Results 21 to 30 of about 847,146 (267)

Joint Production Planning and Product Delivery Commitments with Random Yield [PDF]

open access: yesOperations Research, 1992
We consider a producer who turns a raw material into a product. Before embarking upon production, the producer has to consider the quantity of raw material to order and the finished product delivery commitments; the actual amount produced is a random multiple of the amount of raw material ordered. A concave expected profit function is introduced which
Mordechai I. Henig, Nissan Levin
openaire   +2 more sources

Investigation into the microscopic mechanism underlying formation damage induced by the reinjection of oil-bearing wastewater

open access: yesFrontiers in Earth Science
The reinjection of treated oilfield water into formations stands as one of the commonly employed methods in oilfield water injection development. However, certain treated waters contain a substantial number of suspended oil droplets, which can lead to ...
Chao Tang   +35 more
doaj   +1 more source

Recent Research on Economic Production and Water Absorption Improvement of Bacterial Cellulose: A Review [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
Bacterial Cellulose (BC) has been applied in various industries, like the hygiene and medical industry, due to its functional properties (water absorption properties, mechanical strength, biodegradability, and nanostructure).
Maryam Nasresfahani   +2 more
doaj   +1 more source

Role of Environmental Factors in Legume-Rhizobium Symbiosis: A Review

open access: yesBiomolecules
Legumes play a pivotal role in addressing global challenges of food and nutrition security by offering a sustainable source of protein and bioactive compounds.
Liudmyla Yeremko   +4 more
doaj   +1 more source

Agricultural yield geographies in the United States

open access: yesEnvironmental Research Letters, 2021
We examine the geographies of agricultural yields in the United States, home to some of the most productive agricultural systems on the planet. We model and map yield divergence from biophysical expectations and regional norms for five major crops—corn ...
Emily K Burchfield, Katherine S Nelson
doaj   +1 more source

Increasing in the Extraction Yield of Environmentally Friendly Antifouling Agent from Pseudomonas Aeruginosa MUT3 by Response Surface Methodology (RSM) [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
In the present study, the solvent-solvent extraction of phenazine 1-carboxylic acid (PCA) as an environmentally friendly antifouling agent from pseudomonas aeruginosa MUT3 culture was investigated.
Hamid Mosmeri   +3 more
doaj  

Economic Impact of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic

open access: yesJournal of Forest Science, 2014
The article addresses the issues of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic (CR). Our analysis shows that the tree species can occupy 149,616-163,713 ha in the CR (with respect to ecological limits set by the ...
K. Pulkrab, M. Sloup, M. Zeman
doaj   +1 more source

A new feasible method for yield gap analysis in regions dominanted by smallholder farmers, with a case study of Jiangsu Province, China

open access: yesJournal of Integrative Agriculture, 2021
In the regions where crops were mostly produced by smallholder farmers, the analysis of yield gap is difficult due to diverse cultivars, crop managements and yield levels.
Jing-jing SHAO   +5 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo   +9 more
wiley   +1 more source

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