Bu çalışmada Kars ilinden elde edilen yerel kil kullanılarak metil mavisinin adsorpsiyonu incelenmiş ve Taguchi metodu (ortogonal L9 tasarım matrisi) ile parametreler optimize edilmiştir. Burada sıcaklık (20-25-30°C), boyar madde konsantrasyonu (80-120-160 mg/L) adsorbent miktarı (0.04-0.08-0.12 g) adsorpsiyona etki eden olarak seçilmiştir. Çalışmada %98.6’sı üzerine adsorplanarak giderilmiştir...

In learning undergraduate controls, one of the most abstract and confusing concepts is that of phase margin (PM). One frustration is the difficulty in conceptualizing what physical process could produce the pure phase shift referred to in the definition of PM. Another frustration occurs when simple second-order formulas given for PM do not work in practice. Finally, when resonances occur, there...

OBJECTIVE Polymyositis (PM) is a rare systemic idiopathic inflammatory myopathy. Hyaluronic acid (HA) is closely linked to inflammatory cellular reactions and disease activity. Increased serum levels of HA have been reported in several inflammatory diseases, but currently, there are no studies analysing the HA in PM. Thus, clinical association of HA with PM in patients was determined in the pre...

We presentChandra and XMM-Newton observations of 12 bright (f(2−10keV) > 10 erg cm s) sources from the ASCA SHEEP (Search for the High Energy Extragalactic Population) survey. Most of these have been either not observed or not detected previously with the ROSAT mission and therefore they constitute a sample biased towards hard sources. The Chandra observations are important in locating with acc...

Bubble tea drinks contained tapioca pearls, that can stimulate mastication. Chewing pearls may saliva production. Increased salivary secretion is thought to be correlated with an increase in inorganic components and α-amylase (SAA). This study aimed evaluate the effect of bubble on SAA phosphate (PO 4 3- ) levels. Subjects were 15 people a total sample 60. Each subject drank pearl for 3 days fi...