منابع مشابه
Cutting Out Polygons with a Circular Saw
Given a simple (cuttable) polygon Q drawn on a piece of planar material R, we cut Q out of R by a (small) circular saw with a total number of cuts no more than twice the optimal. This improves the previous approximation ratio of 2.5 obtained by Demaine et al. in 2001.
متن کاملPolygons Cuttable by a Circular Saw
We introduce and characterize a new class of polygons that models wood, stone, glass, and ceramic shapes that can be cut with a table saw, lapidary trim saw, or other circular saw. In this model, a circular saw is a line segment (in projection) that can move freely in empty space, but can only cut straight into a portion of material. Once a region of material is separated from the rest, it can ...
متن کاملEffect of Yield Strength of a Circular Saw Blade on the Multi-spot Pressure Tensioning Process
In this study, a numerical model of the tangential tensioning stress distribution of a circular saw blade tensioned by multi-spot pressure was established using theoretical analysis, and the tangential tensioning stress distribution of the circular saw blade calculated by the model was shown to be true and reliable. The effect of yield strength of the circular saw blade on the distribution of t...
متن کاملMind your hand during the energy crunch: Functional Outcome of Circular Saw Hand Injuries
BACKGROUND Although injuries due to circular saws are very common all over the world, there is surprisingly little information available about their functional outcomes. As the socioeconomic impact of these injuries is immense and determined by the casualties' disability and impairment, it is the objective of this study to present data on the functional outcome, disability, and impairment of ha...
متن کاملBeware the Masquerading Malignancy
1 Parviz L. Sadigh, MB ChB Seng-Feng Jeng, MD E-Da Hospital I-Shou University Kaohsiung, Taiwan Sir: A plastic surgeons we often find ourselves operating on all parts of the human body. Indeed, it is this variation, unparalleled among the other surgical specialties, that stands Plastic Surgery out and makes for such a fascinating and captivating choice of career. It is important to remember, ho...
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ژورنال
عنوان ژورنال: Trauma Surgery & Acute Care Open
سال: 2021
ISSN: 2397-5776
DOI: 10.1136/tsaco-2021-000704