This work experimentally investigates the effect of vapour velocity during condensation of a ref rigerant on the outside of a single horizontal enhanced tube with particular reference to the fluid-dynamic mechanisms indu ced by vapour shear stress, surface tension and gravity on the condensate flow. More than 70 experimental runs were done in a transparent test section in order to directly o bs...

In an attempt to prolong the lives of rubbing implantable devices, several 'new' materials have been examined to determine their suitability as joint couplings. Tests were performed on a multidirectional pin-on-plate machine to determine the wear of both pitch and PAN (polyacrylonitrile)-based carbon fibre reinforced-polyetheretherketone (CFR-PEEK-OPTIMA) pins articulating against both BioLox D...

Aphanius marassantensis, new species, is described from the Kızılırmak River drainage in northern Anatolia based on colouration, meristic and morphometric characters, and the mtDNA COI barcode region. It is distinguished from other Anatolian Aphanius by one or several of the following characters: a stout body shape (BD/SL 28.2-39.6%), complete scale cover, and 25-28 scales along the lateral lin...

Heat exchangers are commonly used in industrial fields such as air conditioning, petrochemical and agriculture-food industries. The design and utilization of a heat exchanger should fulfill some conditions of performance, economy and space requirement. The most widely operated heat exchangers make use of fin-and-tube configuration in association with the application of heating, ventilating, air...

Within the seismological community, long-term networks of ocean bottom seismometers (OBSs) are being deployed increasingly for a year or more to monitor earthquakes. These geophysical studies are motivated by the goals of understanding both plate tectonics and the hazards from subduction zones. However, because OBSs typically record signals up to frequencies of ~25 Hz or higher, they also provi...

A 3-year-old wild gray wolf was referred to the Department of Veterinary Clinical Sciences of ShirazUniversity with a history of car accident. The radiographic examination showed supracondylar distal femoralfracture in right leg. The wolf was pre-medicated by acepromazine followed by induction of anesthesia usinga combination of diazepam and ketamine. Anesthesia was maintained by halothane. The...