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105 articles for “PPM”
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Research ArticleOpen accessIn the abstractForecasting and Time Series Analysis of Air Pollutants in Several Area of MalaysiaMohd Zamri Ibrahim, Roziah Zailan, Marzuki Ismail, Muhd Safiih LolaProblem 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 automobile emissions was adopted in 1978. Approach: Yet, to this day, air pollution from both sources still poses a problem for the nation. In order to predict the status of future air quality … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,766 accessesView PDFCite
Research ArticleOpen accessIn the abstractArsenic Adsorption on Bauxite Mineral Using Batch Equilibrium TestFares Yahay Alshaebi, Wan Zuhairi Wan Yaacob, Abdul Rahim Samsudin, Esmail AlsabahiProblem statement: Study suggested a solution to remove arsenic contamination from contaminated water. Approach: Bauxite, which is a mineral, was proposed as natural remediation material used in this study. Bauxite was collected from Johor mining company in Teluk Ramunia, Johor Bharu, Malaysia. Batch equilibrium test was performed in accordance to different initial concentrations, shaking time and different initial pH values. … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 6,838 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment and Validation of High Performance Liquid Chromatographic Method for the Simultaneous Determination of Ceftazidime and Sulbactam in Spiked Plasma and Combined Dosage form-ZydotamMasoom Raza Siddiqui, Abu Tariq, Manu Chaudhary et al.Problem statement: To develop a sensitive method to determine simultaneously ceftizidime and sulbactam in spiked plasma and combined formulation. Approach: In this study an isocratic High performance liquid chromatographic method with UV detection at 230 nm was described for simultaneous determination of Ceftazidime and sulbactam sodium in plasma and combined dosage form. Chromatographic separation of two drugs was achieved on … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 7,675 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Study of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L.) Against Anopheles Mosquito LarvaeAzhari H. Nour, Salah A. Elhussein, Nour A. Osman et al.Problem statement: Certain basil essential oils were claimed to have a larvicidal activity towards mosquito's larvae. To test this claim the essential oils of four accessions of basil grown in Sudan were selected and tested for Anopheles larvae. Malaria is the major health problem in the Sudan and the whole country is now considered endemic, with varying degrees, about 35,000 … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 8,833 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeochemical, Petrographic and Magnetic Characteristics of Spinel Lherzolite Mantle Xenoliths from Jabal Remah Volcano, JordanAhmad Al-Malabeh, Tayel El-Hasan, Mahdi LataifehPeridotite ultramafic mantle xenoliths are occurring abundantly in the Harrat Al-Shaam basaltic province. Jabal Remah volcano is located in the Jordanian parts of the plateau and contains considerable amounts of mantle xenoliths within its pyroclastic successions. Mineralogical investigations show that the xenoliths are mostly of the spinel lherzolite type, which are characterized by a protogranular texture. Modally, the xenoliths are … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,184 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Review: Microbiological, Physicochemical and Health Impact of High Level of Biogenic Amines in Fish SauceMuhammad Zukhrufuz Zaman, A. S. Abdulamir, Fatimah Abu Bakar et al.Problem statement: Biogenic amines are basic nitrogenous compounds present in a wide variety of foods and beverages. Their formations were mainly due to the amino acids decarboxylase activity of certain microorganisms. Excessive intake of biogenic amines could induce many undesirable physiological effects determined by their psychoactive and vasoactive action. Fish sauce which is considered as a good source of dietary … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 8,920 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntifungal Activity of Essential Oils from Some Medicinal Plants of Iran against Alternaria alternateI. Hadizadeh, B. Peivastegan, H. HamzehzarghaniProblem statement: Increasing public concern over the level of pesticide residues in food especially fresh produce has built up adequate pressure for scientists to look for less hazardous and environmentally safer compounds for controlling post harvest diseases. Essential oils as registered food grade materials have the potential to be applied as alternative anti-fungal treatments for fresh fruits and vegetables. Approach: … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 9,810 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Storage Temperature on the Stability of Phytonutrients in Palm ConcentratesK. Chandrasekaram, M. H. Ng, Y. M. Choo, C. H. ChuahPalm phytonutrient concentrates; a valuable by-product from the production of palm biodiesel contains an abundance of natural phytonutrients such as carotenes, vitamin E, sterols, squalene and coenzyme Q. The present research described the concentration of phytonutrients that obtained from palm biodiesel production. The concentration of phytonutrients available in palm phytonutrients concentrate is ten times higher than in crude palm oil. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 9,590 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment of an Air Assisted Fuel Atomizer (Liquid Siphon Type) for a Continuous CombustorPipatpong Watanawanyoo, Sumpun Chaitep, Hiroyuki HiraharaThis research was the study of a fuel injection system in continuous combustor. Air atomizing nozzle is developed to good efficiency injection and used low air pressure (68.95-275.79kPa) to assist the atomizing nozzle. Refined palm oil and automotive diesel oil were the fuels for the experiment for the system of atomization. The atomizer was designed in a manner that air … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,549 accessesView PDFCite
Research ArticleOpen accessIn the abstractOrganochlorine Pesticide Residues in Fish Samples from Lagos Lagoon, NigeriaDavid Adeyemi, Grace Ukpo, Chimezie Anyakora, JohnPaul UnyimaduThe organochlorine pesticide (OCPs) residues were measured in three species of fish Tilapia zilli (Red belly Tilapia), Ethmalosa fimbriata (Bonga Shad) and Chrysichthys nigrodigitatus (Catfish). These fish species are a significant part of the diet of residents of Lagos Nigeria. The organochlorine pesticides analyzed include DDT(pp'1,1,1-trichloro-2,2-bis-(4-chlorophenyl) ethane), DDD, DDE (pp 1,1-dichloro-2, 2-bis-(4-chlorophenyl) ethylene, HCH (gamma 1,2,3,4,5,6-hexachlorocylohexane, HCB (hexachlorobenzene),Dieldrin (1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a octahydro-1,4,5,8 … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 9,909 accessesView PDFCite