Results 111 to 120 of about 478,207 (326)

Conclusions for Poland in View of the Special Report of the European Court of Auditors Concerning Fighting Financial Fraud in Spending EU Funds

open access: yesProblemy Zarządzania, 2019
One of the essentials aims of the ECA’s special report on fighting fraud in spending EU funds is improving the correlation between the European Union law and national legal systems of Member States and developing cooperation of EU authorities with Member
Eugeniusz Ruśkowski   +1 more
doaj   +1 more source

Phase perturbation measurements through a heated ionosphere [PDF]

open access: yes
High frequency radiowaves incident on an overdense (i.e., HF-frequency penetration frequency) ionosphere produce electron density irregularities. The effect of such ionospheric irregularities on the phase of UHF-radiowaves was determined.
Frey, A., Gordon, W. E.
core   +1 more source

Laser interferometer micrometer system [PDF]

open access: yes, 1969
Laser micrometer measures dimensions of precision gyro and gas bearing parts using the principle of measuring light phase changes rather than a direct fringe count.
Logue, S. H.
core   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Enhancement of seismic resistance of buildings [PDF]

open access: yesUrbanism. Arhitectura. Constructii, 2014
The objectives of the paper are both seismic instrumentation for damage assessment and enhancing of seismic resistance of buildings. In according with seismic design codes in force the buildings are designed to resist at seismic actions.
Claudiu-Sorin Dragomir   +2 more
doaj  

Process techniques study of integrated circuits Quarterly report no. 13 [PDF]

open access: yes
Dielectric defects in oxide layers by surface irregularities, and ...
Meinhard, J. E.
core   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

open access: yesAdvanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof   +9 more
wiley   +1 more source

Experimental investigation and analysis of two sources of nozzle-thrust misalignment [PDF]

open access: yes, 1970
Asymmetry of nozzle's throat produces oscillatory type net side-force axial profile. Using mean values of localized static pressure and Mach number, scaling laws for flat-plate supersonic flow over protrusion are applied to nozzle expansion cone ...
Dowdy, M. W., Strand, L. D.
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

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