In this paper, we study the semidefinite inverse eigenvalue problem of reconstructing a real n-by-n matrix C such that it is nearest to the original pre-estimated real n-by-n matrix Co in the Frobenius norm and satisfies the measured partial eigendata, where the required matrix C should preserve the symmetry, positive semidefiniteness, and the prescribed entries of the preestimated matrix Co. W...

Exchange bias effect observed in the Ni1.68Co0.32Mn1.20Ga0.80 alloy confirms the coexistence of antiferromagnetic and ferromagnetic phases in the martensite phase. A large inverse magnetocaloric effect has been observed within the martensitic transformation temperature range, which is originated from modified magnetic order through magnetic-field-induced phase transformation from partially anti...

A new route to highly active hopcalite catalysts via flame spray pyrolysis of an inverse microemulsion precursor is reported. The nitrate derived nanoparticles are around 15 nm in diameter and show excellent conversion of CO under ambient conditions, outperforming commercial reference hopcalite materials produced by co-precipitation.

lini0.5co0.5vo4 has been successfully synthesized by tartate precursor combustion method using li2co3, co(no3)2.6h2o, ni(no3)2.6h2o and nh4vo3 as a starting materials in deionized water with the subsequent calcination at 450-600 oc for 12 h. the combustion and decomposition of tartate precursor were studied by tga and compared with tartaric acid. it found weight loss at 50-450 oc. the product s...

Let a,d be two elements in rings and a∥d the inverse of a along d. When exists, we obtain several characterizations for invertibility aa∥d−a∥da, which is related to expressed by certain functions suitable from center ring. On other hand, some equivalent conditions equality aa∥d=a∥da, as complement previous sense, are given means group inverses ring units, respectively. Then, results obtained ap...

BACKGROUND Cardiac output (CO) measurement is not a standard of care for critically ill children, but it can be estimated by indirect methods such as veno-arterial pCO2 difference (ΔVACO2). AIM To determine the correlation between CO and ΔVACO2 and evaluate the usefulness of ΔVACO2 in the diagnosis of low CO in an experimental pediatric model. MATERIALS AND METHODS Thirty piglets weighing 4...

Abstract In different branches of physics, we frequently deal with vector del operator (~∇). This del operator is generally used to find curl or divergence of a vector function or gradient of a scalar function. In many important cases, we need to know the parent vector whose curl or divergence is known or require to find the parent scalar function whose gradient is known. But the task is not ve...