Results 61 to 70 of about 12,003 (311)

Analyzing individual rent price ratios in eastern German agricultural land markets: A GAMLSS approach

open access: yesAgribusiness, EarlyView.
Abstract This study explores the rent price ratio in agricultural land markets, crucial for evaluating market efficiency, policy needs, and farmer decision‐making. Traditionally, the analyses faced challenges due to the absence of concurrent sale and rent data for the same land, potentially leading to biased results.
Marius Michels   +4 more
wiley   +1 more source

Analysis of Composition Differences between Huazhou Citri Grandis Exocarpium and Guangxi Citri Grandis Exocarpium Based on Portable GC-MS and HS/SPME-GC×GC-TOF MS

open access: yesZhipu Xuebao
The volatile components of Citri Grandis Exocarpium from Huazhou (CGEH) and Guangxi (CGEG) were analyzed by portable gas chromatography-mass spectrometry (GC-MS) and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-
Kai-xuan LI   +6 more
doaj   +1 more source

Source apportionment of atmospheric aerosols using radiocarbon [PDF]

open access: yes, 2017
Radiocarbon (14C) is a powerful tool in atmospheric sciences for the distinction of emissions from modern sources and fossil-fuel usage, as the former shows the contemporary 14C level, whereas this radionuclide is extinct in the latter (Szidat, 2009 ...
Szidat, Sönke
core  

Source apportionment and risk assessment of PAHs in Brisbane River sediment, Australia

open access: yes, 2017
Sediment samples collected over a 3-year period from Brisbane River, Australia, were analysed for fifteen (15) polycyclic aromatic hydrocarbons (PAHs).
Duodu, Godfred Odame   +5 more
core   +1 more source

PM SOURCE APPORTIONMENT ANALYSIS IN THE VENETIAN AREA

open access: yesHrvatski meteorološki časopis, 2011
A multi-scenario approach is applied on a CALMET-CAMx System to investigate particular matter (PM10) source apportionment on the wide urban area of Venice and its mainland. The baseline scenarios is verified against measurements of PM10 and chemical speciation of the filters.
Pillon, Silvia   +3 more
openaire   +3 more sources

Challenges and enablers in fluidization technology

open access: yesAIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Understanding the catalytic role of oxalic acid in SO3 hydration to form H2SO4 in the atmosphere [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
The hydration of SO3 plays an important role in atmospheric sulfuric acid formation. Some atmospheric species can be involved in and facilitate the reaction.
G. Lv, X. Sun, C. Zhang, M. Li, M. Li
doaj   +1 more source

Aerosol source apportionment by Principal Component Analysis.

open access: yes, 2013
Aerosol source apportionment by Principal Component Analysis.
Anandamay Adak (316887)   +7 more
core   +1 more source

Source apportionment of aerosols by 14C measurements in different carbonaceous particle fractions [PDF]

open access: yes, 2004
From the 18th International Radiocarbon Conference held in Wellington, New Zealand, September 1-5, 2003.Radiocarbon enables a distinction between contemporary and fossil carbon, which can be used for the apportionment of biogenic and anthropogenic ...
Gäggeler, H. W.   +16 more
core   +1 more source

Resolving passive heat transfer and phase‐change heat in cryogenic CO2 deposition (Desublimation) from CO2/N2 mixtures

open access: yesAIChE Journal, EarlyView.
Abstract In cryogenic CO2 desublimation systems where phase change dominates both heat transfer and separation, conventional lumped thermal‐resistance treatments embed interfacial latent heat into an overall heat‐transfer coefficient, obscuring how phase‐change heat is partitioned between the gas phase and the coolant and limiting diagnostic insight ...
Shengwen Xiao   +2 more
wiley   +1 more source

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