Results 41 to 50 of about 20,938 (205)

Compilation and reliability and validity test of comfort scale for patients after nasal packing

open access: yesHuli yanjiu, 2020
ObjectiveTo develop a comfort scale for patients after nasal packing,and to test its reliability and validity.MethodsKolcaba comfort scale was modified and adjusted according to the characteristics of patients after nasal packing.Seven experts and 210 ...
LI Chenjiao, WANG Binquan
doaj  

Packing measures and dimensions on cartesian products [PDF]

open access: yesPublicacions Matemàtiques, 2013
Packing measures and Hewitt-Stromberg measures on products of metric spaces are investigated. New product inequalities for packing and lower packing dimensions are esatblished and used to solve a problem of Hu and Taylor regarding packing dimension.
openaire   +7 more sources

Methodology to Solve Multi-Dimentional Sphere Packing Problems [PDF]

open access: yesJournal of Mechanical Engineering, 2019
This paper discusses the problem of optimally packing spheres of various dimensions into containers of arbitrary geometrical shapes. According to the international classification, this problem belongs to Sphere Packing Problems (SPPs).
Georgiy N. Yaskov
doaj   +1 more source

The practical application of fractal dimension in water treatment practice-the impact of polymer dosing [PDF]

open access: yes, 2008
The application of floc fractal dimension has been investigated in this work to determine if this parameter can have operational significance in water treatment.
Jefferson, Bruce   +4 more
core   +1 more source

Structure of pores in solid porous bodies. Part I [PDF]

open access: yesНанотехнологии в строительстве, 2018
Porous materials are formed from dispersed particles of various shapes. The porous structure of such materials is determined by the shape and nature of the packing of their structural units.
KUDRYAVTSEV Pavel Gennadievich
doaj   +1 more source

Sphere packing and quantum gravity

open access: yesJournal of High Energy Physics, 2019
We establish a precise relation between the modular bootstrap, used to con- strain the spectrum of 2D CFTs, and the sphere packing problem in Euclidean geometry. The modular bootstrap bound for chiral algebra U(1) c maps exactly to the Cohn-Elkies linear
Thomas Hartman   +2 more
doaj   +1 more source

Assouad Dimensions and Lower Dimensions of Some Moran Sets

open access: yesJournal of Mathematics, 2020
We prove that the low dimensions of a class of Moran sets coincide with their Hausdorff dimensions and obtain a formula for the lower dimensions.
JiaQing Xiao
doaj   +1 more source

Structure of pores in solid porous bodies. Part II [PDF]

open access: yesНанотехнологии в строительстве, 2018
Porous materials are formed from dispersed particles of various shapes. The porous structure of such materials is determined by the shape and nature of the packing of their structural units.
KUDRYAVTSEV Pavel Gennadievich
doaj   +1 more source

Packing dimension of mean porous measures

open access: yes, 2009
We prove that the packing dimension of any mean porous Radon measure on Rd may be estimated from above by a function which depends on mean porosity. The upper bound tends to d . 1 as mean porosity tends to its maximum value.
Järvenpää, E.   +11 more
core   +2 more sources

Bowen’s Equations for Weighted Upper Metric Mean Dimension with Potential

open access: yesMathematics
In this paper, we define the weighted upper metric mean dimension with potential and derive its corresponding Bowen’s equation. Furthermore, we introduce the weighted BS metric mean dimension and the weighted packing BS metric mean dimension on the ...
Yuanyuan Zhang, Yong Ji, Yunping Wang
doaj   +1 more source

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