Concept

Diminishing returns

Related publications (64)

Collisionless microtearing modes in hot tokamaks: Effect of trapped electrons

Collisionless microtearing modes have recently been found linearly unstable in sharp temperature gradient regions of large aspect ratio tokamaks. The magnetic drift resonance of passing electrons has been found to be sufficient to destabilise these modes a ...

Amer Inst Physics2015

Asymmetry in Size-Segregation Rates.

Christophe Ancey, Gaël Epely Chauvin, Kasper van der Vaart

We show experimentally and by comparison with theory that during particle size-segregation in a sheared granular flow large particles rise slower in regions of many small particles and small particles sink faster in regions of many large particles. Binary ...

2014

Inventory Leanness and the Financial Performance of the Firm

Ralf Seifert, Olov Isaksson

This paper examines the financial consequences that inventory leanness has on firm performance. We conduct an econometric analysis using 4324 publicly traded US manufacturing companies for the period 1980-2008. Using an instrumental variable fixed effects ...

2014

Thinking too positive? Revisiting current methods of population genetic selection inference

Jeffrey David Jensen, Matthieu Foll, Claudia Bank, Gregory Bruce Ewing

In the age of next-generation sequencing, the availability of increasing amounts and improved quality of data at decreasing cost ought to allow for a better understanding of how natural selection is shaping the genome than ever before. However, alternative ...

Elsevier Science London2014

Hot tearing in polycrystalline Ni-based IN738LC superalloy: Influence of Zr content

Jean-Marie Drezet

Zirconium is always present in Ni base superalloys as it enhances their creep properties. In the present study, the influence of very small Zr additions, 100–400 ppm, i.e. 0.01–0.04 wt.%, on hot tearing of IN738LCsuperalloy is experimentally investigated u ...

Elsevier2014

Snow avalanche hazard prediction and warning procedure in the Arctic environment

Anaëlle Kaufmann

A growing population in Svalbard, reflecting an increase in scientific research and tourism, leads to an increasing amount of people exposed to avalanche danger. Consequently, there is a growing interest for a local avalanche warming procedure. The goal of ...

2014

Growth of Secondary Dendrite Arms of Fe C Alloy during Transient Directional Solidification by Phase-field Method

Jonathan Dantzig, Yu Xie

Due to the variations in the local solidification conditions in typical industrial casting processes, dendrites grow under transient rather than steady-state conditions. In this study, the phase-field method was used to study the evolution of secondary den ...

Iron Steel Inst Japan Keidanren Kaikan2014

An Algorithm for Testing the Efficient Market Hypothesis

Ioana Andreea Boboc

The objective of this research is to examine the efficiency of EUR/USD market through the application of a trading system. The system uses a genetic algorithm based on technical analysis indicators such as Exponential Moving Average (EMA), Moving Average C ...

Public Library of Science2013

Principal components of functional connectivity: A new approach to study dynamic brain connectivity during rest

Dimitri Nestor Alice Van De Ville, Jonas Richiardi, Nora Leonardi

Functional connectivity (FC) as measured by correlation between NM BOLD time courses of distinct brain regions has revealed meaningful organization of spontaneous fluctuations in the resting brain. However, an increasing amount of evidence points to non-st ...

Elsevier2013

Natural Expectations, Macroeconomic Dynamics, and Asset Pricing

Andreas Fuster

How does an economy behave if (1) fundamentals are truly hump-shaped, exhibiting momentum in the short run and partial mean reversion in the long run, and (2) agents do not know that fundamentals are hump-shaped and base their beliefs on parsimonious model ...

University of Chicago Press2012

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