Forests cover a large part of the globe, and are responsible for a large amount of evaporation and the fixation of carbon. To be able to better understand this atmospheric exchange of forests, and how the forests will behave under future climate change, both accurate measurements as well as models are required. However, due to their height and hete...
Published in Measurement Science Review
The paper describes the design and technical parameters of a medical thermoelectric device developed for diagnosing and monitoring the ophthalmic diseases. The main elements of the device are a specially designed thermoelectric heat flux sensor and a thermocouple temperature sensor connected to a data acquisition unit. The sensor is a thermoelectri...
Published in Frontiers in Marine Science
Water temperature in estuaries is sensitive to thermal discharges and expansive tidal flats; as such, this parameter is essential in maintaining estuarine ecosystem. Semi-enclosed water bodies with poor water exchange easily accumulate heat. This is especially true for Xiangshan Bay, which contains two power plants and a large area of tidal flats. ...
Published in Russian Engineering Research
AbstractThermodynamic analysis of complex systems is proposed on the basis of efficiency indices taking account of the second law of thermodynamics and the concept of exergy (a form of energy that may be converted to other forms). The following efficiency indices are formulated: Kr1, the unit surface area of the radiant heat exchanger; and Kr2, the...
Published in Russian Engineering Research
AbstractThe structure of the external loop in the heat management system of a spacecraft with heat stores is optimized. Criteria for assessing the system’s effectiveness are evaluated.
Published in Journal of Ocean University of China
The Nordic Seas have a significant impact on the climate system. Here 23-day air-sea heat fluxes were analyzed from an in situ air-sea coupled buoy deployed in the Lofoten Basin from 5 August 2012 to 27 August 2012. The buoy captured two stages of strong south and north winds. The observations indicate that warm and wet air transported by the south...
Published in Plasma Sources Science and Technology
A radial particle-in-cell model of the weakly-collisional plasma discharge in a Hall thruster, provides the non-Maxwellian velocity distribution functions (VDF) of ions and electrons. The model considers a radial magnetic field, secondary electron emission from the two walls, and phenomenological models of anomalous electron scattering. The electro...
Published in Atmospheric and Oceanic Optics
AbstractResults of calculations of heat fluxes (kinematic temperature fluxes) in the surface air layer are discussed based on experimental data on variations in the air temperature and wind vector components on different scales for a territory with a natural landscape (at two altitudes in the surface layer) and an urbanized territory. A conclusion ...
Published in Thermal Engineering
AbstractOne of the most important problems today is to solve heat-supply problems and simultaneously decide the problem of energy saving. Systems of low-temperature electric infrared heaters show high efficiency. Radiant heating systems have several advantages over traditional heating systems, like the possibility of heating both the entire room an...
Published in Thermophysics and Aeromechanics
The results of studies of solid tungsten rod-type cathodes in different gases are presented. The thermal states of the electrodes under the action of cathode plasma, radiation and joule heat release are determined. The thermal nature of the rate of destruction (erosion) of the thermocathode is shown depending on the main determining parameters of t...
