Results 31 to 40 of about 149,239 (310)

Comparative Study on the Macroscopic and Microscopic Properties of UHPC Mixed with Limestone Powder and Slag Powder

open access: yesGeofluids, 2021
This paper explores the development laws of the fluidity, compressive strength, and autogenous shrinkage of ultrahigh performance cement (UHPC) mixed with limestone powder (LP) and highly active ground slag powder (SP).
Menghui Yang   +4 more
doaj   +1 more source

Some typical properties of dimensions of sets and measures

open access: yesAbstract and Applied Analysis, 2005
This paper contains a review of recent results concerning typical properties of dimensions of sets and dimensions of measures. In particular, we are interested in the Hausdorff dimension, box dimension, and packing dimension of sets and in the Hausdorff ...
Józef Myjak
doaj   +1 more source

On the Mass Fractal Character of Si-Based Structural Networks in Amorphous Polymer Derived Ceramics

open access: yesNanomaterials, 2015
The intermediate-range packing of SiNxC4−x (0 ≤ x ≤ 4) tetrahedra in polysilycarbodiimide and polysilazane-derived amorphous SiCN ceramics is investigated using 29Si spin-lattice relaxation nuclear magnetic resonance (SLR NMR) spectroscopy.
Sabyasachi Sen, Scarlett Widgeon
doaj   +1 more source

Optimized packing multidimensional hyperspheres: a unified approach

open access: yesMathematical Biosciences and Engineering, 2020
In this paper an optimized multidimensional hyperspheres packing problem (HPP) is considered for a bounded container. Additional constraints, such as prohibited zones in the container or minimal allowable distances between spheres can also be taken into ...
Yuriy Stoyan   +5 more
doaj   +1 more source

Transcendental Julia sets with fractional packing dimension [PDF]

open access: yesConformal Geometry and Dynamics of the American Mathematical Society, 2021
We construct transcendental entire functions whose Julia sets have packing dimension in ( 1 , 2 ) (1,2) . These are the first examples where the computed packing dimension is not 1 1 or 2 2 . Our analysis will allow us further show that the set of packing dimensions
openaire   +3 more sources

Experimental and Numerical Studies on Water Cooling Tower Performance [PDF]

open access: yesEngineering and Technology Journal, 2007
Theoretical and experimental studies were conducted on forced draftwater cooling tower. In such towers, the heat and mass transfer take placefrom the hot water to the bulk air, which passes through the tower.
Waheed Mohammad, Jalal Jalil
doaj   +1 more source

Random packing of spheres in Menger sponge

open access: yes, 2013
Random packing of spheres inside fractal collectors of dimension 2 < d < 3 is studied numerically using Random Sequential Adsorption (RSA) algorithm. The paper focuses mainly on the measurement of random packing saturation limit.
Adamczyk Z.   +6 more
core   +1 more source

Hausdorff and packing dimension of fibers and graphs of prevalent continuous maps [PDF]

open access: yes, 2015
The notions of shyness and prevalence generalize the property of being zero and full Haar measure to arbitrary (not necessarily locally compact) Polish groups.
Balka, Richárd   +2 more
core   +2 more sources

Quasisymmetric Minimality on Packing Dimension for Homogeneous Perfect Sets

open access: yesAxioms
The quasisymmetric minimality for fractal sets is a hot research topic for scholars focused on the fractal geometry and quasisymmetric mappings. In this paper, we study the quasisymmetric minimality on packing dimension for homogeneous perfect sets.
Shishuang Liu, Yanzhe Li, Jiaojiao Yang
doaj   +1 more source

Jamming at Zero Temperature and Zero Applied Stress: the Epitome of Disorder [PDF]

open access: yes, 2003
We have studied how 2- and 3- dimensional systems made up of particles interacting with finite range, repulsive potentials jam (i.e., develop a yield stress in a disordered state) at zero temperature and applied stress. For each configuration, there is a
A. Rahman   +77 more
core   +2 more sources

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