نتایج جستجو برای: air craft aging
تعداد نتایج: 312766 فیلتر نتایج به سال:
Black carbon (BC) exerts profound impacts on air quality and climate because of its high absorption cross-section over a broad range of electromagnetic spectra, but the current results on absorption enhancement of BC particles during atmospheric aging remain conflicting. Here, we quantified the aging and variation in the optical properties of BC particles under ambient conditions in Beijing, Ch...
The present review has mainly focused on the specific parameters including aging (aging days, temperature, relative humidity, and air flow), eating quality (flavor, tenderness and juiciness), microbiological quality and economic (shrinkage, retail yields and cost) involved beef dry aging process. Dry aging is the process where beef carcasses or primal cuts are hanged and aged for 28 to 55 d und...
The remote sensing of atmospheric trace gases investigates dynamic, microphysical and chemical processes in the Earth’s atmosphere, with the goal to understand, quantify and predict its natural variability and long-term changes. Accurate measurements of atmospheric trace gases from various observational platforms (ground-based stations, air craft, balloons, satellites) provide the data that are...
Abstract—In recent years, many researches of the drone (unmanned vehicles) have been carried out. Above all, the drone such as a multi-rotor craft might monitor and track suspicious person and find sufferers from disasters because it can move freely in the air. In the present research, a method was proposed that a multi-rotor drone can track a human by processing the two-dimensional images capt...
In this paper I describe Craft, a floating-point constraint solver that generates sets of random numbers satisfying designerspecified algebraic constraints. Craft is available both as a C# API and as a Unity3D component that allows designers to directly specify constraints in the Unity editor. Despite the exponential complexity of the algorithm, the algorithm performs well on design-inspired pr...
A number of mechanisms have been proposed to explain the phenomenon of frequency aging in the rubidium atomic clock. Helium permeation is one such mechanism. Briefly, the four millitorr of helium in the Earth’s atmosphere can permeate into the resonance cell, changing the clock frequency via the pressure shift of the 0-0 hyperfine transition. On orbit, any He in the resonance cell would permeat...
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