The local support basis representation of the ‘weighted v-spline’ i s de r ived in t e rms o f doub le kno t cub ic B-sp l ines , so p rov id ing a conven ien t fo rm fo r comput ing and ana lys ing the represen ta t ion .

Two new refractory amorphous high-entropy alloys (RAHEAs) within the W--Ta--Cr--V and W--Ta--Cr--V--Hf systems were herein synthesized using magnetron-sputtering tested under high-temperature annealing displacing irradiation \textit{in situ} Transmission Electron Microscopy. While WTaCrV RAHEA was found to be unstable such tests, additions of Hf in this system composing a quinary WTaCrVHf route...

Using a high-flux solar furnace, loosely compacted powders of Va-group transition metal (V, Nb, and Ta) were reacted with stream NH3 gas (uncracked gas) being heated by concentrated beam to temperature (T) range between 600 1000 °C. From V, sub-nitride V2N (γ phase) hypo-stoichiometric mono-nitride VN possessing fcc (face-centered cubic) crystal lattice structure (δ synthesized. On the other ha...

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Trialkylsiloxy-modified Ta(v) centers on mesoporous silica exhibit excellent selectivity for epoxide formation (>98% after 2 h) in the oxidation of cyclohexene using aqueous H2O2 as the oxidant; the modified catalysts exhibit an increased lifetime, retaining high selectivity after 6 h of reaction (>95% epoxide).

in this study, the effect of foliar spray with calcium chloride (0, 0.75, 1.5 and 3 g l-1) during 2, 4 and 6 weeks before commercial harvesting time of apple fruit cv. ‘gala’ and ‘delbarestival’ which trained in three different systems (v shape, hightech and cordon) was investigated. the results showed that types of training systems and foliar application of calcium can affect on fruits quality...

Energy cost of transport per unit distance (CoT; J·kg-1·km-1) displays a U-shaped fashion in walking and a linear fashion in running as a function of gait speed (v; km·h-1). There exists an intersection between U-shaped and linear CoT-v relationships, being termed energetically optimal transition speed (EOTS; km·h-1). Combined effects of gradient and moderate normobaric hypoxia (15.0% O2) were ...

The authors report on the evaluation of oxide scale and interface microstructure a Cr–Nb–Ta–V–W refractory high entropy alloy (HEA) at elevated temperatures. HEA is oxidized 700 800 °C in lab air substrate/oxide investigated. Combined situ X-ray diffraction (XRD) coupled with ex scanning electron microscopy (SEM) energy dispersive spectrometry (EDS) analyses characterize confirm phases present ...

In tropical and subtropical latitudes, woody plants known as mangroves flourish in slimy, anaerobic soils on the boundary between land sea. They can withstand extreme weather conditions like high temperatures, unreliable tides, strong winds, salt. The objective of this study was to determine concentration nine trace elements (Hf, Ga, Ba, V, Cs, Sc, Sb, Ta, Co) sediment mangrove forest along wes...


 A tanulma?ny a magyart idegen nyelvke?nt tani?to? nyelvtana?rok digita?liseszko?z-haszna?lata?ro?l ad a?ttekinte?st egy saja?t empirikus vizsga?lat segi?tse?ge?vel. Ro?viden bemutatja magyar mint nyelv (MID) tani?ta?sa?ban ele?rheto? e?s haszna?lt informa?cio?s-kommunika?cio?s technolo?gia?t (IKT) alkalmazo? oktata?si megolda?sokat, majd 2020 nyara?n ve?gzett kutata?s eredme?nyei alapja?...