Results 21 to 30 of about 22,862 (300)

Contraceptive Effect of Proligestone on Spotted Seals and Crossbreeds of Spotted Seals and Harbor Seals

open access: yesJournal of Veterinary Medical Science, 2003
Spotted seals (Phoca largha) and related crossbreeds maintained at Kamogawa Sea World breed seasonally from the end of January to middle of March. For contraception in these animals, the effect of a single administration of a contraceptive synthetic luteal hormone for dogs, proligestone (PRG), was investigated.
KATSUMATA, Etsuko   +2 more
openaire   +3 more sources

Numerical Investigation of the Effect of Radial Lip Seal Geometry on Sealing Performance [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
Sealing elements are often needed in industry and especially in machine design. With the change and development of machine technology from day to day, sealing elements show continuous development and change in parallel with these developments. Many factors influence the performance of the sealing elements such as shaft surface roughness, radial force ...
Tok, Görkem   +2 more
openaire   +2 more sources

Infiltration and sealing for managing non-cavitated proximal lesions: a systematic review and meta-analysis

open access: yesBMC Oral Health, 2021
Background Infiltration and sealing are micro-invasive treatments for arresting proximal non-cavitated caries lesions; however, their efficacies under different conditions remain unknown.
Yuanyuan Chen, Dongru Chen, Huancai Lin
doaj   +1 more source

Integration of Remotely Sensed Soil Sealing Data in Landslide Susceptibility Mapping

open access: yesRemote Sensing, 2020
Soil sealing is the destruction or covering of natural soils by totally or partially impermeable artificial material. ISPRA (Italian Institute for Environmental Protection Research) uses different remote sensing techniques to monitor this process and ...
Tania Luti   +4 more
doaj   +1 more source

Sealing effectiveness of fissure sealants bonded with universal adhesive systems: influence of different etching modes [PDF]

open access: yes, 2017
This study compared the sealing effectiveness of fissure sealants bonded to enamel with universal adhesive systems applied in self-etch (SE) or etch-and-rinse (ER) modes.
Ataol, Elif   +2 more
core   +1 more source

Effects of Purge Flow Configuration on Sealing Effectiveness in a Rotor-Stator Cavity [PDF]

open access: yes, 2017
Secondary air is bled from the compressor in a gas turbine engine to cool turbine components and seal the cavities between stages. Unsealed cavities can lead to hot gas ingestion, which can degrade critical components or, in extreme cases, can be ...
Eric Grover   +5 more
core   +1 more source

Air tightness of compressed air storage energy caverns with polymer sealing layer subjected to various air pressures

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
During the operation of compressed air storage energy system, the rapid change of air pressure in a cavern will cause drastic changes in air density and permeability coefficient of sealing layer.
Shikang Qin, Caichu Xia, Shuwei Zhou
doaj   +1 more source

Cost effectiveness of crack treatment methods: A field study

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2019
In the United States, more than 94% highways are paved with asphalt materials and placing crack sealant materials has been a common pavement maintenance for decades.
Mithil Mazumder   +3 more
doaj   +1 more source

Effect of Outer Fin Axial Gap on the Sealing Effectiveness and Fluid Dynamics of Radial Rim Seal [PDF]

open access: yes, 2017
The modern gas turbine is widely applied in the aviation propulsion and power generation. The rim seal is usually designed at the periphery of the wheel-space and prevented the hot gas ingestion in modern gas turbines.
Zhigang Li   +5 more
core   +1 more source

Special Cement Slurries for Strengthening Salt Rock Mass

open access: yesEnergies, 2022
Every year, the number of exploited mine workings necessary to seal the exploited mines increases in the world. As a result of experiments, technologies are developed that allow slurry to be pumped to fill free rock spaces or to liquidate rock mass ...
Stanisław Stryczek   +2 more
doaj   +1 more source

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