Results 111 to 120 of about 586,823 (315)

Dual‐Function Interface Engineering for δ‐Phase‐Free Crystallization Toward Efficient and Stable FAPbI3 Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a dual‐function interface engineering strategy using PEACl to suppress the formation of the non‐perovskite δ‐FAPbI3 phase at the critical SnO2 buried interface. This approach enables the direct crystallization of the photoactive α‐phase, yielding highly efficient and stable rigid (25.6%) and flexible perovskite solar cells with ...
Xiao Wu   +7 more
wiley   +1 more source

The depth specific significiance, relative abundance and phylogeography of anaerobic ammonium oxidation (anammox) in marine and estuarine sediments

open access: yes, 2009
PhDThe availability of fixed forms of nitrogen is critical to the regulation of primary production. Until recently, denitrification (the sequential reduction of NO3 -, through NO2 - , to di-nitrogen gas) was recognised as the only significant pathway
Rooks, Christine
core  

Sewage-Borne Ammonium at a River Bank Filtration Site in Central Delhi, India: Simplified Flow and Reactive Transport Modeling to Support Decision-Making about Water Management Strategies

open access: yesGeosciences, 2017
In the Indian metropolis of Delhi, the Yamuna River is highly influenced by sewage water, which has led to elevated ammonium (NH4+) concentrations up to 20 mg/L in the river water during 2012–2013.
Maike Groeschke   +3 more
doaj   +1 more source

Dual‐Inductive and Programmable Switching: A New Paradigm in Ionic Interface‐Controlled Perovskite Memory

open access: yesAdvanced Functional Materials, EarlyView.
A fully programmable, dual‐inductive switchable halide perovskite memristor is demonstrated through precise BDAI2‐mediated interface engineering. This ion‐modulating layer suppresses stochastic filamentary growth, enabling stable, non‐filamentary switching via dynamic barrier modulation.
So‐Yeon Kim, Juan Bisquert
wiley   +1 more source

Substrate specificity of Rhbg: ammonium and methyl ammonium transport

open access: yesAmerican Journal of Physiology-Cell Physiology, 2010
Rhbg is a nonerythroid membrane glycoprotein belonging to the Rh antigen family. In the kidney, Rhbg is expressed at the basolateral membrane of intercalated cells of the distal nephron and is involved in NH4+ transport. We investigated the substrate specificity of Rhbg by comparing transport of NH3/NH4+ with that of methyl amine (hydrochloride) (MA ...
Nazih L, Nakhoul   +5 more
openaire   +3 more sources

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

open access: yesAdvanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi   +6 more
wiley   +1 more source

Composition and structure of ammonium uranates

open access: yes, 1968
The ammonium uranate system was studied by thermal analysis, ion-exchange measurements and infra-red spectroscopy. The results show that in all ammonium uranates, ammonia is combined as NH4+. Infra-red results indicate that the ammonium uranate system is
Stuart, WI, Whateley, TL
core  

The Growth of Giant Clams Juvenil is Influenced by Nutrient Addition [PDF]

open access: yes, 2007
Ekosistem karang merupakan daerah yang memiliki produktivitas tinggi namun kandungan nutrient anroganiknya sangat rendah. Sehingga dapat diduga bahwa kenaikan nutrient anorganik dalam ekosistem ini akan mempengaruhi kehidupan organisme yang ada di ...
Ambariyanto, A
core  

A new chapter in Rh research: Rh proteins are ammonium transporters

open access: yes, 2001
Occasionally, an original research paper has an unusually significant impact on a particular research field. Such a paper, published recently in Nature Genetics, describes the uncovering of the functional role of the Rh protein family - the proteins that
Avent, Neil D.
core   +1 more source

Effects of Aggressive Ammonium Nitrate on Durability Properties of Concrete using Sandstone and Granite Aggregates [PDF]

open access: yes, 2013
The storage of chemical fertilizers in concrete building often leads to durability problems due to chemical attack. The damage of concrete is mostly caused by certain ammonium salts.
Asrah, H.   +3 more
core   +1 more source

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