نتایج جستجو برای: mixed scale formation

تعداد نتایج: 1281919  

Journal: :Journal of Japan Oil Chemists' Society 1990

Journal: :Journal of Biological Chemistry 1927

Journal: :Journal of the Mineralogical Society of Japan 1974

Hossein Mirsaeedghazi, Mohammad Aboonajmi Mohammad Hossein Kianmehr Morteza Aliasghari Aghdam,

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

Hossein Mirsaeedghazi, Mohammad Aboonajmi Mohammad Hossein Kianmehr Morteza Aliasghari Aghdam,

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

The synthesis of calcium tetraborate was investigated in a temperature ranging from 800℃ to 900℃ using the solid-state reaction method. The synthesis was done using ammonium tetraborate tetrahydrate as the source of boron. At temperatures of 800 ℃ and 880 ℃, the mixed phases from different compounds were formed. At the optimum temperature of 840℃, the mixed phase was only composed of meta and t...

1993
S. N. RAI D. E. MATTHEWS D. R. KREWSKI

Information derived from interim sacrifices or on cause-of-death is routinely used in the statistical analyses of carcinogenicity experiments involving occult tumours. In this article, the authors describe a simple semi-parametric model which does not require this information. Natural deaths during the experiment and the usual terminal sacrifice provide sufficient information to ensure that the...

2009
T. Y. Soror

This paper presents the results of study that was undertaken to investigate the ability of a new antiscale, polyacrylamide in solving problems found in cooling water systems. The effects of the polymer on C-steel and copper dissolution in synthetic cooling water environment were studied through scale, Tafel, and Linear polarization measurements. The results obtained from this study showed that ...

Journal: :Symposia of the Society for Experimental Biology 1971
F H Crick

There are many kinds of patterns in biology and a number of quite different mechanisms for generating them. For example, patterns due to pigment in some cases depend largely on variations in the movement of melanocytes, as in the case of chicken feathers. Other patterns are likely to be produced, at least in part, by lineage mechanisms. This is probably true in the formation of bristles in inse...

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