Forensic Analysis of BIOS Chips

Forensic analysis of GPT disks and GUID partition tables

Modern computers are beginning to surpass the design limitations of the aging DOS/MBR partition tables and BIOS boot system. As disk sizes begin to exceed two terabytes and hardware vendors begin to transition from BIOS to EFI, understanding GPT disks in forensic examinations becomes useful. This practitioner paper provides an overview of the GUID Partition Table (GPT) scheme from the perspecti...

Extracting Concealed Data from BIOS Chips

Improving the reliability of chip-off forensic analysis of NAND flash memory devices

Digital forensic investigators often need to extract data from a seized device that contains NAND flash memory. Many such devices are physically damaged, preventing investigators from using automated techniques to extract the data stored within the device. Instead, investigators turn to chip-off analysis, where they use a thermal-based procedure to physically remove the NAND flash memory chip f...

Review of the Surface Chemical Heterogeneity of Bacteriogenic Iron Oxides: Proton and Cadmium Sorption

This review focuses on the detailed characterization of proton and metal reactivity on the surface of bacteriogenic iron oxides (BIOS). This substance is composed of a highly porous matrix of ferrihydrite intermixed with intact and fragmented Gallionella ferruguinea cells. Studies concerning proton and metal cation binding to the BIOS were designed to assess their surface chemical heterogeneity...

Hydrocarbon contaminated water remediation using a locally constructed multi-stage bioreactor incorporated with media filtration

The present study investigated the coupling effect of biodegradation and media filtration in treating hydrocarbon contaminated water. The study recorded reductions in total petroleum hydrocarbon, total dissolved solids, turbidity and microbial load. The study was essentially a simulated pump and treat process that involved the pumping of hydrocarbon contaminated water for treatment in a locally...