We introduce the aggregating cache, and demonstrate how it can be used to reduce the number of file retrieval requests made by a caching client, improving storage system performance by reducing the impact of latency. The aggregating cache utilizes predetermined groupings of files to perform group retrievals. These groups are maintained by the server, and built dynamically using observed inter-f...

The X-ray Integral Field Unit (X-IFU) is the high resolution spectrometer of ESA's Athena observatory. It will deliver data in 0.2-12 keV band with an unprecedented spectral 2.5 eV up to 7 keV. During observation very bright sources, X-IFU detectors receive photon rates. count rate capability be improved by using defocusing option, which enable observations extremely sources fluxes $\simeq 1$ C...

As mobile computing devices become more and more popular, the corresponding hardware and applications become more complex, comfortable, and thus energy hungry. Since the main advantage of mobile devices is their ability to work without a stationary power supply an important challenge has been to reduce power consumption, thereby prolonging the uptime of the devices in battery mode. One way to r...

Multi-center studies using magnetic resonance imaging facilitate studying small effect sizes, global population variance and rare diseases. The reliability and sensitivity of these multi-center studies crucially depend on the comparability of the data generated at different sites and time points. The level of inter-site comparability is still controversial for conventional anatomical T1-weighte...

Vernonia galamensis Cass is a huge potential industrial crop with very high content of vernolic acid in the seed oil. The experiment was carried out to determine the effect of inter- and intra- row spacing on the yield and yield related traits of Vernonia galamensis Cas.The experiment was conducted for two years during 2014-2015 on experimental field of Wondo Genet Agricultural research center,...

Background and Aim: Cleaning and shaping is one of the important steps in endodontic treatment, which has an important role in root canal treatment outcome. This study evaluated the rate of file fracture and file deformation in Neolix rotary system and K-files in shaping of the mesiobuccal canal of maxillary first molars with moderate curvature.    Materials and Methods: In this ex vivo exp...

1. Abstract We propose 7T/14T FD-SOI SRAM with a substrate bias control mechanism. The 14T configuration suppresses intra-die variation in a bit cell. The substrate bias control circuits detect a threshold voltage and automatically change it with the substrate bias. Thereby, the inter-die variation is suppressed. By combining these two schemes, we confirmed that a 576-kb SRAM test chip in a 0.1...

BACKGROUND The purpose of this study was to determine errors in measurement of torsional profiles (TP) (torsional femoral angle, torsional tibial angle, and femoral ankle angle) among four orthopedic surgeons, experts, and non-experts in measurement, and the learning curve. METHODS Twenty-six lower extremities of 13 patients with spastic diplegia candidates for femoral/tibial derotational ost...

Abstract A bias-independent inter-modulation method is proposed and demonstrated for measuring low-frequency modulation bias half-wave voltages of Mach-Zehnder modulators (MZMs). The consists simultaneous sinusoidal on the ports MZM under test. Sinusoidal-modulated sidebands heterodyne with each other generate desired products after photodetection, which allows extracting both depth voltage MZM...

To establish a comprehensive Website is for any journal a major task. Most independent journals face the additional obstacle of not having the financial resources for hiring information technology staff. I am going to describe the kind of decisions we had to make to set up a comprehensive Website for the Houston Journal of Mathematics (HJM). The result is a publishing format which may not have ...