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Wyszukujesz frazę "Shah, M." wg kryterium: Autor


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
Tytuł:
Assessment of Eco-Friendly Natural Antimicrobial Textile Finish Extracted from Aloe Vera and Neem Plants
Ocena ekologicznych naturalnych preparacji antymikrobowych tekstyliów uzyskanych z udziałem ekstraktów z aloesu i miodli indyjskiej
Autorzy:
Khurshid, M. F.
Ayyoob, M.
Asad, M.
Shah, S. N. H.
Powiązania:
https://bibliotekanauki.pl/articles/233713.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
eco-friendly
antimicrobial
natural textile finish
aloe vera extraction
neem extraction
ekologiczne preparacje
przeciwbakteryjne preparacje
naturalne wykończenie tkaniny
ekstrakcja z aloesu
ekstrakcja z miodli indyjskiej
Opis:
The aim of the present work was to assess an eco friendly natural antimicrobial textile finish extracted from Aloe gel and Neem plants. Extracted Aloe gel and active substance of Neem were mixed in a mordant to form a finish. Bleached cotton samples were treated with 5, 7, and 10% concentrations of Aloe gel and Neem separately. The same samples were then treated with a hybrid combination of Aloe gel and Neem (HCAN) extracts having 5, 7 and 10% concentrations. These finished samples were subjected to an antibacterial activity test against E. coli and S. aureus, an antifungal activity test against Aspergillus Niger, and a test of their durability of antibacterial finish fastness to washing by standard test methods. It was found that the hybrid combination of Aloe gel and Neem (HCAN) was an effective antibacterial and antifungal agent as compared to Aloe gel and Neem separately. It also showed good durability to washing.
Ekstrakty z żelu aloesowego i aktywnych substancji miodli indyjskiej mieszano w zaprawie barwiarskiej dla uzyskania gotowej preparacji. Bielone bawełniane próbki nasycano roztworem o stężeniu 5%, 7% i 10% żelu aloesowego i miodli indyjskiej. Te same próbki były następnie nasycane preparacją hybrydową zawierającą obydwa składniki o tym samym stężeniu. Uzyskane próbki poddano badaniom antybakteryjnym przeprowadzając testy przeciwko E. coli i S. aureus, i antygrzybicznej aktywności przeciwko Aspergillus niger. Niezależnie od tego przeprowadzano próby trwałości preparacji antybakteryjnych po praniu w standardowych warunkach. Stwierdzono, że preparacja hybrydowa obydwu składników była aktywniejsza zarówno w stosunku do bakterii i grzybów niż preparacje z użyciem jednego tylko składnika.
Źródło:
Fibres & Textiles in Eastern Europe; 2015, 6 (114); 120-123
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, characterization and docking studies of some novel xanthene derivatives
Autorzy:
Bhatt, Aditya H.
Shah, Viral R.
Rawal, Rakesh M.
Powiązania:
https://bibliotekanauki.pl/articles/1075739.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antimicrobial activity
Docking studies
Hantzsch synthesis
Xanthene
Opis:
The synthesis of a novel xanthene derivatives bearing dimedone as an excellent precursor has been achieved by applying one pot three component Hantzsch type condensation. The newly synthesized compounds were characterized by spectral and elemental analyses. All synthesized compounds undergo docking studies and biological screening for antimicrobial activity against Gram-positive bacteria, Gram-negative bacteria and fungal species. Among all the tested compounds, it was found that compound 3c, 3d, 3g and 3h revealed better activities against the Gram-positive rather than the Gram-negative bacteria whereas results of docking studies revealed that compounds 3b, 3g and 3i showed best binding affinity towards ATP binding pocket of Human PIM1 kinase receptor through steric favorable and H-bond interactions.
Źródło:
World Scientific News; 2019, 118; 100-114
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A rapid, convient and diversified-multicomponent synthesis and characterization of pyrano[2,3-b]indoles
Autorzy:
Ghodasara, H. B.
Singala, P. M.
Shah, V. H.
Powiązania:
https://bibliotekanauki.pl/articles/412134.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1,3-bifunctional synthon
Pyrano[2,3-b]indoles
multi component reaction
non-chromatographic metod
Opis:
A series of pyrano[2,3-b]indoles, was efficiently synthesized via one-pot, multi component reaction (MCRs) of 1,3-bifunctional synthon(malononitrile/ethylcyano acetate), aromatic aldehydes and oxiindole in the presence of various basic catalyst. The key advantages of this process are high yields, shorter reaction times, easy work-up, and purification of products by non-chromatographic method.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 7; 69-76
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vibrations in a fluid-loaded poroelastic hollow cylinder surrounded by a fluid in plane-strain form
Autorzy:
Shanker, B.
Nath, C. N.
Shah, S. A.
Reddy, P. M.
Powiązania:
https://bibliotekanauki.pl/articles/265190.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
teoria Biota
częstotliwość
wibracje
prędkość fazowa
Biot's theory
fluid-loaded poroelastic cylinder
frequency
planestrain vibrations
phase velocity
Opis:
Plane-strain vibrations in a fluid-loaded poroelastic hollow cylinder surrounded by a fluid are investigated employing Biot’s theory of wave propagation in poroelastic media. The poroelastic hollow cylinder is homogeneous and isotropic, while the inner and outer fluids are homogeneous, isotropic and inviscid. The frequency equation of the fluid-loaded poroelastic cylinder surrounded by a fluid is obtained along with several particular cases, namely, fluid-loaded poroelastic cylinder, fluid-loaded bore, poroelastic cylinder surrounded by a fluid and poroelastic solid cylinder submerged in a fluid. The frequency equations are obtained for axially symmetric, flexural and anti-symmetric vibrations each for a pervious and an impervious surface. Nondimensional frequency for propagating modes is computed as a function of the ratio of thickness to the inner radius of the core. The results are presented graphically for two types of poroelastic cylinders and then discussed.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 189-216
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular epidemiology and phylogenetic analysis of Tams I gene of Theileria annulata in Khyber Pakhtunkhwa, Pakistan
Autorzy:
Shah, S.S.A.
Saddique, U.
Khan, M.A.
Khan, S.
Powiązania:
https://bibliotekanauki.pl/articles/16647390.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
crossbred cattle
Pakistan
PCR
risk factors
sequencing
theileriosis
Opis:
Theileriosis is a hemoparasitic disease that affects a wide range of different animal species and is caused by various species of Theileria. This study aimed to determine the molecular epidemiology of Theileria annulata through microscopy and PCR, in crossbred cattle in some districts of Khyber Pakhtunkhwa, Pakistan. For this study, a total of 384 blood samples were collected from cattle in the Peshawar (n=120), Charsadda (n=94), Nowshera (n=84), and Swabi (n=86) districts. Microscopy and PCR were used to determine the overall prevalence of theileriosis, which was found to be 15.8 and 22.6%, respectively. Theileria annulata was detected in blood samples through PCR in the study area, and the target gene i.e., Tams 1, of positive samples was sequenced. The sequences in the current study revealed high sequence homology (ranging from 96 to 100%) with Tams 1 sequences of neighboring countries present in the NCBI database. Season, breed, age, and sex were found to be important risk factors among the several risk factors examined, whereas, among different clinical manifestations, lymphadenopathy showed a strong association with theileriosis. According to Cohen’s kappa and ROC analysis, microscopy was proven to be a fair diagnostic test for detecting theileriosis in cattle, and may be used in combination with molecular techniques for screening a large number of animals.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 4; 625-629
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł

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