Results 81 to 90 of about 231,922 (205)

System design of aircraft air conditioning system (1st report: Effect of component for high-pressure water separation on system operation)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The purpose of this study is to clarify the effect of a component for high-pressure water separation, which is included in the air conditioning system of the general commercial aircrafts, on the air-cycle operation (reverse Brayton cycle); the high ...
Osamu SATO, Hiroshi IWAI, Hideo YOSHIDA
doaj   +1 more source

EVALUATING THE INFLUENCE OF SOME DESIGN AND ENVIRONMENTAL PARAMETERS ON THE PERFORMANCE OF EARTH TO AIR HEAT EXCHANGER

open access: yesJournal of Engineering and Sustainable Development, 2018
The earth to air heat exchangers (EAHE) is effective passive cooling and heating techniques for buildings. This paper studies numerically the effect of some design and environmental parameters (moist content of soil, pipe material and thickness of ...
Mushtaq Ismael Hasan   +1 more
doaj   +1 more source

Kinematic and Thermodynamic Structures of Mesoscale Convective Systems During Heavy Rainfall in Greater Jakarta

open access: yesMakara Journal of Science, 2018
A mesoscale convective system (MCS) is a large complex convective cloud system associated with a contiguous rainfall area that contributes significantly to heavy rainfall.
Danang Eko Nuryanto   +3 more
doaj   +1 more source

Intensive Radiosonde Observations of Environmental Conditions on the Development of a Mesoscale Convective System in the Baiu Frontal Zone

open access: yesEarth and Space Science
Mesoscale convective systems (MCSs) that occur in the Baiu frontal zone (BFZ) can cause devastating flash floods during early summer in Japan; however, the environmental conditions necessary for their development require further investigation.
A. Manda   +7 more
doaj   +1 more source

Procedure for Determining Speed and Climbing Performance of Airships [PDF]

open access: yes
The procedure for obtaining air-speed and rate-of-climb measurements in performance tests of airships is described. Two methods of obtaining speed measurements, one by means of instruments in the airship and the other by flight over a measured ground ...
Thompson, F L
core   +1 more source

Field Evaluation of Herbicides on Small Fruit, Vegetable, and Ornamental Crops, 1997 [PDF]

open access: yes, 1999
Growers generally use herbicides to efficiently produce high-quality fruit and vegetables for processing or fresh market sales. Due to the smaller acreage of these crops compared to major field crops, fewer herbicides are registered for use in fruit and ...
Parker, Dolores A.   +4 more
core   +2 more sources

Multiple Equilibria in a Single-Column Model of the Tropical Atmosphere

open access: yes, 2007
A single-column model run under the weak temperature gradient approximation, a parameterization of large-scale dynamics appropriate for the tropical atmosphere, is shown to have multiple stable equilibria.
A. H. Sobel   +21 more
core   +1 more source

Convection initiation [PDF]

open access: yesتحقیقات کاربردی علوم جغرافیایی
The structure of deep moist convection can be influenced by various factors, including wind shear, available potential energy of convection, relative humidity, and vertical distribution of these variables.
Zahra Ghassabi   +2 more
doaj  

Soil water content and evaporation determined by thermal parameters obtained from ground-based and remote measurements [PDF]

open access: yes
A procedure is presented for calculating 24-hour totals of evaporation from wet and drying soils. Its application requires a knowledge of the daily solar radiation, the maximum and minimum, air temperatures, moist surface albedo, and maximum and minimum ...
Blanchard, M.   +5 more
core   +1 more source

Ice nucleus activity measurements of solid rocket motor exhaust particles [PDF]

open access: yes
The ice Nucleus activity of exhaust particles generated from combustion of Space Shuttle propellant in small rocket motors has been measured. The activity at -20 C was substantially lower than that of aerosols generated by unpressurized combustion of ...
Keller, V. W.
core   +1 more source

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