difference between quality control and quality assurance ppt

Ngày tải lên: 13/08/2014, 03:21

Ngày tải lên: 12/08/2014, 02:20

... Internal quality control and external quality control assurance in the IVF laboratory. Hum Reprod 1998; 13(suppl 4):156–165. 6. Cutting R, Pritchard J, Clarke H, Martin K. Establishing quality control ... M. Quality control in the in vitro fertilisation laboratory: comparison of bioassay systems for water quality. J In Vitro Fertil Embryo Transf 1988; 5:335–342. Quality Assurance and Quality Control ... position with its counterparts. Quality Assurance and Quality Control in the IVF Laboratory 367 INTERNATIONAL STANDARDS OF QA AND QC Given the advantages of employing the QA and QC measures outlined above,...

Ngày tải lên: 05/08/2014, 16:20

... general class of flaws. Hwang and Lord (Ref 23) performed most of their computations for simple flaw shapes, such as rectangular and triangular slots and inclusions, and from the results devised ... of attachment between core cells and facing sheet, puddling of brazing alloy, and the face sheet seam weld have been observed in magnetic prints of honeycomb panels. Elastic and Plastic Deformation. ... practice, one noticeable difference between the ECP and conventional eddy-current method is that the frequencies employed with ECP are almost always much lower. The difference in operating frequencies...

Ngày tải lên: 10/08/2014, 13:20

... and keyboard; a joystick control was used for performing various image processor functions and for manual control of the robot. The x-ray controls, the robot controller, the isocon camera controls, ... machines to control the kilovolt and milliamp settings, the shutters, and x-ray on and off. It also interfaced with the isocon camera control unit to turn the camera beam on and off and to call ... gradient, and graininess are primarily responsible for the performance of the film during exposure and processing and for the quality of the resulting image. Film speed, gradient, and graininess...

Ngày tải lên: 10/08/2014, 13:20

... weldments and are graded according to flaw size and severity. Table 13 Reference radiographs in ASTM standards ASTM standard Subject of radiographs in standard E 155 Aluminum and magnesium ... is carried out by hand in trays or deep tanks, and automatic processing, which is accomplished in automated equipment. Guidelines for the control and maintenance of manual and automatic radiographic ... rack -and- tank method. (a) Processing tanks containing developer, stop bath, and fixer. (b) Cascade (countercurrent) washing tank Handling of Film. The processing room and all equipment and...

Ngày tải lên: 10/08/2014, 13:20

Ngày tải lên: 10/08/2014, 13:20

Ngày tải lên: 10/08/2014, 13:20

Ngày tải lên: 10/08/2014, 13:20

... experience quality through their own use. In ISO 9126:1 there are three approaches to software quality; internal quality (quality of code), external quality (quality of execution) and quality ... reflections. 1.2. What is Quality To understand the landscape of software quality it is central to answer the so often asked question: what is quality? Once the concept of quality is understood ... is that quality means goodness, or luxury or shininess. The word quality is often used to signify the relative worth of something in such phrases as “good quality , “bad quality and “quality...

Ngày tải lên: 20/12/2013, 19:15

... understand the concept of congestion To better understand the concept of congestion control, let us give two examples: one in TCP and the control, let us give two examples: one in TCP and the ... congestion control and quality of service is service is data traffic data traffic . In congestion control we try to . In congestion control we try to avoid traffic congestion. In quality of ... designed to provide quality of Two models have been designed to provide quality of service in the Internet: Integrated Services and service in the Internet: Integrated Services and Differentiated...

Ngày tải lên: 06/03/2014, 12:20

... for Healthcare Research and Quality is to improve the safety, quality, efficiency, and effectiveness of health care for all Americans, including children. Finding ways to measure and improve care for the ... programs and priorities in child health services research are available from: Denise M. Dougherty, Ph.D. Senior Advisor, Child Health and Quality Improvement Agency for Healthcare Research and Quality 540 ... treatment provided and changes to medications and can avoid medical errors. Hsiao and Shiffman, Jt Comm J Qual Patient Saf 35(9):467-474, 2009 (AHRQ grant HS15420). ã Poor asthma control is linked to family and...

Ngày tải lên: 14/03/2014, 11:20

... Testing and Materials ã W.R. DeVries and D.A. Dornfield, Inspection and Quality Control in Manufacturing Systems, American Society of Mechanical Engineers, 1982 ã C.W. Kennedy and D.E. Andrews, ... through a thorough understanding of modern techniques for nondestructive evaluation and statistical analysis can product reliability and quality control be achieved and maintained. As with ... centers, and flexible transfer lines. Before purchasing a CMM, the user needs to understand and evaluate modern CMMs and the various roles they play in manufacturing operations today and in the...

Ngày tải lên: 27/06/2014, 23:20

... Properties and selection v. 2. Properties and selection nonferrous alloysand pure metals [etc.] v. 17. Nondestructiveevaluation and quality control. 1. Metals Handbooks, manuals, etc. I. ASM Handbook ... two major roles: quality control and process control. In the area of quality control, CMMs can generally perform traditional final part inspection more accurately, more rapidly, and with greater ... application and removal of dye penetrants and for the passage of wires and sensors in eddy current measurements. Selection Flexible and rigid borescopes are available in a wide variety of standard and...

Ngày tải lên: 10/08/2014, 13:20

... monitored by reference to an aboveground liquid column or stand pipe. This method is not very effective and has a sensitivity of between 10 -1 and 10 -2 atm cm 3 /s. Detection by Water-Soluble Paper ... sensitive and the minimum detectable leak rate is approximately 10 -4 atm cm 3 /s. Special assemblies containing a pump and permeation membrane, which are placed between the detector probe and the ... References ã I. Aleksander, Artificial Vision for Robots, Chapman and Hall, 1983 ã D. Ballard and C. Brown, Computer Visions, Prentice-Hall, 1982 ã J. Brady, Computer Vision, North-Holland 1982 ã O....

Ngày tải lên: 10/08/2014, 13:20

... Inc., and Gail Jordan, Howmet Corporation Specifications and Standards It has not been practical to establish any type of universal standardization, because of the wide variety of components and ... penetrant inspection, the differences in the types of discontinuities common to them, and the differences in the degree of integrity required. Generally, quality standards for the types of discontinuities ... cleanliness of the workpiece, and sensitivity and viscosity of the penetrant. In most cases, however, a minimum of 10 min and a maximum of 30 min is adequate for both fluorescent- and visible-penetrant...

Ngày tải lên: 10/08/2014, 13:20

... H. Pao, W. Sachse, and H. Fu kuoka, Acoustoelasticity and Ultrasonic Measurement of Residual Stresses, in Physical Acoustics: Principles and Methods, Vol XVII, W.P. Mason and R.M. Thurston, ... Barkhausen Noise on Stress and the Angle Between the Stress and Magnetization Directions, J. Magn. Magn. Mater., Vol 49, 1985, p 235 22. L.P. Karjalainen, M. Moilanen, and R. Rautioaho, Evaluating ... such as coil size and test frequency. Skin Effect In addition to the geometric relationship that exists between the inspection coil and the part being inspected, the thickness and shape of the...

Ngày tải lên: 10/08/2014, 13:20

... incident and reflected waves interfere and cause a standing wave. The standing wave wavelength and peak amplitude change along the standing wave pattern and are related to the velocity and attenuation ... soil, and thick solid propellant samples in the low bands; concrete in the medium bands; and plastics and composite materials such as filament-wound glass, Kevlar, and honeycomb in the higher bands. ... equal to the instantaneous difference between the frequencies of the transmitted and delayed received waves. This difference in frequency, caused by timing differences between the waves, is proportional...

Ngày tải lên: 10/08/2014, 13:20

... and 10 mm (1, , and in.) correspond to typical search-unit sizes, and values for radiators with diameters of 3 and 1.5 mm ( and 0.060 in.) correspond to typical hole sizes in standard reference ... vibration mode, and velocity of the waves differ in solids, liquids, and gases because of the large differences in the mean distance between particles in these forms of matter. These differences ... Nondestructive Testing Handbook, American Society for Nondestructive Testing, 1986 2. H.E. Bussey, Standards and Measurements of Microwave Surface Impedance, Skin Depth , Conductivity, and Q, IRE Trans....

Ngày tải lên: 10/08/2014, 13:20

... excitation of passive objects. Uniform heating and cooling are essential, and the heating and cooling rates must be adjusted to allow the temperature differences caused by the defects to be maintained. ... Hardt and H. Rottger, Ed., Neutron Radiography Handbook, D. Reidel Publishing, 1981 5. J.P. Barton and P. Von der Hardt, Ed., Neutron Radiography, D. Reidel Publishing, 1983 6. L.E. Bryant and ... the images, and to determine coordinate locations, distances between points, or angles between lines. A plot or profile can be generated from the CT numbers along a defined line. and scatter)....

Ngày tải lên: 10/08/2014, 13:20