Results 61 to 70 of about 317,752 (229)

Enhanced ammonia decomposition using a Pd-Ag membrane reactor for high-purity hydrogen production

open access: yesFuel Processing Technology
In this study, a Pd-Ag membrane reactor (MR) integrated with a lab-synthesized ruthenium catalyst supported on La2Ce2O7 was used for the efficient production and recovery of highly-pure hydrogen from ammonia decomposition.
Erasmo Salvatore Napolitano   +5 more
doaj   +1 more source

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

open access: yesAdvanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song   +16 more
wiley   +1 more source

A Novel Tensor Ring Sparsity Measurement for Image Completion

open access: yesEntropy
As a promising data analysis technique, sparse modeling has gained widespread traction in the field of image processing, particularly for image recovery.
Junhua Zeng   +4 more
doaj   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche   +8 more
wiley   +1 more source

Quantum Entanglement: Separability, Measure, Fidelity of Teleportation and Distillation

open access: yes, 2010
Quantum entanglement plays crucial roles in quantum information processing. Quantum entangled states have become the key ingredient in the rapidly expanding field of quantum information science.
Fei, Shao-Ming   +2 more
core   +2 more sources

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

open access: yesAdvanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje   +7 more
wiley   +1 more source

Decoupling of O3‐Layered Cathode Stability from System‐Driven Thermal Runaway in Sodium‐Ion Batteries

open access: yesChemElectroChem
Although next‐generation sodium‐ion batteries (SIBs) possess more stable cathode materials than lithium‐ion batteries (LIBs), thermal runaway (TR) remains a critical barrier to SIB applications. To resolve this safety paradox, atomic‐scale investigations
Yan Li, Hao Jiang, LiLi Huang
doaj   +1 more source

Clustering and Latent Semantic Indexing Aspects of the Nonnegative Matrix Factorization [PDF]

open access: yes, 2011
This paper provides a theoretical support for clustering aspect of the nonnegative matrix factorization (NMF). By utilizing the Karush-Kuhn-Tucker optimality conditions, we show that NMF objective is equivalent to graph clustering objective, so ...
Mirzal, Andri
core  

On quantum error-correction by classical feedback in discrete time

open access: yes, 2004
We consider the problem of correcting the errors incurred from sending quantum information through a noisy quantum environment by using classical information obtained from a measurement on the environment.
Ahn C.   +12 more
core   +1 more source

Food‐Based Edible Wireless Sensing Device with Isotropic Electromagnetic Response for Gastrointestinal Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A sensor is fabricated that reflects electromagnetic waves wirelessly using only edible materials. The substrate is made of edible materials such as sugar and starch, and the electrodes are made of gold. This sensor has isotropic electromagnetic wave characteristics in response to rotation.
Ryosuke Matsuda   +5 more
wiley   +1 more source

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