نتایج جستجو برای: آلیاژ fe b
تعداد نتایج: 971127 فیلتر نتایج به سال:
Pot and field experiments were done to establish the effect of Rhizobium inoculation, Molybdenum and lime supply on the availability of micronutrients (Cu, Zn, Mn, Fe, B and Mo) in Phaseolus vulgaris L. In both field and pot experiments, Rhizobium inoculation significantly improved uptake of Mn, Fe, Cu, Zn, B and Mo in all organs (roots, shoots, pods and whole plants) except the Mo uptake in ro...
With the aim of applying to a magnetic core material, the effect of ribbon thickness on the magnetic properties of a (Fe, Co)-Si-B-P-Cu alloy ribbon was investigated. It is found that the Si addition in (Fe, Co)-Si-B-P-Cu nanocrystalline alloy increased the saturation magnetic flux density (Bs), but degraded the coercivity (Hc), suggesting that the Si addition should be suppressed to a little a...
The transformed phenotype of rat FE-8 cells transfected by an activated human HRAS gene was suppressed upon fusion with normal cells. An experimental approach was developed to identify and isolate a human gene capable of suppressing the transforming activity of the HRAS oncogene in FE-8 cells. Genomic DNA from human placenta was introduced into FE-8 cells by cotransfection with the plasmid pY3 ...
Nonliving biomass of Sargassum, a brown marine alga, is capable of binding more than 10% of its dry weight in toxic cadmium ions. Although ubiquitous iron interferes with Cd uptake, only approximately 4.5% of it is sequestered (biomass dry weight). Biosorption of both metals at ph 4.5 could be described by Langmuir-type isotherms with b, the affinity-related coefficient (Cd: b = 0.015; Fe: b = ...
OBJECTIVES The Burkholderia cepacia complex is a group of pathogens that can cause severe pulmonary infections in cystic fibrosis (CF) patients. The aim of the present study was to investigate the in vitro activity of gallium against planktonic and biofilm-grown B. cepacia complex isolates. METHODS Six B. cepacia complex isolates (belonging to three different species) as well as Pseudomonas a...
برای تعیین شاخصهای انحراف از درصد بهینه (dop) و روش تلفیقی تشخیص و توصیه (dris) ارزیابی وضعیت تغذیهای پیاز (allium cepa l.) و مقایسه دو روش مذکور، نمونههای برگ از 50 مزرعه جمعآوری و غلظتهای عناصر غذایی n، p،k ، ca،mg ،fe ،mn ، zn ،cu و b تعیین شدند. با توجه به مقدار عملکرد، مزارع به دو گروه، مزارع با عملکرد بالا و پایین تقسیم شدند. نرمهای dris برای نسبتهای مختلف عناصر غذایی تعیین شدند. ...
The interaction between the hydroxylase component of methane monooxygenase (MMO) from Meth~ococcus capsu/atus (Bath), the coupling protein of the MMO enqme system (component B) and substrate has been investigated by using Fe K~dge x-ray absorption spectros-copy (MS). Fe K-edge extended x-ray abso~tion fine stmcture (EXAFS) studies of the semimet form of the hydroxylase in the presence of the co...
We explored the possibility of Pr-Fe-B and (Pr0.75Ce0.25)-Fe-B based hot-deformed magnets as magnetic field source for cryogenic refrigeration. Thanks to elimination spin reorientation effect in rare earth (RE)-Fe-B system, magnet shows a large remanence µ0Mr = 1.75 T with coercivity 7.4 at 20 K. To our surprise, even higher 1.76 4.8 The measured maximum energy product anisotropic is 612 kJ/m3 ...
To clarify the effect of alloying elements (M) on grain boundary segregation behavior boron (B) and carbon (C) in α-iron, B, C was evaluated thermodynamically for Fe–B–1.0 at.%M Fe–C–1.0 ternary systems (M: Al, Ti, V, Cr, Mn, Nb, Mo) using parallel tangent law proposed by Hillert. In this calculation, Gibbs energies liquid phase Fe–B–M Fe–C–M were applied to those boundaries. According calculat...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید