Several species of sea cucumbers, all belonging to a single family, possess a peculiar and specialized defense system, the Cuvierian tubules. It is mobilized when the animal is mechanically stimulated, resulting in the discharge of a few white filaments, the tubules. In seawater, the expelled tubules lengthen considerably and become sticky upon contact with any object. The adhesiveness of their...

The demand for "green" degradable composite materials increases with growing environmental awareness. The key challenge is achieving the preferred physical properties and maintaining their eco-attributes in terms of the degradability of the matrix and the filler. Herein, we have designed a series of "green" homocomposites materials based purely on polylactide (PLA) polymers with different struc...

The paper analyzes the existing methods for obtaining threads and yarns. It has been established that largest combined (reinforced) make it possible to produce textile products with specified special properties. Tensile tests were carried out on a three-component yarn, one of components which was ferromagnetic microwire. when such thread is stretched, breakage does not occur simultaneously. Fir...

In this study, the relationship between functionality and comfort of conductive fabrics for smart clothing is investigated by examining changes in mechanical, electrical, properties knitted based on blending ratio yarns. Hence, flat same structure are manufactured using polyester silver-coated polyamide Subsequently, their weight, thickness, tensile strength, strain, bending rigidity, breathabi...

This paper examines downward price rigidity in Iranian house market and discusses whether this characteristic would result in an asymmetric relationship between house price and monetary policy. To test the downward house price rigidity the threshold GARCH model is employed. The asymmetric adjustment to monetary policy is examined using the asymmetric cointegration and error correction models. T...

OBJECTIVES This study aims to assess the correlation of CT-based structural rigidity analysis with mechanically determined axial rigidity in normal and metabolically diseased rat bone. METHODS A total of 30 rats were divided equally into normal, ovariectomized, and partially nephrectomized groups. Cortical and trabecular bone segments from each animal underwent micro-CT to assess their averag...

Adhesion of regenerating bone tissue to orthopaedic implants is critical their long-term success. Titanium has excess rigidity, interferes with imaging, and complicates radiation treatment. Poly(ether-ether-ketone) (PEEK) a preferred material, but limited by biological inertness. We show that plasma immersion ion implantation (PIII) imparts osteoadhesion on 3D printed PEEK using in vitro pull-o...

Rigidity theory enables us to specify the conditions of unique localizability in the cooperative localization problem of wireless sensor networks. This paper presents a combinatorial rigidity approach to measure (i) generic rigidity and (ii) generalized redundant rigidity properties of graph structures through graph invariants for the localization problem in wireless sensor networks. We define ...