Results 261 to 270 of about 931,522 (309)

Spiraling zero-order Bessel beam

Optics Letters, 2009
The question that we are addressing concerns the possibility of creating a zeroth-order Bessel-like beam that spirals around the axis of propagation. The analytical features of the beam propagation are studied theoretically. Approximations to such a light field can be experimentally realized by using an axicon and a hologram.
Vygandas Jarutis, Aidas Matijošius, DI TRAPANI, PAOLO, Algis Piskarskas   +3 more
openaire   +3 more sources

Zeros of sampled systems with fractional order hold implemented by zero order hold

1997 IEEE International Conference on Intelligent Processing Systems (Cat. No.97TH8335), 2002
For a sampled control system, replacing zero order hold with fractional order hold has been shown to improve the stability of zeros of the system. However, it is difficult to use the fractional order hold in practice. In this study, an approximated method of using fractional order hold is proposed.
M. Ishitobi, null Qin Zhu
openaire   +1 more source

Pharmacometric modeling with the zero-order hold

Journal of Pharmacokinetics and Pharmacodynamics
Solving models comprised of nonlinear differential equations (DEs) in NONMEM using ADVAN6 or ADVAN13 typically requires substantially longer run times than models comprised of linear DEs, which in some cases allow for analytical solutions. Often the need to use nonlinear DE solvers results from pharmacokinetic (PK) variations over the dosing interval ...
Eric L. Haseltine, Violeta Rodriguez-Romero   +1 more
openaire   +2 more sources

Note on the Calculation of Zero Order Eigenfunctions

Physical Review, 1931
An elementary procedure is outlined for obtaining zero approximation eigenfunctions of many electron problems. The procedure allows a calculation of these functions as linear combinations of products of functions, each involving one electron only. The proper combinatin of products for one of the terms of highest multiplicity may, as a rule, be obtained
Gray, Newton M., Wills, Lawrence A.
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Zero Order Oxidation of Tolbutamide in vivo

Nature, 1962
IT has been shown that in 4 out of 5 test subjects carboxytolbutamide [1-butyl-3-p-carboxyphenylsulphonylurea] was excreted in the urine by a first-order process following the oral or intravenous administration of tolbutamide [1-butyl-3-p-tolylsulphonylurea]1; furthermore, that the rate constant found for this excretion was the rate constant for the in
openaire   +2 more sources

Phase Space Representations of Zero-Order Bessel Beams and Superimposed Zero-Order Bessel Beams

Journal of Geometry and Symmetry in Physics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
dela Cruz, Franulfo L., Guerrero, Raphael A., Nable, Job A.   +2 more
openaire   +2 more sources

β-Cyclodextrin-based metal-organic framework as a carrier for zero-order drug delivery

Materials Letters, 2021
Haobin Huang
exaly  

Pharmacokinetics: first order or zero order?

Food and Cosmetics Toxicology, 1976
openaire   +2 more sources

Zero-order-free complex beam shaping

Optics and Lasers in Engineering, 2022
Yansheng Liang, Xue Yun, Minru He
exaly  

Color image triple zero-watermarking using decimal-order polar harmonic transforms and chaotic system

Signal Processing, 2021
Zhiqiu Xia, Chunpeng Wang
exaly