Results 41 to 50 of about 5,319 (223)

Three years with a knife stuck in the brain

open access: yesBrazilian Neurosurgery, 2014
Cranial stabbing injuries penetrating the brain are not commonly encountered. The cases in which the knife is retained constitute a challenge to the neurosurgeon. When a long-term permanence occurs, the reaction to the presence of the foreign body causes
Luiz Coutinho Dias Filho   +2 more
doaj   +1 more source

Stab resistance of bulletproof vests. A conceptual model of test bench [PDF]

open access: yesMATEC Web of Conferences, 2020
This paper presents a conceptual model of a stand to test the physico-mechanical characteristics of materials used in the soft panels of bulletproof vests for their stab resistance to cold weapons having a sharpened blade portion firmly and rigidly ...
Yaneva Svetlana
doaj   +1 more source

The Tree Stabbing Number is not Monotone [PDF]

open access: yesarXiv, 2020
Let $P \subseteq \mathbb{R}^2$ be a set of points and $T$ be a spanning tree of $P$. The \emph{stabbing number} of $T$ is the maximum number of intersections any line in the plane determines with the edges of $T$. The \emph{tree stabbing number} of $P$ is the minimum stabbing number of any spanning tree of $P$. We prove that the tree stabbing number is
arxiv  

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec   +6 more
wiley   +1 more source

Stab Wound Extension for the Eviscerated Small Bowel with Severe Ischemic Changes [PDF]

open access: yesJournal of Acute Care Surgery, 2018
An abdominal stab wound with evisceration is an indication of an emergency laparotomy. We encountered a case of a very severe ischemic change in the eviscerated small bowel as a result of stabbing. The patient was considered to have a high possibility of
Chan Kyu Lee   +3 more
doaj   +1 more source

Profilometry‐Based Indentation Plastometry Testing of Tungsten at High Temperature

open access: yesAdvanced Engineering Materials, EarlyView.
Profilometry‐based indentation plastometry (PIP) allows extraction of stress‐strain curves from indent profiles. Tungsten is of industrial interest but is brittle at room temperature. It does plastically deform at higher temperatures. Excellent agreement is obtained between the two techniques in this regime, but PIP also gives plasticity ...
James Rees Miller   +3 more
wiley   +1 more source

Parsing Argumentation Structures in Persuasive Essays

open access: yesComputational Linguistics, 2017
In this article, we present a novel approach for parsing argumentation structures. We identify argument components using sequence labeling at the token level and apply a new joint model for detecting argumentation structures.
Christian Stab, Iryna Gurevych
doaj   +1 more source

Frequency of intra-abdominal organ injury is higher in patients with concomitant stab wounds to other anatomical areas

open access: yesBMC Emergency Medicine, 2018
Background Management of stable patients with abdominal stab wound remains controversial, particularly for those with no clear indications for explorative laparotomy.
Igor Jeroukhimov   +8 more
doaj   +1 more source

Adhesion and Stab-resistant Properties of FDM-printed Polymer/Textile Composites

open access: yesTekstilec, 2023
Stab-resistant clothing has been used for centuries by soldiers. Today, it is also used by policemen and other people in dangerous jobs or situations.
Siver Cakar, Andrea Ehrmann
doaj   +1 more source

Holomorphic generating functions for invariants counting coherent sheaves on Calabi-Yau 3-folds [PDF]

open access: yesGeom. Topol. 11 (2007) 667-725, 2006
Let X be a Calabi-Yau 3-fold, T=D^b(coh(X)) the derived category of coherent sheaves on X, and Stab(T) the complex manifold of Bridgeland stability conditions Z on T. It is conjectured that one can define rational numbers J^a(Z) for Z in Stab(T) and a in the numerical Grothendieck group K(T) generalizing Donaldson-Thomas invariants, which `count' Z ...
arxiv   +1 more source

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