One of the most innovative developments in field advanced materials is sandwich materials. Sandwich material applications need standard requirements to be applied marine structures, especially on ship construction. research conducted a laboratory scale obtain appropriate composition its development. In process developing this material, can damaged. Most damage occurs core which results difficul...

Sandwich construction is widely accepted as a method of construction especially in the aircraft industry. It is a type of stressed skin construction formed by bonding two thin faces to a thick core, the faces resist all of the applied edge loads and provide all or nearly all of the required rigidities, the core spaces the faces to increase cross section moment of inertia about common neutral ax...

Introduction: It is estimated that one-third of the world’s population is infected with M. tuberculosis. Also we came to know that the numbers of TB cases are on the rise in our rural based tertiary care hospital. We searched for Mycobacterium tuberculosis antigen in the serum of patients with pulmonary TB by developing Sandwich ELISA. Materials & Methods: We took 50 pulmonary TB patients, 50 d...

Phloem tissues of pine are habitats for many thousands of organisms. Arthropods and microbes use phloem and cambium tissues to seek mates, lay eggs, rear young, feed, or hide from natural enemies or harsh environmental conditions outside of the tree. Organisms that persist within the phloem habitat are difficult to observe given their location under bark. We provide a technique to preserve inta...

Here, we report a two-dimensional (2D) amorphous photonic structure (APS) discovered in the central layer of periostracum mussel Perna canaliculus, based on field emission scanning electron microscopy, X-ray diffractometer, attenuated total reflection Fourier transform infrared spectroscopy, and fiber optic spectrometry combined with image processing technology pair correlation function analysi...

The reaction of RuCl(3)(solv.)(n) with tert-butylacetylene in methanol or ethanol leads to the formation of chloro-bridged half-sandwich complexes with sterically demanding cyclopentadienyl ligands, which are of high interest as starting materials for the synthesis of novel Ru catalysts.

This article reports an experimental study carried out with the aim of quantifying performance and failure modes of sandwich structures when subjected to impulsive blast loading. In particular, performance enhancement with respect to solid panels of equal mass per unit area is assessed. Likewise, the optimal distribution of the mass per unit area in the design of sandwich structures is investig...

PURPOSE This study evaluated whether a Class II restoration in a flowable resin composite has to be placed prior to (open-sandwich technique) or after (closed-sandwich technique) construction of the interproximal wall in the centripetal build-up technique in order to reduce microleakage. METHODS AND MATERIALS Thirty non-carious molars were selected and randomly divided into two groups (n = 15...

Delamination caused by low velocity impact is one of the most frequent cases of damage in sandwich composite materials. When delamination is present the ability of the material to withstand structural loading is limited [1, 2]. In many cases, a local repair of a damaged sandwich structure is preferable over replacement for economical, mechanical and environmental reasons. Bonded repairs are wid...