997 resultados para Ni-Cd batteries
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Skruv. Talvisen kylän ääniä: askeleita, maton tamppausta, liikenteen ääniä, lasten huutoa ja puron solinaa.
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Kaupungin ääniä, japanilaisia äänimainoksia, askelia. Tokio
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The objective of this paper is to investigate the physical and chemical quality of the water of the Descoberto River during the dry and rainy seasons by measuring pH, temperature, electric conductivity, total dissolved solids, turbidity, color, alkalinity and NO3-, SO4(2-), PO4(3-), NH4+, Cl- and HCO3-, and the elements Sr, Mo, Cd, Y, Ti, Ca, V, Mg, Fe, Si, Ni, Zr, Cu, Al, Cr, Mn, Ba, Co, Zn, P, Na and K. The results showed high concentrations in both seasons, with dilution along the course of the river, minimizing for a while problems that compromise the quality of the water of this source. However, a progressive deterioration can occur due to an increase in the discharge of pollutants, resulting from population growth, agricultural activities and other factors.
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Kaupunki. Liikenteen kohinaa, raitiovaunu kiertää kehää.
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Kaupunki. Liikenteen kohinaa, raitiovaunu kulkee ohi.
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Kaupungin äänimaisemaa: liikennettä, kirkonkellojen soittoa. Bissingen, Saksa.
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Pesulan ääniä, liikenteen ääniä ulkona. Cembra, Italia.
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Kaupunki, Santa Fe. Katuhälyä. Englanninkielistä puhetta, miehiä, naisia ja lapsia.
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Kaupunki. Liikenteen kohinaa, raitiovaunu kulkee ohi kaksi kertaa
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Thermal decomposition of [Bu4N]2[Zn(imnt)2] and [M(NH3)2(imnt)] complexes with M = Zn and Cd, and imnt = (bis 1,1-dicyanoethylene-2,2 dithiolate) in inert atmosphere was investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). Pyrolysis studies at different temperatures, 300, 400, 500, and 600 ºC, in N2 atmosphere were performed and the products were characterized by X-ray diffraction (XRD), infrared and Raman spectroscopy, and scanning electron microscopy (SEM). The products were identified as sulfide sub-micron particles, along with amorphous carbon. Particle sizes estimated by SEM were ca. 50 nm for the cationic complexes and 500 nm for the neutral complexes.
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Kaupunki. Suurkaupunki. Liikenteen ääniä ja ihmisten puheensorinaa.
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We have produced nanocomposite films of Ni:SiO2 by an alternative polymeric precursor route. Films, with thickness of ~ 1000 nm, were characterized by several techniques including X-ray diffraction, scanning electron microscopy, atomic force microscopy, flame absorption atomic spectrometry, and dc magnetization. Results from the microstructural characterizations indicated that metallic Ni-nanoparticles with average diameter of ~ 3 nm are homogeneously distributed in an amorphous SiO2 matrix. Magnetization measurements revealed a blocking temperature T B ~ 7 K for the most diluted sample and the absence of an exchange bias suggesting that Ni nanoparticles are free from an oxide layer.
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Kaupunki. Kaupunkiliikenteen hiljaisia taustaääniä sisältä äänitettynä.
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Kaupunki. Liikenteen kohinaa, autoja ja raitiovaunu kulkee ohi.
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We present studies involving metallic ions and the herbicide glyphosate. The metallic complexes of Cu(II), Zn(II), Mn(II), Ni(II), Cd(II), Pb(II), Cr(III), Fe(III), Co(III), ammonium, sodium, Ag(I), alkaline earth metals and of some lanthanides ions are described. The complexes are discussed in terms of their synthesis, identification, stability and structural properties, based on data from the current literature.