Alternate Bearing Surfaces: Ceramic-On-Ceramic

2002 ◽  
Vol 12 (2) ◽  
pp. 108-109
Author(s):  
G. Willmann
Keyword(s):  
Alternate Bearing ◽  
Ceramic On Ceramic

Ceramic on Ceramic Bearings

2012 ◽  
Vol 04 (01) ◽  
pp. 93-103 ◽  
Author(s):  
Sukree Khumrak ◽  
Thanasak Yakampor
Keyword(s):  
Ceramic On Ceramic

scholarly journals Vegetative and Reproductive Response to Fruit Load in Two Jojoba (Simmondsia chinensis) Cultivars

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 889
Author(s):  
Aviad Perry ◽  
Noemi Tel-Zur ◽  
Arnon Dag
Keyword(s):  
Vegetative Growth ◽  
Accumulation Rate ◽  
Dry Weight ◽  
High Yield ◽  
Lower Amount ◽  
Simmondsia Chinensis ◽  
Alternate Bearing ◽  
Fruit Removal ◽  
Growing Period ◽  
Fruit Load

Jojoba (Simmondsia chinensis) is a wax crop cultivated mainly in arid and semi-arid regions. This crop has been described as an alternate-bearing plant, meaning that it has a high-yield year (“on-year”) followed by a low-yield year (“off-year”). We investigated the effect of fruit load on jojoba’s vegetative and reproductive development. For two consecutive years, we experimented with two high-yielding cultivars—Benzioni and Hazerim—which had opposite fruit loads, i.e., one was under an on-year load, while the other was under an off-year load simultaneously. We found that removing the developing fruit from the shoot during an off-year promotes further vegetative growth in the same year, whereas in an on-year, this action has no effect. Moreover, after fruit removal in an on-year, there was a delay in vegetative growth renewal in the consecutive year, suggesting that the beginning of the growing period is dependent on the previous year’s yield load. We found that seed development in the 2018 season started a month earlier than in the 2017 season in both cultivars, regardless of fruit load. This early development was associated with higher wax content in the seeds. Hence, the wax accumulation rate, as a percentage of dry weight, was affected by year and not by fruit load. However, on-year seeds stopped growing earlier than off-year seeds, resulting in smaller seeds and an overall lower amount of wax per seed.

scholarly journals Analysis of Chemisorbed Tribo-Film for Ceramic-on-Ceramic Hip Joint Prostheses by Raman Spectroscopy

2021 ◽  
Vol 12 (2) ◽  
pp. 29
Author(s):  
Risha Rufaqua ◽  
Martin Vrbka ◽  
Dušan Hemzal ◽  
Dipankar Choudhury ◽  
David Rebenda ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Hyaluronic Acid ◽  
Hip Joint ◽  
Total Joint Replacement ◽  
Film Formation ◽  
Frictional Coefficient ◽  
Synovial Fluids ◽  
Frictional Coefficients ◽  
Joint Prostheses ◽  
Ceramic On Ceramic

To understand the possible lubricant mechanism in ceramic-on-ceramic hip joint prostheses, biochemical reactions of the synovial fluid and the corresponding frictional coefficients were studied. The experiments were performed in a hip joint simulator using the ball-on-cup configuration with balls and cups made from two types of ceramics, BIOLOX®forte and BIOLOX®delta. Different lubricants, namely albumin, γ-globulin, hyaluronic acid and three model synovial fluids, were studied in the experiments and Raman spectroscopy was used to analyze the biochemical responses of these lubricants at the interface. BIOLOX®delta surface was found less reactive to proteins and model fluid lubricants. In contrast, BIOLOX®forte ball surface has shown chemisorption with both proteins, hyaluronic acid and model fluids imitating total joint replacement and osteoarthritic joint. There was no direct correlation between the measured frictional coefficient and the observed chemical reactions. In summary, the study reveals chemistry of lubricant film formation on ceramic hip implant surfaces with various model synovial fluids and their components.

Effects of clonal rootstocks on ‘Hass’ avocado yield components, alternate bearing, and nutrition

2007 ◽  
Vol 82 (3) ◽  
pp. 460-466 ◽  
Author(s):  
Michael V. Mickelbart ◽  
Gary S. Bender ◽  
Guy W. Witney ◽  
Carol Adams ◽  
Mary Lu Arpaia
Keyword(s):  
Yield Components ◽  
Alternate Bearing ◽  
Hass Avocado

scholarly journals In vivo and in vitro outcomes of alumina, zirconia and their composited ceramic-on-ceramic hip joints

2013 ◽  
Vol 121 (1412) ◽  
pp. 382-387 ◽  
Author(s):  
Herman Shah Abd RAHMAN ◽  
Dipankar CHOUDHURY ◽  
Noor Azuan Abu OSMAN ◽  
Hanie Nadia SHASMIN ◽  
Wan Abu Bakar Wan ABAS
Keyword(s):  
Hip Joints ◽  
Ceramic On Ceramic
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