Thermal management of electronics semiconductor technology is elixir to transform dream and imagination of the designers into reality. Motivation and need for research in development of novel cooling strategies for modern electronics is of paramount importance. Pulsating Heat Pipes, a novel research topic in heat pipe science, are new two-phase heat transfer devices that rely on the oscillatory...

This work deals with the application of temperature oscillation method to measure local values heat transfer coefficient in laminar flow a straight horizontal pipe and bend. method, applied here for first time such experimental conditions, uses time-varying flux as boundary condition, which is condition third kind. Since an analytical solution conditions could not be identified existing literat...

In this paper, we construct generalized bent Boolean functions in n + 2 variables from 4 generalized Boolean functions in n variables. We also show that the direct sum of two generalized bent Boolean functions is generalized bent. Finally, we identify a set of affine functions in which every function is generalized bent.

A new invariant of the set of n-variable Boolean functions with respect to the action of AGL(n, 2) is studied. Application of this invariant to prove affine nonequivalence of two Boolean functions is outlined. The value of this invariant is computed for PSap type bent functions.

Recently, one of the hot topics on vectorial Boolean bent functions is to construct vectorial Boolean bent functions in the form Tr m(P (x)) from Boolean bent functions in the form Tr 1 (P (x)), where P (x) ∈ F2n [x]. This paper first presents three constructions of vectorial Boolean bent functions in the form Tr m(P (x)), where two of them give answers to two open problems proposed by Pasalic ...

Recently friction stir welding for manufacturing of welded tubes has been developed. Friction stir welding is a continuous solid state welding process in which a non-consumable rotating tool using severe plastic deformation Can join materials can be join materials. Commonly, a portion of a specially shaped rotating tool is plunged between metalsjoint cross section and adjacent faces of the join...

This article deals with nanoindentation analysis of welded overlay layer Inconel 625 alloy on 16Mo3 steel and their interface (transition zone). The microstructure weld metal is analyzed, as well the weld-on subsequently properties (nanohardnes, reduced modulus elastic-ity) selected structural components. realized a tube made steel, which bent by so-called critical bending (d≤0,7D). also ...

The fabrication of electronic devices, such as gas sensors on flexible polymer substrates, enables the use of electronics in applications where conventional devices on stiff substrates could not be used. We demonstrate the development of a new intra-tube electronic-nose (e-nose) gas sensor device with multiple sensors fabricated and integrated on a flexible substrate. For this purpose, we devel...

In difference to many recent articles that deal with generalized bent (gbent) functions f : Z 2 → Zq for certain small valued q ∈ {4, 8, 16}, we give a complete description of these functions for both n even and odd and for any q = 2 in terms of both the necessary and sufficient conditions their component functions need to satisfy. This enables us to completely characterize gbent functions as a...

Construction of bent functions of 2k variables from a basis of Joan-Josep Climent a , Francisco J. García b & Verónica Requena a a Departament d'Estadística i Investigació Operativa , Universitat d'Alacant , Campus de Sant Vicent del Raspeig, Apartat de correus 99, Alacant , E-03080 , Spain b Departament de Fonaments de l'Anàlisi Econòmica , Universitat d'Alacant , Spain Published online: 22 Ma...