Results 121 to 130 of about 449,166 (315)

Effect of Oil on Flow Boiling Heat Transfer and Flow Patterns of CO2 in 11.2 mm Horizontal Smooth and Enhanced Tube

, 2012
Flow boiling heat transfer characteristics of CO2 with and without oil were investigated experimentally in horizontal smooth and enhanced tubes with an inner diameter of 11.2 mm.
Hrnjak, Predrag S., Kim, Seongho
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Assessing Anesthesia Providers’ Preferences and Perceptions of Adequacy of Endotracheal Tube Cuff Pressure Assessment Techniques: A Quality Improvement Project

, 2023
This Doctor of Nursing Practice project assessed CRNA preferences and perceptions of adequacy regarding subjective versus objective methods to assess endotracheal tube cuff pressure. The ideal pressure within an endotracheal tube cuff is approximately 20-
NC DOCKS at East Carolina University, Travlos, Hannah   +1 more
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Analysis on ignition characteristics and stability of large length-diameter tube with high-low pressure chamber: Experimental and two-phase flow method research

Case Studies in Thermal Engineering
The large length-diameter ratio low-pressure tube, characterized by its long ignition channel and multiple ignition orifices distributed along its length, demonstrates an excellent ignition performance, emerges as an ideal ignition component for large ...
Shenshen Cheng, Ruyi Tao, Xinggan Lu, Xiaoting Cui, Shao Xue   +4 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Boiling two-phase pressure drop in small diameter tubes

, 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, Karayiannis, TG, Tian, YS, Shiferaw, D, Kenning, DBR   +4 more
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Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Saturated flow boiling in small- to micro- diameter metallic tubes: Experimental results and modeling

, 2008
Some results of a long-term study of flow boiling patterns, heat transfer rates and pressure drop of R134a at pressures of 6-14 bar in five vertical stainless steel tubes of internal diameter 4.26, 2.88, 2.01, 1.1 and 0.52 mm are presented in this paper.
Karayiannis, TG, Shiferaw, D, Kenning, DBR   +2 more
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Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Experimental flow boiling study in a 0.52 mm diameter vertical tube using R134a

, 2008
This article is also available online from the link below.Experimental results for R134a boiling on a vertical stainless steel tube of internal diameter 0.52 mm are presented in this paper.
Shiferaw, J, Mahmoud, MM, Karayiannis, TG, Kenning, DBR   +3 more
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Assessing Anesthesia Providers’ Perceptions of Adequacy of Endotracheal Tube Cuff Pressure Assessment Techniques: A Doctor of Nursing Practice Project

, 2023
Endotracheal tube cuff pressure management is an important patient care intervention within the intraoperative setting. Current management practices include several subjective measurement methods as well as an objective manometer device. Due to a lack of
Brown, Charlotte, NC DOCKS at East Carolina University   +1 more
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