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Abstract

Details

Delivering Victory
Type: Book
ISBN: 978-1-78754-603-5

Abstract

Details

Delivering Victory
Type: Book
ISBN: 978-1-78754-603-5

Book part
Publication date: 29 November 2019

Richard E. Killblane

Abstract

Details

Delivering Victory
Type: Book
ISBN: 978-1-78754-603-5

Book part
Publication date: 14 December 2017

David Pettinicchio

Given the growing interest in social movements as policy agenda setters, this paper investigates the contexts within which movement groups and actors work with political…

Abstract

Given the growing interest in social movements as policy agenda setters, this paper investigates the contexts within which movement groups and actors work with political elites to promote their common goals for policy change. In asking how and why so-called outsiders gain access to elites and to the policymaking process, I address several contemporary theoretical and empirical concerns associated with policy change as a social movement goal. I examine the claim that movements use a multipronged, long-term strategy by working with and targeting policymakers and political institutions on the one hand, while shaping public preferences – hearts and minds – on the other; that these efforts are not mutually exclusive. In addition, I look at how social movement organizations and actors are critical in expanding issue conflict outside narrow policy networks, often encouraged to do so by political elites with similar policy objectives. And, I discuss actors’ mobility in transitioning from institutional activists to movement and organizational leaders, and even to protesters, and vice versa. The interchangeability of roles among actors promoting social change in strategic action fields points to the porous and fluid boundaries between state and nonstate actors and organizations.

Details

On the Cross Road of Polity, Political Elites and Mobilization
Type: Book
ISBN: 978-1-78635-480-8

Keywords

Book part
Publication date: 22 February 2011

Douglas NeJaime

Within the legal mobilization framework, sociolegal scholars identify elite support as a key indirect benefit of litigation. Court-centered strategies generate support…

Abstract

Within the legal mobilization framework, sociolegal scholars identify elite support as a key indirect benefit of litigation. Court-centered strategies generate support from influential state and private actors, and this support helps a movement to achieve its goals. Instead of assuming elite support to be a decidedly positive step in a movement’s trajectory, a more contextual analysis situates elite support as a complex, dynamic factor that movement advocates attempt to manage. Such support may at times create political and legal risks that jeopardize a movement's progress. My analysis of the marriage equality movement suggests a tentative typology with which to approach elite support: Elite support appears generally productive for a movement when it leads to action consistent with the movement's strategy. On the other hand, elite support may pose significant risk when it prompts action inconsistent with the movement's strategic plan, even if it is consistent with the movement's substantive positions.

Details

Special Issue Social Movements/Legal Possibilities
Type: Book
ISBN: 978-0-85724-826-8

Book part
Publication date: 29 June 2016

Mickey Losinski and Robin Parks Ennis

Repetitive and restrictive behaviors are one of the core components of diagnosing a child with an autism spectrum disorder. These behaviors may take the form of repetitive…

Abstract

Repetitive and restrictive behaviors are one of the core components of diagnosing a child with an autism spectrum disorder. These behaviors may take the form of repetitive motor movements or vocalizations, often referred to as stereotypical behaviors. These behaviors can impede the child’s educational and social opportunities, and have thus become a target for intervention. A variety of interventions have been used to reduce stereotypical behaviors with varied success. One of the most oft-used interventions is deep pressure therapy (e.g., weighted vests), a practice that enjoys substantial anecdotal but little empirical support. Conversely, interventions based on functional behavior assessment (FBA) have been shown to reduce these behaviors, but may not be used frequently within schools. Therefore, this chapter will provide a brief overview of stereotypical behaviors and compare these two intervention approaches, with a clear preference for FBA-based interventions due to their stronger empirical support.

Details

Instructional Practices with and without Empirical Validity
Type: Book
ISBN: 978-1-78635-125-8

Keywords

Article
Publication date: 26 January 2010

Shanchun Wei, Hongbo Ma, Tao Lin and Shanben Chen

Recognition and guidance of initial welding position (IWP) is one of the most important steps of automatic welding process, also a key technology of autonomous welding…

Abstract

Purpose

Recognition and guidance of initial welding position (IWP) is one of the most important steps of automatic welding process, also a key technology of autonomous welding process. The purpose of this paper is to advance an improved Harris Algorithm and grey scale scanning method (GSCM) to raise the precision of image processing.

Design/methodology/approach

Through the configuration of “single camera and double positions,” a new set of image processing algorithms is adopted to extract feature points by using the pattern of rough location and subtle extraction, so as to restructure three‐dimensional information to guide robot move to IWP in the practical welding environment.

Findings

Experiments showed that mean square errors (MSEs) in X, Y, Z‐directions for both flat butt joint and flat flange are 0.4491, 0.8178, 1.4797, and 0.5398, 0.4861, 1.1071 mm, respectively.

Research limitations/implications

It has a limitation in providing guidance for only one step, and would be more accurate if fractional steps are adopted.

Practical implications

Guidance experiments of IWPs on oxidant tank's simulating parts are carried out, whose success rate is up to 95 percent and MSEs are 0.7407, 0.7971, and 1.3429 mm. It meets the demands of continuous and automatic welding process.

Originality/value

Improved Harris Algorithm and GSCM are advanced to raise the precision of image processing which influenced guidance precision most.

Details

Sensor Review, vol. 30 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 20 October 2014

He Xu, Yan Xu, Hu Fu, Yixian Xu, X.Z. Gao and Khalil Alipour

The purpose of this paper is to explore a novel control approach for swift and accurate positioning and tracking of a mobile robot. Coordinated movement of the mobile…

Abstract

Purpose

The purpose of this paper is to explore a novel control approach for swift and accurate positioning and tracking of a mobile robot. Coordinated movement of the mobile robot-body and chameleon-inspired binocular “negative correlation” visual system (CIBNCVS) with neck has rarely been considered in conventional mobile robot design. However, it is vital in swift and accurate positioning and tracking of the target. Consequently, it is valuable to find an optimized method where the robot-body, the biomimetic eyes and neck could achieve optimal coordinated movement.

Design/methodology/approach

Based on a wheeled mobile robot, a biomimetic dual Pan–Tilt–Zoom visual system with neck is constructed. The cameras can rely on the unique “negative correlation” mode of chameleon vision, and cooperate with neck, achieving swift search of the 160° scope in front of the robot. Genetic algorithm is used to obtain optimal rotation of the neck and robot-body. Variable resolution targeting is also applied for accurate aiming. Using these two approaches, we can achieve efficient targeting with low energy consumption. Particle filter algorithm is further utilized for real-time tracking.

Findings

In the proposed approach, swift and accurate positioning and tracking of the target can be obtained. The rationality of the approach is verified by experiments on flat and sandy terrains with satisfactory results.

Originality/value

This paper proposes a novel control approach for wheeled mobile robots, which achieves coordinated movement of the robot-body and CIBNCVS with neck concerning time and energy saving in the process of swift and accurate tracking.

Details

Industrial Robot: An International Journal, vol. 41 no. 6
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 17 October 2016

Jian Le, Hua Zhang and Jin-wen Li

This study aims to improve the welding quality and efficiency, and an algorithm should be designed to realize tracking space-curved fillet weld joints.

Abstract

Purpose

This study aims to improve the welding quality and efficiency, and an algorithm should be designed to realize tracking space-curved fillet weld joints.

Design/methodology/approach

Fillet weld joints tracking based on the two wheels and the horizontal slider coordinated movement has been studied. The method of pattern recognition is used to identify the height deviation, and the analysis of the accuracy corresponding to recognizing height deviations has been researched. The proportional control algorithm is used to control the vertical and horizontal sliders movement, so fillet weld joints tracking in the height direction has been achieved. Based on wheels and vertical and horizontal sliders coordinated movement, the algorithm of space-curved fillet weld joints tracking has been researched.

Findings

Some experiments have been done, and experimental results show that the welding robot can track space-curved fillet weld joints with high accuracy and good reliability.

Research limitations/implications

The welding robot can improve the welding quality and efficiency.

Practical implications

The welding robot can track fillet weld joints in ship panels, and it was shown that the welding robot could track space-curved fillet weld joints with high accuracy and good reliability.

Social implications

The welding robot has many industrial and social applications.

Originality/value

There are various forms of fillet weld joints in the industry, and the fillet weld is curved in the space. Experimental results show that the welding robot can track space-curved fillet weld joints with good stability and high precision.

Details

Industrial Robot: An International Journal, vol. 43 no. 6
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 14 April 2020

Yu Yan, Wei Jiang, Dehua Zou, Wusheng Quan, Hong Jun Li, YunFei Lei and Zhan fan Zhou

In the long-term network operation, the power distribution network will be subjected to the effects of ultra-high voltage, strong electromagnetic interference and harsh…

Abstract

Purpose

In the long-term network operation, the power distribution network will be subjected to the effects of ultra-high voltage, strong electromagnetic interference and harsh natural environment on the power system, which will lead to the occurrence of different faults in the distribution network and directly affect the normal operation of the power grid.

Design/methodology/approach

The purpose of this study is to solve the problems of labor intensity, high risk and low efficiency of distribution network manual maintenance operation, this paper proposed a new configuration of the live working robot for distribution network maintenance, the robot is equipped with dual working arms through the mobile platform, which can realize the coordination movement, the autonomous reorganization and replacement of the end tools, respectively, so as the robot power distribution maintenance function such as stripping, trimming, wiring and the operation control problem of the distribution network-robot with small arms and in small operation space can be realized.

Findings

To effective elimination or reduce the adverse effects of the internal forces in the closed chain between the working object and manipulator under the typical task of the 10 kV distribution network, this paper has established the robot coordinated control dynamics model in the closed-chain between the dual-working object and proposed the dynamic distribution method of closed-chain internal force and the effectiveness has been proved by simulation experiments and 10 kV field operation.

Originality/value

The force-position hybrid control can realize the mutual compensation of force and position so as to effectively reduce the internal force in the closed chain. Finally, the engineering practicality of the method is verified by field operation experiment, the effective implementation of this control method greatly improves the robot working efficiency and the operation reliability, the promotion and application of the control method have great theoretical and practical value and maintenance management system, so as to achieve automation of electric.

Details

Industrial Robot: the international journal of robotics research and application, vol. 47 no. 3
Type: Research Article
ISSN: 0143-991X

Keywords

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