Results 41 to 50 of about 8,195,688 (291)

Structural Complexity of DNA Sequence [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2013
In modern bioinformatics, finding an efficient way to allocate sequence fragments with biological functions is an important issue. This paper presents a structural approach based on context-free grammars extracted from original DNA or protein sequences. This approach is radically different from all those statistical methods.
Cheng-Yuan Liou   +3 more
openaire   +3 more sources

Spectroscopic-network-assisted precision spectroscopy and its application to water

open access: yesNature Communications, 2020
Precision-spectroscopy techniques can accurately measure lines in constrained frequency and intensity ranges. The authors propose a spectroscopic-network-assisted precision spectroscopy method by which transitions measured in a narrow range provide ...
Roland Tóbiás   +8 more
doaj   +1 more source

On the Wake Structure in Streaming Complex Plasmas [PDF]

open access: yes, 2012
The theoretical description of complex (dusty) plasmas requires multiscale concepts that adequately incorporate the correlated interplay of streaming electrons and ions, neutrals, and dust grains.
  +24 more
core   +2 more sources

Low-Temperature Magnetothermodynamics Performance of Tb1-xErxNi2 Laves-Phases Compounds for Designing Composite Refrigerants

open access: yesCrystals, 2022
In this paper, the results of heat capacity measurements performed on the polycrystalline Tb1-xErxNi2 intermetallic compounds with x = 0.25, 0.5 and 0.75 are presented.
Jacek Ćwik   +5 more
doaj   +1 more source

Dimension and the Structure of Complexity Classes

open access: yesTheory of Computing Systems, 2022
We prove three results on the dimension structure of complexity classes. 1. The Point-to-Set Principle, which has recently been used to prove several new theorems in fractal geometry, has resource-bounded instances. These instances characterize the resource-bounded dimension of a set $X$ of languages in terms of the relativized resource-bounded ...
Jack H. Lutz   +2 more
openaire   +4 more sources

Simulation Study of Aluminum Alloy Ribbed Member Spinning with Ultrasonic Vibration

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Flow spinning process is beneficial to realizing the integral forming of the ribbed members, but the height of the inner rib that can be formed is limited. Therefore, an ultrasonic assisted method was introduced into the flow spinning process to increase
LI Xiaokai, ZHAO Yixi, YU Zhongqi, ZHU Baohang, CUI Junhui
doaj   +1 more source

Complex band structure and electronic transmission

open access: yes, 2017
The function of nano-scale devices critically depends on the choice of materials. For electron transport junctions it is natural to characterize the materials by their conductance length dependence, $\beta$.
Jensen, Anders   +5 more
core   +1 more source

Structure of shells in complex networks

open access: yes, 2009
In a network, we define shell $\ell$ as the set of nodes at distance $\ell$ with respect to a given node and define $r_\ell$ as the fraction of nodes outside shell $\ell$. In a transport process, information or disease usually diffuses from a random node
B. Bollobás   +12 more
core   +1 more source

Deformations of calibrated D-branes in flux generalized complex manifolds [PDF]

open access: yes, 2006
We study massless deformations of generalized calibrated cycles, which describe, in the language of generalized complex geometry, supersymmetric D-branes in N=1 supersymmetric compactifications with fluxes. We find that the deformations are classified by
A. Kapustin   +47 more
core   +4 more sources

Formation Law of Surface Defects in Stretch-Bending Formamtion of Aluminum Trim Strip for Automobile Body

open access: yesShanghai Jiaotong Daxue xuebao, 2022
Surface defects refer to the local undulation of the parts in the forming process. The variable cross-section and variable-curvature aluminum trim parts are prone to local surface defects during the stretch-bending process, which has a great impact on ...
ZHENG Gaoyuan, ZHAO Yixi, CUI Junhui
doaj   +1 more source

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