Results 1 to 10 of about 2,560,944 (167)

The closed circuit and the low flow systems

open access: yesIndian Journal of Anaesthesia, 2013
A breathing system is defined as an assembly of components, which delivers gases from the anesthesia machine to the patients′ airways. When the components are arranged as a circle, it is termed a circle system. The flow of exhaled gases is unidirectional
S Parthasarathy
doaj   +3 more sources

Re-Exploration of Flow Rate in Low-Flow, Low-Gradient Aortic Stenosis. [PDF]

open access: yesCatheter Cardiovasc Interv
ABSTRACT Background Transaortic flow rate (TFR, mL/s) is an emerging hemodynamic index in aortic stenosis (AS), offering insights beyond stroke volume index (SVi). We evaluated the hemodynamic determinants and prognostic significance of TFR at rest and peak dobutamine stress in patients with ...
Hungerford S   +5 more
europepmc   +4 more sources

Nanoscale thermoplasmonic welding

open access: yesiScience, 2022
Summary: Establishing direct, close contact between individual nano-objects is crucial to fabricating hierarchical and multifunctional nanostructures. Nanowelding is a technical prerequisite for successfully manufacturing such structures.
Lin Wang, Yijun Feng, Ze Li, Guohua Liu
doaj   +1 more source

Principle, Fabrication and Emerging Applications of Nanobottle Motor

open access: yesEnergies, 2022
Micro/nano-motors play an important role in energy, environment, and biomedicines. As a new type of nano-motors, nanobottles attract great attention due to their distinct advantages of a large cavity, high specific surface area, bionic streamline ...
Qingyuan Liu   +4 more
doaj   +1 more source

Photoactive decontamination and reuse of face masks

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
The corona virus disease 2019 (COVID-19) pandemic has led to global shortages in disposable respirators. Increasing the recycling rate of masks is a direct, low-cost strategy to mitigate COVID-19 transmission.
Dingzhang You   +4 more
doaj   +1 more source

Low‐flow anaesthesia [PDF]

open access: yesAnaesthesia, 1995
Summary Although many anaesthesia machines are equipped with circle rebreathing systems, inhalational anaesthesia remains frequently performed using relatively high fresh‐gas flows. The major advantages of rebreathing techniques can be achieved only if the fresh‐gas flow is reduced to 1 l.min ...
J A, Baum, A R, Aitkenhead
openaire   +2 more sources

Experimental and Numerical Study on the Elimination of Severe Slugging by Riser Outlet Choking

open access: yesEnergies, 2022
Severe slugging is an unstable multiphase flow pattern occurs in a pipeline riser with low gas and liquid flowrates. It is highly undesired in practical operation because of the pressure and mass flow oscillations induced.
Nailiang Li   +3 more
doaj   +1 more source

Estimation of Low Flow Statistics for Sustainable Water Resources Management in South Australia

open access: yesHydrology, 2022
The Magnitude and occurrence of extreme low flow events are needed in setting minimum flows to protect the instream users. As the true distribution is not normally known, the identification of the most appropriate distribution function that describes the
Niranjani P. K. Semananda, Guna A. Hewa
doaj   +1 more source

Exergy Analysis of Two-Stage Organic Rankine Cycle Power Generation System

open access: yesEntropy, 2020
Organic Rankine cycle (ORC) power generation is an effective way to convert medium and low temperature heat into high-grade electricity. In this paper, the subcritical saturated organic Rankine cycle system with a heat source temperature of 100~150 °C is
Guanglin Liu   +3 more
doaj   +1 more source

Streamflow Recession and Dominant Factors in the Nanling Mountain Forest Catchment

open access: yesRedai dili, 2022
Little attention has been paid to dry season streamflow and groundwater recharge dynamics compared to the systematic focus on measuring total annual streamflow changes associated with forest.
Li Zehua   +4 more
doaj   +1 more source

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