SiC polytypes have been studied for decades, both experimentally and with atomistic simulations, yet no consensus has reached on the factors that determine their stability growth. Proposed governing are temperature-dependent differences in bulk energy, biaxial strain induced through point defects, surface properties. In this work, we investigate thermodynamic of 3C, 2H, 4H, 6H density functiona...

two novel 3-amino-5-(4-choloro-2-phenoxyphenyl)-4h-1,2,4-triazole derivatives were prepared and their anticonvulsant activity was measured by evaluation of the ability of these compounds to protect mice against convulsion induced by lethal doses of pentylenetetrazole (ptz). diazepam (sigma) was considered as a positive control drug with anticonvulsant effect [ed50 = 1.2 (0.5-1.9) mg/kg]. amongs...

Benzoxazinones 2,4-dihydroxy-7-methoxy-(2H)-1,4-benzoxazin-3(4H)-one (DIMBOA) and 2,4-dihydroxy-(2H)-1,4-benzoxazin-3(4H)-one (DIBOA) have been considered key compounds for understanding allelopathic phenomena in Gramineae crop plants such as corn (Zea mays L.), wheat (Triticum aestivum L.), and rye (Secale cereale L.). The degradation processes in the environment observed for these compounds, ...

The electron-attached (EA) and ionized (IP) symmetry-adapted-cluster configuration-interaction (SAC-CI) methods and their equation-of-motion coupled-cluster (EOMCC) analogs provide an elegant framework for studying open-shell systems. As shown in this study, these schemes require the presence of higher-order excitations, such as the four-particle-three-hole (4p-3h) or four-hole-three-particle (...

4H-silicon carbide (SiC) integrated platforms have shown great potential in quantum and nonlinear photonics. However, the thermal properties of 4H-SiC waveguides are still unknown, even though thermo-optic effects can play an important role fundamental measurements practical applications. Herein, a microring resonator comprehensively studied, by means both temperature tuning self-heating. The c...

It is well-known that SiC wafer quality deficiencies are delaying the realization of outstandingly superior 4H-SiC power electronics. While efforts to date have centered on eradicating micropipes (i.e., hollow core super-screw dislocations with Burgers vector > 2c), 4H-SiC wafers and epilayers also contain elementary screw dislocations (i.e., Burgers vector = 1c with no hollow core) in densitie...

In this study, we investigate the deposition of high-k dielectric materials, namely Al2O3 and HfO2, using atomic layer for 4H-SiC metal-oxide-semiconductor applications. C-V measurements reveal that HfO2/SiO2/Al2O3/4H-SiC structure exhibits lower interface state density (Dit) a reduced number fixed trap charges (Neff) than HfO2/Al2O3/SiO2/4H-SiC structure. Furthermore, observe significant degra...

A new series of quinazoline urea were synthesized and evaluated for antiviral and antimicrobial activity. Compound 4k [1-(2-chlorophenyl)-3-(4-oxo-2-phenylquinazolin-3(4H)-yl) urea] inhibited the replication of influenza A H1N1, influenza A H3N2 and influenza B at EC50 of 0.025 μM. Compound 4e [1-(2-methyl-4-oxoquinazolin-3(4H)-yl)-3-(4nitrophenyl) urea] was found to potentially inhibits replic...

In this paper, a vivid simulated study has been made on 35 GHz Ka-band window frequency in order to judge and compare the DC and high frequency properties of cubic ZnB-GaN with the existing hexagonal 4H-SiC. A flat profile p+pnn+ DDR structure of impatt is chosen and is optimized at a particular bias current density with respect to efficiency and output power taking into consideration the effec...

The lateral parabrachial nucleus (LPBN) and the central nucleus of the amygdala (CeA) are important central areas for the control of sodium appetite. In the present study, we investigated the importance of the facilitatory mechanisms of the CeA on NaCl and water intake produced by the deactivation of LPBN inhibitory mechanisms. Male Holtzman rats (n=7-14) with stainless steel cannulas implanted...