Note on “future supply uncertainty in EOQ models”

Author(s):  
Emre Berk ◽  
Antonio Arreola-Risa
2002 ◽  
Vol 16 (5) ◽  
pp. 226-227 ◽  
Author(s):  
L. Mogridge
Keyword(s):  

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1054-1057
Author(s):  
Bindu Swetha Pasuluri ◽  
Anuradha S G ◽  
Manga J ◽  
Deepak Karanam

An unanticipated outburst of pneumonia of inexperienced in Wuhan, , China stated in December 2019. World health organization has recognized pathogen and termed it COVID-19. COVID-19 turned out to be a severe urgency in the entire world. The influence of this viral syndrome is now an intensifying concern. Covid-19 has changed our mutual calculus of ambiguity. It is more world-wide in possibility, more deeply , and much more difficult than any catastrophe that countries and organizations have ever faced. The next normal requires challenging ambiguity head-on and building it into decision-making. It is examined that every entity involved in running supply chains would require through major as employee, product, facility protocols, and transport would have to be in place. It is an urgent need of structuring to apply the lessons well-read for our supply chain setup. With higher managers now being aware of the intrinsic hazards in their supply chain, key and suggestions-recommendations will help to guide leader to commit to a newly planned, more consistent supply chain setup. Besides, the employees’ mental health is also a great concern.


Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 553
Author(s):  
Inga-Mareike Bach ◽  
Lisa Essich ◽  
Torsten Müller

Despite phosphorus resources on Earth being limited, over fertilization in many agricultural situations causes significant resource consumption. Phosphorus-recycling within agricultural production can reduce global dilution into the environment and is thus essential to secure sustainable future supply. This study investigated the fertilization efficacy of phosphorus fertilizers recycled from biogas digestates in maize shoots grown under controlled greenhouse conditions, in two soils, in a pot experiment. Variables investigated were plant-available phosphorus in soil, plant biomass production, and concentration of phosphorus, calcium, and magnesium in shoots. Soils were treated with three different fertilizer fractions, separated from biogas digestates, at equivalent phosphorus concentrations, using different combinations and application techniques, isolated or in combination, and compared to triple superphosphate (TSP) as a reference. One of the fractions (P-Salt) had effects on biomass production and plant phosphorus concentration equivalent to TSP in agricultural surface soil. In the second soil (with less active soil life and nutrient content), equivalence to TSP was achieved with combinations of two recycled fractions (P-Salt and dried solids). The enhancement of the phosphorus fertilizing effect by the solids was synergistic, indicating that the solids had a soil conditioning effect. The results show that biogas digestates are a valuable source for phosphorus recycling of fractions that have equivalent or even superior fertilizing properties compared to TSP.


Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 191
Author(s):  
Samir Mili ◽  
Maria Bouhaddane

Forecasting future supply and demand is a topical subject in the olive oil sector due to its relevance for decision making and the lack of comprehensive and consensual estimates at the global level. This study aims at overcoming this gap in research by providing a foresight of global supply and demand for olive oil for the years to come. We use the Delphi technique to estimate the expected annual growth rates in the olive oil production and consumption worldwide as well as their likely impact on Spanish exports by 2025. Another key objective of the study is to elicit expert judgements on the factors that are likely to shape the predicted changes as well as the international challenges ahead. Results suggest substantial future increases in production in new-producing countries, in parallel with a slower growth in the European traditional suppliers whose focus will increasingly be placed on quality and sustainability rather than quantity. In addition, a significant growth in the world’s demand for olive oil is expected in non-traditional markets, which will be driven by greater awareness of the positive health and sustainability attributes of this product, jointly with the changes in lifestyles and rising incomes of several consumer segments. These emerging markets offer promising prospects for the international expansion of olive oil companies. Future international challenges facing the olive oil industry include new market entry, worldwide product promotion, quality standards’ harmonization, enacting trade facilitation schemes, and dealing with the COVID-19 impacts. Findings improve market predictability and transparency, and ultimately support decision-making and strategic planning in the olive oil sector.


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