Reconstructing the Firing and Pigment Processing Technologies of Corinthian Polychrome Ceramics, 8-6th Centuries B.C.E.

MRS Advances ◽  
2017 ◽  
Vol 2 (35-36) ◽  
pp. 1889-1909
Author(s):  
Catherine Klesner ◽  
Jay A. Stephens ◽  
Emilio Rodriguez-Alvarez ◽  
Pamela B. Vandiver
Keyword(s):  
Firing Temperature ◽  
Raw Materials ◽  
Economic Value ◽  
Analytical Techniques ◽  
Ceramic Technology ◽  
Raw Material ◽  
Detailed Knowledge ◽  
Material Particle ◽  
Processing Technologies ◽  
Firing Range

ABSTRACTDecorative, polychrome ceramics from Corinth, Greece, produced during the 8th-6th centuries B.C.E. were luxury goods widely traded throughout Greece and the Mediterranean. Corinthian pottery is the first 5-color polychrome ceramic technology, having slip-glazes in distinctive white, black, red, yellow, and purple colors, and in a variety of surface finishes from glossy, to semi-matte, to matte. The firing temperature range, 925-1075°C, was determined experimentally to be to be higher than previously reported, similar to the Corinthian amphorae and other ceramic products. This firing range is higher than that of the better known, more prestigious Athenian Black-figure and Red-figure ceramics. In this study three examples of Corinthian and one example of Athenian Black-figure ceramics from the Marie Farnsworth collection at the University of Arizona were tested and compared to thirteen clays from Corinth. Analytical techniques included Fourier-transform infrared spectroscopy (FTIR), scanning-electron microscopy with energy-dispersive spectroscopy (SEM-EDS), micro-Raman spectroscopy, and wavelength-dispersive electron microprobe (EPMA with BSE-SEM).Artisans in Corinthian workshops experimented to change the colors of the slips by varying the type and amount of iron-rich raw material, as well as the composition of the clay used as a binder and the amount of flux used as a sintering aid to promote glass formation. Corinthian artisans developed not only different recipes to produce the various colors, but also they were able to control raw-material particle size and composition to produce variations in surface luster (matte, semi-matte and glossy). This research suggests that Corinthian polychrome-slip technology was based on careful control of particle processing, of compositional control of raw materials and their admixtures, and of firing temperature. The behavior or practice of adding different ratios of pigments and glass-forming fluxes to form various optical effects implies a detailed knowledge of what happens when these are heated and fired. This is a process of experimentation focused on developing a distinctive craft practice, which produced a distinctive and highly valued material. The Corinthians developed a more complex, easily recognizable, and culturally distinctive ceramic technology that was intentionally established as a cultural brand, and probably as a luxury brand of high socio-economic value. This research deepens our understanding of the complex pigment processing and firing technologies employed in the production of Corinthian ceramics.

scholarly journals Mineralogical Characterization and Firing Temperature Delineation on Minoan Pottery, Focusing on the Application of Micro-Raman Spectroscopy

Heritage ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 2652-2664 ◽  
Author(s):  
E. Grammatikakis ◽  
Kyriakidis ◽  
D. Demadis ◽  
Cabeza Diaz ◽  
Leon-Reina
Keyword(s):  
Bronze Age ◽  
Firing Temperature ◽  
Raw Materials ◽  
Morphological Characteristics ◽  
Ceramic Technology ◽  
Phase Identification ◽  
Mineralogical Characterization ◽  
Analytical Protocol ◽  
Crucial Information ◽  
Analytical Tools

Ceramic objects in whole or in fragments usually account for the majority of findings in an archaeological excavation. Thus, through examination of the values these items bear, it is possible to extract important information regarding raw materials provenance and ceramic technology. For this purpose, either traditional examination protocols could be followed, focusing on the macroscopic/morphological characteristics of the ancient object, or more sophisticated physicochemical techniques are employed. Nevertheless, there are cases where, due to the uniqueness and the significance of an object of archaeological value, sampling is impossible. Then, the available analytical tools are extremely limited, especially when molecular information and mineral phase identification is required. In this context, the results acquired from a multiphase clay ceramic dated on Early Neopalatioal period ΜΜΙΙΙΑLMIA (1750 B.C.E.–1490 B.C.E.), from the Minoan Bronze Age site at Philioremos (Crete, Greece) through the application of Raman confocal spectroscopy, a nondestructive/ noninvasive method are reported. The spectroscopic results are confirmed through the application of Xray microdiffraction and scanning electron microscopy coupled with energy dispersive Xray spectrometry. Moreover, it is demonstrated how it is made possible through the application of microRaman (μRaman) spectroscopy to examine and collect crucial information from very small inclusions in the ceramic fabric. The aim of this approach is to develop an analytical protocol based on μRaman spectroscopy, for extracting firing temperature information from other ceramic finds (figurines) where due to their uniqueness sampling and analyses through other techniques is not possible. This information can lead to dating but also to firing kiln technology extrapolations that are very significant in archaeology.

scholarly journals Reforestation of ‘Village Forest’ to Improve Sustaiability Creative Industries in Desa Siponjot

2021 ◽  
Vol 5 (2) ◽  
pp. 714-722
Author(s):  
Noverita Sprinse Vinolina ◽  
Antonio Marro Sipayung ◽  
Dardanila ◽  
Sondang Pintauli
Keyword(s):  
Forest Restoration ◽  
Raw Materials ◽  
Economic Value ◽  
Economic Benefits ◽  
Musical Instruments ◽  
Creative Industries ◽  
Raw Material ◽  
High Quality ◽  
The Village

This program is conducted to assist Siponjot Village while empowering the people of Siponjot Village to be able to utilize and maximize the benefit of the village forest. Village forest might support the availability of raw materials required for making musical instruments, such as high quality of wood, including how to process wood waste from making musical instruments to be used as creative souvenirs and improve the economic value. The raw material for production determined its results of the production of wood-based musical instruments. Thus, in order to produce a high quality tanginang, hasapi, and gondang, which previously began to be produced by arts crafts in the Sitangkubang area of ​​Siponjot Village, a high quality of raw materials is needed. The community service team surveyed the location of planting seeds for village forest restoration, provided socialization related to the importance of village forest cultivation and the suitability of the Siponjot Village area for the cultivation of these plants. Village forest restoration aims to maintain the beauty and beauty of the village. Implementation of village reforestation activities starting from socializing forest tourism and the strength of village forests to the community, followed by a discussion about village forest management and its economic benefits. Handover of a thousand units of forest plant seedlings given to the villagers of Siponjot as part of the forest restoration program in the area.

Gold Prospecting With Factorial Cokriging In The Limousin, France

1994 ◽  
Author(s):  
Hans Wackernagel ◽  
Henri Sanguinetti
Keyword(s):  
Raw Materials ◽  
Economic Value ◽  
Shear Zones ◽  
Raw Material ◽  
Strict Sense ◽  
Geological Interpretation ◽  
Geological Body ◽  
Geostatistical Methods ◽  
Geological Phenomenon

In geochemical prospecting for gold a major difficulty is that many values are below the chemical detection limit. Tracers for gold thus play an important role in the evaluation of multivariate geochemical data. In this case study we apply geostatistical methods presented in Wackernagel (1988) to multielement exploration data from a prospect near Limoges, France. The analysis relies upon a metallogenetic model by Bonnemaison and Marcoux (1987, 1990) describing auriferous mineralization in shear zones of the Limousin. The aim of geochemical exploration is to find deposits of raw materials. What is a deposit? It is a geological anomaly which has a significant average content of a given raw material and enough spatial extension to have economic value. The geological body denned by an anomaly is generally buried at a specific depth and may be detectable at the surface through indices. These indices, which we shall call superficial anomalies, are disposed in three manners: at isolated locations, along faults, and as dispersion halos. These two definitions of the word "anomaly" correspond to a vision of the geological phenomenon in its full continuity. Yet in exploration geochemistry only a discrete perception of the phenomenon is possible through samples taken along a regularly meshed grid. A superficial anomaly thus can be apprehended by one or several samples or it can escape the grip of the geochemist when it is located between the nodes of the mesh. A geochemical anomaly, in the strict sense, only exists at the nodes of the sampling grid and we shall distinguish between: a pointwise anomaly defined on a single sample, and a groupwise anomaly defined on several neighboring samples. This distinction is important both upstream, for the geological interpretation of geochemical measurements, and downstream, at the level of geostatistical manipulation of the data. It will condition an exploration strategy on the basis of the data representations used in this case study. A pointwise anomaly, i.e., a high, isolated value of the material being sought, will correspond either to a geological phenomenon of limited extent or to a well hidden deposit.

scholarly journals PRODUK SAMPING TANAMAN UBIKAYU SEBAGAI POTENSI BIOEKONOMI UNTUK PERTANIAN MASA DEPAN

2019 ◽  
Vol 13 (3) ◽  
pp. 433
Author(s):  
Fahrur Rozi ◽  
Quartina Pudjiastuti
Keyword(s):  
Swot Analysis ◽  
New Technologies ◽  
Raw Materials ◽  
Economic Value ◽  
Development Strategies ◽  
Raw Material ◽  
Added Value ◽  
Small Scale ◽  
Integrated Agriculture ◽  
By Products

Potential and opportunities for cassava development are still very broad along with development of companies in livestock, processed food, and other industries. Added value of cassava commodities resulting from development of downstream industries (processed products) is far higher than upstream industries (primary products), so that development paradigm in agriculture sector in future should be directed towards product expansion including its waste. This study aims to examine the economic value of cassava as a future crop from direct as well as by-products and their development strategies. Data was collected from small-scale tapioca flour farmers, ranchers and entrepreneurs. SWOT analysis was used to determine relevant development strategies. Analysis shows that cassava has an potential, especially as a raw material for food and feed industry. In short term, developing cassava strategy as an industrial raw material is to use new technologies i.e. varieties and cultivation techniques for planting arrangements. Cassava potential economic value is relatively high in terms of farming aspects, food raw materials, feed and industry. This potential, apart from main product, is also by-product that has been neglected at 29.7% of cassava main value. By-products potensial has not been used optimally and a bioeconomic value of biomass that can support integrated agriculture in the future.

scholarly journals Potential of Underutilized Marine Organisms for Aquaculture Feeds

2021 ◽  
Vol 7 ◽  
Author(s):  
Dedi Jusadi ◽  
Julie Ekasari ◽  
Muhammad Agus Suprayudi ◽  
Mia Setiawati ◽  
Ichsan Achmad Fauzi
Keyword(s):  
Raw Materials ◽  
Marine Organisms ◽  
Agricultural Products ◽  
Raw Material ◽  
Environmental Damage ◽  
Human Consumption ◽  
Quality And Safety ◽  
Processing Technologies ◽  
Alternative Feed ◽  
Aquaculture Production

The supply of land-based agricultural products as aquafeed raw materials is challenged by limitations on space and water, and by environmental damage. Marine environments offer a vast opportunity for the expansion of aquaculture, including the production of feed raw materials. Besides fishmeal and fish oil, which are generated from capture fisheries, the use of marine-based feed raw materials from aquaculture production is not yet in common practice. Here, we discuss the potential of underutilized marine organisms that can be cultured by extracting nutrients from their environment and are nutritionally compatible for use as alternative feed materials in aquaculture. We identify marine organisms such as blue and green mussels, Ulva spp., and microbial floc that are nutritionally suitable as aquafeed raw material and may further act as bioremediators. However, environmental factors that affect productivity and the risk of pollutant accumulations, which would potentially reduce the safety of aquaculture products for human consumption, may pose challenges to such applications of extractive organisms. Therefore, the development of pretreatment and processing technologies will be critical for improving the nutritional quality and safety of these raw materials for aquafeed production.

scholarly journals Alpian, Yanciluk, dan Wahyu Supriyati

2020 ◽  
Vol 13 (02) ◽  
pp. 22-31
Author(s):  
Agrienvi
Keyword(s):  
Energy Demand ◽  
Alternative Energy ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Economic Value ◽  
Forest Products ◽  
Raw Material ◽  
Wood Pellets ◽  
Industry Waste ◽  
Simple Technology

Energy demand increase follow to population growth factors, high exploration costs, rising world oil prices andthe difficulty of finding sources of oil reserves. These factors cause the governments of several countries toimmediately produce alternative energy that is renewable and environmentally friendly. Wood pellets are analternative energy source. The availability of raw materials is very easy to obtain. Raw materials for wood pelletsfrom the exploitation waste such as logging residues, branches and twigs, wood industry waste such as scraps,sawdust and bark, agricultural waste such as straw and husks. Waste that is developed into a product will produce ahigher economic value. Making pellets from wood waste is an alternative energy material for meeting people's energyneeds. The opportunity to develop wood pellets as fuel is wide open because of the vast potential of forests inIndonesia and the large amount of waste from forest products, both from timber industry waste and exploitationwaste. Equipment, raw materials and the process of making pellets in a simple manner need to be socialized to thepublic so that they can be applied especially for the utilization of potential waste that can be used as raw material formaking pellets.Keywords : wood pellets, waste, simple technology, renewable energy

Combustion Synthesis of β-SiAlON Using 3D Ball Milling

2017 ◽  
Vol 898 ◽  
pp. 1717-1723 ◽  
Author(s):  
Xue Mei Yi ◽  
Shota Suzuki ◽  
Xiong Zhang Liu ◽  
Ran Guo ◽  
Tomohiro Akiyama
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Combustion Synthesis ◽  
Ball Mill ◽  
Raw Materials ◽  
Raw Material ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Material Particle

Combustion synthesis (CS) of β-SiAlON was conducted using a 3D ball mill, with a focus on the effect of the 2D/3D ball mill premixing conditions on the CS raw material particle size as well as on the yield and grain shape of the final products. The results showed that the particle size distribution of the raw materials was significantly affected by the premixing conditions. Various particle sizes and particle size distributions could easily be obtained by using a 3D mill instead of a 2D mill due to the complex biaxial rotation movement of 3D milling. The particle size was more sensitive to the rotation ratio (vertical spin/horizontal spin, Vv/Vh) than the rotation rate when using 3D milling. Finally, β-SiAlON with less than 5 mass% unreacted Si was obtained using premix milling conditions of 135×200 [vertical spin (rpm) × horizontal spin (rpm)]. The grain shapes of the final products were clearly influenced by the particle size distribution of the raw mixtures.

Research on the Technical Conditions on Synthesizing Calcium Zirconate Material

2011 ◽  
Vol 287-290 ◽  
pp. 1765-1770
Author(s):  
Jie Gang You ◽  
Guo Dong Zhang ◽  
Dian Li Qu
Keyword(s):  
Firing Temperature ◽  
Raw Materials ◽  
Raw Material ◽  
Calcium Zirconate ◽  
Test Results ◽  
Zirconia Powder ◽  
Impurity Composition ◽  
Synthetic Rate ◽  
Moulding Pressure ◽  
Transmission Quality

The synthesizing CaZrO3are prepared with fused zirconia powder (0.044mm), monoatomic zirconia powder (0.044mm), desilication zirconia powder (0.044mm) and calcium oxide powder (0.044mm). The effect of different moulding pressure and firing temperature on synthesizing CaZrO3has been studied in this paper. The test results show that: The impurity composition SiO2and Al2O3in raw material have participated in reaction, and generated liquid, accelerated transmission quality speed of reaction. Desilication ZrO2is the best ZrO2raw material to synthesizing CaZrO3in above three ZrO2raw materials, firing temperature markedly influence the synthetic rate of CaZrO3, but moulding pressure is not this. Desilication ZrO2and CaO as raw material, firing 1600°C for 3h, pressure at 160Mpa and one stage burning process are the best technical conditions to synthesize CaZrO3.

scholarly journals Analisis Sistem Informasi Akuntansi Pembelian dan Persediaan pada PT. XYZ

2015 ◽  
Vol 6 (1) ◽  
pp. 96
Author(s):  
Hanny Juwitasary ◽  
Marlene Martani ◽  
Arya Nata Gani Putra
Keyword(s):  
Information Systems ◽  
Internal Control ◽  
Business Processes ◽  
Raw Materials ◽  
Economic Value ◽  
Accounting Information ◽  
Raw Material ◽  
Accounting Information Systems ◽  
Analysis And Design ◽  
Trading Company

Company faces a business competition that requires the company to survive or be superior to its competitors. PT. XYZ is a trading company engaged in distribution of raw materials and goods of Japanese foodand it needs the support of Accounting Information Systems (AIS) to be applied in all business processes. One of the most important business processes is purchasing and supplying of raw materials. Raw material is a resourceor materials that have a good economic value to be sold directly or processed into finished goods that will be marketed. Therefore, it is important for companies to know how to do a good internal control related to thepurchase and inventory. The methodology used in this research is to conduct a survey on the condition of the company's business processes, the study of literature with the method of analysis and design of Object-Oriented Analysis and Design (OOAD). The results of this study is the analysis and design of purchases accounting information systems, cash expense and inventory that can assist the companies in carrying out business activities and organizing internal control related to the purchase and inventory and to be able to reduce the distortionsthat occur and to maintain the smooth operation of the company. The information systems that are designed are able to help the companies in reducing errors caused by data record error transactions by employees and allow the companies to control the supply of goods.

scholarly journals Penerapan Teknologi Epoxy Wood dan Pallet Dari Limbah Kayu Sebagai Produk Kerajinan Unik Bernilai Ekonomis Tinggi Bagi Kelompok Pengrajin di Desa Sangkanayu, Kecamatan Mrebet Kabupaten Purbalingga

2018 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Bambang Sugiantoro ◽  
Sakuri Sakuri ◽  
Hartono Hartono
Keyword(s):  
Financial Management ◽  
Price Competition ◽  
Formal Education ◽  
Raw Materials ◽  
Economic Value ◽  
Wood Waste ◽  
Raw Material ◽  
Added Value ◽  
Wood Resin ◽  
Product Marketing

Purbalingga mempunyai keunggulan ketersediaan kayu yang tinggi, kondisi tanah yang kebanyakan pegunungan sangat mendukung tumbuhnya kayu keras, hampir setiap desa memiliki jumlah tanaman keras yang melimpah. Beberapa perusahaan kayu lapis dan mebelair juga banyak menginvestasikan dibidang produksi kayu lapis dan barecore di beberapa kawasan di purbalingga. UKM mebelair, kayu lapis dan kusen membutuhkan tenaga kerja yang cukup banyak, tidak membutuhkan pendidikan formal, sehingga terbuka pengentasan tenaga kerja secara umum. UKM pengrajin mebelair dan kusen kayu di Desa Sangkanayu, Kecamatan Mrebet, Kabupaten Purbalingga, membuat model berdasarkan pesanan lokal, tidak mengikuti trend furniture terbaru, memiliki kesulitan pada pembentukan model radius dan lengkung, finishing kurang halus dan waktu yang lama. Kayu dengan lubang dan tidak simetris biasanya tidak digunakan sebagai produk kusen/furnitur, limbah kayu dalam bentuk potongan secara umum tidak dimanfaatkan, padahal volume kayu limbah pada pembentukan mencapai kurang lebih 30% dari bahan baku. UKM mebelair belum memiliki pengetahuan pembentukan kayu dari limbah untuk menjadi produk kerajinan. Disamping itu pengetahuan manajeman usaha, pengelolaan keuangan, dan metode pemasaran produk juga masih rendah hanya menunggu pelanggan, mengakibatkan UKM sulit berkembang, persaingan harga antar UKM. Permasalahan pembentukan dengan menggunakan limbah kayu dan bahan baku dalam bentuk potongan digunakan untuk pembuatan kerajinan. Pembentukan ditingkatkan dengan kemampuan untuk membentuk lengkung menggunakan cutting vertical/bendsaw, untuk percepatan pembelahan menggunakan mesin TTG circle cutting. Teknologi yang diterapkan untuk pemanfaatan limbah kayu akibat kerusakan lobang, tidak lurus, akan diubah menjadi produk bernilai ekonomis tinggi, unik dengan epoxy wood resin. Metode pembentukan produk kusen dan mebelair dari kayu (limbah) akan memberikan alternatif untuk meningkatkan nilai tambah dan pendapatan, keuntungan lainnya penggunaan epoxy juga meningkatkan daya tahan, anti rayap dan bernilai ekonomis tinggi, berpotensi memiliki brand merk yang khas. Untuk penguatan manajemen, UKM dikenalkan administrasi keuangan, dan strategi pemasaran produk secara online. Solusi diatas diharapkan akan meningkatkan daya saing dan produktifitas UKM, desain produk baru dengan memanfaatkan limbah kayu untuk menjadi produk dinding kayu, dan produk epoxy wood resin, akan meningkatkan pendapatan UKM.Kata kunci: epoxy wood resin, wooden wall, circle rotary.AbstractPurbalingga has the advantage of high wood availability, the condition of the land that is mostly mountainous strongly supports the growth of hardwood, almost every village has an abundance of perennials. Several plywood and furniture companies also invested heavily in the production of plywood and barecore in several areas in Purbalingga. Furniture furniture, p lywood and sills need a lot of workforce, do not need formal education, sothere is a general elimination of labor. UKM of furniture and wood frame craftsmen in Sangkanayu Village, Mrebet Subdistrict, Purbalingga Regency, make a model based on local orders, do not follow the latest furniture trends, have difficulty in forming radius and curved models, less smooth finishing and long time. Holey and asymmetrical wood is usually not used as a frame / furniture product, wood waste in the form of pieces is generally not utilized, even though the volume of waste wood at the formation reaches approximately 30% of the raw material. Mebelair UKM has no knowledge of wood formation from waste to become handicraft products. Besides that, business management knowledge, financial management, and product marketing methods are also still low, just waiting for customers, which makes it difficult for SMEs to develop, price competition among SMEs. The problem of formation by using wood waste  and raw materials in the form of pieces is used for making crafts. Formation is enhanced by the ability to form curves using vertical cutting/bendsaw, for acceleration of cleavage using circle cutting machine. The technology applied to the utilization of wood waste due to damage to the hole, not straight, will be converted into high economic value products, unique with epoxy wood resin. The method of forming frame and furniture products from wood (waste) will provide an alternative to increase added value and income, other benefits of using epoxy also increase durability, anti termites and high economic value, potentiallyhaving a distinctive brand brand. To strengthen management, SMEs are introduced to financial administration, and online product marketing strategies. The above solution is expected to improve the competitiveness and productivity of SMEs, the design of new products by utilizing wood waste to become wood wall products, and epoxy wood resin products, will increase the income of SMEs.

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