نتایج جستجو برای: shock standoff
تعداد نتایج: 104576 فیلتر نتایج به سال:
Unambiguous and selective standoff (non-contact) infield detection of nitro-containing explosives and taggants is an important goal but difficult to achieve with standard analytical techniques. Oxidative fluorescence quenching is emerging as a high sensitivity method for detecting such materials but is prone to false positives—everyday items such as perfumes elicit similar responses. Here we re...
A simple noncontact force sensor based on an optical fiber Bragg grating attached to a small magnet has been proposed and built. The sensor measures the force between the magnet and any ferromagnetic material placed within a few millimeters of the sensor. Maintaining the sensor at a constant standoff distance, material loss due to corrosion increases the distance between the magnet and the corr...
thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...
The need to increase the payload capacity of rockets motivates development high-power rocket engines. For a chemical propulsion system, this results in an increasing thermal load on structure, especially combustion chamber and nozzle must be able withstand extreme caused by high-temperature high-pressure gas. In order protect structure from effect heat flux, it is necessary counteract such with...
Recently developed markup tools for dialogue work are quite sophisticated and require considerable knowledge and overhead, but older tools do not support XML standoff markup, the current annotation style of choice. For the DIAG-NLP project we have created a “lightweight” but modern markup tool that can be configured and used by the working NLP researcher.
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