BACKGROUND Pyrite is one of the most abundant and widespread of the sulfide minerals with a central role in biogeochemical cycles of iron and sulfur. Due to its diverse roles in the natural and anthropogenic sulfur cycle, pyrite has been extensively studied in various experimental investigations of the kinetics of its dissolution and oxidation, the isotopic fractionations associated with these ...

Multi-core architectures are becoming mainstream, permitting increasing on-chip parallelism through hardware support for multithreading. Synchronization, especial finegrain synchronization, is essential to the effective utilization of the computational power of high-performance large-scale multi-core architectures. However, designing and implementing fine-grain synchronization in such architect...

The food-based dietary guidelines in the Scandinavian countries that recommend an intake of minimum 75 g whole grain per 10 MJ (2,388 kcal) per day are mainly derived from prospective cohort studies where quantitative but little qualitative details are available on whole grain products. The objective of the current paper is to clarify possible differences in nutritional and health effects of th...

A safe basis for automatic loop parallelization is the polyhedron model which represents the iteration domain of a loop nest as a polyhedron in Zn. However, turning the parallel loop program in the model to efficient code meets with several obstacles, due to which performance may deteriorate seriously – especially on distributed memory architectures. We introduce a fine-grained model of the com...

A five-stage pipelined CPU based on the MIPs ISA is mapped to a self-timed logic family known as Phased Logic (PL). The mapping is performed automatically from a netlist of D-Flip-Flops and 4-input Lookup Tables (LUT4s) to a netlist of Phased Logic gates. Each PL gate implements a 4-input Lookup Table in addition to control logic required for the PL control scheme. PL offers a speedup technique...

In this research, I explore how distributed applications can achieve fine-grain adaptation in a mobile environment. I put forth the thesis that this can be achieved by exploiting context information, and support the idea with two applications: browsing the web on a mobile device, and continuous remote health monitoring of individuals.

Increase in FPGA capacity combined with CMOS technology scaling has resulted in increased demands on the configurable wiring architecture. Modern FPGAs typically give over 50% of the reconfigurable area over to routing resources. Rent’s Rule [1,2] implies that static FPGA wiring is not scalable and we are approaching the point where cross chip communication is impossible within a clock cycle. I...

Database applications often require rigorous provenance; e.g., it is important to know who is responsible for a change and at what time a change was done. Additionally, it is important to know which program, rule, or model was executed, and which data was used as input. The standard solution is to include provenance into the application logic. The consequence is that such a program extends sign...

In the paper, technology of melanin and powder from buckwheat ( Fagopyrum esculentum ) hull obtaining is studied. Buckwheat a by-product grain production has high antioxidant activity. It cheap source for raw material with content cellulose brown pigment. Russia, strategical crop used in child dietary nutrition. hulls, which volume about 22% total processed grain, are practically not used. At s...