Serum levels of and were measured in 39 United States Air Force personnel on active duty flying status. The subjects selected belonged to one of the following categories: pilot of a fighter-type aircraft, nonpilot on a fighter plane, pilot of a cargo-type aircraft, or nonpilot on a cargo...
process Considering the high reliability, maturity, and capability for large-scale production of sputtering technique in both industries and laboratories, SnO2prepared by magnetron sputtering for PSC application is however rarely reported38. And previously studied sputtered SnO2film was calibrated based on ...
These concepts include both electric helicopters and novel autogyros (i.e., helicopter-like aircraft in which the rotor rotates not by shaft power from the engine but by the force of air flowing through it; propulsion in forward flight is provided by a separate propeller). Representative ...
Moreover, the redox potential of the viologen units that is ≈150 mV more positive than the potential of the H2/2H+ couple at pH 7 (≈−0.45 V vs. SHE) should ensure a high driving force for the electron transfer between the polymer-bound mediator and the enzyme and is still ...
PLA Air Force (PLAAF) modernization is progressing at a steady pace. While, we would not characterize the modernization as accelerated, the totality of PLAAF modernization is significant. The goal of PLAAF modernization is to improve capability to conduct offensive and defensive operations such as st...
This study reports the results of a retention survey administered by the author to the active-duty Air Force members of the Air War College Class of 1981. The purposes of the survey were to assess the career and retention attitudes of the Class of 1981, determine the factors shaping those ...
Cho et al. (36) have used different kinds of sensors including force, vibration, AE, and spindle power sensor for the time and frequency domain data to monitor tool condition in end milling of AISI 4340. A multilayer-coated and multiflute carbide tool was used. Two levels of fusion, i....
The penetration force required to puncture the apple tissue was measured using a Texture Analyzer (TA HD Pluc C, Stable Micro Systems Ldt, Godalming, UK). A probe (2 × 10−3 m diameter convex tip) was used to puncture the sample through the central axis at a constant speed of 1.5 ...
EnlistedAir Forceranks are categorized into three levels: Airmen (E-1 through E-4), noncommissioned officers (E-5 and E-6) and senior noncommissioned officers (E-7 through E-9). The Air Force is the only one of the five branches of the U.S. military where NCO status is achieved at...
Such inter-species variability investigations are essential to provide more realistic scale-up correlations based on different levels of particle deposition in human vs. animal upper lung airways. Choi et al. [2] pointed out that there are two factors which significantly affect the airflow between...