Carbon-carbon 3-D orthogonal material behavior

Kratsch, K.M.; Schutzler, J. C.; Eitman, D. A.

doi:10.2514/6.1972-365

Cited by 17 publications

(3 citation statements)

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“…It was shown in [22] that every 3/2-tough chordal graph has a 2-factor. Based on this, Kratsch [125] raised the question whether every 3/2-tough chordal graph is hamiltonian. Using Theorem 43 in [13] it has been shown that this conjecture, too, is false.…”

Section: Theorem 43 Let H Be a Graph And X Y Two Vertices Of H Which ...mentioning

confidence: 99%

Toughness in Graphs – A Survey

Bauer

Broersma

Schmeichel

2006

Graphs and Combinatorics

107

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In this survey we have attempted to bring together most of the results and papers that deal with toughness related to cycle structure. We begin with a brief introduction and a section on terminology and notation, and then try to organize the work into a few self explanatory categories. These categories are circumference, the disproof of the 2-tough conjecture, factors, special graph classes, computational complexity, and miscellaneous results as they relate to toughness. We complete the survey with some tough open problems!

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Section: Theorem 43 Let H Be a Graph And X Y Two Vertices Of H Which ...mentioning

confidence: 99%

Toughness in Graphs – A Survey

Bauer

Broersma

Schmeichel

2006

Graphs and Combinatorics

107

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“…Recently, it was shown by Bauer et al [4] that every 3 2 -tough chordal graph has a 2-factor. Based on this, Kratsch [51] raised the question whether every 3 2 -tough chordal graph is hamiltonian. Using Theorem 3.3 in [3] it has been shown that this conjecture, too, is false.…”

Section: Chordal Graphsmentioning

confidence: 99%

On some intriguing problems in hamiltonian graph theory—a survey

Broersma

2002

Discrete Mathematics

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“…Figure 5 shows typical unit cell dimensions for two of the most common 3D nosetip materials. Carbon-carbon woven preforms have been made with a variety of cell dimensions for different applications (27)(28)(29)(30)(31)(32)(33). Fibers common to these composites include rayon, polyacrylonitrile, and pitch precursor carbon fibers.…”

Section: Carbon-carbon Compositesmentioning

confidence: 99%

Ablative Materials

Favaloro¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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The word ablation is derived from the suppletive past particle of the Latin auferre, which means to remove. It was originally used in the geologic sense to describe the combined, predominantly thermal, processes by which a glacier wastes. The present use of the word maintains the thermal aspect and describes the absorption, dissipation, and blockage of heat associated with high speed entry into the atmosphere. Thus ablative, thermal protection materials are used to protect vehicles from damage during atmospheric reentry. The need for these materials was first realized during the development of operational ballistic missiles in Pennemunde, Germany, when a large percentage of V-2s failed to reach their targets because of missile skin disintegration caused by aerodynamic heating (1). Ablative materials are also used to protect rocket nozzles and ship hulls from propellant gas erosion, as protection from laser beams, and to protect land-based structures from high heat environments.

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Carbon-carbon 3-D orthogonal material behavior

Cited by 17 publications

References 0 publications

Toughness in Graphs – A Survey

Toughness in Graphs – A Survey

On some intriguing problems in hamiltonian graph theory—a survey

Ablative Materials

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