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Wyszukujesz frazę "Chew, L." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Impact of culture vessels on micro-morphological features of in vitro Dendrobium Sabin Blue orchid
Autorzy:
Malik, A.N.A.
Uddain, J.
Chin, C.K.
Chew, B.L.
Antony, J.J.J.
Parab, A.R.
Subramaniam, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096256.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alternative culture vessel
orchid
in vitro culture
protocorm-like bodies (PLBs)
Opis:
Different designs of the plant tissue culture vessel, such as size, material, and shape, may alter its microenvironment atmosphere. The present study was conducted on protocorm-like bodies (PLBs) of Dendrobium Sabin Blue orchid to determine the development of PLBs on plastic and glass culture vessels of different sizes. PLBs were cultured in half-strength Murashige and Skoog (MS) medium with the same initial weight of 0.5 g in 10 replicates. The growth index of the PLBs was calculated after 11 weeks to study their growth in every vessel; additionally, biochemical analysis was performed to determine carbohydrate content, proline concentration, and photosynthesis pigments in the PLBs. Scanning electron microscopy (SEM) was performed to study stomata development on PLBs in each vessel, and histological analyses were conducted to study the cell structure. Overall, the PLBs cultured in a large 470 ml plastic vessel showed successful growth with a high growth index, high carbohydrate content, low-stress condition, and high chlorophyll content. SEM confirmed that the presence of trichome and rhizoid in PLBs cultured in the 470 ml plastic vessel. Histological analysis showed the formation of the shoot on the PLBs and the presence of starch granules. Thus, the use of plastic as a culture vessel provides a good impact for culturing PLBs and has low cost.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 1; 41-52
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implicit solution of 1d nonlinear porous medium equation using the four-point Newton- EGMSOR iterative method
Autorzy:
Chew, J. V. L.
Sulaiman, J.
Powiązania:
https://bibliotekanauki.pl/articles/122819.pdf
Data publikacji:
2016
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
porous medium equation
finite difference scheme
Newton method
Explicit Group
MSOR
równania różniczkowe cząstkowe
metoda różnic skończonych
metoda Newtona
Opis:
The numerical method can be a good choice in solving nonlinear partial differential equations (PDEs) due to the difficulty in finding the analytical solution. Porous medium equation (PME) is one of the nonlinear PDEs which exists in many realistic problems. This paper proposes a four-point Newton-EGMSOR (4-Newton-EGMSOR) iterative method in solving 1D nonlinear PMEs. The reliability of the 4-Newton-EGMSOR iterative method in computing approximate solutions for several selected PME problems is shown with comparison to 4-Newton-EGSOR, 4-Newton-EG and Newton-Gauss-Seidel methods. Numerical results showed that the proposed method is superior in terms of the number of iterations and computational time compared to the other three tested iterative methods.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2016, 15, 2; 11-21
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Origin of parautochthonous Polish moldavites : a palaeogeographical and petrographical study
Autorzy:
Szopa, K.
Badura, J.
Brachaniec, T.
Chew, D.
Karwowski, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/191842.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Polish tektites
redeposition
river terrace
Miocene
Pleistocene
drainage basin
Opis:
In this article, the most recent moldavite discoveries in Poland and their host sediments are characterised and discussed. They were discovered at Lasów, located about 8 km north of Zgorzelec (Poland) and Görlitz (Germany), about 700 m from the Polish-German border, close to the Lusatian Neisse (Nysa) River. The tektites were collected from Vistulian (Wiechselian) glacial age sand and gravel of a closed quarry pit, associated with the river terraces. In the Lasów area, the moldavite-bearing sediments are Pleistocene in age and represent Lusatian Neisse terrace deposits. They were redeposited from the upper part of the drainage basin of the Lusatian Neisse, probably washed out from the Miocene sediments that filled the Zittau Depression, the Berzdorf–Radomierzyce Depression, the Višňová Depression and the tectonically uplifted Izera Mts. and Działoszyn Depression. The erosion of Miocene deposit occured on a large scale in the uplifted foothills of the Upper Miocene Izera, Lusatia and Kaczawa complexes. The sediment cover was removed from the Działoszyn Depression. The drainage basin of the Lusatian Neisse is the area where moldavites were formed by the Nördlinger Ries impact. The source area of moldavite is the same for the Miocene deposits around Gozdnica, as well as for the Pleistocene sediments at Lasów.
Źródło:
Annales Societatis Geologorum Poloniae; 2017, 87, 1; 1-12
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quartic non-polynomial spline solution for solving two-point boundary value problems by using Conjugate Gradient iterative method
Autorzy:
Justine, H.
Chew, J. V. L.
Sulaiman, J.
Powiązania:
https://bibliotekanauki.pl/articles/122546.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
two-point boundary value problems
quartic non-polynomial spline
Conjugate Gradient
Successive Over-Relaxation
Gauss-Seidel
dwupunktowe problemy brzegowe
metoda gradientu sprzężonego
metoda Gaussa-Seidela
metoda iteracyjna
Opis:
Solving two-point boundary value problems has become a scope of interest among many researchers due to its significant contributions in the field of science, engineering, and economics which is evidently apparent in many previous literary publications. This present paper aims to discretize the two-point boundary value problems by using a quartic non-polynomial spline before finally solving them iteratively with Conjugate Gradient (CG) method. Then, the performances of the proposed approach in terms of iteration number, execution time and maximum absolute error are compared with Gauss-Seidel (GS) and Successive Over-Relaxation (SOR) iterative methods. Based on the performances analysis, the two-point boundary value problems are found to have the most favorable results when solved using CG compared to GS and SOR methods.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 1; 41-50
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Quantum Signature of Chaos through the Dynamics of Entanglement in Classically Regular and Chaotic Systems
Autorzy:
Chew, L.
Chung, N.
Powiązania:
https://bibliotekanauki.pl/articles/1492762.pdf
Data publikacji:
2011-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
05.45.Mt
03.67.Bg
03.67.Mn
Opis:
We demonstrate the dependence of the entanglement dynamics on the global classical regime of regular, mixed and chaotic dynamics with initial squeezed coherent states. By squeezing the initial states, we are able to enhance or suppress the entanglement entropy of the dynamically generated quantum states relative to those produced via initial coherent states. This suggests the possibility of exploiting a judicious selection of initial squeezed states to create quantum states with enhanced entanglement entropy dynamically for the purpose of robust quantum information processing.
Źródło:
Acta Physica Polonica A; 2011, 120, 6A; A-095-A-099
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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