Results 1 to 10 of about 100,837 (319)

Performance estimation on micro gas turbine plant recuperator [PDF]

open access: yesINCAS Bulletin, 2016
In order to accomplish a thermodynamic analysis of a micro gas turbine plant, while satisfying conditions related to different configurations, different input data sets and a series of imposed thermodynamic parameters, assumptions are necessary regarding
Laura Alina STIKA   +3 more
doaj   +1 more source

Are the Romanian natural protected areas properly covering the wetland? [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2020
Wetlands host an important biodiversity, provide important ecosystem services, and are threatened and vulnerable ecosystems, representing a priority for the conservation of biodiversity.
PETRIŞOR Alexandru-Ionuţ   +1 more
doaj   +1 more source

New modified chitosan composites and nanocomposites for different applications

open access: yesJournal of Scientific Research in Science, 2021
The present work focuses on the preparation of chitosan composite and chitosan nanocomposite derivatives for different applications. Chitosan was modified with bentonite or nano-bentonite to give chitosan composite and nanocomposite derivatives hydrogels
Taghreed H. Abdalla   +4 more
doaj   +1 more source

Medicinal Product Use Reglandin D-(+) - Cloprostenol, Synthetic Analogue of Prostaglandins F2α Natural Body in Fighting with Anestrus Lute (CL) in Cattle

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The studies made by us are based on fundamental biological role of prostaglandin modulator of hormonal actions, influxs nerve transmission and cellular ionic exchange.
George Florea Tobă   +7 more
doaj  

Subsonic Jet Pump Comparative Analysis [PDF]

open access: yesINCAS Bulletin, 2018
The paper presents the numerical and experimental studies carried out to optimize, from an aerodynamic point of view, a subsonic jet pump used on aircraft.
George Bogdan GHERMAN   +2 more
doaj   +1 more source

Numerical investigation of a new LH2 centrifugal pump concept used in space propulsion [PDF]

open access: yesINCAS Bulletin, 2018
The present study deals with efficiency increase of a centrifugal pump for liquid rocket propulsion by using an innovative concept. With this new pump design the axial length will be reduced by 60% and 20% mass weight towards a classic two stage ...
Ion MALAEL   +2 more
doaj   +1 more source

Fenton’s Oxidation of Personal Care Product (PCP) Wastewater: A Kinetic Study and the Effects of System Parameters

open access: yesInternational Journal of Technology, 2021
Personal care products (PCPs) are considered an emerging class of pollutants, and PCP wastewater is classified as hazardous because it contains organic compounds, which are linked to high chemical oxygen demand (COD) concentrations.
Lieke Riadi   +3 more
doaj   +1 more source

The Effectiveness of Variations in Contact Time and Density of Water Hyacinth Plants in Reducing COD Level in Tofu Industrial Wastewater

open access: yesJurnal Presipitasi, 2021
Tofu industry X is one of 24 tofu industries in Bandungan, producing wastewater with a high organic matter content of 600 liters per day. The industry does not have a waste treatment plant and is directly discharged into water bodies, leading to ...
Wahyu Rizki Nur Cahyani   +2 more
doaj   +1 more source

Concept Study of Radio Frequency (RF) Plasma Thruster for Space Propulsion [PDF]

open access: yesINCAS Bulletin, 2016
Electric thrusters are capable of accelerating ions to speeds that are impossible to reach using chemical reaction. Recent advances in plasma-based concepts have led to the identification of electromagnetic (RF) generation and acceleration systems as ...
Anna-Maria Theodora ANDREESCU   +4 more
doaj   +1 more source

In search of a relevant index measuring territorial disparities in a transition country. Romania as a case study

open access: yesDIE ERDE: Journal of the Geographical Society of Berlin, 2013
Countries in transition to a market economy exhibit increased regional disparities, leading to differences in the standard of life and in the chances of the population to benefit from the radical socio-economic and political changes.
Ianoş, Ioan   +5 more
doaj   +1 more source

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