Engineering topics

Milhorn, H. T., Jr.

Publications and source records attributed to Milhorn, H. T., Jr..

8 records

NASA NTRS1974

A reevaluation of the interrupter technique for airway resistance measurement

An attempt was made to obtain a better insight into the actual transient response of airway opening pressure (Pao) following rapid occlusion. With this knowledge it was hoped to be able to clarify the reason for the overestimations found by other investigators, and possibly to obtain a more accurate method of estimating alveolar pressure just prior to interruption. This would result in an improved method for estimating airway resistance. Use of an extrapolation method was found to provide an improved correlation between resistances determined by the interruptor technique and those found by the plethysmograph in normal subjects.

Jackson, A. C.↗

NASA NTRS1972

Digital simulation and experimental evaluation of the CO2-H(plus) control of pulmonary ventilation

Previous models of the CO2-H(+) control of ventilation have been concerned either with the response to CO2 inhalation, or the response to perfusion of the surface of the medulla with mock cerebrospinal fluid having a high P sub CO2. Simulation of both responses with the same model has not been attempted. The purpose of the present study was two fold; first to develop such a model and, second, to obtain experimental data from human subjects for both developing this model and for evaluating this and future models.

Milhorn, H. T., Jr.↗

NASA NTRS1971

Dynamic respiratory and circulatory responses to hypoxia in the anesthetized dog

Dynamic respiratory and circulatory responses to hypoxia in anesthetized dogs, recording oxygen partial pressures, heart rate, blood pressure, blood flows, respiratory rate, etc

Carrell, D. E.↗

NASA NTRS1969

Steady-state analysis of the human respiratory system.

Steady state model for human respiratory system analysis, discussing controlled and controlling parts

Brown, D. R.↗

NASA NTRS1968

Conceptual idea of digital computer model of human respiratory system Progress report, 1 Jun. - 30 Nov. 1968

Digital simulation of human respiratory system

Milhorn, H. T., Jr.↗

NASA NTRS1968

A sampled-data regulator for maintaining a constant alveolar carbon dioxide.

Sampled-data regulator for investigating both steady-state and transient responses of respiratory system of humans to reduced oxygen at fixed levels of carbon dioxide

RESPIRATORY SYSTEM↗

NASA NTRS1968

A sampled-data regulator for maintaining a constant alveolar CO sub 2.

Sampled data regulator for maintenance of constant alveolar carbon dioxide during steady state and transient ventilatory responses to hypoxic stimulation

Coleman, T. G.↗

NASA NTRS1968

A theoretical study of pulmonary capillary gas exchange and venous admixture.

Pulmonary capillary gas exchange and venous admixture model and inclusion into respiratory system model, discussing pressure and concentration gradients, pathological effects, etc

Milhorn, H. T., Jr.↗