early failure-rate period

2011 ◽  
Keyword(s):  
Failure Rate ◽  
Early Failure ◽  
Rate Period

scholarly journals Paper # 106: The Low Contact Stress Patellofemoral Arthroplasty – High Early Failure Rate

2011 ◽  
Vol 27 (10) ◽  
pp. e138-e139
Author(s):  
Paul M. Sutton ◽  
Bambos Charalambous ◽  
Simon Mills ◽  
Zain Abiddin Z ◽  
Shaun Rogers ◽  
...  
Keyword(s):  
Failure Rate ◽  
Contact Stress ◽  
Patellofemoral Arthroplasty ◽  
Early Failure ◽  
Low Contact Stress

Operative angiography after femoropopliteal arterial reconstructionits influence on early failure rate

1968 ◽  
Vol 55 (2) ◽  
pp. 134-136 ◽  
Author(s):  
Stuart Renwick ◽  
John P. Royle ◽  
Peter Martin
Keyword(s):  
Failure Rate ◽  
Early Failure

scholarly journals High Early Failure Rate After Cementless Hip Replacement in the Octogenarian

2014 ◽  
Vol 472 (9) ◽  
pp. 2779-2789 ◽  
Author(s):  
Esa Jämsen ◽  
Antti Eskelinen ◽  
Mikko Peltola ◽  
Keijo Mäkelä
Keyword(s):  
Failure Rate ◽  
Hip Replacement ◽  
Early Failure

scholarly journals Survival Analysis of Fatigue and Rutting Failures in Asphalt Pavements

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Pabitra Rajbongshi ◽  
Sonika Thongram
Keyword(s):  
Survival Analysis ◽  
Failure Rate ◽  
Failure Time ◽  
Dependent Random Variable ◽  
Survival Function ◽  
Random Variable ◽  
Asphalt Pavements ◽  
Rate Period ◽  
Pavement Structures ◽  
Probability Density Function Pdf

Fatigue and rutting are two primary failure mechanisms in asphalt pavements. The evaluations of fatigue and rutting performances are significantly uncertain due to large uncertainties involved with the traffic and pavement life parameters. Therefore, deterministically it is inadequate to predict when an in-service pavement would fail. Thus, the deterministic failure time which is known as design life (yr) of pavement becomes random in nature. Reliability analysis of such time (t) dependent random variable is the survival analysis of the structure. This paper presents the survival analysis of fatigue and rutting failures in asphalt pavement structures. It is observed that the survival of pavements with time can be obtained using the bathtub concept that contains a constant failure rate period and an increasing failure rate period. The survival function (S(t)), probability density function (pdf), and probability distribution function (PDF) of failure time parameter are derived using bathtub analysis. It is seen that the distribution of failure time follows three parametric Weibull distributions. This paper also works out to find the most reliable life (YrR) of pavement sections corresponding to any reliability level of survivability.

scholarly journals CUA guideline:Vasectomy

2016 ◽  
Vol 10 (7-8) ◽  
pp. 274 ◽  
Author(s):  
Armand Zini ◽  
John Grantmyre ◽  
Peter Chan
Keyword(s):  
Failure Rate ◽  
Evidence Based ◽  
Extensive Literature ◽  
Motile Sperm ◽  
Early Failure ◽  
Adequate Information ◽  
Late Failure ◽  
Elective Procedure ◽  
Fascial Interposition ◽  
Careful Assessment

<p>Vasectomy is a safe and effective method of birth control. Although it is a simple elective procedure, vasectomy is associated with potential minor and major complications. The early failure rate of vasectomy (presence of motile sperm in the ejaculate at 3‒6 months post-vasectomy) is in the range of 0.3‒9% and the late failure rate is in the range of 0.04–0.08%. The no-scalpel vasectomy technique is associated with a lower risk of early postoperative complications and the use of cautery or fascial interposition will reduce the risk of contraceptive failure. As such, detailed preoperative counselling and careful assessment of the post-vasectomy ejaculate (for presence of sperm) is imperative. Failure to provide and document adequate information and counselling to patients may lead to litigation.</p><p>The focus of this guideline is the management of men presenting for vasectomy. Specifically, the topics covered include: preoperative counselling, vasectomy efficacy and complications, technical aspects of vasectomy, post-vasectomy semen testing, and interpretation-communication of post-vasectomy semen results. By performing an extensive literature review, we have generated an evidence-based consensus on the management of these men. The objective of this guideline is to help standardize the treatment of men presenting for vasectomy.</p>

Sign in / Sign up

Export Citation Format

Share Document