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The adaptation of conventional robots to construction sites is fraught with problems. Most significant of these are in relation to positioning, means of collision avoidance, and appropriate navigation strategy. This paper reviews the different levels of navigational autonomy that are possible and describes the system requirements for each. A taxonomy based on the concept of a Mobility Automation Level (MAL) is proposed. Each level is described and the requirements from a robot design perspective are discussed. Finally, a case study, based on an excavator with autonomously optimised movement, known as LUCIE, is used to illustrate some of the design criteria previously described and discussed.

This study aims to address a paucity of research into career success by exploring the impact of organizational context (“in-group” culture and the competitiveness strategy) and individual variables (self-efficacy and goal orientation), on objective career success (academic position) and subjective career success (career satisfaction).

Survey data were obtained from 447 faculty members employed by Babeș-Bolyai University (BBU), the best-ranked Romanian higher education institution. For analysis, hierarchical multiple regressions analyzes were used.

The novel results of this quantitative analysis are that organizational context variables influence both subjective career success and objective career success. Academics who do not attain promotion have lower subjective career success and objective career success, as a result of the publish or perish university strategy. Self-efficacy has a positive impact on both success types, while goal orientation is for subjective career success a weak predictor.

Organizational efforts should be focused on improving academics career development especially for those teachers who are in the current position already for many years. The development of performance-driven career paths should be also considered for diminishing the impact of organizational variables.

This paper extends the knowledge concerning objective and subjective career success by revealing the important impact of contextual determinants, as it confirms the impact of individual self-efficacy in a university context and partially the one of goal orientation.

Large-scale mobile radars are still erected manually by using lifting equipment, which often fails to meet the requirements on precision, quality and efficiency in the erecting process. This paper aims to introduce techniques for automatic assembly of large mobile radar antenna.

A large-scale metrology system for accurate identification of the positions and orientation of the radar antenna components is presented. A novel three-degree-of-freedom parallel mechanism is designed to realize orientation adjustment of three axes synchronous, and, thus guarantees the efficiency and accuracy of positioning process.

The system described in this paper is practicable in outdoor environment and provides a holistic solution that gives full consideration of the operation conditions and the environmental influences. In performance evaluation tests, the measured absolute accuracy is less than ±1 mm and repeatability is less than ±0.5 mm in the positioning task for 10 × 3 m large antenna.

This paper presents a new concept of an automatic assembly technology for the large radar antenna application.

Discusses robot accuracy and repeatability and the mechanical and control aspects of robots that lead to errors occuring in static positioning and dynamic path following. Outlines the steps that should be taken to minimise errors and concludes that robot users should encourage manufacturers to utilize the ISO and ANSI standards when measuring and presenting robot capabilities. This will not only give users the ability to objectively compare systems, but also push robot manufacturers to develop a better understanding of the products they are selling.

This paper develops the statistical error analysis model for assembling, to derive measures of controlling the geometric variations in assembly with multiple assembly stations, and to provide a statistical tolerance prediction/distribution toolkit integrated with CAD system for responding quickly to market opportunities with reduced manufacturing costs and improved quality. First the homogeneous transformation is used to describe the location and orientation of assembly features, parts and other related surfaces. The desired location and orientation, and the related fixturing configuration (including locator position and orientation) are automatically extracted from CAD models. The location and orientation errors are represented with differential transformations. The statistical error prediction model is formulated and the related algorithms integrated with the CAD system so that the complex geometric information can be directly accessed. In the prediction model, the manufacturing process (joining) error, induced by heat deformation in welding, is taken into account.

A number of attempts have been made to develop theories in operations management (OM) (e.g. trade‐off theory by Skinner, customer‐contact model by Chase and Tansik, product‐process matrix by Hayes and Wheelwright). Researchers in OM acknowledge that there is no widely‐accepted theory on which OM rests or which serves as a unified OM theory to integrate existing theory‐like principles or informal theories. Constraints management (CM) has been developed over the past 20 years by consultants and practitioners but has received little attention from OM researchers. The authors believe that constraints management may serve as a broad theory within operations that will allow integration of a great deal of existing OM research. The main objectives of this paper are to propose a construct, throughput orientation, discuss its core dimensions, and develop a theoretical model of CM. The paper also suggests several hypotheses that might be empirically tested to establish CM as a recognized theory in the field of operations management. The paper concludes with suggestions for future research.

Looks at changes in the human‐computer interface, particularly in the field of using computers for applications which require an accurate registration from an input device in “six degrees of freedom”, including robotics, CAD, anthropometric/biomechanic analysis, military, digital antique cataloguing and archaeological site surveys.

The economic science is again in a crisis and a new solution prolegomena to any future study in economics, finance and other social sciences has just been published by the International Institute of Social Economics in care of the MCB University Press in England. The roots of the major financial and economic problems of our time lie in an open conflict between theory and practice. In the 1930s and before the conflict was between classical theory and given realities. In the 1990s the conflict appears between the now prevailing modern, Keynesian theory and the actual realities. In addition during the twentieth century a great argument developed between the two schools of thought, argument which is not yet settled. In one sentence, the prolegomena tried and was successful to solve the conflict between theory and practice and the big doctrinal dispute of the twentieth century. It was a struggle of research and observation over half a century between 1947 and 1997.

The visual instruction software system was designed with typical industrial situations serving as guidelines. The programmer is assumed to have little knowledge of computers. Rather, he is expected to have a detailed knowledge of the task to be performed. The V/I system provides a safe and simple means to communicate this knowledge to the robot control computer. The design of a software system for programming industrial robots is presented. This software system allows the robot's task to be described through visual means. Television cameras and hand‐held arrays of small lights permit the time spent in programming a robot to be radically reduced. Programmers need only place an array of lights in the robot's field of view and press a button on a hand‐held keyboard to specify robot hand position and orientation. Hence, time delays usually encountered when co‐ordinating the movement of robot arm joints are eliminated.

The accurate measurement of the position and orientation of a robot end‐effector is the most critical issue for calibrating of robotic devices. Calibration methods provide tools to improve the accuracy of robots without modification to the mechanical unit or its control architecture. However, such calibration techniques require a large number of measurements. Dynamic measurement of position and orientation not only provides a solution to this problem, it also establishes the foundation for development of techniques to improve the robot’s dynamic accuracy. The concept of laser‐interferometry‐based measurement has been proposed. A system based on this concept is generally referred to as a laser tracking system (LTS). This paper describes the principle of laser‐interferometry‐based tracking. Further, the structure and various components within such a system are presented. A kinematic model for laser tracking is described and the performance of the system in its present configuration is presented. The application potential of such an approach to position and orientation (pose) measurement is also briefly described.