Results 11 to 20 of about 229,160 (259)

An Improved System to Measure Leaf Gas Exchange on Adaxial and Abaxial Surfaces

open access: yesBio-Protocol, 2023
Measurement of leaf carbon gain and water loss (gas exchange) in planta is a standard procedure in plant science research for attempting to understand physiological traits related to water use and photosynthesis. Leaves carry out gas exchange through the
Diego Márquez   +3 more
doaj   +1 more source

Water Costs of Gas Exchange by a Speckled Cockroach and a Darkling Beetle

open access: yesInsects, 2020
Respiratory water loss during metabolic gas exchange is an unavoidable cost of living for terrestrial insects. It has been suggested to depend on several factors, such as the mode of gas exchange (convective vs.
Waseem Abbas   +2 more
doaj   +1 more source

Use of argon to measure gas exchange in turbulent mountain streams [PDF]

open access: yesBiogeosciences, 2018
Gas exchange is a parameter needed in stream metabolism and trace gas emissions models. One way to estimate gas exchange is via measuring the decline of added tracer gases such as sulfur hexafluoride (SF6).
R. O. Hall Jr.   +3 more
doaj   +1 more source

Monitoring Gas Exchange [PDF]

open access: yesRespiratory Care, 2020
Critical illness can threaten the adequacy of O2 delivery or CO2 excretion. Monitoring seeks to identify the adequacy of oxygenation and ventilation and to detect deterioration early. Advances in oximetry, capnography, and transcutaneous CO2 monitoring offer new opportunities for more accurate estimation of gas exchange, noninvasive monitoring of ...
openaire   +2 more sources

Improving the energy efficiency of a piston engine based on the use of a numerical method for forming the laws of motion of gas distribution valves [PDF]

open access: yesE3S Web of Conferences, 2021
The increase in the power, economic and environmental performance of modern internal combustion engines is largely due to the improvement of the system that controls the gas exchange processes.
Vasilyev Alexander   +2 more
doaj   +1 more source

Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint

open access: yesSensors, 2016
Pressure sensitive paint (PSP) was used to measure pressure on the blades of a radial compressor with a 51 mm inlet diameter rotating at speeds up to 50 krpm using the so called lifetime method.
Markus Pastuhoff   +2 more
doaj   +1 more source

Quantitative effects of environmental variation on stomatal anatomy and gas exchange in a grass model

open access: yesQuantitative Plant Biology, 2022
Stomata are cellular pores on the leaf epidermis that allow plants to regulate carbon assimilation and water loss. Stomata integrate environmental signals to regulate pore apertures and adapt gas exchange to fluctuating conditions.
Tiago D. G. Nunes   +3 more
doaj   +1 more source

INDIA GAS EXCHANGE TODAY’S REALITY AND PATH AHEAD

open access: yesCopernican Journal of Finance & Accounting, 2021
This research aims to study structure, functioning and operational mechanism of India’s first gas exchange i.e. Indian Gas Exchange (IGX) which is a subsidiary of Indian Energy Exchange (IEX).
C.S. Divyesh Patel, Dr. Naresh K. Patel
doaj   +1 more source

Numerical Simulation of Conjugate Heat Exchange at Gas Flowing in a Well [PDF]

open access: yesMATEC Web of Conferences, 2021
A mathematical model is offered for conjugate heat exchange when gas flows in the section of a vertical well. The motion of the medium is described using a two-dimensional axisymmetric stationary formulation based on boundary-layer equations.
Al’es Michael   +2 more
doaj   +1 more source

Analysis of Vaneless Diffuser Stall Instability in a Centrifugal Compressor

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2017
Numerical simulations based on the large eddy simulation approach were conducted with the aim to explore vaneless diffuser rotating stall instability in a centrifugal compressor.
Elias Sundström   +4 more
doaj   +1 more source

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