Spontaneous bilateral mode II shear ruptures were nucleated on faults in photoelastic Homalite plates loaded in uniaxial compression. Rupture velocities were measured and the interaction between the rupture front and short fault branches was observed using high-speed digital photography. Fault branches were formed by machining slits of varying lengths that intersected the fault plane over a ran...

Large-scale data warehousing, data mining, and scientific applications require the analysis of terabytes of facts data accumulated over long periods of time. Tape libraries are suitable devices for storing such mass data. The online analytical processing (OLAP) of this data typically leads to long-running aggregation queries joining the tape-resident facts relation with disk-resident dimension ...

Today large amounts of data are stored on tertiary storage media such as magnetic tapes and optical disks. DBMSs typically operate only on magnetic disks since they know how to maneuver disks and how to optimize accesses on them. Tertiary devices present a problem for DBMSs since these devices have dismountable media and have very diier-ent operational characteristics compared to magnetic disks...

BACKGROUND AND PURPOSE Rupture risk assessment for intracranial aneurysms remains challenging, and risk factors, including wall shear stress, are discussed controversially. The primary purpose of the presented challenge was to determine how consistently aneurysm rupture status and rupture site could be identified on the basis of computational fluid dynamics. MATERIALS AND METHODS Two geometri...

BACKGROUND Rupture is an important complication of breast implants. Before cohesive gel silicone implants, rupture rates of both saline and silicone breast implants were over 10%. Through an analysis of ruptured implants, we can determine the various factors related to ruptured implants. METHODS We performed a retrospective review of 72 implants that were removed for implant rupture between 2...

OBJECTIVES The aim of this study was to identify factors causing rupture recurrence after surgical repair of postinfarction ventricular septal rupture and to evaluate the indication for reoperation. PATIENTS Recurrence of rupture was analysed in 25 out of a series of 109 patients who underwent surgical repair for postinfarction ventricular septal rupture between 1980 and 1992 in our instituti...

Porous phyllosilicate-based ceramics were manufactured by freeze-tape casting from clays of different particle size and morphology in order to characterize their microstructure stress rupture changes before after firing. Three raw selected: HCR (77% Halloysite–10Å), KORS (29% kaolinite), KCR kaolin (98% kaolinite). These exhibited a monomodal distribution used prepare four slurries, three with ...

The development of high-temperature heavy-duty turbine disk materials is critical for improving the overall efficiency combined cycle power plants. An alloy strategy to this end involves superalloys strengthened by ‘compact’ ??-?? coprecipitates. Compact morphology coprecipitates consists a cuboidal ?? precipitate such that ?? discs coat its six {001} faces. present work an attempt investigate ...

A 4-day-old Holstein bull calf with considerable oedema of the belly (water belly) was referred to theVeterinary Teaching Hospital of the School of Veterinary Medicine, Shiraz University. The owner did notobserve any urination since birth. Rupture of the urethra was suspected. Perineal urethrotomy was performed. Subsequently, catheterization of urethra revealed the obstruction near the external...

Various complications of hydatid cyst have been recognized to date. We have encountered one such complication-rupture of hydatid cyst to the duodenum­ leading to upper gastrointestinal bleeding in a 40 year old male, who referred with severe right upper quadrant (RUQ) pain and gastrointestinal bleeding of a few hours' duration. Laparotomy revealed a cyst (7 x 15 cm) in the left lobe of the ...