Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity by He-Xiu Xu, Guang-Ming Wang, Chen-Xin Zhang

“…It is found that fractal perturbation in CRR results in lower and more transmission zeros in comparison with conventional CRR using nonfractal geometries. The single negative-permeability or -permittivity of these MTM TLs which associated with the resultant multitransmission zeros occurs by turns and should benefit devices with high selectivity requirement. …”
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Selective union of ATP vs ADP to an amino/amide macrocycle and its Cu2+ complexes: potentiometric, spectrophotometric and theoretical approximations by Armando Ferrer Serrano, Yennys Hernández Molina

“…It was found that the studied ligand forms stable mononuclear and binuclear complexes with Cu (II) and these species have similar geometries, squared pyramid, above pH 7. An evaluation through its potentiometrically determined stability constants of the selective recognition of ATP over ADP by this macrocycle and its Cu (II) complexes is presented. …”
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CFD Turbulence Study of PWR Spacer-Grids in a Rod Bundle by C. Peña-Monferrer, J. L. Muñoz-Cobo, S. Chiva

“…This work presents the analysis of the turbulence effects of a split-type and swirl-type spacer-grid geometries on single phase in a PWR (pressurized water reactor) rod bundle. …”
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Elastoplastic and fracture behaviour of semi-crystalline polymers under multiaxial stress states by Joao Pedro Manaia, Abílio M.P. Jesus, Francisco A. Pires

“…In addition, the effects of notch profile radii (stress triaxiality) on HDPE, PP and PA 6 fracture behaviour have been studied at RT, using flat and cylindrical notched specimens. Specimens’ geometries were carefully designed to achieve various loading conditions and allowing to explore initial stress triaxialities ranged from 0 in pure shear loading (α = 0°) to a maximum of 0.84 for flat notched specimens with radius of 5 mm. …”
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High-Gain Textile Antenna Array System for Off-Body Communication by Maria Lucia Scarpello, Luigi Vallozzi, Hendrik Rogier, Dries Vande Ginste

“…To allow simple low-cost beam steering, we specifically minimize mutual coupling by using a relative large distance between the patches and by selecting the ETMPA element as the most suited topology from three potential patch geometries. Moreover, we investigate the stability of return loss and mutual coupling characteristics under different relative humidity conditions, when bending the array, when placing the system on-body, and when covering it by different textile layers. …”
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Design and Pro-typing of an Electronic Coil Winding Machine. by Arinaitwe, Joel

“…This allows for: Precise Control: The encoder data can be used by a control system to precisely regulate the speed and direction of the winding spindle, ensuring consistent coil geometries. Accurate Counting: The encoder pulses directly correlate to the number of wire rotations, providing a highly accurate measurement of the number of windings. …”
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Plastic stress intensity factor behavior at small and large scale yielding by Alexander Zakharov, Valery Shlyannikov, Anastasia Tartygasheva

“…Special emphasis is put on the behavior of the J-integral and the plastic SIF for the specified test specimen geometries under mixed mode loading. The coupling effects of the mixed mode fracture and the material properties on the J-integral and the plastic SIF distributions for a set of the specimen configurations are stated. …”
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Comparison of Point and Snow Load Deflections in Design and Analysis of Tensile Membrane Structures by Vuk S. Milošević, Biserka Lj. Marković

“…Models represent typical geometries of hypar membrane structures on a square base. …”
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Preparation and Characterization of Di-, Tri-, and Tetranuclear Schiff Base Complexes Derived from Diamines and 3,4-Dihydroxybenzaldehyde by Ahlam Jameel Abdulghani, Asmaa Mohammed Noori Khaleel

“…The structures of the ligands and metal complexes were characterized by elemental analyses, NMR, and FTIR spectra. The geometries of metal complexes were suggested according to elemental analysis, electronic spectra, thermal analyses, atomic absorption, and magnetic moments and conductivity measurements.…”
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Construction of Mutually Orthogonal Graph Squares Using Novel Product Techniques by A. El-Mesady, Omar Bazighifan

“…Sets of mutually orthogonal Latin squares prescribe the order in which to apply different treatments in designing an experiment to permit effective statistical analysis of results, they encode the incidence structure of finite geometries, they encapsulate the structure of finite groups and more general algebraic objects known as quasigroups, and they produce optimal density error-correcting codes. …”
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Comparison Study on the Exact Dynamic Stiffness Method for Free Vibration of Thin and Moderately Thick Circular Cylindrical Shells by Xudong Chen, Kangsheng Ye

“…Since the DSM is an exact approach, the advantages of high accuracy, no-missing frequencies, and good adaptability to various geometries and boundary conditions are demonstrated. …”
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Contatto tra i componenti di una protesi di ginocchio: studio numerico e sperimentale by D. Tumino, M. Saporito, L. D’Acquisto, T. Ingrassia, D. Cerniglia

“…In this case, some preliminary tests were required to calibrate the system depending on the particular characteristics of materials, geometries and surface finish of the prosthesis.The results show a good correlation between the data obtained with the two different approaches and, consequently, a good level of reliability of the procedures developed for the numerical and experimental evaluation of the contact area. …”
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Nonreciprocal Synchronization of Active Quantum Spins by Tobias Nadolny, Christoph Bruder, Matteo Brunelli

“…We propose an implementation based on two atomic ensembles coupled via chiral waveguides featuring both braided and nonbraided geometries. The spins are active due to the presence of local gain, which allows them to synchronize. …”
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Thermo-fluid characteristics and exergy analysis of a twisted tube helical coil by Mahmoud Abdelmagied

“…This technique aims to improve the thermofluid characteristics by involving the swirl intensity of fluid flow in a twisted tube helical coil (TTHC). Six identical geometries with different pitch ratios $$\Upsilon$$ of 36 mm, 54 mm, and ∞ (smooth/no twisted) were experimentally explored at two different inner tube profiles of triangular and square cross-sections in counter flow arrangements. …”
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3D landmark‐based face restoration for recognition using variational autoencoder and triplet loss by Sahil Sharma, Vijay Kumar

“…Abstract Restoration of a 3D face from the mesh image is highly demanded in computer vision applications. 3D face restoration is a challenging task due to the variation of expression, poses, intrinsic geometries, and textures. The proposed technique consists of two main components, namely face restoration and recognition. …”
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The Effect of Microcylinder Shape on Enhancing the Aerodynamics of Airfoils at a Low Reynolds Number by Renata Gnatowska, Karolina Gajewska

“…Previous research provides different solutions, from basic changes in surface roughness and simple geometries to complex shapes and mechanical solutions. …”
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Calculation of Rotor Dynamic Coefficients for Labyrinth Seals by B. P. Williams, R. D. Flack

“…The method is applicable to different teeth geometries and arrangements. A parametric analysis of the effect of mass flow rate on rotor dynamic coefficients is performed and suggests that a small variation in mass flow rate does not significantly detract from the accuracy of the predicted dynamic coefficients; the mass flow rate calculation implemented in this paper is sufficiently accurate. …”
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Safeguarding accuracy for CT imaging with industrial robots: Efficient calibration methods for arbitrary trajectories by Anton Weiss, Simon Wittl, Gabriel Herl, Simon Zabler, Anna Trauth, Markus G. R. Sause

“…For example in a twin robot computed tomography system, acquisition geometries with arbitrary tool poses can be realized. …”
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Numerical investigation of trihybrid nanofluid heat transfer in a cavity with a hot baffle by Rajab Alsayegh

“…Understanding their behaviour in confined geometries with complex boundary conditions, such as a free surface and heated obstacle, is important to optimize their performance. …”
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High temperature fatigue tests and crack growth in 40CrMoV13.9 notched components by P. Gallo, F. Berto

“…In order to completely characterize the high temperature behaviour of this steel, firstly uniaxial-tension load controlled fatigue tests have been conducted at different temperatures up to 650°C. Two geometries are considered: plain specimens and plates weakened by symmetric V-notches. …”
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