Results 71 to 80 of about 223,494 (299)

The Cost of a Nutritious Diet in Cafeterias: Evidence From US Military Dining Facilities

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Providing nutritious meals in institutional settings with financial constraints, such as military dining facilities, is challenging. The US Department of War (DoW) and US Department of Agriculture (USDA) collaborated to modernize the Basic Daily Food Allowance (BDFA) using an optimization model that incorporates service members' consumption ...
Linlin Fan   +8 more
wiley   +1 more source

Performance analysis of buck, boost, and buck-boost converters under variable load conditions

open access: yesWorld Journal of Advanced Research and Reviews, 2020
This paper presents a comprehensive performance analysis of three fundamental DC-DC power converter topologies: Buck, Boost, and Buck-Boost converters under variable load conditions. The study examines efficiency characteristics, voltage regulation, transient response, and thermal performance across different loading scenarios. Through detailed circuit
openaire   +1 more source

How Video‐Based Information Affects Farmers' Willingness to Pay for Drone Services

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Professional service for digital technology like agricultural drones lowers transaction costs and scope thresholds for smallholders. Meanwhile, perceptual adoption barriers remain underexplored. We conduct a two‐stage choice experiment with a randomized video‐based information treatment among 384 Chinese crop farmers to measure its effect on ...
Hua Zhang   +4 more
wiley   +1 more source

Stability analysis for an ad-hoc model predictive control in DC/DC converters with a constant power load

open access: yesResults in Engineering
This paper presents a stability analysis for a horizon-one continuous control set model predictive control (MPC) for DC/DC converters connected to a constant power loads (CPLs).
Alejandro Garcés-Ruiz   +2 more
doaj   +1 more source

Realization of a Photovoltaic Fed Sparse Alternating Current (AC)-Link Inverter

open access: yesThe Journal of Engineering Research, 2016
In this paper, a soft-switched alternating current (AC)-link buck-boost inverter with a reduced number of switches, referred to as a sparse AC-link buck-boost inverter, was designed and implemented for a photovoltaic (PV) interface. Important features of
R. Ramaprabha   +3 more
doaj   +1 more source

Buck-boost converter Fed nine level cascaded H-bridge inverter

open access: yes
This research investigates on simulation of a traditional cascaded H-bridge (CHB) five-level inverter and proposes a nine-level cascaded H-bridge inverter system. The performance of both five-level and nine-level inverter systems is evaluated by modeling
Babu, R. Samuel Rajesh   +2 more
core   +1 more source

Conversores utilizando células de comutação de quatro estados [PDF]

open access: yes, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O presente trabalho versa sobre conversores estáticos baseados em uma célula de comutação de quatro estados.
Peraça, Mauro Tavares
core  

Hemp Cultivation and Crop Diversification: Implications for Ecosystem Services in Kentucky

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the ecosystem benefits of expanding hemp cultivation by assessing its impact on crop diversity. Using scenario‐based simulations and fixed‐effect panel regressions with county‐level data in Kentucky, we find that increased hemp acreage tends to enhance crop diversity, improving water quality and bird diversity.
Yunsun Park   +4 more
wiley   +1 more source

Temporary Programs, Lasting Questions: Ad Hoc Assistance in the U.S. Farm Safety Net

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Large ad hoc assistance programs have returned to U.S. farm policy since 2017, operating alongside a more developed safety net built around federally subsidized crop insurance, Title I commodity programs, and standing disaster assistance. This paper reviews the renewed use of ad hoc assistance, documents its recent scale using USDA data, and ...
Alejandro Plastina   +1 more
wiley   +1 more source

Analyzing individual rent price ratios in eastern German agricultural land markets: A GAMLSS approach

open access: yesAgribusiness, EarlyView.
Abstract This study explores the rent price ratio in agricultural land markets, crucial for evaluating market efficiency, policy needs, and farmer decision‐making. Traditionally, the analyses faced challenges due to the absence of concurrent sale and rent data for the same land, potentially leading to biased results.
Marius Michels   +4 more
wiley   +1 more source

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