in this study, the effect of cement content on concrete performance in corrosive environments is investigated on concrete mixtures having the same water/cement (w/c) ratio. three w/c ratios (0.40, 0.45 and 0.50) were used and for each w/c ratio three mixtures were prepared with cement contents 350, 400 and 450 kg/m3. the compressive strength, electrical resistivity and chloride diffusivity of t...

in this study, the effect of cement content on concrete performance in corrosive environments is investigated on concrete mixtures having the same water/cement (w/c) ratio. three w/c ratios (0.40, 0.45 and 0.50) were used and for each w/c ratio three mixtures were prepared with cement contents 350, 400 and 450 kg/m3. the compressive strength, electrical resistivity and chloride diffusivity of t...

The evaluation of half-cell potential measurements in reinforced concrete (RC) members can be a key issue for civil engineers. primary reason this is that the interpretation based on available standards provides information related only to possibility corrosion concrete, but it does not provide clear perception influence capacity RC members. objective study two-fold: (1) explore level flexural ...

Corrosion of steel reinforcement is a major factor in the deterioration of highway and bridge infrastructure. A survey of the condition of a reinforced concrete structure is the first step towards its rehabilitation. A rapid, cost-effective and non-destructive condition survey offers key information on the evaluation of corrosion, and aids in the quality assurance of concrete repair and rehabil...

in this work the electrooxidation half-wave potentials of some benzoxazines were predicted from their structural molecular descriptors by using quantitative structure-property relationship (qsar) approaches. the dataset consist the half-wave potential of 40 benzoxazine derivatives which were obtained by dc-polarography. descriptors which were selected by stepwise multiple selection procedure ar...

mitochondrial functions have a major impact on t-cell functionality. in this study we characterized whether mitochondrial function in the neonatal t-cells differs from that in the adult t-cells during short t-cell activation. methods: we used fow cytometry methods to test mitochondrial mass and to monitor mitochondrial ca2+ levels, mitochondrial potential and superoxide generation in parallel w...

Background: Expressed sequence tags (ESTs) are sequences of cDNA fragments prepared from different tissue sources. There are over one million of these sequences in the publicly available database, and these sequences are believed to represent more than half of all human genes. The ESTs belong to different cDNA libraries, was prepared from one particular cell type, organ, or tumor. Therefore, th...

background: acute myeloid leukemia (aml) is an immunophenotypically heterogeneous malignant disease, in which cd34 positivity is associated with poor prognosis. osteopontin (opn) plays different roles in physiologic and pathologic conditions like: survival, metastasis and cell protection from cytotoxic and apoptotic stimuli. due to anti-apoptotic effect of opn in normal and malignant cells, sil...