Results 21 to 30 of about 31,643 (255)

A Wavelength Modulation Spectroscopy-Based Methane Flux Sensor for Quantification of Venting Sources at Oil and Gas Sites

Sensors, 2022
An optical sensor employing tunable diode laser absorption spectroscopy with wavelength modulation and 2f harmonic detection was designed, prototyped, and tested for applications in quantifying methane emissions from vent sources in the oil and gas ...
Simon A. Festa-Bianchet, Scott P. Seymour, David R. Tyner, Matthew R. Johnson   +3 more
doaj   +1 more source

A case study in competing methane regulations: Will Canada’s and Alberta’s contrasting regulations achieve equivalent reductions?

Elementa: Science of the Anthropocene, 2020
The Canadian federal government and the Province of Alberta (the dominant oil and gas producing province) have released competing methane regulations for the oil and gas sector intended to take effect between January 2020–2023. Provisions in Canadian law
Matthew R. Johnson, David R. Tyner
doaj   +1 more source

Simulation of an Injection Process Using a CAE Tool: Assessment of Operational Conditions and Mold Design on the Process Efficiency [PDF]

Materials Research, 2019
The present work developed an experimental and simulation study to evaluate the influence of some operational conditions and mold design on the efficiency of an injection process used to produce polystyrene parts. The software SolidWorks Plastic was used
Diego Alves de Miranda, André Lourenço Nogueira   +1 more
doaj   +1 more source

Gravity Venting of the Left Ventricle: A Useful Adjunct

, 2023
Venting of the left ventricle helps in decompressing the heart and improves visibility during surgery. Venting may be performed by direct cannulation of the left ventricle or the pulmonary veins.
Carlos M.G. Duran, Subramanian Chellappan, Ganga Prabhakar, Naresch Kumar   +3 more
core   +1 more source

Functional near‐infrared spectroscopy approach to the emotional regulation effect of drawing: Venting versus distraction

Brain and Behavior, 2023
Background Drawing can regulate emotions through venting or distraction. Distraction is more helpful for short‐term emotion recovery; however, the sustainability of this difference is yet to be clarified.
Xinlei Zhang, Wenhua Yan, Cheng Xu, Aiping Yang, Zihan Shen, Xinwei Guo   +5 more
doaj   +1 more source

Saskatchewan’s oil and gas methane: how have underestimated emissions in Canada impacted progress toward 2025 climate goals?

Environmental Research Letters, 2023
Canada has set ambitious methane emission reduction targets for its oil and gas industry, and recently, the province of Saskatchewan—Canada’s second largest oil producing region—announced it has already exceeded the first of these targets. Using detailed
Scott P Seymour, Hugh Z Li, Katlyn MacKay, Mary Kang, Donglai Xie   +4 more
doaj   +1 more source

Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief

You-qi chuyun
bjective Carbon capture, utilization and storage (CCUS) is essential for achieving carbon neutrality, in which the safety and efficiency of CO2 transmission plays a vital role.
Bing YAN, Bohui SHI, Junwen CHEN, Xiaoyong TANG, Linfeng ZAN, Yanjing WANG, Yupei LI, Jing GONG   +7 more
doaj   +1 more source

Design of ZGZS1000 water sealing fire resistance and explosion venting device

Meikuang Anquan, 2022
This paper introduces the working principle of water sealing fire resistance and explosion venting device to ensure the safety of low concentration gas transportation through water sealing fire resistance and over-pressure automatic explosion venting ...
HUANG Kehai
doaj   +1 more source

Experimental study on the influence of venting on temperature and pressure changes in impurity-containing supercritical CO2 pipeline

You-qi chuyun
Objective Impurities are inevitably present in CO2 transmitted through pipelines, and these substances have significant impacts on the venting process of supercritical CO2 pipelines, including temperature reductions, pressure drops, and phase changes of ...
Qihui HU, Teng YANG, Qing MIAO, Liesibieke·TALAFUBIEKE, Zhaolan LI, Zhenning FAN   +5 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source