Báo cáo " Effects of using wastewater as nutrient sources on soil chemical properties in peri‐urban agricultural systems " ppt

... Environment International28(2002)481.  VNUJournal of Science,EarthSciences24(2008)87‐95 87 Effects of using wastewater as nutrient sources on soil chemical properties in peri‐urban agricultural systems NguyenManhKhai 1, *,PhamThanhTuan 2 ,NguyenCongVinh 3 ,IngridOborn 4  1 ... assessing environmental risks of applying wastewater in agro‐ecosystems. The ma...

Ngày tải lên: 14/03/2014, 15:20

... 1. Introduction * There is a growing concern about the risk of contamination of waters, soils and agricultural products, in the rapid urbanizing areas in the _______ * Corresponding author. ... Measurement of concentrations of trace metals in arable soils with animal manure application using instrumental neutron activation analysis and the concentrated acid diges...

Ngày tải lên: 05/03/2014, 16:20

... showed that increasing concentration of H 2 O 2 caused decreasing COD of effluent after treatment. Optimal concentration was found out as 1.6 ml/l (Table 6), at this concentration of H 2 O 2 ... than elongate the treatment time. Effect of CaO concentration Concentration of CaO was varied in range of 3.2 to 4.8 g/l with 0.25 g/l of CaOCl 2 added. The effect of con...

Ngày tải lên: 12/02/2014, 17:20

... generally interpreted in terms of ligand- induced ATPase activation and concomitant transitions between substrate-binding and substrate-releasing conform- ational states. The consecutive steps of the ... data) 1 interactwithPgpinsuchamannerthat preincubation of the cells with UIC2 completely suppresses the subsequent binding of MM12.10. In contrast, UIC2 mAb added at saturating co...

Ngày tải lên: 08/03/2014, 23:20

... increases with x. In fact M Se measured in experiment decreased with x. It means that with increasing Zn content in ferrite, A-B interaction became weakening so should be compared with B-B interaction ... canting structure of ferrites was examined by neutron scattering. The studies on spinel ferrites were started long time ago but recently a large number of publications deali...

Ngày tải lên: 22/03/2014, 11:20

... the invert spinel crystalline structure as in the bulk phase. The width of peaks of the sample with higher concentration was broader than that of the peaks of sample with lower concentration. ... Analysis) as a function of temperature (heating rate of 10°C/min) was studied by a DSC SDT 2960 TA Instruments. 3. Results and discussion The mechanism of formation of pa...

Ngày tải lên: 28/03/2014, 10:20

... conditions were done as described by [9]. Determination and analyses Extraction and determination of ginsenoside production were determined as reported previously [8,9]. Determination of ... 37. Effects of auxins on growth and saponin production in callus cultures of P. ginseng. Planta Med., 47, 3 (1983) 183. [4] S. Liu, J.J. Zhong., Simultaneous production of gi...

Ngày tải lên: 28/03/2014, 10:20

... crystalline phase of WO 3 . The Raman peak at 256.6 cm -1 indicates the deformation vibration of O – W – O bond and 600 – 900 cm -1 region relates to stretching vibrations of W – O bonds [24]. ... during four hours. The crystalline structure of WO 3 thin films was investigated by XRD patterns using Cu K α radiation at 1.5406 Ǻ wavelength and Raman spectroscopy using He – N...

Ngày tải lên: 13/02/2014, 03:20

... whether using an off-the-shelf anaphora resolution algorithm can improve the performance of a baseline opinion mining system. We present an analysis based on two different anaphora resolution systems. ... exten- sions to an off-the-shelf algorithm which in turn yield significant improvements. 1 Introduction Over the last years the task of opinion mining (OM) has been the topic of...

Ngày tải lên: 17/03/2014, 00:20

... on document length. Minimum thresholds for the number of words, sen- tences and paragraphs to include in LEADs increase as document length increases. In an examination of more than 9,000 news ... Using Leading Text for News Summaries: Evaluation Results and Implications for Commercial Summarization Applications Mark Wasson LEXIS-NEXIS, a Division of Reed Elsevier plc 944...

Ngày tải lên: 17/03/2014, 07:20