In the present study, the effect of core on shear lag phenomenon in tubular structures is investigated. Three different tubular structure models including model without core, model with central core and model with central core but eliminated in last 15 stories have been analyzed. A shear lag index is defined for evaluating these models. From examination of the results, the effective influence o...

A degradation model for high-nickel positive electrode materials that undergo a structural reorganisation involving oxygen loss and the formation of disordered (spinel or rock-salt structure) passivation layer is presented first time. The thermally coupled continuum based on single-particle upon LiNi 0.8 Mn 0.1 Co O 2 (NMC811) layered oxide in this instance. theoretical framework assumes shrink...

Here we developed a new method to quantitatively characterize the spatial distribution of Brønsted acidity HZSM-5 zeolite on crystal grains level indirectly. The acid sites completely covered or blocked by previous coke deposition were released gradually from outer surface center via shrinking core mode isothermal oxidation with high temperature and low oxygen concentration. was obtained based ...

Advancements in technology have enabled the integration of a great amount of processor cores on a single silicon die, known as multi-core systems. Quite a few commercial designs have been launched into market in recent years, for example, nVidia 128-core GeForce 8800 GPU [77] and ARM11 PrimeXsys platform [7]. Some research groups even predicted that thousand-core processors would be commerciali...

In this paper, we classify the four-dimensional gradient shrinking solitons under certain curvature conditions satisfied by all solitons arising from finite-time singularities of Ricci flow on compact four-manifolds with positive isotropic curvature. As a corollary, we generalize a result of Perelman on three-dimensional gradient shrinking solitons to dimension four.

Sequence compression is one of the most promising tools for strengthening pseudo-random generators used in stream ciphers. Indeed, adding compression components can thwart algebraic attacks aimed at LFSR-based stream ciphers. Among such components are the Shrinking Generator and the Self-Shrinking Generator, as well as recent variations on Bit-Search-based decimation. We propose a general model...

At the end of 20th century, phenomenon urban shrinkage received widespread attention, with population decline as its core characteristic. In 2020, Taiwanese had negative growth and faced a low fertility rate an aging population. This study used exploratory spatial data analysis to identify shrinking cities in Taiwan based on census registers. The results indicated that has 11 counties 202 towns...

The PBH clusters can be sources of gravitational waves, and the merger rate depends on spatial distribution PBHs in cluster which changes over time. It is well known that collisional systems experience core collapse leads to significant increase central density shrinking core. After collapse, expands almost self-similarly (i.e., profile extends size without changing its shape). These dynamic pr...