scholarly journals REEF RUNWAY WAVE PROTECTIVE STRUCTURE, HONOLULU INTERNATIONAL AIRPORT, OAHU, HAWAII, STABILITY PERFORMANCE EVALUATION

1984 ◽  
Vol 1 (19) ◽  
pp. 181
Author(s):  
Robert S. Chun ◽  
Edward K. Noda ◽  
Elaine E. Tamaye
Keyword(s):  
Performance Evaluation ◽  
Protective Structure ◽  
International Airport ◽  
Stability Performance ◽  
Wave Conditions

An inspection survey of the Reef Runway Wave Protective Structure at the Honolulu International Airport was accomplished in 1982 to access the performance of the dolos and rock armored structure to date. The inspection showed the structure to be performing adequately considering that the design wave conditions were experienced.

scholarly journals A Methodology for Calculating Greenhouse Effect of Aircraft Cruise Using Genetic Algorithm-Optimized Wavelet Neural Network

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Yong Tian ◽  
Lina Ma ◽  
Songtao Yang ◽  
Qian Wang
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Performance Evaluation ◽  
Greenhouse Effect ◽  
Network Architecture ◽  
Wavelet Neural Network ◽  
Civil Aviation ◽  
International Airport ◽  
Fuel Flow ◽  
Reliable Assessment

Reliable assessment on the environmental impact of aircraft operation is vital for the performance evaluation and sustainable development of civil aviation. A new methodology for calculating the greenhouse effect of aircraft cruise is proposed in this paper. With respect to both cruise strategies and wind factors, a genetic algorithm-optimized wavelet neural network topology is designed to model the fuel flow-rate and developed using the real flight records data. Validation tests demonstrate that the proposed model with preferred network architecture can outperform others investigated in this paper in terms of accuracy and stability. Numerical examples are illustrated using 9 flights from Beijing Capital International Airport to Shanghai Hongqiao International Airport operated by Boeing 737–800 aircraft on October 2, 2019, and the generated fuel consumption, CO2 and NOx emissions as well as temperature change for different time horizons can be effectively given through the proposed methodology, which helps in the environmental performance evaluation and future trajectory planning for aircraft cruise.

Performance evaluation and spatial sludge distribution at facultative and maturation ponds treating wastewater from an international airport

2014 ◽  
Vol 70 (2) ◽  
pp. 226-233 ◽  
Author(s):  
Ricardo Gomes Passos ◽  
Marcos von Sperling ◽  
Thiago Bressani Ribeiro
Keyword(s):  
Performance Evaluation ◽  
Biological Treatment ◽  
Loading Rate ◽  
Low Cost ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Bathymetric Survey ◽  
International Airport ◽  
In Series ◽  
Satisfactory Quality

This paper presents a performance evaluation of facultative and maturation ponds in series treating wastewater from a large and intensively used international airport in Brazil, based on 16 years of regular monitoring. The wastewater from the airport showed similar or slightly lower concentrations compared to typical domestic sewage for most of the quality parameters. The contribution of effluents with possible industrial features (aircraft toilets and hangar effluent) did not seem to have adversely affected the characteristics of the influent in terms of aptitude to biological treatment. Overall, the ponds operated under very underloaded conditions (mean loading rate of 44 kg biochemical oxygen demand/ha.d in the facultative pond) and presented a satisfactory quality in terms of effluent concentrations for most parameters. A bathymetric survey of the ponds was done manually by a low-cost measurer constructed specifically for this purpose. After 27 years of operation, only 25% and 18% of the volumes of the facultative and maturation ponds were occupied by sludge. Specific sludge accumulation rates were 0.0071 m³/passenger.year for the facultative pond and 0.00017 m³/passenger.year for the maturation pond.

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