in this work, laser bending of perforated sheets has been investigated numerically. laser bending of perforated sheets is more complicated than non-perforated sheets due to their complex geometries. in this paper, laser bending of perforated sheets is studied numerically in the form of thermo-mechanical analysis with abaqus/implicit code. for this purpose, the effects of process and sheet param...

Retreat of the Last Glacial Maximum (LGM) Antarctic ice sheet is thought to have been initiated by changes in ocean heat and eustatic sea level propagated from the Northern Hemisphere (NH) as northern ice sheets melted under rising atmospheric temperatures. The extent to which spatial variability in ice dynamics may have modulated the resultant pattern and timing of decay of the Antarctic ice s...

21 22 Abstract 23 24 Does the dollarization of liabilites and the resulting balance sheet vulnerability prevent 25 monetary policy from serving its conventional countercyclical role? We study this question 26 in a model of a small open economy in which domestic firms face an imperfect capital 27 w market, with risk premia depending on net worth as in Bernanke and Gertler Am. Econ. 28 Ž . x Rev....

Abstract Atmospheric rivers (ARs) are an important driver of surface mass balance over today's Greenland and Antarctic ice sheets. Using paleoclimate simulations with the Community Earth System Model, we find ARs also had a key influence on extensive sheets Last Glacial Maximum (LGM). provide up to 53% total precipitation along margins eastern Laurentide sheet 22%–27% Patagonian, western Cordil...

A simple If-dimensional continental ice sheet model is presented. The model is based on Nye’s (1959) proposal to express the vertical mean horizontal ice-velocity as u = BC, where r, is the basal shear stress and B and m are constants. Essentially, the spread of ice is governed by a nonlinear diffusion equation for the ice thickness. The diffusivity increases with both ice thickness and surface...

We present a numerical method for calculating vertically averaged velocity fields using a mass conservation approach, commonly known as balance velocities. This allows for an unstructured grid, is not dependent on a heuristic flow routing algorithm, and is both parallelizable and efficient. We apply the method to calculate depth-averaged velocities of the Greenland Ice Sheet, and find that the ...

Despite growing evidence that many US households are liquidity constrained, there remains little consensus on the quantitative importance or nature of these constraints. This paper develops a new type of evidence on the impacts of consumer credit markets on behavior by examining household-level responses to an exogenous liquidity shock. A United States Supreme Court decision effectively deregul...

A widespread opinion before the credit crisis of 2007/8 was that securitisation enhances financial stability by dispersing credit risk. After the credit crisis, securitisation was blamed for allowing the hot potato of bad loans to be passed to unsuspecting investors. Both views miss the endogeneity of credit supply. Securitisation enables credit expansion through higher leverage of the financia...

Abstract Information from former ice sheets may provide important context for understanding the response of today’s to forcing mechanisms. Here we present a reconstruction last deglaciation marine sectors Eurasian Ice Sheet, emphasising how retreat Norwegian Channel and Barents Sea streams led separation British-Irish Fennoscandian at c. 18.700 Kara-Barents Sea-Svalbard between 16.000 15.000 ye...

Accurate economic intelligence is critical in designing policies, strategies and investments for Iraq ’s economic recovery. Unfortunately, very little is known about the country’s economic progress over the last several decades,[2] let alone the current situation. There are huge gaps in even the most routine data compiled by nearly every country. The International Monetary Fund, for instance, d...