Research and Application on Screen Soft Proofing Technology in Printing Quality Control

2012 ◽  
Vol 262 ◽  
pp. 263-268
Author(s):  
Zhan Jun Si ◽  
Jia Wang ◽  
Chong Gu

In recent years, screen soft proofing has matured with the development of color management and display technology, and it has become the direction of printing development and the key of promotion. This article aimed at raising a testing scheme of display performance and adjusting scheme of corresponding display parameters, on this account to test the professional display’s performance, adjust display parameters and make color management. At the same time with reflecting the actual situation of display, a stable and accurate color reproduction environment was provided for screen soft proofing. After that, evaluations were carried out to evaluate printing quality of screen soft proofing on the condition that display’s performance was good, consequently the differences between proofing effects and final printing were studied. The result shows that this testing scheme of display performance can reflect the truth of display which is tested in this paper, the display after adjusted and color management according to this scheme shows good effect in the ability of screen analog proofing original, it can approach the requirements of the printing proofing.

2010 ◽  
Vol 174 ◽  
pp. 8-11
Author(s):  
Quan Hui Tian ◽  
Zhen Liu

Color management has been applied in the printing industry since 1993. Press papers as one of traditional substrates, its properties impact the quality of color reproductions. At present, almost all kinds of papers contain OBA. OBA works by absorbing ultraviolet wavelengths of the illuminant, emitting fluorescence at blue wavelengths, increasing the amount of light, and making the paper brighter. This effect of OBA is difficult to measure with common spectrophotometers accurately, which creates a mismatch between color proofing and printing. Furthermore, both the printing standards, as ISO 12647-2 defined substrate without fluorescence. It results in some problems in printing conformance using paper with OBA. This research discovered influence of OBA to color samples, derived colorimetric conversion method to correct and compensate the effects of OBA in papers, and demonstrated the efficient of the colorimetric conversion method in color management workflow with soft proofing.


2019 ◽  
Vol 2 (5) ◽  
Author(s):  
Tong Wang

The compaction quality of the subgrade is directly related to the service life of the road. Effective control of the subgrade construction process is the key to ensuring the compaction quality of the subgrade. Therefore, real-time, comprehensive, rapid and accurate prediction of construction compaction quality through informatization detection method is an important guarantee for speeding up construction progress and ensuring subgrade compaction quality. Based on the function of the system, this paper puts forward the principle of system development and the development mode used in system development, and displays the development system in real-time to achieve the whole process control of subgrade construction quality.


In construction production, the safety of constructing buildings and structures is achieved by ensuring the required quality as a result of systematic construction control based on the implementation of a complex of technical, economic and organizational measures at all stages of the object's life cycle. The article deals with the actual problem of improving the quality of construction products-buildings and structures in conjunction with the activities of construction control bodies. The article presents the advanced foreign and domestic experience of ensuring the quality control at the construction sites, providing for the prevention of the underlying causes of defects and increasing the interest of the contractors directly. On the basis of the analysis of the current situation with quality control at the construction market, ways to improve its efficiency by developing a unified system of technological implementation of relevant requirements for the quality of construction products, determining the rational number and business load of construction control engineers, as well as the active activities of self-regulatory organizations in this area are offered.


2007 ◽  
Vol 30 (4) ◽  
pp. 66
Author(s):  
N. Tenn-Lyn ◽  
S. Verma ◽  
R. Zulla

We developed and implemented an annual online survey to administer to residents exiting residency training in order to (1) assess the quality of the residency experience and (2) identify areas of strength and areas requiring improvement. Long-term goals include program planning, policy-making and maintenance of quality control. Survey content was developed from an environmental scan, pre-existing survey instruments, examination of training criteria established by the CFPC and the CanMEDS criteria established by the RCPSC. The survey included evaluation benchmarks and satisfaction ratings of program director and faculty, preparation for certification and practice, quality of life, quality of education, and work environment. The response rate was 28%. Seventy-five percent of respondents were exiting from Royal College training programs. Results of descriptive statistics determined that the overall educational experience was rated highly, with 98.9% of respondents satisfied or very satisfied with their overall patient care experience. Ninety-six percent of respondents were satisfied or very satisfied with the overall quality of teaching. Preparation for practice was identified as needing improvement, with 26% and 34% of respondents giving an unsatisfactory rating to career guidance and assistance with finding employment, respectively. Although 80% of respondents reported receiving ongoing feedback and 84% discussed their evaluations with their supervisors, only 38% of evaluations were completed by the end of the rotation. The results indicate that residents are generally satisfied with their experiences during residency training, especially with their overall educational experience. Areas of improvement include preparation for practice and timeliness of evaluations. Further iterations of this survey are needed to refine the instrument, identify data trends and maintain quality control in residency training programs. Frank JR (ed.). The CanMEDS competency framework: better standards, better physicians, better care. Ottawa: The Royal College of Physicians and Surgeons of Canada, 2005. Merritt, Hawkins and Associates. Summary Report: 2003 Survey of final-year medical residents. http://www.merritthawkins.com/pdf/MHA2003residentsurv.pdf. Accessed May 1, 2006. Regnier K, Kopelow M, Lane D, Alden A. Accreditation for learning and change: Quality and improvement as the outcome. The Journal of Continuing Education in the Health Professions 2005; 25:174-182.


2019 ◽  
Vol 2019 (5) ◽  
pp. 32-38
Author(s):  
Валентина Косенко ◽  
Valentina Kosenko ◽  
Алла Трапкова ◽  
Alla Trapkova ◽  
Светлана Тарасова ◽  
...  

The article conducts the analysis of system errors detected by Roszdravnadzor by conducting state quality control of circulating medicines, as well as weaknesses in pharmaceutical quality management systems of the manufacturers, that can influence the quality of manufactured drugs.


2020 ◽  
Vol 16 (3) ◽  
pp. 303-311
Author(s):  
Qi Huang ◽  
Chunsong Cheng ◽  
Lili Li ◽  
Daiyin Peng ◽  
Cun Zhang

Background: Scutellariae Radix (Huangqin) is commonly processed into 3 products for different clinical applications. However, a simple analytical method for quality control has rarely been reported to quickly estimate the degree of processing Huangqin or distinguish differently processed products or unqualified Huangqin products. Objective: To study a new strategy for quality control in the processing practice of Huangqin. Methods: Seven kinds of flavonoids that mainly exist in Huangqin were determined by HPLC-DAD. Chromatographic fingerprints were established to study the variation and discipline of the 3 processed products of Huangqin. PCA and OPLS-DA were used to classify differently processed products of Huangqin. Results: The results showed that baicalin and wogonoside were the main components in the crude and the alcohol Huangqin herb while baicalein and wogonin mainly existed in carbonized Huangqin. The results of mathematical statistics revealed that the processing techniques can make the quality of medicinal materials more uniform. Conclusion: This multivariate monitoring strategy is suitable for quality control in the processing of Huangqin.


2015 ◽  
Vol 3 (2) ◽  
pp. 1-7 ◽  
Author(s):  
Achin Jain ◽  
M P Venkatesh M P ◽  
Pramod T.M. Kumar

In Tanzania, Tanzania Food and Drugs Authority (TFDA), is a regulatory body responsible for controlling the quality,safety and effectiveness of food, drugs, herbal drugs, cosmetics and medical devices. The Authority has been ensuringsafety, efficacy and quality of medicines by quality control tests; in addition to other quality assessment mechanisms.The guidelines laid by TFDA have also emanated from commitment to democracy and gives strong emphasis to thefulfilment of the needs of the less privileged rural population.Tanzania is an emerging market; the pharmaceutical market is valued at over US$250 million, and is growing at anannual rate of around 16.5% and is expected to reach approximately US$550 billion in 2020. Currently, the market ishighly dependent on imports, which account for around 75% of the total pharmaceutical market.The procedures and approval requirements of new drugs, variations, import, export and disposal have been set up bythe TFDA, which help in maintaining quality of the drug products that are imported as well being produced locally 


1995 ◽  
Vol 23 (1) ◽  
pp. 61-73
Author(s):  
Coenraad Hendriksen ◽  
Johan van der Gun

In the quality control of vaccine batches, the potency testing of inactivated vaccines is one of the areas requiring very large numbers of animals, which usually suffer significant distress as a result of the experimental procedures employed. This article deals with the potency testing of diphtheria and tetanus toxoids, two vaccines which are used extensively throughout the world. The relevance of the potency test prescribed by the European Pharmacopoeia monographs is questioned. The validity of the potency test as a model for the human response, the ability of the test to be standardised, and the relevance of the test in relation to the quality of the product are discussed. It is concluded that the potency test has only limited predictive value for the antitoxin responses to be expected in recipients of these toxoids. An alternative approach for estimating the potency of toxoid batches is discussed, in which a distinction is made between estimation of the immunogenic potency of the first few batches obtained from a seed lot and monitoring the consistency of the quality of subsequent batches. The use of animals is limited to the first few batches. Monitoring the consistency of the quality of subsequent batches is based on in vitro test methods. Factors which hamper the introduction and acceptance of the alternative approach are considered. Finally, proposals are made for replacement, reduction and/or refinement (the Three Rs) in the use of animals in the routine potency testing of toxoids.


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