Results 161 to 170 of about 1,496,594 (336)
The status of household food security targets in South Africa [PDF]
This article investigates the conceptual and methodological challenges to develop a set of baseline indicators for South African food security targets. A food security target is a well-defined and measurable goal to reduce the numbers of people who lack ...
Jacobs, Peter T.
core +1 more source
Advanced Functional Materials, EarlyView.In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu +14 more
wiley +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
America’s Energy Security Options [PDF]
As US gasoline prices approached $4 a gallon in spring 2011, energy security moved to the forefront of the American political debate. Politicians have been quick to offer silver bullet solutions to lower gas prices and make America more energy secure ...
Shashank Mohan, Trevor Houser
core
Advanced Functional Materials, EarlyView.An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu +14 more
wiley +1 more source
Business orientation and the food security status of small scale producers in the Venda region, South Africa [PDF]
Questions addressed in this paper are: How to determine the food status of rural households; and does an agribusiness orientation enhance the food security status of farm families.
D'Haese, Luc +3 more
core +1 more source
Advanced Functional Materials, EarlyView.This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee +17 more
wiley +1 more source
Energy Security Risks and Risks Mitigation: an Overview [PDF]
Central to the goals of competitiveness and sustainable development is the issue of energy. Is there enough? Where will it come from? What will it costs? Is its production and use environmentally sustainable?
George Kowalski, Sead Vilogorac
core
Mechanotransducing Organic Electrochemical Diode for Crosstalk‐Inhibited Artificial Skin
Advanced Functional Materials, EarlyView.An innovative approach is presented to a stretchable mechanotransducing diode that unifies rectification and tactile‐sensing functionality. This approach enables to fabricate the diode that maintains a large rectification ratio (5 × 102) at a high operational frequency (100 Hz).
Taeyeong Kim +7 more
wiley +1 more source