Materials Literature
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The aim of the present study was extended from obtaining information about the interaction of gamma rays with Makrofol DE 7-2 track detector to introduce the basis that can be used in concerning simple sensor for gamma irradiation and bio-engineering applications. Makrofol polymer samples were irradiated with 1.25 MeV…
Abstract The effects of various drying techniques, such as air, oven, freeze, and spray drying, on the morphological, thermal, and structural behaviors of two different nanofibrillated cellulose (NFC) materials were investigated. Field emission scanning electron microscopy (FE-SEM) observations indicated an interlaced…
It is known that there is a correlation between a cell membrane potential and the proliferation of the cell. The high proliferation capacity of liver cells can also be attributed to its specific cell membrane potential as liver cell is recognized as one of the most depolarized of all differentiated cells. We hypothesi…
Hemicelluloses were produced from pear pomace using direct alkaline extraction (sodium hydroxide and hydrogen peroxide) and two-step extraction with delignification pre-treatment (acidified sodium chlorite/sodium hydroxide). The aim of the study was to compare the extraction yield, composition and physicochemical char…
Graphene films prepared by heating the SiC(000-1) surface (the C-face of the {0001} surfaces) in a Si-rich environment are studied using low-energy electron diffraction (LEED) and low-energy electron microscopy (LEEM). Upon graphitization, an interface with rt(43) x rt(43)-R7.6 degree symmetry is observed by in situ L…
We study the tunneling of conduction electrons through a (110)-oriented single-barrier heterostructure grown from III-V semiconductor compounds. It is shown that, due to low spatial symmetry of such a barrier, the tunneling current through the barrier leads to an electron spin polarization. The inverse effect, generat…
We apply quantum rate theory to calculate the transition rates as hydrogen or deuterium atoms escape from a vacancy trap in iron into a neighbouring metastable site. We determine transition rates and corresponding activation energies over a wide range of temperatures covering both the quantum and classically dominated…
Several years back Angliker et al [Chem. Phys. Lett. 1982, 87, 208] predicted nonacene to be the first linear acene with the triplet state $1^{3}B_{2u}$ as the ground state, instead of the singlet $1^{1}A_{g}$ state. However, contrary to that prediction, in a recent experimental work Tönshoff and Bettinger [ Angew. Ch…
The experiments have been carried out using the transverse magneto-optical Kerr effect in perpendicular circular and axial magnetic field. There were two schemes of the experiments, depending on the combination of magnetic fields: • transverse Kerr effect at sweeping of circular field HCIR-AC, which was produced by an…
Glass-covered amorphous microwires of nominal composition Co67Fe3.85Ni1.45B11.5Si14.5Mo1.7 (metallic nucleus radius R = 8.6 µm, glass coating thickness T = 0.6 µm), supplied by TAMAG Iberica S.L., were obtained by the Taylor-Ulitovski method [7, 8]. The experiments were performed using a transverse magneto-optical Ker…
This specification covers staple or continuous filament carbon/graphite yarn valve stem compression packing, suitable for use as end-rings on packing systems for valves. Intended services include steam, hydrocarbons, water and non-oxidizing chemic
Optical effects that demonstrate the influence of the magnetization on the state of light are known as magneto-optical effects. Two main magneto-optical phenomena are usually distinguished: the Faraday effect and the Kerr effect. The Faraday effect is characterized by the rotation of the polarization plane and the cha…
This chapter is devoted to the Kerr effect study of the magnetization reversal at the surface of the glass-covered Co-rich microwires with different value and sign of the saturation magnetostriction constant. Magnetic and mechanical properties of these wires were studied in Ref. [1], in which a dramatic dependence of…
This specification covers formulating specifications for purchases of a high octane unleaded test fuel under contract and is intended solely for use by purchasing agencies for testing purposes. This specification also defines a specific type of hi
The recent demonstration of single-atom thick, sp3-hybridized group 14 analogues of graphene enables the creation of materials with electronic structures that are manipulated by the nature of the covalently bound substituents above and below the sheet. These analogues can be electronically derived from isolated (111)…
The GMI effect is basically the surface effect, and our previous investigation using the magneto-optical Kerr effect showed that the transformation of the surface magnetic structure has a great influence on the value of the GMI ratio [1]. A special role in the correlation between the results of the magnetoimpedance an…
Significance and Use 5.1 Dispersancy is the property that allows oil to suspend and carry away pollutants of diverse sources such as soot from combustion, metallic particles from wear, corrosion of mechanical parts, and insoluble products resulting from
The results of the polar-MOKE microscopy experiments are presented in Fig. 13.3. The magnetization reversal begins from the mono-domain state (Fig. 13.3a). Notably, one of the interesting results obtained is that the magnetization reversal could start from practically any part of the microwire.
In the title compound, [Mn(NCS)2(C15H14N2O4)(H2O)3]·2H2O, the metal ion is octa-hedrally coordinated by three water mol-ecules, one carboxyl-ate O atom from a 1,1'-(propane-1,3-di-yl)bis-(pyridinium-4-carboxyl-ate) ligand and two N atoms from two thio-cyanate anions in cis positions, forming a mononuclear complex mol-…
以高岭土为载体，Dawson结构磷钨酸（H6P2W18O62·13H2O）为活性组分制备了负载型催化剂H6P2W18O62/高岭土，并通过FT-IR、XRD、SEM和EDS对催化剂进行表征。以催化合成乙酰水杨酸为探针反应，考察了催化剂的酸催化性能。结果表明，在优化反应条件为H6P2W18O62负载量为40%，w（H6P2W18O62/高岭土）=7.2%（基于水杨酸的质量），反应温度为90℃，反应时间为40min时，乙酰水杨酸收率达90.2%，催化剂重复使用5次，乙酰水杨酸收率仍可达到85.1%。该催化剂具有价廉易得、催化活性高、后处理工艺简单、不腐蚀设备、无环境污染、可重复使用等优点。