- Full Research Paper
- Published 19 May 2022
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Figure 1: (a) SEM overview image showing a number of glassy carbon microneedles, (b) SEM detail image of glas...
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Figure 2: (a) SEM overview image of two glassy carbon tubules; the one on the right has its fullerene dome in...
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Figure 3: SEM images of two typical glassy carbon microneedles fractured at the tip showing that the micronee...
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Figure 4: Raman spectrum of glassy carbon tubules. Both D-band and G-band are sharp and well defined, which i...
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Figure 5: XRD of glassy carbon tubules, including the calculation of the interlayer spacing.
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- Full Research Paper
- Published 18 May 2022
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Figure 1: (a) Schematic illustration of a RBF network. (b) Schematic representation of a Gauss-neuron ensurin...
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Figure 2: Transfer functions (normalized) and their main characteristics for the Gauss-neuron. (a, b) Familie...
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Figure 3: (a) Amplitude of the transfer function and (b) its standard deviation from the Gaussian-like functi...
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Figure 4: (a) Dynamic transfer function of a Gauss-neuron for a trapezoidal external signal for different val...
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Figure 5: Sketch of the tunable kinetic inductance based on multilayer structure in the (a) closed and (b) op...
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Figure 6: Spatial distribution of the pair amplitude F in the hybrid structures (a) S–FM1–s–FM2–s–FM1–s–FM2–N...
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Figure 7: Kinetic inductance of the hybrid structures S–FM1–s–FM2–s–FM1–s–FM2–s–N and S–FM1–n–FM2–n–FM1–n–FM2...
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- Full Research Paper
- Published 04 May 2022
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Figure 1: Crystal structures of [Mg(H2O)2(H3L)]·H2O) (left) and [Pb2(HL)]·H2O) (right). General color scheme:...
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Figure 2: Nyquist plots (imaginary vs real part of impedance Z) of (a) [Mg(H2O)2(H3L)]·H2O and (b) [Pb2(HL)]·H...
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Figure 3: Proton conductivity (dashed lines as a guide to the eye) of [Mg(H2O)2(H3L)]·H2O (Mg-CP) and [Pb2(HL...
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Figure 4: Bode plots (absolute value of impedance Z and phase angle Φ vs frequency f) of (a) [Mg(H2O)2(H3L)]·H...
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Figure 5: Real parts of the conductivity values of [Mg(H2O)2(H3L)]·H2O and [Pb2(HL)]·H2O obtained by conversi...
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Figure 6: (a) Proton conductivity (dashed lines as guide to the eye) of [Mg(H2O)2(H3L)]·H2O (Mg-CP) and [Pb2(...
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- Published 03 May 2022
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Figure 1: SEM images of copper oxide samples. (a, b) General view and morphology of a CuO film obtained by th...
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Figure 2: XRD pattern of CuO films. The red diffractogram corresponds to the sample obtained by thermal oxida...
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Figure 3: (a) CV results for a nanostructured CuO film in 0.1 M NaOH buffer solution (pH 12.7) and in solutio...
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Figure 4: SEM images of CuO nanostructures obtained via hydrothermal oxidation method after (a) 1 h, (b) 3 h,...
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Figure 5: (a) DPV results for the nanostructured CuO electrode in 0.1 M NaOH buffer solution containing 33–50...
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Figure 6: (a) Amperometric response of the nanostructured CuO electrode in 0.1 M NaOH with stepwise addition ...
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Figure 7: (a) Amperometric response of the nanostructured CuO electrode in 0.1 M NaOH with stepwise addition ...
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- Full Research Paper
- Published 27 Apr 2022
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Figure 1: SEM micrographs of deposited layers on an interdigital transducer structure: (a) PANI/ZnO, (b) PANI...
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Figure 2: The Raman spectra of the PANI.
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Figure 3: Current–voltage characteristics of active layers.
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Figure 4: Temperature dependence characteristics of active layers.
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Figure 5: Schematic diagram of the gas sensing characterizations apparatus.
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Figure 6: Gas characterization of active layers towards (a) 25 ppm of NH3, (b) 25 ppm of NO2, (c) 25 ppm of C...
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Figure 7: The responses of sensing layers for different concentrations of NH3.
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Figure 8: Gas characterization of active layers to different concentrations of NH3 at 80 °C.
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Figure 9: The summary of the gas sensor responses for all active layers.
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Figure 10: RH dependences of the sensing layers.
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Figure 11: Two-dimensional (a) LDA and (b) PCA projections of extracted features.
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Figure 12: Total classification accuracy using the five classifiers SVM, KNN, DT, RF, and GPC with K-fold cros...
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Figure 13: Sensor array fabrication.
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Figure 14: Sensor array with nanocomposite sensing layers with dimensions and bottom view with heating element...
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Figure 15: Smart sensing system block diagram.
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- Full Research Paper
- Published 22 Apr 2022
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Figure 1: Specimens. (a) The middle part of the hind tibia was cut from the desert locust. Indents were perfo...
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Figure 2: Elastic modulus and water content of specimens in different treatment groups. (a) The elastic modul...
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Figure 3: Elastic modulus of (a) frozen, (b) desiccated and (c) rehydrated tibiae against recorded time. Diff...
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- Review
- Published 12 Apr 2022
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Figure 1: The lumped parameters model of the pull-in phenomenon between parallel plates. Figure 1 was redrawn from [11].
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Figure 2: Structures of CNT switches. (a) Bridge model, (b) cantilever model, and (c) vertical model. Figure 2a,b,c we...
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Figure 3: Structures of GR NEM switches. (a) GR-Au model and (b) GR-GR model. Figure 3a,b were redrawn from [7,29], respecti...
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Figure 4: All flexible structure of a GR switch. Figure 4 was redrawn from [5].
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Figure 5: (a) Lateral structure and (b) U-shape structure of NW switches. Figure 5a,b were redrawn from [36,37], respectively....
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Figure 6: The structure of a GR-CPW phase shifter. Figure 6 was redrawn from [56].
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Figure 7: NEM switch used for ESD. Figure 7 was redrawn from [61].
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Figure 8: Schematic diagram of a flexible microvalve structure. Figure 8 was redrawn from [77].
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Figure 9: Schematic diagram of a GR pump. Figure 9 was republished from [78] (D. Davidovikj et al., “Graphene gas pumps”,...
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Figure 10: The structure of the NEM-PUF device. Figure 10 was redrawn from [79].
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Figure 11: The structure of the sensor-switch system. Figure 11 was redrawn from [86].
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Figure 12: The structure of the plate transducer. Figure 12 was redrawn from [98].
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Figure 13: Structure of a PHVG system. Figure 13 was redrawn from [101].
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- Review
- Published 11 Apr 2022
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Figure 1: A schematic representation of the issues covered in this review.
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Figure 2: Simplified graphical representation of a cross section of articular cartilage and its associated mo...
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Figure 3: (Top) SEM images of electrospun nanofibers, representing the soft group (35% modified MeHA) and the...
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Figure 4: Schematic representation of GelMA-coated CNTs embedded in gelatin hydrogel for the preparation of t...
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- Full Research Paper
- Published 01 Apr 2022
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Figure 1: TEM image showing disk, stacked disk, and helical rod particles.
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Figure 2: Comparison of TEM images (top) and DLS data (bottom) for TMV-cp assembled under different pH and et...
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Figure 3: TEM images comparing TMV-cp assembled at pH 5.5 in different concentrations of ethanol. (A) no addi...
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Figure 4: TEM images comparing TMV-cp particles assembled in 5.0 mol % ethanol at different pH values. (A) pH...
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Figure 5: TEM images of TMV-cp assembled at pH 5.5 in the presence of different alcohol additives. (A) 5.0 mo...
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Figure 6: PyMOL [47] schematic showing (A) one face of the disk and (B) the side view of two layers of the disk. ...
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- Published 31 Mar 2022
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Figure 1: Schematic diagram of a sputtering system for the deposition of AlxZnyO films.
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Figure 2: View of the working magnetron and glass strip substrate positioned over the Zn/Al target.
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Figure 3: Magnetron source with Zn/Al target and images showing tested arrangements of Al inserts.
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Figure 4: Surface resistance measured for the thin film deposited on both sides of the glass substrate as a f...
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Figure 5: Results of investigations on optical transmission: (a) transmission (T) spectra and (b) dependence ...
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Figure 6: Dependence of thickness of thin films deposited on the front and back sides of the substrate as a f...
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Figure 7: Distribution of the resistivity of thin films deposited on the front and back sides of the glass su...
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Figure 8: Results of the optical bandgap width estimated from optical measurements for thin films deposited a...
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Figure 9: Results of the structural investigation: (a) XRD patterns and (b) crystallite sizes as functions of...
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Figure 10: SEM images of the surface of thin films deposited on the front substrate surface at different dista...
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Figure 11: Al/Zn ratio in thin films deposited on the front side of the glass substrate as a function of the d...
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