Mechanical straining-induced bandgap modulation in two-dimensional (2D) materials has been confined to volatile and narrow modulation due to substrate slippage and poor strain transfer. We report the thermomechanical ...
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A liquid scintillator containing 96Zr has been developed for ZICOS experiment. We will use 180 tons of liquid scintillator with 64 % photo coverage of 20 inch photomultiplier. In order to reach the sensitivity [math] ...
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In an effort to support the widespread use of passive acoustic monitoring devices in marine environments, a Task Team on Low-Cost Hydrophones for Research, Education, and Community science was launched under the auspi...
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ISBN:
(数字)9798331540081
ISBN:
(纸本)9798331540098
In an effort to support the widespread use of passive acoustic monitoring devices in marine environments, a Task Team on Low-Cost Hydrophones for Research, Education, and Community science was launched under the auspices of the Partnership for Observation of the Global Ocean and the International Quiet Ocean Experiment. To this aim, the Task Team is developing an open-source Low-Cost Marine Acoustic REcorder (LC-MARE), including hydrophone ceramics with a frequency response range of 10 Hz to 100 kHz, an effective sensitivity of at least -180 dB re V/µPa and an endurance exceeding one week of continuous recording. To minimise costs, the proposed deployment depth will be limited to 100 m and the pressure housing will be made of commercially available PVC tubes and fittings. The envisioned price tag of less than US$200 makes the suggested marine acoustic recorder affordable in low-budget educational and community science contexts, as well as scientific applications where finances are limiting (for example in developing countries and for entry-level researchers).
ABSTRACTABSTRACTTo study the structural, electronic, and optical properties of lead-free Barium titanate BaTiO3(BT) ferroelectric material in its tetragonal structure, a combination of experimental and theoretical stu...
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ABSTRACTABSTRACTTo study the structural, electronic, and optical properties of lead-free Barium titanate BaTiO3(BT) ferroelectric material in its tetragonal structure, a combination of experimental and theoretical studies has been used and the obtained results were discussed. The studied BT compound was prepared via the sol–gel technique. The calculated bandgap energy (Eg) and structural parameters of BT are determined using four types of exchange–correlation functionals (PBE, PBEsol, LDA, and PW91) in the perspective of the density functional theory (DFT). XRD and Raman analysis have shown that BT ceramic exhibits a tetragonal phase structure without any trace of impurity phases. The UV–vis investigation showed that BT has a bandgap energy of 3.19 eV, which is larger than the theoretically calculated values. The computed lattice parameter c is overestimated (as large as ~1% deviation) when using the LDA approximation. In contrast, PBEsol proved that those lattice constants were close to the experimental values (a deviation of less than 1%).
Neuropeptides (NPs), a unique class of neuronal signaling molecules, involved in neurotransmission, endocrine regulation, immune response, mood, and appetite control. The identification of neuropeptides provides criti...
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Vortex beams carrying orbital angular momentum have important applications in high dimensional optical information processing,manipulations of tiny particles,super-resolution imaging and so *** various optical compone...
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Vortex beams carrying orbital angular momentum have important applications in high dimensional optical information processing,manipulations of tiny particles,super-resolution imaging and so *** various optical components,metasurface represents an ideal platform for realizing vortex beams with multiple optical functionalities due to its strong ability in manipulating the phase,polarization and amplitude of light.A metasurface combing the functions of a lens and a vortex beam generator can greatly shrink the size of many optical ***,we alternatively propose a new metasurface design based on the concept of a Fresnel zone plate to generate,focus the vortex beams,and perform on-axis interference between different vortex *** functions are experimentally demonstrated through encoding the spiral phase profiles into the odd and even zones of a dielectric *** proposed vortex beam generation strategy employs the advantages of both the Fresnel zone plate and the metasurface,and may open new routes for high-dimensional optical information processing.
The four lowest Ω substates (X2Π3/2,g, X2Π1/2,g, A2Π3/2,u and A2Π1/2,u) of the I+ 2 cation have been studied by high-precision ab initio calculations in comparison with experimental high-resolution absorption spec...
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In a world where Quantum Networks are rapidly becoming a reality, the development of the Quantum Internet is gaining increasing interest. Nevertheless, modern quantum networks are still in the early stages of developm...
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Plasma simulations are powerful tools for understanding fundamental plasma science phenomena and for process optimization in applications. To ensure their quantitative accuracy, they must be validated against experime...
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Murunskite (K2FeCu3S4) is a bridging compound between the only two known families of high-temperature superconductors. It is a semiconductor like the parent compounds of cuprates, yet isostructural to metallic iron-pn...
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