نتایج جستجو برای: microfilters 02 μ
تعداد نتایج: 63966 فیلتر نتایج به سال:
in this paper, we used tetranuclear copper (ii) schiff base complexes, [cu4 (μ-sal2hn) (μ-n3)2(n3)2] (1) and [cu4 (μ-salophen) (μ1, 1-n3)2(n3)2] (2), as new precursor in solid-state thermal decomposition for the synthesis of cuo nanoparticles. the crystallinity, purity and morphology of the cuo nanoparticles were characterized by fourier transform infrared (ft-ir), x-ray diffraction (xrd) and s...
The extracellular pH monitoring on culture media is indicative of the metabolic activity of the cells. However, their precise determination is commonly limited by the presence of cells that interfere on the measurement. A biophotonic lab-on-a-chip (bioPhLoC) for the accurate monitoring of the extracellular medium pH without interference of attached/detached cells is here presented. The bioPhLoC...
Explicit forms of IBM Hamiltonians with a generalized partial dynamical O(6) symmetry are presented and compared with empirical data in 162Dy. A dynamical symmetry corresponds to a situation in which the Hamiltonian is written in terms of the Casimir operators of a chain of nested algebras G1 ⊃ G2 ⊃ . . . ⊃ Gn , (1) and has the following properties. (i) Solvability. (ii) Quantum numbers related...
Synthesis of a natural proline-rich cyclopolypeptide - rolloamide A [8] was carried out by coupling of tri- and tetrapeptide units Boc-Phe-Pro-Val-OMe and Boc-Pro-Leu-Pro-Ile-OMe after proper deprotection at carboxyl and amino terminals using carbodiimide chemistry in alkaline environment followed by cyclization of linear heptapeptide segment in the presence of base. The structure of synthesize...
large areas of iran are under the influence of wind erosion thus it is important that we recognize three zones ofremoval, transportation and deposition. the deposition zone is very important due to more damages and tangibleeffects. in this study we try to obtain a comprehensive idea to persian desert with use of laboratory facilities, remotesensing, gis and field surveying. we survey 28 ergs in...
the objective of this study was to evaluate the presence of perchloroethylene (pce) and trichloroethylene (tce) in dry cleaning shops in tehran, iran. pce and tce are two most prevalent solvents in dry-leaning shops. air and effluent samples were collected in october to december 2011 from 10 dry-cleaning shops. analyses were performed by head-space gas chromatography technique. gas chromatograp...
We evaluated 10 microfilters for their ability to filter diluted sera without removing immunoglobulins (Ig) G, A, and M, albumin, and transferrin. In general, filters containing cellulose nitrate remove IgG from solution, the amount adsorbed being proportional to the IgG concentration in the solution. With some sera we noted IgA and IgM adsorption to cellulose-nitrate-containing filters, but th...
Tumor-associated macrophages (TAMs) derived from primary tumors are believed to facilitate circulating tumor cell (CTC) seeding of distant metastases, but the mechanisms of these processes are poorly understood. Although many studies have focused on the migration of CTCs, less attention has been given to TAMs that, like CTCs, derive from tumor sites. Using precision microfilters under low-flow ...
A SERIES OF STUDIES is reported on changes in physical properties of red cells that indicate abnormalities in their rigidity or deformability. Increased rigidity is a term used to describe changes in red cells leading to increased viscosity of flow, a shift to more Newtonian type of flow and lack of deformability as measured by packing under centrifugal force or by diminished flow through micro...
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