نتایج جستجو برای: defective quality
تعداد نتایج: 791667 فیلتر نتایج به سال:
In this survey, opsonization activity of sera in 110 patients with meningitis, sepsis and recurrent infection 12 patients after healing and 50 normal adults has been studied. Opsonization activity was measured by an assay depending on electronic particle counting to measure yeast uptake (alternative pathway activator) which was modified in our laboratory. Three classes of immunoglobulins (...
This study aimed at presenting a method for formulating optimal production, repair and replacement policies. The system was based on the production rate of defective parts and machine repairs and then was set up to optimize maintenance activities and related costs. The machine is either repaired or replaced. The machine is changed completely in the replacement process, but the productio...
Expert aquatic designers face many problems; among these, in hydrology, defective occurrences in time-series can cause errors in the ultimate results of the study. This more often happens in the regions where the number of hydrometric and rain gauge stations is limited. In addition, assessing, developing and maintaining the use of water resources require accessible long-term and high-quality qu...
In textile industry, reliable and accurate quality control and inspection becomes an important element. Presently, this is still accomplished by human experience, which is very time consuming and prone to errors. Hence automated visual inspection systems become mandatory in textile industries. Here the automatic fabric defect detection using Multi Resolution Combined Statistical and spatial Fre...
Quality of packaging is a key factor in consumer choice for particular product. Besides the package appearance, legal requirements demand that certain information presented to consumer. The main goal this work evaluate technical feasibility using Raspberry Pi board as platform automatic quality inspection expiration date and batch polyethylene terephthalate (PET) bottles. system consists captur...
Background: It was believed that Inhabitant of Islamshahr avoid referring to their health centers and health posts to receive bargain medical services. In search for the rate and causes of such neglect, this study was formed. Materials and Methods: In a cross-sectional study from all urban centers and health posts under the supervision of Islamshahr health network, 712 files were selected rando...
During an experimental period of 12 months in 1992-1993, while we were comparing the effectiveness of monthly vs quarterly use of the National Institute for Standards and Technology Standard Reference Material (NIST SRM) 909a as an accuracy material for the projected 30-year Fernald Medical Monitoring Program, we encountered three random defective vials with a glucose recovery of less than 30% ...
Background: Defective sperm quality is a significant cause of infertility in men. It is known that nitric oxide (NO) is a highly reactive free radical gas which has a dual function, being both a cytotoxic and necessary molecule for normal sperm production. Materials and Methods: To investigate correlation between NO levels with sperm parameters, a case-control study were designed with total of ...
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