scholarly journals Assessing the Weld Quality of Manganese Steel

2013 ◽  
Vol 16 (4) ◽  
pp. 99-102
Author(s):  
Rastislav Bernát ◽  
Zoltán Záležák ◽  
Norbert Kecskés ◽  
Peter Blaško

Abstract The welding of alloy steels in practice is a difficult process in order to achieve mechanically or chemically resistant high-quality welds. In some cases, the weldability of many materials can be difficult or is not recommended because of poor and unsuitable properties of welded joints. In our research work, we investigate the selection of an appropriate welding method for welding the manganese steel HS 20 used at dynamically strained components in the car industry. The welding methods have been selected from accessible methods of the KARRER, s.r.o. Tovarníky industrial plant. Based on the comparable welding technologies MMA, MIG/ MAG and TIG, we tested and verified the quality of welds by means of selected weld tests. The quality of these welds, obtained by the abovementioned methods, was evaluated by weld tests in laboratory conditions of the Department of Quality and Engineering Technologies (Slovak University of Agriculture in Nitra) in cooperation with NDB, s.r.o. Bratislava and SES Tlmače, a.s. The aim of the research work is to set the most suitable and effective method of welding for given components from all the technologies available in the mentioned industrial plant. Based on relevant information, we also want to enrich the scope of knowledge about welding of manganese materials in order to make the welding process more effective.

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Sari Budi Moria Sembiring ◽  
Tridjoko Tridjoko ◽  
Haryanti Haryanti

Hatchery and culture technology of Humpback grouper has been developed. However,  sometimes it is still found constraint in sedd production and caused instability of production due to failure by many factors. Breeding program become necessary to provide seed with high quality and good genetic variation. Quantitative characteristic selection is one of breeding program to improve productivity in grouper aquaculture. The aim of this research was to produce good phenotyphic and genotypic quality of Humpback grouper candidate broodstock. Selection of Humpback grouper F1 and F3 was done based on quantitative characteristic (body length and weight) and genotyphic characteristic by using ramdom amplified polymorphism DNA (RAPD) method.  The results of conventional selection were found candidate broodstock of Humpback grouper F1 and F3 with body weight range from 170-210 g and 160-170 g consecutively.  Heterozygosity values of Humpback grouper analized by RAPD of F1 and F3 were 0.7940 and 0.7749 consecutively and it was not significantly different. This value emphasis that population of this F3 Humpback grouper was still good to grow for broodstock. Keywords: genetic variation, humpback grouper, F1, F3.


Author(s):  
R. Moritani ◽  
S. Kanai ◽  
H. Date ◽  
Y. Niina ◽  
R. Honma

<p><strong>Abstract.</strong> In this paper, we introduce a method for predicting the quality of dense points and selecting low-quality regions on the points generated by the structure from motion (SfM) and multi-view stereo (MVS) pipeline to realize high-quality and efficient as-is model reconstruction, using only results from the former: sparse point clouds and camera poses. The method was shown to estimate the quality of the final dense points as the quality predictor on an approximated model obtained from SfM only, without requiring the time-consuming MVS process. Moreover, the predictors can be used for selection of low-quality regions on the approximated model to estimate the next-best optimum camera poses which could improve quality. Furthermore, the method was applied to the prediction of dense point quality generated from the image sets of a concrete bridge column and construction site, and the prediction was validated in a time much shorter than using MVS. Finally, we discussed the correlation between the predictors and the final dense point quality.</p>


Author(s):  
Loreta Abakoka

Nora Ikstena’s “Mātes piens” (Mother’s Milk; published in English as Soviet Milk) is one of the novels in the book series “MĒS. Latvija, XX gadsimts” (We. Latvia. The 20th Century). It describes the difficulties that can arise in the mother-daughter relationship, describes the Soviet time’s environment and its impact on everyday life. The historical novel “Mātes piens” has been published in 25 countries, which means that this novel has been translated into many different cultures, which are less familiar with the mentality of the Latvian people and the USSR times in Latvia. Therefore, it is crucial how the text is translated or whether the style and the particular poetics of Nora Ikstena’s language in this novel are accurately reproduced. Therefore, the scientific research work “Quality of Translated Comparisons of Nora Ikstena’s “Soviet Milk” and “Молоко матери”” was developed. Comparisons requiring the translator to take into account both the content and the meaning of the words were analysed, as well as the aspect of language imagery and culture. The novel was translated into English by Margita Gailīts, and into Russian by Ludmila Nukņeviča. The events of the novel “Soviet Milk” take place from the end of the Second World War until the 1980s. The main character is a daughter, whose story is intertwined with the life stories of her mother and grandmother. The novel portrays the daughter’s struggle with her mother’s depression, which has deprived her of emotional intimacy with her mother since birth; the daughter continues to hope and gain her mother’s love, helping in times of crisis and ignoring several rejections. Although the translation process is very old, the question about the translation quality is still relevant. Using sources of information and gaining theoretical knowledge of the translation process, an error estimation method was developed that allows the word “quality” to be quantified. Literary translation is mostly separated from other translation types and put into a separate category, usually because the meaning of a literary work cannot be clarified in simple terms presented today. It is also difficult to analyse what the reader expects from the translation. Since there cannot be one right way of translating literature, the sense of the translator’s ethical duty to the author is the most important. However, this is very limited by how well the translator understands the author’s intentions and what is said and how much freedom the translator is given to change the text to find the most appropriate way to express the idea in the language. (Sager 1994) Four groups were divided by Juliane House’s theory (House 2014; House 2017) about overt errors. Text translation errors are divided into 2 categories – covert and overt. Covert errors are difficult to notice because, superficially, from a grammatical point of view, the sentence is correct, but its content is not logical or acceptable. The overt errors detected are obvious, constitute a systematic error. Overt errors are divided into 7 groups: 1 – not translated; 2 – a slight change in meaning; 3 – a significant change in meaning; 4 – distortion of meaning; 5 – breach of SL system; 6 – creative translation; 7 – cultural filtering. 64 comparisons in Latvian, 64 equivalents in Russian, and 55 equivalents in English were excerpted (9 comparisons were not translated). Translations of comparisons were divided into 4 groups: 1) accurately translated, 2) translations with minor changes, 3) culturally harmonized translations, 4) untranslated comparisons. Translations of comparisons that scored 5 points or more are considered qualitatively translated, given that there are no significant errors. There is no single fundamental criterion for the quality of a translation against which all translated texts can be judged. There are several definitions of quality translation, and quality is affected by many factors. The translations of comparisons in both foreign languages (English and Russian) are of high quality; they received high marks if they were analysed according to the error evaluation table because the maximum number of points that could be obtained was 6 points and no comparative translation was lower than 5 points. The Russian translation is more successful (comparative translations more often scored 6 points) than the English translation, which can be justified by the fact that the Russian language is historically and geographically a neighbor of the Latvian language, but the English language and culture are remote. Phraseological comparisons are translated literally and also more accurately into Russian; there are more of the same equivalents in the target culture. When evaluating comparisons that use the concepts of biblical story motifs or images of Greek mythology, they are mostly accurately translated into the target languages, as the target cultures are well acquainted with this religion and Greek mythology. One of the most important findings – not only literal translations are of high quality; it is much more important to express them in a way that is understandable to the target culture while maintaining the author’s writing style and the text’s main idea, paying attention to details.


Author(s):  
Rohit Rastogi ◽  
Devendra Kumar Chaturvedi ◽  
Mayank Gupta

This chapter applied the random sampling in selection of the subjects suffering with headache, and care was taken that they ensure to fulfill the International Headache Society criteria. Subjects under consideration were assigned the two groups of GSR-integrated audio-visual feedback, GSR (audio-visual)- and EMG (audio-visual)-integrated feedback groups. In 10 sessions, the subjects experienced the GSR and EMG BF therapy for 15 minutes. Twenty subjects were subjected to EEG therapy. The variables for stress (pain) and SF-36 (quality of life) scores were recorded at starting point, 30 days, and 90 days after the starting of GSR and EMG-BF therapy. To reduce the anxiety and depression in day-to-day routine, the present research work is shown as evidence in favor of the mindful meditation. The physical, mental, and total scores increased over the time duration of SF-36 scores after 30- and 90-days recordings (p<0.05). Intergroup analysis has demonstrated the improvement. EMG-audio visual biofeedback group also showed highest improvement in SF-36 scores at first and third month follow up. EEG measures the Alpha waves for the subjects after meditation. GSR, EMG, and EEG-integrated auditory-visual biofeedback are efficient in solution of stress due to TTH with most advantage seen.


Author(s):  
Kleopatra Alamantariotou

Recent statistics show that the World Wide Web has now grown to over 100 million sites: a phenomenal expansion in only 15 years (Mulligan 2007). It has been estimated that there are 100,000 sites offering health related information (Wilson 2002). As the amount of health information increases, the public find it increasingly difficult to decide what to accept and what to reject (Burgess 2007). Searching for information on the internet is both deceptively easy and the same time frustratingly difficult (Kiley 2002). The challenge for consumers is to find high quality, relevant information as quickly as possible. There has been ongoing debate about the quality of information aimed at patients and the general public and opinions differ on how it can be improved (Stepperd 1999). The purpose of this chapter is to provide a brief overview of the different perspectives on information quality and to review the main criteria for assessing the quality of health information on the internet. Pointers are provided to enable both clinicians and patients find high quality information sources. An understanding of these issues should help health professionals and patients to make effective use of the internet.


Author(s):  
S.S. Volkov ◽  
A.L. Remizov ◽  
A.S. Pankratov

This paper presents a mechanism of formation of a hard-to-weld polycarbonate joint by ultrasonic welding. The method utilizes internal and external friction occurring in the welded joint area on abutting surfaces due to shear vibrations of the end of the upper part relative to the lower part. A layer of the heated welded material is formed, localized by thickness, in which predominant absorption of the ultrasonic vibrations occurs, which allows one to obtain high-quality and durable welded joints without significant deformation due to the concentration of thermal energy in the welding zone. The effect of independent welding pressure on the strength of the welded joint of polycarbonate is considered. A new method of ultrasonic welding under the conditions of independent pressure is proposed. The method consists of dividing the static welding pressure into two components: the pressure of the acoustic contact in the zone of contact of the waveguide with the product, and the welding pressure that compresses the welded products, with the latter component being lower than the former. In order to obtain high-quality welded joints made of polycarbonate and to prevent displacement of the welded edges during the welding process relative to each other, a special preparation of the welded edges is developed, which allows one part to be moved vertically relative to the other during the welding process. It is established that the quality of welding depends on the speed of movement and the angle of cutting the edges.


2019 ◽  
pp. 64-67
Author(s):  
Konstantin A. Chupkin ◽  
Vera I. Terekhova ◽  
Anastasiya V. Konstantinovich

Relevance Currently, the requirements for modern tomato hybrids are increasing both from consumers and from producers. Modern tomato hybrids in extended circulation should yield at least 60 kg / m2, be distinguished by high quality of fruits, early ripeness, possess manufacturability, resistance to major diseases. Along with the traditional form of fruits, hybrids with original shape, color, taste and aroma are interesting for manufacturers. Methods The aim of the research was the variety study of indeterminant F1 hybrids of tomato breeding of the company "Gavrish" in JSC "Teplichnoye" of the Tambov region. Studies were conducted in 2017-2018 in the extended and summer-autumn turnover in the conditions of JSC "Teplichnoye" of the Tambov region in accordance with generally accepted recommendations for research with vegetable crops in greenhouses. The objects of the study in extended circulation were tomato hybrids: F1 Bao Bab, F1 Baloven, the F1 Torero hybrid was taken as a control. In the summerautumn turnover, a study was made of the rose hybrid – F1 Panthera; the Rosario F1 hybrid was used as a control; a hybrid with a plum-shaped fruit – F1 Armata, control – a hybrid F1 Lezghinka. Results According to the results of the study of tomato hybrids, the selection of the Gavrish company at the enterprise made the decision to grow it in extended circulation and increase the area under F1 Baloven, in the summer-autumn turnover under the F1 Panthera hybrid.


2018 ◽  
Vol 64 ◽  
Author(s):  
N.V. Bespalova ◽  
M.M. Gomola ◽  
T.I. Yakovleva

The article is devoted to the urgent theoretical and practical problems of the quality control of the chocolate confectionery products in cafes and restaurants. The authors analyze the modern approaches to the quality control of the chocolate confectionery products. The practical recommendations can be useful for the process of selection of the high quality raw materials. The criteria for the quality control of the chocolate confectionery products have been given. Some ways to improve the quality of he chocolate confectionery products have been discussed.


2021 ◽  
Vol 2 (Oktober) ◽  
pp. 12-21
Author(s):  
Ilham Rizqianto ◽  
Dedy Pradigdo ◽  
Ismanto Setyabudi

Abstract:  Tehnlogical advances to date have grown increasingly sophisticated technolgy, especially in robotic technogy which is currently developed to achieve work result that are make human work easier welding process with manual systems need to be switched to automatic systems. The mechanical concept of the arm that will be applied to Automatic Welding Carrier Machine by applying the mechanical concept of a 3D machine which is expected to increase mobility, working range of the tool as well as increasing the quality of automatic welding results. In this research, the method used is experimental research methods and simulations that aim to know the results of the analysis on the mechanics of the robot arm. The data generated after performing calculations with provide a load on the leadscrew of  the compressive stress that occurs i the leadscrew is , the voltage bending is  and the shear stress that occurs is , so that  the lead crew is said to be able to encourge maximum allowable amount of . The torque required by the motor drive to push the received load on the Z ( ) axis is equal to , then the selection of the nema23 stepper motor is stated very capable as a robotic arm mover because have torque . With the loading of the 2020 profile arm rod at  using ansys simulation, the maximum total deformation that may occur is , so that the 2020 profile rod can be said to be safe for use on Automatic Welding Carrier Machine.


OENO One ◽  
2012 ◽  
Vol 46 (4) ◽  
pp. 263
Author(s):  
Goran Zdunić ◽  
Irena Budić-Leto ◽  
Urska Vrhovsek ◽  
Iva Tomić-Potrebuješ ◽  
Edi Maletić

<p style="text-align: justify;"><strong>Aims</strong>:A four-year study (2007 through 2010) was carried out to determine agronomic, biological, and oenological characteristics of Dobričić grapevines so as to evaluate this cultivar and protect it from extinction.</p><p style="text-align: justify;"><strong>Methods and results</strong>: 38 characteristics from the OIV descriptor list were used to describe young shoot, mature leaf, cluster, and berry morphology of Dobričić grapevines. The dimensions of an average leaf were constructed from measured leaf variables. A typical Dobričić genotype at nine microsatellite loci is presented. ELISA analysis revealed high virus incidence and all samples tested were GLRaV-3 positive. The profile of different classes of polyphenols in Dobričić wine was determined using HPLC and spectrophotometry. The concentrations of polyphenols in Dobričić wine, especially anthocyanins, hydroxycinnamic acids and stilbenes, were high compared to major red wines reported in the literature. Descriptive sensory analysis was carried out to determine the aroma attributes describing a Dobričić monovarietal wine.</p><p style="text-align: justify;"><strong>Conclusion</strong>: Knowledge of the biodiversity of the grapevine cultivars of Croatia is still scant. This study provides for the first time ampelographic and oenological information on Dobričić grapevines and demonstrates its high quality potential.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: The results of the ampelographic characterization would be helpful in the identification and selection of Dobričić for cultivation in certain vine-growing areas. The outstanding quality of Dobričić makes it very promising for wine blending (colour improvement) and plant breeding purposes.</p>


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