Results 21 to 30 of about 4,950,848 (297)

Removed

open access: yes, 2022
Removed until further notice.
openaire   +2 more sources

Determination of the Interzonal Airflows in Naturally Ventilated Dwellings Based on Concentration Measurements of the Metabolic Carbon Dioxide

open access: yesEnergies, 2022
The role of interzonal airflows is especially pronounced in naturally ventilated buildings. In such buildings, reversed airflows in the ventilation stacks might occur as well.
Anna Bulińska, Zbigniew Buliński
doaj   +1 more source

Removing singularities [PDF]

open access: yesJournal of High Energy Physics, 2003
Big bang/crunch curvature singularities in exact CFT string backgrounds can be removed by turning on gauge fields. This is described within a family of {SL(2)xSU(2)xU(1)_x}/{U(1)xU(1)} quotient CFTs. Uncharged incoming wavefunctions from the ``whiskers'' of the extended universe can be fully reflected if and only if a big bang/crunch curvature ...
Elitzur, Shmuel   +2 more
openaire   +2 more sources

Greenness of procedures using NADES in the preparation of vegetal samples: Comparison of five green metrics

open access: yesTalanta Open, 2022
The principles of green analytical chemistry have led to the development of analytical procedures that are increasingly sustainable. Different metrics have been created for the evaluation of greenness, although determination of the green nature of new ...
Sabrina S. Ferreira   +9 more
doaj   +1 more source

Formulating a Protocol for Decommissioning of Offshore Oil and Gas Installations in the Gulf of Guinea Region: A Comparative Study [PDF]

open access: yesIranian Journal of International and Comparative Law, 2023
Oil and Gas exploration and exploitations have been ongoing for more than half a century in the Gulf of Guinea (GoG). However, recent discoveries of oil and gas deposits deep offshore along the coast of the GoG has increased exploration activities ...
Onyedikachi Alozie
doaj   +1 more source

Hospital wastewater as hotspots for pathogenic microorganisms spread into aquatic environment: A review

open access: yesFrontiers in Environmental Science, 2023
Combined with human-to-human contact, the potential for SARS-CoV-2 virus transmission via aerosols and feces raises the urgency for effective treatment of hospital wastewater (HWW), which has been assumed as an important source of pathogenic ...
Tingting Yuan, Tingting Yuan, Yaya Pian
doaj   +1 more source

Two-dimensional heat transfer analysis of timber structure walls filled with hemp-lime composite

open access: yesMATEC Web of Conferences, 2019
Hemp-lime composite is a thermal insulating material used as a filling in timber frame construction walls. It is a material based on the wooden part of industrial hemp stalk (hemp shives) and lime binder.
Brzyski Przemysław   +2 more
doaj   +1 more source

Preparation of two-component Pickering emulsion hydrogels for the removal of zinc ions from aqueous solutions

open access: yesWater Science and Technology, 2023
Traditional liquid-solid extraction methods for the removal of zinc ions (Zn(II)) were generally limited by the leakage of extractant and low extraction capacity.
Jing Gao   +4 more
doaj   +1 more source

Adsorption of Saliva Related Protein on Denture Materials: An X-Ray Photoelectron Spectroscopy and Quartz Crystal Microbalance Study

open access: yesAdvances in Materials Science and Engineering, 2016
The aim of this study was to evaluate the difference in the adsorption behavior of different types of bovine salivary proteins on the PMMA and Ti QCM sensors are fabricated by spin-coating and sputtering onto bare QCM sensors by using QCM and X-ray ...
Akiko Miyake   +4 more
doaj   +1 more source

The effectiveness of conventional trickling filter treatment plants at reducing concentrations of copper in wastewaters [PDF]

open access: yes, 2009
This is the post-print version of the final paper published in Science of the Total Environment. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Belarra   +42 more
core   +1 more source

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