We present a new approach to digital forensic evidence acquisition and disk imaging called sifting collectors that images only those regions of a disk with expected forensic value. Sifting collectors produce a sector-by-sector, bit-identical AFF v3 image of selected disk regions that can be mounted and is fully compatible with existing forensic tools and methods. In our test cases, they have ac...

To separate one base metal mineral from another by flotation, it is indispensable to identify chemical reagents that specifically interact with the surface metal sites of one mineral or a group of minerals. This work studies the interactions of chelating collectors which offer the best potential for collecting abilities and mineral specificity with a typical refractory oxide mineral (malachite)...

Functional programming languages use garbage collection for heap memory management. Ideally, garbage collectors should reclaim all objects that are dead at the time of garbage collection. An object is dead at an execution instant if it is not used in future. Garbage collectors collect only those dead objects that are not reachable from any program variable. This is because they are not able to ...

The performance of the Combined Heat and Power Solar (CHAPS) collectors at the Australian National University is described. Results from testing of the collector under steady state conditions at a range of input temperatures are presented. Measured results under typical operating conditions show thermal efficiency around 57% and electrical efficiency around 11%, and therefore a combined efficie...

A b s t r a c t . It is shown that the termination detection problem for distributed computations can be modeled as an instance of the garbage collection problem. Consequently, algorithms for the termination detection problem are obtained by applying trausformations to garbage collection algorithms. The transformation can be applied to collectors of the "mark-and-sweep" type as well as to refer...

[There are] one-story intellects, two-story intellects, and three-story intellects with skylights. All fact collectors, who have no aim beyond their facts, are one-story men. Two-story men compare, reason, generalize, using the labor of the fact collectors as their own. Three-story men idealize, imagine, predict; their best illumination comes from above, through the skylight. (Oliver Wendell Ho...