Results 71 to 80 of about 5,096,456 (382)

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech   +6 more
wiley   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder   +6 more
wiley   +1 more source

Post-Employment, “Revolving Door,” Laws for Federal Personnel [PDF]

open access: yes, 2012
[Excerpt] Conflict of interest regulations and restrictions on certain private employment opportunities for a federal officer or employee do not necessarily end with the termination of the officer’s or employee’s federal service.
Maskell, Jack
core   +2 more sources

Os programas de inclusão digital do Governo Federal sob a óptica da competência informacional | Federal digital inclusion programmes from the viewpoint of informational competency

open access: yesLiinc em Revista, 2009
Resumo Apresenta um estudo sobre como o Governo Federal trabalha as desigualdades causadas pela exclusão digital. Neste contexto foram mapeadas as iniciativas públicas em inclusão digital na esfera federal, nos últimos dez anos considerando-as sob a ...
Elaine R. de Oliveira Lucas   +1 more
doaj   +1 more source

Influence of a Standard Heat Treatment on the Microstructure and Properties of Inconel X‐750 Produced by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Ni‐base superalloys produced using additive manufacturing (AM) have a different response to heat treatments when compared to their conventional counterparts. Due to such unpredictability, various alloys with industrial interest are currently overlooked in most prior AM research.
Guilherme Maziero Volpato   +6 more
wiley   +1 more source

Post-Employment, “Revolving Door,” Laws for Federal Personnel [PDF]

open access: yes, 2014
[Excerpt] Conflict of interest regulations and restrictions on certain private employment opportunities for a federal officer or employee do not necessarily end with the termination of the officer’s or employee’s federal service.
Maskell, Jack
core   +2 more sources

PIERWSZY BANK STANÓW ZJEDNOCZONYCH JAKO PIERWOWZÓR SYSTEMU REZERWY FEDERALNEJ

open access: yesZeszyty Prawnicze, 2017
First Bank of the United States as a Prototype for the Federal Reserve System Summary The article describes the history of the First Bank of the United Statesfirst banking- institution, that was charted in XVII-th century North America as an effect of
Wojciech Kwiatkowski
doaj   +1 more source

Assessing the Microstructure of SnBiZn Alloys during Semisolid Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
The development of Sn‐based alloys for semisolid processing is crucial for Industry 4.0. This study investigates Sn40Bi and Sn40Bi2Zn alloys, revealing that Zn refines Sn‐rich globules by pinning dendrite boundaries. Bi saturation occurs at 60 min, while Zn enhances globule microhardness at 90 min through solid solution strengthening.
Carolina de Siqueira Simioli   +2 more
wiley   +1 more source

Watching You: Systematic Federal Surveillance of Ordinary Americans [PDF]

open access: yes, 2001
To combat terrorism, Attorney General John Ashcroft has asked Congress to "enhance" the government's ability to conduct domestic surveillance of citizens. The Justice Department's legislative proposals would give federal law enforcement agents new access
Charlotte Twight
core  

Specialist training in general practice: Developments in social-legislation-based support – a data-driven introduction

open access: yesGMS Journal for Medical Education
Aims: Comprehensive provision of general healthcare (i.e. primary care) within the populace is contingent on there being enough general practitioners (GPs) in proximity to patients.
Rass, Simon   +2 more
doaj   +1 more source

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