Results 21 to 30 of about 5,141,889 (70)

Numerical modeling of the critical pipeline inclination for the elimination of the water accumulation on the pipe floor in oil-water fluid flow

open access: yesPetroleum, 2021
In this work, numerical models were developed to investigate the critical inclination of a pipeline to eliminate the water accumulation at the floor of the pipe carrying oil-water fluid.
Xiaoqin Song   +5 more
doaj   +1 more source

Investigations of hot water temperature changes at the pipe outflow

open access: yesE3S Web of Conferences, 2017
In this paper a process of cold water withdrawing from hot water supply pipe systems without recirculation is considered. System of partial differential equations was used to describe the pipe and water temperature changes.
Wojtkowiak Janusz   +1 more
doaj   +1 more source

Prevalence of water pipe smoking in the city of Mashhad (North East of Iran) and its effect on respiratory symptoms and pulmonary function tests

open access: yesLung India, 2014
Background: The prevalence of water pipe (WP) smoking was studied using a standard questionnaire. Pulmonary function tests were also compared between WP smokers and non-smokers.
Mohammad Hossain Boskabady   +4 more
doaj   +1 more source

Pharmaceutical water systems: a thermal-fluid analysis of pipe dead-legs [PDF]

open access: yes, 2005
The most commonly used technique for flow exchange, fluid isolation and removal in pharmaceutical water systems, is the installation of a branch tee with a conventional two-way outlet port valve.
Austen, Benjamin L.
core   +2 more sources

Design and experiments of an automatic pipe winding machine

open access: yesJournal of Agricultural Engineering, 2023
To solve the time-consuming and laborious problem of manual winding and unwinding water pipes by field workers during irrigation or pesticide spraying in agricultural production, an automatic pipe winding machine for winding and unwinding water pipes ...
Yanmei Meng   +4 more
doaj   +1 more source

Moisture Accumulation and Its Impact on the Thermal Performance of Pipe Insulation for Chilled Water Pipes in High Performance Buildings [PDF]

open access: yes, 2012
Mechanical pipe insulation systems are commonly applied to cold piping surfaces in most industrial and commercial buildings in order to limit the heat losses and prevent water vapor condensation on the pipe exterior surfaces.
Cremaschi, Lorenzo   +2 more
core   +1 more source

Potential of heat pipe technology in nuclear seawater desalination [PDF]

open access: yes, 2009
The official published version of this article can be found at the link below.Heat pipe technology may play a decisive role in improving the overall economics, and public perception on nuclear desalination, specifically on seawater desalination.
Anastasov, V, Khamis, I, Jouhara, H
core   +1 more source

Evaluation of concurrent use of tobacco products (water pipe and cigarettes) and associated factors in adults in Tehran

open access: yesTobacco Induced Diseases, 2018
Background Dual use of tobacco products such as cigarettes and water pipe may be associated with increased risk of nicotine dependence and smoking-related complications. Accurate statistics are not available in this regard in Iran.
Zahra Hessami   +4 more
doaj   +1 more source

Research Note: Tracing pathways of entry and persistence of facultative pathogenic and antibiotic-resistant bacteria in a commercial broiler farm with substantial health problems

open access: yesPoultry Science, 2020
On a commercial broiler farm with substantial health problems, shown by a reported loss rate of approx. 10% and regular antibiotic use, samples were taken at different locations in 2 barns, with the aim of analyzing possible entry routes and persistence ...
Céline Heinemann   +5 more
doaj   +1 more source

Water pipe smoking: an emerging trend with detrimental consequences

open access: yesThe Pan African Medical Journal, 2014
The unprecedented rise in prevalence of water pipe smoking poses a raft of deleterious effects to public health. A past time communal activity mostly practised in Middle East has now extended its tentacles to engulf most parts of the world.
Henry Nyongesa, Jacob Adegu
doaj   +1 more source

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