Results 41 to 50 of about 547,578 (311)

How Competitive Is Myanmar's Rice Sector? A Comparison of Production Costs and Efficiency

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper analyzes the cost competitiveness of rice production in Myanmar by examining production costs, cost efficiency, and the potential effect of improving cost efficiency on the country's global competitiveness. To achieve this, we conduct a comparative analysis of production costs among major rice‐producing countries and estimate the ...
Nandar Aye Chan   +3 more
wiley   +1 more source

The Effect of Non-Circular Bearing Shapes in Hydrodynamic Journal Bearings on the Vibration Behavior of Turbocharger Structures

open access: yesLubricants, 2017
Increasing quality demands of combustion engines require, amongst others, improvements of the engine’s acoustics and all (sub)components mounted to the latter. A significant impact to the audible tonal noise spectrum results from the vibratory motions of
Lukas Bernhauser   +3 more
doaj   +1 more source

Modular Chiral N-Heterocyclic Carbene Ligands for the Nickel-Catalyzed Enantioselective C–H Functionalization of Heterocycles

open access: yesCHIMIA, 2020
N-Heterocyclic carbenes (NHCs) are the ligands of choice in a large variety of transformations entailing different transition metals. However, the number and variety of chiral NHCs suitable as stereo-controlling ligands in asymmetric catalysis remains ...
Johannes Diesel, Nicolai Cramer
doaj   +1 more source

Fatigue life prediction of 3D braided carbon/carbon composites with braided angle variation at elevated temperature

open access: yesJournal of Engineered Fibers and Fabrics, 2023
The braiding angle of 3D braided carbon/carbon composites (C/CCs) will change during high temperature fatigue loading, which will affect the fatigue properties of 3D braided C/CCs.
Xinglin Yang   +4 more
doaj   +1 more source

The changes of burning efficiency emission and power output of a diesel engine fueled by bioethanol – biodiesel-diesel oil mixtures [PDF]

open access: yes, 2006
The environmental pollution and the decrease of the oil based fuels are the greatest problems of the automotive-industry at the start of the 21st century.
Zöldy, Máté
core  

Economic and Environmental Tradeoffs in Cultivating Short Food Supply Chains With Urban Indoor Agriculture

open access: yesAgribusiness, EarlyView.
ABSTRACT This study advances the literature on sustainable urban agriculture and alternative sustainable food production systems, which have gained momentum due to the need to strengthen regional food supply chains and meet the growing urban demand for fresh food. Indoor agriculture (IA) holds promise for year‐round cultivation of fresh produce even in
Joseph Seong   +2 more
wiley   +1 more source

Random forest method for estimation of brake specific fuel consumption

open access: yesScientific Reports, 2023
The internal combustion engine is a widely used power equipment in various fields, and its energy utilization is measured using brake specific fuel consumption (BSFC).
Qinsheng Yun   +3 more
doaj   +1 more source

The Problem With Diesel [PDF]

open access: yesJNCI Journal of the National Cancer Institute, 2012
Diesel engine exhaust (DEE) is a complex mixture of substances characterized by polycyclic aromatic hydrocarbons (PAH) surrounding an elemental carbon core. Diesel engines have a wide range of industrial applications including on-road equipment (most heavy and medium duty trucks and buses use diesel engines) and off-road applications in the mining ...
openaire   +2 more sources

O dilema presentista [PDF]

open access: yes, 2019
The aim of the present paper is to show that presentism cannot answer the truthmaker objection in a satisfactory manner. For such, two main categories of presentist solutions were studied: the first kind states that truthmakers can’t ...
Werberich, Matheus Diesel
core  

Farmers’ Protests in Germany: Media Coverage and Types of Bias

open access: yesAgribusiness, EarlyView.
ABSTRACT The German farmers’ protests of 2024 sparked widespread media coverage and public debate. Yet, media coverage was not always positive, reflecting the media's attention‐seeking and selective focus. Occurrences of farmers blocking media outlets reflected distrust in how their concerns were portrayed.
Felix Schlichte, Doris Läpple
wiley   +1 more source

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