NDLI: Humidity control tool for neonatal incubator

Content Provider	Springer Nature Link
Author	Abdiche, M. Farges, G. Delanaud, S. Bach, V. Villon, P. Libert, J. P.
Copyright Year	1998
Abstract	In the first days of life, the daily evaporative loss from premature neonates can reach up to 20% of body mass. Such loss can be reduced by increasing the air humidity inside the incubator. Neither passive humidification nor open loop systems allow high humidity rates to be maintained or easily controlled: at 34°C, the maximum levels vary with the system from 40% to 77% of relative humidity. The skin evaporative exchanges between the neonate and the environment are directly proportional to the water vapour partial pressure difference the neonate’s skin and the air. An active closed loop system has been designed, which permits reliable and accurate control of humidity according to the water vapour partial pressure set, between 1 and 6kPa, in an air temperature range of 28–39°C. It is characterised by variations of about 0.05 kPa around the set value and a maximum humidification speed of 0.25kPa min$^{−1}$. The algorithm is based on optimal control and the dynamic programming principles. Test results place this active system above usual systems for its power, precision and adaptability. It is an exploitable tool in fundamental and clinical research, to precisely study the humidity effects on neonatal comfort and thermo-regulation evolution.
Starting Page	241
Ending Page	245
Page Count	5
File Format	PDF
ISSN	01400118
Journal	Medical and Biological Engineering and Computing
Volume Number	36
Issue Number	2
e-ISSN	17410444
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1998-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dynamic programming Humidity control Incubator Neonate Human Physiology Neurosciences Imaging Radiology Computer Applications Biomedical Engineering
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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