ISSN:0309-1902    

DOI:10.3109/03091909509030287

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

This paper comprises a study of the secondary flow patterns that can develop in the human aortic arch. Clinical evidence of these secondary flows has been obtained by Kilneret al.using magnatic resonance velocity mapping techniques. Some of their results are presented for comparison in this present paper. Four different Parametrk models of the aortic arch have been analysed using computational fluid dynamic techniques. Both steady and transient flow conditions have been considered and two different commercially available software packages were used, namely FIDAP and FLOTRAN. A satisfactory comparison of the theoretical analysis with the results, bothin vivoandin vitro, obtained by Kilneret al.for their out-of-plane inlet model was found. The theoretical analysis can now be extended to anulyse the effect of different configurations and orientations of artificial aortic valves on the resulting aortic arch flow patterns.

ISSN:0309-1902    

DOI:10.3109/03091909509030288

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Field Progammable Gate Arrays (FPGAs) allow dgtal circuitry to be integrated on to a single device without the long time penalty incurred with mask programmable Application Specific Integrated Circuits (ASICs). This makes FPAGA technology an attractive option to engineers involved in designing digital circuitry where space is at a premium. Furthermore, the relatively low cost qf FPGAs at low volume, compared to mask programmable ASICs make them an excellent prototyping option for designers who are considering low cost volume production with mask programmable ASICs. There are several different types of FPGA available which thus creates confusion for prospective users uncertain of their relative benefits. This paper serves as an introduction to FPGA technology and the stages involved in implementing a design, via the application of and Acterl FPGa to the development of an ambyulatory long term electrocardiogram (ECG) based RR interval recorder.

ISSN:0309-1902    

DOI:10.3109/03091909509030289

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Diabetes mellitus is a relatively common disorder in which many of the body's systems are affected, resulting in morbidity and mortality. Early diaposis and good blood glucose control can delay or prevent the onset of these complications. This review illustrates how engineering and technology can help to achieve these goals.

ISSN:0309-1902    

DOI:10.3109/03091909509030290

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Scheduled inspections help ensure the safety and efficacy of medical equipment. To ensure the regular checking of all items we developed a practical and realizable protocol consisting of basic safety and functional tests. Non-productive time spent searching for equipment was reduced enlisting the help of ward stag Record keeping was simplified using monthly checklists detailing the tests to be performed. Clear labels distinguished items checked and the ward was informed about missing items. The effectiveness of the programme was assessed by auditing the number of items due for inspection, the average time per inspection, the number of faults found, and the incidence of breakdown repairs. The average inspection time per item was reduced to half an hour and the number of items due for inspection to below 10%. The programme was effective in fault detection (7% of items checked) and the incidence of breakdown repairs decreased from 75 to 53%.

ISSN:0309-1902    

DOI:10.3109/03091909509030291

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909509030292

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Advances in Materials Science and Implant Orthopedic Surgery, NATO Advanced Study InstitutesSeries E: Applied Sciences 294: Edited by R. Kossowsky and N. Kossovsky, Kluwer Academic Publishers, 1995, NLG 235, $74,£109, pp. 332. ISBN 0 7923 3558 9.Biomedical and Clinical InstrumentationBy R. Meltzer, (Interpharm Press Inc., USA, 1994), pp. 274. Price US $98.50. ISBN 0 935184 50 3Implantable Cardioverter-Defibrillator. A Comprehensive TextbookEdited by N. A. M. Estes 111, A. S. Manolis, and P. J. Wang (Marcel Dekker, Inc., New York, 1994), pp. 931. Price $195, ISBN 0-8247-9194-0

ISSN:0309-1902    

DOI:10.3109/03091909509030293

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909509030294

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909509030295

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor