نتایج جستجو برای: membrane filter technique
تعداد نتایج: 1085185 فیلتر نتایج به سال:
The results of exfoliative cytology studies in 50 patients with symptoms of large bowel disorder are analysed. Certain cases are described in detail. Of 23 patients with cancer, a positive cytological result was obtained in nineteen. One false positive result was recorded.Suggestions are made as to the usefulness of this investigative technique, and mention is made of the increased degree of ac...
Amino acid substitutions in platelet membrane glycoproteins result in alloantigens. Identifying these polymorphisms is important in alloimmune-mediated platelet disorders. Immunophenotyping platelet antigens can be limited by the unavailability of specific antisera. The goal of this work was to identify human platelet antigen genotypes in individuals using a technique that would circumvent the ...
Myocardial perfusion SPECT imaging with Tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. Though simple and straight forward the results produced by the technique is very much affected by the details being used. One of the main problems with the test, wh...
The air filters with high Bacterial Filtration Efficiency (BFE) should help protect people effectively against various air borne particles including bacteria. In general, antibacterial properties of nanofiber membranes are tested by the conventional agar diffusion test where the small piece of test specimen is placed on agar plate and inoculated with test microorganism and incubated. This metho...
abstract in order to investigate the removal of copper, nickel, zinc and chromium from industrial waste water by a sand–soil–organic matter filter column, this experiment was conducted at a completely randomized design with sixteen treatments and four replications. p.v.c tubes (columns) with 66.5 cm height and 10 cm diameter were chosen and filled from down to top by coarse gravel (15 cm), sand...
Ni nanowires are synthesized by template based electrochemical technique. A commercially available filter membrane of alumina anodic oxide (AAO) is used for the fabrication of nanowires. AAO membrane supported on copper substrate yields better hexagonal nanowires. Morphological studies of nanowires are carried out using scanning electron microscopy (SEM). The analysis shows the fabrication of v...
A membrane culture technique was developed for directly exposing microorganisms to test atmospheres. Inhibition and killing were calculated from comparisons with air-grown cultures. Direct colony counts were used with low inocula. With mass inocula, plate colony counts and optical-density measurements were made on resuspended filter populations. Bacteria, including Escherichia coli, were more s...
carbon membrane can be produced using a wide variety of polymer precursor materials via heat treatment process. a general concept route of precursor selection-preparation-modification-performance analysis platform for the carbon membrane has been proposed to promote the development of carbon membrane material for a wide range of application. the current review considers the recent progress of c...
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