Results 1 to 10 of about 2,050,854 (303)

Computational Fluid Dynamics-Based Modeling of Methane Flows Around Oil and Gas Equipment

Atmosphere
Recent studies estimate that emissions from oil and gas production facilities contribute between 20 and 50% of the total methane (CH4) emitted in the US; therefore, quantifying and reducing these emissions are crucial for achieving climate goals. Methane
Abhinav Anand, Stuart Riddick, Kira B. Shonkwiler, Aashish Upreti, Michael Moy, Elijah Kiplimo, Mercy Mbua, Daniel J. Zimmerle   +7 more
doaj   +1 more source

Synergistic benefits of agrivoltaics in enhancing microclimate, solar panel efficiency, and physiological and biochemical attributes of Hibiscus rosa-sinensis

BMC Plant Biology
The growing need for renewable energy coupled with land-use competition for food production, advocates the value of agrivoltaics (AV) as a double remedy to the conundrum of energy and agriculture.
M. Nasir Khan, Hani Albalawi, Hazem M. El-Hageen, Zahid H. Siddiqui   +3 more
doaj   +1 more source

Estimating Total Methane Emissions from the Denver-Julesburg Basin Using Bottom-Up Approaches

Gases
Methane is a powerful greenhouse gas with a 25 times higher 100-year warming potential than carbon dioxide and is a target for mitigation to achieve climate goals. To control and curb methane emissions, estimates are required from the sources and sectors
Stuart N. Riddick, Mercy Mbua, Abhinav Anand, Elijah Kiplimo, Arthur Santos, Aashish Upreti, Daniel J. Zimmerle   +6 more
doaj   +1 more source

The Application of PET/CT in Predicting and Evaluating the Therapeutic Response in Chemotherapy of Solid Tumor

Journal of Isotopes, 2017
Three aspects of the application of PET/CT in solid tumor chemotherapy were summarized, including the selection of evaluation criteria, the proper time of using PET/CT in the evaluation and the parameters of PET/CT in evaluating the response of ...
positron emission tomography solid tumor chemotherapy predicton of therapeutic response
doaj   +1 more source

Fibroblast activation protein expression in the tumor microenvironment is crucial in survival prediction and differentiation of recurrent gliomas: a head-to-head comparison of 68Ga-FAPI-04 and 18F-FET in PET/CT imaging

EJNMMI Radiopharmacy and Chemistry
Background The precise differentiation of recurrent glioma from treatment-related changes, such as pseudoprogression or radiation necrosis, is essential for treatment planning and remains a significant challenge.
Tao Hua, Qi Huang, Zhirui Zhou, Weiyan Zhou, Jianbo Wen, Fang Xie, Ming Li, Yihui Guan, Dongxiao Zhuang   +8 more
doaj   +1 more source

Survey of available technologies for zero carbon and energy balance houses [PDF]

E3S Web of Conferences
The decarbonization of industry is important to minimize the negative aspects of climate changes. One of the industrial direction is the civil engineering industry, including construction and building flats, houses, and commercial property.
Mičko Kristián, Sol’aková Tatiana
doaj   +1 more source

Comparison of Sub-Ppm Instrument Response Suggests Higher Detection Limits Could Be Used to Quantify Methane Emissions from Oil and Gas Infrastructure

Sensors
Quantifying and controlling fugitive methane emissions from oil and gas facilities remains essential for addressing climate goals, but the costs associated with monitoring millions of production sites remain prohibitively expensive.
Stuart N. Riddick, Mercy Mbua, Ryan Brouwer, Ethan W. Emerson, Abhinav Anand, Elijah Kiplimo, Seunfunmi Ojomu, Jui-Hsiang Lo, Daniel J. Zimmerle   +8 more
doaj   +1 more source

Addressing Low-Cost Methane Sensor Calibration Shortcomings with Machine Learning

Atmosphere
Quantifying methane emissions is essential for meeting near-term climate goals and is typically carried out using methane concentrations measured downwind of the source.
Elijah Kiplimo, Stuart N. Riddick, Mercy Mbua, Aashish Upreti, Abhinav Anand, Daniel J. Zimmerle   +5 more
doaj   +1 more source

Overlooked crisis: cold temperature amplifies particle number emissions from gasoline vehicles

Environment International
This study systematically investigates particle number (PN) emissions from light-duty gasoline vehicles through chassis dynamometer (60 emission test runs spanning −7 °C to 40 °C) combined with mechanistic analysis, revealing a severely underestimated ...
Xihui Tong, Haiguang Zhao, Yongshuai Qu, Jie Yao, Jia Ke, Junchao Zhao, Tianyu Zhai, Xin Li, Xinping Yang, Yunjing Wang, Hang Yin, Yan Ding   +11 more
doaj   +1 more source

Investigation of VOC emission characteristics of light-duty gasoline vehicles and combustion-side formation mechanisms of key VOC species

Atmospheric Environment: X
Volatile organic compounds (VOCs) are important precursors of atmospheric ozone (O 3 ) and secondary organic aerosol (SOA), making their emissions an important concern for urban air quality.
Huayang Zhao, Jia Ke, Han Jiang, Miao Tian, Yunjing Wang, Yan Ding   +5 more
doaj   +1 more source