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50 results for “scale concentration”
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Research ArticleOpen accessIn the abstractIonospheric Total Electron Content Response to the December 26, 2004 North Sumatra EarthquakeA. Abdullah, A. F.M. Zain, M. H. Jusoh et al.Problem statement: Ionospheric precursors of earthquake have been studied by scientists and seismologists. This study aims at examining the relationship between the ionosphere and earthquake precursors. The effects of the anomalous electric field that penetrates the ionosphere on the electron concentration can be measured experimentally. This study reports on the variability of the Total Electron Content (TEC) during the December … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,908 accessesView PDFCite
Research ArticleOpen accessIn the abstractClassification of Pressure Range Based on the Characterization of Escherichia coli Cell Disruption in High Pressure HomogenizerRamakrishnan Nagasundara Ramanan, Beng Ti Tey, Tau Chuan Ling, Arbakariya B. AriffProblem statement: High pressure Homogenizer was used for cell disruption in many studies. But no work was carried out to study the characteristics of cell disruption in a wide range of pressure. Approach: The characteristics of Escherichia coli cell disruption was studied in Avestin small scale homogenizer by varying the operating pressure (50-1500 bar), cell concentration in the feed (1.39-12.51 … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 1 · 31 Mar 2009 · 9,626 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison Between Biological Treatment and Chemical Precipitation for Nitrogen Removal from Old Landfill LeachateLong Tengrui, Anas F. Al-Harbawi, He Qiang, Zhai JunThe study reports the results of a laboratory scale investigation aimed at evaluating the effectiveness of mature municipal landfill leachate treatment by a biological stage (used SBBR as a biological treatment) and Chemical precipitation (Used MAP precipitation (magnesium ammonium phosphate)) to study the nitrogen removal capabilities for treatment of sanitary landfill leachate containing high ammonia concentration, and the comparison between … …American Journal of Environmental Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 7,032 accessesView PDFCite
Research ArticleOpen accessIn the abstractMethane Emissions by Reed Formations on the Azov Sea CoastDmitry Nikolaevich Gar'kusha, Viktor Vladimirovich SukhorukovMapping of reed zones including both single-species formations and mixed formations of reeds and cattails has been done to assess methane emissions produced by reed formations growing on the coast and adjacent areas of the Azov Sea. In particular zones full-scale experiments have been carried out in order to measure methane emissions above common reed (Phragmites australis (Cav.) Trin. ex … …OnLine Journal of Biological Sciences, Vol. 19, Issue 4 · 24 Dec 2019 · 6,950 accessesView PDFCite
Research ArticleOpen accessIn the abstractLead Phytotoxicity Induced Changes in Biochemical Markers in Germination and Seedlings in Durum Wheat Triticum durum Desf. Cv.Vitron and GtaSoraya Slimani, Mokhtar Boudelaa, Saddek Abdelmadjid et al.Among the heavy metals most commonly found on land, lead is a strongly represented pollutant in soil and sediments. It is easily absorbed and accumulated in different parts of plants. On the macroscopic scale, lead causes unfavorable effects on plants. First and in the event of excess, it may exert toxicity affecting several stages of germination development in leaf formation … …American Journal of Environmental Sciences, Vol. 13, Issue 4 · 6 Sep 2017 · 7,480 accessesView PDFCite
EditorialOpen accessIn the abstractThe Timeless Contribution of Rootstocks towards Successful Horticultural Farming: From Ancient Times to the Climate Change EraIoannis E. PapadakisGrafting is a horticultural practice by which living vegetative plant organs (root, stem and/or buds) of either the same genotype or, usually, different genotypes belonging to the same species, genus, subfamily and/or family, are tightly connected to each other to form a double-compound plant. In fact, it is a method of asexual (clonal-vegetative) propagation of plants. The basal part of … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 4 · 16 Dec 2016 · 9,521 accessesView PDFCite
Research ArticleOpen accessIn the abstractGEOPHYSICAL AND LABORATORY STUDIES OF THE SPREAD AND QUALITY OF THE ODUKPANI LIMESTONE DEPOSITT. E. Chidomerem, A. E. Akpan, I. O. AkpanThe Odukpani limestone deposit has been investigated using geophysical and laboratory techniques with the aim of generating information on its spread and quality. Information generated from the analyses of twenty-six Vertical Electrical Soundings (VES) and core drilling data were used in the study. The VES data were acquired in both grid and random patterns in the immediate area of the … …American Journal of Environmental Sciences, Vol. 10, Issue 4 · 20 Jun 2014 · 7,097 accessesView PDFCite
Research ArticleOpen accessIn the abstractRETRACTED: Toxicity Assessment of Phosphonium Based Ionic Liquids Towards Female Guppy FishMohanad El-Harbawi, Yasmin Syazwani Bt. Yusri, M. Ismail HossainIn this study, two phosphonium based ionic liquids (butyl triphenyl phosphonium chloride and hexyl triphenyl phosphonium bromide) have been synthesized using quarternisation process. The toxicities of these Ionic Liquids (ILs) are unknown and may be harmful to humans and the environment. Therefore, the toxicity assessment of these ILs was carried out according to the Organization for Economic Cooperation and Development … …American Journal of Environmental Sciences, Vol. 9, Issue 6 · 20 Jan 2014 · 6,851 accessesView PDFCite
Research ArticleOpen accessIn the abstractDegumming of Raw Silk Fabric with Help of Marine Extracellular ProteaseDas Sumana, Mathummal Sudarshan, Ashoke Ranjan Thakur, Shaon RayChaudhuriProtease secreting microbe was isolated and characterized on the basis of their morphological, biochemical, physiological and 16S rDNA based molecular properties. The extracellular protease was quantified and characterized. Protease was used for different time (4, 8, 12 and 24 h) at different temperature (RT and 37°C) for optimization of the degumming process for raw silk fabric with enzyme dosage (0.2-1 … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 1 · 18 Mar 2013 · 8,498 accessesView PDFCite
Research ArticleOpen accessIn the abstractRooting Responses of Miracle Fruit (Synsepalum dulcificum) Softwood Cuttings as Affected by Indole Butyric AcidXing Wei Chen, Thohirah Lee Abdullah, Nur Ashikin Psyquay Abdullah, Siti Aishah HassanLarge scale productions of miracle fruit (Synsepalum dulcificum) faces some restrictions as the seeds are recalcitrant and propagation by cuttings is difficult to root. When grown from seed, miracle fruit takes 3 to 4 years to begin fruiting. A propagation technique by cuttings needs to be devised to produce early fruiting planting materials. However there has been no report on … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 4 Dec 2012 · 10,062 accessesView PDFCite