Technological breakthrough in pad life improvement and its impact on CMP CoC

2003 ◽  
Author(s):  
S. Huey ◽  
S.T. Mear ◽  
Yuchun Wang ◽  
R.R. Jin ◽  
J. Ceresi ◽  
...  
Keyword(s):  
Technological Breakthrough ◽  
Life Improvement

Quality Retention and Shelf-life Improvement of Fresh-cut Apple, Papaya, Carrot and Cucumber by Chitosan-soy Based Edible Coating

2015 ◽  
Vol 11 (4) ◽  
pp. 282-291 ◽  
Author(s):  
Pandian Arjun ◽  
Deepak Semwal ◽  
Ruchi Badoni Semwal ◽  
Satyendra Prasad Mishra ◽  
Anita Blessy Vijayan ◽  
...  
Keyword(s):  
Shelf Life ◽  
Edible Coating ◽  
Quality Retention ◽  
Life Improvement ◽  
Fresh Cut

Mechanisms involved in the tool life improvement of laser assisted machining 45%SiCp/Al composites

2021 ◽  
Vol 139 ◽  
pp. 106919
Author(s):  
Xianjun Kong ◽  
Jin Wang ◽  
Minghai Wang ◽  
Ben Wang ◽  
Yaohui Zheng ◽  
...  
Keyword(s):  
Tool Life ◽  
Laser Assisted Machining ◽  
Life Improvement

scholarly journals Fatigue Life Improvement of Cracked Aluminum 6061-T6 Plates Repaired by Composite Patches

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1421
Author(s):  
Armin Yousefi ◽  
Saman Jolaiy ◽  
Reza Hedayati ◽  
Ahmad Serjouei ◽  
Mahdi Bodaghi
Keyword(s):  
Fatigue Life ◽  
Fatigue Behavior ◽  
Weight Ratio ◽  
High Strength ◽  
Plastic Strain Amplitude ◽  
Composite Patch ◽  
Life Improvement ◽  
Cracked Structures ◽  
Aluminum Plates ◽  
High Flexibility

Bonded patches are widely used in several industry sectors for repairing damaged plates, cracks in metallic structures, and reinforcement of damaged structures. Composite patches have optimal properties such as high strength-to-weight ratio, easiness in being applied, and high flexibility. Due to recent rapid growth in the aerospace industry, analyses of adhesively bonded patches applicable to repairing cracked structures have become of great significance. In the present study, the fatigue behavior of the aluminum alloy, repaired by a double-sided glass/epoxy composite patch, is studied numerically. More specifically, the effect of applying a double-sided composite patch on the fatigue life improvement of a damaged aluminum 6061-T6 is analyzed. 3D finite element numerical modeling is performed to analyze the fatigue performance of both repaired and unrepaired aluminum plates using the Abaqus package. To determine the fatigue life of the aluminum 6061-T6 plate, first, the hysteresis loop is determined, and afterward, the plastic strain amplitude is calculated. Finally, by using the Coffin-Manson equation, fatigue life is predicted and validated against the available experimental data from the literature. Results reveal that composite patches increase the fatigue life of cracked structures significantly, ranging from 55% to 100% for different applied stresses.

scholarly journals Quality of Life in Opioid Replacement Therapy: A Naturalistic Cross-Sectional Comparison of Methadone/Levomethadone, Buprenorphine, and Diamorphine Patients

2021 ◽  
pp. 1-10
Author(s):  
Stephanie Paula Elisabeth Guillery ◽  
Rainer Hellweg ◽  
Golo Kronenberg ◽  
Ulrich Bohr ◽  
Hagen Kunte ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Replacement Therapy ◽  
Psychological Functioning ◽  
Treatment Options ◽  
Chronically Ill ◽  
Cross Sectional ◽  
Life Improvement ◽  
Methadone Patients ◽  
Opioid Replacement Therapy

<b><i>Background:</i></b> Research on quality of life (QoL) of chronically ill patients provides an opportunity to evaluate the efficacy of long-term treatments. Although it is established that opioid replacement therapy is an effective treatment for opioid-dependent patients, there is little knowledge about physical and psychological functioning of QoL for different treatment options. <b><i>Objectives:</i></b> Altogether, 248 opioid-dependent patients receiving substitution treatment with either methadone/levomethadone (<i>n</i> = 126), diamorphine (<i>n</i> = 85), or buprenorphine (<i>n</i> = 37) were recruited in 6 German therapy centers. <b><i>Methods:</i></b> Sociodemographic data were collected. QoL – physical and psychological functioning – for different substitutes was assessed using the <i>Profile of the Quality of Life in the Chronically Ill</i> (PLC) questionnaire. <b><i>Results:</i></b> Patient groups were similar regarding age and duration of opioid dependence. Employment rate was significantly higher (<i>p</i> &#x3c; 0.005, φ = 0.22) in the buprenorphine group (46%) compared to methadone (18%). Dosage adjustments were more frequent (<i>p</i> &#x3c; 0.001, φ = 0.29) in diamorphine (55%) than in methadone (30%) or buprenorphine (19%) patients. Buprenorphine and diamorphine patients rated their physical functioning substantially higher than methadone patients (<i>p</i> &#x3c; 0.001, η<sup>2</sup> = 0.141). Diamorphine patients reported a higher psychological functioning (<i>p</i> &#x3c; 0.001, η<sup>2</sup> = 0.078) and overall life improvement (<i>p</i> &#x3c; 0.001, η<sup>2</sup> = 0.060) compared to methadone, but not compared to buprenorphine patients (both <i>p</i> &#x3e; 0.25). <b><i>Conclusion:</i></b> Measurement of important QoL aspects indicates significant differences for physical and psychological functioning in patients receiving the substitutes methadone/levomethadone, diamorphine, and buprenorphine. This could be relevant for the differential therapy of opioid addiction.

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