Imaging Atmospheric Cherenkov Telescopes (IACTs) have resulted in a breakthrough in very-high energy (VHE) gamma-ray astrophysics. While early IACT installations faced the problem of detecting any sources at all, current instruments are able to see many sources, often over more than two orders of magnitude in energy. As instruments and analysis methods have matured, the requirements for calibra...

Wastewater treatment of machine-building enterprises contaminated with oils, petroleum products and mechanical impurities is an urgent task. A promising direction in the field such wastewater use pressure hydrocyclones hydrocyclone installations. The article presents results research on oil-containing hydrocyclones, conducted experimental installation, which includes under test, a sedative tank...

Knowledge-based CAD systems limit designers’ creativity by constraining them to work with the prototypes provided by the systems’ knowledge bases. We investigate knowledge-based CAD systems capable of supporting creative designs in the example domain of elementary mechanisms. We present a technique based on qualitative explanations which allows a designer to extend the knowledge base by demonst...

The most important mechanical property of the artery wall is its non-linear elasticity. Over the last century, this has been well-documented in vessels in many animals, from humans to lobsters. Arteries must be distensible to provide capacitance and pulse-smoothing in the circulation, but they must also be stable to inflation over a range of pressure. These mechanical requirements are met by st...

Following the Brent Spar controversy, the OSPAR countries reached a unanimous agreement in 1998 for the future rules for disposal of petroleum installations. The vast majority of existing offshore installations will be re-used or returned to shore for recycling or disposal. For installations where there is no generic solution, one should take a case-by-case approach. We provide a survey of inte...

In order to meet the demands of turbine integration into the wind park grids, advanced power converter technologies have successfully been developed by ABB. Along with the ongoing move from onshore to offshore wind installations, the system reliability, maintenance costs and product quality have come into focus to a far greater extent. Even the smallest service for offshore installations immedi...

In recent years important advances in the physiology and biochemistry of the musculoskeletal system have allowed major contributions to the understanding of function and disease. Unfortunately, many of the people interested in studying organisms at an extremely basic level, as well as those involved in the treatment of disease processes of the skeletal system, frequently fail to grasp the impor...

There has been a strong interest developing for solar cooling in Australia and this is leading to an increasing number of commercial solar cooling installations. It is timely to review the environment in which an emerging solar cooling industry must operate. This review begins with a look at world leading commercial and research activities in Europe and the benchmarking thus provided. A local c...

During 1991, ovitrapping was conducted by 37 U.S. Air Force installations. Sixteen installations were positive for Aedes albopictus. The number (449) and percent (21.5%) of Ae. albopictus-positive ovipaddles was almost 4 times that of the previous year. The collections of Ae. albopictus at Columbus Air Force Base (AFB), MS, and Shaw AFB, SC, are new records for Lowndes and Sumter counties, resp...

Rapid validation of the expected performance of distributed generation installations is a critical step in the design process. However, the plethora of distributed generator types and the uniqueness of the load characteristics make the testing quite challenging.. This paper introduces an original approach to hardware-in-the-loop simulation aimed to evaluate the performance and suitability of di...