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magnetism, etc ; catalytic activity; ecosystems; financial economics; human health; nanocatalysts; oxidation; ozonation; ozone; wastewater; wastewater treatment; China; Show all 12 Subjects
Abstract:
... With the continuous development of nanomaterials in recent years, the application of nanocatalysts in catalytic ozone oxidation has attracted more and more researchers' attention due to their excellent catalytic properties. In this review, we systematically summarized the current research status of nanocatalysts mainly involving material categories, mechanisms and catalytic efficiency. Based on su ...
magnetism, etc ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; azo dyes; catalysts; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; hot water treatment; hybrids; mass spectrometry; pH; pollution; reaction mechanisms; temperature; thermogravimetry; wastewater; China; Show all 18 Subjects
Abstract:
... Wastewater containing an azo dye Orange G (OG) causes massive environmental pollution, thus it is critical to develop a highly effective, environmental-friendly, and reusable catalyst in peroxymonosulfate (PMS) activation for OG degradation. In this work, we successfully applied a magnetic MnFe₂O₄/α-MnO₂ hybrid fabricated by a simple hydrothermal method for OG removal in water. The characteristics ...
... In recent years, structural and geotechnical instrumentation is extensively applied as a method for surveillance, control, and evaluation of the behavior and function of natural and man-made structures. Apart from construction control, instrumentation is also indispensable for site investigation, design verification, and safety of the structure. Two of the monitoring instrumentation types, which a ...
... This work investigates the performance of an electromagnetic vibration harvester for two-dimensional vibrations with variable magnetic stiffness and electromagnetic damping. The device consists of a free-to-move cylindrical magnetic structure with a set of bearings located on top and bottom, a couple of coils located on top and bottom of the device and finally a fixed system of disc-shaped magnets ...
... In this study, we present a theoretical study on the in-plane conductance of graphene partially sandwiched between Ni(111) nanostructures with a width of ∼12.08 Å. In the sandwiched part, the gapped Dirac cone of the graphene was controlled using a pseudospin by changing the magnetic alignment of the Ni(111) nanostructures. Upon considering the antiparallel configuration of Ni(111) nanostructures, ...
... The application of the power generated by the proposed magnetic energy-harvesting suspension (MEHS) is to power a wireless sensor in the MEHS. In this paper, the generated powers of the MEHS at various excitations have been theoretically analyzed and experimentally validated. Firstly, the dynamic mechanism of the proposed MEHS is revealed and investigated. Secondly, the analysis expression of ener ...
... DNA logic circuits are based on DNA molecular programming that implements specific algorithms using dynamic reaction networks. Particularly, DNA adder circuits are key building blocks for performing digital computation. Nevertheless, existing circuit architectures are limited by scalability for implementing multi-bit adder due to the number of required gates and strands. Here, we develop a compact ...
... Pr-Fe-B thin films are fabricated using a sputtering process with the Pr-Fe-B layer being sandwiched between a Si₃N₄ layer and the glass substrate. The effects of substrate-bias-voltage in the range of − 150 and + 100 V on the microstructure and magnetic properties of Pr-Fe-B thin films were investigated systematically in this study using a vibrating sample magnetometer and other techniques. A dir ...
... High-resolution inelastic neutron scattering has been used to study low-energy magnetic transitions in a Ho³⁺ complex. This complex crystallises in the high-symmetry space group P4/m and has near-perfect D₄d symmetry, which has allowed for the determination of all relevant spin-Hamiltonian parameters. Static and dynamic inhomogeneity in the crystal lattice manifests as a temperature-dependent broa ...
... Enriching small extracellular vesicles (sEVs) with undamaged structure and function is a pivotal step for further applications in biological and clinical fields. It has prompted researchers to explore a carrier material that can efficiently capture sEVs while also gently release the captured sEVs. Here, 1-adamantylamine (1-ADA) responsive immuno-affinitive supramolecular magnetic nanoparticles (IS ...
magnetism, etc ; biofabrication; medicine; microgravity; Show all 4 Subjects
Abstract:
... Magnetic levitation allows for simulating the microgravity conditions to advance bottom-up tissue engineering, forging regenerative medicine ahead to enable space exploration. Here, magnetic levitation methods for microgravity studies and the biofabrication of 3D cellular structures are discussed. ...
... This research work focuses on the magnetic properties, nature of the magnetic phase transition, magnetocaloric effect, and critical scaling of magnetization of various Co₁₋ₓCrₓFe₂O₄ (x = 0, 0.125, 0.25, 0.375, and 0.5). The tunability of the magnetic moment, exchange interactions, magnetocrystalline anisotropy constant, and microwave frequency using Cr³⁺ content has been found. The nature of the m ...
... The synthesis and isolation of one of the few examples of a π-extended diamagnetic phenazine dication have been achieved by oxidizing a phenanthrene-based dihydrophenazine precursor. The resulting dication was isolated and fully characterized, highlighting an aromatic distorted structure, generated by the conformational change upon the oxidation of the dihydrophenazine precursor, which is also cor ...
... Assembly of multiple-component composites into a beneficial multi-shell structure has been demonstrated as an efficient strategy to induce wideband electromagnetic (EM) attenuation in principle. However, structural engineering with selective components remains challenging, hindering the development of high-performance EM absorbers. Herein, a distinctive structure of large-scale magnetic particle-d ...
... The temperature (T) dependences of magnetization dynamics, especially for magnetic damping anisotropy, have been systematically investigated in well-ordered Co₂FeAl films with a biaxial anisotropy. It is found that the damping anisotropy factor Q, defined as the fractional difference of damping between the hard and easy axes, changes from 0.35 to −0.09 as T decreases from 300 to 80 K, performing a ...
... Controlling negative thermal expansion (NTE) is an important topic in the study of NTE materials. Generally, a large magnitude of NTE with a wide NTE operation temperature window is preferable for applications of NTE materials, as a stronger NTE can be used to tailor the coefficient of thermal expansion (CTE) of materials with positive thermal expansion by forming composites more efficiently. Howe ...
... Previous research to localize face areas in dogs’ brains has generally relied on static images or videos. However, most dogs do not naturally engage with two-dimensional images, raising the question of whether dogs perceive such images as representations of real faces and objects. To measure the equivalency of live and two-dimensional stimuli in the dog’s brain, during functional magnetic resonanc ...
... The aromaticity of borazine (B₃N₃H₆), also known as the inorganic benzene, is a controversial issue since this compound has several characteristics that could qualify it as an aromatic compound. However, recent studies using magnetic criteria indicate that this compound should be considered as a non-aromatic system. This assignment is mainly due to diatropic currents in the nitrogen atoms without ...
... In this study, the adsorption of CO molecule over (001) surface of the Heusler alloy CrCoIrGa, has been investigated using DFT+U calculations. It is demonstrated that, after relaxation, the (001) surface retains the bulk atomic positions, exhibiting no apparent surface reconstruction. Owing to the emergence of unsaturated bonds at the surface, the surface layer atoms are found to carry more spin-p ...
... The aeromagnetic survey is a common remote sensing tool for detecting iron deposits. The local wavenumber of a magnetic anomaly is used to interpret the edges or positions of the sources, and can involve first- or second-order local wavenumbers. In this paper, we derived a linear equation between the second-order local wavenumber and the source location; therefore, we propose a constraint of first ...