Results 61 to 70 of about 5,354,525 (295)

Spin‐Dependent Generation of Surface‐Bound Radicals Toward Selective and Long‐Lasting Water Purification

open access: yesAdvanced Functional Materials, EarlyView.
This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang   +7 more
wiley   +1 more source

The role of multiple sense of community as a mediator in the relationship between urban identity and citizen participation

open access: yesJurnal Psikologi Ulayat: Indonesian Journal of Indigenous Psychology
In the urban context, place identity has been found to have an important role in increasing citizen participation. Although some studies have shown a positive relationship, some other studies have shown weak and contradictory relationship between ...
Kamalia, Dicky C. Pelupessy
doaj   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

open access: yesAdvanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian   +8 more
wiley   +1 more source

A Generalized Diagonal Wythoff Nim

open access: yes, 2010
In this paper we study a family of 2-pile Take Away games, that we denote by Generalized Diagonal Wythoff Nim (GDWN). The story begins with 2-pile Nim whose sets of options and $P$-positions are $\{\{0,t\}\mid t\in \N\}$ and $\{(t,t)\mid t\in \M ...
Larsson, Urban
core   +1 more source

Evidence combination for multi-point query learning in content-based image retrieval [PDF]

open access: yes, 2004
In multipoint query learning a number of query representatives are selected based on the positive feedback samples. The similarity score to a multipoint query is obtained from merging the individual scores.
Jose, J.M., Urban, J.
core   +1 more source

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

open access: yesAdvanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang   +15 more
wiley   +1 more source

IoT-Enabled Adaptive Traffic Management: A Multiagent Framework for Urban Mobility Optimisation

open access: yesSensors
This study evaluates the potential of IoT-enabled adaptive traffic management systems for mitigating urban congestion, enhancing mobility, and reducing environmental impacts in densely populated cities. Using London as a case study, the research develops
Ibrahim Mutambik
doaj   +1 more source

COOPERATION OF ACTORS IN MAINTENANCE OF URBAN GREEN SYSTEMS IN DAR ES SALAAM CITY: THE CASE OF MBWENI, KIJICHI AND BUYUNI

open access: yesAfrican Journal on Land Policy and Geospatial Sciences, 2022
Green systems play a significant role in the resilience of cities. However, the rate of disappearance is increasing in the global south and affects the resilience of cities.
Helene Stephene Francis   +2 more
doaj   +1 more source

Diurnal-, Seasonal- and Site-Dependent Variability in Ground-level Total Non-Methane Hydrocarbon in Nagpur City of Central India

open access: yesAsian Journal of Atmospheric Environment, 2020
Temporal & spatial variations in ground-level total non-methane hydrocarbon (TNMHC) were studied in Nagpur urban agglomeration (UA) for a year over three seasons viz.
Deepanjan Majumdar   +1 more
doaj   +1 more source

The $\star$-operator and Invariant Subtraction Games

open access: yes, 2010
We study 2-player impartial games, so called \emph{invariant subtraction games}, of the type, given a set of allowed moves the players take turn in moving one single piece on a large Chess board towards the position $\boldsymbol 0$.
Larsson, Urban
core  

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