Volume 5, Issue 5 (2009) | American Journal of Environmental Sciences

Effect of Mixing Urea with Humic Acid and Acid Sulphate Soil on Ammonia Loss, Exchangeable Ammonium and Available Nitrate

Mohd Taufik Mohd Yusuff — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.588.591

Problem statement: Ammonia loss due to rapid hydrolysis of urea in soil following surface application can be substantial. Ammonia loss in agriculture is estimated to be 1 to 60%. This laboratory study...

Mathematical Model of Double Pass Photovoltaic Thermal Air Collector with Fins

Ebrahim M. Ali Alfegi — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.592.598

Problem statement: The efficiency of photovoltaic cells is generally temperature dependent (efficiency decrease when the temperature of the photovoltaic cells increase). This problem can be solved by ...

Time Series Analysis Model for Rainfall Data in Jordan: Case Study for Using Time Series Analysis

P.E. Naill M. Momani — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.599.604

Problem statement: Time series analysis and forecasting has become a major tool in different applications in hydrology and environmental management fields. Among the most effective approaches for anal...

Controlling Ammonia Volatilization by Mixing Urea with Humic Acid, Fulvic Acid, Triple Superphosphate and Muriate of Potash

Shamsuddin Rosliza — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.605.609

Problem statement: Inefficient use of inorganic fertilizer such as urea is caused by substantial losses of ammonia when urea is surface-applied. Ammonia losses can be controlled by adding acidic mater...

Effect of Grain Size on Selected Physico-Chemical Properties of Clay

Osumanu Haruna Ahmed — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.610.612

Problem statement: Mixture of the right proportion of expanding and non-expanding clays to improve plasticity (moldability) of clays used in the pot industry of Malaysia is yet to be well investigated...

Measurements and Model Calibration of Urban Traffic Noise Pollution

N. Al-Mutairi — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.613.617

Problem statement: The problem of urban traffic noise pollution is universal and in the past few decades it has grown to the point that it has become a major concern for both the public and the policy...

Hybrid Photovoltaic Thermal (PV/T) Air and Water Based Solar Collectors Suitable for Building Integrated Applications

Adnan Ibrahim — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.618.624

Problem statement: Experiments have been conducted to investigate the effect of mass flow rates on the electrical, thermal and combined of photovoltaic thermal efficiencies of the hybrid collectors. A...

Forecasting and Time Series Analysis of Air Pollutants in Several Area of Malaysia

Mohd Zamri Ibrahim — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.625.632

Problem statement: In keeping abreast with Malaysia’s rapid economic development and to meet the nation's aspiration for an improved quality of life, clean-air legislation limiting industrial and au...

Landscape Change and Sandy Desertification Monitoring and Assessment

Eltahir Mohd Elhadi — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.633.638

Problem statement: The objective of this study is to develop techniques for assessing and analyzing sand desertification in the northern part of Shaanxi Province, China. Approach: In order to reveal t...

Co-Digestion of Palm Oil Mill Effluent and Refined Glycerin Wash Water for Chemical Oxygen Demand Removal and Methane Production

A. Sulaiman — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.639.646

Problem statement: Refined Glycerin Wash Water (RGWW) from the oleochemical industry contains high Chemical Oxygen Demand (COD) and requires proper treatment before disposal. Unfortunately the wash wa...

Monitoring Growing Season Length of Deciduous Broad Leaf Forest Derived From Satellite Data in Iran

Sasan Babaei Kafaki — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.647.652

Problem statement: Leaf phenology describes the seasonal cycle of leaf functioning and is essential for understanding the interactions between the biosphere, the climate and biogeochemical cycles. Thi...

Biodegradation and Recycling of Urban Solid Waste

S. P. Gautam — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.653.656

Problem statement: Rapid urbanization and population growth are largely responsible for very high increasing rate of solid waste in the urban areas, its proper management and recycling is major proble...

Temporal Variability on Lowland River Sediment Properties and Yield

Mohd Khairul Amri Kamarudin — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.657.663

Problem statement: A sediment analysis study was conducted at the Chini River on 16 and 31 August 2008. This study was conducted to review the formation of suspended sediment load in the Lake Chini ca...

Production of Potassium and Calcium Hydroxide, Compost and Humic Acid from Sago (Metroxylon sagu) Waste

C. P. Auldry — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.664.668

Problem statement: Agriculture waste such as Sago Waste (SW) has a potential to cause pollution when the waste is discarded into rivers. In order to add value to SW, a study was conducted to produce p...

Detecting Hornbeam Trees Phenological Characteristics of Mountain Forest

Sasan Babaei Kafaki — 2009-10-31

American Journal of Environmental Sciences, Published online: 31 October 2009; doi:10.3844/ajessp.2009.669.677

Problem statement: Phenology is the study of the seasonal occurrence of developmental or life cycle events, such as bud break, flowering, or autumn leaf drop. The proposed study attempted to quantify ...