Results 221 to 230 of about 5,513,522 (257)

Epidemiological characteristics of paediatric COVID-19 and influenza co-infections in the United States, 2020-2024. [PDF]

open access: yesEpidemiol Infect
Naqvi OH   +9 more
europepmc   +1 more source

Mechanical Power and Energy in Invasively Ventilated Newborn Infants. [PDF]

open access: yesAnesthesiology
De La Rubia S   +9 more
europepmc   +1 more source

Finding Air Quantities in the Mine Ventilation Networks by Making Use of the Calculation of an Electric Circuit

open access: yesFinding Air Quantities in the Mine Ventilation Networks by Making Use of the Calculation of an Electric Circuit
openaire   +1 more source

The Phoenix Criteria and Other Severity Scores in Identifying Pediatric Sepsis.

open access: yesJAMA Netw Open
He S   +18 more
europepmc   +1 more source

Mine Ventilation Network Optimization Based on Airflow Asymptotic Calculation Method

Journal of Mining Science, 2018
The main objective of mine ventilation network optimization studies is to develop a reasonable method for ventilation system control that minimizes the total cost of mine ventilation. The fundamental principles for ventilation network optimization are discussed, and a multi-objective optimization model is established from the viewpoint of total cost ...
Bing-Rui Li   +2 more
exaly   +3 more sources

Calculation of the distribution of air in a ventilation network under the effect of a complex natural draft

Journal of Mining Science, 1965
1. Any branched ventilation networks with a different number of exits to the surface and natural drafts are calculated by the methods of mesh currents and closed meshes. 2. In the presence of homogeneous resistances in a network which have not less than two junctions the method of mesh currents is simpler since it requires setting up and
A. D. Vasserman   +2 more
exaly   +2 more sources

Research of mine ventilation resistance calculation based on BP neural network

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
Mine ventilation resistance is decided to coefficient of frictional resistance. and it is very vital to airflow distribution of using air place, With the special conditions of roadways of I-beam supporting in the article, the coefficient of frictional resistance is calculated through an improved BP artificial neural network model, and the article ...
exaly   +2 more sources

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