Results 261 to 270 of about 85,837 (306)

A comparison study of SC biquads in the realisation of SC filters

Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94, 2002
A comparison for SC filter realisation based on different biquads is given. The total capacitance, capacitance spread, sensitivity, non-idealities and dynamic range of the designed filters are presented. Some conclusions are obtained as very useful guidelines for the choice of a suitable biquad structure according to the nature of the filter problem. >
Lu Yue, John I. Sewell
openaire   +1 more source

Thermodynamic analysis of Al–Sc, Cu–Sc and Al–Cu–Sc system

Journal of Alloys and Compounds, 2010
Encouraged by the promising application of the Al–Cu–Sc system in the development of high strength aluminum alloy, the Al-rich region of this system was assessed by the CALPHAD approach. In order to make the models used for the phases in the three binary sub-systems compatible with each other, Al–Sc and Cu–Sc system were remodeled.
H. Bo, L.B. Liu, Z.P. Jin
openaire   +1 more source

Radiative Lifetimes in Sc I-Sc III

Physica Scripta, 1971
We have studied the spectra of scandium (600-6 000 ?) with the beam-foil method. In the v.u.v. a few previously unreported Sc III transitions appeared, as well as several well-known Sc III multiplets, whereas most lines in the air region were ascribed to earlier classified Sc I and Sc II transitions. We also measured the mean lifetimes of 20 excited Sc
R Buchta, L J Curtis, I Martinson, J Brzozowski   +3 more
openaire   +1 more source

Possibilities and Problems of Some <sc>high</sc> <sc>energy</sc> <sc>fuels for</sc> <sc>aircraft</sc>

SAE Technical Paper Series, 1959
<div class="section abstract"><div class="htmlview paragraph">BORON compounds offer a heat of combustion 40% greater than that of aircraft fuels in current use. Diborane and pentaborane have burned satisfactorily in turbojets, afterburners, and ramjets.
openaire   +1 more source

Research on SC Competitive Model and SC Coordination

Logistics, 2009
This paper studies the competitive model of two supply chains and SC coordination under SC competition. First, we separate demand using the consumer choice theory and obtain the demand distribution function of each product from the given demand distribution function of two products.
Bing Xu, Dao-li Zhu
openaire   +1 more source

The Sc+–OH and Sc+–OCH3 bond energies in ScOH+, ScOCH3+, Sc(OH)2+, ScOHOCH3+, and Sc(OCH3)2+

Chemical Physics Letters, 1998
Abstract The geometries of ScOCH 3 + , ScOHOCH 3 + and Sc(OCH 3 ) 2 + have been optimized and the zero-point energies computed using the B3LYP approach. The Sc + –OH and Sc + –OCH 3 bond energies have been computed at the B3LYP and CCSD(T) levels of theory. These results are compared to the previous results for ScOH + and Sc(OH) 2 + . The Sc +
Charles W Bauschlicher Jr, Harry Partridge   +1 more
openaire   +1 more source

the behavior of R <sc>adiation-R</sc> <sc>esistant</sc> ANP T <sc>URBINE</sc> L <sc>UBRICANTS</sc>

SAE Technical Paper Series, 1959
<div class="section abstract"><div class="htmlview paragraph">RADIATION can produce almost instantaneous failure of modern aircraft lubricants, tests at Southwest Research Institute show. Two types of failures demonstrated are rapid viscosity rise and loss of heat conductivity.
J. M. Clark, G. C. Lawrason
openaire   +1 more source

Sc

2005
H. R. Schober, P. H. Dederichs
  +4 more sources

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2017
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openaire   +1 more source

Indirect Comparison of 10 kHz Spinal Cord Stimulation (SCS) versus Traditional Low-Frequency SCS for the Treatment of Painful Diabetic Neuropathy: A Systematic Review of Randomized Controlled Trials

Biomedicines, 2022
Bryan C Hoelzer, Rod S Taylor, Taylor Rod S   +2 more
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