Results 11 to 20 of about 129,569 (207)

Geothermal power based ULTDH for cooling and heating purposes [PDF]

open access: yesE3S Web of Conferences, 2019
Ultra-low temperature district heating systems facilitate use of waste and renewable heat sources. The article presents a possible scheme of operation and optimisation of small ultra-low temperature district heating system consisting of waste heat source,
Ciapała Bartłomiej, Janowski Mirosław
doaj   +1 more source

Polyhydroxyalkanoates: Biosynthesis Optimization and Design of Antimicrobial Composites

open access: yesInnovative Biosystems and Bioengineering, 2023
Background. The accumulation of plastic waste negatively affects the environment and human health. Currently, one of the strategies to address this global ecological problem involves the utilization of biodegradable plastics instead in place of synthetic
Nataliia Koretska   +7 more
doaj   +1 more source

Method of ecological assessment of oil-contaminated soils

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2016
A method for determination of the ecological condition of oil-contaminated soils was developed. This method is suitable for use in a wide range of oil concentrations in soil, ranging from 0–20% and provides a quantitative assessment of phytotoxicity ...
O. I. Romaniuk   +3 more
doaj   +1 more source

Colloidal Characteristics of Water Systems of Rhamnolipid Biocomplex of Strain Pseudomonas sp. PS-17 with Tween-80 and their Prospects for Biotechnology

open access: yesНаукові вісті Національного технічного університету України "Київський політехнічний інститут", 2017
Background. Efficiency of mixed systems of biogenic and synthetic surfactants, based on their colloidal chemical properties, in environmentally safe technologies. Objective.
Elena V. Karpenko   +5 more
doaj   +1 more source

Geological and Thermodynamic Analysis of Low Enthalpy Geothermal Resources to Electricity Generation Using ORC and Kalina Cycle Technology

open access: yesEnergies, 2020
The article presents an assessment of the potential for using low enthalpy geothermal resources for electricity generation on the basis of the Małopolskie Voivodeship (southern Poland).
Michał Kaczmarczyk   +2 more
doaj   +1 more source

A new coral family and three new genera from the Lower Cretaceous of Puebla and Sonora (Scleractinia; Mexico)

open access: yesRevista Mexicana de Ciencias Geológicas, 2022
Solitary corals currently assigned to the genus Plesiosmilia are common elements in Late Jurassic to Early Cretaceous coral faunas. The genus itself is poorly defined and its systematic position is questionable.
Hannes Löser
doaj   +1 more source

Energetic and Environmental Aspects of Individual Heat Generation for Sustainable Development at a Local Scale—A Case Study from Poland

open access: yesEnergies, 2020
The housing sector, especially with respect to energy generation to provide heating and domestic hot water, has been identified, after transport, as contributing the most to air pollution and the occurrence of low emissions in Poland. In particular, this
Michał Kaczmarczyk   +2 more
doaj   +1 more source

First Member of ‘Higher Endomychidae’ (Coleoptera: Coccinelloidea) from the Mid-Cretaceous Amber of Myanmar and New Insights into the Time of Origin of the Handsome Fungus Beetles

open access: yesInsects, 2022
A new genus and species of the family Endomychidae (Coleoptera: Coccinelloidea): Cretostenotarsus striatus Tomaszewska, Szawaryn and Arriaga-Varela gen. et sp. nov.
Wioletta Tomaszewska   +2 more
doaj   +1 more source

Trace element geochemistry of kerogens from the central Niger Delta

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Trace elements in kerogens isolated from shale samples obtained from oil wells in the central Niger Delta were determined using atomic absorption spectrometry, with the aim to determine the depositional environment and source of the organic matter.
T. O. Jegede, S. A. Adekola, A. Akinlua
doaj   +1 more source

Enigmacursor mollyborthwickae, a neornithischian dinosaur from the Upper Jurassic Morrison Formation of the western USA

open access: yesRoyal Society Open Science
Although their remains have been known since the 1870s, the small, bipedal ornithischian dinosaurs from the Upper Jurassic Morrison Formation of the western USA remain poorly known. The historic type specimens are incomplete and poorly preserved and have
Susannah C. R. Maidment, Paul M. Barrett
doaj   +1 more source

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