Results 61 to 70 of about 7,263,454 (280)

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Perception of tertiary students on the use and importance of campus green spaces at the Kwame Nkrumah University of Science and Technology

open access: yesDiscover Cities
Green spaces are essential to student well-being, cognitive functioning, and socialization, yet their underutilization in African universities merits investigation.
Angela Kaakyire Nsowaa   +3 more
doaj   +1 more source

A comparison of green space indicators for epidemiological research [PDF]

open access: yes, 2011
<p><b>Background</b> The potential for natural environments to be salutogenic has received growing interest from epidemiologists, but there has been no critical examination of the extent to which associations between green space and ...
Astell-Burt, Thomas (R16977)   +9 more
core   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai   +6 more
wiley   +1 more source

Butterfly diversity in an urban area illustrates the significance of green spaces in urban biodiversity conservation [PDF]

open access: yesArthropods, 2023
Rapid urbanisation and population growth are a threat to butterflies found in urban habitats. In this study, we look at the diversity and abundance of butterflies in a small urban green space, our college campus which is surrounded by urban sprawl in ...
Pawan U. Gajbe, Vaishali H. Badiye
doaj  

STUDI PERENCANAAN PENGEMBANGAN UNIVERSITAS HASYIM ASY’ARI SEBAGAI GREEN CAMPUS

open access: yes, 2016
The open green space ideally has functions to support the campus academic community activities that includes students, faculty, and employees. The green open space that has a physical function as an aesthetic, controlling microclimate, and shade will ...
Mayasari, Andhika   +2 more
core   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou   +19 more
wiley   +1 more source

Mapping perceived sentiments in university campuses with varied landscape metrics and climatic conditions

open access: yesFrontiers in Psychology
A sustainable university campus should accommodate students to experience positive emotions, which can be evoked by sustainable landscape with green and blue spaces (GBS).
Qiyuan Yan, Yuxiang Sun
doaj   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

open access: yesAdvanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio   +3 more
wiley   +1 more source

Proximity‐Tuned Magnetic and Transport Anomalies in All‐Epitaxial Fe5−xGeTe2/WSe2 Van der Waals Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
All‐epitaxial and scalable ferromagnetic/non‐magnetic Fe5−xGeTe2/WSe2 van der Waals (vdW) heterostructures exhibiting room‐temperature magnetism and perpendicular magnetic anisotropy (PMA) are realized. The system displays proximity‐tuned magnetic anisotropy, thickness‐dependent unconventional Hall effects, and temperature‐dependent sign reversal of ...
Hua Lv   +15 more
wiley   +1 more source

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