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141.
142.
143.
Tanmoy Banerjee 《Nonlinear dynamics》2012,68(4):565-573
The present paper reports an inductor-free realization of Chua??s circuit, which is designed by suitably cascading a single amplifier biquad based active band pass filter with a Chua??s diode. The system has been mathematically modeled with three-coupled first-order autonomous nonlinear differential equations. It has been shown through numerical simulations of the mathematical model and hardware experiments that the circuit emulates the behaviors of a classical Chua??s circuit, e.g., fixed point behavior, limit cycle oscillation, period doubling cascade, chaotic spiral attractors, chaotic double scrolls and boundary crisis. The occurrence of chaotic oscillation has been established through experimental power spectrum, and quantified with the dynamical measure like Lyapunov exponents. 相似文献
144.
145.
Sangeeta Ray Banerjee Jon Zubieta 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(5):m208-m209
The title compound, methylene bis[bis(N,N‐diethylamino)carbeniumdithiocarboxylate] pentachlorooxorhenium, (C21H42N4S4)[ReCl5O], is the result of an unusual dimerization of the ligand bis(N,N‐diethylamino)carbeniumdithiocarboxylate [(Et2N)2C2S2] upon reaction with [ReOCl3(PPh3)2] in chloroform under reflux conditions. The compound was obtained as a dicationic moiety, with the molecular [ReOCl5]2− anion providing the charge compensation. The planes of the carbenium and thiocarboxylate moieties are nearly perpendicular to one another and the backbone C—C bond length in the N2CCS2 group is the same as a normal C—C single‐bond length. 相似文献
146.
Abazov VM Abbott B Abdesselam A Abolins M Abramov V Acharya BS Adams DL Adams M Ahmed SN Alexeev GD Alves GA Amos N Anderson EW Arnoud Y Baarmand MM Babintsev VV Babukhadia L Bacon TC Baden A Baldin B Balm PW Banerjee S Barberis E Baringer P Barreto J Bartlett JF Bassler U Bauer D Bean A Beaudette F Begel M Belyaev A Beri SB Bernardi G Bertram I Besson A Beuselinck R Bezzubov VA Bhat PC Bhatnagar V Bhattacharjee M Blazey G Blessing S Boehnlein A Bojko NI Borcherding F Bos K Brandt A Breedon R 《Physical review letters》2002,88(17):171802
We have performed a search for scalar top quark (stop) pair production in the inclusive electron-muon-missing transverse energy final state, using a sample of pp events corresponding to 108.3 pb(-1) of data collected with the D0 detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the sneutrino is the lightest supersymmetric particle. For the dominant decays of the lightest stop, t-->b chi+1 and t-->blnu, no evidence for signal is found. We derive cross-section limits as a function of stop ( t ), chargino ( chi+1), and sneutrino ( nu) masses. 相似文献
147.
Banerjee N. Raychowdhury A. Roy K. Bhunia S. Mahmoodi H. 《Very Large Scale Integration (VLSI) Systems, IEEE Transactions on》2006,14(9):1034-1039
Power consumption in datapath modules due to redundant switching is an important design concern for high-performance applications. Operand isolation schemes that reduce this redundant switching incur considerable overhead in terms of delay, power, and area. This paper presents novel operand isolation techniques based on supply gating that reduce overheads associated with isolating circuitry. The proposed schemes also target leakage minimization and additional operand isolation at the internal logic of datapath to further reduce power consumption. We integrate the proposed techniques and power/delay models to develop a synthesis flow for low-power datapath synthesis. Simulation results show that the proposed operand isolation techniques achieve at least 40% reduction in power consumption compared to original circuit with minimal area overhead (5%) and delay penalty (0.15%) 相似文献
148.
Basudeb Saha Sumana Gangopadhyay Mahammad Ali Pradyot Banerjee 《Journal of Chemical Sciences》1995,107(4):393-402
The kinetics of the reduction of [NiIII(L1)]2+ (where HL1 = 15-amino-3-methyl-4,7,10,13-tetraazapentadec-3-en-2-one oxime) by sulphur(IV) and selenium (IV) over the regions pH 2.50–8.02
and 2.01–4.00 respectively have been investigated at 30°C. Attempts were made to evaluate the reactivity of all the reacting
species, of sulphur(IV) and selenium(IV) by considering suitable pH ranges. The oxidation of SC2·H2O and HSO
3
−
is proposed to proceed through the formation of a hydrogen-bonded adduct. The reaction with SO
3
2−
seems to follow a direct outer-sphere route which is well supported by Marcus crossrelation calculation. The oxidation of
HSeO
l3
−
is ≈ 103 times slower than that of H2SeO3. The kinetic data indicate that the oxidation of sulphur(IV) by [NiIIIL1)]2+ is much more favourable as compared to the corresponding oxidation of selenium(IV). 相似文献
149.
Indrajit Banerjee Q.S. Yang Charles M. Falco Ivan K. Schuller 《Solid State Communications》1982,41(11):805-808
The superconducting transition temperature Tc of Nb/Cu superlattices has been investigated as a function of layer thickness. The dependence of Tc above 300 Å layer thickness agrees well with proximity effect theory with no adjustable parameters. Below 300 Å, the data in conjunction with current proximity theory shows that Tc of Nb decreases with layer thickness. This is interpreted as changes in the electronic density of states due to a decrease in the mean-free path. 相似文献
150.
Manas Banerjee Sankar Prasad Bhattacharyya 《International journal of quantum chemistry》1982,22(4):775-782
The considerations of Walsh rules are extended to rationalize the loss of planarity in the 1,3nπ* states of simple carbonyl and thiocarbonyl molecules. The role of Fermi correlation in shaping the differences between conformations in the singlet and the triplet state is emphasized. The role played by the π* orbital is also considered. 相似文献