Results 81 to 90 of about 72,478 (206)
SYMMETRIES IN IMAGES ON ANCIENT SEALS [PDF]
, 2008 In this paper, we discuss the presence of symmetries in images engraved on ancient seals, in particular on stamp seals. Mainly used to secure the containers from tampering and for owner's identification, these objects appeared during the 5th millennium ...
Sparavigna, Dr. Amelia
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Chemical Engineering Transactions, 2023 Natural Hazard triggering Technological Disasters (NaTech) are accidents resulting from natural hazards, such as earthquakes, interacting with industrial risks.
Michela Salimbeni +2 more
doaj
Ultraviolet Resonance Lamp-Patent [PDF]
, 1970 Development of ultraviolet resonance lamp with improved transmission of ...
Bass, A. M.
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Feasibility study of silicon nitride regenerators [PDF]
The feasibility of silicon nitride as a regenerator matrix material for applications requiring inlet temperatures above 1000 C is examined. The present generation oxide ceramics are used as a reference to examine silicon nitride from a material ...
Fucinari, C. A., Rao, V. D. N.
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Analysis of CO2 leakage through "low-permeability" faults from natural reservoirs in the Colorado Plateau, southern Utah [PDF]
, 2004 The numerous CO2 reservoirs in the Colorado Plateau region of the United States are natural analogues for potential geologic CO2 sequestration repositories.
Evans, J.P. +5 more
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Isostatic compression process converts polyaromatics into structural material [PDF]
, 1967 Isostatic compression process compacts certain powdered aromatic polymers into homogeneous materials that can be machined to form useful components, such as bearings.
Ingham, J. D. +2 more
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Morphology of powerful suction organs from blepharicerid larvae living in raging torrents
BMC Zoology, 2019 Background Suction organs provide powerful yet dynamic attachments for many aquatic animals, including octopus, squid, remora, and clingfish. While the functional morphology of suction organs from some cephalopods and fishes has been investigated in ...
Victor Kang +4 more
doaj +1 more source
Tip-turbine lift package design [PDF]
Tip-turbine lift fan design and ...
Jaklitsch, R. +3 more
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Types of rotor failure and characteristics of fragments [PDF]
, 1977 Noncontained rotor failures in U.K. engines resulting from low cycle fatigue, low cycle fatigue with superimposed high cycle fatigue, and overheating and-or overspeeding were analyzed.
Mccarthy, D.
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Energy efficient engine: Turbine intermediate case and low-pressure turbine component test hardware detailed design report [PDF]
A four stage, low pressure turbine component has been designed to power the fan and low pressure compressor system in the Energy Efficient Engine. Designs for a turbine intermediate case and an exit guide vane assembly also have been established.
Howe, D. C., Leach, K., Thulin, R. D.
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