Results 101 to 110 of about 1,853,159 (330)

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

open access: yesAdvanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng   +8 more
wiley   +1 more source

What is Social Capital And Why Does It Matter? [PDF]

open access: yes, 2001
Sparked by the work of Harvard political scientist Robert Putnam, a team of researchers at Harvard University recently conducted a national survey on "social capital," that is, social resources for building healthy societies.
John C. Thomas
core  

FDA-cleared artificial intelligence and machine learning-based medical devices and their 510(k) predicate networks.

open access: yesThe Lancet Digital Health, 2023
Urs J. Muehlematter   +2 more
semanticscholar   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

open access: yesAdvanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi   +7 more
wiley   +1 more source

State Abstinence Education Programs and Teen Fertility in the U.S. [PDF]

open access: yes
Title V, section 510 of the Social Security Act, passed in 1996 and implemented in 1998, appropriates funding to states for the purpose of educating minors on the benefits of abstinence before marriage.
Colin Cannonier
core  

Проект парового котла типа Е паропроизводительностью 210 т/ч для замены выработавших ресурс котлов Челябинской ТЭЦ-1 [PDF]

open access: yes, 2016
Выпускная квалификационная работа 158 страниц, 4 рисунка, 7 источников, 15 таблиц, 3 приложения. Объект проектирования: котельная установка с паровым котлом Е-210-11,0-510 БТ.
Астафьев, Александр Владимирович
core  

High-Pressure Amorphous Nitrogen

open access: yes, 2001
The phase diagram and stability limits of diatomic solid nitrogen have been explored in a wide pressure--temperature range by several optical spectroscopic techniques.
A. F. Goncharov   +30 more
core   +1 more source

Thermally Activated Delayed Fluorescence in Phase‐Separated Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A supramolecular, phase‐separation driven strategy yields charge transfer (CT) complexes from alternating electron‐deficient pyromellitic diimide and electron‐rich 4,5‐dibromoveratrole. The resulting CT complexes self‐assemble into lamellar nanosheets with nanometer‐sized domains that exhibit thermally activated delayed fluorescence (TADF) at room ...
Bart W.L. van den Bersselaar   +8 more
wiley   +1 more source

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