نتایج جستجو برای: constant and variable stoichiometry

تعداد نتایج: 16869885  

Journal: :international journal of civil engineering 0
m. gharouni nik assistant professor, school of railway engineering, iran university m. fathali phd student, civil engineering department, amirkabir university

geometrical profile (roughness) of joint surfaces influences the behaviour of rock joints under shear loading. with regard to the dilation, there are two models of direct shear test that may simulate the original loading condition existing in the location from where the specimens have been sampled. the first model in which the normal load is constant (cnl) and the discontinuity is free to dilat...

A. A. Abbasian G. A. Sheikhzadeh M. Ebrahim-Qomi N. Hajialigol, R. Heidary

In the present study, mixed convection laminar flow around an adiabatic body in a Lid-driven enclosure filled with nanofluid using variable thermal conductivity and variable viscosity is numerically investigated. The fluid around the body in the enclosure is a water- based nanofluid containing Al2O3 nanoparticles. The Vertical enclosure’s walls are maintained at constant cold temperature an...

2004
Mark E. Baird Jason H. Middleton

Unicellular algae such as phytoplankton and benthic microalgae have an elemental ratio of carbon to nitrogen to phosphorus (C/N/P) of approximately 106:16:1, known as the Redfield ratio. Benthic plants, including benthic macroalgae and seagrass, have a significantly different and more variable C/N/P ratio, with a median of 550:30:1, herein called the Atkinson ratio. In this paper, the implicati...

Rohani , Soheila, Hajighasemi , Fatemeh,

Background: Immunoglobulins (Igs) are protective glycoproteins specifically identify and eradicate microbes. Fragment of antigen binding (Fab) is a portion of antibody which binds to antigen and consists of one variable and one constant domain of one heavy and one light chain. Idiotypes, epitopes situated on Igs variable region, could be exploited to monitor and target malignant B cells and are...

2012
J. Thad Scott James B. Cotner Timothy M. LaPara

Prokaryotic heterotrophs (hereafter, bacteria) represent a large proportion of global biomass, and therefore bacterial biomass stoichiometry likely exerts control on global phosphorus (P), carbon (C), and nitrogen cycling and primary productivity. In this study we grew recently isolated freshwater heterotrophic bacteria across an ecologically relevant range of resource C:P ratios (organic C to ...

     Most of the biological phenomena are influenced by intermolecular recognition and interaction. Thus, understanding the thermodynamics of biomacromolecule ligand interaction is a very interesting area in biochemistry and biotechnology. One of the most powerful techniques to obtain precise information about the energetics of (bio) molecules binding to other biological macromolecules is isoth...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

F. Mohseni, M. Abbasi M. Panjepour

The effect of mechanical activation on structural changes and kinetics of carbothermic reduction of hematite with graphite was studied in this research. Hematite powder mixture with graphite (with stoichiometry ratio C/O=1) was milled for the time periods of zero to 50 hours, and the structural changes were studied using X ray diffraction (XRD). The effect of mechanical activation on the kineti...

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