Smart pumps that turn on in a standard mode (i.e., without any dose-checking), or that default to a standard mode, can also discourage compliance because it takes extra effort to switch the pump to the dose-checking mode and to access the library. Smart pumps that call for extra ef fort are more desirable than pumps that turn on in the standard mode because humans can always defeat technology i...

In recent years, there is a surge in the popularity of using insulin pump or continuous subcutaneous insulin infusion (CSII) therapy, as opposed to multiple daily injections (MDI) by insulin syringe or an insulin pen. Some case studies have suggested that insulin delivery failure may be caused by the precipitation of insulin within the infusion set. Speculation also exists that the flow of insu...

MANY of the conventional types of freezing-drying apparatus employ an oil or mercury diffusion-pump, backed by a rotary pump, to obtain the high vacua necessary to ensure that the water molecules which escape from the specimens have sufficient mean free path to enable them to reach the vapour trap. Clearly, the efficiency of the freezing-drying process might be greatly increased if the specimen...

A heat pump in combination with an aquifer has high promise generating heat and cold for user comfort efficiently within buildings. To guarantee favourable annual performance of the heat pump in future, it is important that the energy supplied to the aquifer is in balance. This paper demonstrates how a multi-agent approach can be applied to preserve this balance while delivering the exact amoun...

In this paper, the reasons of damage water pumps parts of the air compressor cooling system were studied. To reach this goal, the works like preparing metallographic samples, evaluation of structure, investigation of mechanical properties, the alloy parts detection and chemical analysis of deposit and corrosion products collected from the parts were performed. According to studies and results o...

The working characteristic of scroll oil pump and the propeny of medium oil are described in this paper, the leakage of oil IS analysed, and the mathemaucal model is set up for scroll o1l pump. The effects of the discharge port on the pressure of the working pocket, the oil d1splaccment and the requ1red power are obtained according to the results of calculation and e>;periment. The optimal desi...

This article presents the results of the experimental runs of a prototype of R744 (CO2) refrigeration system operating in a both air conditioning and heat pump mode when heat rejection is done in supercritical region. The prototype system is sized for a compact car. Data presented are in the limited range of operation. Further optimization and extension of operating range is underway. Test faci...