Results 31 to 40 of about 4,245,541 (321)

Performance characteristics of a new structured packing [PDF]

open access: yes, 2010
A new structured packing using carbon fibres, called Sepcarb® 4D, is presented. This packing has several attractive properties, such as high voidage (ε=94%) and high effective area (a=420 m2 m−3).
Abbé, François   +6 more
core   +2 more sources

Weight Analysis of Influence Factors and Potential Evaluation Method for Chemical Combination Flooding

open access: yesE3S Web of Conferences, 2018
In this paper, the weight coefficient of influencing factors for chemical combination flooding is determined by using grey correlation theory. A calculation method for comprehensive evaluation score of chemical combination flooding is established.
Zhaoxia LIU   +4 more
doaj   +1 more source

Data-based fault detection in chemical processes: Managing records with operator intervention and uncertain labels [PDF]

open access: yes, 2016
Developing data-driven fault detection systems for chemical plants requires managing uncertain data labels and dynamic attributes due to operator-process interactions.
Askarian, Mahdieh   +3 more
core   +1 more source

Chemical Priming with Brassinosteroids to Mitigate Responses of Avocado (Persea americana) Trees to Flooding Stress

open access: yesHorticulturae, 2022
Priming involves the exposure of plants to a mild stress to increase tolerance to a more intense stress in the future. Chemical priming with brassinosteroids reduces the negative effects of flooding on the physiology and survival of some plant species ...
Melinda H. Yin   +3 more
doaj   +1 more source

Predicting unimolecular chemical reactions: Chemical flooding

open access: yesThe Journal of Chemical Physics, 2002
We present a method to predict products, transition states, and reaction paths of unimolecular chemical reactions such as dissociation or rearrangement reactions of small to medium sized molecules. The method thus provides the necessary input for established procedures to compute barrier heights and reaction rates, which conventionally have to be ...
Mueller, E.   +2 more
openaire   +3 more sources

Scaleup Methodology for Chemical Flooding [PDF]

open access: yesSPE Annual Technical Conference and Exhibition, 2010
Abstract Accurate simulation of chemical flooding requires a detailed understanding of numerous complex mechanisms and model parameters where grid size has a substantial impact upon results. In this paper we show the effect of grid size on parameters such as phase behavior, interfacial tension, surfactant dilution and salinity gradient ...
Faiz Koyassan Veedu   +2 more
openaire   +1 more source

Study on low-heat synergistic chemical profile control and flooding technology in Bohai Oilfield

open access: yesFrontiers in Energy Research, 2023
Introduction: Through the combination of hot water and chemical agent, the low-heat synergistic chemical profile control and flooding technology can not only reduce the risks of sand production and string damage caused by high-temperature thermal ...
Liang Dan   +5 more
doaj   +1 more source

Synthesis and Characterization of Polymeric Surfactant from Palm Oil Methyl Ester and Vinyl Acetate for Chemical Flooding

open access: yesReaktor, 2021
Surfactants for enhanced oil recovery are generally made from non-renewable petroleum sulfonates and their prices are relatively expensive, so it is necessary to synthesis the bio-based surfactants that are renewable and ecofriendly.
Agam Duma Kalista Wibowo   +4 more
semanticscholar   +1 more source

Change in groundwater chemistry as a consequence of suppression of floods: the case of the Rhine floodplain [PDF]

open access: yes, 2003
Spatio-temporal variations of nitrogen, phosphorus and base cation concentrations in groundwater were related to the drastic change in hydrological conditions of the Rhine alluvial floodplain (Eastern France), which has been disconnected from the river ...
Sanchez-Pérez, José-Miguel   +1 more
core   +1 more source

A typology of marine and estuarine hazards and risks as vectors of change : a review for vulnerable coasts and their management [PDF]

open access: yes, 2014
This paper illustrates a typology of 14 natural and anthropogenic hazards, the evidence for their causes and consequences for society and their role as vectors of change in estuaries, vulnerable coasts and marine areas.
Cutts, Nicholas D.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy