Results 91 to 100 of about 1,486,164 (204)

Effect of specified edge load on Eucalyptus globulus paper properties [PDF]

, 2006
Refining is an important unit operation in the paper production process and consists in the mechanical beating of the pulp fibres in an aqueous medium. The refining conditions affect fibre morphology, pulp suspension characteristics and paper properties.
Anjos, O., Peralta, C., Piçarra, E., Santos, A., Simões, R.   +4 more
core  

Coulomb effects on the transport properties of quantum dots in strong magnetic field

, 2000
We investigate the transport properties of quantum dots placed in strong magnetic field using a quantum-mechanical ' approach based on the 2D tight-binding Hamiltonian with direct Coulomb interaction and the Landauer-B\"{u}ttiker (LB) formalism.
A. Aldea, A. Aldea, A. Aldea, A. Furusaki, A. Manolescu, C.J.B. Ford, C.M. Canali, C.W.J. Beenakker, D.V. Averin, E. Akkermans, G. Kirczenow, I.L. Aleiner, J. König, L.I. Glazman, M. Büttiker, M. Büttiker, M. Macucci, M. Niţă, N.B. Zhitenev, P. Gartner, P.L. McEuen, R. Berkovits, S. Tarucha, U. Sivan, V. Moldoveanu, Y. Meir   +25 more
core   +1 more source

Thermo-Mechanical Coupling Behavior Research and Optimization Strategy of PDC Cutter

Shiyou jixie
When drilling in deep hard formations， PDC bit encounters issues such as low rate of penetration （ROP）， fast wear and high drilling costs. Taking igneous rocks in central Junggar Basin as the research object， a stress-temperature PDC coupling simulation ...
Li Cheng, Wu Zhonghua, Yuan Yubao, Cao Jifei, Huang Zhe, Sun Jianxiang   +5 more
doaj  

Experiment and numerical investigation on bio-inspired tube-plate hybrid lattice structure with dual-stress plateaus and enhanced energy absorption

Virtual and Physical Prototyping
Lattice structures have drawn significant interest owing to their exceptional mechanical properties, e.g. lightweight, strong, and tough performance. Here, inspired by the biostructure of the beetle elytra, a new tube-plate hybrid lattice structure (TPHL)
Mingzhi Wang, Yinzhu Wang, Jianjun Wu, Weidong Wang   +3 more
doaj   +1 more source

Investigation on the microstructure and compressive behavior of open-cell copper- Al2O3 composite foams

Journal of Materials Research and Technology
The objective of this study is to evaluate the mechanical behavior and energy absorption characteristics of open-cell copper- Al2O3 composite foams fabricated using polyurethane foam with an average pore size of 1.2 mm and a combination of electroless ...
Fatemeh Besharati, Mohammad Hossein Paydar   +1 more
doaj   +1 more source

Strong energy enhancement in a laser-driven plasma-based accelerator through stochastic friction [PDF]

, 2019
Conventionally, friction is understood as an efficient dissipation mechanism depleting a physical system of energy as an unavoidable feature of any realistic device involving moving parts, e.g., in mechanical brakes.
Arefiev, A. V., Gong, Z., Mackenroth, F., Yan, X. Q.   +3 more
core   +1 more source

An elongation-shortening strategy modifying the deformation mechanism of cellular structure for excellent energy absorption

Virtual and Physical Prototyping
Due to the excellent specific energy absorption and high specific strength, cellular materials are widely used in impact protection fields. Higher energy absorption efficiency has always been pursued through designing various structures. According to the
Jiaxing Li, Weizhou Zhong, Jin Xu, Xizhe Wang, Junhong Chen, Jian Li   +5 more
doaj   +1 more source

Energy harvesting from train vibrations

, 2013
In this paper, linear mechanical oscillators are designed to harvest energy from train-induced vibrations. The harvested energy could be used, for example, to charge sensors mounted on the rail track for structural health monitoring.
Brennan, M.J., Gatti, Gianluca, Ghandchi Tehrani, M., Thompson, D.J.   +3 more
core  

A Cross‐Linked Flexible Metaferroelectrolyte Regulated by 2D/2D Perovskite Heterostructures for High‐Performance Compact Solid‐State Sodium Batteries

Advanced Science
To address the issues of limited ionic conductivity and poor interface stability at room and low temperatures in solid‐state electrolytes, a robust intrinsic ferroelectrolyte or nanoferroelectrolyte strategy for engineering solid‐state flexible ...
Yanan Huang, Zhuo Yang, Weicheng Zhou, Liequan Liu, Chuanbao Tu, Mingyang Tang, Haijiao Xie, Yu Lu, Xu Yan, Zhihao Ding, Xiaolong Li, Tiannan Yang, Alexander S. Sigov, Wei Huang, Lijun Gao, Cheng Huang   +15 more
doaj   +1 more source

Optimization of Rate of Penetration and Mechanical Specific Energy Using Response Surface Methodology and Multi-Objective Optimization

Applied Sciences
Optimizing the drilling process is critical for the exploration of natural resources. However, there are several mechanic parameters that continuously interact with formation properties, hindering the optimization process.
Diunay Zuliani Mantegazini, Andreas Nascimento, Mauro Hugo Mathias, Oldrich Joel Romero Guzman, Matthias Reich   +4 more
doaj   +1 more source