Fragmented File carving is an important technique in Digital Forensics to recover files from their fragments in the absence of the file system allocation information. In this paper, the fragmented file carving problem is formulated as a graph theoretic problem. Using this model, we describe two algorithms, “Optimal Carve” and “Probabilistic-based Carve”, to perform file reconstruction and recov...

Symbolic links make the Unix file system non-hierarchical, resulting in multiple valid path names for a given file. This ambiguity is a source of confusion, especially since some shells work overtime to present a con­ sistent view from programs such as pwd, while other programs and the kernel itself do nothing about the problem. Plan 9 has no symbolic links but it does have other mechanisms tha...

AIM The aim of this study was to test the effect of new protocol of glide path preparation by 20/0.04 rotary file on apical extrusion of debris when instrumenting fine curved mesial canals in mandibular molars with Self-adjusting File (SAF) and compare it to a glide path prepared by 20/0.02 hand K-file and rotary OneShape (OS) and reciprocating WaveOne (WO) file instrumentation. MATERIALS AND...

A light-weight XML query processor is presented which deals with structural and textual pattern queries. Unlike the existing index-based methods, it builds no indices. Unlike the existing stream-oriented methods, it preprocesses the input XML file to yield a path trie and a binary XML file, which are processed in path-pattern matching stage and in text-node searching stage, respectively. Our me...

FileWall is a file access control framework that allows file system administrators to enforce file access policies based on dynamic access context such as access history, environment, etc. Similar to a firewall, which interposes on a network path and operates on packets to enforce network access policies, FileWall interposes on a client-server path and operates on network file system messages t...

OBJECTIVES The aim of this study was to evaluate the shaping ability of newly marketed single-file instruments, Wave·One (Dentsply-Maillefer) and Reciproc (VDW GmbH), in terms of maintaining the original root canal configuration and curvature, with or without a glide-path. MATERIALS AND METHODS According to the instruments used, the blocks were divided into 4 groups (n = 10): Group 1, no glid...

We describe two enhancements to the AFS distributed file system intended to improve the performance of large file fetches over high-speed networks. Selective caching AFS bypasses the client local disk when fetching files, which improves the performance of applications such as streaming video, for which local caching is of little benefit, and gives client processor and cache resources to applica...

Abstract
 Aim:
 To compare and evaluate the effect of glide path creation with Nitiflex hand K- file, Proglider Path file on canal transportation concentricity in apically curved canals.
 Objectives:
 degree between:
 1) Glide preparation hand-K vs followed by combination Hyflex EDM CM instrumentation
 2) 3) hand- K Materials methods:
 Forty ISO 20, 0.02 taper...

Digital Forensic Analyst encounters a mixed file fragments in the absence of File Table information i.e., files‟ metadata. File Carving is a process of reconstructing files from mixed file fragments without using files‟ metadata. File Carving is an interesting and challenging problem in digital forensics and Data Recovery. Recently there have been number of research papers in the area of File C...