Results 91 to 100 of about 3,128,658 (299)

Long view of a concrete channel carrying water to a turbine.

open access: yes, 2015
The Eastern slopes of the Andes in North Peru are among the least developed parts of the country with the majority of people living in remote villages with little or no access to grid electricity.
Practical Action Peru
core  

Electrolyte Design for Fast‐Charging Lithium‐Based Batteries

open access: yesAdvanced Materials, EarlyView.
A decade of progress in fast‐charging electrolytes for lithium batteries is reviewed. Electrolyte design strategies spanning solvents, salts, additives, and advanced systems, such as localized high‐concentration electrolytes (LHCEs), are summarized. Advanced diagnostic tools for lithium plating and interphase chemistry are discussed, with perspectives ...
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley   +1 more source

Boy carrying a load up a steep mountain path to help with the construction of a concrete dam.

open access: yes, 2015
Project at Bocatoma The Eastern slopes of the Andes in North Peru are among the least developed parts of the country with the majority of people living in remote villages with little or no access to grid electricity.
Practical Action Peru
core  

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

open access: yesAdvanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park   +14 more
wiley   +1 more source

Two electrical engineers installing an electricity meter being watched by a woman holding a child. Logo on the men's overalls reads, "empresa de servicios electricos, Santa Rosa, Tamborapa"

open access: yes, 2015
The Eastern slopes of the Andes in North Peru are among the least developed parts of the country with the majority of people living in remote villages with little or no access to grid electricity.
Practical Action Peru
core  

S‐Nitrosothiols as Thiol‐Protecting Groups for Controlled Thiol‐Maleimide Crosslinking of Homogeneous Soft Hydrogels

open access: yesAdvanced Materials, EarlyView.
Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna   +7 more
wiley   +1 more source

Creativity in the Research Process. Accompanying Aristotle on a scuba diving excursion in the Red Sea

open access: yesNordicum-Mediterraneum, 2013
The paper investigates creativity as an attitude on demand from the researcher in a special situation in the research process. The situation occurs when the collected data does not coinside with the antecipated result. Hans Joas understanding of creative
Åke Nilsén
doaj  

Man assessing the flow of water from a pipe using a blue bucket.

open access: yes, 2015
The Eastern slopes of the Andes in North Peru are among the least developed parts of the country with the majority of people living in remote villages with little or no access to grid electricity.
Practical Action Peru
core  

Home - About - Disclaimer - Privacy