8 research outputs found
A Study of Parsi Diaspora in Rohinton Mistry’s Family Matters
Rohinton Mistry is one of the award winning Indian Writers. He is now living in Toronto. His famous novels are: “Such a long Journey”, “A Fine Balance” and “Family Matters”. Being a Parsi writer, he probes deep the problems of Parsi community in his novels
Investigation of Material and Manufacturing Process to Develop High Pedestrian Safety Composite Bonnet
Cost reduction, light weighting, quality and safety are the basis for all design and development of automobile component manufacturing. Low cost with high quality components can be produced by proper material selection, material cost, production volume, manufacturing process. This paper investigates the existing metallic bonnet with a new low cost and light weight composite bonnet. Fibers such as glass and jute along with matrixes of polyester and epoxy resin are selected for part fabrication. Using reverse engineering process design is extracted from original metallic bonnet and is redesigned for FRP application. Hand lay-up and VARTM manufacturing process are compared to fabricate FRP bonnet. Important factors that involve in bonnet under real time damages are impact of child head-form during accident is analyzed as per Euro-NCAP standard. From the result VARTM based glass/ polyester composite is found to be a better candidate for fabrication. Keywords: Predestrain safety, Reverse enginneering, hand layup, VARTM, Analysis.</jats:p
Mechanical and thermal behavior of hybrid glass/jute fiber reinforced composites with epoxy/polyester resin
Mechaniczne i termiczne właściwości hybrydowych kompozytów na bazie żywicy epoksydowej/poliestrowej wzmocnionych włóknem szklanym i jutowym
The hybrid glass/jute fiber composites were fabricated by hand layup (HL) and vacuum assisted resin transfer molding (VARTM) method using epoxy and isophthalic polyester resins as matrices. The effects of fiber and matrix type as well as fabrication method on the tensile and flexural mechanical strength of resulting composites were investigated. The morphological fracture was analyzed based on scanning electron microscopy (SEM) images. Also, the curing characteristics of two matrix resins was studied by using differential scanning calorimetry (DSC). For glass fiber composite, the curing rate of polyester resin is faster at 100 °C than that of composite with epoxy matrix. Using VARTM process, the composite with high fiber volume fraction (Vf) of 52% was obtained.Hybrydowe kompozyty z włóknem szklanym i jutowym otrzymano metodami laminowania ręcznego (HL) oraz wspomaganego próżniowo formowania polimeryzacyjnego (VARTM) na osnowie żywicy epoksydowej lub izoftalowej poliestrowej. Badano wpływ rodzaju wzmocnienia i osnowy oraz metody wytwarzania kompozytów na ich wytrzymałość w testach rozciągania i zginania. Morfologię przełomów kompozytów analizowano za pomocą skaningowej mikroskopii elektronowej (SEM). Metodą skaningowej kalorymetrii różnicowej (DSC) określono charakterystykę utwardzania kompozytów na różnych osnowach żywicznych. Szybkość utwardzania w temperaturze 100 °C kompozytów żywicy poliestrowej z włóknem szklanym jest większa niż kompozytów z osnową żywicy epoksydowej. Metodą VARTM uzyskano kompozyt z dużym udziałem objętościowym włókna (Vf) równym 52%
Laparoscopic Nissen Rossetti fundoplication in situs inversus totalis—A blessing in disguise
AbstractINTRODUCTIONLaparoscopic Nissen fundoplication and Nissen Rossetti fundoplication represent two different surgical approaches for treating hiatus hernia. We report a Laparoscopic Nissen Rossetti fundoplication (LNRF) for gastro esophageal reflux disease (GERD) in a patient with situs inversus totalis (SIT).PRESENTATION OF CASE: A 38-year-old man with SIT was diagnosed with sliding hiatus hernia. We performed Laparoscopic Nissen Rossetti procedure for this patient. The patient was discharged on first postoperative day after he tolerated oral liquids.DISCUSSIONSIT is a rare anomaly presenting in 1–2 per 10,000 individuals. As this rare anomaly (SIT) led preoperative anticipation of respiratory and blood loss complications the above procedure was chosen. Less operating time, less calculated blood loss and improvement of symptoms with no associated gas bloating syndrome was noted especially with SIT.CONCLUSIONWe recommend relook into the Laparoscopic Nissen Rossetti fundoplication as an effective procedure in GERD especially with rare anomalies like SIT
