Results 131 to 140 of about 8,678 (302)

Defect engineering for highly efficient and stable perovskite top cells for Si tandems

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Defect passivation in wide‐bandgap perovskites is essential for enabling high‐efficiency and stable perovskite/Si tandem solar cells. Bulk, surface, and buried‐interface passivation strategies focus on suppressing nonradiative recombination, ion migration, and halide segregation, thereby clarifying critical design principles for next‐generation tandem ...
Ju Yeong Hong   +2 more
wiley   +1 more source

Stability of Wafer-Scale Thin Films of Vertically Aligned Hexagonal BN Nanosheets Exposed to High-Energy Ions and Reactive Atomic Oxygen. [PDF]

open access: yesNanomaterials (Basel), 2022
Huang S   +9 more
europepmc   +1 more source

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

open access: yesBiological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios   +2 more
wiley   +1 more source

Advanced propulsion for LEO and GEO platforms [PDF]

open access: yes
Mission requirements and mass savings applicable to specific low earth orbit and geostationary earth orbit platforms using three highly developed propulsion systems are described.
Pidgeon, David J., Sovey, James S.
core   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

open access: yesBiological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen   +15 more
wiley   +1 more source

On-a-chip microdischarge thruster arrays inspired by photonic device technology for plasma television

open access: yes, 2009
This study shows that the practical scaling of a hollow cathode thruster device to MEMS level should be possible albeit with significant divergence from traditional design.
Cranny, Andrew   +5 more
core  

Humans are not unique: difficult birth is common in placental mammals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

アノードレイヤ型ホールスラスタの作動特性 [PDF]

open access: yes
Thrust performance and stable operation conditions of an anode layer type Hall thruster was investigated using a 1.5kW class anode layer type Hall thruster.
Arakawa, Yoshihiro   +7 more
core  

Impact Measuring in Sustainable Ventures: A Process Perspective

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Impact measurement is crucial for sustainable ventures to quantify their contribution to sustainable development. Although research has highly focused on impact measurement as a static activity, we conduct a qualitative study to explore how impact measuring as a process unfolds over time.
Jan Moellmann   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy