Classical double-mode pulsators (RR Lyrae stars and delta Cepheids) are important for their simultaneous pulsation in low-order radial modes. This enables us to put stringent constraints on physical parameters. We use 30 bright galactic RR~Lyrae (RRd) estimate luminosities compare them with those derived from the parallaxes of recent data release (EDR3) Gaia survey. employ evolutionary models, ...

A nonlinear elastic foundation model has been developed to predict the mixed-mode (modes I and II) delamination failure of laminated composites. Two types of nonlinear elastic foundations were used to represent pure mode I and pure mode II components of the material failure ahead of the crack tip. One is a tension spring foundation for mode I component and the other is a shear spring foundation...

A new test method has been developed to measure the resistance of dynamic fracture initiation in brittle materials under combined mode I/I loadings. The Brazilian disks with center-cracks have been fractured under oblique impact loadings in diarnetral-compression. The dynamic stress intensity factors of mode I and H are evaluated from the superposition integrals of the step response functions f...

A mixed—mode delamination test procedure was developed combining double cantilever beam (DCB) mode I loading and end-notch fixture (ENF) mode II loading on a split unidirectional laminate. By loading with a lever, a single applied load simultaneously produces mode I and mode II bending loads on the specimen. This mixed-mode bending (MMB) test was analyzed using both finite-element procedures an...

Fatigue crack growth in Al 2024 and 7050 specimens was assessed experimentally numerically. In the experimental investigation, various specimen configurations loading conditions were used to achieve pure mode I, II, mixed I/II, I/III, I/II/III. Sample as follows: first, compact tension shear (CTS) reproduce mode-I initial mode-II conditions; second, surface (SCT) analyze behavior of semiellipti...

Proof. Let’s first consider mode = 3. For a fixed node (index) i, its slice matrix X (:, :, i) = ∑R r=1 yi(r) · zr ◦ zr, where yi ∈ R indicates to which cluster the node i belong. More specifically, if node i belongs to cluster r, yi(r) = 1, otherwise yi(r) = 0. Since a node cannot belong to multiple clusters, let’s say it is in cluster r. Then, X (:, : , i) = zr ◦ zr, which is rank one. When m...

For the standardization of Wireless Application Protocol (WAP) 2.0, we proposed the functions specific to i-mode HyperText Markup Language (HTML) to the WAP Forum. As a result, we were able to assure the functional compatibility between the WAP 2.0 markup language and i-mode HTML. In order to technically verify the functional compatibility of the WAP 2.0 with i-mode HTML, we conducted the exper...