Results 81 to 90 of about 6,932,912 (280)

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Rotation in Multiple Correspondence Analysis: a planar rotation iterative procedure [PDF]

Multiple Correspondence Analysis (MCA) is a well-known multivariate method for statistical description of categorical data (see for instance Greenacre and Blasius, 2006). Similarly to what is done in Principal Component Analysis (PCA) and Factor Analysis,
Marie CHAVENT (IMB UMR CNRS 5251), Vanessa KUENTZ (IMB UMR CNRS 5251), Jérome SARACCO (GREThA UMR CNRS 5113)   +2 more
core  

The Freezing Rotation Illusion [PDF]

, 2007
The freezing rotation illusion arises when a figure is continuously rotating in front of a back and forth rotating ground. The term “freezing rotation” designates the decrease in the perceived rotation speed of a figure when the figure and ...
Max R. Dürsteler, Max R. Dürsteler, Dürsteler, M R, Dürsteler MR   +3 more
core   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Effect of crop rotation and crop succession on microorganisms and yield of tobacco rhizosphere soil

BMC Microbiology
Continuous cropping of tobacco can lead to the occurrence of deterioration of soil microbial ecosystems, exacerbation of viral pests, and reduction of quality, whereas corn-tobacco rotation can effectively alleviate the obstacles of continuous cropping ...
Chunduo Zhao, Siqi Fa, Zhe Jin, Luying Liu, Wei Chen, Guohui Wang, Li Nan, Yu’e Li   +7 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

A Comparison of Rotation and Continuous-Seasonal Grazing Systems [PDF]

A proper grazing system is the effective measure to put pas­ture resources to rational use. Many scholars had compared rotation grazing to continuous grazing. Some results were shown that rotation grazing can bring more herbage pro­duction and liveweight
Xu, Zhixin, Han, Guodong, Zhang, Zutong
core   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Diversified crop rotation reshapes soil nutrients, microbial communities, and functions in sorghum fields

Frontiers in Microbiology
IntroductionLong-term continuous sorghum cropping degrades soil environments and causes continuous cropping obstacles. This study investigated whether diversified crop rotation can maintain soil health and improve the soil microenvironment for sorghum ...
Manjing Chen, Yuwen Jiang, Jiaqi Shen, Yan Ren, Lengbo Zhou, Chunge Wang, Guilan Chen, Mingbo Shao   +7 more
doaj   +1 more source

MRI B0 homogeneity and geometric distortion with continuous linac gantry rotation on an Elekta Unity MR-linac

Physics in Medicine and Biology, 2019
This work aimed to quantify any principal magnetic field (B0) inhomogeneity and changes in MR image geometric distortion with continuous linac gantry rotation on an Elekta Unity MR-linac.
S. Jackson, M. Glitzner, R. Tijssen, B. Raaymakers   +3 more
semanticscholar   +1 more source