Abstract Thermoelectric power generation offers a promising way to recover waste heat. The geometrical design of thermoelectric legs in modules is important ensure sustainable but cannot be easily achieved by traditional fabrication processes. Herein, we propose the cellular architectures for efficient and durable generation, realized extrusion-based 3D printing process Cu 2 Se materials. We op...

We have used extensive V , I photometry (down to V = 20.9) of 33615 stars in the direction of the globular cluster M 55 to study the dynamical interaction of this cluster with the tidal fields of the Galaxy. An entire quadrant of the cluster has been covered, out to ' 1.5 times the tidal radius. A CMD down to about 4 magnitudes below the turn-off is presented and analysed. A large population of...

The cross section of the process e+e− → ωπ0 → π0π0γ has been measured in the c.m. energy range 920–1380 MeV with the CMD-2 detector. Its energy dependence is well described by the interference of the ρ(770) and ρ(1450) mesons decaying to ωπ. Upper limits for the cross sections of the direct processes e+e− → π0π0γ, ηπ0γ have been set.

Topology optimization is a powerful tool for producing an optimal free-form design from input mechanical constraints. However, in its traditional-density-based approach, it does not feature proper definition the external boundary. Therefore, integration of shape-related constraints remains hard. It requires experts’ intervention to interpret generated designs into parametric shapes; thus, makin...

Four-dimensional (4D) printing of shape memory polymers is a leading research field due to the possibilities allowed by using these materials. The strain difference in structures that caused different stiffness profiles can be used influence shape-memory effect actuators. In this study, patterns on tested polylactic acid (PLA) actuators made shapes. Five bioinspired geometrical shapes, namely, ...

All-dielectric metasurfaces exhibit exotic electromagnetic responses, similar to those obtained with metal-based metamaterials. Research in all-dielectric currently uses relatively simple unit-cell designs, but increased geometrical complexity may yield even greater scattering states. Although machine learning has recently been applied the design of impressive results, much more challenging tas...

We solve the design spectrum problem for all theta graphs with 10, 11, 12, 13, 14 and 15 edges.

Progressive loosening of bone fixation screws is a well-documented phenomenon, induced by stress shielding and subsequent adaptive bone remodeling which results in bone loss around the screw. A set of two-dimensional computational (finite element) models was developed in order to test the effect of various engineering designs of fixation screws on the predicted screw-bone stress transfer, and c...

A set XN of N points on the unit sphere is a spherical t-design if the average value of any polynomial of degree at most t over XN is equal to the average value of the polynomial over the sphere. This paper considers the characterization and computation of spherical t-designs on the unit sphere S2 ⊂ R3 when N ≥ (t + 1)2, the dimension of the space Pt of spherical polynomials of degree at most t...

Recent advances in additive manufacturing (AM) techniques in terms of accuracy, reliability, the range of processable materials, and commercial availability have made them promising candidates for production of functional parts including those used in the biomedical industry. The complexity-for-free feature offered by AM means that very complex designs become feasible to manufacture, while batc...