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NOTE ON SOME CHARACTER FORMULAS
Chaudhary, Mahendra Pal,Chaudhary, Sangeeta,Choi, Junesang The Honam Mathematical Society 2016 호남수학학술지 Vol.38 No.4
Chaudhary and Choi [7] presented 14 identities which reveal certain interesting interrelations among character formulas, combinatorial partition identities and continued partition identities. In this sequel, we aim to give slightly modified versions for 8 identities which are chosen among the above-mentioned 14 formulas.
NOTE ON SOME CHARACTER FORMULAS
( Mahendra Pal Chaudhary ),( Sangeeta Chaudhary ),( Junesang Choi ) 호남수학회 2016 호남수학학술지 Vol.38 No.4
Chaudhary and Choi [7] presented 14 identities which reveal certain interesting interrelations among character formulas, combinatorial partition identities and continued partition identities. In this sequel, we aim to give slightly modified versions for 8 iden- tities which are chosen among the above-mentioned 14 formulas.
In‐band phase deviation minimization method for wideband tunable phase shifter
Chaudhary, Girdhari,An, Boram,Jeong, Yongchae John Wiley Sons, Inc. 2019 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS Vol.61 No.2
<P><B>Abstract</B></P><P>This article provides a novel approach to analyze and design wideband tunable reflection‐type phase shifter (RTPS) with low in‐band phase deviation (IBPD) error. The proposed RTPS consists of coupled lines where through and coupled ports are terminated with varactor diodes. The coupled lines can minimize the parasitic elements of varactor diode to achieve high phase shift range (PSR). In addition, the measured frequency‐dependent capacitance of varactor diode was used in the analytical analysis to obtain minimum IBPD error and high PSR. For experimental demonstration, phase shifter was fabricated at the center frequency of 2.5 GHz. The measured results show that the fabricated circuit achieved 126.85° PSR with ±6.48° IBPD error for 500 MHz bandwidth (BW). In addition, the measured maximum insertion loss variation and input/output return losses are within ±0.34 dB and higher than 16.85 dB within 500 MHz BW, respectively.</P>
A quest for effective polarizability as a function of the radii
Chaudhary Shalini,Tandon Hiteshi,Chakraborty Tanmoy 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.78 No.11
Lately we have proposed an atomic polarizability model, viz. α ∝ (r3∕Z eff e2) , through an empirical approach. As the results obtained using the model were remarkable, we have tried to explore the efficacy of this polarizability model by using four different types of radii for 96 atoms invoking a regression analysis. Further, we have performed a study on molecules by employing additivity property. Although the results are similar in the case of atoms, two of the four radii-based polarizability sets perform better when molecules are considered. In addition, the molecular polarizability is computed for a variety of anaesthetics due to its significance in biochemical interactions. A significant correlation is obtained between the computed and the published data, corroborating the efficacy of polarizability model in the prediction of biological mechanisms. The polarizability model is revealed to be conceptually rigorous even when different types of radii are used, so it can be satisfactorily employed for real-field applications.