scholarly journals A comparative analysis among computational intelligence techniques for dissolved oxygen prediction in Delaware River

2017 ◽  
Vol 8 (3) ◽  
pp. 517-527 ◽  
Author(s):  
Ehsan Olyaie ◽  
Hamid Zare Abyaneh ◽  
Ali Danandeh Mehr
Keyword(s):  
Comparative Analysis ◽  
Dissolved Oxygen ◽  
Computational Intelligence ◽  
Delaware River

scholarly journals Comparative Analysis of the Effectiveness of Regulation of Aeration Depending on the Quantitative Characteristics of Treated Sewage Water

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Myroslav Malovanyy ◽  
Vira Shandrovych ◽  
Andriy Malovanyy ◽  
Igor Polyuzhyn
Keyword(s):  
Comparative Analysis ◽  
Dissolved Oxygen ◽  
Ammonium Nitrogen ◽  
Sewage Water ◽  
Initial Concentration ◽  
Treated Sewage ◽  
Quantitative Characteristics ◽  
Aeration Process ◽  
Effectiveness Of Regulation

Monitoring of work of the aeration tanks of operating town treatment plants is done. Based on the obtained results a conclusion has been drawn that sewage water is improperly treated from ammonium nitrogen. The velocity of the aeration process, depending on the concentration of dissolved oxygen and ammonium nitrogen, is investigated. The obtained investigation data became the basis for modeling the aeration process in industrial conditions depending on the required initial concentration of ammonium nitrogen.

scholarly journals Model approach of a robotic manipulator 3DOF using Machine Learning

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Darielson Souza ◽  
Josias Batista ◽  
Laurinda Reis ◽  
Antonio De Souza Junior
Keyword(s):  
Neural Network ◽  
Machine Learning ◽  
Comparative Analysis ◽  
Computational Intelligence ◽  
Machine Learning Techniques ◽  
Robotic Arm ◽  
Learning Techniques ◽  
Three Phase ◽  
And Robotics ◽  
Model Approach

Applications of robotics have been steadily expanding in recent years, and robotics is evolving every day. Currently, robotics is seen as an important area in many applications. Robotics and computational intelligence are increasingly working in parallel with the goal of better performance and productivity. This work has the objective of making an modeling of a robotic arm with three phase induction motor through machine learning techniques to obtain a better model that represents the plant. The techniques used were Articial Neural Network (ANNs): MLP and ELM. The techniques obtained a good performance, and they were evaluated through the multi-correlation coecient for a comparative analysis.

scholarly journals The Cost of Clean Water in the Delaware River Basin (USA)

2017 ◽  
Author(s):  
Gerald J. Kauffman
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Dissolved Oxygen ◽  
River Basin ◽  
Nox Reduction ◽  
Environmental Benefits ◽  
Clean Water ◽  
Delaware River ◽  
Oxygen Levels ◽  
The 1960S

The Delaware River has made a marked recovery in the half-century since the adoption of the Delaware River Basin Commission (DRBC) Compact in 1961 and passage of the Federal Clean Water Act amendments during the 1970s. During the 1960s, the DRBC set a 3.5 mg/l dissolved oxygen criteria for the river based on an economic analysis that concluded a waste load abatement program designed to meet fishable water quality goals would generate significant recreation and environmental benefits. Scientists with the Delaware Estuary Program have recently called for raising the 1960s DO criteria along the Delaware River from 3.5 mg/l to 5.0 mg/l to protect anadromous American shad and Atlantic sturgeon and address the prospect of rising temperatures, sea levels, and salinity in the estuary. This research concludes through a marginal abatement cost (MAC) analysis that it would be cost effective to raise DO levels to meet a more stringent standard by prioritizing agricultural conservation and wastewater treatment investments in the Delaware River watershed to reduce 90% of the pollutant load 13.6 million kg/year of nitrogen (30 million lb/year) for $160 million at 35% of the $449 million annual cost. The annual least cost to reduce nitrogen loads and raise dissolved oxygen levels to meet more stringent water quality standards in the Delaware River totals $45 million for atmospheric NOX reduction, $130 million for wastewater treatment, $132 million for agriculture conservation, and $141 million for urban stormwater retrofitting. This 21st century least cost analysis estimates that $50 million/year is needed to reduce pollutant loads in the Delaware River to raise dissolved oxygen levels to 4.0 mg/l, $150 million/year is needed to reach 4.5 mg/l, and $449 million/year is needed to reach 5.0 mg/l.

scholarly journals Comparative Analysis of The Two Sites of Lahe (Caulerpa sp.) Growth for Determine The Range of Atmospheric, Physical and Chemical Water Conditions

2020 ◽  
Author(s):  
Christophil Medellu ◽  
Ni Wayan Suriani ◽  
Alfrits Komansilan
Keyword(s):  
Comparative Analysis ◽  
Dissolved Oxygen ◽  
Sea Level ◽  
Air Temperature ◽  
Current Velocity ◽  
Salinity Range ◽  
Natural Growth ◽  
Ecological Conditions ◽  
Nitrate Concentrations ◽  
Physical And Chemical

Abstract Background Ecological conditions determine the growth and productivity of lahe (Caulerpa Sp.). We conduct a comparative study of ecological conditions that affected differences in growth and productivity of lahe in two locations, in the Batunderang village area and the Lapango village area, Sangihe Regency. The ecological factors that we examined include atmospheric, chemical and physical factors. Atmospheric variables include radiation intensity, duration of irradiation, the air temperature above sea level. The physical and chemical parameters of water studied include current velocity, seawater temperature, salinity, current strength, pH, dissolved oxygen, and nitrate concentrations. Results The indicator of lahe growth are: chain length, stem diameter, meristem diameter. The productivity indicator is the wet weight of the lahe harvested by farmers within 90 days. Comparative analysis between locations and measurement positions summarizes the range of ecological conditions for natural growth. The seabed for lahe is 0.8 m − 1.4 m lower than the surface of a coral reef and is not exposed at the lowest tide. The air temperature range at position 20 cm above sea level is 250C − 31.60C, while the temperature of seawater varies between 250C to 28.40C. Daily fluctuations in current velocity at high tides range from 0.09 cm/sec to 2 cm/sec. The salinity range between 27.8 ppt to 28.6 ppt. The pH range of seawater for natural growth is 7.6–8.12, while the dissolved oxygen range is 6 ppm to 6.25 ppm. Nitrate concentrations in lahe growth positions vary between 1.8 ppm − 1.96 ppm. Conclusion This ecological condition guarantees that the productivity of lahe varies between 20–30 kg/m2 for a 90-day harvest period.

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