Résumé
To propose an equipment and technology package for oxygen preparation and supply under hypoxia conditions in order to meet the requirements of populations on the plateau .Different populations were analyzed in terms of their oxygen supply requirements, and the modes, schemes and equipment for oxygen supply were explored accordingly and then applied.Efforts in the past 20 years have resulted in the advances in the equipment for centralized, mobile and portable oxygen preparation and supply, though the equipment for individual use hads to be improved and the diffused oxygen supply scheme also needs to be further evaluated .
Résumé
This paper designs a kind of electric field generator based on high-frequency waveform generator MAX038 according to the need of the myocardial tissue engineering research.The amplitude,pulse width and frequency of the signal producing by the generator can be adjusted.Characterized with high precise and wide frequency scope,this generator can produce triangle,square and sine waveforms and pulse etc.
Résumé
Objective To apply the EDI technology to the field pharmaceutical water preparation, thus improve the ability to prepare pharmaceutical water. Methods The EDI pharmaceutical water production technics was studied, and different kinds of technics were analyzed. The resistance value and TOC content of product water by EDI system were checked. The compact field purified water apparatus was developed, for which self-developed EDI was core technology. Results EDI system had advanced performance, for which the resistance value was high level, and the content of TOC was low. The produced water accorded with the criterion of purified water of Chinese Pharmacopoeia 2005. Conclusion EDI technology adapts to field pharmaceutical water production, and improves the quality of produced water and the adaptability of the system.