Results 161 to 170 of about 555,047 (351)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Determinación de la presencia de nitratos/nitritos y manganeso en el agua proveniente del pozo que alimenta la zona baja del cantón Huaquillas

Ciencia UNEMI, 2017
The objective of this research was to determine the levels of nitrates, nitrites and manganese in thewaterfromthe "Parador Turístico" well; in additionthe presence of pathogens and its influence on the health of theinhabitants of the La Primavera ...
Román-Samaniego , Oscar, Cortez-Suárez , Liliana, Arce-Rodríguez , Juanita, Hidalgo-Romero , Cristian, Cajas-Palacios , Margarita   +4 more
doaj  

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

EFFECT OF SOIL POTASSIUM LEVELS AND DIFFERENT POTASSIUM FERTILIZERS ON YIELD, MACROELEMENT AND CHLORIDE NUTRION STATUS OF APPLE TREES IN FULL FRUITION PERIOD

Acta Scientiarum Polonorum: Hortorum Cultus, 2011
The experiment was established in the spring 1999 on lessive soil developed from light boulder clay. Apple trees of Golden Delicious cv. on M.26 rootstock were planted in 3.5 × 1.2 m (2381 trees·ha-1) spacing. Research involved the effect of diversified 
Adam Szewczuk, Andrzej Komosa, Ewelina Gudarowska   +2 more
doaj  

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

THE EFFECT OF PLANT BIOSTIMULATION WITH ‘PENTAKEEP V’ AND NITROGEN FERTILIZATION ON YIELD, NITROGEN METABOLISM AND QUALITY OF SPINACH

Acta Scientiarum Polonorum: Hortorum Cultus, 2010
Foliar application of fertilizers containing biostimulators can influence yield and the uptake and accumulation of NO3 - by plants. The aim of the research was to determine the influence of foliar nutrition with ‘Pentakeep V’ and diverse doses of ...
Sylwester Smoleń, Włodzimierz Sady, Joanna Wierzbińska   +2 more
doaj  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

THE ACCUMULATION OF CHEMICAL COMPOUNDS IN STORAGE ROOTS BY CARROTS OF DIFFERENT CULTIVARS DURING VEGETATION PERIOD

Acta Scientiarum Polonorum: Hortorum Cultus, 2009
In 2006–2008 the field experiment was carried out in Warsaw University of Life Sciences to determine the differences in accumulation of some chemical compounds in the storage roots of carrot cultivars of various colour and shape of the root. Carrot cvs.:
Marek Gajewski, Paweł Szymczak, Marta Bajer   +2 more
doaj  

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source