A new electrochemical dual amplification sandwich immunosensor (DASI) was designed for ultrasensitive and accurate detection of the breast cancer susceptibility gene based on the combination of N-doped graphene, hydroxypropyl chitosan and Co3O4 mesoporous nanosheets. N-doped graphene has better electroconductibility than traditional graphene. It is an ideal electrochemical material with a large...

Abstract The roll bonding process of the sandwich sheet is a preferable production method to manufacture multilayer sheets and it needs clear investigation because some industrial parts cannot fulfill all requirements by single-layer material. In this study, theoretical model has been reviewed hot rolling processes with different plate thickness flow stress were numerically investigated. contac...

The bending and critical buckling loads of a sandwich beam structure subjected to thermal load axial compression were simulated temperature distribution across layers was investigated by finite element analysis validated analytically. consisted two face sheets core, carbon fiber foam used as sheet core respectively for more efficient stiffness results. repeated with different materials reduce s...

The metal sandwich structure is characterized by light weight, high stiffness, and high-impact energy absorption capacity, which considered a good alternative protective in explosion scenarios. In this paper, four design forms of the are introduced, dynamic response under load researched. Then, new analytical method proposed to predict load, numerical simulations carried out verify accuracy ana...

In this paper, use of folded patterns as core structures for paper-based flexible wall panels and floorboards building materials was investigated. Effect of changing the geometrical parameters/conditions of the Chevron and the Mating Surfaces Chevron (MSC) patterns on panel core structure performance were studied, aim is to achieve high compressive strength and equal bending stiffness in both t...

In this study, planning, design and cost analysis of prefabricated beef cattle barns carried out. Steel mesh was used to strengthen the foundation structure. Galvanized-sheet material as carrier cover material, shaped like a trapezoid cross-section. The barns, which are planned in form tunnel cross-section tie-stalls type, designed for 10, 20 30-cattle be particularly suitable family enterprise...