Results 81 to 90 of about 1,711,807 (280)

World sheets for world sheets

open access: yesNuclear Physics B, 1987
Abstract In this paper I suggest that the two-dimensional world sheet underlying the dynamics of relativistic strings may itself emerge from an approximation to a two-dimensional string theory. Coordinates that represent space-time and internal symmetries should emerge as wave functions of the massless states of that theory.
openaire   +1 more source

On the record: facing financial troubles in an era of globalization: a conversation with Nathan Sheets [PDF]

open access: yes
Economist Nathan Sheets, director of the Federal Reserve Board's Division of International Finance, puts a global perspective on the current economic crisis and the Fed's response to it.Globalization ; Financial crises ; International ...
Nathan Sheets
core  

Crescent Singularities in Crumpled Sheets

open access: yes, 2004
We examine the crescent singularity of a developable cone in a setting similar to that studied by Cerda et al [Nature 401, 46 (1999)]. Stretching is localized in a core region near the pushing tip and bending dominates the outer region.
D. J. Struik   +5 more
core   +1 more source

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

open access: yesAdvanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh   +3 more
wiley   +1 more source

Dynamic characteristics of automotive steel sheets

open access: yesMetalurgija, 2016
The aim of this experimental research was to perform an analysis of deformation characteristics on two different types of steel: IF steel, and micro-alloyed steel were used automotive industry.
M. Mihaliková, A. Lišková
doaj  

The SA Pocket Tool

open access: yesMedEdPORTAL, 2012
Introduction The medical evaluation of sexually assaulted children, ranging in age from infants to teens, is a complex and emotionally charged procedure.
Lynn Sheets, Deborah Bretl
doaj   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat   +5 more
wiley   +1 more source

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Are Cryptocurrencies Good Investments?

open access: yesStudies in Business and Economics, 2019
This paper provides a comprehensive overview of cryptocurrencies, including the origin of cryptocurrencies, how cryptocurrencies operate, and the current situation of cryptocurrencies.
Ben Sheets, Xiaoqiong Wang
doaj   +1 more source

Five Sheets at Five Years [PDF]

open access: yes, 2014
Exhibition at Five Years Gallery with Dr. Katharine Meynell. five sheets at Five Years presents the latest section from Poetry of Unknown Words, our feminising response to Iliazd’s Poesie de mots inconnus, 1949.
Johanknecht, Susan, Meynell, Katharine
core  

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