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unifacial การใช้

"unifacial" แปล  
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  • Scrapers are unifacial tools that were used either for hideworking or woodworking.
  • The unifacial cambium allowed plants to grow as tall as 50 metres.
  • Xylem tissue in unifacial cambium plants was particularly structurally efficient.
  • Lacking secondary phloem, unifacial cambium plants developed alternative strategies to long range nutrient transport.
  • The stone artifacts include unifacial choppers, bifacial chopping tools, perforated stone rings, adzes and scrapers.
  • Due to the limited capacity for circumference growth, unifacial cambium plants had very little wood compared to modern woody plants.
  • It is unifacial if the edge was created by flaking on one face of the core, or bifacial if on two.
  • The vascular cambium of " Calamites " was " unifacial ", producing secondary xylem towards the stem center, but not secondary phloem.
  • Unlike the modern horsetail " Equisetum ", " Calamites " had a unifacial vascular cambium, allowing them to develop wood and grow to heights in excess of 10 m.
  • Along with bifacial tools they also produced unifacial tools such as blades and bladelets by skillfully working and setting up a platform on blade core and then striking it with an antler billet to remove a blade.
  • :: : : I must say though, that it would have been prudent to ask whether the tool I was showing was bifacial or unifacial as that plays an important role in identifying the culture.
  • Gouges ( or adzes ) may be either bifacial or unifacial, and are defined as tools with chisel-like working edges that were used for woodworking purposes; they may also have been used to remove marrow from bones.
  • As at Herto, Garba III includes terminal Acheulean hand axes, typical Levalloisian method, and many retouched tools on flakes ( side-scrapers and end-scrapers, backed knives, burins, unifacial and bifacial points ).
  • At Diepkloof Rock Shelter ( DRS ), from 70-74 ka bifaces and bifacial points are present while less complex forms such as backed artifacts occur from 70 ka through 60 ka and are subsequently replaced with unifacial points.
  • Calculating the Geometric Index of Unifacial Reduction ( GIUR ) T = overall artefact thickness t = height of retouch scar This diagram shows how to calculate the GIUR of a unifacial lithic artefact as described in Hiscock and Clarkson ( 2005 ).
  • Calculating the Geometric Index of Unifacial Reduction ( GIUR ) T = overall artefact thickness t = height of retouch scar This diagram shows how to calculate the GIUR of a unifacial lithic artefact as described in Hiscock and Clarkson ( 2005 ).
  • Iridaceae is distinctive among the Asparagales in the unique structure of the inflorescence ( a ripidium ), the combination of an inferior ovary and three stamens, and the common occurrence of unifacial leaves whereas bifacial leaves are the norm in other Asparagales.
  • Unifacial shavers, utilized flakes, and other artifacts were uncovered and attributed to various eras, along with several examples of worked bone, including a bone awl made from the scapula of a horse, and a knife made from a rib bone.
  • For example, Kuhn's geometric index of unifacial reduction ( GIUR ), which describes the ratio of scar height relative to the flake thickness, is highly influenced by the morphology of the flake blank which limits the applicability of this reduction index.