Geothermal investors need to be confident with the methods and results of exploration programs. Also cutting the upfront cost of geothermal exploration will further encourage investors to consider investment in this emerging clean energy field. Hence, it is of paramount importance to improve prospecting techniques in order to explore where economic concentrations of geothermal energy are to be ...

Given a finite ground set, a set of subsets, and costs on the subsets, the set partitioning problem is to find a minimum cost partition of the ground set. Many combinatorial optimization problems can be formulated as set partitioning problems. We present an approximation algorithm that produces high-quality solutions in an acceptable amount of computation time. The algorithm is iterative and co...

A straightforward and very cost effective method is proposed to prototype electrodes using pressure sensitive adhesives (PSA) and a simple cutting technique. Two cutting methods, namely blade cutting and CO2 laser ablation, are compared and their respective merits are discussed. The proposed method consists of turning the protective liner on the adhesive into a stencil to apply screen-printing ...

This text gives an overview about my current research in timing analysis at the Vienna University of Technology. After a short introduction to the topic follows the description of an approach relying on CLP, the implicit path enumeration technique (IPET). This technique is also used in a tool developed at the institute of Computer Languages (TuBound). Current timing analysis tools suffer from a...

The weak separation between userand kernelspace in modern operating systems facilitates several forms of privilege escalation. This paper provides a survey of protection techniques, both cutting-edge and time-tested, used to prevent common privilege escalation attacks. The techniques are compared against each other in terms of their effectiveness, their performance impact, the complexity of the...

In order to compare the clinical efficacy, safety, success rate and probable complications of rollerball ablation with cutting loop endometrial resection in the treatment of menorrhagia, eighty-three women in reproductive age suffering from menorrhagia who did not respond to medication were treated in a randomized study comparing cutting loop endometrial resection with hysteroscopic rollerb...

High cost and low efficiency problem has been bothering NC teaching.To lower the cost of practical teaching of higher speed numerical control manufacturing along with improvement in processing efficiency, a multi-objective scheme for optimization of process parameters has been developed here. Various constraint conditions were set and a complex algorithm was employed for optimization. To achiev...

The purposes of this study were to examine the cost-effectiveness of this technology and to determine improvements in patient outcome needed to make custom total knee cutting blocks cost-effective. A Markov decision model was used to evaluate the cost-effectiveness of custom cutting blocks compared with traditional instrumentation in total knee arthroplasty. The analysis demonstrates routine us...

Vermicular graphite cast iron, which is widely used in the automotive industry because of outstanding strenght properties. But, there are many problem with regard to machinability of this material. In this study, optimum cutting parameters were studied in order to improve machinability of vermicular graphite cast iron. Experiment parameters which is appropriate for ISO 3685 was selected. Depend...