Results 21 to 30 of about 601,819 (268)

Pavement Deterioration Rate and Maintenance Cost for Low-Volume Roads [PDF]

open access: yesMATEC Web of Conferences, 2020
Allocated budgets for maintenance of road networks are normally limited. Therefore, not all roads receive the required attention they deserve in a timely manner. These roads are left to deteriorate until the next maintenance round.
Al-Suleiman Turki I   +3 more
doaj   +1 more source

An economic production quantity (EPQ) model for a deteriorating item with partial trade credit policy for price dependent demand under inflation and reliability [PDF]

open access: yesYugoslav Journal of Operations Research, 2021
It is well-known that the production-inventory problem for deteriorating items in the supply chain is a challenge when deciding on how many products to manufacture to obtain a maximum total profit.
Akbar Shaikh Ali   +3 more
doaj   +1 more source

Characterizing the Preservation Potential of Buried Marine Archaeological Sites

open access: yesHeritage, 2020
The preservation potential of sediments from a submerged prehistoric site buried in a full marine environment was assessed using a combination of direct in situ measurements, measurements on extracted sediment cores and laboratory mesocosm experiments ...
David Gregory
doaj   +1 more source

Study of Materials and Techniques for the Conservation of Two Miniature Paintings

open access: yesConservation Science in Cultural Heritage, 2018
This research includes a study on the conservation of two miniature paintings produced by unknown artists and probably dated to the second half of the 18th century.
Moustafa Attia Mohie   +1 more
doaj   +1 more source

Material Structural Deficiencies of Road Bridges in the U.S.

open access: yesInfrastructures, 2018
This study analyzes the National Bridge Inventory in the U.S. to determine the relative structural deficiencies of bridge materials, comparing between the overall national values and each state, geographically.
Daniel N. Farhey
doaj   +1 more source

Patterns of Deterioration in Moderate Patients With COVID-19 From Jan 2020 to Mar 2020: A Multi-Center, Retrospective Cohort Study in China

open access: yesFrontiers in Medicine, 2020
Background: Around the globe, moderate cases account for the largest proportion of all coronavirus disease 2019 (COVID-19) patients, and deteriorated moderate patients contribute the most in mortality.
Sheng-long Chen   +15 more
doaj   +1 more source

Deterioration, Compensation and Motor Control Processes in Healthy Aging, Mild Cognitive Impairment and Alzheimer’s Disease

open access: yesGeriatrics, 2021
Aging is associated with modifications of several brain structures and functions. These modifications then manifest as modified behaviors. It has been proposed that some brain function modifications may compensate for some other deteriorated ones, thus ...
Gabriel Poirier   +4 more
doaj   +1 more source

Image analysis on disintegrated concrete at the post-heating stage

open access: yesRevista ALCONPAT, 2020
The relation between crack growth and reduction in the compressive strength after high temperature exposure and after air re-curing was investigated in this study.
A. H. Akca, N. Özyurt
doaj   +1 more source

Sterilization of Ready to Serve Product for Special Needs of Hajj and Umrah: Skipjack Tuna in A Retort Pouch Package [PDF]

open access: yesE3S Web of Conferences, 2023
One crucial period in the provision of food for Hajj/Umrah is the time between opening the package and consuming it by the pilgrims. This study aimed to determine the sterilization time to prevent damage and maintain acceptance by consumers.
Azhari Elsa   +7 more
doaj   +1 more source

Fungal Biodegradation of Polyurethanes

open access: yesJournal of Fungi, 2023
Polyurethanes (PURs) are versatile polymers used in a wide variety of fields, such as the medical, automotive, textile, thermal insulation, and coating industries as well as many everyday objects.
Clotilde Maestri   +4 more
doaj   +1 more source

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