Results 1 to 10 of about 971,010 (279)

Review of casing while drilling technology [PDF]

open access: yesPodzemni Radovi, 2016
Conventional drilling methods have been plagued with huge operational and financial challenges, such as cost of purchasing, inspecting, handling, transporting the drill equipment and most importantly, tripping in-and-out of the drill string whenever the ...
Pavković Bojan   +2 more
doaj   +1 more source

Simulation of temperature-pressure profiles and wax deposition in gas-lift wells [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2017
Gas-lift is an artificial lift method in which gas is injected down the tubing- -casing annulus and enters the production tubing through the gas-lift valves to reduce the hydrostatic pressure of the formation fluid column.
Sevic Snezana, Grubac Branko
doaj   +1 more source

Como tem sido planejada a Segurança Pública no Brasil?

open access: yesRevista Brasileira de Segurança Pública, 2020
: O presente artigo visa analisar as motivações e os objetivos propostos na elaboração dos Planos e Programas Nacionais de Segurança Pública lançados após o advento da Constituição Federal de 1988, que são: Os Planos de 1991, de 2000, de 2003, o ...
Marlene Inês Spaniol   +2 more
doaj   +1 more source

Short-Stranded Zein Fibers for Muscle Tissue Engineering in Alginate-Based Composite Hydrogels

open access: yesGels, 2023
Cultivated meat is a nascent technology that aims to create an environmentally and animal-friendly alternative to conventional meat. Producing skeletal muscle tissue in an animal-free system allowing for high levels of myofusion and maturation is ...
Lea Melzener   +6 more
doaj   +1 more source

Seasonal Variability of Resuspension [PDF]

open access: yesMATEC Web of Conferences, 2022
Particulate air pollution in cities is caused by a variety of sources. One of the less-studied contributors is wind-induced particle resuspension. As the wind speed increases, particles are removed from surfaces.
Linda Jakub   +4 more
doaj   +1 more source

Using the concepts of homogeneity in additional tests of electronic components for space applications

open access: yesКосмические аппараты и технологии, 2020
In modern conditions in the Russian Federation the equipment of spacecraft with a highly reliable electronic components is possible only through testing technical centers which act as a link between manufacturers of electronic components and their ...
S. M. Golovanov   +2 more
doaj   +1 more source

A Unified Internal Flow Model with Fluid Momentum for General Application in Shipflooding and Beyond

open access: yesJournal of Marine Science and Engineering, 2023
This paper deals with the development and validation of a unified internal flow model (UIF) for the prediction of fluid behaviour in a network of 3D floodable cells such as an internal ship compartment subdivisions.
Riaan van ’t Veer   +2 more
doaj   +1 more source

A simplified and defined serum-free medium for cultivating fat across species

open access: yesiScience, 2023
Summary: Cultivated meat is a promising technology with the potential to mitigate the ethical and environmental issues associated with traditional meat. Fat plays a key role in the meat flavor; therefore, development of suitable adipogenic protocols for ...
Rada Mitić   +4 more
doaj   +1 more source

Evaluation of the Chemical Characteristics and Predictive Model of Water-Soluble Inorganic Ions for Fine Particulate Matter Generated in Pohang [PDF]

open access: yes대한환경공학회지, 2023
Objectives This study aims to contribute to establishing the regional effective management of fine particulate matter by evaluating the chemical characteristics and contribution of fine particulate matter, and the accuracy of predictive model of fine ...
Gi-Chang Lee   +8 more
doaj   +1 more source

Seasonal variability of Concentration, Chemical Composition and Aerodynamic Distribution of Particulate Matter in Tehran [PDF]

open access: yesSustainable Earth Trends, 2023
In recent years, the concentration of suspended particles in the atmosphere of Tehran has been increasing. Therefore, we see more polluted days in this city. This situation has had economic, health, welfare, social and negative effects. In this study, we
Balal Oroji
doaj   +1 more source

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