Results 71 to 80 of about 190,921 (304)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Improving the estimation of grazing pressure in tropical rangelands

Environmental Research Letters
Livestock grazing is a key land use globally, with major environmental impacts, yet the spatial footprint of grazing remains elusive, particularly at broad scales.
Pedro David Fernández, Matthias Baumann, Lisandro Blanco, Francisco Murray, José Nasca, Johannes Piipponen, Macarena Tasquer, Tobias Kuemmerle   +7 more
doaj   +1 more source

A Scalable Perovskite Platform With Multi‐State Photoresponsivity for In‐Sensor Saliency Detection

Advanced Materials, EarlyView.
A scalable in‐sensor computing platform (32 × 32 array) with ultra‐low variability is developed by incorporating ferroelectric copolymers into halide perovskite thin films. These devices achieve 1000 programmable photoresponsivity states and high thermal reliability.
Xuechao Xing, Anubhab Tripathi, Si En Ng, Natalia Yantara, Yue Gong, Qinjie Wu, Yeow Boon Tay, Wen Siang Lew, Yang Chai, Arindam Basu, Nripan Mathews   +10 more
wiley   +1 more source

Effectiveness of exclosures to control soil erosion and local communities perception on soil erosion [PDF]

, 2009
The study investigated how effective exclosures are in the fight against soil erosion and how they are perceived as a means to control soil erosion by the local community (farmers and local experts).
Mekuria, Wolde, Veldkamp, Edzo, Haile, Mitiku, Gebrehiwot, Kindeya, Muys, Bart, Nyssen, Jan   +5 more
core   +1 more source

Backbone Engineering of Carbon‐Centered NHC‐Derived Diradicals: From Electronic State Tuning to High‐Performance Organic Field‐Effect Transistors

Advanced Materials, EarlyView.
The open‐shell nature of diradicals facilitates charge separation, and compounds with moderate diradical character demonstrate remarkable potential in organic field‐effect transistors (OFET) applications due to their low reorganization energies for hole and electron transport.
Xiao‐Xu Liu, Lianghui Li, Xin Li, Can Chen, Man Li, Shun Tian, Paul J. Dyson, Ying‐Feng Han   +7 more
wiley   +1 more source

Range grazing capacity raised: Program of seeding annual clovers, fertilization and grazing management resulted in improved forage quality and quantity

California Agriculture, 1956
A threefold increase in grazing capacity was achieved in a five-year range improvement program involving the seeding of adapted clovers, phosphorus fertilization, and grazing management on over 500 acres.
W Williams, R Merton Love, J Conrad
doaj  

Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia Grazing alters nutrient dynamics of grasslands

Ecology and Evolution, 2020
Grazing is a traditional grassland management technique and greatly alters ecosystem nutrient cycling. The effects of grazing intensity on the nutrient dynamics of soil and plants in grassland ecosystems remain uncertain, especially among microelements ...
Dongjie Hou, Ke Guo, Changcheng Liu
doaj   +1 more source

A Proposed Livestock Research Program for Alaska [PDF]

, 1963
This report presents, primarily, areas of research and research goals on range management and beef cattle production that 1) appear to be most urgent and 2) that appear attainable within the next few years without a great expansion of personnel ...
Story, Charles D.
core  

Balancing livestock free grazing and ecosystem functionality: investigating the carrying capacity of grazing land in the Eastern Savannah of Rwanda

Tropical Animal Health and Production
Abstract This study focused on investigating the carrying capacity of individual grazing lands in the Eastern Province of Rwanda. We collected data on above-ground biomass of natural pasture from 63 farms during the wet and dry seasons to capture the seasonal variation of forages.
Mupenzi Mutimura, Athanase Mukuralinda, Jean Damascene Ndayambaje, Thomas Gakwavu, Jean Claude Bambe, Ermias Betemariam, Olivier Habimana   +6 more
openaire   +2 more sources

Evolution of Materials and Device Stacks for HfO2‐Based Ferroelectric Memories

Advanced Materials Interfaces, EarlyView.
This review summarizes engineering strategies for HfO2 based ferroelectric memories with focus on FeCAP and FeFET structures. It describes how dopant design, stress effects, and interface engineering improve the bulk ferroelectric response. It further discusses how channel engineering supports reliable memory characteristics and scalable integration ...
Eunjin Kim, Jiyong Woo
wiley   +1 more source