139 results for “Seasonal”

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Research ArticleOpen accessEvery word in the titleSeasonal Distribution of Organic Carbon in the Surface Sediments of the Terengganu Nearshore Coastal AreaS. Hasrizal, B. Y. Kamaruzzaman, I. Sakri et al.Problem statement: The distribution of organic carbon in the surface sediment is a crucial indicator for current productivity in the ocean especially in the nearshore area. The difference of organic carbon in the surface sediment reflects the influence of current movement on the bottom sediment. Approach: This study was carried out to oversee the difference of organic carbon distribution during … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 7,473 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAutomobile Spray Paint Dust and Human Health: A Multi-Site Environmental Health Risk Assessment of Carcinogenic and Non-Carcinogenic Effects in South-Eastern NigeriaAdindu Ihuoma Blossom, Ubouh Emmanuel Attah, Obasi Kalu Omokorie, Raimi Morufu OlalekanInformal automobile spray-painting operations release metal-laden dust, posing occupational and residential health risks. Seasonal variations, receptor-specific exposure, and metal composition influence non-carcinogenic and carcinogenic hazards, yet data from South-Eastern Nigeria remain limited. This study quantified heavy-metal exposure in automobile spray-paint dust, assessed receptor-specific non-carcinogenic (HI) and carcinogenic (ILCR) risks, examined seasonal and metal-specific trends, and evaluated source attribution to inform … …American Journal of Environmental Sciences, Vol. 22, Issue 1 · 22 Jun 2026 · 1,555 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsSpatio-Temporal Anomaly Detection in Groundwater Electrical Conductivity Using a Hybrid Framework of Isolation Forest and AutoencoderEunji Lee, Seunghyun Lim, Seojun Lee, Abhijit DebnathMonitoring groundwater quality is vital for environmental safety and resource sustainability. This study combines Isolation Forest and Autoencoder models to detect anomalies in Electrical Conductivity (EC) and temperature, using monthly data collected in South Korea between 2006 and 2023. Linear regression and the Mann-Kendall test reveal a weak, episodic downward EC trend. Seasonal decomposition indicates annual cyclicality, while residual analysis … …Journal of Computer Science, Vol. 22, Issue 1 · 14 Feb 2026 · 1,918 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsPasture Productivity Depending on the Method of Pasture use in the Steppe Zone of Northern KazakhstanBalzhan Akhylbekova, Nurlan Serekpayev, Adilbek Nogayev, Bakhytbek ZhumabekUnsystematic grazing of animals and continuous use of pastures leads to their degradation and, accordingly, to a shortage of pasture forage for the production of competitive environmentally friendly livestock products. The proportion of productive grasses in grass covers is decreasing; therefore, there is an urgent need to preserve valuable plant species in pasture grass, restore the productivity of natural vegetation … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 3 Nov 2022 · 5,909 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsIxodid Ticks: Epizootic Status and Methods for Tick Population Size ReductionAsem Bekbolatovna Myrzhieva, Gulnar Sabyrovna Shabdarbaeva, Gulnar Eldesbaevna Turganbaeva et al.The paper presents the results of the study of the distribution and seasonal dynamics of ixodid ticks in certain locations and farms of the Almaty, Kyzylorda and Turkestan regions. The results of the study show that the following genera are prevailing in animals and natural biotopes: Hyalomma (H. detritum, H. axiaticum, H. plumbeum, H. scupense and H. anatolicum), Ixodes (Ixodes … …OnLine Journal of Biological Sciences, Vol. 20, Issue 4 · 13 Nov 2020 · 6,366 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsTrend and Pattern in Average Monthly Maximum Temperatures in Thailand from 1986 to 2015Manachai Rodchuen, Samruam Chongcharoen, Walaithip BunyatisaiThis research aims to study the trends and patterns of average maximum temperature change data of monthly surface in Thailand during the 30 year-period from 1986 to 2015 that has already eliminated seasonal variations and autocorrelation. The data set obtained from Climatological center, Meteorological Development Division, Thailand Meteorological Department for 73 completed recording stations. The climatically regions of Thailand meteorology … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 25 Mar 2020 · 7,942 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsHydrological and Sediment Transport Simulation to Assess the Impact of Dam Construction in the Mekong River Main ChannelSatoshi Kameyama, Hiroto Shimazaki, Seiichi Nohara et al.The downstream impact of dams is a complex problem in watershed management. In the upper Mekong River watershed and its main channel, dam construction projects were started in the 1950s to meet increasing demands for energy and food production. Dams called the Mekong Cascade were completed on the Mekong River in China, the Manwan Dam in 1996 and the Dachaoshan … …American Journal of Environmental Sciences, Vol. 9, Issue 3 · 29 Jun 2013 · 8,571 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsGeneral Circulation in the Malacca Strait and Andaman Sea: A Numerical Model StudySyamsul Rizal, Peter Damm, Mulyadi A. Wahid et al.In the Andaman Sea and Malacca Strait, as in other parts of the Indian Ocean, the seasonal change of the wind plays a most important role: the south-west (hereafter SW) is monsoon active from June through September and the north-east (hereafter NE) monsoon is active from December through February. During the NE monsoon the winds are directed from the north … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 11 Aug 2012 · 18,566 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsForecasting Daily Demand in Cash Supply ChainsMichael WagnerProblem statement: Previous studies focused on explaining the long run determinants of currency demand offering limited insight into the short-run determinants and co-variability of daily demand in cash supply chains. Approach: This study contrasted competing techniques of forecasting daily demand in cash supply chains in order to determine the overall performance and the potential of joint forecasting for integrated planning. … …American Journal of Economics and Business Administration, Vol. 2, Issue 4 · 28 Nov 2010 · 7,736 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsUptake and Translocation of Iron by Native Tree Species In A Constructed Wetland Treating Landfill LeachatesA. Snow, A. E. Ghaly, R. Cote, A.M. SnowA surface flow wetland was constructed in the Burnside Industrial Park, Dartmouth, Nova Scotia, to treat stormwater runoff from the surrounding watersheds which are comprised primarily of commercial properties and two former landfills. The objectives of this study were: (a) to compare the uptake of iron by red maple, white birch and red spruce trees growing under flooded soil conditions … …American Journal of Applied Sciences, Vol. 5, Issue 9 · 30 Sep 2009 · 6,868 accessesView PDF Cite