Results 11 to 20 of about 28,690 (131)

The Influence of Different Assist Gases on Ductile Cast Iron Cutting by CO2 Laser

open access: yesArchives of Foundry Engineering, 2017
This article deals with the technology and principles of the laser cutting of ductile cast iron. The properties of the CO2 laser beam, input parameters of the laser cutting, assist gases, the interaction of cut material and the stability of cutting ...
Meško J., Nigrovič R., Zrak A.
doaj   +1 more source

Odprt dostop do znanja za vse ljudi je danes temeljna zahteva sodobne družbe – kaj ga omogoča in kje so ovire?

open access: yesAS: Andragoška Spoznanja, 2012
Kot je za življenje človeka nujen zrak, diha- nje, tako je danes vsem potrebno tudi znanje.Postalo je pogoj za preživetje. O tem se mnogo govori, na potrebo po znanju opozarjajo javni dogodki, kot je denimo teden vseživljenjskega izobraževanja, pa ...
Ana Krajnc
doaj   +1 more source

An Analysis of the Microstructure, Macrostructure and Microhardness of Nicr-Ir Joints Produced by Laser Welding with and without Preheat

open access: yesArchives of Metallurgy and Materials, 2016
This paper discusses some of the basic problems involved in laser welding of dissimilar materials with significant differences in melting points. It focuses on the micro and macrostructure of laser welded NiCr-Ir microjoints used in central spark plug ...
Różowicz S., Tofil Sz., Zrak A.
doaj   +1 more source

Vnímání, kauzalita a pozornost Roger Bacon a Petr Olivi [PDF]

open access: yes, 2016
[Sensation, Causality, and Attention: Roger Bacon and Peter Olivi] This paper investigates what conditions are to be met for sensory perception to occur.
Anthony Linden (1673590)   +3 more
core   +6 more sources

Lap weld joint modelling and simulation of welding in programme SYSWELD

open access: yesMATEC Web of Conferences, 2018
Simulations of the welding process for applications of practice using SYSWELD are presented. This paper presents simulation of welding in the repair of high-pressure gas pipeline with steel sleeve with composite filling.
Koňár Radoslav   +2 more
doaj   +1 more source

Advancements and Challenges in Antiamyloid Therapy for Alzheimer’s Disease: A Comprehensive Review

open access: yesInternational Journal of Alzheimer’s Disease, Volume 2024, Issue 1, 2024.
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder caused by the accumulation of amyloid‐beta (Aβ) proteins and neurofibrillary tangles in the brain. There have been recent advancements in antiamyloid therapy for AD. This narrative review explores the recent advancements and challenges in antiamyloid therapy. In addition, a summary of
Semira Abdi Beshir   +6 more
wiley   +1 more source

Historical development of terms oxidation and reduction [PDF]

open access: yes, 2016
Filozofske osnove razumijevanja i razvoja kemije sežu još u antičko vrijeme. Od ranih grčkih filozofa do aleksandrijske protokemije procesi su se pokušavali objasniti različitim počelima. Na kraju je na kemiju najviše utjecala Aristotelovska pretpostavka
Krajinović, Franjo
core   +1 more source

Development of two-species bacterial biofilm at air-liquid interface [PDF]

open access: yes, 2018
Bakterijski biofilm je kompleks građen od jedne ili češće više vrsta bakterija koje su ugrađene u matriks izvanstanične polimerne tvari (eng. extracellular polymeric substance EPS) kojeg same proizvode. Takvi bakterijski sustavi rade velike štete kako na
Oršolić, Daniela
core   +1 more source

Finite element simulation of laser cutting process of steel sheet

open access: yesMATEC Web of Conferences, 2018
Lasers are widely used in industry as cutting tools due to ultra flexibility of the cutting conditions, obtaining high quality end product, quick set up, non-mechanical contact between the workpiece and the tool, and small size of the heat affected zone.
Meško Jozef   +3 more
doaj   +1 more source

The contribution of condensation-corrosion in the morphological evolution of caves in semi-arid regions: preliminary investigations in the Kyrenia Range, Cyprus

open access: yesActa Carsologica, 2019
The condensation-corrosion process occurs when airflow cools at the contact with colder cave walls. Condensed water becomes aggressive for soluble rocks and corrodes the walls.
Didier Cailhol   +10 more
doaj   +1 more source

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