George K. Larsen’s research while affiliated with Savannah River National Laboratory and other places

... Among the industrial applications of mineral oils, one should mention first of all their usage as lubricants (engines, bearings etc.), insulators (high voltage transformers), and coolant fluids (e.g., solar energy concentrators) [8]. High-purity mineral oils can be also used in the rotary or diffusion pumps of vacuum systems [9]. Therefore, physical properties such as viscosity, thermal stability, dielectric constant, specific heat and vapor pressure are of paramount importance. ...

Reference:

Photoluminescence Induced in Mineral Oil by Ionizing Radiation

... It should be noted that the combination in Eq. (11) uses equal weighting. In solar forecasting studies, once the initial conditions need to be perturbed, parameter diversity is a useful method as it considers numerical weather prediction models (NWP) [76,77]. Kalman filter is the best method for NWP which estimates the "true" state of a dynamical system from noisy measurement data [76]. ...

Reference:

A Comprehensive Review on Ensemble Solar Power Forecasting Algorithms

... For plasmonic patchy NPs, a key challenge has been on the synthesis, as it is hard to achieve high precision in patterning ligand molecules on a NP surface with nanometer precision. For colloidal particles that are micrometer in size, various top-down methods such as electron beam lithography and deposition have been utilized to coat the particles with surface patches [14][15][16], thereby enabling directional self-assembly [16,17] and diverse applications such as biomedicine [18], sensing [19], self-propelling motors [20,21], and anti-counterfeiting [22]. However, most of these methods have a resolution that is around tens to hundreds of nanometer resolution [23,24], not sufficient for NPs. ...

Reference:

Polymer-Patched Plasmonic Nanoparticles

... The magnetic circular dichroism (MCD) is used to probe the magnetic dynamics in the magnetic nano-cap arrays upon (de)hydrogenation. Owing to unique magnetic property such as tunable magnetic anisotropy and magnetochiral effect [1,[22][23][24][25] and optimal material and nanostructure design for fast hydrogen sorption kinetics [18,26], the MCD spark-free H 2 sensor exhibits excellent sensing performance that meets or surpasses the most challenging performance targets imposed by DOE [17]. In particular, a Pd 67 Co 33 sensor exhibits response time of t 90 < 0.9 s, recovery time of t 10 < 9.0 s over the entire 1-100 mbar H 2 partial pressure range, with limit of detection (LOD) of ~1 ppm. ...

Reference:

Ultra-fast and sensitive Magneto-Optical Hydrogen Sensors Using a Magnetic Nano-cap Array

... The monitoring of tritium concentrations in the vicinity of power plants is currently a subject of heightened interest. As tritium levels decline, there is a need to monitor lower levels of tritium activity in the environment [6][7][8]. ...

Reference:

Radioprotective Properties of Fullerenol: Cellular, Biochemical and Physicochemical Approaches

... In fact, the peculiar dynamics associated with the molecular sublattice makes HPs a case study of the outmost complexity for what concerns electric polarization and RE, two interlaced phenomena that depend on the detail of the atomic structure. To rationalize this complexity, in the literature, a distinction is made between static RE and dynamic RE: the former is derived by static, built-in dipole fields that may occur in a number of situations: genuinely polarized low-temperature surfaces, 19 ferroelastic nanodomains, 20 nanocrystals, 21,22 2D perovskites, [23][24][25][26][27][28] heterostructures, 29,30 perovskite quantum-dots, 31 and doped perovskites. 32 The dynamical RE 6,14 explores the possibility that even in a globally centrosymmetric phase, which is believed to represent the HPs at room temperature, the RE can still show up, due to correlated molecular fluctuations, albeit on short length-scale ($nm) and timescale ($ps). ...

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A promising outlook on the development of lead halide perovskites as spin-orbitronic materials

... Note that the ΔMCD H 2 isotherm could be measured at any combination of λ and B. The shape of ΔMCD isotherm curve is generally similar to that of optical transmission isotherm [18], and no hysteresis is observed at the measured pressure range. In addition, the plateau pressure shifts significantly to higher pressure than that of a pure Pd NP sensor [18,38] and is above the probing pressure range. The result is consistent with the previous observation for bulk PdCo alloys [26,39,40] and similar to the behaviors of the PdCu alloy nanoparticles [41]. ...

Reference:

Ultra-fast and sensitive Magneto-Optical Hydrogen Sensors Using a Magnetic Nano-cap Array

... So, they have been widely used in many fields. [25][26][27] Based on this advantage, protein imprinting also began to develop magnetic micro/nanomaterials as polymeric carriers. A series of protein imprinting was carried out on their surfaces to obtain magnetic surface imprinted polymers with easy separation and good adsorption performance. ...

Reference:

Anti‐nonspecific adsorption segments‐assisted self‐driven surface imprinted fibers for efficient protein separation

... Note that the optical transmission of a stand-alone PS nanosphere monolayer does not change upon its exposure to hydrogen ( Supplementary Fig. 14). The increasing trend of optical transparency upon hydrogenation has been also observed in Pd thin films, although this increase is independent of wavelength in the visible-NIR region 30,31 . ...

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Sub-second and ppm-level optical sensing of hydrogen using templated control of nano-hydride geometry and composition

... 13,76 They are crucial in making magnetic storage devices, magnetic beads that are used in biotechnology, contrast enhancement in magnetic resonance imaging (MRI), targeted drug delivery and ferrofluids. 13,77 The magnetic nanoparticles that are based on green synthesis have been utilised in semiconductors, 78 Iron nanoparticles (FeNPs) gained importance in the industrial sites, textile 82 and plastic industries with coatings made of nanofibre and nanowire. 13 It is also used in tissue repair, 83 drug delivery, 84 biological fluids detoxification, 85,86 hyperthermia, 85 and cell separation by immunoassay. ...

Reference:

Green Synthesis of Metal Nanoparticles Using Cinnamomum-Based Extracts and Their Applications