Results 81 to 90 of about 751,443 (212)

Experimental Investigation of Characteristics of Sand Production in Wellbore during Hydrate Exploitation by the Depressurization Method

open access: yesEnergies, 2018
Sand production is the process in which formation sand and gravel would migrate into the wellbore by the flow of reservoir fluids. This is a significant problem that endangers the safety of hydrate exploitation.
Jingsheng Lu   +5 more
doaj   +1 more source

IMPACT OF SHELTERBELTS ON GROUNDNUT PRODUCTION IN THERILANDS: A DECOMPOSITION ANALYSIS. [PDF]

open access: yes
In areas characterized by wind erosion and shifting sand dunes, shelterbelts can increase crop yields. Groundnut yields in southern India increased with the introduction and maturation of shelterbelts.
Maynard, Leigh J., Narayanan, V. Venkat
core   +1 more source

Analysis on Casing Deformation and Buckling Risk in Sand Production Section of Thermal Recovery Horizontal Wells

open access: yesShiyou jixie
Considering the impact of sand production from reservoir on casing deformation and stability in thermal recovery wells, a test was conducted to investigate how high temperature steam affects the rock properties of heavy oil reservoirs.Combined with heat ...
Xiao Yao   +4 more
doaj  

Effect of cast steel production metallurgy on the emergence of casting defects [PDF]

open access: yes, 2016
The paper documents metallurgical possibilities of high alloy cast steel production in open induction medium frequency furnaces and an electric arc furnace in a gravity die casting foundry. The observation was focused on the emergence of gas defects in
Beňo, Jaroslav   +7 more
core   +2 more sources

Biogeographic analysis of the Tortugas Ecological Reserve: Examining the refuge effect following reserve establishment [PDF]

open access: yes, 2004
Almost 120 days at sea aboard three NOAA research vessels and one fishing vessel over the past three years have supported biogeographic characterization of Tortugas Ecological Reserve (TER).
Burke, John S.   +7 more
core  

A Module Experimental Process System Development Unit (MEPSDU) [PDF]

open access: yes
The development of a cost effective process sequence that has the potential for the production of flat plate photovoltaic modules which meet the price goal in 1986 of 70 cents or less per Watt peak is described.

core   +1 more source

Freshwater biology and water supply in Britain [PDF]

open access: yes, 1946
This paper is designed to give a general account of freshwater biology as it bears on waterworks practice. Most water that is used for consumption will commonly go through a storage reservoir.
Gardiner, A.C.   +2 more
core  

Gryphon Injection Wing Modeling [PDF]

open access: yes, 2010
Imperial Users ...
Bayetova, Raushan, Bayetova, Raushan
core  

Ceramic composition at Chalcolithic Shiqmim, northern Negev desert, Israel: investigating technology and provenance using thin section petrography, instrumental geochemistry and calcareous nannofossils [PDF]

open access: yes, 2018
Technological innovations in ceramic production and other crafts are hallmarks of the Chalcolithic period (4500–3600 BCE) in the southern Levant, but details of manufacturing traditions have not been fully investigated using the range of analytical ...
Burton, Margie M   +3 more
core  

QUOTATION FOR THE VALUE ADDED ASSESSMENT DURING PRODUCT DEVELOPMENT AND PRODUCTION PROCESSES [PDF]

open access: yes
This communication is based on an original approach linking economical factors to technical and methodological ones. This work is applied to the decision process for mix production. This approach is relevant for costing driving systems.
Alain Bernard   +3 more
core  

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