In this study postmortem changes in the character of the stress-strain limit cycle were analyzed for cat extensor communis and extensor lateralis tendons maintained in a stream of Ringer’s solution and loaded with a short series of symmetrical triangular-wave stress cycles. The mechanical behavior of these tendons was compared with that of similar tendons which had been preserved by freezing. I...

The bending and growth characteristics of large fresh stems from four silver fir (Abies alba Mill.) and three Norway spruce (Picea abies (L.) Karst.) trees were studied. Twenty logs taken from different stem heights were subjected to four-point bending tests. From the bending test records, we calculated stress-strain curves, which accounted for detailed log taper, shear deformation and self wei...

SUMMARY BACKGROUND Blood clots perform the mechanical task of stemming the flow of blood. OBJECTIVES To advance understanding and realistic modeling of blood clot behavior we determined the mechanical properties of the major structural component of blood clots, fibrin fibers. METHODS We used a combined atomic force microscopy (AFM)/fluorescence microscopy technique to determine key mechanic...

The objective of this research is to study the effect fungal decay on mechanical and physical characteristics thermally treated wood flour-plastic composites. First, chips (Fagus orientalis L.) were for 30 120 minutes at three various temperatures (120, 150, 180 °C) under saturated vapor in a steaming vessel they ground (40 60 mesh size) by wily mill machine. Then polypropylene (PP), beech flou...

Introduction Vaginal colonization with Streptococcus agalactiae (group B streptococci) is hypothesized to constitute a risk factor for preterm prelabor rupture of membranes. In vitro studies have shown that S. strains isolated from infants neonatal sepsis adhere chorion cells the human chorioamniotic membrane. However, it still unknown whether penetrate membranes and affects biomechanical prope...

Semi-insulating silicon carbide (SiC) is a fully processable semiconductors substrate that is commonly used as an alternative to conventional silicon (Si) in high-power applications. Here we examine the feasibility of using SiC as a substrate for the development of minimally invasive multi-sensor micro-probes in the context of organ monitoring during transplantation. In particular, we make a th...

Large deformation of soft materials is harnessed to provide functions in the nascent field of soft machines. This paper describes a new class of systems enabled by highly stretchable, transparent, stable ionogels. We synthesize an ionogel by polymerizing acrylic acid in ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate ([C2mim][EtSO4]). The ionogel exhibits desired attributes of adequate co...

Experimental work was carried out to investigate the effect of fire flame (high temperature) on specimens one way slabs using Self Compacted Concrete (SCC). By furnace manufactured for this purpose, twenty reinforced concrete slab were exposed direct flame. All have same dimensions. The cooled in two types, gradually by left them air and suddenly water. After that tested under point loads, stud...

introduction left ventricular free wall rupture (lvfwr) is a frequent cause of death after acute myocardial infarction, and its repair remains a surgical challenge. conclusions a hemodynamic study was acceptable at a 12-month follow-up, and no complication was seen. case presentation tachosil® is a ready-to-use equine collagen patch which has been successfully used for hemostasis in cardiovascu...

Stoneware is a ceramic material with low porosity and high mechanical properties, such as the modulus of rupture. It essentially made clay, feldspar quartz sintered to create mixture glass crystalline phases. With projected growth rate global ceramics market size country’s development plan for 2023–2028, it imperative that alternative raw materials manufacture products be sourced so importation...