Technological Behavior in the Southwest: Pueblo I Lead Glaze Paints from the Upper San Juan Region

2014 ◽  
Vol 1656 ◽  
pp. 199-209
Author(s):  
Brunella Santarelli ◽  
David Killick ◽  
Sheila Goff
Keyword(s):  
Raw Materials ◽  
Surface Coatings ◽  
Materials Processing ◽  
San Juan ◽  
European Contact ◽  
Recent Interest ◽  
Glaze Paints ◽  
And Performance ◽  
Processing Properties ◽  
Technology Of Production

ABSTRACTAlthough widely employed in Eurasia, lead glazes were produced in only two small regions of the Americas prior to European contact, both in the Southwest. Southwestern glaze paints are unique in that they developed as decorative elements instead of as protective surface coatings. The first independent invention of glaze paints was in the Upper San Juan region of southwestern Colorado during the early Pueblo I period (ca. 700-850 CE). Despite recent interest in the later Pueblo IV glaze paints of New Mexico (ca. 1275-1700 CE), there have been no technological analyses of the Pueblo I glaze paints. This research project presents the first analysis and technological reconstruction of the Pueblo I glaze paints. It is in the production of the glaze paints that the potters were innovating and experimenting with materials. These early glaze paints have the potential to provide important information regarding both technology of production as well as the relationships and interactions of potters during this period in the Upper San Juan region. Preliminary results reveal a pattern of traits that involves raw materials, processing, properties and performance of the final product suggesting the existence of a patterned technological behavior.

A New Aluminium Silicon-Boron Nitride Abradable for Compressor Components

1998 ◽  
Author(s):  
K. Boddenberg ◽  
B. Kock ◽  
M. Dorfman ◽  
L. Russo ◽  
M. Nestler
Keyword(s):  
Boron Nitride ◽  
Raw Materials ◽  
Electrical Energy ◽  
Air Separation ◽  
Energy Costs ◽  
Performance Improvements ◽  
And Performance ◽  
Materials Used ◽  
Abradable Coatings ◽  
Optimization And Performance

Abstract Air separation plants use centrifugal compressors where air and electrical energy are the only raw materials used in the production process. So energy costs play a crucial role and the compressors are heavily penalized when guaranteed performance levels are not achieved. In order to better generate performance, abradable coatings, previously used in the gas turbine industry, have been designed into turbocompressors. This paper will show the optimization and performance improvements of a new aluminium silicon-boron nitride material.

Engineering in the technology of manufacture of extruded feed additives

2021 ◽  
Vol 109 (1) ◽  
pp. 44-52
Author(s):  
K. Kostetska ◽  
◽  
I. Ulianych ◽  
V. Zheliezna ◽  
M. Holubiev ◽  
...  
Keyword(s):  
Animal Feed ◽  
Raw Materials ◽  
Feed Additives ◽  
Feed Mixture ◽  
Special Means ◽  
Preliminary Preparation ◽  
Vegetable Raw Materials ◽  
Extruded Feed ◽  
Extrusion Technology ◽  
Technology Of Production

Engineering in the technology of manufacture of extruded feed additives The aim of the work was to expand the range of animal feed and improve the technology of production of extruded feed mixture. Technology of use of preliminary preparation of raw materials: cleaning, reduction of quantity, its dosing according to the recipe, change and special means for improvement of technological authorities and increase of fodder value from processes: preliminary mixing, settling and extrusion of the mixture, cooling and grinding of the product depending on the purpose of the fodder Keywords: grain, fruit and vegetable raw materials, feed additives, extrusion technology, engineering.

Preparation and Performance Testing of Tubular Cathode Support for Direct Ethanol Fuel Cell

2011 ◽  
Vol 415-417 ◽  
pp. 2345-2348
Author(s):  
Yang Zhang ◽  
Dong Tang ◽  
Rui Xue Duan ◽  
Hong Jun Ni
Keyword(s):  
Fuel Cell ◽  
Bending Strength ◽  
Raw Materials ◽  
Performance Testing ◽  
Volume Resistivity ◽  
Ethanol Fuel ◽  
Direct Ethanol Fuel Cell ◽  
Performance Requirements ◽  
And Performance ◽  
Gelcasting Process

A new tubular cathode support for Direct Ethanol Fuel Cell (DEFC) was prepared by the gelcasting process using mesocarbon microbead(MCMB) and graphite as the main raw materials. The effects of different graphite doping ratios on tensile strength, bending strength, crushing strength, volume resistivity and shrinkage rate for the prepared tubular cathode support were studied by experimental test. The result showed that the prepared tubular cathode support had very good comprehensive performance. The tubular cathode support with 10% graphite exhibits the best performance such as bending strength 25MPa and resistivity30µΩ•m, and it satisfied the DEFC cathode working conditions and performance requirements.

scholarly journals Haemoglobin polymorphism in selected farm animals: A review

2014 ◽  
Vol 30 (3) ◽  
pp. 377-390 ◽  
Author(s):  
S.S.A. Egena ◽  
R.O. Alao
Keyword(s):  
Genetic Improvement ◽  
Raw Materials ◽  
Farm Animals ◽  
Starch Gel Electrophoresis ◽  
Gene Frequencies ◽  
Starch Gel ◽  
And Performance ◽  
Polypeptide Chains ◽  
Degree Of Similarity

Biochemical diversity or polymorphism is the occurrence of varieties attributed to biochemical differences which are under genetic control. It has created a leeway for the genetic improvement of farm animals. This is because it can be used as a useful tool for the characterization of livestock breeds and population. This way, the degree of similarity or differences within and between breeds can be ascertained and this differences or similarity are important raw materials for genetic improvement of animals. Data obtained on gene frequencies and genotypes through polymorphism study makes it not only possible to compare the gene stocks of animals, the possible effects of the genes on reproductive and performance traits, but also study genetic variability under different environmental conditions of selection. This study was carried out to review haemoglobin (Hb) polymorphism in selected farm animals with the view of finding out the type of polymorphism observed by starch gel electrophoresis due to variation in the amino acid sequence in the polypeptide chains of Hb. The review showed clearly that there is a gene-controlled diversity in the different farm animals considered. This could serve as a reference point for future studies earmarked for the improvement of the animals possibly via marker-assisted selection.

scholarly journals DEVELOPMENT OF RECIPTURES OF CANNED SMOTHIES MADE FROM ZUCCHINI AND FRUITS

2018 ◽  
Vol 4 ◽  
pp. 56-62
Author(s):  
Anastasiia Tokar ◽  
Liudmyla Matenchuk ◽  
Zinaida Kharchenko ◽  
Iryna Haidai ◽  
Nadiia Zahorko ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Nutritional Value ◽  
Raw Materials ◽  
Treatment Temperature ◽  
Black Currant ◽  
Plant Raw Materials ◽  
Vegetables And Fruits ◽  
Technology Of Production ◽  
Constant Interest ◽  
Acid Index

Rational nutrition for a whole year is possible with a well-established system of storage and processing of plant raw materials. Products with vegetable and fruit raw materials due to their availability and nutritional value are in demand among the population. There is a constant interest in new products with increased biological value. The preservation of ascorbic acid, the main source of which is vegetables and fruits, is also affected by the technology of production. Despite the damaging effect of the heat treatment temperature of canned products on thermolabile components, the sterilization regimes should be relaxed. To this end, it has been proposed to produce beverages from vegetables and fruits for scientifically-based recipes, which allows them to be processed at a temperature of 100 °C, as well as juices with pulp and sugar. Smoothie, made on the basis of zucchini with the addition of gooseberries and blackcurrant puree contain respectively 13.3 and 41.8 mg/100 g of ascorbic acid, have an optimal for good perception of the sugar-acid index 21,4-21,5 compared with juices from soft pulp and sugar from gooseberry and black currant, which produces industry. The latter is explained by the fact that instead of sugar syrup, natural juice from zucchini was used in the recipe.

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