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Jun He, Mingjin Shen and Feng Gao
The hardware-in-the-loop (HIL) simulation is an important approach to test space robotic operations, rendering virtual free-floating dynamics on robotic facilities. However, this approach suffers from velocity divergence due to intrinsic time delay in th...
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Andrea Abreu-García, Ricardo M. Souto and Javier Izquierdo
In this paper, the applicability of Ti6Al7Nb as a more biocompatible alternative for bone and dental implants than Ti6Al4V and pure titanium in terms of corrosion resistance and electrochemical inertness is investigated. The chemical inertness and corros...
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Mutaz Ryalat, Hazem Salim Damiri and Hisham ElMoaqet
Dynamic positioning (DP) control system is an essential module used in offshore ships for accurate maneuvering and maintaining of ship?s position and heading (fixed location or pre-determined track) by means of thruster forces being generated by controll...
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Athanasios K. Sfikas and Angeliki G. Lekatou
Al?Co alloys of various Co contents (2?20 wt.% Co) were fabricated by vacuum arc melting (VAM) with the scope to investigate the influence of cobalt on the microstructure and corrosion resistance of Al in 1 M H2SO4. The obtained microstructures were dire...
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Ingmar Bösing, Georg Marquardt and Jorg Thöming
Martensitic stainless steels are widely used materials. Their mechanical and corrosion properties are strongly influenced by their microstructure and thereby can be affected by heat treatment. In the present study, the effect of different austenitizing t...
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Takashi Takuma, Ken Takamine and Tatsuya Masuda
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Jianyong Li, Yanhong Liu, Chunwen Li and Bing Chu
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Jianyong Li, Yanhong Liu, Chunwen Li and Bing Chu
Passivity-based control is widely used in electronic circuit systems because it can utilize their internal structures to facilitate the controller design. In this paper, we first propose a dissipative Hamiltonian realization of power systems and discuss ...
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Tatiana Begotti, Martina Bollo and Daniela Acquadro Maran
Aims: In the last decade, the use of smartphones, computers and devices has progressively increased, and prolonged use of technology and the internet has generated new arenas (and tools) for victimization. The first aim of this study was to analyze the u...
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Josinete de Carvalho Bezerra
Pág. 769 - 781
O objetivo deste artigo é analisar a expansão da dominação capitalista e avanço do conservadorismo em busca de hegemonia exercida por meio da construção de passividade, via implementação de políticas sociais focalizadas ecompensatórias para atender ...
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Yifan Jiang, Karen C. Bustillo and Thomas M. Devine
Aqueous zinc ions lower the corrosion rate of Alloy 600, which helps lower the radiation dose rate in pressurized water reactors (PWRs). The influence of zinc on the electrochemical behavior of Alloy 600 in PWR primary water (PW) at 320 °C was investigat...
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Nayika Samorn, Narongsak Yotha, Pantiwa Srisilp and Kanit Mukdasai
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Nardênio Almeida Martins (Author)
Pág. 1481 - 1494
Adaptive control design for robot manipulators in joint space coordinates is analyzed. A new composite adaptive control law, which uses prediction and tracking error to drive parameter estimation, is developed, based on passivity and direct Lyapunov meth...
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Angeliki G. Lekatou and Sofia Tsouli
The present work studies the effect of fly ash content (0?25 wt.%), pH (8, 12.5), and steel type (316L, 304L) on the cyclic polarization of stainless steel rebars in electrolytes, simulating fresh concrete exposed to acid rain and corroded concrete cover...
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Yue Wang, Haisheng Yu, Jinpeng Yu, Herong Wu and Xudong Liu
This paper presents the trajectory tracking control of a flexible-joint manipulator driven by permanent magnet synchronous motor (PMSM). Combining the PMSM electrical equation and mechanical equation of robotic manipulators, a novel smooth switching cont...
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Omar Elrefaey, Salma Ahmed, Irtishad Ahmad and Sameh El-Sayegh
The construction industry has been incorporating digital technology over the last two decades, albeit gradually, as ?technology-push? continues to overcome customary and traditional passivity typical in the sector. The objective of the study presented in...
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P. S. Nosov,I. V. Palamarchuk,M. S. Safonov,V. I. Novikov
Pág. 82 - 92
Purpose. The article investigates the trajectories of the watch team members in maritime transport that lead to a decrease in the level of security. A formal apparatus is proposed, as well as software and hardware to identify the location of members of t...
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María Teresa Múñoz
Pág. 68 - 73
Poelzig affirmed that the technical ideal consisted of using the least amount of shapes and materials possible. He understood architecture as an art, as the expression of form; In contrast to the indifference of the most widely recognized values of moder...
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