Results 11 to 20 of about 2,760,890 (235)

Vertical upward flow patterns in small diameter tubes [PDF]

open access: yes, 2005
Two-phase flow patterns were studied in vertical small diameter tubes using R134a as the working fluid. The observed flow patterns include bubbly, dispersed bubble, confined bubble, slug, churn, annular and mist flow.
Chen, L, Tian, YS, Karayiannis, TG
core   +4 more sources

R134a flow patterns in small diameter tubes [PDF]

open access: yes, 2004
R134a vapour-liquid two-phase flow patterns were studied in vertical small diameter tubes. The observed flow patterns include bubbly, dispersed bubble, slug, churn, annular and mist flow.
Chen, L, Tian, YS, Karayiannis, TG
core   +4 more sources

Beta1 subunits enable fentanyl-induced BK channel activation and opioid regulation of cerebral artery diameter. [PDF]

open access: yesFEBS Open Bio
During the current opioid crisis, the majority of overdose deaths are attributed to ultra‐potent synthetic opioids, such as fentanyl. While fentanyl exerts its action via opioid receptors, we propose that potassium channels in the brain blood vessels may also sense fentanyl.
Thapa S   +4 more
europepmc   +2 more sources

Boiling two-phase pressure drop in small diameter tubes [PDF]

open access: yes, 2007
An experimental study of two-phase pressure drop in small diameter tubes is described in this paper. Stainless steel tubes of internal diameter and length of 4.26 mm, 500 mm and 2.01 mm, 211 mm were used. The working fluid was R134a and the range covered
Huo, X   +4 more
core   +4 more sources

R134a flow boiling heat transfer in small diameter tubes [PDF]

open access: yes, 2007
Copyright @ 2007 RT Edwards Inc.Boiling heat transfer in small diameter tubes has been experimentally investigated using R134a as the working fluid. The heat transfer periments were conducted with two stainless steel tubes of internal diameter 4.26 mm ...
Huo, Y, Karayiannis, TG, Tian, S
core   +5 more sources

A Note on the Maximum Genus of Graphs with Diameter 4 [PDF]

open access: yes, 2007
Let G be a simple graph with diameter four, if G does not contain complete subgraph K3 of order ...
WeiLi, He, Xiang, Ren, Lin, Zhao
core   +1 more source

A Benchmarking Algorithm to Determine Minimum Aggregation Delay for Data Gathering Trees and an Analysis of the Diameter-Aggregation Delay Tradeoff

open access: yesAlgorithms, 2015
Aggregation delay is the minimum number of time slots required to aggregate data along the edges of a data gathering tree (DG tree) spanning all the nodes in a wireless sensor network (WSN).
Natarajan Meghanathan
doaj   +1 more source

Diameter-Dependent Semiconducting Carbon Nanotube Network Transistor Performance

open access: yes, 2022
Single-walled carbon nanotube (SWCNT) network based devices show application potentials due to their extraordinary electric and optical properties, and the device performance is largely determined by the network morphology and tube–tube junction ...
Zhao Li (300229)   +2 more
core   +1 more source

Stem taper models for maritime pine plantations in Istanbul Sarıyer Region

open access: yesTurkish Journal of Forestry, 2020
Maritime pine (Pinus pinaster Ait.) is one of the most important tree species in Turkey for establish industrial plantations. In this study, stem taper models were developed for maritime pine plantations in İstanbul-Sarıyer region.
Utkun Karakuyu, Ramazan Ozçeli̇k
doaj   +1 more source

Flow boiling pressure drop of R134a in micro diameter tubes: Experimental results and assessment of correlations [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Mahmoud, MM   +3 more
core   +5 more sources

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