Results 71 to 80 of about 1,071,156 (247)

Refexive Planning for Later Life: A Conceptual Model and Evidence from Canada [PDF]

open access: yes
In this paper, we present a conceptual model to describe an individual's preparations for later life. Situated in the life course perspective, this model invites a comprehensive and systematic study of later life planning.
Amiram Gafni   +5 more
core  

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

open access: yesAdvanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram   +2 more
wiley   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye   +6 more
wiley   +1 more source

“Membership Retention in the Fitness Industry: A Qualitative Study and the Development of a Predictive model" [PDF]

open access: yes
The concern over poor membership retention rates in the fitness industry is increasing, yet it has attracted little empirical research. So far, membership retention has mostly been indirectly and narrowly addressed, whereby research has either measured ...
Francis-Smythe, Jan, Watts, Helen
core  

Breaking the Capacity Limit for WO3 Anode‐Based Li‐Ion Batteries Using Photo‐Assisted Charging

open access: yesAdvanced Functional Materials, EarlyView.
This image illustrates a photo‐assisted rechargeable lithium‐ion battery. (a) shows the battery structure, where light enhances electron‐hole generation in the anode, boosting ion flow. (b) compares discharging performance, revealing over 60% higher capacity under light compared to dark conditions, showcasing the benefit of light‐assisted energy ...
Rabia Khatoon   +7 more
wiley   +1 more source

Mg Substitution Improves the Surface Stability of High‐Voltage Spinel Cathodes under Accelerated Aging Conditions

open access: yesAdvanced Functional Materials, EarlyView.
LiNi0.5Mn1.5O4 lithium‐ion battery cathodes exhibit poor cycling stability due to surface reconstruction and electrolyte degradation at high voltage. This work demonstrates that partial Ni substitution with Mg prevents surface reconstruction and creates a corrosion‐resistant surface layer during the early stages of cycling, hence reducing electrolyte ...
Beth E. Murdock   +8 more
wiley   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy