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Dielectric and Optical Study of Polymer Nematic Liquid Crystal Composite
Manohar, S.,Shukla, S.N.,Chandel, V.S.,Shukla, J.P.,Manohar, R. The Korean Institute of Electrical and Electronic 2013 Transactions on Electrical and Electronic Material Vol.14 No.3
The dielectric anisotropy and dispersion of the real and imaginary part of the permittivity of commercially important nematic mixture E-24 and its polymer composite were investigated in the frequency range from 1 kHz to 10 MHz, and temperature range $14^{\circ}C$ to $55^{\circ}C$. The percentage optical transmittance and density have also been measured for both the systems. The results have been explained by assuming molecular rotation about the long molecular axis, under a hindering nematic potential. The dielectric anisotropy ${\Delta}{\varepsilon}$ is positive, and the mean dielectric permittivity falls with rising temperature. ${\Delta}{\varepsilon}$ is also used to determine the order parameter with varying temperature.
Dielectric and Optical Study of Polymer Nematic Liquid Crystal Composite
S. MANOHAR,V. S. CHANDEL,S. N. SHUKLA,J. P. SHUKLA,R. MANOHAR 한국전기전자재료학회 2013 Transactions on Electrical and Electronic Material Vol.14 No.3
The dielectric anisotropy and dispersion of the real and imaginary part of the permittivity of commercially important nematic mixture E-24 and its polymer composite were investigated in the frequency range from 1 kHz to 10 MHz, and temperature range 14℃ to 55℃. The percentage optical transmittance and density have also been measured for both the systems. The results have been explained by assuming molecular rotation about the long molecular axis, under a hindering nematic potential. The dielectric anisotropy Δε is positive, and the mean dielectric permittivity falls with rising temperature. Δε is also used to determine the order parameter with varying temperature.
Structure elucidation of a newly isolated saponin from Clerodendrum serratum (L) Moon
Santosh S. Bhujbal,Rabindra K.Nanda,Ramesh S.Deoda,Dinesh Kumar,Shailesh M. Kewatkar,Laxmikant S.More,Manohar J.Patil 경희대학교 융합한의과학연구소 2010 Oriental Pharmacy and Experimental Medicine Vol.10 No.4
Plant saponins are widely distributed amongst plants and have a wide range of biological properties. Icosahydropicenic acid, C51H80O19 ((4S,6bS)-8a-((4,5-dihydroxy-6-methyl-3-((3R)-3,4,5-trihydroxy-6-methyl-tetrahydro-2H-pyran-2-yloxy)-tetrahydro-2H–pyran–2-yloxy)carbonyl)-2-hydroxy-4, 6a,6b, 11, 14b-pentamethyl-11-(2-methylprop-1-enyl)-3-(3,4,5-trihydroxy-6-(hydroxymethyl) - tetrahydro-2Hpyran-2-yloxy)-1, 2, 3, 4, 4a, 5, 6, 6a, 6b, 7, 8, 8a, 9, 10, 11, 12, 12a, 14, 14a, 14b-icosahydropicene-4-carboxylic acid), a new saponin was first time isolated from the roots of Clerodendrum Serratum (L)Moon (Verbenaceae).The structure elucidation of the compound was carried out by 1H NMR and DART-MS studies.
Optical Studies of a Pure and Dye Doped Nematic Liquid Crystal E-24
V. S. CHANDEL,S. MANOHAR,J. P. SHUKLA,R. MANOHAR 한국전기전자재료학회 2012 Transactions on Electrical and Electronic Material Vol.13 No.5
The present paper reports the comparative optical behavior of a pure nematic mixture E-24 and its anthraquinone dye doped sample. The variation in the ordinary and extraordinary refractive index (no, ne) of the pure and dye doped samples with temperature has been discussed and it has been found that doped sample have a less refractive index compared to the pure sample. The variation in the order parameter for pure and doped samples with temperature has been discussed and it has been seen that the doped sample has a higher order parameter; the possible reasons have been discussed. The variations in birefringence and optical transmittance have also been presented here.
Structure elucidation of a newly isolated saponin from Clerodendrum serratum (L) Moon
Bhujbal, Santosh S.,K.Nanda, Rabindra,S.Deoda, Ramesh,Kumar, Dinesh,Kewatkar, Shailesh M.,S.More, Laxmikant,J.Patil, Manohar Kyung Hee Oriental Medicine Research Center 2010 Oriental pharmacy and experimental medicine Vol.10 No.4
Plant saponins are widely distributed amongst plants and have a wide range of biological properties. Icosahydropicenic acid, $C_{51}H_{80}O_{19}$ ((4S,6bS)-8a-((4,5-dihydroxy-6-methyl-3-((3R)-3,4,5-trihydroxy-6-methyl-tetrahydro-2H-pyran-2-yloxy)-tetrahydro-2H-pyran-2-yloxy)carbonyl)-2-hydroxy-4, 6a, 6b, 11, 14b-pentamethyl-11-(2-methylprop-1-enyl)-3-(3,4,5-trihydroxy-6-(hydroxymethyl) - tetrahydro-2Hpyran-2-yloxy)-1, 2, 3, 4, 4a, 5, 6, 6a, 6b, 7, 8, 8a, 9, 10, 11, 12, 12a, 14, 14a, 14b-icosahydropicene-4-carboxylic acid), a new saponin was first time isolated from the roots of Clerodendrum Serratum (L) Moon (Verbenaceae). The structure elucidation of the compound was carried out by $^1H$ NMR and DART-MS studies.
Optical Studies of a Pure and Dye Doped Nematic Liquid Crystal E-24
Chandel, V.S.,Manohar, S.,Shukla, J.P.,Manohar, R. The Korean Institute of Electrical and Electronic 2012 Transactions on Electrical and Electronic Material Vol.13 No.5
The present paper reports the comparative optical behavior of a pure nematic mixture E-24 and its anthraquinone dye doped sample. The variation in the ordinary and extraordinary refractive index ($n_o$, $n_e$) of the pure and dye doped samples with temperature has been discussed and it has been found that doped sample have a less refractive index compared to the pure sample. The variation in the order parameter for pure and doped samples with temperature has been discussed and it has been seen that the doped sample has a higher order parameter; the possible reasons have been discussed. The variations in birefringence and optical transmittance have also been presented here.
A novel modification of Bardach's two-flap palatoplasty for the repair of a difficult cleft palate
Mir, Mohd Altaf,Manohar, Nishank,Chattopadhyay, Debarati,Mahakalkar, Sameer S Korean Society of Plastic and Reconstructive Surge 2021 Archives of Plastic Surgery Vol.48 No.1
Bardach described a closure of the cleft utilizing the arch of the palate, which provides the length needed for closure and is most effective only in narrow clefts. Herein, we describe a case where we utilized Bardach's two-flap technique with a vital and easy modification, done to allow closure of a wide cleft palate and to prevent oronasal fistula formation at the junction of the hard and soft palate, which are otherwise difficult to manage with conventional flaps. The closed palate showed healthy healing, palatal lengthening, and no oronasal regurgitation. We advise using this modification to achieve the goals of palatal repair in difficult cases where tension-free closure would otherwise be achieved with more complex flap surgical techniques, such as free microvascular tissue transfer.
Genome sequencing and de novo and reference-based genome assemblies of Bos indicus breeds
Chakraborty Abhisek,Bisht Manohar S.,Saxena Rituja,Mahajan Shruti,Pulikkan Joby,Sharma Vineet K. 한국유전학회 2023 Genes & Genomics Vol.45 No.11
Background Indian cattle breeds (Bos indicus) are known for their remarkable adaptability to hot and humid climates, higher nutritious quality of milk, better disease tolerance, and greater ability to perform in poor feed compared to taurine cattle (Bos taurus). Distinct phenotypic differences are observed among the B. indicus breeds; however, the whole genome sequences were unavailable for these indigenous breeds. Objective We aimed to perform whole genome sequencing to construct the draft genome assemblies of four B. indicus breeds; Ongole, Kasargod Dwarf, Kasargod Kapila, and Vechur (the smallest cattle of the world). Methods We sequenced the whole genomes using Illumina short-read technology, and constructed de novo and reference-based genome assemblies of these native B. indicus breeds for the first time. Results The draft de novo genome assemblies of B. indicus breeds ranged from 1.98 to 3.42 Gbp. We also constructed the mitochondrial genome assemblies (~ 16.3 Kbp), and yet unavailable 18S rRNA marker gene sequences of these B. indicus breeds. The genome assemblies helped to identify the bovine genes related to distinct phenotypic characteristics and other biological processes for this species compared to B. taurus, which are plausibly responsible for providing better adaptive traits. We also identified the genes that showed sequence variation in dwarf and non-dwarf breeds of B. indicus compared to B. taurus. Conclusions The genome assemblies of these Indian cattle breeds, the 18S rRNA marker genes, and identification of the distinct genes in B. indicus breeds compared to B. taurus will help in future studies on these cattle species.