Radiographic Quality Assessment of Welded Joints in Building Structures Produced According to Requirements of Standard En-1090-2, Quality Level “B +” / Radiograficzna Ocena Jakosci Złaczy Spawanych W Konstrukcjach Budowlanych Wykonywanych Według Wymagan Normy En-1090-2, Na Poziomie Jakosci „B+”

2013 ◽  
Vol 58 (1) ◽  
pp. 99-104
Author(s):  
K. Staniszewski ◽  
S. Sikora ◽  
J. Czuchryj
Keyword(s):  
Comparative Analysis ◽  
Quality Assessment ◽  
Welded Joints ◽  
Point Of View ◽  
Radiographic Examination ◽  
Quality Level ◽  
Building Structures

While assessing the quality of welded joints it may become necessary to establish various quality levels in the same joint or implement specific requirements for an already adopted quality level. The latter case can be observed in standard EN 1090-2, in which additional requirements were adopted for quality level B and thus a new quality level designated as B+ was created. Most of the additional requirements are concerned with imperfections detected by means of radiography. For this reason it was necessary to compare the principles governing the assessment of the quality of welded joints from radiographic examination point of view, according to the requirements of standard EN ISO 5817 and those of EN 1090-2. A conducted comparative analysis aims at optimising the aforesaid principles in relation to the requirements presented therein.

scholarly journals Comparative Analysis of the Importance of the Requirements of Passengers and Evaluating the Quality of Air and Bus Transport

2018 ◽  
Vol 236 ◽  
pp. 02006
Author(s):  
Vladimír Konečný ◽  
Róbert Berežný ◽  
Mária Kostolná ◽  
Pavel Šaradín
Keyword(s):  
Comparative Analysis ◽  
Quality Assessment ◽  
Quality Criteria ◽  
Point Of View ◽  
Individual Quality ◽  
Customer Requirements ◽  
Mode Of Transport ◽  
Bus Services ◽  
Bus Transport

The paper deals with the comparison of the importance of passengers’ requirements for the quality of the services provided and the quality assessment of air and bus transport. Individual quality criteria and their importance from the point of view of passengers vary depending on the mode of transport. It is also possible to observe the differing importance of quality criteria in relation to groups of passengers. The paper is processed comparison of the importance of individual quality criteria in air and bus services to the research in this area. In the paper is processed IPA matrix for air and bus transport. These are simple matrices that serve to highlight and understand important customer requirements.

Consumer perception vs sensory assessment of the quality of clothes of selected brands available on the Polish market

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Renata Salerno-Kochan ◽  
Paweł Turek
Keyword(s):  
Quality Assessment ◽  
Sensory Quality ◽  
Brand Names ◽  
Survey Method ◽  
Quality Level ◽  
Sensory Assessment ◽  
Content Type ◽  
Significant Difference ◽  
Consumer Assessment

PurposeThe aim of the study reported in this article was to establish whether the quality of clothes of a given brand is perceived and assessed by consumers at the same level. An additional purpose was to identify the features that characterize the quality of popular, among Polish young female consumers, clothing brands and to classify them according to their quality level (perceived and assessed).Design/methodology/approachThe article presents two approaches to consumer assessment of the quality of clothes: the survey method, in which the product quality was determined by 320 Polish female young respondents (19–25) based on their own previous experiences and impressions related to a particular clothing brand, and a direct assessment of shirts of selected brands using a sensory quality assessment method, a five-point hedonic scale with the verbal anchor (115 evaluators).FindingsThe research has revealed a significant difference between the perception of selected quality features of brands and the consumer assessment of the products. The perception maps developed based on the PROFIT analysis (PROperty FITting) as well as on cluster analysis provided interesting information about the situation of selected brands and their features in comparison with others and allowed to identify strong and weak features characterizing a given category.Research limitations/implicationsThis study has several limitations. First and foremost, the research results cannot be generalized to all consumers because they encompass the results from one national context and one population of respondents (young females). It should also be noted that the conducted research comprises only the most popular clothing brands available on the Polish market, in particular, the fast fashion segment brands. Furthermore, it would be advisable to carry out a sensory assessment of the quality of other clothing items offered under the brand names investigated.Practical implicationsThis research could be a valuable source of information for clothing company managers, thanks to which they could better manage their brand and its position on the market. When undertaking marketing activities consisting of building positive perceptions about the product, it is important to make sure that the product offers an attractive sensory experience. When real quality deviates from consumer perceptions about the quality, managers should take corrective actions to restore and even improve the brand image in the eyes of the consumer, as well as to ensure the brand and the products offered under it a stable position on the market.Originality/valueBy comparing two approaches to consumer quality assessment, discrepancies between declared and real (sensory) quality of clothes have been identified and the distinctive features that differentiate selected brands regarding their quality level have been indicated.

Quality assessment of drinking water in the communities of São Francisco do Conde, Baiacu, Santo Amaro and Cachoeira

2021 ◽  
Author(s):  
JOSEINA MOUTINHO TAVARES ◽  
Anderson Silva de Oliveira ◽  
Paulo Moutinho Andrade de Souza ◽  
Walter da Silva Junior
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Assessment ◽  
Continuous Monitoring ◽  
Point Of View ◽  
Chlorine Content ◽  
Contaminated Water ◽  
Public Agencies ◽  
Total Coliforms

This work aims to evaluate the quality of drinking water in the communities of Baiacu, Sao Francisco do Conde, Santo Amaro and Cachoeira. It was verified that in some places of Santo Amaro and Sao Francisco do Conde, from the microbiological point of view, it is not appropriate for consumption, because it was found that the presence of total coliforms in 50% of the samples and that the chlorine content is below the values indicated by the standards in 75% of the analyzed samples. Thus, the consumption of contaminated water can cause diseases, so it is recommended cleaning of residential reservoirs, maintenance in pipes periodically, as well as the need for continuous monitoring of water quality and the intense participation of public agencies in these actions. Through these actions and the active participation of the population, one can preserve the environment and the lives of all those who transit in the communities of the Bay of All Saints

scholarly journals A comparative analysis of non­reference assessment methods

Connectivity ◽  
2020 ◽  
Vol 148 (6) ◽  
Author(s):  
V. V. Grebenyuk ◽  
◽  
O. A. Dibrivnyy ◽  
O. V. Nehodenko
Keyword(s):  
Comparative Analysis ◽  
Image Quality ◽  
Image Quality Assessment ◽  
Excellent Result ◽  
Video Quality ◽  
Mean Value ◽  
Performance Comparison ◽  
Quality Level ◽  
Reference Methods

A comparative analysis of functions to assess image quality in the absence of a sample: no-reference (NR) measure or NR-type methods. The availability of NR-methods is very important for assessing the quality of streaming video such as television, game streaming, online conferences, web-chatting, etc. (because on the side of the recipient of the video there is no standard for quality comparison) and assessing the results of transformations aimed at improving video, and choosing the parameters of these transformations (brightness change, semitone and others). The human visual system (HVS) is able to visually assessing video quality, but If required to visually assess the quality of dozens or hundreds of videos or ranking them by quality level it will be needed a huge amount of time. Six types of experiments were performed to analyze the correlation of calculated quantitative estimates with visual assessments of the quality of the tested video files. Three of them are fundamentally new: comparing video after gamma correction and changing the contrast with different parameters, as well as blurring, which may be the result of defocusing the camcorder. A hybrid method (or reduced-reference (RR) measure) and a full-reference (FR) measure or FR-type method were also added for comparison. It has been experimentally shown that none of the studied non-reference methods of image quality assessment is universal, and the calculated assessment cannot be converted into a quality scale without taking into account the factors influencing the distortion of image quality. Moreover, all NR-type methods could not cope with the experiment of changing the contrast, believing that the best result is the most contrasting image but the original. Instead, the reference methods showed an excellent result (except one, which showed partial ineffectiveness). Also, it has been shown performance comparison between methods. It is shown that most of the studied methods calculate local estimates for each frame, and their arithmetic mean value is an estimate of the quality of the entire video file. If the video is dominated by large areas of uniform evaluation, methods of this type may give incorrect quality evaluations that do not coincide with the visual evaluations.

scholarly journals PROFESSIONAL COMPETENCE OF FUTURE SPECIALISTS IN INFORMATION AND COMMUNICATION TECHNOLOGIES: QR CODING IN STUDENT LEARNING

2019 ◽  
Vol 5 (57) ◽  
pp. 33-35
Author(s):  
A. Hafiiak ◽  
O. Shefer ◽  
E. Borodina ◽  
S. Alyoshin
Keyword(s):  
Information And Communication Technologies ◽  
Professional Competence ◽  
Communication Technologies ◽  
Point Of View ◽  
Quality Level ◽  
It Education ◽  
Information And Communication ◽  
Student Training ◽  
Definition Of

The article explores modern information and telecommunication technologies, which are the basis of information processes in education. The fundamentals of improving the quality of student training from the point of view of the development of a vocational education system are investigated. The authors explore the definition of an innovative educational environment. It is proved that professional IT education is the basis for improving its quality level and has certain advantages over other types of knowledge, providing flexibility due to modern technological features, including the use of QR coding information.

scholarly journals Comparative analysis of balancing of V6 engines with common- and split-pin crankshafts

2014 ◽  
Vol 156 (1) ◽  
pp. 3-12
Author(s):  
Ryszard MOSAKOWSKI
Keyword(s):  
Comparative Analysis ◽  
Point Of View ◽  
Reciprocating Motion ◽  
Bank Angle ◽  
Moments Of Inertia ◽  
Cylinder Bank ◽  
Mathematical Relation ◽  
Inertia Forces ◽  
Mathematical Relations

An analysis of balancing of V6 engines equipped with split-pin crankshafts with any cylinder bank angle based on the mathematical relations derived in the paper was carried out. A comparison of the quality of their balancing with engines equipped with common-pin crankshafts was also carried out. The bank angle ranges beneficial for balancing of moments of inertia forces in reciprocating motion were determined. A mathematical relation on the optimum value of the main counterweights in the function of the cylinder bank angle was derived as well. The advantages of the split-pin crankshafts from the point of view of balancing were also indicated also.

scholarly journals Methods of assessing the quality of services: comparative analysis

2016 ◽  
Vol 4 (3) ◽  
pp. 374-382
Author(s):  
Н Ватолкина ◽  
N Vatolkina
Keyword(s):  
Comparative Analysis ◽  
Service Quality ◽  
Quality Assessment ◽  
Quality Evaluation ◽  
Quality Of Services ◽  
Methods Development ◽  
Methods Of Evaluation ◽  
Different Types ◽  
Service Quality Evaluation

The article presents a review of methods for assessing service quality on the basis of author´s classification in accordance with the evaluation subject and the purpose of the method. Author gives brief description of the main groups of methods of evaluation of components of service quality, evaluation of customer experience and evaluation of customer satisfaction; provides their comparative characteristics taking into account the evolutionary nature of the methods development. The author outlines specific features of quality assessment of service quality and makes the conclusion that general methods should be adapted to the services of different types and nature.

scholarly journals Chondroitin sodium sulfate – impurities and standardization problems (literature review)

2019 ◽  
Vol 18 (1) ◽  
pp. 25-36
Author(s):  
Е. L. Komarova ◽  
S. V. Chernova ◽  
K. V. Kasumova ◽  
M. S. Tabachnaya ◽  
L. V. Оvsyannikova ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Comparative Analysis ◽  
Chemical Compounds ◽  
Animal Tissue ◽  
Point Of View ◽  
Raw Material ◽  
Technological Processing ◽  
Normative Documentation ◽  
Degree Of Purification

Modern research in the field of chondroitin sulfate chemical composition is considered. Clinical efficiency and safety are shown to depend on the nature and quality of the raw material used, ways of its technological processing and the degree of purification. The composition of chemical compounds (CC) variable is stated to represent the mixture of 2 main isomeric forms: chondroitin 4-sulfate and chondroitin 6-sulfate. In the animal tissue chondroitin 4-sulfate dominates, the content of which is 70 %; the content of chondroitin 6-sulfate is 30 %. The cartilages of sharks and other hydrobionts have got low content of chondroitin 4-sulfate (10 %) and chondroitin 6-sulfate 80 %. Complex polymeric structure and instability of CC composition make the problem of drug standardization on its basis complicated. The impurities encountered in substances are considered. The impurities are divided into several groups: related impurities, technological or mechanical ones uncharacteristic of CC. Comparative analysis of requirements for raw material from the point of view of normative documentation of different countries is carried out and their considerable difference is detected. It has been shown that for raising pharmacological activity the producer of drugs must take into account all the parameters of CC including the structural composition, molecular weight and presence of impurities.

scholarly journals Environmental quality of marginal territories using comparative analysis of fluctuating asymmetry methods and determining the area of leaf damage

2020 ◽  
Vol 210 ◽  
pp. 02009
Author(s):  
Aleksander Lugovskoy ◽  
Sergey Gildenskiold ◽  
Tatjana Krylova ◽  
Nina Fomina
Keyword(s):  
Comparative Analysis ◽  
Fluctuating Asymmetry ◽  
Life Support ◽  
Point Of View ◽  
Leaf Damage ◽  
Territorial Development ◽  
Leisure Facilities ◽  
Favorable Conditions ◽  
And Control

The paper assess marginal and control territories within the Moscow Metropolitan area using a comparative analysis of fluctuating asymmetry method and determining the area of leaf damage to obtain a comprehensive assessment of the territory from the point of view of human habitation with minimal comfort parameters within the sensitivity of plants. The results of the combined analysis of two methods are obtained, which confirm the possibility of their use and the representativeness of the results obtained in assessing the comfort of the environment. The assessment of the quality of the environment in marginal territories was made by quantitative and qualitative indicators for the rational use of land resources, their involvement in economic turnover with the creation of favorable conditions for ensuring the flow of social processes of territorial development and comfortable life support of the population. It was proposed that socially-oriented infrastructure, leisure facilities, and social and cultural facilities have been formed in these territories with a sufficiently large and diverse number of types and forms of employment for the population, which should become the basis for the development of marginal territories.

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