Results 71 to 80 of about 4,839,794 (300)

New practical algorithms for the approximate shortest lattice vector [PDF]

, 2005
We present a practical algorithm that given an LLL-reduced lattice basis of dimension n, runs in time O(n3(k=6)k=4+n4) and approximates the length of the shortest, non-zero lattice vector to within a factor (k=6)n=(2k). This result is based on reasonable
Schnorr, Claus Peter
core  

The number of lattice paths below a cyclically shifting boundary [PDF]

, 2009
We count the number of lattice paths lying under a cyclically shifting piecewise linear boundary of varying slope. Our main result can be viewed as an extension of well-known enumerative formulae concerning lattice paths dominated by lines of integer ...
Rattan, Amarpreet, Irving, J., Rattan, A., A. Rattan, J. Irving   +4 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Substantiation of the Lattice Ripper Parameters of the Carrot Digger in Conditions of the Republic of Uzbekistan

Сельскохозяйственные машины и технологии, 2020
The authors showed that during carrot harvesting by diggers, strong soil lumps were formed that were poorly separated from root crops and complicated the separation process, which leaded to machines overloading, due to the variability of the physical and
R. N. Norchaev, D. R. Norchaev, R. Kh. Chorshanbiev   +2 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Effects of point defects on lattice parameters of semiconductors

, 1996
A model for analyzing the correlation between lattice parameters and point defects in semiconductors has been established. The results of this model for analyzing the substitutes in semiconductors are in accordance with those from Vegard's law and ...
He HJ, Chen NF, Lin LY, Wang YT, Chen NF CHINESE ACAD SCIINST SEMICONDSEMICOND MAT SCI LABPOB 912BEIJING 100083PEOPLES R CHINA.   +4 more
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Glueball mass estimate from finite temperature SU(2) lattice studies [PDF]

, 1981
Engels J, Karsch F, Satz H, Montvay I. Glueball mass estimate from finite temperature SU(2) lattice studies. Physics Letters, B.
Karsch, Frithjof, Engels, Jürgen, Satz, Helmut, Montvay, I.   +3 more
core   +1 more source

NANOCRYSTALLINE POWDERS OF NICKEL-COPPER

Вестник Кемеровского государственного университета, 2014
The processes of formation of nano-crystalline particles in the nickel-copper systems are investigated by the methods of X-ray diffractometery and small angle X-ray scattering.
Yu. A. Zakharov, V. M. Pugachev, O. V. Vasilieva, Yu. V. Karpushkina, I. P. Prosvirin, S. V. Lyrschikov   +5 more
doaj  

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source