Results 111 to 120 of about 5,342,136 (301)
Characteristics and Main Effects of Contract Agriculture in La Costa de Hermosillo
Expert Journal of Economics, 2019 The Costa de Hermosillo is an agricultural region of the state of Sonora, Mexico, with a semi-desert climate which has been closed for water extraction for more than fifty years.
María del Rosario FATIMA ROBLES-ROBLES +1 more
doaj
Journal of Market Access & Health PolicyThe objectives were to assess the economic burden of COVID-19 and impact of workplace COVID-19 vaccination in the United States (US). An economic model estimated COVID-19 workplace burden (infections, long COVID, inpatient/outpatient care, absent days ...
Ekkehard Beck +5 more
doaj +1 more source
Potential Improvements to National Park Service Visitor Surveys and Money Generation Modeling in Alaska [PDF]
, 2013 This study presents options for improving the use of the Money Generation Model in National Park Service (NPS) land units in Alaska. The Money Generation Model (MGM) is used nationwide to model economic impacts of visitation to public lands, including ...
Colt, Steve, Fay, Ginny, Hanna, Virgene
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Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
EnergiesGermany is undergoing an energy transition. By 2045, fossil fuels will be gradually replaced by clean energy. An alternative option is to use geothermal, solar and wind energy to generate heat or electricity.
Linwei Hu +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan +3 more
wiley +1 more source
Economic Cooperation and Social Identity: Towards a Model of Economic Cross-Cultural Integration [PDF]
In arguing that borders not only should be understood as economic barriers to trade, but also as cultural barriers to interaction, this paper attempts to operationalize a broader interpretation of borders with regards to economic cross-cultural ...
Olsen, Karsten Bjerring
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