Báo cáo " Effects of biosolids application on soil chemical properties in peri-urban agricultural systems " doc

... 202 Effects of biosolids application on soil chemical properties in peri-urban agricultural systems Nguyen Manh Khai 1, *, Pham Quang Ha 2 , Nguyen Cong Vinh 3 , Jon Petter Gustafsson 4 , Ingrid ... manure than in the composted manure (Table 2). 3.3. The effects of applying biosolids on trace metal concentrations in soil The concentrations of Rev...

Ngày tải lên: 05/03/2014, 16:20

... found in earlier publications about effects of sewageirrigation on soils[13,21]. The application of wastewater in theperi‐ urban sites of Hanoi and Nam Dinh cities increased soil ... soils and control soils in the exchangeable (NH 4 NO 3 ) fraction of these metals (Table 4). The reason of this might be low concentrations in combinationwithavariatio...

Ngày tải lên: 14/03/2014, 15:20

... examination of properties of ferrites it could be started from the parameters characterizing for superexchange interaction types A-A, B-B, A-B. Interaction A-A belongs to neighbor magnetic ions ... (B-site). In inverse spinel a half of Fe 3+ ions locates at A site and the rest Fe 3+ ions together with divalent ions locate at B site. In mixed spinel ferrite, both Fe 3+ ions a...

Ngày tải lên: 22/03/2014, 11:20

... Li, J.T. Yu, J.J. Zhong, Combined effects of initial sucrose concentration and inoculum size on cell growth and ginseng saponin production by suspension cultures of P. ginseng. Process Biochem. ... conditions were done as described by [9]. Determination and analyses Extraction and determination of ginsenoside production were determined as reported previously [8,9]. Determi...

Ngày tải lên: 28/03/2014, 10:20

... the solution or/and aggregation of other nuclei to their surface until the final size was attained. In conventional coprecipitation, size (d) can be controlled by concentration of reactants ... different aqueous phase types – one containing metal ions (reactant A), the other, a precipitating agent (reactant B). The first one consisted of an aqueous solution of iron chloride...

Ngày tải lên: 28/03/2014, 10:20

... initial nitrogen concentration of 40 mM [12]. In the simultaneous production of ginseng saponin and polysaccharide by suspension cultures of P. ginseng, [4] reported that production of ginseng ... ammonium (NH 4 + ) on production of ginseng saponin and polysaccharides by suspension cultures of Panax ginseng were observed by [4]. The results indicated that the specific...

Ngày tải lên: 12/02/2014, 10:20

... effect in soft magnetic amorphous ribbons of Finemet-like alloy [17]. This behaviour has essential meaning in application of magnetic refrigeration. In this report, we present the influence of ... difference of the speed of the wheel has influenced on the crystallization, magnetic properties and magnetocaloric effect of the ribbons. The increase of cooling rate lea...

Ngày tải lên: 05/03/2014, 14:20

... 2.07%. In general, flow in months of flood season has an increasing trend. At Yen Thuong station, flow in August has the highest increasing trend, from 4.4% in period 2020-2039 to 17.7% in period ... and decreases in January and May more than in the other months. At meteorology stations in mainstream of Ca River, by the end of the 21 st century, the monthly rainf...

Ngày tải lên: 05/03/2014, 16:20

... data of Power Engineering Consulting Joint Stock Company 1 [4], Ly Tien river in China territory has 11 reservoirs with nine of them in operation, Ban Long river in China territory has 8 hydropower ... 0.5-0.8m on Gam river at Bao Lac. Regulation activities of reservoirs in China make the tendency of drought flow a month faster. Discharge in the first months of Nov...

Ngày tải lên: 05/03/2014, 16:20

... expenditure for construction and protection of infrastructure in low-lying areas; and (5) Increased pollution of the aquatic environment in the coastal zone and salinity intrusion of the Huong River ... 1.0 1.2 1.5 2.0 2.5 Results also indicate that rainfall in the rainy season would increase by 25%. In contrast, rainfalls in the early months of dry season (Decembe...

Ngày tải lên: 05/03/2014, 16:20