Results 151 to 160 of about 504 (216)

Costly Signals and Cheap Talk: Measuring the Decoupling of ESG Routinisation and Greenwashing Risk

Business Strategy and the Environment, EarlyView.
ABSTRACT Greenwashing is a systemic challenge to sustainable finance, yet prevailing ESG metrics still tend to equate more disclosure with more sustainability. We develop a dual‐index framework to compare firms' ESG ‘talk’ and ‘walk’ using hard data. An ESG Routinisation Index approximates the costly integration of sustainability into emissions, safety
Giacomo Zatini, Nicola Torricella, Armando della Porta   +2 more
wiley   +1 more source

Navigating Ethical Minefields: Micro‐Foundations of Corporate Political Work in Ethical and Sustainable Business Performance

Business Strategy and the Environment, EarlyView.
ABSTRACT In an era of rising geopolitical tensions and environmental instability, corporate political activities have become increasingly intertwined with ethical challenges and sustainability requirements. This study investigates the influence of environmental dynamics and corporate ethical responsibility on interorganizational conflict and ...
David Yulong Liu, Justin Zuopeng Zhang, Jimmy Sun, Muhammad Mustafa Kamal, Bhumika Gupta   +4 more
wiley   +1 more source

SDG Forward Faster in the Face of Geopolitical and Climate Risks: Does CEO Power Strengthen This Relationship?

Business Strategy and the Environment, EarlyView.
ABSTRACT In a macroeconomic environment characterised by systemic disruptions and global uncertainty, companies are forced to reconfigure their sustainability strategies. This study examines the combined impact of geopolitical and climate risks on corporate commitment to and actual progress toward the United Nations (UN) Sustainable Development Goals ...
Isabel‐María García‐Sánchez
wiley   +1 more source

Friction compensation on the RRR-robot

, 2001
openaire   +1 more source

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Adaptive Friction Compensation With a Dynamical Friction Model

IEEE/ASME Transactions on Mechatronics, 2011
This paper presents a new compensation technique for dynamic friction. The proposed control utilizes a PD control structure and an adaptive estimation of the friction force based on an observer. Specifically, a nonlinear function is used to compensate the nonlinear effects of the parameters in the friction model.
Tong Heng Lee, Kok Kiong Tan, Sunan Huang   +2 more
exaly   +2 more sources

Robust adaptive friction compensation

Proceedings., IEEE International Conference on Robotics and Automation, 2002
A new control scheme is presented which makes the closed-loop system properties robust under the eventuality of inexact friction compensation which may provoke limit cycles. This control design has the advantage that the possible oscillations can be reduced in amplitude and modified in frequency independently of the closed-loop system specifications ...
Carlos Canudas de Wit, V. Seront
openaire   +1 more source

Friction Compensation in Robotics: an Overview

Proceedings of the 44th IEEE Conference on Decision and Control, 2006
Friction effects are particularly critical for industrial robots, since they can induce large positioning errors, stick-slip motions, and limit cycles. This paper offers a reasoned overview of the main friction compensation techniques that have been developed in the last years, regrouping them according to the adopted kind of control strategy.
BONA, Basilio, INDRI, Marina
openaire   +3 more sources

Sensorless friction and gravity compensation

2014 IEEE-RAS International Conference on Humanoid Robots, 2014
In this video we present a new controller for robots, called Zero-Friction Zero-Gravity control. The controllers combine terms for compensating the forces exerted by gravity, and the forces of friction of motors and reductions. The consequence of applying this control to a robot (a humanoid robot arm in this case) result in a free movement, as if the ...
Santiago Morante, Juan G. Victores, Santiago Martínez de la Casa Díaz, Carlos Balaguer   +3 more
openaire   +1 more source

Friction compensation with estimated velocity

Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292), 2003
The problem of friction compensation at very low velocity is investigated experimentally. Two published friction compensation strategies, based on two well-known friction models, are evaluated experimentally on a direct drive robot arm. One is an adaptive nonlinear dynamic friction compensation method using the LuGre friction model, and the other is a ...
Y. Zhang, Guangjun Liu, Andrew A. Goldenberg   +2 more
openaire   +2 more sources

Adaptive friction compensation of servo mechanisms

International Journal of Systems Science, 2001
In this paper, adaptive friction compensation is investigated using both model-based and neural network (non-model-based) parametrization techniques. After a comprehensive list of commonly used models for friction is presented, model-based and non-modelbased adaptive friction controllers are developed with guaranteed closed-loop stability.
Ge, S.S., Lee, T.H., Ren, S.X.
openaire   +1 more source