background: treating a chronic disease such as hemophilia is to improve the symptoms and quality of life (qol) of the patients. this study aimed to study the quality of life among hemophilic children and compare the quality of life between patients receiving prophylactic or on demand treatments. materials and methods: in this descriptive-comparative study, we enrolled 60 patients from three mai...

introdouction: canal length measurement is essential for proper endodontic treatment. any error or miscalculation in working length determination, particularly in curved canals, can result in complications during or after root canal therapy. digital radiography has enabled accurate measurement of curved canal length. in this study, we evaluated the accuracy of calibration of a complementary met...

The streamflow data acquisition with various techniques and dispersing of River’s locations demand improvement reliability frequency aspects. One the measurement characteristics is ownership. authority sharing authorizes its quality also responsible for wrong decision triggered by incorrect data. consensus-based crowdsourcing contribute to aggregated records’ generation. records a...

Monolithic file servers are limited by the power of an individual system. Cluster file servers are limited by resource sharing and recovery issues as the number of cluster nodes increases. DiFFS is a file service architecture that allows system resources to be added (or removed) dynamically, e.g., storage and processors. Resources are partitioned in such a way that contention is avoided, while ...

There is a growing demand for large-scale distributed storage systems to support resource sharing and fault tolerance. Although heterogeneity issues of distributed systems have been widely investigated, little attention has been given to security solutions designed for distributed storage systems with heterogeneous vulnerabilities. To address this issue, we design a Secure Fragment Allocation S...

With the development of the big data, The traditional file system can no longer meet the demand of High Performance Computing and Big Data. Parallel file systems are getting more and more popular in High Performance Computing. As a typical parallel file system, PVFS has been widely used in big data computing area in recent years. However with the increasing of computing scale, there exist the n...