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Journal articles on the topic 'Metalwork technology'
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Rasheed. A, Dawodu, Ogunbote Shefiu, and Adegunle Felix Omotayo. "Implementation of Suitable Metalwork Technology Workplace in Tertiary Institutions in Nigeria: Challenges and Recommendations." Eduphoria-An International Multidisciplinary Magazine 02, no. 04 (2024): 20–25. http://dx.doi.org/10.59231/eduphoria/230414.
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Metalwork technology is a crucial component of vocational and technical education, particularly in tertiary institutions. The discipline equips students with skills in welding, machining, and fabrication. In Nigeria, the importance of technical and vocational education in general, and metalwork technology in particular, has been highlighted in national development plans. This metalwork field plays a pivotal role in driving industrialization, manufacturing, and the development of skilled labor for the country’s growing economy. However, the metalwork technology workspace in many Nigerian tertiary institutions often faces several challenges, from outdated equipment to poor funding, all of which hamper the effective training of students. This article examines the current state of metalwork technology workplaces in Nigerian institutions, highlights key challenges, and proposes recommendations for improvement. This paper seeks to address the following questions: What are the major challenges confronting metalwork technology workplaces in tertiary institutions in Nigeria? What are the implications of these challenges for industrial growth? What strategies can be employed to overcome these challenges and improve the effectiveness of metalwork technology training in Nigerian institutions
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Adamu, Yusuf Sawaba, Hassan Bello, Muhammad Muhammad Inti, and Ali Idris. "Effects of Problem-Based Learning on the Students’ Retention of Pre-Service Technology Teachers in Foundry in North-West Nigeria." International Journal of Research and Innovation in Social Science VIII, IIIS (2024): 2619–27. http://dx.doi.org/10.47772/ijriss.2024.803190s.
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This research investigates effects of Problem-Based Learning (PBL) on the retention level of pre-service metalwork technology teachers in metal foundry in North-West Nigeria. Two objectives and two research questions guided the research. The study employs a quasi-experimental design with pre-test and post-test measures. The research was carried out in the North Western States of Nigeria, targeting a population of 522 pre-service metalwork technology teachers. Intact classes of the sampled institutions were used for the teaching. Simple random Sampling technique was used to select four institutions; two colleges of education and two polytechnics as samples for the study. All the institutions have the characteristics being sought for the study (similarity in operation and curriculum content). Data was collected through teacher-made Performance Test using pre-test, post-test and post-posttest. The findings reveal a statistically significant difference in post post-test mean Students’ retention between pre-service metalwork technology teachers exposed to problem-based learning and those instructed through traditional lecture methods. The study also revealed that there was no statistically significant difference in the mean retention level of pre-service metalwork technology Teachers taught metal foundry using problem-based learning approach in college of education and polytechnic. Therefore, the findings underscore the potential of problem-based learning to enhance Students’ retention among pre-service metalwork technology teachers. Finally, the study suggests that the adoption of problem-based learning methods can significantly improve the Students’ retention of pre-service metalwork technology teachers. Instructors are encouraged to explore and incorporate problem-based learning techniques into their teaching methodologies, creating dynamic and interactive classroom experiences.
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P.C., Okwelle, Idibia C.N., and Ajie P.M. "Milling Machine Operational Skills Required by Metalwork Facilitators for Effective Production of Ready-To-Work Graduates in Tertiary Institutions in Rivers State, Nigeria." Advanced Journal of Science, Technology and Engineering 2, no. 1 (2022): 93–101. http://dx.doi.org/10.52589/ajste-oycabman.
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The study investigated milling machine operational skills required by metalwork facilitators for effective production of ready-to-work graduates in tertiary institutions in Rivers state. The study adopted descriptive survey design. The population of the study was 174 respondents which comprised 67 metalwork facilitators (43 lecturers and 24 instructors) and 107 final year students of Metalwork/Mechanical Technology department. No sampling was done as the population was manageable; therefore, census technique was adopted. Two research questions and two hypotheses were formulated. A survey questionnaire was developed to elicit responses from the respondents. The instrument was validated by two experts in the Department of Vocational and Technology Education, Rivers State University, Port Harcourt. The reliability of the instrument was established using Cronbach Alpha Reliability Coefficient which yielded a reliability index of .84. Statistical Mean was used to answer the research questions while standard deviation was used to determine the homogeneity in the responses of the respondent and z-test was used to test the null hypothesis at .05 significance level. The study found among others that skills prepare metalwork facilitators to contribute meaningfully to their area of specialty, help individuals to be outstanding, and prepare graduates to be ready-to-work. It was recommended that from time to time, there should be on-the-job training for all the skills facilitators in metalwork technology on the operation of the various machines in the workshop to enable them contribute meaningfully to student’s skills acquisition in the area of study; accuracy in machine operation should also be enacted as criteria for metalwork facilitators promotions, to effectively produce ready-to-work metalwork graduates in tertiary institutions in Rivers state.
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Bakare, Shola F., Abdul Latib Azlan, Samari Rosmah, Kamin Yusri, Sukri Saud Muhammad, and Fadila Amin Nor. "The non-technical skills needed by graduates of technical colleges in metalwork technology." International Journal of Evaluation and Research in Education (IJERE) 8, no. 4 (2019): 654–58. https://doi.org/10.11591/ijere.v8i4.20308.
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This study centered on the views of the professionals about the non-technical skills considered crucial as recruitment prerequisite among graduates of metalwork technology from technical and vocational institutions in Nigeria. It will also examine the possibility of integrating these skills into the curriculum. The study made use of the survey research design. One research question guided the study. The population for the study comprised metalwork technology professionals in Ogun State, Southwestern Nigeria. A 36-item questionnaire was the instrument used for data collection. The instrument was validated by experts from the University of Lagos (UNILAG). The reliability of the instrument was determined using Cronbach Alpha and the reliability index which stood at 0.79. The data collected were analysed using mean statistic and standard deviation. The study revealed that professionals placed great importance on communication skills, problem-solving skills, teamwork skills and self-management qualities among others, as important recruitment prerequisite among graduates of metalwork technology from technical and vocational institutions in Nigeria. The study concludes with the suggestions that non-technical skills should be integrated into the curriculum particularly in the field of metalwork technology in technical colleges. Students should be familiar with the employers’ recruitment criteria while they are still in schools in order to equip them with the necessary skills needed for employment.
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Shola. F, Bakare, Azlan Abdul Latib, Rosmah Samari, Yusri Kamin, Muhammad Sukri Saud, and Nor Fadila Amin. "The non-technical skills needed by graduates of technical colleges in metalwork technology." International Journal of Evaluation and Research in Education (IJERE) 8, no. 4 (2019): 654. http://dx.doi.org/10.11591/ijere.v8i4.20308.
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<span>This study</span><span>center</span><span lang="IN">ed</span><span> on the views of the professionals about the non-technical skills considered crucial as recruitment prerequisite among graduates of metalwork technology from technical and vocational institutions in Nigeria. It will also examine the possibility of integrating these skills into the curriculum. The study made use of the survey research design. One research question guided the study. The population for the study comprised metalwork technology professionals in Ogun State, Southwestern Nigeria. A 36-item questionnaire was the instrument used for data collection. The instrument was validated by experts from the University of Lagos (UNILAG). The reliability of the instrument was determined using Cronbach Alpha and the reliability index which stood at 0.79. The data collected were analysed using mean statistic and standard deviation. The study revealed that professionals placed great importance on communication skills, problem-solving skills, teamwork skills and self-management qualities among others, as important recruitment prerequisite among graduates of metalwork technology from technical and vocational institutions in Nigeria. The study concludes with the suggestions that non-technical skills should be integrated into the curriculum particularly in the field of metalwork technology in technical colleges. Students should be familiar with the employers’ recruitment criteria while they are still in schools in order to equip them with the necessary skills needed for employment. </span>
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Maduabuchukwu, AJIE, Prince, OJOBAH OJOBAH, and Lucky Obulor. "Effects of Self-Instructionalmultimedia Packageon Students’ Academic Performance Inmetalwork Technology Education Programmeinthe21st Century Intertiary Institutionsin Rivers State." International Journal of Advances in Engineering and Management 7, no. 2 (2025): 491–97. https://doi.org/10.35629/5252-0702491497.
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The study investigated effect of self-instructional multimedia package on students’ academic performance in metalwork technology education programmein the 21st century in tertiary institutions in Rivers State. A quasi-experimental design guided the study. The population of the study comprised 198 Year I-IV metalwork students in the three tertiary institutions in Rivers State that offer Metalwork technology. Year III students with a population of 69was selected. Two research questions and hypotheses were answered and tested at .05 level of significance. The researcher collected data for the study using teacher made test.The instrument was validated by two lecturers in the department of Industrial Technical Education, Ignatius Ajuru University of Education, Port Harcourt. The reliability of the instrument was established using test re-test method. The data achieved were analyzed with PPMC. The coefficient achieved was .84. Analysis of Covariance (ANCOVA) statistics were used to test the hypotheses at .05 levels of significance. Based on the findings of the study, it was concluded that experimental group taught with self-instructional multimedia package performed better than the control group taught with whiteboard. It was recommended that government should train teachers on how to develop and use selfinstructional multimedia in addition to white board teaching methodsince it has proven to be effective.
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Akegbejo, David A., Daniel A. Ikuesan, and Nzubechukwu Oyeka. "Impact of Prior Knowledge of Engineering Materials by Students of Metalwork Technology Education for Effective Practical Work." International Journal of Trend in Scientific Research and Development 3, no. 2 (2019): 451–54. https://doi.org/10.31142/ijtsrd21409.
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The purpose of this study was to evaluate the impact of prior knowledge of engineering material by students of metalwork technology education for effective practical work. To achieve this objective, a research question was used to guide the study and a hypothesis was formulated and test at 0.05 level of significance. Survey research design was considered suitable for this study. The study was carried out in Adekunle Ajasin University, Ondo State and Ekiti State University, Ado Ekiti. The population of this study comprised all 55 final year students and 13 lecturers in vocational and Technical Education Department. There was no sample all enter population of 68 was used. The instrument for data collection was a self structured questionnaire, which contained seventeen items. The result from the analysis of data collected indicated that there was no significance difference between the mean ratings of the group of respondents on impact of prior knowledge of engineering material of lecturers and students in all the seventeen items on knowledge of engineering materials in university. The findings of the study showed that the respondents agreed that the metalwork students need all 17 knowledge of engineering material identified. Based on findings and discussion, conclusions were drawn and recommendations made, as the knowledge of engineering materials should be a one of core course in technical education in university. Akegbejo, David A. | Ikuesan Daniel A. | Oyeka Nzubechukwu "Impact of Prior Knowledge of Engineering Materials by Students of Metalwork Technology Education for Effective Practical Work" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-2 , February 2019, URL: https://www.ijtsrd.com/papers/ijtsrd21409.pdf
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A., Akegbejo, David, Ikuesan Daniel A., and Oyeka Nzubechukwu. "Impact of Prior Knowledge of Engineering Materials by Students of Metalwork Technology Education for Effective Practical Work." International Journal of Trend in Scientific Research and Development Volume-3, Issue-2 (2019): 451–54. http://dx.doi.org/10.31142/ijtsrd21409.
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Frenkel’, G. Ya. "Protection of metalwork from corrosion by polyurethane coatings." Hydrotechnical Construction 31, no. 9 (1997): 583–85. http://dx.doi.org/10.1007/bf02767239.
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Madeley, N. Jane, Chinnasamy Senthil Kumar, and Alia Alenezi. "Complications of Calcaneal Osteotomy: Are They Equal Between Different Osteotomy Types?" Foot & Ankle Orthopaedics 7, no. 1 (2022): 2473011421S0033. http://dx.doi.org/10.1177/2473011421s00332.
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Category: Hindfoot; Other Introduction/Purpose: Calcaneal osteotomy is regularly performed as part of the surgical management of a number of conditions. Complication rates are thought to be low, however are these risks the same for different osteotomy types? In our institution a Lateralising Closing wedge osteotomy is performed for Cavus foot correction and Varus alignment with instability, whilst Lateral Column Lengthening Osteotomy and Medialising Displacement Calcaneal Osteotomy (MDCO) are performed for Pes Planus with and without forefoot abduction respectively. In severe Pes Planus deformities both may be utilised. The purpose of this study was to examine complication rates in each group. Methods: This is a retrospective case series of consecutive calcaneal osteotomies performed at our institution between January 2010 and December 2019. The primary outcome measures were healing of the osteotomy, metalwork removal and any other reported complications related to the calcaneal osteotomy including infection and wound problems. Patient demographics, associated procedures, indication for surgery, incision, and fixation method were also recorded. Results: There were 141 patients in the series. 77 patients underwent a lateralising osteotomy, 55 underwent MDCO and 12 Lateral column lengthening (LCL) with opening wedge osteotomy of the anterior process of the Calcaneus. Fixation was with cannulated screws, or specific purpose locking plates. Patients were followed up for a minimum of three months and discharged from follow-up once a satisfactory level of recovery was reached..One non-union was seen in each of the Lateralising, MDCO and LCL groups. Delayed union was seen in 3 lateralising osteotomies, and 1 MDCO. Metalwork irritation requiring surgery for metalwork removal was 6.5% (4 with screws, 1 plate), 9.1% (all screws) and 0% for Lateralising, MDCO and LCL osteotomies respectively. Wound problems or sural nerve irritation were noted in 11.7%, 3.6% and 8.3% of Lateralising and MDCO and LCL osteotomy respectively. 1 superficial infection was seen in the Lateralising osteotomy group Conclusion: One non-union was seen in all groups, with a trend for bone healing to be slower in those having lateralising procedures. Patients should be advised of this possibility if undergoing calcaneal osteotomy. Wound problems and sural nerve irritation were also more common with lateralising procedures. Metalwork removal due to hardware irritation was common (7% overall), and fixation method rather than osteotomy type appears to influence this with 9 cases following cannulated screws and 1 following lateral locking plate fixation. Screw fixation is associated with higher hardware removal rates.
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Obe, P. I., A. O. Ezeama, T. C. Ogbuanya, and E. O. Ede. "Development and validation of competency-based instrument for assessing mechanical metalwork technology operations of technical colleges." Nigerian Journal of Technology 38, no. 4 (2019): 884. http://dx.doi.org/10.4314/njt.v38i4.10.
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K. Obiyai (Ph.D), Koku, and Engr Ayibakuro Songi. "Application of Metalwork Technology Education Skills in the Fabrication of Vertical Palm Kernel Nut Cracking Machine." Scientific Review, no. 101 (February 8, 2024): 1–8. http://dx.doi.org/10.32861/sr.101.1.8.
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The study examined the role of Vocational Skills in the construction of a Vertical Palm Kernel nut cracking machine. Descriptive research design was used. The population was Nineteen (19), which comprises of Five (5) instructors and Fourteen (14) NO 2 Mechanical Engineering Students of Federal Polytechnic Ekowe, Bayelsa State. The whole 19 was also used as the sample because it is relatively small; a questionnaire titled “Application of Vocational Skills in the Fabrication of Vertical Palm Kernel Nut Cracking Machine Questionnaire (AVSFVPKNCMQ)” was used for the data collection. Five research questions and hypothesis were raised for the study. Mean and standard deviation was used to analyze the data collected while t-fest was used to test the two-null hypothesis at 0.05 level of significance. Findings revealed that Vocational Skills such as Measuring Filling Cutting, Welding and Assembling are needed by students for the fabrication of the Vertical Palm Kernel nut cracking Machine. It also revealed the problems associated with cracking and supply-demand gap of Palm Kernel. It was therefore, recommended that government and Private Fabricating Firms should go into full production of cracking machines to aid in mass production of cracked shells and nuts from palm fruits to meet the needs of Pharmaceutical, Cosmetics as well as Food Processing Industries.
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Babenko, Leonid. "The Pectoral of Tovsta Mohyla: Understanding the Gold Insignia of Ancient Scythia." Arts 12, no. 4 (2023): 136. http://dx.doi.org/10.3390/arts12040136.
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The gold pectoral from Tovsta Mohyla is a masterpiece of Greco-Scythian metalwork, the most prominent and esteemed of all the finds uncovered in 260 years of excavating the Scythian kurgans. After the pectoral was discovered on 21 June 1971 by B. Mozolevsky, dozens of other scientists joined him in studying it. The researchers have raised a wide range of interesting questions revolving around the origin of the pectoral, the technology involved in its production, its stylistic features, and the interpretation of its depictions. However, so far, none of these questions has been answered definitively. This article provides an overview of the author’s recent interdisciplinary research on the Tovsta Mohyla pectoral.
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Ahmad, Ahmad, Muhammad Danjuma, Muhammad Muhammad Inti, and Samaila Hamza. "Assessment of Safety Skills Possessed by Metalwork Technology Education Students in Nigeria Certificate in Education Awarding Institutions in Kaduna State, Nigeria." International Journal of Research Publication and Reviews 5, no. 5 (2024): 11079–84. http://dx.doi.org/10.55248/gengpi.5.0524.1402.
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Francis, Bakare Shola, Azlan Abdul Latib, Evarina Amiron, Kamalularifin Subari, and Yusri Kamin. "Measuring the Importance of Non-Technical Skills for Integration into Metalwork Technology Curriculum Using Structural Equation Modelling." International Journal of Instruction 13, no. 3 (2020): 317–28. http://dx.doi.org/10.29333/iji.2020.13322a.
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Onochie, Elliot I., Nelson Bua, Amit Patel, et al. "Functional Outcomes of Dorsal Bridge Plating for Lisfranc Injuries with Routine Metalwork Retention: A Major Trauma Centre Experience." Foot & Ankle Orthopaedics 7, no. 1 (2022): 2473011421S0038. http://dx.doi.org/10.1177/2473011421s00383.
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Category: Midfoot/Forefoot; Trauma Introduction/Purpose: Lisfranc injuries represent a significant disruption to the complex articulations of the midfoot. Many of these injuries are unstable with displacement and articular incongruity. This necessitates surgical intervention with the primary goals of anatomic reduction and midfoot stability. Evidence around surgical treatments for Lisfranc complex injuries is limited by heterogeneity in outcome measures and small patient numbers. Dorsal bridge plating is a well-recognized surgical technique with the benefits of rigid stability and joint preservation. The primary aim of this study is to assess the midterm functional outcomes for patients treated with this technique at our major trauma centre. Additionally, we assess the complication profile and review for risk factors that influence the functional outcome. Methods: Eighty-five adult patients were identified as undergoing open reduction and dorsal bridge plate fixation for displaced, unstable Lisfranc injuries at our major trauma centre between January 2014 and January 2018. Supplemental Kirschner wire stabilization was used for the lateral column if necessitated by the injury pattern. Importantly, metalwork was not routinely removed. A retrospective review of case notes and imaging was conducted in order to collate demographic data including co- morbidities and smoking status. Patient-reported outcome measures were collected at final follow-up, with a minimum follow-up of 24 months. The Manchester-Oxford Foot Questionnaire summary index (MOXFQ-Index) was the primary patient-reported outcome. The American Orthopaedic Foot & Ankle Society (AOFAS) midfoot scale, complications, and all-cause re-operation rates were secondary outcome measures. Univariate and multivariate analyses were used to identify risk factors associated with poorer functional outcomes. Results: The mean follow-up in this study was 40.8 months (24 - 72). 61/85 patients (72%) had high-energy or crush mechanisms of injury. The mean MOXFQ-Index was 27.0 (SD 7.1). The mean AOFAS score was 72.6 (SD 11.6). 48/85 patients (56%) had injury patterns that included an intra-articular fracture and this was associated with poorer outcomes, with worse MOXFQ and AOFAS scores (both p<0.001). There were trends towards poorer outcomes in diabetic patients (p=0.07), those patients needing supplementary Lisfranc or intercuneiform screws (p= 0.39 and 0.45 respectively), and as a greater number of tarsometatarsal joints were stabilized (p=0.12). Overall, eighteen patients (21%) underwent removal of metalwork for either prominence or stiffness. Female patients were more likely to require metalwork removal (OR 3.89, 95% CI 1.27 to 12.0, p=0.02). Eight patients (9%) required secondary arthrodesis for post-traumatic osteoarthritis. Conclusion: This is the largest series of Lisfranc injuries treated with dorsal bridge plate fixation reported to-date. Bridge plating is safe and effective in stabilizing this complex midfoot injury. The presence of an intraarticular fracture is a poor prognostic indicator. This is the first study to report on outcomes with routine retention of bridge plates. 21% of patients required removal of metalwork and this was more likely in female patients. Patient-reported outcomes and secondary arthrodesis rates were comparable to the existing literature in which bridge plates are routinely explanted. This suggests that routine removal may not be a necessity.
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CONRAD, SEBASTIAN. "“NOTHING IS THE WAY IT SHOULD BE”: GLOBAL TRANSFORMATIONS OF THE TIME REGIME IN THE NINETEENTH CENTURY." Modern Intellectual History 15, no. 3 (2017): 821–48. http://dx.doi.org/10.1017/s1479244316000391.
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When European clocks first arrived in seventeenth-century Japan they generated a commotion. The highly complex but also very precise instruments had been brought to Nagasaki by the Dutch East India Company that monopolized the sparse and highly regulated trade between Japan and Europe for more than two centuries. As an expression of the technological sophistication achieved in early modern Europe, mechanical clocks were hi-tech products of their time. They operated with a spring to store the energy, and their making required highly developed skills in casting and metalwork. The new technology made it possible to emancipate the measurement of time from sunshine and to achieve an evenness of temporal rhythms, not only during the day, but also at night.
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Ibragimov, Aman I. "SYNCRETISM OF THE STEPPE WORLDVIEW AND THE AESTHETICS OF INFORMATION TECHNOLOGIES IN THE WORKS OF ILYA KAZAKOV." Arts education and science 3, no. 40 (2024): 130–39. http://dx.doi.org/10.36871/hon.202403130.
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This article examines the symbolic interrelation between four main elements — silver/metal, stone, wood, bone — and their interpretation in the creative work of the renowned Kazakh jeweler Ilya Kazakov. The author argues that these concepts not only symbolise various aspects of the steppe universe, but also form a syncretic union with the aesthetics of information technology. Ilya Kazakov, a young, but already mature artist from Karaganda, stands out in the artistic space of contemporary Kazakhstan, and his creativity, in our view, is a fusion of the steppe worldview and the mindset of the information technology. Through the artistic treatment of local metalwork, Kazakov brings an active experimental approach to his work, inspired by the aesthetics of ancient times. Steppe motifs and the codes of the digital era merge in a harmonious symbiosis in his work. By analysing the artistic techniques, choice of materials and figurative decisions in Kazakov’s works, the author of the article seeks to understand the process of merging traditional cultural symbols with contemporary technological realities. The methodological approach employed in the study allows for the interpretation of Kazakov’s creativity not only as an individual expression of the artist but also as a reflection of contemporary cultural identity.
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Badowska, Katarzyna, and Wojciech Rutkowski. "‘Historical Craft from the Artisan’s Point of View’. Analysis of the Results of the Survey Conducted Among Craftsmen Specialising in Historical Reconstruction." Acta Universitatis Lodziensis. Folia Archaeologica, no. 34 (December 30, 2019): 243–53. http://dx.doi.org/10.18778/0208-6034.34.14.
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The paper presents the results of the survey carried out by the authors of this paper, the subject of which was experimental archaeology. We asked a group of artisans that deal with historical reconstruction a set of questions about the difficulties they encounter during their reconstruction work. What is their biggest problem? Where do the craftsmen derive information about the ancient technology from? How are their products received by recipients? The chronological framework of the reconstruction industry was narrowed down to one historical period (the time of the Przeworsk culture, that is the Pre-Roman Iron Age, the Roman Iron Age and Migration Period). This clearly showed some connections between a small group of craftsmen using ancient methods in their work and the academic world, and how important it is to acquire historical and archaeological knowledge and to find ethnographic inspirations in order to solve the problems of craft techniques. The survey covered artisans practising various crafts, from metalwork to pottery, which added a broader perspective to the issues studied.
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Shimelmitz, Ron, and Erez Ben-Yosef. "The stone-to-metal transition reflected in the Iron Age copper production sites of Timna Valley, Israel." PLOS ONE 18, no. 12 (2023): e0294569. http://dx.doi.org/10.1371/journal.pone.0294569.
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Metalwork was a major technological innovation that displaced stone-tool technologies and transformed human society and the environment. However, our understanding of these processes remains partial. In this paper, we approach the stone-to-metal transition from a novel angle–the presence of flint knapping at metal production sites. Drawing on excavations at the Late Bronze and Iron Age copper smelting sites in Timna Valley, Israel, we demonstrate that systematic production of expedient stone tools was integral to these sites’ industrial operations, placing it at the heart of the very same metal circulation networks that were presumably responsible for its displacement. The observations from Timna, coupled with evidence for the use of chipped stone technology in other early Iron Age metallurgical contexts, support the hypothesis that it was probably both the high accessibility of iron and its qualities that put an end to the stone tool industry. Copper and bronze could not easily fulfill the function of the ad hoc stone tools and were not used to replace stone tools even if they were available and accessible.
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C., Hamza, and Bawali Rita. "A Study on the Battle of Aberdeen." ACCST RESEARCH JOURNAL XIX, no. 4, October 2021 (2021): 26–28. https://doi.org/10.5281/zenodo.7793970.
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<em> The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 37 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The Andaman Sea lies to the east and the Bay of Bengal to the west. The Andaman Islands are also home to the Sentinelese people, an uncontacted tribe. The Sentinelese might be the only people currently known to not have reached further than a Paleolithic level of technology; however, this is disputed, as evidence of metalwork was found on their island. The earliest archaeological evidence documents some 2,200 years. However, genetic and cultural studies suggest that the indigenous Andamanese people may have been isolated from other populations during the Middle Paleolithic, which ended 30,000 years ago. Since that time, the Andamanese have diversified into linguistically and culturally distinct territorial groups.</em>
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Emmanuel, Kanife Chukwuemeka, Okanya Arinzechukwu Victor, and Ezugwu Cosmas Ikechukwu. "Influence of Achievement Motivation and Family Background on the Academic Performance of Automobile/Metalwork and Building/Woodwork Technology Students in Nigerian Universities." International Journal of Scientific and Research Publications (IJSRP) 12, no. 06 (2022): 424–32. http://dx.doi.org/10.29322/ijsrp.12.06.2022.p12653.
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Bowman, Sheridan, and Stuart Needham. "The Dunaverney and Little Thetford Flesh-Hooks: History, Technology and Their Position within the Later Bronze Age Atlantic Zone Feasting Complex." Antiquaries Journal 87 (September 2007): 53–108. http://dx.doi.org/10.1017/s0003581500000846.
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Discovered in County Antrim and Cambridgeshire respectively, the Dunaverney and Little Thetford flesh-hooks are two of only thirty-six currently known examples from the Bronze Age of the Atlantic seaboard of Europe. Both are impressive and enigmatic objects and are among the most elaborate of later-series flesh-hooks dating to c 1100–800 BC. Not surprisingly, from the time it was found in 1829, Dunaverney was the subject of much antiquarian interest. Yet, despite their rarity and unusualness, the Dunaverney and Little Thetford flesh-hooks have never been adequately studied.Our investigations have provided an understanding of the technology of these two fleshhooks, as well as new chronological information for the type as a whole. They have also revealed new uses of lost-wax casting in the British Isles, where the use of this technique is otherwise rare. The bird motifs on the Dunaverney flesh-hook remain unique, although it is now possible to set them against a broader background of iconographic representations on Atlantic feasting gear. Moreover, certain recurring design features may suggest that iconographic symbols were originally more often present on flesh-hooks. The findspot of Dunaverney lies at the heart of deposits of other contemporary prestige metalwork and that of Little Thetford within the greatest concentration of finds of the innovative Wilburton-stage metalworking tradition; both re-enforce the social significance of these rare objects.
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Olojuolawe, Sunday, and Olufemi Victor Adeoluwa. "Equipment and Facilities Gap in Vocational Technical Education of Higher Institution: Implication for Graduates Employability in Nigeria." Sains Humanika 14, no. 2 (2022): 13–21. http://dx.doi.org/10.11113/sh.v14n2.1838.
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Sains Humanika Full paper Equipment and Facilities Gap in Vocational Technical Education of Higher Institution: Implication for Graduates Employability in Nigeria The global aim of technical education is to produce competent manpower who will be employable or self-reliant. The rising rate of restiveness and criminality occasioned by the spate of unemployment among technical education graduates in Nigeria calls for concern. Despite the huge government investment in technical education, there seem to be a lot of grounds to be covered in equipment and facilities. This study surveys the equipment and facilities used for teaching technical students in Nigeria Universities. A peer-reviewed methodological approach based on a systematic review of journal articles and a checklist of the minimum equipment and facilities standards by the National University Commission was conducted using research assistants from Adekunle Ajasin University, Akungba Akoko, Ekiti State University and the Bamidele Olumilua University of Education, Science and Technology, Ikere-Ekiti was used for this study. The totality of equipment and Facilities available in the 3 Universities for imparting knowledge in Electrical/Electronics, Building technology, Woodwork Technology, Metalwork and Automobile technologies. The percentages of the available equipment and facilities were obtained using Excel Package for generalization. The study reveals that equipment and facilities for some courses in technical education are grossly in short supply. A recommendation was made for further study on the quality and functionality of the equipment and facility for teaching technical students in Nigerian Universities.
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Salnikova, Irina V. "On Technology of Manufacturing Medieval Ritual Silverware (Based on Materials from the Museum of the History and Culture of the Peoples of Siberia and the Far East, IAE SB RAS)." Archaeology and Ethnography 18, no. 7 (2019): 87–97. http://dx.doi.org/10.25205/1818-7919-2019-18-7-87-97.
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Purpose. The collection of the Museum of history and culture of peoples of Siberia and Far East at the Institute of Archaeology and Ethnography SB RAS has a unique section of ritual objects produced by the Ob Ugrians during Middle Ages. The collection features unique objects made of silver, which allows us to make a conclusion that silver had a sacral meaning for the Khanty and Mansi, and the material itself was closely connected with a complex of cosmological and mythological conceptions. Results. We conducted XRF analysis for a series of silver objects of cult and identified three objects made with the use of a special laborious technology by means of cold hammering from three sheets of silver. Conclusion. The article gives a full description of the objects and describes the semantics of the images presented. We provide the results of element composition of the metal and identify a circle of analogues. The artifacts considered included a metal plate with a solar sign made with gilding, with an engraving around it on the surface of metalwork, a stylized profile of attenuated heads of elks facing each other (the drawing was created later); the second item being a metal plate with a central part in the form of a medallion depicting a horseman who strikes a man lying at the horse’s legs with a spear (it was made by means of engraving on a ready form); and the third item being a platter with the images of an eagle owl standing on the back of a deer and a duck flying up. The plots of the silver items evidently have a cult significance and correspond to some mythological constructs. The unique technology of their three-layer composition is accounted for by mythological conceptions and enhances a sacral significance of the items.
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Ostrovsky, Anatoliy. "IMPROVEMENT OF RESCUE OPERATION WHEN POSTING GRINDING BALLS INTO A DIGGER." ENGINEERING, ENERGY, TRANSPORT AIC, no. 3(114) (September 28, 2021): 91–97. http://dx.doi.org/10.37128/2520-6168-2021-3-10.
Full textAbstract:
A characteristic feature of modern industries is the steady growth of mechanization and automation of production processes. The economic and social significance of mechanization is manifested in a wide range of measures aimed at replacing manual labor with machines and mechanisms, the transition to higher levels of mechanization, and ultimately to the highest degree of mechanization of automation. The combined development of science and technology significantly affects both complex and partial (non-complex) mechanization of production processes, generating an increase in the number of parts. A significant place in the technology of manufacturing parts is the casting process. About half of the parts are made of molten metals and other materials. One of the common methods is die casting. Shells (molds) of metal or cast iron molds, for free (gravitational) filling with liquid metal, are used repeatedly. Detachable and non-removable (solid) molds are used. The opening surface of the detachable mold can be horizontal, vertical, or combined. The subject of the study is a mold, which consists of two half-shapes with a vertical opening surface and pins of mutual centering of the shells. A wide range of enterprises: mining and processing plants, cement plants, construction plants, energy generating companies, etc. use the products of casting in the mold grinding layers. All types and sizes of grinding layers are intended for grinding of raw materials. Due to various technical reasons, during casting, a metal film is formed near the grinding balls, which fills the entire surface of the opening of the detachable mold. The operation of removing the lattice from the grinding layers is necessary to reproduce the geometric shape, quality requirements and considerations of industrial aesthetics of the product. Performing such an additional operation requires the collective work of employees with the use of physical force and appropriate tools. Existing technology with the use of metalwork tools leads to a deterioration in the appearance of the layers, and sometimes to damage the products. The essence of improving the lattice operation is to use a specially designed device for this operation, which in turn creates the conditions for mechanization of the production of grinding balls.
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Yeo, Chang Hyun. "The Growth and Transformation of the Political System in Goseong in the 3rd and 6th centuries Based on Archaeological Date." Yeongnam Archaeological Society 96 (May 31, 2023): 59–86. http://dx.doi.org/10.47417/yar.2023.96.59.
Full textAbstract:
Through archaeological data, this paper attempted to examine the process of transitional changes according to changes in the spatial domain of political bodies originating and growing in the Goseong area from the 3rd to the mid-to-late 6th century. Since about 1,800 years ago, the sea level in the Goseong area has risen again, making it possible to call port through Goseong Bay, and in the Goseongcheon alluvial plain area, freshwater lakes were formed, securing temporary land. Dongoe-dong Shell Mound is a central settlement formed around the 3rd and 4th centuries in Goseong Bay, and it can be seen that contemporary people divided the space according to functions such as squares, residences, steel facilities, and shell mounds. From the relics identified in the nearby Goseong-eup Fortress Site, the Samhan people who formed the Dongoe-dong Shell Mound were able to grow into a dominant group that integrated the Goseong Basin through active external trade with Nakrang in the north and Guju groups in the Japanese archipelago. In the 4th century, the remote trading system between politicians in the Yeongnam region, such as the expulsion of Chinese counties and prefectures and the growth of Geumgwan Gaya, will face major changes among diversified centers. By the 5th century, the trading system with neighboring countries was reorganized again, and with the emergence of central tombs, the formation of a resinous relationship in which a specific political body took the dominant position became clear. Foreign relics excavated from the ancient tomb group in the center of Goseong area are changed around the metalwork and harness for dressing in the dynamics of the surrounding forces, and at the same time, their identity and orientation are projected. In particular, Manlimsan Saturn, built around the early 6th century, can be seen as a structure that reflects the ruling control of Sogaya and the best civil engineering technology, and as a robustness of Sogaya politics.
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Myśliński, Michał. "Inspiracje sztuką i kulturą Podhala w powojennej galanterii i biżuterii polskiej." Artifex Novus, no. 5 (December 13, 2021): 66–77. http://dx.doi.org/10.21697/an.9370.
Full textAbstract:
Abstrakt:
 Zainteresowanie sztuką ludową Podhala wśród polskich artystów i badaczy sięga lat osiemdziesiątych XIX wieku. Wynikało ono z dostrzeżenia artystycznej wartości tworzonych tam dzieł oraz poszukiwań tzw. sztuki narodowej i rodzimej, tak bardzo ważnych dla polskiej kultury i tożsamości. Inspiracje kulturą materialną i artystyczną Podhala przyczyniły się m.in. do wielkiego sukcesu polskiej ekspozycji na Wystawie Sztuki Dekoracyjnej w Paryżu w 1925 roku.
 Zainteresowanie to nie zmniejszyło się po 1945 r., ale przybrało inne formy. W tym czasie powstawały w Polsce liczne spółdzielnie, których zadaniem było tworzenie przedmiotów codziennego użytku i dzieł sztuki ludowej, zgodnie z lokalną tradycją rękodzielniczą, ikonograficzną, zdobniczą itp. Pewną część produkcji stanowiła tzw. metaloplastyka – sprzączki do pasków, spinki do koszul, zatrzaski do torebek, noże, okucia fajek i in., których forma była inspiracją dla artystów tworzących dzieła biżuterii – bransoletki, broszki, wisiory itp. Asortyment ten uzupełniony został także o inne elementy – wykonywane z blachy, kości bydlęcej, galalitu i drewna broszki, wisiorki i breloki, które były przede wszystkim pamiątkami przywożonymi z tego bardzo popularnego regionu turystycznego.
 Summary:
 The interest in the folk art of the Podhale region among Polish artists and researchers dates back to the 1880s. It resulted from the perception of the artistic value of the works created here, as well as the search for the so-called national and native art, very important for Polish culture and national identity. Inspiration with the material culture of Podhale came from, among others a great effect in the form of the success of Polish art at the Exhibition of Decorative Art in Paris in 1925.
 This interest did not diminish after 1945, but took other forms. At that time, numerous cooperatives were established in Poland, whose task was to create everyday objects and works of folk art, in line with the local tradition in terms of technology, iconography, ornaments, etc. In Podhale, among many produced works, a certain part was the so-called metalwork – belt buckles, shirt clips, purse fasteners, knives, etc., the shape of which was an inspiration for artists creating bracelets, brooches, pendants, etc. This assortment was supplemented with other items – made of sheet metal, bovine bone, galalite and wood, brooches, pendants, and key rings, which were primarily souvenirs brought from this very popular tourist region.
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Kostomarova, Yu V. "The metal forging tools of the Late Bronze Age population of the forest-steppe Tobol River region (experimental-traceological analysis)." VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, no. 3 (50) (August 28, 2020): 48–60. http://dx.doi.org/10.20874/2071-0437-2020-50-3-4.
Full textAbstract:
The paper reports on the results of experimental-traceological study of stone tools used for metal forging by the Late Bronze Age population of the Middle Tobol River region (Western Siberia). The chronological span of the study, according to the radiocarbon dating, extends from the 17th to 9th centuries BC. This paper aims to substan-tiate and expand the existing knowledgebase on the metalwork production with the aid of experiments in forging copper and bronze. The research materials include about 60 stone tools from the Late Bronze Age sites and 23 experimental tools. The trace evidence analysis and microphotography of the signs of use-wear have been performed using a continuous-zoom microscope MC-2 ZOOM with 10х to 40х magnification and a Canon EOS-1100-D camera. The experimental study involved cold and hot forging of copper and bronze items with different tin content and their surface smoothening. As a result, the efficiency of the stone tools in molding has been con-firmed. The signs of use-wear of the tools have been recorded. Distinctive use-wear features of hammers for cold and hot forging associated with the tool kinematics have been identified. It has been concluded that the wear signs on the hammers used for incomplete hot and hot forging were identical. It appeared that the smooth working area of some flatters was the result of preliminary abrasive treatment. Smoothening and drawing proved efficient in processing of copper items and low-alloyed bronzes. This treatment was carried out on the hot metal. It has been ascertained that the kinematics of processing of the copper and bronze items was the same. The signs of usage of the tools employed for shaping bronze moldings with different tin content differ from those on the tools used on copper by more extensive chipping, which is due to a higher hardness of tin-copper alloys. Prototype multi-functional tools used in different operations, viz., forging and drawing, have been identified. Their specific is the working area with a combination of several groups of wear marks overlapping each other. Therefore, we managed to produce a series of the experimental tools used in copper and bronze forging. This allowed us to elaborate the functional identification and technology of some archaeological instruments from the Late Bronze Age sites of the forest-steppe Tobol River region.
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Romanenko, Victor, Mykhaylo Bloshchytsyn, Ivan Zheget, and Yuriy Yurchenko. "DESIGN AND TECHNOLOGICAL IMPROVEMENTS OF THE PROCESS OF LASER CUTTING OF METALS." Technical Sciences and Technologies, no. 4(30) (2022): 71–79. http://dx.doi.org/10.25140/2411-5363-2022-4(30)-71-79.
Full textAbstract:
An analysis of the existing methods of laser cutting is given and the features of constructive and technological improvement of the process are presented. The technology of laser cutting of metals, in particular sheet metal, is constantlybeing improved and modernized. Expanding the functionality of existing equipment on the market can be done by using two or more laser heads. The laser heads move synchronously and are programmatically coordinated among themselves in six coordinates. This allows not only to increase the speed of the cutting process, but also provides the possibility of simultaneously cutting several different parts or holes from one sheet or more sheets, which ensures the expansion of functionality, as wellas the acceleration of the cutting process.At the same time, the disadvantages of the traditional method of contour laser cutting are the low quality of the cut edges. To improve the quality of laser cutting, it is recommended to reduce the thermal effect on the metal of the workpiece with the help of a cooling liquid sprayed along with the gas flow, which allows to reduce the thermal conductivity of the metal of the workpiece. A significant drawback of this method is the complex design of the laser installation. Taking into account other disadvantages of the traditional contour laser cutting method (non-perpendicularity and high roughness) and the possible range of metal thicknesses, a combined laser cutting method was proposed. A combined laser installation was developed, where sheet metal is subjected to mechanical activation before laser cutting, which consists in cold plastic deformation. At the same time, the mechanical activation of the metal sheet occurs, which leads to a decrease in the thermal conductivity of the metaldue to its deformation hardening and, as a result, a reduction (localization) of the zone of thermal influence in the cutting zone. The observed effect is due to the compaction of the crystal lattice of the metal, the increase in the density of dislocationsduring plastic deformation. Whenapplying preliminary deformation, not only the width of the cut in the metal is reduced, but also the roughness of the cut surface and the size of the thermally affected zone at its edges.The presented technological solution makes it possible to reduce the cost of the product by reducing the labor intensity of further metalwork as a result of increasing the accuracy of dimensions and reducing the roughness of the cut surface and significantly reducing the width of the cut.
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Arun, Kumar Tripathy. "Status of Secondary Sector in Nabarangpur, Odisha." International Journal of Trend in Scientific Research and Development 5, no. 5 (2021): 1470–79. https://doi.org/10.5281/zenodo.5168506.
Full textAbstract:
Industry, group of productive enterprises or organizations that produce or supply goods, services, or sources of income. In economics, industries are generally classified as primary, secondary, tertiary, and quaternary; secondary industries are further classified as heavy and light. Primary sector of a nation’s economy includes agriculture, forestry, fishing, mining, quarrying, and the extraction of minerals. It may be divided into two categories: genetic industry, including the production of raw materials that may be increased by human intervention in the production process; and extractive industry, including the production of exhaustible raw materials that cannot be augmented through cultivation. The genetic industries include agriculture, forestry and livestock management and fishing—all of which are subject to scientific and technological improvement of renewable resources. The extractive industries include the mining of mineral ores, the quarrying of stone, and the extraction of mineral fuels. Primary industry tends to dominate the economies of undeveloped and developing nations, but as secondary and tertiary industries are developed, its share of the economic output tends to decrease. Secondary industry may be divided into heavy, or large-scale, and light, or small-scale, industry. Large-scale industry generally requires heavy capital investment in plants and machinery, serves a large and diverse market including other manufacturing industries, has a complex industrial organization and frequently a skilled specialized labour force, and generates a large volume of output. Examples would include petroleum refining, steel and iron manufacturing (see metalwork), motor vehicle and heavy machinery manufacture, cement production, nonferrous metal refining, meat-packing, and hydroelectric power generation. Tertiary industry sector includes, among others, banking, finance, insurance, investment, and real estate services; wholesale, retail, and resale trade; transportation; professional, consulting, legal, and personal services; tourism, hotels, restaurants, and entertainment; repair and maintenance services; and health, social welfare, administrative, police, security, and defense services. An extension of tertiary industry that is often recognized as its own sector, quaternary industry, is concerned with information-based or knowledge-oriented products and services. Like the tertiary sector, it comprises a mixture of private and government endeavours. Industries and activities in this sector include information systems and information technology (IT); research and development, including technological development and scientific research; financial and strategic analysis and consulting; media and communications technologies and services; and education, including teaching and educational technologies and services.
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Bua, Nelson, Luckshmana A. Jeyaseelan, Lee Parker, et al. "Outcomes of Posterior Malleolar Fixation in Ankle Fractures in A Major Trauma Centre." Foot & Ankle Orthopaedics 7, no. 1 (2022): 2473011421S0012. http://dx.doi.org/10.1177/2473011421s00121.
Full textAbstract:
Category: Ankle; Trauma Introduction/Purpose: Ongoing controversy exists over the indications and benefits of posterior malleolar fixation in ankle fractures. These injuries require careful evaluation of the bony and ligamentous structures with theoretical benefits of posterior malleolar fixation now widely accepted as restoration of articular congruity, restoration of fibular length and stabilisation of the syndesmosis. Surgical and patient report outcomes are varied in the literature with analysis limited by the lack of standardisation in functional outcomes and small patient populations. Posterior malleolar fixation does extend operative time and potentially increases complication rate. The aim of this pragmatic study was to evaluate the outcomes of posterior malleolar fracture fixation in the setting of a major trauma centre. Our hypothesis is that posterior malleolus fixation leads to improved clinical outcomes. Methods: A total of 320 patients were identified with operatively treated ankle fractures involving a posterior malleolus component, between January 2012 and January 2018, with minimum 2 year follow-up. Patient electronic records were assessed for demographic data including age, gender, mechanism of injury, co-morbidities and smoking status. Pre-operative imaging, including CT was used to evaluate the nature of the injury and classify the posterior malleolar fracture according to the Mason classification. One hundred and sixty patients underwent posterior malleolus fixation as part of their surgery and 160 patients did not. The Manchester-Oxford Foot Questionnaire (MOXFQ) at final follow-up, was the primary patient outcome measure.Complications were noted to be minor (superficial infection or delayed wound healing) or major (DVT/PE, deep infection, chronic regional pain syndrome (CRPS), arthrofibrosis, further intervention for post-traumatic arthritis, hardware failure or irritation). All cause reoperation rates were also noted. Results: Fixation of the posterior malleolus was associated with a statistically significant improvement in patient outcomes. Mean MOXFQ score in the unfixed posterior malleolus group was 24.03 (0 - 62), compared to 20.10 (0 - 67) in the fixed posterior malleolus group (p =0.04). Outcomes were worse with increasing size of posterior malleolar fragment. When compared with either posterior malleolus fixation alone or syndesmotic stabilisation alone, poorer outcomes were seen when the posterior malleolus fixed with additional syndesmotic stabilisation, with mean MOXFQ scores of 21.73 (0-60), p =0.057. Metalwork-related issues were higher in the posterior malleolus fixed group (24/160 (15%) versus 10/160 (6.2%), p=0.03). Re-operation rate was double (34/160 (21.2%) vs 16/160 (10%), p = 0.03). The main cause of this was hardware related issues. Conclusion: This pragmatic study is one of the largest published series that assesses patient reported outcomes in posterior malleolar fixation. The key finding is that posterior malleolar fixation is associated with a statistically significant improvement in patient reported outcome scores. However, the overall complication rate was 10.7% higher in the fixation group and the risk of reoperation was over double. Further research should focus on high quality randomised controlled trials with long term follow-up to assess long term impacts of this complex ankle injury pattern.
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Hall, Jonathan M. "Ethnic Identity in Greek Antiquity." Cambridge Archaeological Journal 8, no. 2 (1998): 265–83. http://dx.doi.org/10.1017/s0959774300001864.
Full textAbstract:
How should archaeologists approach ethnicity? This concept, which has such wide currency in social and anthropological studies, remains elusive when we seek to apply it to the archaeological past. The importance of ethnicity in our late twentieth-century world can easily lead us to believe that it must long have been a key element in human relations and awareness. The practice of defining oneself and one's group by contrast and opposition to other individuals and other groups, from the family level upwards, appears a basic feature of human behaviour. Ethnicity is a part of this social logic, though ethnic groups, and ethnicity itself, are notoriously difficult to define.Can we identify and distinguish ethnic groupings in the archaeological record? Had one posed that question earlier this century the answer would have no doubt have made immediate reference to the ‘culture-people hypothesis’; the idea that archaeological assemblages may be combined into ‘cultures’ defined by recurring features, be they metalwork, ceramic forms and decoration, or lithic technology. Each culture so defined might be equated (hypothetically at least) with a former people. Ethnographic studies, however, have long shown that these equations are overly simplistic. Phenomena such as the ‘Beaker culture’ are no longer assumed to be the material expression of a single ethnic group.Where historical evidence is available, it may be able to overcome some of the difficulties and examine just how a historical ethnic group — as perceived and defined by its own members — relates to a body of archaeological material. Jonathan Hall's study of ethnic identity in ancient Greece provides an excellent example of just such an approach. It also raises broader issues concerning the definition of ethnicity and its recognition in the archaeological record. Hall himself takes the view that ethnicity depends on what people say, not what they do; hence material culture alone, without supporting literary evidence, is an insufficient basis for the investigation of ethnic identity in past societies. To accept that view is to rule out the study of ethnicity for the greater part of the human past; we may suspect that ethnic groups played a part, but be unable to identify any surviving cultural parameters. Against such a pessimistic assessment, however, there is the contrary argument, that ethnicity may be expressed as well in material culture as in words. Should that be the case, archaeology may indeed be well equipped to open a window on past ethnicity, whether or not there are relevant contemporary texts.We begin this review feature in our usual way, with a summary by Jonathan Hall of the arguments set out in his book. Five commentators then take up the theme, raising comments and criticisms to which Hall responds in a closing reply.
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Steblyanko, V. L., A. P. Ponomarev, and Y. Y. Efimova. "Features of Plasma-Electrolytic Coatings Formation on Metalware Surface." Solid State Phenomena 265 (September 2017): 969–74. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.969.
Full textAbstract:
The paper presents the principal advantages of plasma-electrolytic coating method that characterize it as a highly promising technology. It is shown that these advantages are provided by the integrated nature of the effect, representing a combination of the main types of impacts on a surface: electrical, thermal, mechanical and chemical. This combination distinguishes the method of plasma-electrolytic treatment from many other widespread in up-to-date technology combinations composed generally of two types of impacts. It is suggested that the process of plasma-electrolytic coating is carried out by the mechanism of metal pressure welding that is confirmed by the results of tests for determining quality ratings of coatings. It is shown the thermodynamic and kinetic unity of these processes that allows plasma-electrolytic coating to be put in class of metal pressure welding processes and to consider the processes of coating by plasma-electrolytic method and pressure welding from a common methodological framework. The paper presents the results of the structure and composition studies of zinc plasma-electrolytic coatings on a strip for armoring cables of group A (GOST 3559-75). The researches were carried out using scanning electron microscopy, microroentgenspectral analysis and differential scanning calorimetry.
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Bristol, Liliana. "Goldwork in Estonia in the 20th century as exemplified by a fragment of the altar cloth at the Kaarli Church in Tallinn." Studia Vernacula 8 (November 13, 2017): 109–21. http://dx.doi.org/10.12697/sv.2017.8.109-121.
Full textAbstract:
The aim of this article is to introduce the Estonian goldwork tradition. In folk art, goldwork, or metalwork embroidery, has also been referred to as ‘tinsel embroidery’. It is a form of embroidery which uses different types of metal threads (containing gold, silver, copper, and other metals) and spirals, which are attached to the fabric using a fine thread. In the Estonian context, goldwork is a somewhat rarefied and narrowly-spread handicraft technique.
 In Estonia, goldwork played an important role in the decoration of church and military textiles. At the request of the Lutheran Church, goldwork was taught at the Department of Textile Design of the State School of Arts and Crafts between 1935 and 1940. In 1937, Aino Schmidt, an alumna of that institution, created several custom-made altar cloths, embellished with goldwork for the Kaarli Church in Tallinn. Rather than being made from velvet, as was typical at the time, the altar frontal and two lectern covers were made from white baize and embroidered with metal studs as well as with golden threads, spirals, and beads. Since the zeitgeist encouraged the young nation state to emphasise its uniqueness, it is understandable that ecclesiastical symbols were presented with simple traditional ornamentation and stylisation. After World War II, Estonia’s territory was incorporated into the Soviet Union, and churches came to be looked on with great disdain, thus the creation of church textiles and goldwork came to a halt. The creation of new textiles for churches resumed once more when Estonia regained its independence. Unfortunately, goldwork is no longer used in the creation of the textiles for the Estonian Lutheran Church and tapestry-weaving techniques are preferred instead.
 Nowadays there is no educational institution in Estonia where it would be possible to study the art of goldwork. Nor is there any master in Estonia who focuses on goldwork, nor anybody shaped by the local tradition from the beginning of the past century who would be able to teach the art of goldwork. And no instructions survive as to how goldwork was taught at the State School of Arts and Crafts. Since the teachers and the local master had a background in earlier traditions, it might be assumed that these instructions were mainly influenced by the Vienna and St. Petersburg schools.
 This article therefore mainly draws deliberately on the textiles that Schmidt created for the Kaarli Church in Tallinn; albeit the textiles have been ravaged by time. In addition, it is possible to draw on the knowledge and skills I have acquired while working under the guidance of Tatjana Kolosova (a representative of the English goldwork tradition) in Riga and the nuns at the Mount of Olives Convent of the Ascension of Our Lord in Jerusalem (representatives of the Moscow goldwork tradition). I singled out a pattern fragment where each technique used on the entire altar cloth was present. I paid close attention to the technology of the original artefact during the process of reconstruction. Although I did rely on modern possibilities in a few of the preparatory stages, traditional and time-consuming techniques were used while working on the reconstruction. Although my aim was to study the proper technique during the process of reconstruction and not to imitate the original, I did try to use as much as possible materials that were similar to the original.
 My so-called hands-on approach allowed me to conduct a more diverse study on old technical solutions, offering an opportunity to learn from the old masters without meeting them in person. The artefacts I examined, and which acted for me as the main means of communication with the past masters, were placed in a larger cultural framework and an overview concerning what is known about these masters has also been included in my study. The present study and reconstruction is an important step towards rediscovering goldwork techniques.
 Keywords: goldwork, goldwork embroiderer, altar cloth, church vestments, reconstruction
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Bristol, Liliana. "Goldwork in Estonia in the 20th century as exemplified by a fragment of the altar cloth at the Kaarli Church in Tallinn." Studia Vernacula 8 (November 13, 2017): 109–21. http://dx.doi.org/10.12697/sv.2017.8.109-121.
Full textAbstract:
The aim of this article is to introduce the Estonian goldwork tradition. In folk art, goldwork, or metalwork embroidery, has also been referred to as ‘tinsel embroidery’. It is a form of embroidery which uses different types of metal threads (containing gold, silver, copper, and other metals) and spirals, which are attached to the fabric using a fine thread. In the Estonian context, goldwork is a somewhat rarefied and narrowly-spread handicraft technique.
 In Estonia, goldwork played an important role in the decoration of church and military textiles. At the request of the Lutheran Church, goldwork was taught at the Department of Textile Design of the State School of Arts and Crafts between 1935 and 1940. In 1937, Aino Schmidt, an alumna of that institution, created several custom-made altar cloths, embellished with goldwork for the Kaarli Church in Tallinn. Rather than being made from velvet, as was typical at the time, the altar frontal and two lectern covers were made from white baize and embroidered with metal studs as well as with golden threads, spirals, and beads. Since the zeitgeist encouraged the young nation state to emphasise its uniqueness, it is understandable that ecclesiastical symbols were presented with simple traditional ornamentation and stylisation. After World War II, Estonia’s territory was incorporated into the Soviet Union, and churches came to be looked on with great disdain, thus the creation of church textiles and goldwork came to a halt. The creation of new textiles for churches resumed once more when Estonia regained its independence. Unfortunately, goldwork is no longer used in the creation of the textiles for the Estonian Lutheran Church and tapestry-weaving techniques are preferred instead.
 Nowadays there is no educational institution in Estonia where it would be possible to study the art of goldwork. Nor is there any master in Estonia who focuses on goldwork, nor anybody shaped by the local tradition from the beginning of the past century who would be able to teach the art of goldwork. And no instructions survive as to how goldwork was taught at the State School of Arts and Crafts. Since the teachers and the local master had a background in earlier traditions, it might be assumed that these instructions were mainly influenced by the Vienna and St. Petersburg schools.
 This article therefore mainly draws deliberately on the textiles that Schmidt created for the Kaarli Church in Tallinn; albeit the textiles have been ravaged by time. In addition, it is possible to draw on the knowledge and skills I have acquired while working under the guidance of Tatjana Kolosova (a representative of the English goldwork tradition) in Riga and the nuns at the Mount of Olives Convent of the Ascension of Our Lord in Jerusalem (representatives of the Moscow goldwork tradition). I singled out a pattern fragment where each technique used on the entire altar cloth was present. I paid close attention to the technology of the original artefact during the process of reconstruction. Although I did rely on modern possibilities in a few of the preparatory stages, traditional and time-consuming techniques were used while working on the reconstruction. Although my aim was to study the proper technique during the process of reconstruction and not to imitate the original, I did try to use as much as possible materials that were similar to the original.
 My so-called hands-on approach allowed me to conduct a more diverse study on old technical solutions, offering an opportunity to learn from the old masters without meeting them in person. The artefacts I examined, and which acted for me as the main means of communication with the past masters, were placed in a larger cultural framework and an overview concerning what is known about these masters has also been included in my study. The present study and reconstruction is an important step towards rediscovering goldwork techniques.
 Keywords: goldwork, goldwork embroiderer, altar cloth, church vestments, reconstruction
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Nescoromniy, S. V. "Development of a science-based technology for the manufacture of sheet panels with fasteners." E3S Web of Conferences 413 (2023): 04014. http://dx.doi.org/10.1051/e3sconf/202341304014.
Full textAbstract:
An analysis was made of the application of Stud Welding hardware welding technologies depending on the welded structures used, the duration of the process, the shape of the stud butt and the consumables used. The use of CD Stud Welding technology for welding metalware to thin-sheet panels is substantiated. The essence of the process of formation of a welded joint is described, which consists in the explosive evaporation of a protrusion at the end of a hardware during the discharge of capacitor banks, the excitation and burning of an electric arc in the metal vapors of the parts to be welded, their convergence when the spring mechanism overcomes the pressure of metal vapors, the immersion of the hardware into the weld pool of the part with subsequent crystallization molten metal in the liquid phase. The spring mechanism was calibrated using a compression dynamometer. The flowing pulsed current was registered depending on the input energy of the discharge of capacitor banks. The main parameters of the capacitor welding mode are determined and the dependences on the input energy and preliminary static pressure are established. The indicator of mechanical tests was taken as a quality parameter - the pull-off force. The effect of metal vapor pressure, which counteracts the convergence of welded parts, is revealed. Dependences of opposing pressures to the convergence of welded parts are constructed.
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Tulupov, O. N., A. B. Moller, and S. Y. Sarancha. "Increasing of Long Products Rolling Efficiency: Modernization of Stelmor Air Cooling Line to Obtain Sorbitized Wire Rod." Solid State Phenomena 265 (September 2017): 1116–22. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.1116.
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Most national companies are seeking to reduce costs, improve technological processes and increase profitability. The steel industry is no exception - an example of cost reduction is a technology of sorbitized wire rod production. This technology can improve the performance characteristics of wore rod and reduce the number of patenting stages during metalware production. The developed technology has been tested in the CIS countries Stelmor lines, and its task is to eliminate the significant disadvantages of these lines: the absence of differential cooling on the conveyor width, insufficient cooling rate of air cooling sections, the lack of frequency regulated speed control for electric motors. Eliminating these disadvantages and developing new cooling modes using the software, based on the original mathematical model, allows for the production of sorbitized wire rod with high performance characteristics, provided with increased level of pearlite dispersion (1-2 points for at least 85% of area). Each intense and retarded cooling section has to be fitted with adjustable flaps controlled by electric motors, ensuring the alignment rod temperature at the roller conveyor width. Before the start of the reconstruction of the cooling line a detailed technical and technological audit is required to identify and eliminate the causes that lead to uncontrolled temperature deviations or wire rod laying deviations on the cooling conveyor.
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Hrycaiczuk, Alex, John Biddlestone, Brian Rooney, Ashish Mahendra, Neil Fairbairn, and Bilal Jamal. "A NOVEL TECHNIQUE FOR MANAGEMENT OF A CRITICALLY-SIZED BONE DEFECT IN THE OPEN PROXIMAL TIBIAL FRACTURE: EMPLOYING THE CAPANNA TECHNIQUE IN TRAUMA." Orthopaedic Proceedings 105-B, SUPP_10 (2023): 38. http://dx.doi.org/10.1302/1358-992x.2023.10.038.
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IntroductionA significant burden of disease exists with respect to critical sized bone defects; outcomes are unpredictable and often poor. There is no absolute agreement on what constitutes a “critically-sized” bone defect however it is widely considered as one that would not heal spontaneously despite surgical stabilisation, thus requiring re-operation. The aetiology of such defects is varied. High-energy trauma with soft tissue loss and periosteal stripping, bone infection and tumour resection all require extensive debridement and the critical-sized defects generated require careful consideration and strategic management. Current management practice of these defects lacks consensus. Existing literature tells us that tibial defects 25mm or great have a poor natural history; however, there is no universally agreed management strategy and there remains a significant evidence gap. Drawing its origins from musculoskeletal oncology, the Capanna technique describes a hybrid mode of reconstruction. Mass allograft is combined with a vascularised fibula autograft, allowing the patient to benefit from the favourable characteristics of two popular reconstruction techniques. Allograft confers initial mechanical stability with autograft contributing osteogenic, inductive and conductive capacity to encourage union. Secondarily its inherent vascularity affords the construct the ability to withstand deleterious effects of stressors such as infection that may threaten union. The strengths of this hybrid construct we believe can be used within the context of critical-sized bone defects within tibial trauma to the same success as seen within tumour reconstruction.MethodologyUtilising the Capanna technique in trauma requires modification to the original procedure. In tumour surgery pre-operative cross-sectional imaging is a pre-requisite. This allows surgeons to assess margins, plan resections and order allograft to match the defect. In trauma this is not possible. We therefore propose a two-stage approach to address critical-sized tibial defects in open fractures. After initial debridement, external fixation and soft tissue management via a combined orthoplastics approach, CT imaging is performed to assess the defect geometry, with a polymethylmethacrylate (PMMA) spacer placed at index procedure to maintain soft tissue tension, alignment and deliver local antibiotics. Once comfortable that no further debridement is required and the risk of infection is appropriate then 3D printing technology can be used to mill custom jigs. Appropriate tibial allograft is ordered based on CT measurements. A pedicled fibula graft is raised through a lateral approach. The peroneal vessels are mobilised to the tibioperoneal trunk and passed medially into the bone void. The cadaveric bone is prepared using the custom jig on the back table and posterolateral troughs made to allow insertion of the fibula, permitting some hypertrophic expansion. A separate medial incision allows attachment of the custom jig to host tibia allowing for reciprocal cuts to match the allograft. The fibula is implanted into the allograft, ensuring nil tension on the pedicle and, after docking the graft, the hybrid construct is secured with multi-planar locking plates to provide rotational stability. The medial window allows plate placement safely away from the vascular pedicle.ResultsWe present a 50-year-old healthy male with a Gustilo & Anderson 3B proximal tibial fracture, open posteromedially with associated shear fragment, treated using the Capanna technique. Presenting following a fall climbing additional injuries included a closed ipsilateral calcaneal and medial malleolar fracture, both treated operatively. Our patient underwent reconstruction of his tibia with the above staged technique. Two debridements were carried out due to a 48-hour delay in presentation due to remote geographical location of recovery. Debridements were carried out in accordance with BOAST guidelines; a spanning knee external fixator applied and a small area of skin loss on the proximal medial calf reconstructed with a split thickness skin graft. A revision cement spacer was inserted into the metaphyseal defect measuring 84mm. At definitive surgery the external fixator was removed and graft fixation was extended to include the intra-articular fragments. No intra-operative complications were encountered during surgeries. The patient returned to theatre on day 13 with a medial sided haematoma. 20ml of haemoserous fluid was evacuated, a DAIR procedure performed and antibiotic-loaded bioceramics applied locally. Samples grew Staphylococcus aureus and antibiotic treatment was rationalised to Co-Trimoxazole 960mg BD and Rifampicin 450mg BD. The patient has completed a six-week course of Rifampicin and continues on suppressive Co-Trimoxazole monotherapy until planned metalwork removal. There is no evidence of ongoing active infection and radiological evidence of early union. The patient is independently walking four miles to the gym daily and we believe, thus far, despite accepted complications, we have demonstrated a relative early success.ConclusionsA variety of techniques exist for the management of critical-sized bone defects within the tibia. All of these come with a variety of drawbacks and limitations. Whilst acceptance of a limb length discrepancy is one option, intercalary defects of greater than 5 to 7cm typically require reconstruction. In patients in whom fine wire fixators and distraction osteogenesis are deemed inappropriate, or are unwilling to tolerate the frequent re-operations and potential donor site morbidity of the Masqualet technique, the Capanna technique offers a novel solution. Through using tibial allograft to address the size mismatch between vascularised fibula and tibia, the possible complication of fatigue fracture of an isolated fibula autograft is potentially avoidable in patients who have high functional demands. The Capanna technique has demonstrated satisfactory results within tumour reconstruction. Papers report that by combining the structural strength of allograft with the osteoconductive and osteoinductive properties of a vascularised autograft that limb salvage rates of greater than 80% and union rates of greater than 90% are achievable. If these results can indeed be replicated in the management of critical-sized bone defects in tibial trauma we potentially have a treatment strategy that can excel over the more widely practiced current techniques.
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Scarborough, Matthew, Ho Kwong Li, Ines Rombach, et al. "Oral versus intravenous antibiotics for bone and joint infections: the OVIVA non-inferiority RCT." Health Technology Assessment 23, no. 38 (2019): 1–92. http://dx.doi.org/10.3310/hta23380.
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Background Management of bone and joint infection commonly includes 4–6 weeks of intravenous (IV) antibiotics, but there is little evidence to suggest that oral (PO) therapy results in worse outcomes. Objective To determine whether or not PO antibiotics are non-inferior to IV antibiotics in treating bone and joint infection. Design Parallel-group, randomised (1 : 1), open-label, non-inferiority trial. The non-inferiority margin was 7.5%. Setting Twenty-six NHS hospitals. Participants Adults with a clinical diagnosis of bone, joint or orthopaedic metalware-associated infection who would ordinarily receive at least 6 weeks of antibiotics, and who had received ≤ 7 days of IV therapy from definitive surgery (or start of planned curative treatment in patients managed non-operatively). Interventions Participants were centrally computer-randomised to PO or IV antibiotics to complete the first 6 weeks of therapy. Follow-on PO therapy was permitted in either arm. Main outcome measure The primary outcome was the proportion of participants experiencing treatment failure within 1 year. An associated cost-effectiveness evaluation assessed health resource use and quality-of-life data. Results Out of 1054 participants (527 in each arm), end-point data were available for 1015 (96.30%) participants. Treatment failure was identified in 141 out of 1015 (13.89%) participants: 74 out of 506 (14.62%) and 67 out of 509 (13.16%) of those participants randomised to IV and PO therapy, respectively. In the intention-to-treat analysis, using multiple imputation to include all participants, the imputed risk difference between PO and IV therapy for definitive treatment failure was –1.38% (90% confidence interval –4.94% to 2.19%), thus meeting the non-inferiority criterion. A complete-case analysis, a per-protocol analysis and sensitivity analyses for missing data each confirmed this result. With the exception of IV catheter complications [49/523 (9.37%) in the IV arm vs. 5/523 (0.96%) in the PO arm)], there was no significant difference between the two arms in the incidence of serious adverse events. PO therapy was highly cost-effective, yielding a saving of £2740 per patient without any significant difference in quality-adjusted life-years between the two arms of the trial. Limitations The OVIVA (Oral Versus IntraVenous Antibiotics) trial was an open-label trial, but bias was limited by assessing all potential end points by a blinded adjudication committee. The population was heterogenous, which facilitated generalisability but limited the statistical power of subgroup analyses. Participants were only followed up for 1 year so differences in late recurrence cannot be excluded. Conclusions PO antibiotic therapy is non-inferior to IV therapy when used during the first 6 weeks in the treatment for bone and joint infection, as assessed by definitive treatment failure within 1 year of randomisation. These findings challenge the current standard of care and provide an opportunity to realise significant benefits for patients, antimicrobial stewardship and the health economy. Future work Further work is required to define the optimal total duration of therapy for bone and joint infection in the context of specific surgical interventions. Currently, wide variation in clinical practice suggests significant redundancy that likely contributes to the excess and unnecessary use of antibiotics. Trial registration Current Controlled Trials ISRCTN91566927. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 38. See the NIHR Journals Library website for further project information.
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Oluwatimilehin, Ariyo Samson, Umar Yunus, and Okunnuga Damilare. "Entrepreneurial Skills Required by Metalwork Technology Students for Workforce Sustainability in Technical Colleges in Lagos State." INTERNATIONAL JOURNAL OF SOCIAL SCIENCE AND EDUCATION RESEARCH STUDIES 03, no. 11 (2023). http://dx.doi.org/10.55677/ijssers/v03i11y2023-06.
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The purpose of this study was to determine the entrepreneurial skills required by metalwork technology students for workforce sustainability in technical colleges in Lagos State. Four research questions and three hypotheses guided the study. A descriptive survey research design was adopted to carry out the study. The population for the study was one hundred and four (104) respondents, comprising 19 metalwork technology students from Lagos State Technical College, Agidingbi. 28 metalwork technology students from Lagos State Technical College, Ikeja; 26 metalwork technology students from Lagos State Technical College, Ikorodu; and 31 metalwork technology students from the Federal College of Education (Technical), Akoka, Lagos. four questionnaires titled, The technical skills required by metal work technology students for workforce sustainability in Technical colleges in Lagos state. “; The marketing skills required by metal work technology students for workforce sustainability in technical colleges, The managerial skills required by metalwork technology students for workforce sustainability in technical colleges The problem-solving skills required by metalwork technology students for workforce sustainability in Nigeria’s technical colleges were developed by the researchers and used for data collection. Three experts validated the instruments: two experts from the Department of Industrial Technical Education, University of Nigeria, Nsukka, and one expert from the Department of Vocational Education, School of Technical Education, Yaba College of Technology. The reliability coefficient of the instrument was found to be 0.86, 0.81, 0.89, and 0.73. Data collected were analyzed using the mean and standard deviation to answer the research questions, while t-test statistics were used to test the hypotheses at 0.05 level of significance. The study found no significant difference significant difference in the mean response of metalwork technology students and metalwork technology lecturer on the entrepreneurial skills required by metalwork technology students for workforce sustainability in technical colleges.
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Dakers, John R. "What is technology education?" LUMAT: International Journal on Math, Science and Technology Education 11, no. 4 (2024). http://dx.doi.org/10.31129/lumat.11.4.2207.
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The trouble with answering the question ‘What is technology education?’ is that there is no precise and well-defined answer. This is attributable, in one important respect, to the breadth of subject domains that exist in technology education today. These vary across the world but may include woodwork, metalwork, working in plastics, technical drawing or graphic communication, CAD, electronics, pneumatics, mechanics, design or learning about the concept of becoming technologically literate. Each of these subject domains tends to be taught independently from one another and assessed likewise. You cannot teach and assess technical drawing in a woodwork or metalwork classroom setting. This particular issue has now become further confused with the introduction of STEM education.
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S.U., Tyem, Emmanuel J.M., and Emmanuel Raymond. "Effects of Constructivism and Experiential Learning Models on Students’ Achievement and Interest In General Metalwork in Plateau and Kaduna States, Nigeria." International Journal of Integrated Research in Education, February 9, 2019, 89–97. http://dx.doi.org/10.36265/ijired.2019.010112.
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The rapid rate of technological development in general metalwork and the increasing demands for cognitive, and psychomotor, capabilities in the mechanical world of work from technical college graduate call for a search for a complementary learning procedure to equip mechanical craftsmen with the necessary skills in general metalwork for performing and coping effectively in the mechanical world of work. This study determined the effects of constructivism and experiential learning models on students‟ achievement and interest in general metalwork. The study was a pretest, posttest, non-equivalent control group quasi-experimental design. Two research questions and two hypotheses were tested at 0.05 level of significance guided the study. The population of the study consisted of 146 National Technical College one (TC I) Students offering General metalwork in Plateau and Kaduna States. Simple random sampling technique was used to arrive at four Technical Colleges offering Welding and Fabrication Engineering craft, to get a sampled population of 109 (TC I) Students from four intact classes. The experimental group „A‟ (CLM) had a population of 53 students while the experimental group „B‟ (ELM) had a population of 56 students. Two sets of lesson plan were designed and used to teach both experimental groups. The constructivism instructional lesson plan was used to teach experimental group „A‟ while the experiential learning model lesson plan was used to teach the experimental group „B‟. The instrument used for data collection were, metalwork cognitive achievement test (MCAT), and metalwork interest inventory (MII). The instruments, as well as the lesson plans were validated by three experts in the Department of Industrial and Technology Education, Federal University of Technology Minna. Nigeria. Through the Statistical Packages for Social Sciences (SPSS) data collected were analyzed using mean and analysis of covariance (ANCOVA). Mean was used to answer the research questions while ANCOVA was used to test the hypotheses at 0.05 level of significance. The findings of the study revealed that students taught with constructivism learning model perform better as they have higher achievement score and higher interest score than those taught with experiential learning model. The findings from the hypotheses revealed significant difference in the mean cognitive achievement score, and interest score of students taught general metalwork using constructivism and experiential learning model. It is therefore recommended that technical college teachers be encouraged, trained, and equipped with the necessary skills required to effectively used constructivism learning models for classroom instructions and learning.
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Ajie, P. M., M. N. Osoh, and C. G. Thomas. "Up-skilling Metalwork Technology in TVET Institutions in Rivers State for Relevance in the 21st Century Work Place." Asian Journal of Education and Social Studies, July 26, 2022, 1–7. http://dx.doi.org/10.9734/ajess/2022/v31i330747.
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The study examined the up-skilling needs of metalwork technology in TVET institutions in Rivers state for relevance in 21st century workplace. The study adopted the descriptive survey design. The population of the study was 174 respondents which comprised 67 lecturers and 107 instructors in metalwork/mechanical department. No sampling was done as the population was manageable. Two research questions and two hypotheses were formulated. A survey questionnaire was developed to elicit responses from the respondents. The instrument was structured on 4-point rating scale, which was validated by two experts. The reliability of the instrument was established using Cronbach Alpha Reliability Coefficient which yielded a reliability index of .84. Descriptive mean and standard deviation were used to answer the research questions and to determine the disparity in the responses of the respondent. While t-test was used to test the stated null hypotheses at .05 significance level. The study found that general skills in metalwork technology to be up-skilled include problem solving, ICT applications, creativity, and effective communication skills. Also the study found that machining operation skills that needed to be up-skilled includes turning skills, thread cutting skills, filing skills, grooving skills drilling, forging, welding, and fabrication. It was recommended among others that from time to time, there should be on-the-job- training for all technologists on the improvement of their practical skills, level of ICT application skill, leadership skills effective communication skills, creativity skills for effective workplace relevance in the 21st century in higher institutions in Rivers State.
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"Typology, technology, composition and context of Muisca metalwork (Colombia, AD 600-1800): a database." Journal of Open Archaeology Data 1, no. 1 (2012): e4. http://dx.doi.org/10.5334/4f60dd6baa298.
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Doko, Chado, Muhammad Isa, and Okwori, Ogbanje Robert. "The Effect of Computer-Assisted Instructional Package for Teaching Metalwork Technology (MWT) at Nigeria Certificate in Deucalion (Technical) Level." International Journal of Academic Research in Economics and Management Sciences 3, no. 6 (2015). http://dx.doi.org/10.6007/ijarems/v3-i6/1454.
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Doko, Chado, Muhammad Isa, and Okwori, Ogbanje Robert. "The Effect of Computer-Assisted Instructional Package for Teaching Metalwork Technology (MWT) at Nigeria Certificate in Deucalion (Technical) Level." International Journal of Academic Research in Progressive Education and Development 4, no. 1 (2015). http://dx.doi.org/10.6007/ijarped/v4-i1/1455.
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Tarbay, János Gábor. "A Koszider Period Sword from Tornyospálca-Sírkútgaz (Szabolcs-Szatmár-Bereg County, Hungary)." Dissertationes Archaeologicae, March 2, 2022, 101–20. http://dx.doi.org/10.17204/dissarch.2021.101.
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The study discusses a metal-hilted sword from Tornyospálca-Sírkútgaz (Szabolcs-Szatmár-Bereg County, Hungary). This find is an “old debt” of local Bronze Age research since it was left unpublished in the prehistoric collection of the Hungarian National Museum for more than half a century following its accidental discovery in 1956. The Tornyospálca-Sírkútgaz sword is a unique weapon compared to other Middle Bronze Age (Koszider Period, Br B1) Carpathian weapons. The Valsømagle swords have a few related finds from this area and from the wider territory of Europe. This study introduces the weapon to the scientific public with a brief discussion of related finds and their relative chronological position. The production technology, use-wear traces, and the deposition condition of the Tornyospálca-Sírkútgaz sword have been studied by metalwork production and use-wear analysis, and the results are also compared to the swords and the dagger of the eponymous Zajta hoard (Szabolcs-Szatmár-Bereg County, Hungary).
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Oladeji, Emmanuel Olusola, Stanley Masunda, Ahmed Lashin, Oghofori Obakponovwe, and Madhu Rao. "Novel use of a bronchoscope and bariatric needle holder for retrieval of retained intramedullary metalwork during total knee arthroplasty." MethodsX, February 2023, 102080. http://dx.doi.org/10.1016/j.mex.2023.102080.
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Liu, Yan, Rui Li, Junchang Yang, Ruiliang Liu, Guoxing Zhao, and Panpan Tan. "China and the steppe: technological study of precious metalwork from Xigoupan Tomb 2 (4th–3rd c. BCE) in the Ordos region, Inner Mongolia." Heritage Science 9, no. 1 (2021). http://dx.doi.org/10.1186/s40494-021-00520-5.
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AbstractTechnology employed by the ancient goldsmiths is traceable through archaeometallurgy. Using non-destructive analytical methods, namely, a 3D digital microscopy and a scanning electron microscopy with energy dispersive spectrometer (SEM–EDS), we investigated the manufacturing techniques and chemical composition of gold and silver artefacts recovered from Tomb 2 (M2), the richest find from Xigoupan cemetery (fourth-third century BCE) in the northern part of Jungar Banner, Inner Mongolia. The present research contributes to a better understanding of the inventive nature of precious metal working industry in early China (eighth-third century BCE). First, cultural interchange was evidenced in the metalwork examined, notably as being closely linked to techniques emerging from the Eurasian steppes. In Xigoupan M2, the ornamentation of sheet works in the Scytho-Siberian animal style was seen to be clearly influenced by the central Asian steppe goldsmithing practice, while certain cast items were typical of the Chinese tradition. Second, our analysis reveals that the gold appliqués with raised animal figures that were previously thought to be repoussé work have actually been made with double-sided carving. We consider such a new technology as one of local inventions that was inspired by methods arriving from the central Asian steppes. In addition, our analysis of elemental composition reveals that the gold artefacts found in Xigoupan M2 to be made of natural gold, while the horse harness ornament is made of pure silver. These results, combined with the study of the existing data pertaining to comparable examples, attest to the shared craftsmanship in prestige metal production across the northern Chinese states, especially with regard to the pre-imperial period Qin workshop.