Results 111 to 120 of about 2,155,394 (299)

Money, credit, banking, and payments system policy [PDF]

open access: yes
This article employs contract theory to analyze the evolution of the payments system. Insights gained are used subsequently to evaluate three prominent public payments system policies: monetary policy, central bank lending, and deposit insurance.Payment ...
Marvin Goodfriend
core  

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Contracting innovations and the evolution of clearing and settlement methods at futures exchanges [PDF]

open access: yes
Defining futures contracts as substitutes for associated cash transactions enables a discussion of the evolution of controls over contract nonperformance risk. These controls are incorporated into exchange methods for clearing contracts.
James T. Moser
core  

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May   +9 more
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Temporary stabilisation: Russia-Ukraine gas transit deal. OSW Commentary NUMBER 317 31.12.2019 [PDF]

open access: yes, 2019
A five-year contract concerning Russian gas transit via Ukraine was signed after four days of negotiations on 30 December 2019. The previous contract expired on 1 January 2020.
Kardaś, Szymon, Konończuk, Wojciech
core  

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi   +3 more
wiley   +1 more source

Development of the Competency Model of Graduate Student of the Supplementary Programs in the Field Public Procurement

open access: yesУправленческое консультирование, 2018
The article deals with the process of generation and development of the competency model of graduate student of the supplementary programs in the field public procurement.
Olga Aleksandrovna Shabanova
doaj  

Instruments to stimulate competition in public procurement: international practice

open access: yesВестник университета
This article considers the tools used in foreign practice to increase competition and remove restrictions on participation of companies in public procurement. Open competition means that all qualified companies have the right to participate in the public
T. V. Tischenko
doaj   +1 more source

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