Abstract Fiber reinforced composite is widely used in current stab-proof equipment, the high performance and light weight have always been pursued for a long time. The present study optimizes anti-stab of fiber composites by using silica silicon carbide ceramic particle reinforcements. different processes structures were characterized. Silica reinforcements added to fabric form shear thickening...

This paper provides a complete characterization of all the rank facets of the stable set polytope STAB(G) associated with a claw-free graph G. In particular, it is shown that a claw-free graph G produces a rank facet of STAB(G) if and only if it can be obtained by means of two simple lifting procedures from three basic classes of graphs: (i) cliques, (ii) line graphs of minimal 2-connected hypo...

conclusions it seems serial clinical examinations are safe and decrease the cost and duration of hospitalization in stable patients with anterior abdominal wall stab wounds. results ninety-one men (91%) and 9 women (9%) with mean age of 27 ± 10.7 years were included. coexisting injuries were prevalent in 12 cases. the duration of hospitalization was 1 day in 31%, 2 days in 30%, 3 - 4 days in 32...

Spinal cord injuries (SCIs) due to stab injuries are relatively rare (< 1.5% of SCIs) [1], and their surgical management is controversial [1-3]. The incidence of vertebral artery injury in penetrating neck trauma is around 7.4% for stab wounds [4]. We report a unique case of upper cervical spine impalement in which the knife tip was lodged in the occipitocervical level and our surgical strategy...

Pneumocephalus is a complication of trauma to the chest and many iatrogenic interventions. It may arise due to systemic air embolism or retrograde cerebral venous air embolism which is an extremely rare complication. We report a 26-years-old female patient who presented to the Emergency Department suffering of multiple stab wounds. She was in a state of shock and after first aid and evaluation ...

Brain injury induces reactive gliosis. To examine the activation of glial cells after brain injury in young versus aged rats, we used a brain stab-wound model and examined the expression of cells positive for ED1 (ED1(+)) and glial fibrillary acidic protein (GFAP(+)) in the hippocampus in young-mature (3 months) and aged (25 months) Wistar rats at various times following hippocampal stab injury...

Genomic scans of clones isolated from long-term stab cultures of Escherichia coli K-12 showed the loss of two large segments of the genome, with each lost segment being approximately 20 kb long. A detailed analysis of one of the deletions, located between 5.4 and 5.9 min, revealed that similar deletions had arisen in several other stab cultures. All deletions of this type exhibited a right term...

Perfect graphs constitute a well-studied graph class with a rich structure, reflected by many characterizations with respect to different concepts. Perfect graphs are, for instance, precisely those graphs G where the stable set polytope STAB(G) equals the fractional stable set polytope QSTAB(G). The dilation ratio min{t : QSTAB(G) ⊆ t STAB(G)} of the two polytopes yields the imperfection ratio ...

a case of a transcranial stab wound is presented in which the patient was stabbed in the left temporal bone with a knife which, after traversing the tentorium, passed through the occipital squama and its tip reached the upper cervical area. the subject underwent surgery and was discharged without neurological sequelae. the fundamental principles of management in this specific type of head injur...