Results 261 to 270 of about 30,001 (308)

Pitting Corrosion Behaviour of Aluminium in Water Desalination Plants

Desalination, 1989
Abstract The pitting corrosion of aluminium in water containing pitting corrosion agents and metal cations at moderately high temperatures has been investigated by electrochemical and surface analysis methods. Heat pretreatment ameliorated the resistance to pitting corrosion and overcame the aggressive effect of Cl−.
M.G.A. Khedr, M.M.H. Badran, A.A. El Azhari   +2 more
openaire   +1 more source

Foraging pits, litter and plant germination in an arid shrubland

Journal of Arid Environments, 2010
Abstract Many animals create soil surface depressions (pits) while foraging for subterranean resources. Foraging pits typically fill with litter, organic debris and seed, retain moisture, and become hotspots for plant germination. This study aimed to examine whether artificial foraging pits, which mimic those created by Greater bilbies (Macrotis ...
James, A., Eldridge, D., Moseby, K.
openaire   +2 more sources

Pitting Corrosion Problems of Stainless Steels in a PTA Plant

CORROSION 2007, 2007
Abstract Severe pitting corrosion problems occurred in a Purified Terephthalic Acid (PTA) production plant. The materials of construction of the various vessels, columns, and piping that are of concern are 316L and 2205-Duplex stainless steels.
Oluwatoyin Ashiru, Abdullah Al-Refaie
openaire   +1 more source

Pitting of 316L stainless steel in flare piping of a petrochemical plant

Engineering Failure Analysis, 2010
Abstract Pitting was observed on a 6-in. (15 cm) flare piping made of stainless steel ASTM A312 Gr. Tp 316L, prior going into service in a petrochemical plant. The pits were in the heat-affected zone (HAZ) and fusion zone (FZ) boundary of the pipe seam welds. The FZ was also uniformly corroded.
E. Mohammadi Zahrani, A. Saatchi, A. Alfantazi   +2 more
openaire   +1 more source

Integrated problem of soaking pit heating and hot rolling scheduling in steel plants

Computers & Operations Research, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feng Li, Yanyan Zhang, Han Wei, Xiaofan Lai   +3 more
openaire   +1 more source

Effect of planting material and seed rate in pit planted sugarcane (Saccharum spp. hybrid complex) in sub-tropical India

Indian Journal of Agronomy, 2001
To find out the optimum and economic viable planting material and seed rate in pit method of planting in sugar- cane ( Saccharum spp.), a field experiment was conducted during spring season of 2007-08 and 2008-09 at Karnal. Experiment consisting of fourteen treatments (two budded setts and pre-germinated cane settlings planted in pits @ 12,15,18,21 and
null MEHAR CHAND, null ANIL KHIPPAL, null SAMAR SINGH, null ROSHAN LAL, null RAN SINGH   +4 more
openaire   +1 more source

Natural plant colonization of borrow pits in boreal forest highlands of eastern Canada

Botany, 2011
Plant colonization after gravel extraction for road construction is slow and is often considered to be primary succession. The goal of this study was to identify the plant communities that spontaneously colonized borrow pits located in boreal climate zones and to assess how environmental variables influenced this colonization process.
Sandrine Hugron, Roxane Andersen, Monique Poulin, Line Rochefort   +3 more
openaire   +1 more source

Sulfur Storage Pits in Petrochemical Plants: Deterioration Mechanism, Materials Selection, and Repair

Practice Periodical on Structural Design and Construction, 2014
AbstractTo mitigate concrete sulfur storage pits deterioration, it is important to understand the mechanisms leading to concrete deterioration. The Claus chemical process is the industry standard for obtaining sulfur from hydrogen sulphide gas (derived from natural gas).
openaire   +1 more source

Early growth of pigeonpea under open-pit planting and restricted weeding in semiarid Zimbabwe

Agroforestry Systems, 1998
Simple and efficient tree-establishment methods are a key to the success of agroforestry technologies under limited-resource conditions. An experiment was conducted to test the effect of open pit planting and reduced weeding on soil moisture content and growth of pigeonpea (Cajanus cajan (L.) Millsp.). The results indicated that open-pit planting might
C. Nyakanda, A. B. Mashingaidze, E. Zhakata   +2 more
openaire   +1 more source