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Search for "modeling" in Full Text gives 305 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Nonlinear features of the superconductor–ferromagnet–superconductor φ0 Josephson junction in the ferromagnetic resonance region

  • Aliasghar Janalizadeh,
  • Ilhom R. Rahmonov,
  • Sara A. Abdelmoneim,
  • Yury M. Shukrinov and
  • Mohammad R. Kolahchi

Beilstein J. Nanotechnol. 2022, 13, 1155–1166, doi:10.3762/bjnano.13.97

Graphical Abstract
  • Landau–Lifshitz model to reproduce the damping of the precessing magnetic moment. Gilbert damping is also important in modeling other resonance features, as its temperature dependence affects them [20][21], and, in turn, in the superconducting correlations that affect it [22]. The magnetization
  • precession in an ultrathin Co20Fe60B20 layer stimulated by microwave voltage under a large angle requires modeling by a Duffing oscillator, too. This is aided by the so-called fold-over features, again due to nonlinearity [16][23][24]. The consequences of the nonlinear nature of the coupled set of the LLGJ
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Published 21 Oct 2022

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

  • Aisha Kanwal,
  • Naheed Bibi,
  • Sajjad Hyder,
  • Arif Muhammad,
  • Hao Ren,
  • Jiangtao Liu and
  • Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

Graphical Abstract
  • different carbonization temperatures (200 and 450 °C) were used to prepare CDs, namely C-1 and C-2, respectively, via pyrolysis. To examine the interaction of functional groups present on the CDs with water vapor, theoretical modeling was also carried out by using the DFT-based B3LYP hybrid functional at 6
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Published 05 Oct 2022

Comparing the performance of single and multifrequency Kelvin probe force microscopy techniques in air and water

  • Jason I. Kilpatrick,
  • Emrullah Kargin and
  • Brian J. Rodriguez

Beilstein J. Nanotechnol. 2022, 13, 922–943, doi:10.3762/bjnano.13.82

Graphical Abstract
  • implement, their typical operation requires the application of a DC bias, which makes them unsuitable for applications in liquid environments. Even when these modes can be operated in an OL manner, they require explicit knowledge of C′ or C″, either through measurement or modeling, which can be difficult to
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Published 12 Sep 2022

Numerical modeling of a multi-frequency receiving system based on an array of dipole antennas for LSPE-SWIPE

  • Alexander V. Chiginev,
  • Anton V. Blagodatkin,
  • Dmitrii A. Pimanov,
  • Ekaterina A. Matrozova,
  • Anna V. Gordeeva,
  • Andrey L. Pankratov and
  • Leonid S. Kuzmin

Beilstein J. Nanotechnol. 2022, 13, 865–872, doi:10.3762/bjnano.13.77

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  • of Sciences, GSP-105, Nizhny Novgorod, 603950, Russia Chalmers University of Technology, Department of Microtechnology and Nanoscience - MC2, Gothenburg, SE-412 96, Sweden 10.3762/bjnano.13.77 Abstract Here we present the results of a numerical modeling of mode composition in the constriction of the
  • 1 Ohm at the working point. In the present paper, we describe the problems of numerical modeling for double-frequency arrays of dipole antennas connected in parallel on a single substrate with radiation going through the back-to-back horn with predefined parameters. Results Calculation of the mode
  • the operating frequency range. For correct numerical modeling of the frequency response of the receiving system, it is necessary to know the distribution of the field of the incident wave on the matrix of receiving cells. The most consistent would be modeling a back-to-back horn irradiated by a plane
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Published 01 Sep 2022

Self-assembly of C60 on a ZnTPP/Fe(001)–p(1 × 1)O substrate: observation of a quasi-freestanding C60 monolayer

  • Guglielmo Albani,
  • Michele Capra,
  • Alessandro Lodesani,
  • Alberto Calloni,
  • Gianlorenzo Bussetti,
  • Marco Finazzi,
  • Franco Ciccacci,
  • Alberto Brambilla,
  • Lamberto Duò and
  • Andrea Picone

Beilstein J. Nanotechnol. 2022, 13, 857–864, doi:10.3762/bjnano.13.76

Graphical Abstract
  • measurements and for modeling by ab initio calculations. Periodic and compact films are generally obtained when the molecules possess enough surface mobility, that is, when the diffusion energy (Ed) is low compared to the thermal energy kBT, where T is the substrate temperature and kB is the Boltzmann constant
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Published 30 Aug 2022

Modeling a multiple-chain emeraldine gas sensor for NH3 and NO2 detection

  • Hana Sustkova and
  • Jan Voves

Beilstein J. Nanotechnol. 2022, 13, 721–729, doi:10.3762/bjnano.13.64

Graphical Abstract
  • experiment and the numerical model is good. Conclusion Several models of polyaniline emeraldine salt interacting with ammonia and nitrogen dioxide gas were established, and their I–V characteristics were computed through numerical modeling (Synopsys QuantumATK [14]) to obtain the resistance of these one
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Published 26 Jul 2022

A superconducting adiabatic neuron in a quantum regime

  • Marina V. Bastrakova,
  • Dmitrii S. Pashin,
  • Dmitriy A. Rybin,
  • Andrey E. Schegolev,
  • Nikolay V. Klenov,
  • Igor I. Soloviev,
  • Anastasiya A. Gorchavkina and
  • Arkady M. Satanin

Beilstein J. Nanotechnol. 2022, 13, 653–665, doi:10.3762/bjnano.13.57

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  • approximation, we reduced it to the Pauli master equation (we present the results of modeling for the generalized master equation with and without the secular approximation in Appendix 3): where the dots denote a differentiation by normalized time, Wmn is the transition rate from the state n to m given by the
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Published 14 Jul 2022

Fabrication and testing of polymer microneedles for transdermal drug delivery

  • Vahid Ebrahiminejad,
  • Zahra Faraji Rad,
  • Philip D. Prewett and
  • Graham J. Davies

Beilstein J. Nanotechnol. 2022, 13, 629–640, doi:10.3762/bjnano.13.55

Graphical Abstract
  • ), Zeonor 1060R yield stress (53 MPa), and lateral shear force component estimated during insertion. According to SEM images from samples (n = 3), the location of bending from the base (x) is at 244.4 ± 2.03 µm corresponding to a lateral shear load of 0.33 to 0.34 N. Buckling modeling was based on elastic
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Published 08 Jul 2022

A new method for obtaining the magnetic shape anisotropy directly from electron tomography images

  • Cristian Radu,
  • Ioana D. Vlaicu and
  • Andrei C. Kuncser

Beilstein J. Nanotechnol. 2022, 13, 590–598, doi:10.3762/bjnano.13.51

Graphical Abstract
  • frequent issues in magnetic nanoparticulate systems, that is, the evaluation of particle volume as well as the anisotropy magnitude and orientation for each entity of the system. It is dedicated to the improvement of both engineering and modeling of nanoparticulate systems, which are essential for
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Published 05 Jul 2022

Tunable superconducting neurons for networks based on radial basis functions

  • Andrey E. Schegolev,
  • Nikolay V. Klenov,
  • Sergey V. Bakurskiy,
  • Igor I. Soloviev,
  • Mikhail Yu. Kupriyanov,
  • Maxim V. Tereshonok and
  • Anatoli S. Sidorenko

Beilstein J. Nanotechnol. 2022, 13, 444–454, doi:10.3762/bjnano.13.37

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  • to adjust the parameters of the studied Gauss-cell (with Gaussian-like activation function) is very important for in situ switching between operating modes. Using microscopic modeling, we have shown that the desired compact tunable passive element can be implemented in the form of a controllable
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Published 18 May 2022

Electrostatic pull-in application in flexible devices: A review

  • Teng Cai,
  • Yuming Fang,
  • Yingli Fang,
  • Ruozhou Li,
  • Ying Yu and
  • Mingyang Huang

Beilstein J. Nanotechnol. 2022, 13, 390–403, doi:10.3762/bjnano.13.32

Graphical Abstract
  • pull-in as the working mechanism have attracted researcher’s attention because of the low cost and the simple structures. Extensive research has shown that modeling the bending of the flexible devices is only limited to the mechanical behavior of the flexible interconnect lines, and hardly involves the
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Published 12 Apr 2022

Micro- and nanotechnology in biomedical engineering for cartilage tissue regeneration in osteoarthritis

  • Zahra Nabizadeh,
  • Mahmoud Nasrollahzadeh,
  • Hamed Daemi,
  • Mohamadreza Baghaban Eslaminejad,
  • Ali Akbar Shabani,
  • Mehdi Dadashpour,
  • Majid Mirmohammadkhani and
  • Davood Nasrabadi

Beilstein J. Nanotechnol. 2022, 13, 363–389, doi:10.3762/bjnano.13.31

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Published 11 Apr 2022

Controllable two- and three-state magnetization switching in single-layer epitaxial Pd1−xFex films and an epitaxial Pd0.92Fe0.08/Ag/Pd0.96Fe0.04 heterostructure

  • Igor V. Yanilkin,
  • Amir I. Gumarov,
  • Gulnaz F. Gizzatullina,
  • Roman V. Yusupov and
  • Lenar R. Tagirov

Beilstein J. Nanotechnol. 2022, 13, 334–343, doi:10.3762/bjnano.13.28

Graphical Abstract
  • . Such double jumps were observed in the ρxy(H) dependence for a wide range of angles φH of the applied magnetic field. The magnitude of the magnetic field, at which the jumps occur, depends on the direction of the field. Modeling of such a scenario (Figure 3a) brings us to the conclusion that these
  • varied from its maximum value to zero. Circles indicate the experimental data, lines indicate the results of the modeling following Equation 2. (a) Dependence of the resistivity Δρz on the magnetic field strength at different temperatures. Inset: a variation of the (ρx(10 kOe) − ρx(0.5 kOe))/9.5 kOe
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Published 30 Mar 2022

A broadband detector based on series YBCO grain boundary Josephson junctions

  • Egor I. Glushkov,
  • Alexander V. Chiginev,
  • Leonid S. Kuzmin and
  • Leonid S. Revin

Beilstein J. Nanotechnol. 2022, 13, 325–333, doi:10.3762/bjnano.13.27

Graphical Abstract
  • Technology, SE-41296 Gothenburg, Sweden 10.3762/bjnano.13.27 Abstract Modeling of a broadband receiving system based on a meander series of Josephson YBaCuO grain boundary junctions integrated into a log-periodic antenna was carried out. The electromagnetic properties of the system, namely amplitude
  • ; electromagnetic modeling; log-periodic antenna; RCSJ model; series Josephson junctions; YBaCuO Josephson junction; Introduction High-temperature superconducting (HTSC) Josephson junctions (JJs) have great potential as promising materials for creating high-frequency devices, such as microwave generators [1][2
  • results with acceptable accuracy. Figure 1 shows a complete modeling system with lens (Figure 1d) and calculated beam pattern at 250 GHz (Figure 1e). The obtained values of 15.7 dBi main lobe magnitude with 15° angular width demonstrate good receiving characteristics. A port with an impedance of 5 Ω was
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Published 28 Mar 2022

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF3)4

  • Alexey Prosvetov,
  • Alexey V. Verkhovtsev,
  • Gennady Sushko and
  • Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

Graphical Abstract
  • understanding of the relationship between deposition parameters and physical characteristics of fabricated nanostructures (e.g., size, shape, purity, and crystallinity). Further advancement of the existing experimental techniques and molecular-level computational modeling can provide insights into the
  • . Therefore, it is essential to develop a comprehensive computational protocol for atomistic simulations of electron-induced nanostructure formation during the FEBID process. This paper outlines a detailed computational methodology for modeling the formation and growth of metal-containing nanostructures
  • interactions among the constituents of the system. Interatomic potentials The precursor molecules are described via the reactive CHARMM (rCHARMM) force field [17][18]. rCHARMM permits simulations of systems with dynamically changing molecular topologies, which is essential for modeling the precursor
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Published 13 Oct 2021

Self-assembly of amino acids toward functional biomaterials

  • Huan Ren,
  • Lifang Wu,
  • Lina Tan,
  • Yanni Bao,
  • Yuchen Ma,
  • Yong Jin and
  • Qianli Zou

Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85

Graphical Abstract
  • , simple modeling, excellent biocompatibility and biodegradability in vivo. In addition, amino acids can be assembled with other components to meet multiple scientific needs. However, using these simple building blocks to design attractive materials remains a challenge due to the simplicity of the amino
  • ordered nanostructures through noncovalent interactions, including electrostatic, π–π stacking, van der Waals, and hydrophobic interactions. The self-assembly of single amino acids has the advantages of low synthesis cost, relatively easy modeling [27], and excellent biocompatibility and biodegradability
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Published 12 Oct 2021

Open-loop amplitude-modulation Kelvin probe force microscopy operated in single-pass PeakForce tapping mode

  • Gheorghe Stan and
  • Pradeep Namboodiri

Beilstein J. Nanotechnol. 2021, 12, 1115–1126, doi:10.3762/bjnano.12.83

Graphical Abstract
  • -KPFM [27][28]. The benefit of a CL KPFM method is that the CPD is readily obtained in the form of a final product that is assembled in a map over the scanned area. However, the detailed response of the electrostatic tip–sample interaction is not available in CL KPFM, so post-processing and modeling of
  • modeling [55] of the tip–sample system. While in CL AM-KPFM these deconvolutions apply to the CPD maps as inverse problems, it is conceivable that a simple model such as a multi-capacitances approximation can be run on OL AM-KPFM measurements to remove some of the stray capacitive couplings concomitantly
  • pass is distributed over the topography line recorded in the first pass. Also, because the response to the applied bias modulation was fully acquired in the proposed OL KPFM implementation, the CPD was determined by modeling the electrostatic interaction between the AFM probe and the sample. This was
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Published 06 Oct 2021

The role of convolutional neural networks in scanning probe microscopy: a review

  • Ido Azuri,
  • Irit Rosenhek-Goldian,
  • Neta Regev-Rudzki,
  • Georg Fantner and
  • Sidney R. Cohen

Beilstein J. Nanotechnol. 2021, 12, 878–901, doi:10.3762/bjnano.12.66

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Published 13 Aug 2021

Electromigration-induced formation of percolating adsorbate islands during condensation from the gaseous phase: a computational study

  • Alina V. Dvornichenko,
  • Vasyl O. Kharchenko and
  • Dmitrii O. Kharchenko

Beilstein J. Nanotechnol. 2021, 12, 694–703, doi:10.3762/bjnano.12.55

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  • dynamics of the evolution of surface morphology at elevated temperatures. This effect can lead to a change in the morphology of the surface compared to the isotropic case of deposition without the presence of an external field. Mathematical and numerical modeling of nanostructured thin film growth
  • the most common approaches for mathematical modeling of these processes is based on the reaction–diffusion models [49][50][51][52][53][54][55][56][57][58][59][60][61]. This approach generally allows one to make certain recommendations for adjusting the technological conditions for growing thin films
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Published 13 Jul 2021

Nanogenerator-based self-powered sensors for data collection

  • Yicheng Shao,
  • Maoliang Shen,
  • Yuankai Zhou,
  • Xin Cui,
  • Lijie Li and
  • Yan Zhang

Beilstein J. Nanotechnol. 2021, 12, 680–693, doi:10.3762/bjnano.12.54

Graphical Abstract
  • rehabilitation, sports training, human motion recognition, respiratory monitoring, and human 3D motion modeling [78][79][80]. These data can be used for real-time detection of human health or human–computer interaction [81][82]. Wen et al. [22] manufactured a transparent and stretchable wrinkled (maximum strain
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Published 08 Jul 2021

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

  • Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

Graphical Abstract
  • Winston et al. in Figure 5b [107]. Modeling and experimental measurements of the 2D point-spread function for HIBL (i.e., the spatial distribution of energy deposition, which determines the proximity effect) can be found in the same reference. Cai et al. extended this work to a 3D visualization of the
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Published 02 Jul 2021

The preparation temperature influences the physicochemical nature and activity of nanoceria

  • Robert A. Yokel,
  • Wendel Wohlleben,
  • Johannes Georg Keller,
  • Matthew L. Hancock,
  • Jason M. Unrine,
  • D. Allan Butterfield and
  • Eric A. Grulke

Beilstein J. Nanotechnol. 2021, 12, 525–540, doi:10.3762/bjnano.12.43

Graphical Abstract
  • given for first-order modeling in ISO 19057:2017 [43][44]: Biological identity of the as-prepared and partially dissolved solvothermally synthesized nanoceria Solvothermally synthesized nanoceria was partially dissolved by loading nanoceria (1.3 mL of 19,540 μg/mL cerium) into Slide-A-LyzerTM cassettes
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Published 04 Jun 2021

Colloidal particle aggregation: mechanism of assembly studied via constructal theory modeling

  • Scott C. Bukosky,
  • Sukrith Dev,
  • Monica S. Allen and
  • Jeffery W. Allen

Beilstein J. Nanotechnol. 2021, 12, 413–423, doi:10.3762/bjnano.12.33

Graphical Abstract
  • equilibrium behavior as a function of varying system parameters. Our modeling results indicate that uniform aggregation of a square lattice is preferred over non-uniform aggregation with respect to the overall magnitude of the total DLVO force. When arranged in a hexagonal lattice, however, the preferred
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Published 06 May 2021

The impact of molecular tumor profiling on the design strategies for targeting myeloid leukemia and EGFR/CD44-positive solid tumors

  • Nikola Geskovski,
  • Nadica Matevska-Geshkovska,
  • Simona Dimchevska Sazdovska,
  • Marija Glavas Dodov,
  • Kristina Mladenovska and
  • Katerina Goracinova

Beilstein J. Nanotechnol. 2021, 12, 375–401, doi:10.3762/bjnano.12.31

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Published 29 Apr 2021

The patterning toolbox FIB-o-mat: Exploiting the full potential of focused helium ions for nanofabrication

  • Victor Deinhart,
  • Lisa-Marie Kern,
  • Jan N. Kirchhof,
  • Sabrina Juergensen,
  • Joris Sturm,
  • Enno Krauss,
  • Thorsten Feichtner,
  • Sviatoslav Kovalchuk,
  • Michael Schneider,
  • Dieter Engel,
  • Bastian Pfau,
  • Bert Hecht,
  • Kirill I. Bolotin,
  • Stephanie Reich and
  • Katja Höflich

Beilstein J. Nanotechnol. 2021, 12, 304–318, doi:10.3762/bjnano.12.25

Graphical Abstract
  • improved through modeling of the relevant processes in FIB machining, especially angle-dependent physical sputtering [11] and redeposition [15], or geometric considerations [12]. In the same manner, locally varying doses in He ion-based resist patterning may be corrected based on heuristic modeling
  • arbitrary imported shapes. Finally, full Python functionality is available with FIB-o-mat, for example to employ other geometric modeling libraries. Pattern generation can be carried out at two different abstraction levels, depending on the needs of the user and the capabilities of the microscope software
  • 1.3 μm at a wavelength of 632 nm was directed onto the central region of the resonator. A numerical description of the locally heated resonator was carried out by finite element modeling. The obtained heat map shows good thermal decoupling of the trampoline geometry with a large gradient. The central
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Published 06 Apr 2021
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