ENHANCEMENT OF SCREEN FILM MAMMOGRAM UP TO A LEVEL OF DIGITAL MAMMOGRAM: EXPERIMENTAL ANALYSIS

2013 ◽  
Vol 13 (02) ◽  
pp. 1340004
Author(s):  
APARNA NARENDRA BHALE ◽  
MANISH RATNAKAR JOSHI

Breast cancer is one of the major causes of death among women. If a cancer can be detected early, the options of treatment and the chances of total recovery will increase. From a woman's point of view, the procedure practiced (compression of breasts to record an image) to obtain a digital mammogram (DM) is exactly the same that is used to obtain a screen film mammogram (SFM). The quality of DM is undoubtedly better than SFM. However, obtaining DM is costlier and very few institutions can afford DM machines. According to the National Cancer Institute 92% of breast imaging centers in India do not have digital mammography machines and they depend on the conventional SFM. Hence in this context, one should answer "Can SFM be enhanced up to a level of DM?" In this paper, we discuss our experimental analysis in this regard. We applied elementary image enhancement techniques to obtain enhanced SFM. We performed the quality analysis of DM and enhanced SFM using standard metrics like PSNR and RMSE on more than 350 mammograms. We also used mean opinion score (MOS) analysis to evaluate enhanced SFMs. The results showed that the clarity of processed SFM is as good as DM. Furthermore, we analyzed the extent of radiation exposed during SFM and DM. We presented our literally findings and clinical observations.

2014 ◽  
Vol 657 ◽  
pp. 881-885 ◽  
Author(s):  
Adrian Ioana ◽  
Augustin Semenescu ◽  
Cezar Florin Preda

The paper presents the main methods of technical-economical analysis of the quality of the metallic material production. The technical - economical analysis of the electric steels quality can be processed both for the product (electric steel) and for the company (electric steelworks). Both the analysis methods for products (A) and the ones for companies (B) are presented in comparison. There are mainly presented and analyzed a specific analysis models for steels elaboration in Electric Arc Furnace (EAF). The main elements specific to the two categories of analysis methods, including mathematical models. The quality of the steels elaborated in the EAF is a very important parameter. From this point of view, there is the need of analyzing the electric steels quality in various methods, including by technical-economical ones. The technical - economical analysis of the electric steels quality can be processed both for the product (electric steel) and for the company (electric steelworks). For the technical - economical analysis for the electric steels quality, we can use two methods: methods of the analysis for the products quality (MAPQ); methods of the analysis for the companys (MACQ).


2012 ◽  
Vol 706-709 ◽  
pp. 2146-2151
Author(s):  
Edyta Kardas

The quality of pig iron from the point of view of the customer, that is steel plant, is one of main factors affecting the quality and cost of steel production. Chemical composition and temperature of pig iron is among the parameters taking into consideration. The constancy of these parameters can result in steelmaking process on optimal level. The paper presents quantitative and quantitative analysis of pig iron produced in one of Polish steelworks. Analysis of the basic quality parameters of pig iron: the content of basic elements will be made. In the analysis statistical methods and quality tools will be applied.


Author(s):  
Aku Valtakoski ◽  
Juhana Peltonen ◽  
Mikko O. J. Laine

Virtual communities are an increasingly popular way to conduct business over the Internet. However, from the service provider’s point of view they pose special challenges. In particular, unless the provider itself engages in content or service provision, the service relies entirely on its members for provision of services. The members should thus be seen as resources for service provision. This type of networked service production system implies challenges in terms of service quality management and, subsequently, value creation for community members. This paper explores these issues by revisiting service marketing and service operations literature on service quality. Analysis of the literature indicates that firms facilitating virtual communities need to ensure the quality of their service by not only ensuring technical quality but also by nurturing the social aspects of the community that have an impact on the willingness of community members to provide service to each other.


2016 ◽  
Vol 12 (3) ◽  
pp. 789 ◽  
Author(s):  
Salvador Angosto Sánchez ◽  
José María López Gullón ◽  
Arturo Díaz Suárez

Purpose: The present research is based on assessing the participants’ perceived quality in two editions of a middle distance popular race, examining the different characteristics these type of events.Design/methodology/approach: The study was conducted through a perceived quality questionnaire for popular races breaking it down into the different factors identified in previous studies. The questionnaire was administered to participants in each of the editions by email.Findings: The results of this study indicated a decrease in the valuation of the perceived quality of the second edition, where the personal factor was the most valued in both editions. Women had a better opinion than men in both events and in all dimensions.Originality/value: The perceived quality analysis from the participants’ point of view will help the sports organizers and companies, public or private, engaged in the sporting events management to be more efficient and have better organization.


Philosophies ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 41
Author(s):  
Tosin P. Adewumi ◽  
Foteini Liwicki ◽  
Marcus Liwicki

This essay discusses current research efforts in conversational systems from the philosophy of science point of view and evaluates some conversational systems research activities from the standpoint of naturalism philosophical theory. Conversational systems or chatbots have advanced over the decades and now have become mainstream applications. They are software that users can communicate with, using natural language. Particular attention is given to the Alime Chat conversational system, already in industrial use, and the related research. The competitive nature of systems in production is a result of different researchers and developers trying to produce new conversational systems that can outperform previous or state-of-the-art systems. Different factors affect the quality of the conversational systems produced, and how one system is assessed as being better than another is a function of objectivity and of the relevant experimental results. This essay examines the research practices from, among others, Longino’s view on objectivity and Popper’s stand on falsification. Furthermore, the need for qualitative and large datasets is emphasized. This is in addition to the importance of the peer-review process in scientific publishing, as a means of developing, validating, or rejecting theories, claims, or methodologies in the research community. In conclusion, open data and open scientific discussion fora should become more prominent over the mere publication-focused trend.


Author(s):  
Rinova Budiman ◽  
Arif Imam Suroso ◽  
Irman Hermadi

BB-Pascapanen website is an official website of Balai Besar Pascapanen Bogor whose mission is to be able to integrate information as a research institute producing technology and innovation of agricultural post-harvest that supports the realization of food sovereignty and farmers' welfare. Based on the regulation and to accommodate those missions the website has been developed. The purpose of this study is to analyze the quality of the BB-Pascapanen website through a 2QCV3Q model. This model was chosen because it has a multi-party approach involving three actors in the development of a website, website owner, web developer and user which will make an analysis of website quality management implemented more detail. The results of the analysis show from institution and web developer point of view that the feasibility dimension needs performance improvement. While the other dimensions from user point of view that need to be improved are the dimension of identity (attributes of website uniqueness, Impressum distinctness), content (attribute of information detail and accuracy), services (attribute of correspondence feature), locations (attribute of availability of Link, URL easy to remember, easy searching in website, addresses written in website exists in google map, hotline), and usability (attribute of layout structure, orientation navigation and response, download time).


2015 ◽  
Vol 4 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Sourav Kumar Banik ◽  
Kamal Kanta Das ◽  
Md Aftab Uddin

Present study attempted to determine the microbiological quality of raw, pasteurized and UHT (Ultra High Temperature-processed) milk samples collected from different locations in Bangladesh. A total of 46 samples were studied including 22 raw milk samples from the local dairy markets and 24 different brands of pasteurized and ultrahigh temperature (UHT) treated milk manufactured in different beverage industries. The samples were examined for determining the total viable bacterial count (TVBC) and total coliform count (TCC). Results revealed that the raw milk samples were substandard in terms of TVBC and TCC. The range of TVBC and TCC in raw milk samples was 5.2×108 to 1.3×107 cfu/ml and 4.2×104 to 1.0×104 cfu/ml, respectively. On the contrary, the quality of pasteurized and UHT-treated milks was excellent. The TVBC range in pasteurized milk samples was from 1.8×103 to 1.1×102 cfu/ml, slightly lower than that recommended by the Bangladesh Standards and Testing Institution (BSTI). Interestingly sample numbers P-6, P-10 and P-12 of pasteurized milk samples had no growth at all both in terms of TVBC and TCC and none of the UHT processed milk contained any bacteria. So from the consumer point of view, both types of processed milk can be considered safe for consumption within the mentioned expiry date. DOI: http://dx.doi.org/10.3329/sjm.v4i1.22753 Stamford Journal of Microbiology, Vol.4(1) 2014: 5-8


Author(s):  
Aku Valtakoski ◽  
Juhana Peltonen ◽  
Mikko O. J. Laine

Virtual communities are an increasingly popular way to conduct business over the Internet. However, from the service provider’s point of view they pose special challenges. In particular, unless the provider itself engages in content or service provision, the service relies entirely on its members for provision of services. The members should thus be seen as resources for service provision. This type of networked service production system implies challenges in terms of service quality management and, subsequently, value creation for community members. This paper explores these issues by revisiting service marketing and service operations literature on service quality. Analysis of the literature indicates that firms facilitating virtual communities need to ensure the quality of their service by not only ensuring technical quality but also by nurturing the social aspects of the community that have an impact on the willingness of community members to provide service to each other.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mingfu Li

To improve the playout quality of video streaming services, several adaptive media playout (AMP) mechanisms were proposed in literature. However, all performance evaluations and comparisons for AMPs were made in terms of quality of service (QoS) metrics. As one knows, there may exist a trade-off between QoS metrics, such as buffer underflow and overflow performance. Thus, it is not sufficient to only evaluate the performance of AMPs in terms of QoS metrics. In this paper, we will evaluate and compare the performance of several AMPs from the aspect of quality of experience (QoE). Numerical results will show that some existing AMP systems do not perform better than the nonadaptive playout system from the point of view of overall QoE.


2021 ◽  
Vol 46 (4) ◽  
pp. 423-436
Author(s):  
Pawel Wojciechowski ◽  
Karol Krause ◽  
Piotr Lukasiak ◽  
Jacek Blazewicz

Abstract Implementing a large genomic project is a demanding task, also from the computer science point of view. Besides collecting many genome samples and sequencing them, there is processing of a huge amount of data at every stage of their production and analysis. Efficient transfer and storage of the data is also an important issue. During the execution of such a project, there is a need to maintain work standards and control quality of the results, which can be difficult if a part of the work is carried out externally. Here, we describe our experience with such data quality analysis on a number of levels - from an obvious check of the quality of the results obtained, to examining consistency of the data at various stages of their processing, to verifying, as far as possible, their compatibility with the data describing the sample.


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