Results 41 to 50 of about 81,662 (309)

An Analysis of the Impacts of Weather on Technical Efficiency in Czech Agriculture

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
Although weather is a significant determinant of agricultural production, it is not a common practice when analysing production to control for its impact. The problem is methodological, since it is difficult to find a proper proxy variable for weather in
Barbora Hřebíková, Lukáš Čechura
doaj   +1 more source

A Stochastic Frontier Model for Definition of Non-Technical Loss Targets

open access: yesEnergies, 2020
The theft of electrical energy is one of the main problems faced by electricity distribution utilities, especially in developing countries. Aware of the difficulties in combating non-technical losses (NTLs) in Brazil, the National Electric Energy Agency (
Daniel Leite   +4 more
doaj   +1 more source

Living Liquid Metal Composites Embedded with Electrogenic Endospores for Next‐Generation Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
A new class of living liquid metal composites is introduced, embedding Bacillus subtilis endospores into eutectic gallium–indium (EGaIn). The spores enhance droplet coalescence, strengthen interfacial conductivity, and provide on‐demand electrogenic functionality after germination. The composites exhibit high conductivity, self‐healing, patternability,
Maryam Rezaie, Yang Gao, Seokheun Choi
wiley   +1 more source

Are farmers technically efficient in growing sorghum crops?: evidence from western part of Ethiopia Gudeya Bila district

open access: yesHeliyon, 2022
Agriculture provides the majority of Ethiopian rural households with their principal source of income, yet it performs poorly. There is a rise in food insecurity as well as a decline in productivity as a result of this.
Tolesa Tesema
doaj   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

open access: yesAdvanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker   +14 more
wiley   +1 more source

Productivity of New Rice for Africa under Different Contour Patterns in Northern Guinea Savanna of Kaduna State, Nigeria

open access: yesJournal of Agricultural Extension, 2019
This study investigated productive and profitability capacities of contour farming technologies in rice production in Barangwaje, Ikara Local Government Area and Dutsen Abba in Zaria Local Government Area of Kaduna State.
Mamman Kwagyang Saleh
doaj   +4 more sources

Reactive Carbide‐Based Synthesis and Microstructure of NASICON Sodium Metal All Solid‐State Electrolyte

open access: yesAdvanced Materials, EarlyView.
Sodium Metal All‐Solid State Batteries (Na‐ASSBs) are enabled by the synthesis of the solid state electrolyte, NASICON (Na1+xZr2SixP3‐xO12), using carbide‐based precursor compounds (ZrC and SiC); resulting in dense, pure, and mechanically improved microstructure.
Callum J. Campbell   +10 more
wiley   +1 more source

PERTUMBUHAN TFP DAN PENGEMBANGAN EFISIENSI PRODUKSI

open access: yesBuletin Ekonomi Moneter dan Perbankan, 2007
This paper investigates both the accumulation and the quality of the input factors with stochastic frontier production function model. The application of the model also enables us to predict the technical efficiency of the input factors for each province
Endy Dwi Tjahjono, Donni Fajar Anugrah
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

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