Results 11 to 20 of about 1,373,001 (268)

Computing S-unit groups of orders [PDF]

open access: yesInternational Journal of Number Theory, 2020
Based on the general strategy described by Borel and Serre and the Voronoi algorithm for computing unit groups of orders we present an algorithm for finding presentations of [Formula: see text]-unit groups of orders. The algorithm is then used for some investigations concerning the congruence subgroup property.
openaire   +3 more sources

The $\phi$-order of solutions of linear differential equations in the unit disc

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
In this paper, some results on the $\phi$-order of solutions of linear differential equations with coefficients in the unit disc are obtained. These results yield a sharp lower bound for the sums of $\phi$-order of functions in the solution bases.
Lipeng Xiao
doaj   +1 more source

Optimization Method and Reduced-Order Steady-State Model for Variable-Speed Pump-Turbine Unit

open access: yesIEEE Access, 2021
Increased attention has been paid to the high-capacity variable-speed pumped storage to stabilize the large-scale renewable energy. Nevertheless, the optimum reference values of variable-speed units (i.e., the optimum speed and optimum gate opening) come
Weiwei Yao, Changhong Deng, Peng Peng
doaj   +1 more source

Growth and fixed points of solutions and their arbitrary-order derivatives of higher-order linear differential equations in the unit disc

open access: yesAdvances in Difference Equations, 2021
In this paper, we investigate the growth and fixed points of solutions of higher-order linear differential equations in the unit disc. We extend the coefficient conditions to a type of one-constant-control coefficient comparison and obtain the same ...
Yu Chen   +3 more
doaj   +1 more source

Gender differences in vaccine therapy: where are we in COVID-19 pandemic?

open access: yesMonaldi Archives for Chest Disease, 2021
Vaccination is one of the greatest achievements of public health. Vaccination programs have contributed to the decline in mortality and morbidity of various infectious diseases.
Tiziana Ciarambino   +7 more
doaj   +1 more source

Reconsidering Hilberseimer’s Chicago

open access: yesUrban Planning, 2020
The German architect and urbanist Ludwig Hilberseimer spent the second half of his career as an internationally influential urbanist, author, and educator while living and working in Chicago.
Philip Denny, Charles Waldheim
doaj   +1 more source

Experimental Research on Influence Factors of Fine-grained Hematite Flotation Concentrate Based on Orthogonal Test

open access: yesKuangchan zonghe liyong, 2023
This paper takes the fine-grained hematite concentrate as the research object. In order to explore the serious overflow loss of the thickening tank in the actual production of thickening and dehydration, the average sedimentation velocity of the ...
Zonggang Hu, Chuan Lu, Qin Zhang
doaj   +1 more source

Blood ordering practices in obstetric units in the United Kingdom [PDF]

open access: yesAnaesthesia, 1993
Summary A postal questionnaire on blood ordering practices and blood availability was sent to 89 randomly selected maternity units within the United Kingdom. The replies demonstrated a wide variation in crossmatching practices. Of those units that replied, 56% crossmatch for elective and 64% for emergency Caesarean section, 54% for ...
V A, Clark, G J, Wardall, E M, McGrady
openaire   +2 more sources

Robinson–Schensted correspondence for unit interval orders [PDF]

open access: yesSelecta Mathematica, 2021
56 pages, 53 figures.
Kim, Dongkwan, Pylyavskyy, Pavlo
openaire   +2 more sources

Maximization of Gasoline Yield in Fluidized Catalytic Cracking Unit Using Fractional Order IMC Controller [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
Optimization of the FCC unit is highly needed to improve the refinery’s economic benefits. The efficiency of operation of FCCU is significant to meet the global demand for gasoline which can be accomplished through better operating conditions, controller
Thomas John Kennady   +3 more
doaj   +1 more source

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