To see the other types of publications on this topic, follow the link: Ceramic centre.
Journal articles on the topic 'Ceramic centre'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Ceramic centre.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Ruiz-Ardanaz, Iván, Sayoa Araiz-González, Esther Lasheras, and Adrián Durán. "The Ceramic Production and Distribution Network in the Ancient Kingdom of Navarre (Spain) during the 12th–15th Centuries." Heritage 7, no. 9 (2024): 4814–28. http://dx.doi.org/10.3390/heritage7090228.
Full textAbstract:
The Kingdom of Navarre was a Christian kingdom located in the north of the Iberian Peninsula during the Middle Ages. Its location on the west of the isthmus between the Iberian Peninsula and the European continent allowed an exchange of cultural currents. The main pottery production centres were in Estella, Lumbier, Pamplona, Tafalla, and Tudela. Ceramic pastes from various mediaeval sites were analysed for both elemental and mineralogical composition determination. The results were evaluated using Principal Component Analysis and allowed us to identify each production centre. Each manufacturing centre showed a different and characteristic composition of raw materials. Ceramics from Tudela were Ca-, Mg-, Na-, and Sr-rich. Ceramics from Estella were richer in Al, K, and Ti. Ca, Sc, and Sr contents were higher in Tafalla ceramics. Lumbier ceramics stood out for being enriched in Si, Mn, Fe, and Zr. Pamplona ceramics showed intermediate values. The analysis of samples from other Navarrese locations allowed us to begin to define what the commercial ceramic network in the Kingdom of Navarre was like during the Middle Ages. Therefore, two aims were defined for this paper: to characterise the ceramic pastes for each of the producing centres and to know where the ceramics were exported to.
2
Enoch, Olalere Folasayo, Ab Aziz Bin Shuaib, and Ramli bin Ismail. "The Application of Computer Aided Design as Tool for Building User-Centered Design in Consumer Ceramics’ Product Development." International Journal of Art, Culture and Design Technologies 2, no. 2 (2012): 30–42. http://dx.doi.org/10.4018/ijacdt.2012070103.
Full textAbstract:
This paper investigates the knowledge regarding how user-centre design can be built in ceramic consumer products. The paper gives the general overview of ceramics, computer-aided design and its application in ceramic product development. It also illuminates on product emotion, its influence on consumers’ behaviour and how it can be integrated into new product conceptualization. Furthermore, the paper analysed the systematic approach in building user-centred design in new product and also reveals how CAD can be used to achieve a user-centred design. In order to test the viability of CAD in achieving user-centred design, a study was performed where a CAD-model of a multi-functional ceramic pot was created and a questionnaire with the image (CAD model) and eight emotions was given to participants so as to know their emotional responses toward the product. The result from the study reveals the viability of computer aided design as tool for building user-centred design in consumer ceramics’ product development.
3
Kurniawan, I., and R. S. Novanto. "Making a Logo as Destination Branding: Case Study Kebon Jayanti Ceramic Centre." Proceeding of International Conference on Business, Economics, Social Sciences, and Humanities 3 (December 1, 2022): 471–81. http://dx.doi.org/10.34010/icobest.v3i.175.
Full textAbstract:
Bandung is a city known for its various local wisdom and diverse cultures. Continuing to preserve the value of intergenerational traditions in the current of modernization. Among the various creative industries that Bandung has, there are communities that are trying to maintain the traditional pottery culture. The Kebon Jayanti ceramic centre is a center for pottery craftsmen in Bandung, which was inaugurated in 1960 by the Bandung City Government as a tourist spot for shopping for ornamental pottery. Its products have been marketed to all regions in Indonesia. Since its inception, the products of the Kebon Jayanti ceramic centre have continued to change in terms of form, function, and style due to changes in business owners. This condition is vulnerable to the identity of the producer which is difficult to identify. So that the brand from Kebon Jayanti ceramic centre is less well known, and also has an impact on its existence. The method used in this research is qualitative approach, revealing identity through the history, purpose, and role of craftsmen in the Kebon Jayanti pottery industry and then translated into a visual identity. This research produces a visual identity in the form of a logo that can be used to build the image of the Kebon Jayanti ceramic centre. The logo that has been designed is also applied to the media for supporting the brand image. Starting from stationery design, packaging, merchandise, and signage that can introduce, strengthen, and expand the reach of the Kebon Jayanti ceramic centre brand. Through this visual identity design, it is hoped that consumers can easily remember and identify the Kebon Jayanti as a ceramic center that has unique culture and is interesting to visit.
4
Garatti, Giorgio, and Giulia Iadicicco. "Alcune osservazioni sulla forma calice dagli scavi di San Basilio di Ariano nel Polesine (campagne 2019-2022)." Archeologia Veneta XLVI (January 10, 2024): 86–103. https://doi.org/10.5281/zenodo.10643161.
Full textAbstract:
Riassunto Il contributo intende esaminare gli esemplari appartenenti alla forma ceramica del calice a pareti troncoconiche provenienti dall’insediamento preromano di San Basilio di Ariano nel Polesine (RO) e, in particolare, dalle recenti campagne di scavo condotte dall’Università di Padova (2019-2022). Lo studio di questa forma, ampiamente attestata in Etruria padana e presente all’interno del centro polesano in diverse classi ceramiche, permette di cogliere un interessante fenomeno di ibridazione fra produzioni differenti, esito dell’interazione fra le diverse componenti culturali che convivevano nel sito. Abstract This paper aims at studying a few pieces of trunk-conical ceramic chalices found at the pre-Roman settlement of San Basilio di Ariano in the Polesine (RO), in particular those unearthed during recent excavation conducted by the University of Padua (2019-2022). This kind of chalices is widely attested in the Etruscan-Po Valley area and present in different ceramic classes within the Polesine centre. The results reveal an interesting phenomenon of hybridization between different productions as the outcome of the interaction between the diverse cultural components that coexisted at the site.
5
Kladchenko, Olga V. "THE POTTERY ANT HOUSEWARE OF THE VOLNA 12 SETTLEMENT FROM EXCAVATIONS 2013-2015." History, Archeology and Ethnography of the Caucasus 17, no. 2 (2021): 428–54. http://dx.doi.org/10.32653/ch172428-454.
Full textAbstract:
The settlement of Volna 12 was excavated in 2013– 2015, on the Taman Peninsula. The settlement is located on the south-western coast of the Taman Peninsula, 5.8 km north-west of the outskirts of the Volna village and 1.8 km north of Cape Panagia. The period of the settlement's existence falls on the late 17th (possibly the beginning of the 18th) – early 19th centuries. The settlement with an area of 31 hectares has been fully explored, so we have the opportunity to work with its materials in full. The previously unpublished ceramic material of the settlement - dishes and ceramic household items – is considered in the article by groups and categories. Particular attention is paid to non-glazed ceramics, which for a long time remained outside the interests of researchers. The article considers such categories of ceramic vessels as Aquarius, jugs, bowls, household vessels, braziers. The settlement did not exist for a very long period of time (about 100– 150 years), therefore, chronological differences in the ceramic material cannot be found. Obviously, it mainly comes from one or several centres of the South-Eastern Crimea, but the question of the centre of production of these vessels remains unresolved.
6
Hesemans, Hanna. "From Ceramic Centre to Creative Hub." Maastricht Journal of Liberal Arts 9 (June 27, 2017): 5. http://dx.doi.org/10.26481/mjla.2017.v9.452.
Full text
7
Bernstein, Anke, Renate Gildenhaar, Georg Berger, and Hermann O. Mayr. "In Vitro and In Vivo Behaviour of a Ceramic with Interconnected Macroporosity." Key Engineering Materials 396-398 (October 2008): 19–22. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.19.
Full textAbstract:
Bioactive ceramics such as β-tricalcium phosphate (β-TCP) promote and enhance biological fixation. Ceramics with a porous interconnected structure are suited for facilitation of bony ingrowth. An interconnected pore system with pore diameters in excess of 100 µm is required for cell penetration, tissue ingrowth, vascularization and nutrient delivery to the centre of the regenerating tissue. Human osteoblasts were cultured on the surface of a ceramic. In an in-vivo study, β-TCP samples with a porous interconnected structure were implanted into the femur of sheep and then investigated 6 weeks after operation. Histological analysis was performed on the area surrounding the implant. An indentation test was performed to complete failure of the bone/ceramic compound. Linear load, peak load and stiffness were recorded. All cylinders were found to be biocompatible and osteoconductive. Bone was more abundant in the outer ring than in the rest of the cylinder. The ceramic/bone compound was of low mechanical grade.
8
MISRA, S. N., B. B. MACHHOYA, and R. M. SAVSANI. "THERMO PHYSICAL CHARACTERISTICS OF VITRIFIED TILE POLISHING WASTE FOR USE IN TRADITIONAL CERAMICS-AN INITIATIVE OF CGCRI, NARODA CENTRE." International Journal of Modern Physics: Conference Series 22 (January 2013): 118–33. http://dx.doi.org/10.1142/s2010194513010003.
Full textAbstract:
This paper reports the thermo physical characteristics of Vitrified tile polishing waste materials. As such growing production of vitrified tiles in the country generate large volume of this waste obtained during processing, polishing and cutting of the vitrified tiles to the tune of nearly 10-15 tonnes per day from each plant. The characteristic features of these materials are being studied and investigated to develop suitable technology for finding its gainful use especially in the traditional ceramics. It is known that ceramic as such building materials industry could be a large raw materials consumer and being heterogeneous and thus could utilize this vast quantity as the raw materials. However, the main problem would be it's firing nature as it showed thermal deformation after a particular temperature. Interestingly, the production process of most of the traditional ceramics follows a similar pattern starting from the raw materials processing up to a level of firing. Hence, to suggest suitable utility in the traditional ceramics as raw materials, it was the prime requisite that these waste must be thoroughly studied w. r. t various thermo physical characteristics to make use in this sectors. Hence, the present paper interestingly gone up to various study such as raw materials nature, particle size distribution, chemistry, XRD and DTA study for understanding typical physico chemical properties, and finally thermal properties to make it suitable for use in traditional ceramic industries. The higher fineness of the waste materials indicates its usefulness without extra grinding. The chemistry of typical sludge shows contamination from abrasive particles, sorrel cement bonding materials etc. originated from the polishing wheel and needs special precaution while suggesting use in the ceramic sectors. The firing characteristics of the sludge materials produces a foamy and spongy shapes and this could be the main guiding parameters in selecting the end use of the waste materials w. r. t temperature. The present study only shows various characteristic features of this waste and focuses its important properties to be used as a raw material in large quantity in the ceramic industries.
9
Huson, David, and Stephen Hoskins. "3D Printed Ceramics for Tableware, Artists/Designers and Specialist Applications." Key Engineering Materials 608 (April 2014): 351–57. http://dx.doi.org/10.4028/www.scientific.net/kem.608.351.
Full textAbstract:
The Centre for Fine Print Research at the University of the West of England has over five years experience in the 3D printing of ceramic materials. The first project undertaken was to investigate the use of 3D technologies for artists and resulted in the development of a patented ceramic body suitable for use in Z Corporation 3D printers. After bisque firing this material can be further processed using conventional glazing and decorating techniques. A follow on project has resulted in a modified ceramic body and the development of firing supports to enable thin section ceramic tableware to be produced for ceramic industry concept modelling and short run or one-off pieces for artists and designers. This paper will detail the progress of the research and will explain by using case studies and examples of collaboration with a leading UK pottery manufacturer, individual artists and designers how this novel technique can be utilised to form shapes and forms difficult or impossible to realise by conventional forming methods. The potential of how the ability to form ceramic objects with complex internal structures could be beneficial to more specialist ceramics industries will also be explored.
10
Tana, Li. "Towards an environmental history of the eastern Red River Delta, Vietnam, c.900–1400." Journal of Southeast Asian Studies 45, no. 3 (2014): 315–37. http://dx.doi.org/10.1017/s0022463414000319.
Full textAbstract:
This article focuses on the eastern region of the Red River Delta, Vietnam, between the tenth and sixteenth centuries. This area was an important centre of economic and population growth in Đại Việt in the thirteenth and fourteenth centuries, and nurtured Đại Việt's sophisticated and renowned ceramics industry, hosted leading schools of Vietnamese Buddhism and bred a rising class of scholars and bureaucrats. The region's rapid rise as an economic and political centre was, however, also the key to its undoing. The sudden spike in population density, and the intensive logging carried out for ceramic production, and temple and ship building, overtaxed the area's natural resources. The burden on the local ecology was exacerbated by the Trần dynasty's dyke building project, which shifted the river's course. The ensuing environmental deterioration might have been one major reason for the Vietnamese forsaking the large-scale ceramic production in Chu Đậu, deserting their main port, Vân Đồn, and for the Chinese abandoning a historical maritime invasion route.
11
Ganiyu, Abiodun, Massimo Beltrame, José António Mirão, and José Mateus. "ARCHAEOMETRIC STUDY OF THE PROTO-HISTORIC CERAMICS FROM THE SETTLEMENT OF THE AVECASTA CAVE (FERREIRA DO ZÊZERE, PORTUGAL)." Estudos do Quaternário / Quaternary Studies, no. 22 (March 5, 2023): 45–84. http://dx.doi.org/10.30893/eq.v0i22.207.
Full textAbstract:
Abstract:The Avecasta Cave is the only proto-historic cave recognised as a settlement in the centre of Portugal. Other proto-historic caves in the centre of Portugal were normally used for ritual purposes. Based on its distinct function, it became essential to study uncovered ceramic sherds from the cave to contribute to the history of the people who lived there. So, this research aims to determine the ceramic samples’ technology, provenance, physical properties, and changes in the raw materials used to produce ceramics, with a chronology comprised between the Neolithic and the Iron Age. Optical Microscope, X-ray Diffraction, X-ray Fluorescence, Scanning Electron Microscope coupled to Energy Dispersive Spectrometer, and a Helium Gas Pycnometer were used to accomplish these goals. The results of the analysed samples reveal four groups of different mineralogical and chemical composition, and establish their probable provenance and physical properties.
 Keywords: Avecasta Cave, Proto-Historic Ceramic, Ceramic technology, Provenance, Archaeometry
 
 Resumo:A Gruta de Avecasta é a única gruta proto-histórica identificada como povoado na área central de Portugal. Outras grutas proto-históricas na mesma região foram utilizadas apenas para fins rituais. Pela sua função distinta, tornou-se imprescindível o estudo dos fragmentos cerâmicos encontrados na gruta, contribuindo para o conhecimento das sociedades que ocuparam o espaço. Este trabalho visa determinar a tecnologia usada, proveniência, propriedades físicas e possíveis mudanças de matérias-primas cerâmicas usadas do Neolítico à Idade do Ferro. Petrografia de cerâmicas, Difração de Raios-X, Fluorescência de Raios-X, Microscópio Eletrónico de varrimento acoplado a Espectrómetro de Dispersão em Energia, além dum Picnómetro de Gás Hélio foram utilizados para atingir estes objetivos. Os resultados do estudo revelam quatro grupos, com diferentes composições mineralógicas e químicas, estabelecem a sua possível proveniência e identificam as suas propriedades físicas.
 Palavras-chave: Gruta de Avecasta, Cerâmica Proto-Histórica, Tecnologia cerâmica, Proveniência, Arqueométria
12
Hoskins, Stephen, and David Huson. "Underglaze Tissue Printing for Ceramic Artists, a Collaborative Project to Re-Appraise 19th Century Printing Skills." Key Engineering Materials 608 (April 2014): 335–40. http://dx.doi.org/10.4028/www.scientific.net/kem.608.335.
Full textAbstract:
Under-glaze tissue ceramic transfer printing first developed circa 1750 and involved engraved or etched copper plates, from which tissue was printed with cobalt blue oxides. Under-glaze tissue has a very distinctive, subtle quality - it is an integral part of both English ceramic history and the history of copperplate engraving. The process was common in the UK ceramics industry until the1980s. However from the 1950s it began to be supplemented by screen-printing, because underglaze tissue transfer was relatively slow and required skilled artisans to apply the transfers. The authors are collaborating with Burleigh Pottery in Stoke-on-Trent, the last remaining company to produce ceramic tableware decorated using the traditional printed under-glaze tissue method. The pottery was recently saved from closure by the HRH Prince Charles Regeneration Trust, who wish to maintain the traditional manufacturing skills for the next 25 years. The Centre for Fine Print Research (CFPR) in Bristol has been reappraising the use of these traditional 19th Century skills with modern materials and methods for producing engraved plates. The project seeks to demonstrate how those 19th Century methods can be applied by contemporary ceramic artists. The paper will explain the process of ink manufacture, heating the plate for printing, digital methods of making plates and the use of potters tissue.
13
Ilyina, V. P. "CERAMIC TILE BASED ON LOCAL HYDROMICA CLAY AND PEGMATITE DUST REMOVAL WASTE." Steklo i Keramika, no. 2 (2022): 12–19. http://dx.doi.org/10.14489/glc.2022.02.pp.012-019.
Full textAbstract:
The goal of the present contribution is to study the possible use of local clay of hydromica type for facing tile production. Pegmatite dust removal waste from the Chupa Milling and Dressing Factory was added as flux to the clay. Mineralogical, chemical and grain-size analyses of the clay and waste were performed. The mineral composition of the waste and clay were analyzed using the laboratory equipment of the Analytical Centre at the Institute of Geology, Karelian Research Centre, RAS. Experimental samples of ceramic tile were produced and the physico-mechanical properties of the products were assessed. The ceramics produced can be used for facing walls and furnaces. Local clay of hydromica type and pegmatite dust removal waste can be used to increase the mechanical bending strength and heat resistance of facing tiles, to decrease their thermal conductivity in comparison with samples containing clay, kaolin, feldspar and lime and to contribute to pegmatite waste utilization.
14
Buiskykh, Alla, Olha Puklina, and Tetiana Shevchenko. "On the Ceramic Imports from Sinope at Olbia Pontica (on the Example of Architectural Terracottas)." Arheologia, no. 1 (March 29, 2023): 40–51. http://dx.doi.org/10.15407/arheologia2023.01.040.
Full textAbstract:
In the paper architectural terracottas — facade elements of building ceramics, which were imported to Olbia from Sinope for the decorative design of the roofs of public and, presumably, residential buildings, are studied. In the Olbian collection, fragments from various structurally-different parts are selected. These are frontal antefixes in the shape of multi-pelated palmettes and gorgoneions, as well as simas with ovolos and meander motifs and zoomorphic downspouts in the shape of lion protomes. It has been established that the time of the maximum spread of the Sinopean import of construction ceramics in Olbia was in the Late Classical — Early Hellenistic period. Usually, the import of such parts did not extend to the 3rd century BC, although the duration of their usage, along with tiles, was longer, which is recorded by finds. The absolute majority of Sinopean architectural terracotta finds come from the territory of the Upper City and are probably related to public buildings. Olbia, along with Istria and Bosporan centres, especially Panticapaeum and Nymphaion, was an active consumer of these products. Olbia still lacks evidence of its own production of architectural terracottas, although the tile production imitating Sinopean types is known. This distinguishes Olbia from other centres of the Northern Black Sea region, in particular Chersonesos and Panticapaeum, which are known for their own manufacturing of such products, inspired by Sinope. A significant amount of tile decor of Sinopean origin confirms the importance of the Olbian market in the trade of ceramic building materials with this South Pontic centre.
15
Redlak, Małgorzata. "Egyptian imitations of Chinese celadon from the 13th–15th centuries from Kom el-Dikka in Alexandria." Polish Archaeology in the Mediterranean 26, no. 1 (2018): 59–84. http://dx.doi.org/10.5604/01.3001.0012.1769.
Full textAbstract:
In Islamic Egyptian glazed ceramics there are three ceramic types inspired by Chinese pottery, stoneware and porcelain: sancai pottery, celadon stoneware and Blue and White porcelain. Egyptian imitations of Chinese celadon ware, produced in the 14th and 15th centuries mainly by Cairene potters working at the Fustat workshops, are particularly noteworthy and the Kom el-Dikka site in Alexandria, excavated by the Polish Centre of Mediterranean Archaeology University of Warsaw, has yielded a collection of over 300 pieces. The typological analysis was based on 235 distinct fragments of utilitarian wares selected on account of their form, decorative elements, technical quality, possible technological defects and, first and foremost, characteristics that qualify them as imitations of Chinese celadon. Two typological ware groups were distinguished: those inspired by Chinese prototypes and those representing indigenous Egyptian ceramics infused with certain motifs copied from the Chinese celadons.
16
Noordin, Siti Noor Azila, Rusmadiah Anwar, and Nor Nazida Awang. "Positioning Ceramic Design Practices into Gallery-Based Creative Industries." Environment-Behaviour Proceedings Journal 7, SI7 (2022): 283–88. http://dx.doi.org/10.21834/ebpj.v7isi7.3794.
Full textAbstract:
Cognizant of the nature and need of a creative industries market. In ceramic, the diversity can be seen in the types of production and the scale of manufacture - from 'one-offs' to industrial manufacture. The scope and nature of arts incubators encompass the business-related knowledge, skills, and orientation needed by artists. The established methodologies for practice-based ceramic design research have led to the development of a realistic approach within this work which is both holistic and emergent. As result, a link between a practical philosophy of 'craft' practice and new approaches to the design highlighted a perception of the validity of 'craft' as a contemporary skill. Keywords: Ceramics; Design Practice; Creative Industries; Incubator. eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7iSI7%20(Special%20Issue).3794
17
Loy, Chee Wah, Khamirul Amin Matori, Norhazlin Zainuddin, et al. "Small Angle Neutron Scattering Study of a Gehlenite-Based Ceramic Fabricated from Industrial Waste." Solid State Phenomena 290 (April 2019): 22–28. http://dx.doi.org/10.4028/www.scientific.net/ssp.290.22.
Full textAbstract:
This paper presents a small angle neutron scattering (SANS) study of a novel porous gehlenite-based ceramic, synthesised from a homogeneous powder mixture of soda-lime-silicate (SLS) glass, α-alumina, calcite and calcium fluoride via solid-state sintering at 1200 °C. The products of sintering at single temperatures from 600 to 1200 °C are examined by X-ray diffraction (XRD). Sintering of the mixture below 1200 °C forms two intermediate phases (Na2CaSi3O8 and Ca4Si2O7F2). Nepheline and α-alumina are minor phases in the gehlenite-based ceramic fabricated through sintering at 1200 °C. The microstructure of the gehlenite-based ceramic is investigated using field-emission scanning electron microscopy (FESEM) and SANS at the Australian Centre for Neutron Scattering. This study also evaluated the specific surface area of the gehlenite-based ceramic (~3.0 m2 cm–3) from quantitative analysis of SANS data.
18
Bergschmidt, Philipp, Rainer Bader, Dirk Ganzer, et al. "Ceramic Femoral Components in Total Knee Arthroplasty - Two Year Follow-Up Results of an International Prospective Multi-Centre Study." Open Orthopaedics Journal 6, no. 1 (2012): 172–78. http://dx.doi.org/10.2174/1874325001206010172.
Full textAbstract:
Background:Total knee arthroplasty can be considered as a reliable surgical procedure with a good long-term clinical result. However, implant failure due to particle induced aseptic loosening as well as the aspect of hypersensitivity to metal ions still remains an emerging issue.Methods:The purpose of this prospective international multi-centre study was to evaluate the clinical and radiological outcomes and the reliability of the unconstrained Multigen Plus Total Knee System with a new BIOLOX® delta ceramic femoral component. Cemented total knee arthroplasty was performed on 108 patients (110 knees) at seven hospitals in three countries. Clinical and radiological evaluations were performed preoperatively, and after 3, 12 and 24 months postoperatively using the HSS-, WOMAC-, SF-36-score and standardised X-rays.Results:The mean preoperative HSS-Score amounted to 55.5 ± 11.5 points and improved significantly in all postoperative evaluations (85.7 ± 11.7 points at 24 months). Furthermore, improvements in WOMAC- and SF-36-score were evaluated as significant at all points of evaluation. Radiolucent lines around the femoral ceramic component at 24 months were found in four cases. Progression of radiolucent lines was not seen and no implant loosening was observed. During the 24 month follow-up eight patients underwent subsequent surgery due to reasons unrelated to the implant material.Conclusions:The observed clinical and radiological results are encouraging for a long-term survival of the ceramic femoral component. Therefore, ceramic implants could be a promising solution not only for patients with allergies against metallic implant materials, but also for the osteoarthritic knee joint. Long-term follow-up is necessary to draw conclusions regarding the superiority of the ceramic knee implants concerningin vivowear and long-term survivorship.
19
Kuscer, Danjela, Brigita Kmet, Silvo Drnovšek, Julien Bustillo, and Franck Levassort. "Lead-Free Sodium Potassium Niobate-Based Multilayer Structures for Ultrasound Transducer Applications." Sensors 22, no. 9 (2022): 3223. http://dx.doi.org/10.3390/s22093223.
Full textAbstract:
Thick films with nominal composition (K0.5Na0.5)0.99Sr0.005NbO3 (KNNSr) on porous ceramics with identical nominal composition were investigated as potential candidates for environmentally benign ultrasonic transducers composed entirely of inorganic materials. In this paper, the processing of the multilayer structure, namely, the thick film by screen printing and the porous ceramic by sacrificial template method, is related to their phase composition, microstructure, electromechanical, and acoustic properties to understand the performance of the devices. The ceramic with a homogeneous distribution of 8 μm pores had a sufficiently high attenuation coefficient of 0.5 dB/mm/MHz and served as an effective backing. The KNNSr thick films sintered at 1100 °C exhibited a homogeneous microstructure and a relative density of 97%, contributing to a large dielectric permittivity and elastic constant and yielding a thickness coupling factor kt of ~30%. The electroacoustic response of the multilayer structure in water provides a centre frequency of 15 MHz and a very large fractional bandwidth (BW) of 127% at −6 dB. The multilayer structure is a candidate for imaging applications operating above 15 MHz, especially by realising focused-beam structure through lenses to further increase the sensitivity in the focal zone.
20
Bene, Pasquale, Danilo Bardaro, Daniela Bello, and Orazio Manni. "Numerical Modeling and Experimental Characterization of the Pyroplasticity in Ceramic Materials during Sintering." Advances in Science and Technology 62 (October 2010): 203–8. http://dx.doi.org/10.4028/www.scientific.net/ast.62.203.
Full textAbstract:
The aim of the work is the study of the pyroplasticity in ceramic materials in order to simulate the deformations of complex ceramic component during sintering. A ceramic material undergoing densification can be treated as a linear viscous material. Generally, the viscosity decreases as the temperature increases, however the densification and the consequent grain growth, result in a viscosity increase. A bending creep test is proposed for measuring the change in viscosity of the ceramic material during densification. Equations, based on beam deflection theory, are derived to determine the viscosity during the whole firing cycle by measuring the deflection in the centre of specimens. In addition, dilatometric analyses are performed to measure the sintering shrinkage and the specimen density, which continuously changes during the sintering process. On the basis of an accurate experimental characterization the parameters of Maxwell viscoelastic constitutive law are derived. A numerical-experimental procedure has been adopted in order to calibrate the numerical model that, finally, has been used to predict the pyroplastic deformations of complex ceramic components.
21
Jia, Yu, Xin Tao Wang, Li Ping Shi, and Fei Xiang He. "Numerical Simulation on the Effects of Ceramic Particle Reinforcement Distribution on the Penetration of Functionally Graded Material Armor." Advanced Materials Research 581-582 (October 2012): 803–7. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.803.
Full textAbstract:
In this paper, LS-DYNA software was used to simulate the penetration of metal-ceramic functionally graded material armor made of Aluminum alloy reinforced by ceramic particle. The ceramic particle volume fraction varies from layer to layer along the armor thickness. The armor’s geometry of the calculation model considered was a four-sides-fixed supported square plate whose side length was far out weight its thickness. The penetrator considered was a long rod projectile, and it impacted the plate with three different speeds along the centre line of the plate. Three different armors with the same areal density were investigated. The results show that at relative low impact velocity, the ballistic resistance has very close relation with the gradient distribution of the armor. At relative high impact velocity, the ballistic resistance of functionally graded armors is not sensitive to the ceramic particle distribution. For the same areal density, the ballistic resistance of ceramic particle reinforced functionally graded armors is better than homogeneous aluminum alloy armor at any velocity situation.
22
Huang, Xue Gang, Zhong Min Zhao, and Long Zhang. "Ballistic Performance of TiC-TiB2 Composite Armour under the Impact of Long-Rod Tungsten Alloy Projectiles of 1.4 km · s-1." Key Engineering Materials 544 (March 2013): 310–15. http://dx.doi.org/10.4028/www.scientific.net/kem.544.310.
Full textAbstract:
Based on using combustion synthesis in high-gravity field to prepare the solidified TiC-TiB2 composites, the layered composites of the ceramic to Ti-6Al-4V at graded composition were achieved by fusion joint and atomic inter-diffusion between liquid TiC-TiB2 and Ti-6Al-4V substrate. The mechanical properties showed that the relative density, micro-hardness and fracture toughness of TiC-TiB2 ceramic layer measured 98.5%, 21.5 GPa and 13.5 ± 2.5 MPa • m0.5, respectively, and the shear strength at joint of TiC-TiB2 to Ti-6Al-4V measured 450 ± 25 MPa. By conducting DOP test to evaluate ballistic performance of the ceramic and layered-composite targets against long-rod KE projectiles at impact velocity of 1.4 km • s-1, it was obtained the mass efficiency 3.28 of the solidified TiC-TiB2 was achieved as the impact point of the projectile was nearby the centre of the target, whereas the mass efficiency 3.18 of the layered composite with the solidified ceramic to Ti-6Al-4V was also achieved even if the impact point of the projectile was at the edge of the target. By combining penetration damage of the targets with the dynamic behavior of the ceramic, it was obtained that the layered composite achieved by the joint of the solidified ceramic to Ti-6Al-4V not only improve ballistic performance of the ceramic, but also weaken the sensitivity of the ceramic target against the impact point of KE projectile by tearing the joint of the ceramic with Ti alloy to restrain formation and propagation of conical crack and fracture cone in the ceramic.
23
Loi-Brügger, A., S. Panglisch, P. Buchta, et al. "Ceramic membranes for direct river water treatment applying coagulation and microfiltration." Water Supply 6, no. 4 (2006): 89–98. http://dx.doi.org/10.2166/ws.2006.906.
Full textAbstract:
A new ceramic membrane has been designed by NGK Insulators Ltd., Japan, to compete in the drinking water treatment market. The IWW Water Centre, Germany, investigated the operational performance and economical feasibility of this ceramic membrane in a one year pilot study of direct river water treatment with the hybrid process of coagulation and microfiltration. The aim of this study was to investigate flux, recovery, and DOC retention performance and to determine optimum operating conditions of NGK's ceramic membrane filtration system with special regards to economical aspects. Temporarily, the performance of the ceramic membrane was challenged under adverse conditions. During pilot plant operation river water with turbidities between 3 and 100 FNU was treated. Membrane flux was increased stepwise from 80–300 l/m2h resulting in recoveries between 95.9 and 98.9%. A DOC removal between about 20–35% was achieved. The pilot study and the subsequent economical evaluation showed the potential to provide a reliable and cost competitive process option for water treatment. The robustness of the ceramic membrane filtration process makes it attractive for a broad range of water treatment applications and, due to low maintenance requirements, also suitable for drinking water treatment in developing countries.
24
Chen, S., D. Li, M. Wang, and D. Wei. "Fabrication of a point defect photonic crystal based on diamond structure with a cavity and its microwave properties." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 11 (2011): 2071–77. http://dx.doi.org/10.1177/0954405411398760.
Full textAbstract:
This paper presents a novel fabrication method for three-dimensional (3D) ceramic point defect photonic crystals. The 3D defect photonic crystal, which possesses an air cavity, has been designed by cutting a rectangular shape (3.5 mm × 3.5 mm × 7 mm) in the centre of a photonic crystal with a diamond lattice structure model (50 mm × 30 mm × 20 mm) with a lattice constant of 7 mm. Stereolithography (SL) technology was applied to fabricate resin moulds with an inverse-diamond structure incorporating the defect, and high solid content aqueous ceramic slurry was prepared and injected into the moulds. After gel-casting, drying, and high-temperature sintering, ceramic 3D photonic crystals with intact structure and minimal shrinkage were obtained. The penetration of an electric field with resonant modes of about 3 mm into the host lattice was observed by measuring the <110> direction of the samples, which resulted from the rectangular air cavity resonator. The results show that this method can be used to fabricate ceramic 3D point defect photonic crystals with a complex 3D structure.
25
Pius., DR OTIMEYIN, and DR OSARIYEKEMWEN Daniel. "Triaxial Testing of Okpella Granite with Kaolinite Material to Achieve Workable Ceramic Refractory." International Journal of Research and Scientific Innovation XI, no. VI (2024): 427–39. http://dx.doi.org/10.51244/ijrsi.2024.1106034.
Full textAbstract:
The use of locally sourced materials towards meeting our local needs is inevitable in this era of recession, especially in Nigeria. There is the urgent need to discourage the extreme and awkward dependence of local potters and ceramists on imported materials and ceramic items so as to profound substitute-able solutions to the challenges facing the country’s ceramic production. Local alternative to the sustenance and survival of the ceramic industry is paramount especially to the developmental and technological growth of our economy. It is this quest that necessitated the need for a research development and documentation of locally sourced refractory materials using three materials namely Granite, Ball Clay and Kaolin. These were compounded to derive working formula for a workable refractory in ceramic production, after a series of tests on different formulae. The result analyses from the Centre for Energy Research and Training, (CERT) Ahmadu Bello University, Zaria in Nigeria shows a relatively high percentage of refractoriness as found in Silicon Dioxide which in Granite was 50.7 percent, Ball Clay 61.2 percent and Kaolin 42.4 percent.
26
Ida, Tiwari, Singh Manorama, and P. Singh K. "Fabrication, characterization and application of carbon ceramic nanocomposite prepared by using multiwalled carbon nanotubes and organically modified sol-gel glasses." Journal of Indian Chemical Society Vol. 91, Sep 2014 (2014): 1793–98. https://doi.org/10.5281/zenodo.5733768.
Full textAbstract:
Department of Chemistry (Centre for Advanced Study), Faculty of Science, Banaras Hindu University, Varanasi-221 005, Uttar Pradesh, India <em>E-mail</em> : idatiwari_2001@rediffmail.com Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur-495 009, Chhattisgarh, India <em>E-mail</em> : manoramabhu@gmail.com <em>Manucript received online 18 January 2014, revised 25 February 2014, accepted 01 March 2014</em> We herein report the development of carbon ceramic nanocomposite nanoelectrodes by incorporation of multiwalled carbon nanotubes (MWCNTs) in organically modified sol-gel glass (Ormosil) matrix which is derived from silane precursors, 3-glycidoxypropyltrimethoxysilane, tetraethoxysilane and 3-aminopropyltrimethoxysilane. The different ratios of the silanes precursors, temperature, and gelation time were all optimized in order to obtain a stable and reproducible film. The ceramic composite was modified with the incorporation of MWCNTs, a redox mediator ferricyanide and the enzyme Horseradish peroxidase (HRP). Characterization of the ceramic composite was performed with scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM) and cyclic voltammetry (CV). The ceramic composite sensor was explored towards the sensing of hydrogen peroxide providing a useful electroanalytical performance.
27
Furu, Trond, and Idar Kjetil Steen. "Hydro Casthouse Reference Centre." Materials Science Forum 630 (October 2009): 9–16. http://dx.doi.org/10.4028/www.scientific.net/msf.630.9.
Full textAbstract:
Since October 2006 the Hydro Casthouse Reference Centre has been operating. The centre is a full scale state of the art pilot casting centre for extrusion ingot, sheet ingot and foundry alloys, consisting of a 17Mtons furnace with a metal loop, a launder system including modular in-line melt treatment units such as ceramic foam filters (CFF) and inline melt refining units (Hycast SIR) and a casting pit with the possibility to cast full size geometries and a casting length of 5.5m. A two strand horizontal casting machine further adds the possibility of continuous casting of extrusion ingot and foundry alloy ingot. The centre has a state of the art superior control system (SCS) and a lay-out, including control room facilities, well suited for training and demonstration purposes. In addition the centre has access to state of the art software codes for simulating the casting process (Alsim) and the as cast microstructure (Alstruc). The present paper gives some examples on how the centre is operating and the support that is offered to casthouses in Hydro. This includes (i) simulation of the casting processes (hot tearing and as cast structures) applying the Alsim and Alstruc codes, (ii) pilot scale testing of casting and melt treatment equipment, (iii) testing of new parameters and procedures for melt treatment and casting (iv) production of trial orders of new alloys and (v) practical training of casthouse operators (basic for molten metal handling, emergency situations and response, casting principles and trouble shooting, etc.).
28
Klimecs, Vadims, Alexanders Grishulonoks, Ilze Salma та ін. "Bone Loss around Dental Implants 5 Years after Implantation of Biphasic Calcium Phosphate (HAp/βTCP) Granules". Journal of Healthcare Engineering 2018 (5 грудня 2018): 1–7. http://dx.doi.org/10.1155/2018/4804902.
Full textAbstract:
Biphasic calcium phosphate ceramic granules (0.5–1.0 mm) with a hydroxyapatite and β-tricalcium phosphate ratio of 90/10 were used. Biphasic calcium phosphate ceramic granules produced in the Riga Technical University, Riga Rudolph Cimdins Biomaterials Innovation and Development Centre, were used for filling the bone loss on 18 patients with peri-implantitis. After 5 years at the minimum, clinical and 3D cone-beam computed tomography control was done. Clinical situation confirmed good stability of implants without any signs of inflammation around. Radiodensity of the previous gap and alveolar bone horizontally from middle point of dental implants showed similar radiodensity as in normal alveolar bone. This trial is registered with ISRCTN13514478.
29
Luțcanu, Marian, Ramona Cimpoeșu, Mărioara Abrudeanu, et al. "Mechanical Properties and Thermal Shock Behavior of Al2O3-YSZ Ceramic Layers Obtained by Atmospheric Plasma Spraying." Crystals 13, no. 4 (2023): 614. http://dx.doi.org/10.3390/cryst13040614.
Full textAbstract:
Ceramic coatings have many advantages for industrial and medical applications due to their exceptional properties. Ceramic coatings with a thickness of approximately 45 μm, after grinding, were grown using a robotic arm that used the atmospheric plasma spraying procedure. The thermal shock stresses—a common situation in applications but difficult to reproduce under laboratory conditions—of the ceramic layers on top of the metal substrate was achieved using solar energy focused by a concentrating mirror, based on experiments conducted in the CNRS-PROMES laboratory, UPR 8521, belonging to the French National Centre for Scientific Research (CNRS). The ceramic layers showed excellent stability at 1000 °C, even at high heating or cooling rates. At high temperatures (above 1800 °C), the exfoliation of the complex ceramic layer was observed. No differences in the structural, phase, mechanical or adhesion properties of the ceramic layer were observed after the thermal shock cycles (in the literature, there have been quite few reports regarding the properties of the ceramic layers after the thermal shock application). Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), atomic force microscopy (AFM) and X-ray diffraction (XRD) techniques were used to characterize the complex ceramic coating and the effects of thermal shock cycling. The phases and chemical composition of the complex coatings remained similar, insensitive to thermal shock at 1000 °C, consisting of a mixture of crystalline yttrium zirconium oxide and α and γ alumina. For all cases, the main residual stress state was tensile. After 5 or 10 cycles of thermal shocks, a smoothing of the residual stress state was observed in the investigated area. A higher temperature (above 1800 °C), applied as thermal shock, led to higher residual stresses and resulted in large cracks and the spallation of the coating layer.
30
Lundy, Jasmine, Lea Drieu, Antonino Meo, et al. "New insights into early medieval Islamic cuisine: Organic residue analysis of pottery from rural and urban Sicily." PLOS ONE 16, no. 6 (2021): e0252225. http://dx.doi.org/10.1371/journal.pone.0252225.
Full textAbstract:
Sicily, during the 9th-12th century AD, thrived politically, economically, and culturally under Islamic political rule and the capital of Palermo stood as a cultural and political centre in the Mediterranean Islamic world. However, to what extent the lifeways of the people that experienced these regimes were impacted during this time is not well understood, particularly those from lesser studied rural contexts. This paper presents the first organic residue analysis of 134 cooking pots and other domestic containers dating to the 9th -12th century in order to gain new insights into the culinary practices during this significant period. Ceramics from three sites in the urban capital of Palermo and from the rural town of Casale San Pietro were analysed and compared. The multi-faceted organic residue analysis identified a range of commodities including animal products, vegetables, beeswax, pine and fruit products in the ceramics, with a complex mixing of resources observed in many cases, across all four sites and ceramic forms. Alongside the identification of commodities and how they were combined, new light has been shed on the patterning of resource use between these sites. The identification of dairy products in calcite wares from the rural site of Casale San Pietro and the absence of dairy in ceramics from the urban centre of Palermo presents interesting questions regarding the role of rural sites in food consumption and production in Islamic Sicily. This is the first time organic residue analysis of ceramics has been used to explore foodways in a medieval multi-faith society and offers new pathways to the understanding of pottery use and resources that were prepared, consumed and combined, reflecting cuisine in different socio-economic environments within the pluralistic population of medieval Sicily.
31
Derevich, I. V., and A. Yu Fokina. "Mathematical modelling of thermal microexplosion in a catalyst granule with point sources of heat release." Journal of Physics: Conference Series 2150, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1742-6596/2150/1/012027.
Full textAbstract:
Abstract A mathematical model of heat and mass transfer in a spherical catalyst granule is proposed. Exothermic synthesis reactions are carried out on point active centres located inside a porous ceramic granule. From the surface of the granule the heat of catalytic reactions is removed into liquid synthesis products. The rate of a chemical reaction is modelled by a modified Arrhenius law. In contrast to the homogeneous model of a catalytic granule methods for calculating heat transfer processes in a system of point, active centres do not develop. An iterative procedure is suggested to calculate the unknown temperature and concentration of the reagent at the active centre. It is shown that the temperature of the active centres is significantly higher than in the volume of the granule. The results of modelling a thermal explosion with increasing granule size and reactor temperature are presented.
32
den Besten, Liesbeth. "The Ghosts of Sunday Morning: 50 Years of European Ceramic Work Centre (EKWC)." Journal of Modern Craft 12, no. 2 (2019): 185–89. http://dx.doi.org/10.1080/17496772.2019.1620441.
Full text
33
Kim, I. H., D. Y. Jang, W. J. Kim, and D. C. Han. "In-process sensing of tool wear and process states using a cylindrical displacement sensor in hard turning." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 215, no. 12 (2001): 1673–82. http://dx.doi.org/10.1177/095440540121501202.
Full textAbstract:
A cylindrical capacitance-type spindle displacement sensor was developed and its effectiveness as a system for monitoring cutting conditions during hard turning was tested in this research. The sensor was installed between the face of the spindle cover and the chucking element, and measured pure radial motion of the spindle under conditions of roundness error at the measured surface. To prove the effectiveness of the developed system, hard-turning tests using ceramic inserts and with tool steel as the workpiece were conducted. The workpiece was hardened up to 65 Rc. The variations in pure radial motion of the spindle were measured during the cutting tests. The signals from the sensor showed the same pattern of cutting force variations from the tool dynamometer due to the progress of tool wear. As the flank wear of the ceramic tool increased, both the static component of the cutting forces and the centre shift of the spindle orbit increased. Results from the research showed that the developed sensor could be utilized as an effective and cheap on-line sensing device to monitor cutting conditions and tool performance in the unmanned machining centre.
34
Zhang, Pu Liang, Bin Liu, Dong Zhang, Yong Wei Tao, Sheng Rong Yang, and Jin Qing Wang. "Ceramic Coatings of Magnesium Alloy for Biomaterial Applications." Key Engineering Materials 434-435 (March 2010): 634–37. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.634.
Full textAbstract:
Ceramic coatings were produced on magnesium (Mg) alloy of AZ91D for biomaterial applications by micro-arc oxidation (MAO) and electrodeposition methods. The morphology, microstructure, phase composition and corrosion properties of the prepared coatings were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and potentiodynamic polarization tester, etc. The results indicated that a porous oxide layer was grown on the Mg alloy sheets after MAO process and the compositions of oxides were mainly Mg2SiO4 and MgO. After further electrodeposition and alkaline treatment, a flake-like structure diverging from centre to periphery was grown on the MAO coating and the coating was mainly made up of hydroxyapatite (HA). Moreover, the corrosion resistance of the Mg alloy after being treated with MAO and electrodeposition technique increases obviously, which was evaluated in stimulated body fluid (SBF).
35
Sinamo, Sopan, Mourent Miftahullaila, and Hendrik Steven. "Capability of Rice Husk Silica on Flexural Improvement in Metal Ceramic Restoration." Bioscientia Medicina : Journal of Biomedicine and Translational Research 6, no. 5 (2022): 1703–7. http://dx.doi.org/10.37275/bsm.v6i5.500.
Full textAbstract:
Background: Metal ceramic restoration (MCR) is a gold standard due to its ability to withstand masticatory forces and aesthetics. However, it frequently appears to experience a fracture in the oral cavity. The ceramics in MCR consist of an opaque dentin and enamel layer, which contain silica to give the ceramic strength. Silica is an abundant material, mainly synthesized from rice husks. The study was aimed to investigate the effect of silica added to commercially opaque porcelain powder in increasing the flexural strength of MCR.
 Methods: The research sample was rectangular Co-Cr metal [(25±1) mm × (3±0.1) mm × (0.5 ± 0.05) mm], and opaque porcelain powder and dentin [(8±0.1) mm× (3±0.1) mm ×(1.1±0.1) mm]. White silica powder was synthesized from rice husk by sonication for 270 minutes, characterized by x-ray fluorescence (XRF). Silica was mixed with commercial opaque porcelain powder with various concentrations of 0, 0.5, and 1%, porcelain coating procedure on the centre of the surface metal, followed by sintering at 9500C.
 Results: Characterization with XRF showed that the elemental content of pure silica was 83.9%. The average flexural strength value with three-point bending in each sample is 109.67±12.163; 131.26±3.817; and 108.35±4.26. The results of statistical tests using One Way ANOVA stated a significant increase in the flexural strength of MCR (p<0.05) post added the rice husk silica to the commercial opaque porcelain powder.
 Conclusion: Adding 0.5% silica resulted in the optimal flexural strength of MCR.
36
Shahi, Shivdev, and Gagandeep Kaur. "Mathematical modelling of creep transition in structural components composed of titanate ceramics fabricated as annular rotating discs." Structural Integrity and Life 24, no. 3 (2024): 323–29. https://doi.org/10.69644/ivk-2024-03-0323.
Full textAbstract:
Analytical characterization of creep stresses and strains in annular ceramic discs experiencing high centrifugal forces is of much significance in the theory of structural components. In this paper transition theory has been incorporated to obtain these stresses and strains in ceramic discs which exhibit transversely isotropic macro structural symmetry and having a bore at the centre on which it rotates. Yield criteria from the classical theory are not assumed for the analysis. The creep transition stresses are obtained by transition theory. The analytical solution is applied on ceramic discs. Stiffness constants are obtained by ultrasonic wave propagation method. Analytical solution results are plotted graphically. It is observed that the centrifugal forces increase the magnitude of radial and circumferential stresses at the internal surface of discs. Strains are maximal at internal surface and diminish toward the outer surface. The rise in strains proportional to increasing angular speed infers to the fact that the disc will tend to fracture at the bore adjoining the inclusion when subjected to higher centrifugal forces.
37
Ahmad, Gulzar, Asif Sultan, Muhammad Inayatullah Khan Babar, and Muhammad Irfan Khattak. "DESIGN OF A PRACTICALLY FABRICATED MINIATURE SIZE PATCH ANTENNA." NED University Journal of Research XVI, no. 2 (2019): 43–52. http://dx.doi.org/10.35453/nedjr-ascn-2018-0066.
Full textAbstract:
This paper presents the results of simulation and experimental investigations on a locally fabricated patch antenna using a high dielectric ceramic (alumina) substrate. The antenna was designed for a centre frequency of 6.32 GHz within C-Band which was excited using micro-strip line feed. The bandwidth of the simulated antenna was achieved as 66.1 MHz with a return loss of 21.7 dB at the centre resonant frequency. The observed resonance frequency at the centre was found to be 6.32 GHz with a return loss of 37.55 dB for the locally fabricated antenna. The -10 dB bandwidth of the fabricated design was determined as 251 MHz. Impedance presented at central frequency was 51.2 ohm that indicates an outstanding impedance-matching between antenna and feed line. The obtained results indicate that the fabricated antenna is suitable for its applications in C-band.
38
Postgate, J. N. "The ceramics of centralisation and dissolution: a case study from Rough Cilicia." Anatolian Studies 57 (December 2007): 141–50. http://dx.doi.org/10.1017/s0066154600008565.
Full textAbstract:
AbstractStarting from Kilise Tepe in the Göksu valley north of Silifke two phenomena in pre-Classical Anatolian ceramics are examined. One is the appearance at the end of the Bronze Age, or beginning of the Iron Age, of hand-made, often crude, wares decorated with red painted patterns. This is also attested in different forms at Boğazköy, and as far east as Tille on the Euphrates. In both cases it has been suggested that it may reflect the re-assertion of earlier traditions, and other instances of re-emergent ceramic styles are found at the end of the Bronze Age, both elsewhere in Anatolia and in Thessaly. The other phenomenon is the occurrence of ceramic repertoires which seem to coincide precisely with the frontiers of a polity. In Anatolia this is best recognised in the case of the later Hittite Empire. The salient characteristics of ‘Hittite’ shapes are standardised, from Boğazköy at the centre to Gordion in the west and Korucu Tepe in the east. This is often tacitly associated with Hittite political control, but how and why some kind of standardisation prevails has not often been addressed explicitly. Yet this is a recurring phenomenon, and in first millennium Anatolia similar standardised wares have been associated with both the Phrygian and the Urartian kingdoms. This paper suggests that we should associate it directly with the administrative practices of the regimes in question.
39
Sullenger, D. B., J. S. Cantrell, T. A. Beiter, and D. W. Tomlin. "On the Preparation of Good Quality X-ray Powder Patterns." Advances in X-ray Analysis 32 (1988): 561–67. http://dx.doi.org/10.1154/s0376030800020917.
Full textAbstract:
For several years we have prepared and submitted a variety of quality powder x-ray diffraction patterns to the International Centre for Diffraction Data (ICDD) for inclusion as reference standards in their Powder Diffraction File (PDF). Patterns submitted and/or currently under development include metal hydrides (inorganics), flavanoids and related compounds (organics), organic compounds involved in pollution (e.g., dioxins), explosives (organics and metal organics) and glass-ceramic phases (inorganics).
40
Gregora, I., J. Petzelt, J. Petzelt, et al. "Raman spectroscopy of the zone centre improper ferroelastic transition in ordered complex perovskite ceramic." Solid State Communications 94, no. 11 (1995): 899–903. http://dx.doi.org/10.1016/0038-1098(95)00192-1.
Full text
41
Saiful Johari, Saiful Aiman Asraf, and Mohamad Rizal Salleh. "The Meaning Making from Childhood Drawing into 3D Ceramic Art Form." Environment-Behaviour Proceedings Journal 7, SI7 (2022): 331–35. http://dx.doi.org/10.21834/ebpj.v7isi7.3798.
Full textAbstract:
This paper will discuss the meaning-making from a childhood drawing into 3D ceramic art. As well as that, it endures with the theme of childhood memories where it will expose the sentimental values of childhood drawings created back then. Affirmation, this research will also reveal the aesthetic developed in the childhood drawing from the past and celebrate it into a new body of art by recreating it into ceramic art. In addition, this paper will also reveal the relation between childhood drawing with faux naive art as the term of the nativity in the childhood characters. Keywords: meaning-making, childhood drawing, ceramic art, faux naive art. eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7iSI7%20(Special%20Issue).3798
42
Noordin, Siti Noor Azila, Syaza Abdul Rahim, Verly Veto Vermol, Zuraidy Abd Rahim, and Diana Mohamed Raif. "Designing Ceramic Tureen Surface Pattern through the Influence of Malaysian Batik." Environment-Behaviour Proceedings Journal 7, SI9 (2022): 439–43. http://dx.doi.org/10.21834/ebpj.v7isi9.4293.
Full textAbstract:
Ceramic Tureen refers to the ‘serving ware' that are widely used in Malaysian community. On the other hand, the surface decoration increases aesthetic value of the ‘serving ware' especially in promoting the local contexts and meaning. However, this local context design in regard to tureen surface design is being over shadowed by European style and identity design pattern. This study is to associate the tureen with local context design of batik character by introducing batik as an idea to pattern design. Batik pattern design will be applied on the ceramic tureen ‘serving ware'.
 Keywords: Surface Pattern, Batik Pattern, Ceramic Tureen
 eISSN: 2398-4287© 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
 DOI
43
Jack, David, and Stuart Hampshire. "Kenneth Henderson Jack. 12 October 1918—28 January 2013." Biographical Memoirs of Fellows of the Royal Society 69 (September 16, 2020): 247–72. http://dx.doi.org/10.1098/rsbm.2020.0026.
Full textAbstract:
For all but 5 of his 94 years Kenneth Henderson Jack lived, studied, and worked within 10 miles of where he was born, in the North-East of England. Educated in chemistry, he became an X-ray crystallographer. He applied his knowledge of chemistry and his skills in crystallography to the three main areas of materials science: metals, glasses and ceramics. In the 1940s and 1950s he carried out classic studies of the interstitial alloys of the iron–carbon–nitrogen system; between 1957 and 1964, when he worked in industry, he made seminal contributions to glass technology; from 1964 onwards he pioneered a whole new field of oxy-nitride ceramics and glasses, the sialons, and by doing so put his beloved North-East firmly on the international map as a centre of excellence in ceramic science. Ken Jack was fond of saying that, had it not been for World War II, which interrupted his teacher training and took him into university research, he would probably have remained a school teacher and been happy to do so. But, in fact, he did remain a teacher. He was an inspiring lecturer and the researchers who learned their trade by his example went on to lead academic and industrial research groups around the world.
44
Rațiu, Alexandru, and Ioan Carol Opriș. "Samian Ware in Early Roman Contexts at Capidava." Cercetări Arheologice 30, no. 2 (2023): 651–68. http://dx.doi.org/10.46535/ca.30.2.14.
Full textAbstract:
The present paper is part of a series of publications related to the research carried out in the last decade in the early Roman contexts from Capidava (Constanța County), as well. The subject of the article is a batch of 17 fragmentary ceramic vessels, belonging to the terra sigillata category. Of these, the first 16 items (Cat. nos. 1-16) are fragments of imported vessels produced in the famous ceramic production centre of La Graufesenque, in South Gaul. The last vessel, Cat. no. 17, is of local production, from the category called Pontic sigillata decorated by the barbotine technique. The entire batch of ceramic material was discovered during the archaeological excavation carried out at the Late Roman headquarters building (principia), during which the foundations of this building were also excavated. Beneath these foundations were discovered the ruins of an early Roman habitation level represented by military barracks-type buildings, a stone-paved street, a well, a rubbish pit and a waste drain that led to that pit. The material presented by us comes from this earliest context, respectively from all the urban planning elements listed above, especially from the waste drain and the rubbish pit. The dating of the material is early, namely the Flavian era until the end of Trajan’s reign. From this point of view, the ceramic material presented here completes the picture provided by other categories of material previously published from the same archaeological context.
45
Mahon, John, Cathal Jack McCarthy, Gerard A. Sheridan, James P. Cashman, John M. O'Byrne, and Paddy Kenny. "Outcomes of the Exeter V40 cemented femoral stem at a minimum of ten years in a non-designer centre." Bone & Joint Open 1, no. 12 (2020): 743–48. http://dx.doi.org/10.1302/2633-1462.112.bjo-2020-0163.r1.
Full textAbstract:
Aims The Exeter V40 cemented femoral stem was first introduced in 2000. The largest single-centre analysis of this implant to date was published in 2018 by Westerman et al. Excellent results were reported at a minimum of ten years for the first 540 cases performed at the designer centre in the Exeter NHS Trust, with stem survivorship of 96.8%. The aim of this current study is to report long-term outcomes and survivorship for the Exeter V40 stem in a non-designer centre. Methods All patients undergoing primary total hip arthroplasty using the Exeter V40 femoral stem between 1 January 2005 and 31 January 2010 were eligible for inclusion. Data were collected prospectively, with routine follow-up at six to 12 months, two years, five years, and ten years. Functional outcomes were assessed using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores. Outcome measures included data on all components in situ beyond ten years, death occurring within ten years with components in situ, and all-cause revision surgery. Results A total of 829 stems in 745 patients were included in the dataset; 155 patients (20.8%) died within ten years, and of the remaining 664 stems, 648 stems (97.6%) remained in situ beyond ten years. For the 21 patients (2.5%) undergoing revision surgery, 16 femoral stems (1.9%) were revised and 18 acetabular components (2.2%) were revised. Indications for revision in order of decreasing frequency were infection (n = 6), pain (n = 6), aseptic component loosening (n = 3), periprosthetic fracture (n = 3), recurrent dislocation (n = 2), and noise production (ceramic-on-ceramic squeak) (n = 1). One patient was revised for aseptic stem loosening. The mean preoperative WOMAC score was 61 (SD 15.9) with a mean postoperative score of 20.4 (SD 19.3) (n = 732; 88.3%). Conclusion The Exeter V40 cemented femoral stem demonstrates excellent functional outcomes and survival when used in a high volume non-designer centre. Outcomes are comparable to those of its serially validated predecessor, the Exeter Universal stem. Cite this article: Bone Jt Open 2020;1-12:743–748.
46
German, Konstantin Enrikovich. "The Sperrings culture (current state of study)." Samara Journal of Science 7, no. 3 (2018): 225–30. http://dx.doi.org/10.17816/snv201873214.
Full textAbstract:
The following paper deals with the study of the Sperrings culture. More than a decade has passed since the last general publications on early Neolithic of Karelia. During this period, new sites of the Sperrings culture have been discovered and studied, first AMS-dating has been received from the ceramic fragments, monuments of the early Neolithic in the neighboring territories have been studied. As a result of two decades of the archaeological research in Karelia more than a dozen of new monuments were discovered and investigated, including poorly explored areas of the Northern Ladoga and Karelian isthmus. The Sperrings culture centre is the Onega lake basin, where more than 200 settlements are known. The existence period of the Sperrings culture in the Onega lake basin on the basis of AMS-dates is 5306-4250 cal BC. These data are also consistent with AMS-dating of bones of Koirinoya III settlement in the North Ladoga area. The Sperrings ceramics appeared on the territory of Karelia at the same time.
47
Fusaro, Agnese, Josep Maria Gurt Esparraguera, Enrique Ariño Gil, Paula Uribe Agudo, Jorge Angás Pajas, and Shakir R. Pidaev. "Islamic ancient Termez: An active and long-established ceramic manufacturing centre along the silk road." Archaeological Research in Asia 31 (September 2022): 100375. http://dx.doi.org/10.1016/j.ara.2022.100375.
Full text
48
Mohd Aris, Khairul Nizan, Verly Veto Vermol, Zuraidy Abdul Rahin, and Intan Nor Firdaus Muhammad Fuad. "Ceramic Raku Practice through the Context of Islamic Art Practice in Malaysia." Environment-Behaviour Proceedings Journal 7, SI9 (2022): 433–38. http://dx.doi.org/10.21834/ebpj.v7isi9.4292.
Full textAbstract:
In contemporary Malaysian art, the concept of authenticity has faced a dilemma, which emerges from ambivalence in the Malay/Muslim community in their belief towards the issues of representation in Islamic art practice. This research will attempt to answer the questions raised in addressing the dilemma of ceramic Raku; a traditional Japanese Ceramic firing practice through the context of Islamic art practice in Malaysia observed as contemporary Malaysia art.
 Keywords: Raku; Practice; Islamic Art; CeramicÂÂ
 eISSN: 2398-4287© 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
 DOI
49
Indradjaja, Agustijanto, and Eka Asih Putrina Taim. "23 – Ancient Coastal Settlements in South Sumatra: The Margomulyo and Sugihwaras Sites." Archipel Hors-Série n° 4 (2024): 405–12. https://doi.org/10.4000/13q78.
Full textAbstract:
Research carried out by the National Centre for Archaeological Research (Puslitarkenas) on the east coast of the South Sumatra Province is part of a series of long-term research on the history of Śrīvijaya in Sumatra. Until 2010, research focused on the southern part of the Sugihan river system, then research moved toward its northern part, especially in the villages of Margomulyo and Sugihwaras in the subdistrict of Muara Sugihan, itself belonging to the regency of Banyuasin. Excavations conducted at Margomulyo yielded remains of stilts, boat remains and fragmentary paddles, fragments of braided cords made of sugar palm fibres, earthenware, ceramic, and glass shards. Excavations undertaken at Sugihwaras yielded the same types of finds, as well as a wooden figurine, a wooden architectural ornament, three metal finds, and a relatively large number of faunal remains. Based on the ceramic finds and radiocarbon datings, both sites can be provisionnaly dated between the ninth/tenth and the sixteenth/seventeenth centuries CE.
50
Zhang, Yan Ming, Jia Nan Wang, and Yu Ting Cai. "Compact Wideband Fourth-Order LTCC Filter Using LC Resonators." Applied Mechanics and Materials 602-605 (August 2014): 2654–57. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.2654.
Full textAbstract:
A compact LTCC filter using LC resonators is presented. The resonator is made up of the multilayer capacitors and inductors, which are printed on multilayer ceramic. Four resonators are exploited, which makes the filter have wide passband. By properly controlling the coupling elements of each resonator, two transmission zeros can be located at both sides of the passband for better selectivity. Measured results show a bandwidth of more than 47.2%, where the centre frequency is 1.25GHz. The whole size of the filter is 4.5×3.2×1.7mm3.