Results 41 to 50 of about 59,015 (252)

Using CFCs and SF6 for groundwater dating : a SWOT analysis [PDF]

, 2010
A knowledge of the residence time of groundwater is of importance in understanding key issues in the evolution of water quality. Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) offer a convenient way of dating waters up to ~60 yrs old.
Darling, W.G., Gooddy, D.C., MacDonald, A.M., Morris, B.L.   +3 more
core  

Singular Coexistence-curve Diameters: Experiments and Simulations

, 2005
Precise calculations of the coexistence-curve diameters of a hard-core square-we ll (HCSW) fluid and the restricted primitive model (RPM) electrolyte exhibit mar ked deviations from rectilinear behavior.
Anisimov, Aqua, Bekiranov, Felderhof, Fisher, Fisher, Goldstein, Goldstein, Gopal, Green, Guida, Hemmer, Hensel, Jüngst, Kim, Kim, Kim, Kim, Kim, Kim, Kozhevnikov, Levelt Sengers, Ley-Koo, Luijten, Mermin, Mermin, Michael E. Fisher, Moldover, Närger, Orkoulas, Orkoulas, Pestak, Singh, Stone, Weiner, Widom, Young C. Kim   +36 more
core   +1 more source

Hybrid Heterostructures of Nanostructured Si Membrane and MoS2 for Self‐Powered Photodetectors

Advanced Electronic Materials, EarlyView.
A scalable MoS2/Si nanomesh vertical heterostructure is developed for self‐powered photodetection. The nanostructured junction enhances conductivity, expands the active heterointerface, and enables a transition from photovoltaic to avalanche‐assisted operation, delivering markedly improved photoresponse over planar counterparts.
Jingying Liu, Zhichen Wan, Haoran Mu, Siqi Deng, Mohammad M. Hossain, Udo Bach, Shenghuang Lin, Qingdong Ou, Sudha Mokkapati   +8 more
wiley   +1 more source

Data‐Driven Review and Machine Learning Prediction of Diamond Vacancy Center Synthesis

Advanced Intelligent Systems, EarlyView.
A machine learning framework is applied to photoluminescence spectra to extract linewidths and uncover how NV, SiV, GeV, and SnV centers evolve with growth and processing conditions. Unified normalization and k‐fold validation reveal cross‐method trends and enable rapid prediction of defect size and fabrication parameters, offering a data‐driven route ...
Zhi Jiang, Marco Peres, Carlo Bradac, Gil Gonçalves   +3 more
wiley   +1 more source

Capacitively Coupled SF6, SF6/O2, SF6/CH4 Plasma Etchingof Acrylic at Low Vacuum Pressure

Korean Journal of Materials Research, 2009
This study investigated dry etching of acrylic in capacitively coupled SF , SF /O and SF /CH plasma under a low vacuum pressure. The process pressure was 100 mTorr and the total gas flow rate was fixed at 10 sccm. The process variables were the RIE chuck power and the plasma gas composition. The RIE chuck power varied in the range of 25~150 W.
openaire   +2 more sources

Sulphur hexafluoride (SF6) tracer technique

Methods in cattle physiology and behaviour – Recommendations from the SmartCow consortium., 2020
A further method for measuring methane production is the sulphur hexafluoride (SF₆) tracer technique, which requires inserting a known quantity of the inert tracer into the rumen. The use of the SF₆ tracer technique to quantify enteric CH4 emissions from grazing ruminants was pioneered by Zimmerman and Johnson.
Rochette, Yvanne, Jonker, Arjan, Moate, Peter, Vanlierde, Amélie, Martin, Cécile   +4 more
openaire   +3 more sources

Embedding Chemistry and Pharmacy Into Sustainability

Angewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

Characterization of Shigella flexneri serotype 6 strains from geographically diverse low- and middle-income countries

mBio
Shigella flexneri serotype 6 (Sf6) is one of the most common serotypes recovered from surveillance studies of moderate to severe diarrhea. Despite the clinical significance of Sf6, this serotype is understudied.
Caitlin E. Gabor, Charlotte E. Chong, Jose M. Lemme-Dumit, Tracy H. Hazen, Kate S. Baker, Karen L. Kotloff, Irene N. Kasumba, Sharon M. Tennant, Henry Badji, M. Jahangir Hossain, Richard Omore, Benjamin Ochieng, Alex O. Awuor, Billy Ogwel, Jane Juma, Eileen M. Barry, David A. Rasko   +16 more
doaj   +1 more source

Dielectric breakdown properties of CF3I-N2 mixtures containing a small amount of SF6

AIP Advances, 2019
CF3I-N2 mixtures have garnered much attention as potential SF6-substitutes due to their excellent dielectric strengths, and the dielectric strength of SF6-N2 mixtures has a good synergy effect. This paper attempts to propose an approach of adding a small
Hu Zhao, Yunkun Deng, Zengyao Tian
doaj   +1 more source

Circuit breaker prognostics using SF6 data [PDF]

, 2011
Control decisions within future energy networks may take account of the health and condition of network assets, pushing condition monitoring within the smart grid remit.
Catterson, Victoria, Johnstone, Carl, Mcarthur, Stephen, Rudd, Susan   +3 more
core   +1 more source