{x}$Cu$\text{}_{5}$M (M = Al, Ga, In and Sn)
Autorzy:
Troć, R.
Tran, V. H.
Kaczorowski, D.
Czopnik, A.
Powiązania:
https://bibliotekanauki.pl/articles/2011211.pdf
Data publikacji:
2000-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.Mb
72.15.Qm
75.20.Hr
Opis:
UCu$\text{}_{5}$M-type compounds are moderate heavy fermion systems with an antiferromagnetic order below T$\text{}_{N}$ = 18, 16-25, and 25 K for M = Al, (Ga, In), and In, respectively, and a ferrimagnetic order with T$\text{}_{C}$ = 54 K for M = Sn. We present the results of magnetoresistance measurements as a function of temperature and applied magnetic field for the pure compounds and for their solid solutions containing Th, i.e. U$\text{}_{1-x}$Th$\text{}_{x}$Cu$\text{}_{5}$M. Only in the case of UCu$\text{}_{5}$In a substantial positive contribution to the magnetoresistance was observed at low temperatures, as for normal antiferromagnets. For the Al- and Sn-based alloys the magnetoresistance at low temperatures is negative, and its field variation proves the existence of Kondo-type interactions. On Th-substitution the magnetic phase transition is shifted to lower temperature and simultaneously the magnetoresistance becomes less negative. The field dependence of the magnetoresistance of these alloys can be well described by the Coqblin-Schrieffer model. Interestingly, the heat capacity measurements have revealed a general tendency to increase the linear coefficient γ with magnetic dilution of a given UCu$\text{}_{5}$M compound by Th-substitution. This feature reflects an enlargement of the effective mass of conduction electrons with the increase in both the unit cell volume and magnetic dilution. Such a tendency is also observed for the system UCu$\text{}_{5}$(In$\text{}_{1-x}$Ga$\text{}_{x}$), though the unit cell is here suppressed with increasing x. Thus, a similar physical picture is reached in all these systems but involving probably different mechanisms.
Źródło:
Acta Physica Polonica A; 2000, 97, 1; 25-35
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Machine fault diagnosis and condition prognosis using classification and regression trees and neuro-fuzzy inference systems
Autorzy:
Tran, V. T.
Yang, B. S.
Powiązania:
https://bibliotekanauki.pl/articles/971018.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
fault diagnosis
classification
induction motors
decision trees
forecasts
fuzzy systems
Opis:
This paper presents an approach to machine fault diagnosis and condition prognosis based on classification and regression trees (CART) and neuro-fuzzy inference systems (ANFIS). In case of diagnosis, CART is used as a feature selection tool to select pertinent features from data set, while ANFIS is used as a classifier. The crisp rules obtained from CART are then converted to fuzzy if-then rules, employed to identify the structure of ANFIS classifier. The hybrid of back-propagation and least squares algorithm are utilized to tune the parameters of the membership functions. The data sets obtained from vibration signals and current signals of the induction motors are used to evaluate the proposed algorithm. In case of prognosis, both of these models in association with direct prediction strategy for long-term prediction of time series techniques are utilized to forecast the future values of machine operating condition. In this case, the number of available observations and the number of predicted steps are initially determined by false nearest neighbor method and auto mutual information technique, respectively. These values are subsequently utilized as inputs for prediction models. The performance of the proposed prognosis system is then evaluated by using real trending data of a low methane compressor. A comparative study of the predicted results obtained from CART and ANFIS models is also carried out to appraise the prediction capability of these models. The results of the proposed methods in both cases indicate that CART and ANFIS offer a potential for machine fault diagnosis and for condition prognosis.
Źródło:
Control and Cybernetics; 2010, 39, 1; 25-55
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing control by robustly feasible model predictive control and application to drinkingwater distribution systems
Autorzy:
Tran, V. N.
Brdys, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/91723.pdf
Data publikacji:
2011
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
optimizing
model predictive control
MPC
Robustly Feasible MPC
RFMPC
Drinking
Water Distribution Systems
DWDS
genetic algorithm
Opis:
The paper considers optimizing Model Predictive Control (MPC) for nonlinear plants with output constraints under uncertainties. Although the MPC technology can handle the constraints in the model by solving constraint model based optimization task, satisfying the plant output constraints under the model uncertainty still remains a challenge. The paper proposes Robustly Feasible MPC (RFMPC), which achieves feasibility of the outputs in the controlled plant. The RFMPC which is applied to control quantity in Drinking Water Distribution Systems (DWDS) is illustrated by application to the DWDS example. In the simulation exercise, Genetic Algorithm is selected as the optimization solver and the reduced search space methodology is applied in the implementation under MATLABEPANET environment.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2011, 1, 1; 43-57
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anomalous Magnetic Properties of URuGa
Autorzy:
Tran, V. H.
Troć, R.
Powiązania:
https://bibliotekanauki.pl/articles/1964580.pdf
Data publikacji:
1997-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.15.Qm
75.40.Cx
75.80.+q
Opis:
We present data of the magnetic susceptibility χ(T) and electrical resistivity ρ(T) for the hexagonal URuGa (space group P6̅2m). Below 7 K, χ increases rapidly and the data can be described by the expression χ(T) = χ(0)(1-a√T). ρ(T) in zero field follows the activated form: ρ(T)∼ exp(E$\text{}_{a}$/2k$\text{}_{B}$T ) with E$\text{}_{a}$ = 1.9 meV. In an applied magnetic field of 1 T, the resistivity varies as ρ(T)∼ bT. Between 18 and 250 K the resistivity is linear in -lnT and consistent with a Kondo-like effect.
Źródło:
Acta Physica Polonica A; 1997, 92, 2; 299-302
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hybridization Effects in UCu$\text{}_{5-x}$Au$\text{}_{x}$ Compounds
Autorzy:
Tran, V. H.
Troć, R.
Powiązania:
https://bibliotekanauki.pl/articles/1929857.pdf
Data publikacji:
1994-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.28.+d
Opis:
We review the results of bulk and neutron diffraction measurements on the UCu$\text{}_{5-x}$Au$\text{}_{x}$ system crystallizing in the cubic AuBe$\text{}_{5}$-type structure. The observed properties may be understood in the light of competition between Kondo effect and RKKY exchange interactions. Effects of 5f-ligand hybridization between the U-atoms occupying the 4a-sites and the Au- or/and Cu-atoms placed at the 4c- and 16e-positions, respectively, are supposed to be different. We show that the prefential occupation of 4c-sites by Au has a marked effect on the magnetic properties of the investigated system.
Źródło:
Acta Physica Polonica A; 1994, 85, 2; 287-292
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transport Properties of the U$\text{}_{1-x}$Th$\text{}_{x}$Pt System
Autorzy:
Tran, V. H.
Troć, R.
Powiązania:
https://bibliotekanauki.pl/articles/2013010.pdf
Data publikacji:
2000-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.15.Eb
72.15.Gd
75.70.Pa
Opis:
We present the results of measurements of electrical resistivity (ρ(T)) and magnetoresistance (Δϱ/ϱ$\text{}_{0}$(T)) on the solid solutions U$\text{}_{1-x}$Th$\text{}_{x}$Pt (x=0-0.8). The Curie temperature (T$\text{}_{c}$=21 K) found for the parent compound UPt, is steadily reduced upon the Th-substitution. The ρ(T) and Δϱ/ϱ$\text{}_{0}$(T) functions provide evidence of electron scattering due to spin fluctuations. The most interesting feature of Δϱ/ϱ$\text{}_{0}$ is its high value of about -22% found for UPt and U$\text{}_{0.9}$Th$\text{}_{0.1}$Pt at their T$\text{}_{c}$ and B=8 T. For samples with x ≥ 0.2, the value of Δϱ/ϱ$\text{}_{0}$ at 4 K and 8 T increases with x and becomes positive for Th-composition x >= 0.6.
Źródło:
Acta Physica Polonica A; 2000, 97, 3; 399-402
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
$Ru_3Sn_7$: Phonon Reference for Superconducting $Mo_3Sb_7$
Autorzy:
Tran, V.
Miiller, W.
Powiązania:
https://bibliotekanauki.pl/articles/1810300.pdf
Data publikacji:
2009-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
65.40.-b
72.15.Eb
74.25.Kc
74.25.Bt
72.15.Qm
Opis:
In order to search for phonon reference for dimer-gapped superconducting $Mo_3Sb_7$, measurements of specific heat $(C_p(T))$ and electrical resistivity (ρ(T)) of $Ru_3Sn_7$ were performed in the temperature range 2-300 K. The phonon part of $C_p(T)$ and ρ(T) of $Ru_3Sn_7$ can satisfactorily be explained describing the spectrum with one Einstein and two Debye modes. We found $Θp_{E}$ ≈ 100 K, $Θp_{D1}$ ≈ 185 K and $Θp_{D2}$ ≈298 K. The magnetic specific heat of $Mo_3Sb_7$ exhibits a sharp maximum at T*= 50 K, below which follows a gap function. Magnetic resistivity increases as -lnT with decreasing temperature and shows maximum at T*.
Źródło:
Acta Physica Polonica A; 2009, 115, 1; 83-85
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Phase Transition in $CePd_{2}P_{2}$
Autorzy:
Tran, V.
Bukowski, Z.
Tran, L.
Zaleski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1371474.pdf
Data publikacji:
2014-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.40.Cx
75.40.Gb
71.27.+a
Opis:
The tetragonal $CePd_{2}P_{2}$ compound has been investigated by ac magnetic susceptibility and dc magnetization measurements. The experimental data reveal a ferromagnetic phase transition at $T_{C}$=28.4± 0.2 K. Using Arrot-Noakes plot and scaling laws for a second-order phase transition, critical exponents for the ferromagnetic transition in the system were obtained. The critical exponents are located between those of the mean field and Heisenberg model values.
Źródło:
Acta Physica Polonica A; 2014, 126, 1; 334-335
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-Fermi-Liquid State in $URu_{0.68}Pd_{0.32}Ge$
Autorzy:
Tran, V.
Gralak, D.
Powiązania:
https://bibliotekanauki.pl/articles/1385459.pdf
Data publikacji:
2015-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.27.+a
75.30.Mb
75.40.Cx
75.45.+j
Opis:
We report the measurements of dc-magnetization (M), specific heat $(C_{p})$ and electrical resistivity (ρ) of an intermetallic $URu_{0.68}Pd_{0.32}Ge$, that lies at the border between nonmagnetic and magnetic regimes in the magnetic phase diagram of solid solutions $URu_{1-x}Pd_{x}Ge$. The studied composition shows enhanced dc-magnetic susceptibility χ(T) and the Sommerfeld ratio $C_{p}(T)$/T at low temperatures. Below 4 K χ(T), $C_{p}(T)$/T and ρ(T) can be described by χ(T) ∝ $T^{-0.48}$, $C_{p}(T)$/T ∝ √T and ρ(T) ∝ c ln(T)+$AT^{3/2}$, respectively. These observations provide an evidence that $URu_{0.68}Pd_{0.32}Ge$ is a moderately heavy-fermion system with an electronic ground state of non-Fermi liquid character. We found non-linear effect of the magnetization and a large value of the Wilson ratio, which are consistent with the interpretation in terms of magnetic instability.
Źródło:
Acta Physica Polonica A; 2015, 127, 2; 312-314
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Characterization of the Superconductor $Mo_3Sb_7$
Autorzy:
Tran, V.
Bukowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1812274.pdf
Data publikacji:
2008-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.25.Bt
74.70.-b
Opis:
We synthesized a polycrystalline sample of the superconductor $Mo_3Sb_7$ and characterized its basic properties by measurements of magnetization, electrical resistivity and specific heat. The measurements establish a superconducting phase transition at $T_c$=2.25 (0.05) K. In applied magnetic fields, the magnetization and resistivity show the behavior of type-II superconductor. From the specific heat measurement, the electronic specific heat coefficient,γ, specific heat jump at $T_c,$ $ΔC(T_c)//γT_c,$ and the Debye temperature $Θ_D$, are evaluated to be 34.5 mJ/(mol $K^2$), 1.56 and 283 K, respectively. From analysis of the specific heat data we suggest that this compound belongs to an intermediate strong coupling regime in the BCS context. The observed enhancement in theγ-value suggests a substantial contribution of Mo-4d-electrons to the density of states. Our experimental data do not support interpretation of superconductivity in $Mo_3Sb_7$ in terms of neither unconventional superconductivity or spin fluctuations proposed previously.
Źródło:
Acta Physica Polonica A; 2008, 114, 1; 67-74
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unusual Electron Transport Properties of $U_{0.05}Y_{0.95}Al_2$
Autorzy:
Tran, V.
Powiązania:
https://bibliotekanauki.pl/articles/1813710.pdf
Data publikacji:
2008-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.15.Jf
72.15.Qm
Opis:
We report a detailed study of the resistivity (ρ(T)) and thermoelectric power (S(T)) of the alloy $U_{0.05}Y_{0.95}Al_2$, which crystallises in the cubic $MgCu_2$-type structure. The resistivity is found to follow ρ(T) ∝ ln T between 15 and 40 K and a quasi-linear temperature dependence $-T^{1.16}$ for T <10 K. At a magnetic field of 9 T a Kondo-type maximum occurs in the resistivity data at 7 K, below which the Fermi liquid behaviour (ρ(T) ∝ $T^2$) is recovered. S(T)/T shows a $T^{0.5}$ power law for T <12 K. The low-temperature unconventional features observed in $U_{0.05}Y_{0.95}Al_2$ are presumably due to the presence of the two-channel Kondo effect.
Źródło:
Acta Physica Polonica A; 2008, 113, 1; 387-390
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adsorption and Desorption Characteristics and Purification of Isoflavones from Crude Soybean Extract Using Macroporous Resins
Autorzy:
Tran, Thi N.
Bui, Xuan V.
Loan, Nguyen T.
Anh, Nguyen H.
Le, Truong D.
Truong, Thi M.
Powiązania:
https://bibliotekanauki.pl/articles/2051036.pdf
Data publikacji:
2022-06-09
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
soybean isoflavones
macroporous resin
purification
adsorption and desorption characteristics
daidzin
genistin
Opis:
Isoflavones in soybean have been well-known with many health-promoting effects on humans. This study aimed to purify isoflavones from the crude soybean extract by the static adsorption/desorption process on macroporous resins. A screening test of four commercial resins: D101, AB-8, Amberlite(R) XAD4, and Diaion HP20 according to their adsorption/desorption characteristic for isoflavones was investigated. All four resins showed high adsorption and desorption characteristics in which D101 resin was chosen as the most suitable resin for purifying isoflavones. Compositional analysis showed that daidzin and genistin were the main isoflavones in the crude soybean extract. The adsorption isotherms data of total isoflavones, daidzin, and genistin fitted well with the Langmuir model with R2>0.98. The dynamic adsorption conditions for the purification process of isoflavones on the D101 resin-packed column were selected at the bed volume (BV) of 200 mL, feed volume of 3.75 BV, and flow rate of 1.5 BV/h. The dynamic desorption was carried out with the elution solution of 70% (v/v) ethanol, elution volume of 2.5 BV, and flow rate of 1 BV/h. The total isoflavone content in the purified extract was 8.70-fold higher than its initial content in the crude soybean extract with a recovery yield of nearly 80%. The study results reveal a strong possibility for large-scale production of isoflavones for further application in functional food products or pharmaceutical products.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2022, 72, 2; 183-192
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The accumulation of SA- and JA-signaling pathways in the response of Glycine max cv. “Nam Dan” to infestation by Aphis craccivora
Autorzy:
Tran, N.T.
Tran, T.T.H.
Do, N.D.
Mai, V.C.
Powiązania:
https://bibliotekanauki.pl/articles/66714.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phytohormone
signal molecule
physiological process
plant
environmental stress
aphid
plant protection
Glycine max
infestation
Aphis craccivora
cowpea aphid
black legume aphid zob.cowpea aphid
true bug
defense response
jasmonic acid
salicylic acid
Opis:
Phytohormones function as signal molecules that regulate physiological processes to protect plants from environmental stresses, including aphids’ attack. We studied the pattern within the defense mechanisms of soybean [Glycine max (L.) Merr. cv. “Nam Dan”] regarding the signaling pathways of salicylic acid (SA), and jasmonic acid (JA) in response to cowpea aphid (Aphis craccivora Koch). With infestation by cowpea aphid, SA was the first to accumulate and reached high levels 24 hours post-infestation (hpi). An accumulation of SA in the early response of soybean probably triggers inducible specific defense reactions. Following SA, JA was later induced and continuously increased to high levels 96 hpi. An accumulation of JA in the later response may be a critical step in the signaling of the downstream defense cascade. In addition, phenylalanine ammonia-lyase (PAL, EC 4.3.1.24) and benzoic acid 2-hydroylase (BA2H), enzymes involved in the biosynthesis of SA, and lipoxygenase (LOX, EC 1.13.11.12), an important enzyme in the JA biosynthesis pathway, were also induced by cowpea aphid. The changes in the enzymatic activity of PAL, BA2H and LOX, and expression of gene encoding PAL were closely associated with the accumulation of endogenous SA and JA, respectively. The variations in the levels of these defense-related compounds were strongly connected with density and the duration of cowpea aphid infestation. Different accumulations of SA- and JA-signaling pathways may contribute to a coordinated regulation leading to the formation of resistant lines in the defense mechanisms of G. max cv. “Nam Dan” against A. craccivora.
Źródło:
Journal of Plant Protection Research; 2017, 57, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiple neural network integration using a binary decision tree to improve the ECG signal recognition accuracy
Autorzy:
Tran, H. L.
Pham, V. N.
Vuong, H. N.
Powiązania:
https://bibliotekanauki.pl/articles/331348.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
neural classifiers
integration of classifiers
decision tree
arrhythmia recognition
Hermite basis function decomposition
klasyfikatory neuronowe
drzewo decyzyjne
rozpoznawanie arytmii
Opis:
The paper presents a new system for ECG (ElectroCardioGraphy) signal recognition using different neural classifiers and a binary decision tree to provide one more processing stage to give the final recognition result. As the base classifiers, the three classical neural models, i.e., the MLP (Multi Layer Perceptron), modified TSK (Takagi–Sugeno–Kang) and the SVM (Support Vector Machine), will be applied. The coefficients in ECG signal decomposition using Hermite basis functions and the peak-to-peak periods of the ECG signals will be used as features for the classifiers. Numerical experiments will be performed for the recognition of different types of arrhythmia in the ECG signals taken from the MIT-BIH (Massachusetts Institute of Technology and Boston’s Beth Israel Hospital) Arrhythmia Database. The results will be compared with individual base classifiers’ performances and with other integration methods to show the high quality of the proposed solution.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2014, 24, 3; 647-655
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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