Portable Life Support System: Current Status and Future Perspectives

2020 ◽  
Vol 14 (1) ◽  
pp. 12-28
Author(s):  
Jingang Jiang ◽  
Yihao Chen ◽  
Xuefeng Ma ◽  
Yongde Zhang ◽  
Zhiyuan Huang ◽  
...  

Background: Portable life support system is used in the battlefield, disaster and in other special circumstances such as in space exploration, and underground survey to give the wounded a life support. The most dangerous period for the injured is the first hour after an injury, which is a crucial time for treatment. If the patient's vital signs were stabilized, more than 40% of the injured could be saved. The staff can efficiently complete the task if they get effective and stable vital signs during the operation. Therefore, in order to reduce the risk of disaster and battlefield mortality to improve operational safety and efficiency, it is necessary to study the portable life support system. Objective: The study aimed to provide an overview of recent portable life support system and its characteristics and design. Methods: This paper introduces the patents and products related to a portable life support system, and its characteristics and application. Results: This paper summarizes five kinds of portable life support systems which are box type, stretcher type, bed type, backpack type and mobile type. Moreover, the characteristics of different portable life support systems are analyzed. The paper expounds the problems of different types of portable life support systems and puts forward improvement methods to solve the problems. Finally, the paper points out the future development of the system. Conclusion: Portable life support system plays an increasingly important role in health care. In terms of the structure, function and control, further development and improvements are needed, along with the research on portable life support system.

2020 ◽  
pp. 244-248
Author(s):  
Maria Zazulina

The main regularities of formation and changes in the structure of economic practices that ensure the existence and survival of rural ethno-local communities are shown. The main blocks of economic practices and the relationships between them are characterized. Describes the features of the diversification of eco-nomic practices used by ethnic local communities. It is concluded that the trend of transformation of the life support system of ethno-local communities in the conditions of modernization is contradictory.


Upravlenie ◽  
10.12737/5639 ◽  
2014 ◽  
Vol 2 (3) ◽  
pp. 62-70
Author(s):  
Демин ◽  
A. Demin ◽  
Морозов ◽  
V. Morozov

Some questions related to analysis of theoretical concepts of "municipal entity life-support system" and "municipal entity competence" to clarify their essential characteristics, generalizations of theory and practice related to municipal entity life-support systems management and analysis of municipal entities’ competences distribution system status, to identify the main trends of its development, to develop a model of competences distribution between local authorities and a model of municipal entity life-support systems management efficiency improving.


Author(s):  
Neha Sachdeva ◽  
Laurent Poughon ◽  
Olivier Gerbi ◽  
Claude-Gilles Dussap ◽  
Christophe Lasseur ◽  
...  

Long-duration human space missions require considerable amounts of water, oxygen, and nutritious biomass. Additionally, the space vehicles must be well equipped to deal with metabolic human waste. It is therefore important to develop life-support systems which make these missions self-sufficient in terms of water, food, and oxygen production as well as waste management. One such solution is the employment of regenerative life-support systems that use biological and chemical/physical processes to recycle crew waste, revitalize air, and produce water and food. Photosynthetic cyanobacteria Limnospira could play a significant role in meeting these objectives. Limnospira can metabolize CO2 and nitrogen-rich human waste to produce oxygen and edible biomass. So far, life-support system studies have mainly focused on using chemical/physical methods to recycle water, degrade human waste, and recycle CO2 into oxygen. Nowadays, additional microbial processes are considered, such as nitrification of urea–ammonium–rich human waste and then using the nitrate for cyanobacterial cultivation and air vitalization. This cascade of multiple processes tends to increase the complexity of the life-support systems. The possibility of using non-nitrified urine for Limnospira cultivation can partially solve these issues. Our previous studies have shown that it is possible to cultivate Limnospira with urea and ammonium, the prominent nitrogen forms present in non-nitrified urine. In this study, we investigated the possibility of cultivating Limnospira with the different nitrogen forms present in non-nitrified urine and also evaluated their effect on the oxygen production capacity of Limnospira. For this 35-day-long study, we worked on a simplified version of the European Space Agency’s MELiSSA. During this ground demonstration study, we monitored the effect of urea and ammonium (vs. nitrate) on the oxygen production capacity of Limnospira. A deterministic control law, developed and validated on the basis of a stochastic light-transfer model, modulated (increase/decrease) the incident light on the photobioreactor (with Limnospira) to control oxygen levels in the closed loop. The CO2 from the mouse compartment was recycled as a carbon source for Limnospira. We observed that while the system could meet the desired oxygen levels of 20.3% under the nitrate and urea regime, it could only reach a maximum O2 level of 19.5% under the ammonium regime.


2020 ◽  
Vol 25 (2) ◽  
pp. 45-51
Author(s):  
D.A. Markelov ◽  
N.Ya. Mineeva ◽  
A.P. Akol´zin ◽  
B.I. Kochurov ◽  
M.A. Grigorieva ◽  
...  

The territory and its natural frame are the arena of all chemical, biological, technical interactions and processes, and the wind and rain are their natural propellers. The cartographic image of space, as an integral indicator of processes, phenomena, carries the function of a guide mark in the basis of control and regulation of durability and protection of structures in the natural frame. This article presents the results of a city life support system simulation in the light of the concept of forecasting and managing the risk of the danger of air pollution, including in the practice of anti-corrosion protection. Monitoring of the surveillance and control system grows into the life support system of the territory. “Technologies at a glance” provide: an assessment of the fields and halos of danger from air pollution (real and predicted state maps), modeling “alive geofilters”, namely, purification methods, preventive protection measures, formation of city breeze corridors or wind tunnels.


2017 ◽  
Vol 21 (2) ◽  
pp. 127-149 ◽  
Author(s):  
Vincent Blok ◽  

In this article, we reflect on the conditions under which new technologies emerge in the Anthropocene and raise the question of how to conceptualize sustainable technologies therein. To this end, we explore an eco-centric approach to technology development, called biomimicry. We discuss opposing views on biomimetic technologies, ranging from a still anthropocentric orientation focusing on human management and control of Earth’s life-support systems, to a real eco-centric concept of nature, found in the responsive conativity of nature. This concept provides the ontological and the epistemological condition for an eco-centric concept of biomimetic technologies in the Anthropocene. We distinguish five principles for this concept that can guide future technological developments.


1977 ◽  
Vol 5 (3) ◽  
pp. 251-257 ◽  
Author(s):  
G. D. Phillips

This paper outlines the development of life support systems, i.e. artificial support systems for failing essential organs such as heart, lungs, kidneys and gastrointestinal tract. The current status of organ support is discussed, particularly in relation to intensive care units. Ethical problems posed by the availability of these systems are presented, cost and cost/benefit ratios are discussed, and proposals are made for the rational use of life support systems in the intensive care situation.


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