Search results

A robot’s standard cycle time tends to be a primary criterion in estimating work cell through‐put. Many other factors, like robot placement, peripherals and optimization of the work envelope often are overlooked in the analysis. This paper provides insights into optimizing performance by considering all available options to improve cell

This contribution aims to evaluate structural team constellations (STCs) – a team intervention related to the better known family structure constellations.

In total, 67 team members from 14 working teams carried out an STC. They were surveyed at three measuring points by means of a questionnaire on their evaluation of task and relationship conflicts and on their satisfaction with the therapeutic alliance with the constellator.

Stable decreases were shown in both conflict variables. Participants who evaluated the conflict variables more positively over the course of time were also more satisfied with the therapeutic alliance with the constellator.

Given the low time requirements involved, STCs can be considered recommendable compared with other team interventions.

Although constellations are experiencing a boom in German‐speaking countries, there are hardly any studies in English on this method. This paper is one of the first contributions towards the establishment of the method in the Anglo‐American area.

In his article “Geld” of 1909 Menger introduces a principal distinction between “outer exchange value of money” (purchasing power as measured by index numbers) and “inner exchange value of money,” which is affected solely “by influences originating on the side of money,” not on the side of the other goods. Menger chooses constancy of the inner value as policy goal to be achieved by appropriately regulating the quantity of money. In a growing economy, the general price level would have a declining tendency if the money supply were kept constant – a consequence which Menger does not make explicit, and even appears not to have been aware of. There is a fundamental inconsistency in his writings, since in his essays on the currency reform of the Austro-Hungarian monarchy of 1892 Menger warned against undesired consequences of deflation and inflation. Menger’s extensive discussion on how effects on purchasing power on the side of goods could be separated from those attributable to the side of money is referred in the light of then available monetary and price statistics. The inconsistency remains enigmatic. The last part of the present contribution gives a brief overview on how authors of later generations of the Austrian School (Wieser, Mises, Schumpeter, and Hayek), who coined the term “neutrality of money” for Menger’s constancy postulate followed or deviated from Menger’s concepts of the value of money.

The purpose of this paper is to review the sensor technology innovations featured at the International Manufacturing Technology Show (IMTS).

In‐depth interviews with exhibitors of sensor products were undertaken.

Sensor technology continues to grow rapidly to keep up with manufacturing trends such as the need for better product quality, nano‐technology, automated testing, and an ever growing interest in 100 percent in process production testing.

Manufacturers are finding answers to many quality assessment needs with the rapid advances being made by sensor device and inspection system suppliers to offer innovative ways to better inspect components.

Manufacturers are finding answers to many quality assessment needs with the rapid advances being made by sensor device and inspection system suppliers to offer innovative ways to better inspect components.

The Nationalökonomische Gesellschaft (Austrian Economic Association, NOeG) provides a prominent example of the Viennese economic circles and associations that more than academic economics dominated scientific discourse in the interwar years. For the first time this chapter gives a thorough account of its history, from its foundation in 1918 until the demise of its long-time president, Hans Mayer, 1955, based on official documents and archival material. The topics treated include its predecessor and rival, the Gesellschaft österreichischer Volkswirte, its foundation in 1918 soon to be followed by years of inactivity, the relaunch by Mayer and Mises, the survival under the NS-regime and the expulsion of its Jewish members and the slow restoration after 1945. In particular, an attempt is made to provide a list of the papers presented to the NOeG, as complete as possible, for the period 1918–1938.

Nobody concerned with political economy can neglect the history of economic doctrines. Structural changes in the economy and society influence economic thinking and, conversely, innovative thought structures and attitudes have almost always forced economic institutions and modes of behaviour to adjust. We learn from the history of economic doctrines how a particular theory emerged and whether, and in which environment, it could take root. We can see how a school evolves out of a common methodological perception and similar techniques of analysis, and how it has to establish itself. The interaction between unresolved problems on the one hand, and the search for better solutions or explanations on the other, leads to a change in paradigma and to the formation of new lines of reasoning. As long as the real world is subject to progress and change scientific search for explanation must out of necessity continue.

Literature indicates that the business case for projects is difficult to use and suggests that there are organizational factors that can facilitate effective use of the business case. This paper aims to identify such facilitators, measure their presence and importance, and relate them to the actual practice of business case processes.

A cross sectional quantitative method was used, with data on facilitators and business case process usage gathered through an online questionnaire.

The findings for the 43 organizational facilitators are that each one is considered more important than its presence in the respondents' organizations. High correlations emerge between the presence of the facilitators and the use of business case processes, indicating the pivotal role of the facilitators.

The research was conducted for business IT projects implemented by organizations based in South Africa. It furthers our understanding of project business cases and suggests additional research avenues in this area.

The findings indicate that organizations could improve key facilitators at an affordable cost. Such improvement would enable more effective use of the business case throughout the project's lifetime – from initial concept until planned benefits have been substantially realized. Better use of the business case would also support governance and increase the success rate of business IT projects.

Organizational facilitators of business case processes are identified and categorized for the first time, leading to measurements of their perceived importance and presence in organizations. Hence, the relationship between these facilitators and actual business case usage is determined, suggesting areas of optimum impact.

It is demonstrated that the Austrian school in economics had very different ideas about the creation and change of social institutions and especially about the relation of state and market, which is still one of the fundamental problems of economic theory. Menger′s fundamental distinction of pragmatic and organic institutions and Wieser′s contrary model are discussed, followed by the “impossibility theorem” of Mises and the contrary position of Schumpeter. Hayek′s liberation model of society is presented and criticised, and finally Menger′s position is interpreted as one of moderate liberal interventionism.

Thermomechanical behavior of intermediate-size beam-to-wall assemblies including Glulam-beams connected to cross-laminated timber (CLT) walls with T-shape steel doweled connections was investigated at ambient temperature (AT) and after and during non-standard fire exposure.

Three AT tests were conducted to evaluate the load-carrying capacity and failure modes of the assembly at room temperature. Two post-fire performance (PFP) tests were performed to study the impact of 30-min (PFP30) and 60-min (PFP60) partial exposure to a non-standard fire on the residual strength of the assemblies. The assemblies were exposed to fire in a custom-designed frame, then cooled and loaded to failure. A fire performance (FP) test was conducted to study the fire resistance (FR) during non-standard fire exposure by simultaneously applying fire and a mechanical load equal to 65% of the AT load carrying capacity.

At AT, embedment failure of the dowels followed by splitting failure at the Glulam-beam and tensile failure of the epoxy between the layers of CLT-walls were the dominant failure modes. In both PFP tests, the plastic bending of the dowels was the only observed failure mode. The residual strength of the assembly was reduced 14% after 30 min and 37% after 60 min of fire exposure. During the FP test, embedment failure of timber in contact with the dowels was the only major failure mode, with the maximum rate of displacement at 51 min into the fire exposure.

This is the first time that the thermomechanical performance of such an assembly with a full-contact connection is presented.