During hot seasons the inlet temperature of Nitrogen increases, as a result compressor consumes more power for compressing a specific mass ratio of fluid and consequently total energy consumption of the compressor increases as well. In this research, a three stage centrifugal compressor with intercooler was modeled thermodynamically in order to decreases the energy consumption of the compressor...

Given the importance of IT investments in today’s organization, firms tend to spend increasing amounts of time and resources to better manage IT projects. However these projects continue to have high failure rates thus highlighting the need for improved risk management. A stream of IS research has focused on identifying several causes of managerial risks. The theory base that has been used in t...

précis: this debate article highlights some questions from critics of qualitative research. planning for proper design, philosophical background, researcher as a research instrument in the study, trustworthiness and application of findings are main debates in this field. one of the issues that have been received little attention is report of qualitative inquiry. a qualified report can answer th...

Software tools that analyze and generate code from ORM conceptual schemas are highly susceptible to feature interaction bugs. When testing such tools, test suites are needed that cover many combinations of features, including combinations that rarely occur in practice. Manually creating such a test suite is extremely labor-intensive, and the tester may fail to cover feasible feature combination...

For autonomously navigating vehicles, the automatic generation of dense geometric models of the environment is a computation-ally expensive process. Using first principles, it is possible to quantify the relationship between the raw throughput required of the perception system and the maximum safely achievable speed of the vehicle. We show that terrain mapping perception is of polynomial comple...

low cost and reliable system. In this paper, we present the run-time behavior of contour tracing algorithms for processing large documents, in a contemporary workstation environment. The performance criteria examined are processing time, memory usage, and the number of page faults. A new contour tracing algorithm based on Capson's algorithm is proposed and it is compared with other algorithms. ...

We are considering the NP-hard problem of finding a spanning tree with many internal vertices. This problem is a generalization of the famous and well-studied Hamiltonian Path problem. We present an dynamic-programming approach for general and degree-bounded graphs obtaining a run times of the form O∗(cn) (c ≤ 3). The main result is an algorithm for the case with maximum degree three. It only c...

A 6th order low-pass 1.6 to 3.2GHz gm-C filter for fiber optic adaptive EDC receivers cascades three Bi-Quads permitting reduction of group delay variation down to 10ps. Cut-off frequency is tuned by switching CMOS varactors polarity. THD is below -40dB at 0.9Vpp-diff output. CTF is implemented in a 0.18 m SiGe process, it occupies 0.17mm and consumes 0.3W from 3.3V supply. Index Terms — Contin...