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Tytuł:
Electrical and Interfacial Properties of p-Si/P3HT Organic-on-Inorganic Junction Barrier
Autorzy:
Yakuphanoglu, F.
Shah, M.
Aslam Farooq, W.
Powiązania:
https://bibliotekanauki.pl/articles/1493722.pdf
Data publikacji:
2011-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.07.Pr
78.40.Me
Opis:
The electrical characterization of the Al/p-Si/P3HT/Ag organic-on-inorganic diode was done by current-voltage, capacitance-voltage and conductance-voltage methods. The values of ideality factor and barrier height of the diode were determined from the current-voltage characteristics and found as 2.32 and 0.77 eV, respectively. These values were also determined from Cheung's functions and Norde's method due to the non-ideal behavior of the diode. The electronic parameters obtained from the various methods indicate a good consistency with each other. The density of interface states for Al/p-Si/P3HT/Ag organic-on-inorganic diode was found to be $7.64 × 10^{10} cm^{-2} eV^{-1}$. The obtained electrical parameters of the Al/p-Si/P3HT/Ag organic-on-inorganic diode are higher than that of the conventional Ag/p-Si Schottky diodes. This indicates that the electrical properties of the silicon Schottky diodes can be controlled using organic interfacial layer.
Źródło:
Acta Physica Polonica A; 2011, 120, 3; 558-562
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power Loss Reduction With Optimal Size And Location Of Capacitor Banks Installed At 132 kv Grid Station Qasimabad Hyderabad
Autorzy:
Katyara, S.
Shah, M. A.
Iżykowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/410606.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
capacitor bank
power loss
voltage profile
distribution system
MATLAB
Opis:
With Growing Concerns About Voltage Profile And Power Factor At Distribution Networks, The Capacitor Banks Are Invariably Installed For Reactive Power Compensation. The Reactive Power Supplied By Capacitor Banks Is Proportional To Square Of Their Rated Loading Voltage. Capacitor Banks Eventually Increase The Loading Capacity Of Feeders, So As To Supply More Customers Through Same Line Section. Capacitor Banks Can Be Installed Anywhere On The Network. The Idea Of This Paper Is To Reduce Total Power Loss And Ensure Greater Availability Of Capacitor Bank Installed At 132 Kv Grid Station Qasimabad Hyderabad, For Reactive Power Compensation, Even Under Worst Conditions On Distribution System. This Is Achieved By Enhancing Its Location And Size. At Present Capacitor Bank Of Full Size, I.E. Of 1.21 Mvar Is Installed At 11 Kv Bus Of 132 Kv Grid Station Qasimabad Hyderabad. Moreover This Paper Suggests Small Sized Capacitor Banks That Would Be Installed At Different Feeders Instead Of One Large Size Capacitor Bank At 11 Kv Bus. The Voltage Profile And Power Losses With Present Sized Capacitor Bank And The Proposed Small Sized Capacitor Banks Are Compared In This Work. The Distribution Network Has Been Simulated By Using MATLAB .
Źródło:
Present Problems of Power System Control; 2016, 7; 53-64
2084-2201
Pojawia się w:
Present Problems of Power System Control
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Characterization of Cu(II), Ni(II) and Co(II) Based Schiff Base Complexes
Autorzy:
Bhalu, A.
Vilapara, K.
Maru, M.
Shah, M.
Powiązania:
https://bibliotekanauki.pl/articles/412444.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
schiff base
metal complexes
Opis:
N-(3-Bromo-4-hydroxy-5-methoxybenzylidene)-4-Bromobenzenamine was synthesized. This was further used to synthesize Co(II), Ni(II) and Co(II) based metal complexes and characterized by FT-IR, Elemental analysis, ESI Mass and UV spectroscopy.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 12; 51-55
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frequency Dependent Electrical Characteristics οf Au/n-Si/CuPc/Au Heterojunction
Autorzy:
Ahmad, Z.
Sayyad, M.
Karimov, Kh.
Saleem, M.
Shah, M.
Powiązania:
https://bibliotekanauki.pl/articles/1538707.pdf
Data publikacji:
2010-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
79.60.Jv
73.90.+f
Opis:
Electrical characteristics of the heterojunction fabricated by thermal deposition of copper phthalocyanine (CuPc) on an n-silicon substrate have been investigated. The frequency has significant effect on capacitance (C), conductance (G) and series resistance $(R_{s})$ interface states $(D_{it})$ of the junction. Measured capacitance and conductance were corrected for $R_{s}$. The conductance technique was used to measure the density of the interface states. This method revealed the value of the interface state density distribution for the Au/n-Si/CuPc/Au interfaces of the order of $10^{12} cm^{-2} eV^{-1}$.
Źródło:
Acta Physica Polonica A; 2010, 117, 3; 493-496
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, characterization and analytical applications of chelating resin containing orcinol
Autorzy:
Shah, B. A.
Shah, A. V.
Patel, N. B
Shah, M.
Powiązania:
https://bibliotekanauki.pl/articles/779773.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
separacja analityczna
żywice chelatujące
kopolimery
wymiana
analytical separation
chelating resin
column operation
copolymer
exchange capacity
Opis:
A chelating resin based on Salicylic acid-Formaldehyde copolymer, containing Orcinol (SFO), has been synthesized and characterized on the basis of Elemental Analysis, Particle Size Distribution, FT-IR Analysis, XRD, SEM and Optical Photographs. The Physico-Chemical properties have been studied. This resin is highly stable in acidic and alkaline solutions and has been studied as a chelating sorbent for heavy metal ions and transition metal ions. The Exchange capacity order is Ni(II) > Cu(II) > Zn(II) > Cd(II) > Pb(II). The effect of nature and concentration of different electrolytes on distribution coefficient (Kd) for metal ions have been investigated. Separation of synthetic mixtures containing Cu(II)-Pb(II), Ni(II)-Cd(II) and Brass constituents has been carried out using a column prepared from the synthesized chelating resin. The developed procedure was also tested for the removal of Cd(II) and Pb(II) from natural water of Purna River near by Navsari, Gujarat, India. Keywords
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 2; 88-96
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reusable Nanocatalyst: Zirconia and Sulfated Zirconia
Autorzy:
Gondaliya, M. B.
Maheta, T.
Mamtora, M. J.
Shah, M. K.
Powiązania:
https://bibliotekanauki.pl/articles/411589.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Nanocatalyst
nanoparticles
Sulfated Zirconia
synthesis
Benzodiazepines
solid catalyst
solvent-free
green chemistry
Opis:
1,5-benzodiazepines have been synthesized by Nano Zirconia and Nano Sulfated Zirconia in solvent free conditions. Synthesis was carried out by conventional as well as microwave method. Benzodiazepines were synthesized by reacting o-phenylenediamine and few ketones in the presence of catalytic amount of Nanoparticles. Particles used were sized in between 53-100 nm. Nanoparticles were characterized by FT-IR, DLS and powder XRD analysis.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 17, 3; 295-302
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and antimicrobial screening of some new pyrimido[1,2-a]benzimidazole derivatives
Autorzy:
Shah, N. M.
Joshi, H. S.
Powiązania:
https://bibliotekanauki.pl/articles/411967.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
2-aminobenzimidazole
pyrimido[1,2-a]benzimidazole
chalcone
antimicrobial activity azoloazine
Opis:
Some new pyrimido[1,2-a]benzimidazole derivatives were synthesized by reacting 2-amino benzimidazole and chalcones in n-butanol at reflux temperature. In our present study we have used various heterocyclic chalcones derived from furfural and substituted acetophenones. All synthesized compounds were characterized by IR, 1H NMR and Mass spectroscopy. All synthesized compounds were screened for their antimicrobial activity against gram positive and gram negative bacteria which showed moderate to good activity.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 6; 56-60
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Essential role of the BRCA2B gene in somatic homologous recombination in Arabidopsis thaliana
Autorzy:
Amritha, P.P.
Shah, J.M.
Powiązania:
https://bibliotekanauki.pl/articles/28825293.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 4; 371-380
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental and numerical determination of apparent mass variation of granular media confined in silo geometry
Autorzy:
Qadir, Abdul
Ispalove, Nurlybek
Ali, Asim
Chand, R.
Shah, M.
Khan, Asif
Hussain, Kashif
Powiązania:
https://bibliotekanauki.pl/articles/1070521.pdf
Data publikacji:
2016-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
83.80.Fg
45.70.Cc
45.70.-n
Opis:
Granular materials have vast applications both in industry and in daily life. They display quite interesting and exceptional properties different from the other known forms of matter. To investigate the complex properties of particulate materials, experimental, analytical, and numerical techniques have been employed. In this paper the results of experimental and numerical tests of various grain sizes and coefficient of friction between granules and cylindrical walls on the mass measured at bottom of container, known as apparent mass, are reported. It is revealed that apparent mass augments with the grain size. Moreover, it is also found that the variation in apparent mass measurement is strongly dependent on bead diameter rather than the silo size. The results suggest that the conversion of vertical stresses into horizontal in silo is mainly due to the friction between the grain and system boundary than the arching phenomenon.
Źródło:
Acta Physica Polonica A; 2016, 129, 3; 378-382
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 25

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