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Article
Publication date: 1 July 2006

Brett Kennedy, Avi Okon, Hrand Aghazarian, Mircea Badescu, Xiaoqi Bao, Yoseph Bar‐Cohen, Zensheu Chang, Borna E. Dabiri, Mike Garrett, Lee Magnone and Stewart Sherrit

Introduces the Lemur IIb robot which allows the investigation of the technical hurdles associated with free climbing in steep terrain. These include controlling the distribution…

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Abstract

Purpose

Introduces the Lemur IIb robot which allows the investigation of the technical hurdles associated with free climbing in steep terrain. These include controlling the distribution of contact forces during motion to ensure holds remain intact and to enable mobility through over‐hangs. Efforts also can be applied to further in‐situ characterization of the terrain, such as testing the strength of the holds and developing models of the individual holds and a terrain map.

Design/methodology/approach

A free climbing robot system was designed and integrated. Climbing end‐effector were investigated and operational algorithms were developed.

Findings

A 4‐limbed robotic system used to investigate several aspects of climbing system design including the mechanical system (novel end‐effectors, kinematics, joint design), sensing (force, attitude, vision), low‐level control (force‐control for tactile sensing and stability management), and planning (joint trajectories for stability). A new class of Ultrasonic/Sonic Driller/Corer (USDC) end‐effectors capable of creating “holds” in rock and soil as well as sampling those substrates.

Practical implications

Planetary exploration of cliff faces. Search and rescue in steep terrain. Robotic scouting and surveillance in natural environments.

Originality/value

The technologies developed on this platform will be used to build an advanced system that will climb slopes up to and including vertical faces and overhangs and be able to react forces to maintain stability and do useful work (e.g. sample acquisition/instrument placement).

Details

Industrial Robot: An International Journal, vol. 33 no. 4
Type: Research Article
ISSN: 0143-991X

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Article
Publication date: 7 May 2024

Zhouxiang Jiang, Shiyuan Chen, Yuchen Zhao, Zhongjie Long, Bao Song and Xiaoqi Tang

In typical model-based calibration, linearization errors are derived inevitably, and non-negligible negative impact will be induced on the identification results if the rotational…

105

Abstract

Purpose

In typical model-based calibration, linearization errors are derived inevitably, and non-negligible negative impact will be induced on the identification results if the rotational kinematic errors are not small enough or the lengths of links are too long, which is common in the industrial cases. Thus, an accurate two-step kinematic calibration method minimizing the linearization errors is presented for a six-DoF serial robot to improve the calibration accuracy.

Design/methodology/approach

The negative impact of linearization on identification accuracy is minimized by removing the responsible linearized kinematic errors from the complete kinematic error model. Accordingly, the identification results of the dimension-reduced new model are accurate but not complete, so the complete kinematic error model, which achieves high identification accuracy of the rest of the error parameters, is combined with this new model to create a two-step calibration procedure capable of highly accurate identification of all the kinematic errors.

Findings

The proportions of linearization errors in measured pose errors are quantified and found to be non-negligible with the increase of rotational kinematic errors. Thus, negative impacts of linearization errors are analyzed quantitatively in different cases, providing the basis for allowed kinematic errors in the new model. Much more accurate results were obtained by using the new two-step calibration method, according to a comparison with the typical methods.

Originality/value

This new method achieves high accuracy with no compromise on completeness, is easy to operate and is consistent with the typical method because the second step with the new model is conveniently combined without changing the sensors or measurement instrument setup.

Details

Industrial Robot: the international journal of robotics research and application, vol. 51 no. 5
Type: Research Article
ISSN: 0143-991X

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Publication date: 25 October 2024

Zhang Xiaoqi and Muhammad Ali

The financial industry is becoming more intelligent and digital, and the adoption of new technologies is promoting financial innovation while making financial security subject to…

Abstract

The financial industry is becoming more intelligent and digital, and the adoption of new technologies is promoting financial innovation while making financial security subject to disruption. Internet finance, as a product of the rapid development of information technology and the financial industry, has ushered in major changes in the development of the financial industry. The application of new technologies in the financial sector will bring about the development of intelligent investment consulting businesses for financial institutions The development of such a business reduces the threshold at which a customer can obtain financial services and improves the convenience and accessibility of financial services. Under the complex domestic and international economic situation, enterprises need to pay attention to financial risks and reasonably control financial risks. Applying blockchain technology to supply chain financial risk management has a natural match for solving the traditional difficulties in supply chain risk. This chapter mainly describes the types, assessment methods and existing problems of financial risks, as well as the prevention and control of network security risk management and Internet financial risk management arising therefrom, and also involves stress testing and scenario planning, blockchain-based financial risk management and risk culture, among which financial risk assessment and Internet financial risk management are mainly the content. With the help of information technology, we can effectively identify and prevent all kinds of risks and effectively promote the sustainable and healthy development of the financial industry.

Details

Strategic Financial Management
Type: Book
ISBN: 978-1-83608-106-7

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Article
Publication date: 11 November 2009

Ilan Alon, Romie F. Littrell and Allan K.K. Chan

This article reviews and discusses issues in the translation of international brand names to Chinese, and provides a framework for international brand managers who want to expand…

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Abstract

This article reviews and discusses issues in the translation of international brand names to Chinese, and provides a framework for international brand managers who want to expand into China. Linguistic differences between Chinese and English are wide and deep, making translation of brand names difficult. Cultural context, pronunciation, written vs. oral language, and the meaning of characters are just a few examples of such difficulties. We discuss four global product‐naming strategic alternatives available to country/brand managers, along with their usage. The four approaches include (1) dual extension, (2) brand meaning extension, (3) brand feeling extension, and (4) dual adaptation. We also provide examples of brands utilizing the different approaches.

Details

Multinational Business Review, vol. 17 no. 4
Type: Research Article
ISSN: 1525-383X

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