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The aim of this paper is to introduce a hexapod walking robot specifically designed for applications in humanitarian demining, intended to operate autonomously for several hours. To this end, the paper presents an experimental study for the evaluation of its energy efficiency.

First, the interest of using a walking robot for detection and localization of anti-personnel landmines is described, followed by the description of the mechanical system and the control architecture of the hexapod robot. Second, the energy efficiency of the hexapod robot is assessed to demonstrate its autonomy for performing humanitarian demining tasks. To achieve this, the power consumed by the robot is measured and logged, with a number of different payloads placed on-board (always including the scanning manipulator arm assembled on the robot front end), during the execution of a discontinuous gait on flat terrain.

The hexapod walking robot has demonstrated low energy consumption when it is carrying out several locomotion cycles with different loads on it, which is fundamental to have a desired autonomy. It should be considered that the robot has a mass of about 250 kg and that it has been loaded with additional masses of up to 170 kg during the experiments, with a consumption of mean power of 72 W, approximately.

This work provides insight on the use of a walking robot for humanitarian demining tasks, which has high stability and an autonomy of about 3 hours for a robot with high mass and high payload. In addition, the robot can be supervised and controlled remotely, which is an added value when it is working in the field.

This study seeks to analyse if the adjustment towards the target short-term debt ratio of small and medium-sized firms (SMEs) is related to financial distress risk.

Data obtained for a sample of Portuguese manufacturing SMEs from 2010 to 2017 were analysed using the system-generalised method of moments (GMM-sys). Using the modified Z-Altman score, the authors classify SMEs according to their exposure to financial distress risk.

Manufacturing SMEs exposed to a high risk of financial distress rebalance their short-term debt ratio quicker. However, regardless of the financial distress risk level, SMEs distant from the target short-term debt ratio adjust more slowly, suggesting that transaction costs are greater than financial distress costs.

Policymakers should promote the access to external sources of finance with low transaction costs for SMEs, exposed to low levels of financial distress risk, to rebalance their short-term debt ratios quicker. Distressed SMEs far from their target short-term debt ratios, but with capacity to rebalance, need government programmes to access finance with low transaction costs to rebalance their short-term debt ratios.

This paper contributes to deepening our understanding of how SMEs, facing financial risk, rebalance their short-term debt ratios. SMEs, facing high financial distress risk, adjust towards their target short-term debt ratios more rapidly. However, SMEs, distant from the target short-term debt ratio face higher transaction costs than financial distress costs. These firms adjust towards their target short-term debt ratios more slowly, which may aggravate the refinancing risk and, ultimately, announce bankruptcy.

The aim of the research is to design, build and test a robot able to autonomously execute slope consolidation tasks.

A multidisciplinary approach has been adopted to solve the problem: mechanical and control architecture have been conceived simultaneously. Modularity and lifecycle are considered. The robot can climb by means of four legs and two ropes. The drilling system is hosted onboard. Drilling process is fully automated, motion can be controlled in tele‐operation.

The performance of the first prototype has satisfied the end‐user; new on‐site tests and improvements are planned.

Roboclimber is cumbersome; both robot transport and on‐site positioning are complex operations. Coordination between legs motion and ropes tensioning is a difficult task.

The system reduces operating costs and working time, while avoiding the human presence in unsafe and harsh environments.

Roboclimber is the first robot able to do heavy duty works on rocky walls

The purpose of this paper is to develop a climbing cleaning robot with reasonably high productivities for vertical surfaces.

The paper analyzes the reasons for the low productivities or unreliable work of cleaning robots for vertical surfaces. Based on this analysis, a design of a new robot is created. Pilot studies were performed of laboratory and industrial prototypes of a new robot.

The paper shows that the new design provides a reliable and high‐performance work of the cleaning robot for vertical surfaces. Thus, the new design provides increasing in productivities more than ten times compared with the known robot.

In this paper, it is assumed that the speed of the robot during the process of surface cleaning is constant. For future research the algorithm is proposed that automatically maintains such speed of the robot, which depends on the degree of dirtiness and is optimal for the surface to be cleaned.

The results of the research have been used in the manufacture of the robot TITO 500 industrial prototype. Currently, the company RatioForem is implementing small‐lot production of the robots TITO 500.

A new design has been developed for a high‐performance climbing robot for vertical surfaces cleaning, and algorithms for control of the robot.

Explains how the Automatic Control Department of the Instituto de Automatica Industrial (CSIC) in Madrid, Spain has been developing robots for over 15 years. This activity began in the 1980s with the realization of industrial robots and then the department focused its attention on the area of robots for hostile/hazardous environments. Describes several achievements in this field including a complex tele‐operated system for steam generator inspection and maintenance in nuclear power plants; a tele‐manipulator for servicing a new concept of urban infrastructures; a self‐propelling climbing robot with magnetic feet; and a four‐legged walking robot for hazardous environments.

Explains how the Tracminer project aimed to provide a robust, low cost device to be mounted as an accessory on the motorized wheels of traction machines, in order to increase grip on loose soils. The main goal was to provide a device increasing by 30‐40 per cent the traction capacity of the given machine in soft or marshy soil working conditions. The intended device was designed to be robust and simple to adapt to existing machines. A key element of the development strategy was to provide an accessory easy to mount on the machine, which can remain “idle” (in this case, retracted) while not needed. The machine may then be operated as usual, with the opportunity to engage the accessory in action when a better ground grip is required. Such a possibility offers significant advantages for the Tracminer accessory when compared with other permanent traction enhancement solutions such as metallic frames with grids attached to the wheels, accessory caterpillars, etc.

Highlights new robots introduced in the fall 2004 offer various benefits such as lower prices, internal cable management for arc welding, reduced floor space requirements, environmental protection and features for quicker application design and commissioning.

Attended various trade shows and contacted key vendors for information on product introductions.

Vendors are addressing more and more application needs with features like cable management/protection, smaller footprints, lower pricing, greater application integration and other features.

Not all the new products which may have been introduced have been covered.

Users and systems integrators can find answers to previously troubling aspects of robot applications.

Highlights new robot offerings that may be real problem solutions for users who previously considered a robot solution as not fully addressing their requirements.

To present an entirely new technology to be used in the in‐service inspection of storage tanks for hazardous products in several different industries.

Current interior storage oil tank plate inspection is a very expensive and time‐consuming task. The related tasks involve high cost, several hazards to environment and the operators involved in the cleaning jobs. Several research areas were investigated during the development of this tool, fundamentally robotics and non‐destructive test tools. Initial trials in laboratory were complemented with a field test program in near‐real conditions.

A new design of tool for in‐service inspection of such equipments proved to be feasible to be constructed and operated and in accordance with current safety regulations.

New robotics application in non‐destructive testing methodologies for application in in‐service storage equipments. The internal conditions possible to find in the interior of a storage tank, like fixtures, properties of the stored products (inflammable and aggressive), sludge and sand on the bottom, no ambient light, etc., are significant challenges to the development of such a tool.

Developed a robotized tool for inspection of the floor and walls of in‐service tanks, in order to allow an evaluation of the condition of the plates of these tanks, avoiding the long period, hazards and high costs necessary for creating the conditions for reality out of service inspection.

The novelty of the RobTank Inspec project could be evaluated from the two or three existing competitors in the world, and the results of the surveys undertaken.