Results 81 to 90 of about 391,958 (290)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Empirical analysis of production risk and technical efficiency of sesame farmers in northwest Ethiopia

open access: yesCogent Food & Agriculture
Agricultural production is very risky, which can lead to significant shifts in income for individual farmers. De-risking input allocation due to production risk can change the level of technical efficiency.
Mohammed Adem
doaj   +1 more source

Allocative inefficiency and school competition [PDF]

open access: yes
A substantial literature indicates that the public school system in the United States is inefficient. Some have posited that this inefficiency arises from a lack of competition in the education market.
Kathy Hayes   +3 more
core  

Multilayer Soft Photonic Arrays Inspired by Cephalopod Skin for High‐Density, Independent, and Multimodal Actuation

open access: yesAdvanced Functional Materials, EarlyView.
A vertically stacked, DEA‐driven photonic array inspired by cephalopod skin, featuring highly crystalline colloidal crystal gels with vivid color, low FWHM and scalability is presented. The multilayer design removes lateral pixel interference, achieving near‐100% fill factor with fully independent RGB actuation.
Maga Kim   +11 more
wiley   +1 more source

Technical Efficiency Of Smallholders Of Oil Palm Cultivation In Ogan Komering Ilir

open access: yesAgro Ekonomi, 2019
This study aims to (1) identify the factors affecting the production of oil palm cultivation business by the smallholders and (2) identify the technical level as well as factors influencing business inefficiency of oil palm cultivation by the ...
Armina Fariani   +2 more
doaj   +1 more source

Efficiency in European railways: Not as inefficient as one might think [PDF]

open access: yes
The paper studies technical inefficiency in the railway systems of ten countries of the European Union. A new approach is used which permits the disaggregation of inefficiency by factor of production to result in estimates of input-specific technical ...
Dimitris Christopoulos   +2 more
core  

Structure–Transport–Ion Retention Coupling for Enhanced Nonvolatile Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Nitrogen incorporation into the conjugated backbone of donor–acceptor polymers enables efficient charge transfer and deep ion embedding in organic electrochemical synaptic transistors (OESTs). This molecular‐level design enhances non‐volatile synaptic properties, providing a new strategy for developing high‐performance and reliable neuromorphic devices.
Donghwa Lee   +5 more
wiley   +1 more source

Energy Conversion Efficiency Enhancement of a Normal Wind Turbine Combining a Fuzzy Control Method and Mechanical Centrifugal Modules

open access: yesIEEE Access
Currently, low-wind speed shutdown and medium-wind speed inefficiency are the main problems plaguing wind turbines. This paper presents a wind turbine with a real-time adaptive regulation (RAR) system. It includes a sensor subsystem, a variable structure
Xunwei Tong   +4 more
doaj   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

open access: yesAdvanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park   +3 more
wiley   +1 more source

Estimating Production Risk and Inefficiency Simultaneously: An Application to Cotton Cropping Systems

open access: yesJournal of Agricultural and Resource Economics, 2003
By using a stochastic frontier framework, the mutual effect of input use on production risk and inefficiency is investigated. Disentangling this mutual effect proves important for empirical reasons, at least when applied to west Tennessee cotton systems ...
Edward C. Jaenicke   +2 more
doaj   +1 more source

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