Results 31 to 40 of about 152,056 (258)

Seasonal trends of the stable nitrogen isotope ratio in particulate nitrogen compounds and their gaseous precursors in Akita, Japan

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2019
Particulate matter (PM) can have adverse effects on human health. Moreover, because the mechanisms of PM formation and behavior in the atmosphere are notably complicated, to reduce PM concentrations effectively and meet environmental standards, source ...
Hiroto Kawashima
doaj   +1 more source

Overlooked Nonagricultural and Wintertime Agricultural NH3 Emissions in Quzhou County, North China Plain Evidence from 15N-Stable Isotopes

open access: yes, 2022
Ammonia (NH3) plays a critical role in atmospheric chemistry and can exacerbate haze formation. Agricultural emissions have been known as a primary source of global atmospheric NH3.
Cheng, M.   +12 more
core   +1 more source

Characteristics of R134a/R410A Cascade Heat Pump and Optimization [PDF]

open access: yes, 2012
Single stage air source heat pump has been widely used around the world. However, it has some drawback, for example, deteriorated heating capacity and COP in cold ambient temperature.
Kim, Min Soo   +2 more
core   +1 more source

Fe foam supported FeVO4 nanoparticles for electrochemical nitrogen fixation at ambient conditions

open access: yesNano Research Energy
As global energy demand continues to rise with fossil fuels dwindling at a faster rate, posing energy and environmental concerns, there is a growing interest in exploring alternative, green, and renewable energy sources.
Abdulmalik Aminu   +6 more
doaj   +1 more source

Inverse modeling of NH3 sources using CrIS remote sensing measurements

open access: yesEnvironmental Research Letters, 2020
Spatiotemporal uncertainty in $\mathrm{NH_{3}}$ emissions in the US hinders prediction of environmental effects of atmospheric $\mathrm{NH_3}$ . We conducted 4D-Var inversions using CrIS remote-sensing observations and GEOS-Chem to estimate monthly ...
Hansen Cao   +11 more
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Crystal structure of [UO2(NH3)5]NO3·NH3

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
Pentaammine dioxide uranium(V) nitrate ammonia (1/1), [UO2(NH3)5]NO3·NH3, was obtained in the form of yellow crystals from the reaction of caesium uranyl nitrate, Cs[UO2(NO3)3], and uranium tetrafluoride, UF4, in dry liquid ammonia.
Patrick Woidy, Florian Kraus
doaj   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Net zero motorcycle fueled with ethanol-ammonia flexible fuel

open access: yesTạp chí Khoa học và Công nghệ
This paper presents the results of simulation and experimental research on converting an electronic fuel-injected Honda RSX motorcycle into an Ethanol-NH3 dual-fuel motorcycle.
Bui Van Ga   +3 more
doaj   +1 more source

L'azote ammoniacal, un toxique potentiel en élevage de poissons : le cas du turbot

open access: yesKnowledge and Management of Aquatic Ecosystems, 1998
L'azote ammoniacal est un toxique potentiel en élevage de poissons ayant des effets plus ou moins sévères selon la concentration ambiante et la durée d'exposition.
PERSON-LE RUYET J., BOEUF G.
doaj   +1 more source

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