Results 181 to 190 of about 81,995 (311)

A Bayesian network approach to explaining time series with changing structure [PDF]

open access: yes, 2004
Many examples exist of multivariate time series where dependencies between variables change over time. If these changing dependencies are not taken into account, any model that is learnt from the data will average over the different dependency structures.
Liu, X, Tucker, A
core  

Assembly and Functionality of 2D Protein Arrays

open access: yesAdvanced Science, EarlyView.
2D protein arrays‐based outstanding properties, including their remarkable structural stability, exceptional physiochemical properties, and tunable electronic and mechanical attributes, have become a key functional platform for developing advanced functional materials.
Mingming Du   +6 more
wiley   +1 more source

Study of the Components of Delivered Fuel Costs in Alaska: January 2009 Update [PDF]

open access: yes, 2009
This is an update of our previous report titled “Components of Delivered Fuel Prices in Alaska.”1 We provide more recent data on actual fuel prices in ten rural communities that we first examined in fall 2007.
Colt, Steve   +4 more
core  

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

open access: yesAdvanced Science, EarlyView.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan   +6 more
wiley   +1 more source

Aspects of Expanded Bed Nitrification Including Treatment of Oil Refinery Wastewaters [PDF]

open access: yes, 2009
The original aim of this study was to investigate the nitrification of oil refinery wastewater using the novel expanded bed technology. Nitrification is the oxidation of ammonia to nitrate by the nitrifying bacteria and is an important part of ...
Akhidime, Iduma Devine
core  

Nanoconfinement Engineering of Covalent Organic Frameworks in Polyamide Membranes for High‐Perselectivity Li+/Mg2+ Separation

open access: yesAdvanced Science, EarlyView.
A nanoconfinement strategy using porous COF layers is developed to regulate interfacial polymerization and prepare thin, uniform PA membranes. The COF layer provides confined spaces and abundant interaction sites, effectively controlling monomer distribution and reaction kinetics.
Shuzhen Zhao   +9 more
wiley   +1 more source

Treatment Process for Removal of Naphthenic Acid from Oil Refinery Wastewater [PDF]

open access: yes, 2016
This thesis covers the sources, chronic fish toxicity and treatment of naphthenic acid in an oil refinery wastwewater ...
Flatley, Martin W
core   +1 more source

PUPAE: Intuitive and Actionable Explanations for Time Series Anomalies [PDF]

open access: yesSIAM SDM 2024
In recent years there has been significant progress in time series anomaly detection. However, after detecting an (perhaps tentative) anomaly, can we explain it? Such explanations would be useful to triage anomalies. For example, in an oil refinery, should we respond to an anomaly by dispatching a hydraulic engineer, or an intern to replace the battery
arxiv  

Tunable Transfer‐Hydrodeoxygenated Upgrading of Lignin‐Derived Propylphenols to Versatile Value‐Added Alkane‐Based Chemicals

open access: yesAdvanced Science, EarlyView.
A gaseous hydrogen‐free catalytic system employing Raney Ni and HZSM‐5 with isopropanol upgrades lignin‐derived phenols into value‐added alkanes. By tuning catalyst ratios and temperature, selective pathways yield versatile products including propylbenzene (62%), 4‐propylcyclohexanol (92.2%), propylcyclohexene (93.3%), and propylcyclohexane (93.2 ...
Yanyan Yu   +5 more
wiley   +1 more source

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