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Wyszukujesz frazę "El-Abd, M." wg kryterium: Autor


Tytuł:
On the hybridization of the artificial Bee Colony and Particle Swarm Optimization Algorithms
Autorzy:
El-Abd, M.
Powiązania:
https://bibliotekanauki.pl/articles/91658.pdf
Data publikacji:
2012
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
Artificial Bee Colony Algorithm
ABC
particle swarm optimization (PSO)
PSO
hybridization
hybrid algorithm
CEC05
Opis:
In this paper we investigate the hybridization of two swarm intelligence algorithms; namely, the Artificial Bee Colony Algorithm (ABC) and Particle Swarm Optimization (PSO). The hybridization technique is a component-based one, where the PSO algorithm is augmented with an ABC component to improve the personal bests of the particles. Three different versions of the hybrid algorithm are tested in this work by experimenting with different selection mechanisms for the ABC component. All the algorithms are applied to the well-known CEC05 benchmark functions and compared based on three different metrics, namely, the solution reached, the success rate, and the performance rate.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2012, 2, 2; 147-155
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of eggplant (Solanum melongena L.) to potassium and liquorice extract application under saline conditions
Reakcja bakłażana (Solanum melongena L.) na potas i ekstrakt z lukrecji w warunkach zasolenia
Autorzy:
El-Sayed Ramadan, M.
Abd El-Salam, O.
Abd El-Nobi, S.
Powiązania:
https://bibliotekanauki.pl/articles/11543438.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Eggplant (Solanum melongena L.) is one of the important summer vegetable crops of the Solanaceae family due to its high content of carbohydrates, protein and minerals i.e. N, P, K and Fe as well as vitamin C. The performance of Eggplant (Solanum melongena L.) to foliar spray with potassium (0, 1, 2 and 3 g·l-1) and liquorice extract (0, 2, 4 and 6 g·l-1) were investigated in summer 2013 and 2014 seasons at Ras Sudr research station farm, South Sinai governorate on a salinity soil under drip irrigation system. The effects of the experimental factors on plant growth parameters (height, leaf number, branch number, fresh and dry weight), leaf chlorophyll content, leaf minerals (N, P and K), yield parameters such as, fruit number/plant, fruit weight, total yield per feddan (0.42 ha) were evaluated. The results proved that the foliar application with potassium and liquorice extract produce a significant increase in all parameters under study compared to the control. The foliar application of 2 g·l-1 potassium plus 6 g·l-1 liquorice extract gave the highest values of vegetative growth, mineral values of the leaves, yield and its components.
Bakłażan (Solanum melongena L.) jest jedną z najważniejszych roślin letnich z rodziny Solanaceae ze względu na wysoką zawartość węglowodanów, protein i związków mineralnych, tzn. N, P, K i Fe oraz witaminy C. Latem 2013 i 2014 w gospodarstwie doświadczalnym na glebie zasolonej w warunkach systemu nawadniania w okręgu południowego Synaju badano zachowanie bakłażana (Solanum melongena L.) w reakcji na spryskiwanie potasem (0, 1, 2 i 3 g·l-1) i wyciągiem z lukrecji (0, 2, 4 i 6 g·l-1). Oceniono wpływ czynników doświadczenia na parametry wzrostu roślin (wysokość, liczba liści, liczba pędów, świeża i sucha masa), zawartość chlorofilu, związków mineralnych w liściach (N, P i K), parametry plonu, takie jak liczba owoców na roślinie, masa owocu, całkowity plon w przeliczeniu na feddan (0.42 ha). Rezultaty wykazały, że dolistne stosowanie potasu i wyciągu z lukrecji powoduje istotny wzrost wszystkich badanych parametrów w porównaniu z kontrolą. Dolistne łączne zastosowanie 2 g·l-1 potasu oraz 6 g·l-1 wyciągu z lukrecji dało największe wartości wzrostu wegetatywnego, zawartości związków mineralnych w liściach, plonu i jego składników.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2016, 15, 6; 279-290
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural Analysis of Some Alkali Diborate Glasses
Autorzy:
Saddeek, Y.
Gaafar, M.
Abd El-Aal, N.
Abd El-Latif, L.
Powiązania:
https://bibliotekanauki.pl/articles/1807784.pdf
Data publikacji:
2009-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.43.Fs
62.30.+d
65.60.+a
Opis:
This manuscript presents a theoretical analysis of the correlation between the computed bulk modulus and the structure of a series of multicomponent sodium diborate based glasses in terms of the bond compression model. The main parameters in the analysis were the computed elastic moduli, the average stretching force constant and the average atomic ring size. These parameters were calculated for every glass series and for every glass composition. The results showed that the average force constant and the elastic moduli of these glasses are sensitive to the decrease in the sodium diborate content. This behaviour was attributed to the increase in the molar volume, and to the role of the different modifiers.
Źródło:
Acta Physica Polonica A; 2009, 116, 2; 211-216
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Back to nature: henna extracts from nanotech to environmental biotechnology – a review
Autorzy:
Abd-El-Haleem, D.A.M.
Powiązania:
https://bibliotekanauki.pl/articles/28825290.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 4; 421-434
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High Performance of Electroacoustic Piezoelectric Ceramic Transducers
Autorzy:
Abd El-Ati, M. I.
Mosaad, M. M.
El-Baradie, B.Y.
Powiązania:
https://bibliotekanauki.pl/articles/1920644.pdf
Data publikacji:
1992-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.35.+d
77.60.+v
Opis:
Lead zirconate-titanate containing 1 wt % niobium with different Zr/Ti ratios compositions were studied. A pronounced increase in densification during sintering process occurred near tetragonal-rhombohedral phase. Dielectric constant of polarized and unpolarized samples was studied. The rotation of all 90° domains to their original positions caused the more looseness of Ti$\text{}^{4+}$ and Zr$\text{}^{4+}$ in the octahedral configuration leading to greater polarization in the tetragonal structure, thus leading to, higher dielectric constant. Near the phase change, the minimum resonance frequency caused the minimum values of ultrasonic waves, which were emitted from the edge of the polarized ceramic transducers.
Źródło:
Acta Physica Polonica A; 1992, 81, 4-5; 527-533
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reflection Electron Energy Loss Spectroscopy of Alkali Metals on Silicon
Autorzy:
Kleint, Ch.
Abd El-Halim, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/1892213.pdf
Data publikacji:
1992-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.20.-r
79.20.Fv
79.20.Hx
Opis:
In an extended introduction studies of alkali adsorption on clean silicon surfaces are shortly reviewed and recent achievements are outlined. The main part describes our investigations of lithium and potassium adsorption by reflection electron energy loss spectroscopy (REELS). Beside (electronic) valence electron excitations also core losses of both silicon and these alkali metals were observed in the ionization loss spectroscopy mode (ILS). Additional information has been obtained by Auger electron spectroscopy (AES) and measurements of work function changes (WFC). The spectra of Li and K adsorption on the Si(100) plane show considerable differences which will be discussed in detail. By simulation of the REEL potassium spectra within the density of states (DOS) model using the Si(100)2 × 1 K DOS by R. Ramirez the origin of the 8.4 and 12.5 eV loss peaks can be traced to band structure features. In addition the known K peaks at 18.1, 20 and 22 eV are confirmed and their behaviour with increasing primary energy E$\text{}_{p}$, was investigated. While the K 3p-K 4s transition corresponding to the 18.1 eV loss increases with E$\text{}_{p}$, the dipole-forbidden K 3p-K 4p transition (20 eV) decreases. Shifts in the loss energy of these peaks as well as in the core loss energies at 295 and 296.8 eV are observed and explained by charge transfer.
Źródło:
Acta Physica Polonica A; 1992, 81, 1; 47-65
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Filters of lattices with respect to a congruence
Autorzy:
Sambasiva Rao, M.
El-Mohsen Badawy, Abd
Powiązania:
https://bibliotekanauki.pl/articles/729197.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
congruence
filter
closure operator
θ-filter
congruence lattice
Opis:
Some properties of filters on a lattice L are studied with respect to a congruence on L. The notion of a θ-filter of L is introduced and these filters are then characterized in terms of classes of θ. For distributive L, an isomorphism between the lattice of θ-filters of L and the lattice of filters of $L_{/θ}$ is obtained.
Źródło:
Discussiones Mathematicae - General Algebra and Applications; 2014, 34, 2; 213-219
1509-9415
Pojawia się w:
Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Extra Long Egyptian Yarn Tenacity Using Fibre Quality Index (MFQI)
Przewidywanie wytrzymałości własciwej przedz z ekstra długiej bawełny Egipskiej przy wykorzystaniu indeksu jakości przędzy
Autorzy:
El Messiry, M.
Mohsen Abd-Ellatif, S. A.
Powiązania:
https://bibliotekanauki.pl/articles/233377.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
staple yarn
fibres bundle
single fibres
Fibre Quality Index
SFC
MFQI
wytrzymałość pojedynczych włókien
wiązka włókien
pojedyncze włókna
Indeks Jakości Włókna
Opis:
Predicting the spun yarn tenacity from fibre properties is essential. The tenacity of spun yarns is one of the most important properties in determining the yarn quality, since it directly affects the winding, weaving and knitting production efficiency as well as the use of the fabric. Many research works tackled this subject trying to predict yarn properties from fibre properties. In this research work, a general review on the yarn tenacity topic was performed and a fibre quality index was developed and used for the prediction of yarn tenacity. A study on the potential of predicting yarn tenacity from single fibre tenacity and bundle fibre tenacity was presented, followed by the introduction of the MFQI as a viable factor for the prediction of yarn tenacity for ring and compact spun yarn. The results showed that Bundle fibre tenacity gives better results than single fibre tenacity in predicting the yarn tenacity. Index MFQI is proved to be highly correlated with the yarn tenacity.
Bardzo ważnym problemem jest przewidywanie wytrzymałości właściwej przędz na podstawie właściwości włókien. W pracy dokonano przeglądu metod oraz opracowano indeks jakości włókna służący do przewidywania wytrzymałości właściwej przędzy. Jakość przędzy oceniano na podstawie wytrzymałości pojedynczych włókien oraz wiązek włókien, a następnie omówiono indeks jakości przędzy jako odpowiednie narzędzie do przewidywania wytrzymałości klasycznych przędz obrączkowych i kompaktowych. Wyniki wskazują, że lepiej można przewidywać wytrzymałość przędzy na podstawie wytrzymałości wiązki włókien niż pojedynczego włókna.
Źródło:
Fibres & Textiles in Eastern Europe; 2013, 3 (99); 31-35
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Properties of Zinc Doped Ferrites
Autorzy:
Abd El-Ati, M. I.
Kafafy, Aziz M.
Tawfik, A.
Powiązania:
https://bibliotekanauki.pl/articles/1887816.pdf
Data publikacji:
1991-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Gg
75.50.Dd
Opis:
A series of samples of the system Co$\text{}_{1-x}$Zn$\text{}_{x}$Fe$\text{}_{2}$O$\text{}_{4}$ (x = 0.0, 0.3, 0.4, 0.5 and 0.8) have been prepared by the usual ceramic technique. X-ray analysis shows that they are cubic spinel (single phase). The lattice parameter a and the bulk density D are measured for the samples. The substitution experiments replacing Co$\text{}^{2+}$ by Zn$\text{}^{2+}$ furnish new significant fact concerning the magnetic behaviour of ferrites. The magnetic strength of the magnetic ions on the Band A-sites can be varried relative to each other by the substitution of Zn$\text{}^{2+}$. The increase of density of the composition increases the magnetic interaction of the dipole moment at the B-sites.
Źródło:
Acta Physica Polonica A; 1991, 79, 6; 889-894
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Field application of Clethodim herbicide combined with Trichoderma spp. for controlling weeds,root knot nematodes and Rhizoctonia root rot disease in two faba bean cultivars
Autorzy:
El-Dabaa, M.A,T.
Abd-El-Khair, H.
E;-Nagdi, W.M.A.
Powiązania:
https://bibliotekanauki.pl/articles/66487.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Clethodim herbicide (Cle) and three Trichoderma strains (Tri) were applied either alone or in combination (Cle + Tri) for controlling weeds, root knot nematodes (Meloidogyne arenaria) and Rhizoctonia root rot disease (Rhizoctonia solani) as well as for evaluating their effects on total microbial count in the rhizosphere and the number of Rhizobium nodules on roots in two faba bean cultivars cultivated in naturally heavily infested fields. The evaluated characters were very similar for the two tested cultivars (Nubariya 1 and Sakha 3). Treatment with Cle alone highly reduced the fresh and dry matter of tested weeds (Amaranthus viridis, Cynodon dactylon and Cenchrus ciliaris), followed by Cle + Tri and Tri alone. Cle + Tri highly reduced nematode parameters viz. numbers of J2 in soil or roots, females, eggs, galls and egg-masses when compared with each treatment alone. Tri alone caused a great decrease in Rhizoctonia root rot infection, followed by Cle + Tri and Cle alone. Total microbial count and Rhizobium nodules were affected only with Cle treatment. Plant growth parameters (shoot length, shoot fresh and dry weight and numbers of branches and leaves) and yield parameters (fresh pod and dry weight, seed number per pod, seed weight and ash pod weight of plant) were greatly improved for Cle + Tri treatments when compared with either Tri or Cle alone.
Źródło:
Journal of Plant Protection Research; 2019, 59, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bacillus-based biological control of cotton seedling disease complex
Autorzy:
Khiyami, M.A.
Omar, M.R.
Abd-Elsalam, K.A.
Abd El-Hady Aly, A.
Powiązania:
https://bibliotekanauki.pl/articles/65928.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
To formulate an efficient and eco-friendly strategy for the management of cotton seedling disease complex, pot experiments were conducted and the efficiency of eight Bacillus strains against seven fungi involved in the disease were determined. A greenhouse evaluation of the interaction between fungal isolates and Bacillus strains was carried out. The evaluation revealed a very highly significant Bacillus strains x fungal isolates interaction for all the following parameters: preemergence damping-off, postemergence damping-off, survival, plant height, and dry weight. This interaction implies that a single strain of the Bacillus sp. can be highly effective against a fungal isolate, but may have only minimal effects on other fungal isolates. The results of the present study demonstrated that Bacillus circulans and B. coagulans were the most effective strains in controlling cotton seedling disease. Therefore, strains of Bacillus spp. should be tested against as many fungal isolates as possible. The testing will improve the chance of identifying Bacillus strains effective against several fungal isolates.
Źródło:
Journal of Plant Protection Research; 2014, 54, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Weak solutions of fractional order differential equations via Volterra-Stieltjes integral operator
Autorzy:
El-Sayed, A. M. A.
El-Sayed, W. G.
Abd El-Mowla, A. A. H.
Powiązania:
https://bibliotekanauki.pl/articles/357800.pdf
Data publikacji:
2017
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
weak solution
mild solution
weakly Riemann-Stieltjes integral
function of bounded variation
Banach space
rozwiązanie całkowe
całka Riemanna-Stieltjesa
funkcja o ograniczonej zmienności
przestrzeń Banacha
Opis:
The fractional derivative of the Riemann-Liouville and Caputo types played an important role in the development of the theory of fractional derivatives, integrals and for its applications in pure mathematics ([18], [21]). In this paper, we study the existence of weak solutions for fractional differential equations of Riemann-Liouville and Caputo types. We depend on converting of the mentioned equations to the form of functional integral equations of Volterra-Stieltjes type in reflexive Banach spaces.
Źródło:
Journal of Mathematics and Applications; 2017, 40; 85-96
1733-6775
2300-9926
Pojawia się w:
Journal of Mathematics and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of melatonin, GA3 and NAA on vegetative growth, yield and quality of ‘Canino’ apricot fruits
Autorzy:
Abd El-Naby, S.K.M.
Abdelkhalek Ahmed Mohamed, M.
El-Naggar, Y.I.M.
Powiązania:
https://bibliotekanauki.pl/articles/12684291.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivar
apricot
Canino cultivar
fruit tree
fruit quality
fruit yield
vegetative growth
field experiment
gibberellic acid
melatonin
plant growth regulator
naphthaleneacetic acid
titratable acidity
total soluble solid
Opis:
A field experiment was carried out during 2017–2018 in the Horticulture Research Station farm in El Kanater El Khayreia, El Kalubeia Governorate, Egypt, to find out the response of foliar application of melatonin, GA3 and NAA on vegetative and fruit attributes of ‘Canino’ apricot. Different plant growth regulators influenced all variable parameters related to vegetative growth and fruit. Results revealed that between all growth regulators, the foliar application of melatonin following by GA3 there was the highest vegetative growth as compared to other treatments, while GA3 gave the highest yield following by melatonin as compared to other treatments. Treatment with NAA improved vegetative growth, yield and fruit quality to a lesser extent as compared to the control.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 3; 167-178
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on a low energy plasma focus discharge
Autorzy:
Allam, T. M.
Abd El-Latif, S. T.
Soliman, H. M.
Powiązania:
https://bibliotekanauki.pl/articles/146872.pdf
Data publikacji:
2007
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
plasma focus
plasma sheath dynamics
magnetic force
focusing action
Opis:
This paper is devoted to the experimental and theoretical study of plasma current sheath behavior for a low energy plasma focus device operating at a filling nitrogen gas pressure of 3.3 torr, and at a stored energy of 1.2 kJ. Axial distribution profiles of plasma current sheath (PCS) characteristics such as propagation velocity Vz, acceleration az, azimuthal magnetic field induction Btheta, and magnetic force per unit volume Fz/m3 along the coaxial electrodes system was performed from a magnetic probe and miniature Rogovsky coil signals. The experimental results showed that the axial distribution of Vz, az, Btheta and Fz has approximately the same profile and the maximum value of these parameters was detected nearly at a mid-distance of coaxial electrodes system. Theoretical description of PCS dynamics at the axial phase, based on a snowplough, was estimated as a function of discharge time. These data were compared with the received experimental results.
Źródło:
Nukleonika; 2007, 52, 3; 87-91
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł

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