Publications by authors named "A R Melnikov"
The recent development of microacoustic metagratings opens up promising possibilities for manipulating acoustic wavefronts passively, particularly in applications such as flat acoustic lenses and ultra-high frequency ultrasound imaging. The emergence of two-photon polymerization has made it feasible to precisely manufacture microscopic structures, as required when metagratings are scaled to MHz frequencies in airborne ultrasound. Nevertheless, the downsizing process presents another hurdle as the increased thermoviscous effects result in substantial losses that must be considered during the design phase.
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- Autologous bone grafts, particularly from the proximal tibia, are examined as a viable option for maxillofacial surgeries, offering low donor site morbidity and the advantage of local anaesthesia options.
- In a study of 21 tibia grafts, 57% were used for alveolar ridge reconstruction and 43% for rhinoplasty, with minor complications reported at donor and recipient sites.
- Overall, the findings suggest that proximal tibia grafts are effective for these procedures, with a high implant survival rate of 86.7% over median follow-up of 40.5 months.
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- The study examines the ultrafast reactions initiated by light in the (n-BuN)[Pt(NO)] complex when dissolved in acetonitrile, using transient absorption spectroscopy and quantum chemical calculations.
- The main reaction involves an inner-sphere electron transfer that results in the release of an NO radical into the solution.
- The mechanism of these rapid photophysical and photochemical processes is deduced from both experimental findings and theoretical calculations.
The application of terahertz (THz) science in industrial technology and scientific research requires efficient THz detectors. Such detectors should be able to operate under various external conditions and conform to existing geometric constraints in the required application. Pyroelectric THz detectors are among the best candidates.
View Article and Find Full Text PDFThe present letter demonstrates a simple method to characterize the molecular electron spin qubits, for which a large number of chemical compounds with non-zero spin have been proposed. The method is based on calculating the value of π using a one-qubit protocol based on obtaining and processing Rabi oscillations. It was implemented using a model system of a Finland trityl radical with an electron spin = 1/2 and a pulsed electron paramagnetic resonance spectrometer.
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