This paper deals with a semidefinite program (SDP) having free variables, a minimization of a linear objective function in a positive semidefinite matrix variable and free real variables subject to linear equality constraints in those variables. This type of SDP often appears in practice. To apply the primal-dual interior-point method developed for the standard form SDP having no free variables...

Metal oxides as ZnO provide an interesting alternative for conventional low work function metals as electron injection layer in organic light-emitting diodes (OLEDs). However, for most state-of-the-art OLED materials the high work function of ZnO leads to a large injection barrier for electrons. As a result the electron current in the OLED is largely limited by the contact, leading to a strong ...

the purpose of this project is the study of the natural gas {methane)steam reforming process through modeling and computer simulation. the operating parameters will be determined and then the? effect of changing these parameters on the conversion and purity of the final products will be studied. using computer simulation. the effect of the change in parameters will be studied along the lenght o...

Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit including © notice is given to the source." Abstract The integration of data from autonomous and heterogeneous sources calls for the prior identification and resolution of semantic conflicts that may be present. Unfortunately, this requires the system integrator to sift thro...

We present the 12-month results of a prospective trial of conversion from calcineurin inhibitors (CNI) to everolimus (EVL) in maintenance liver transplant (LT) recipients. Forty (M:F = 28:12; 54.9 +/- 11 years) patients were enrolled at a mean interval of 45.5 +/- 31.2 months from transplantation. Conversion was with EVL at a dosage of 0.75 mg b.i.d., withdrawal of antimetabolites, and a 50%-pe...

Electrophysiological conversion of chloride-dependent synapses from inhibitory to excitatory function, as a result of aberrant neuronal chloride homeostasis, is a known mechanism for the genesis of neuropathic pain. This paper examines theoretically how this type of synaptic conversion can disrupt circuit logic in spinal nociceptive circuits. First, a mathematical scaling factor is developed to...

Gene conversion is one of the major mutational mechanisms involved in the DNA sequence evolution of duplicated genes. It contributes to create unique patters of DNA polymorphism within species and divergence between species. A typical pattern is so-called concerted evolution, in which the divergence between duplicates is maintained low for a long time because of frequent exchanges of DNA fragme...