materials which on the basis of their intrinsic value are returned to storage after having been used in the production process
ON THE TRANSFORMATION PROCESSES OF THE GLOBAL PULP AND PAPER INDUSTRY AND THEIR IMPLICATIONS FOR CORPORATE STRATEGIES – A European perspective pot
Ngày tải lên :
18/03/2014, 02:20
... positioned in the middle of the value chain, and they generate only ca % of the total value creation in the paper value chain – companies need to consider the viability of their current value chain positioning ... degree of concentration in an industry These are the market concentration ratio – which calculates the market share of the top companies - and the Herfindahl index which is defined as the sum of the ... the factors contributing to industry’s profitability is based the results of profitability analysis, the cost structure of the industry and the unit costs of main production inputs in the main...
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Báo cáo khoa học: "Forecasting wood resources on the basis of national forest inventory data. Application to Pinus pinaster Ait. in southwestern France" ppsx
Ngày tải lên :
08/08/2014, 14:21
... regimes The age and intensity of thinnings are not fixed, but can vary according to these regimes The inputs of the model are the initial characteristics of the stand as well as some features of the ... Despite the increasing intensity of final cuts and thinnings, the simulations indicated that wood resources continued to increase in the ‘Landes de Gascogne’ during 1988–1998 Final harvest The simulated ... Figure Top: Evolution of the simulated total volume in the studied area during the period 1978–1988 (left) and 1988–1998 (right) Bottom: Evolution of the volume increment in the studied area during...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 1 pptx
Ngày tải lên :
15/12/2013, 00:15
... during the last two decades However, since then the controlled production of larvae from captive broodstock, or in other words the hatchery production of fry, has now become a routine operation ... harvesting system 5.1.3.4 Flow-through harvesting 5.1.3.5 Plankton light trapping 5.1.4 Zooplankton grading 5.1.5 Transport and storage of collected zooplankton 5.2 Production of copepods 5.2.1 Introduction ... natural plankton for feeding in commercial hatcheries may therefore appear evident, in practice the use of natural plankton often entails many constraints which will be explained in detail in chapter...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 2 doc
Ngày tải lên :
15/12/2013, 00:15
... caused by a variety of reasons, including the depletion of a nutrient, oxygen deficiency, overheating, pH disturbance, or contamination The key to the success of algal production is maintaining ... According to the algal concentration, the volume of the inoculum which generally corresponds with the volume of the preceding stage in the upscaling process, amounts to 2-10% of the final culture ... disadvantage is the need to prevent contamination during the initial inoculation and early growth period Because the density of the desired phytoplankton is low and the concentration of nutrients...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 3 ppt
Ngày tải lên :
15/12/2013, 00:15
... species belonging to the genus Brachionus are used in aquaculture As outlined in the introduction the most widely used species is Brachionus plicatilis, a cosmopolitan inhabitant of inland saline and ... differs according to their toxicity and the initial condition of the rotifers Orientating concentrations for this type of disinfection are 7.5 mg.l-1 furazolidone, 10 mg.l-1 oxytetracycline, 30 mg.l-1 ... Although the content of DHA and EPA is much lower in the latter emulsions, their relative concentration to total FA is much higher It is interesting to note that after enrichment the composition of the...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 4 pptx
Ngày tải lên :
15/12/2013, 00:15
... differentiated on the basis of their biometrical characteristics In spite of small variations between batches of the same strain, possibly caused by environmental and/or processing factors, generally the ... a new industry Early pioneers exploited in 1951 the cyst production of Artemia at the Great Salt Lake in Utah, USA First harvests of the lake yielded 16 tons of finished product During the mid-1950’s, ... variation in hatching percentage, rate and efficiency However, none of these parameters is strain specific as they are influenced by a wide array of factors like harvesting, processing, storage...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 5 docx
Ngày tải lên :
15/12/2013, 00:15
... function of the tank size and the density of cysts incubated Excessive foaming can be reduced by disinfection of the cysts prior to hatching incubation and/or by the addition of a few drops of a non-toxic ... example, for the culture of carp larvae during the first two weeks, the use of decapsulated cysts constitutes a saving of over one third in the amount of Artemia cysts used, compared to the use of live ... attached to the shell) Through the transparent hatching membrane one can follow the differentiation of the pre-nauplius into the instar I nauplius which starts to move its appendages Shortly thereafter...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 6 docx
Ngày tải lên :
15/12/2013, 00:15
... focusing a light source on the transparent conical part of the bottom Nauplii should not be allowed to settle for too long (i.e., maximum to 10 min.) in the point of the conical container, to prevent ... requirements of marine organisms are poorly understood and may be satisfied through the consumption of seawater, the main concern regarding the mineral composition of Artemia is whether they meet the ... control The incidence of microbial diseases has increased dramatically along with the degree of intensification in the larval production of aquaculture species Treating microbial infections in...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx
Ngày tải lên :
15/12/2013, 00:15
... particles to settle on the plates A drain fixed on top of the plates finally evacuates the clean water to the stock tank Optimal retention times of 20 minutes assure maximal sedimentation of the waste ... rate, ingestion rate and/or assimilation: including the quality and quantity of the food offered, the developmental stage of the larvae, and the culture conditions More detailed information concerning ... and then allowing the feed particles to settle by cutting off the aeration for another half an hour Dissolved materials will foam off or remain in the water fraction which can be drained off...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 8 pptx
Ngày tải lên :
15/12/2013, 00:15
... optimal storage prior to final packaging mixing ® obtain constant hatching quality PACKAGING ® oxygen free conditions to permit long time storage (>1 year) DRY STORAGE ® special storage conditions to ... strong brush to the inside of the drum which rotates in the opposite direction of the drum Apart from functioning as a mixing device, it will prevent the cysts from sticking to the sides of the ... to the hatching containers · Provide sufficient aeration and illumination, especially when cysts are incubated in late afternoon or evening The quantity of cysts needed to obtain the number of...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 9 pptx
Ngày tải lên :
15/12/2013, 00:15
... concentrated In the case of ponds, the frame of the plankton net may be fixed to the pond gates The amount of zooplankton collected depends on the zooplankton concentration in the water flowing out of the ... transport the harvested zooplankton in 50 l containers Under these conditions the survival of the zooplankton depends on the amount of oxygen dissolved in the remaining water At a concentration of 100 ... eutrophication of the culture medium; the main problem here is the clogging of the fine-mesh screen Food concentrations are maintained at 5.104 to 2.105 cells.ml-1 of Chaetoceros gracilis corresponding to...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 10 pptx
Ngày tải lên :
15/12/2013, 00:15
... is used per day per ton of water; the fertilization increasing during the subsequent weeks from 20 l.m-3.day-1 in the second week to 30 l.m-3.day-1 in the following weeks The inoculation of the ... best on a diet of the cryptomonads, Rhodomonas minuta and Cryptomonas sp., containing high levels of HUFA (more than 50% of the fatty acids in these two algae consisted of EPA and DHA, while the ... of an extinguished population after unfavourable seasonal conditions 6.1.2 Nutritional value of Daphnia The nutritional value of Daphnia depends strongly on the chemical composition of their food...
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tem study on the formation process of tio2 nanotubes
Ngày tải lên :
20/03/2014, 13:08
... analysis indicates the sample(4a) contains 5.8 atomic percent of Na and the latter(4d) contains only trace of Na, it shows that the treatment with HCl solution is helpful for the removing of Na+ ion ... 2a, the swelling stripes can be seen on the side pointed by arrow, but not observed on the side perpendicular to it This phenomenon hints that the swelling is anisotropic In Figure 2b, there are ... nm8 Owing to the repulsive force between OH- groups, the distance of the layers of the wall broadens to 0.8 nm Based on the above results, it can be concluded that the anisotropic swelling took...
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study on the production of ethanol from mango peel
Ngày tải lên :
06/10/2015, 13:05
... pollution in the environment in addition to the energy generation The major part of this kind of waste is mostly discarded and it is the main source for increasing the pollution in environment on ... Activities in the research: - Study on the effect of the concentration of H2SO4 on hydrolysis - Study on the effect of time and temperature on hydrolysis - Study on the effect of yeast density on fermentation ... DISCUSSION 3.1 Hydrolysis of mango peel 3.1.1 Effect of the concentration of acid H2SO4 on hydrolysis Among factors affecting the efficiency of acid hydrolysis, acid concentration is considered one of...
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Tài liệu GUIDELINES FOR THE PRODUCTION, PROCESSING, LABELLING AND MARKETING OF ORGANICALLY PRODUCED FOODS docx
Ngày tải lên :
14/02/2014, 03:20
... distribution including in- process and finished product testing, in order to verify that they conform to requirements.7 For organic food, inspection includes the examination of the production and processing ... referred to in Section of these guidelines which are not in their packaging for the end consumer should be transported in a manner which should prevent contamination or substitution of the content ... referred to in Section of these Guidelines, the operator shall check: – the closing of the packaging or contained where it is required; – the presence of the indications referred to in A.10 of this...
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Tài liệu GUIDELINES FOR THE PRODUCTION, PROCESSING, LABELLING AND MARKETING OF ORGANICALLY PRODUCED FOODS pdf
Ngày tải lên :
18/02/2014, 07:20
... distribution including in- process and finished product testing, in order to verify that they conform to requirements.7 For organic food, inspection includes the examination of the production and processing ... referred to in Section of these guidelines which are not in their packaging for the end consumer should be transported in a manner which should prevent contamination or substitution of the content ... referred to in Section of these Guidelines, the operator shall check: – the closing of the packaging or contained where it is required; – the presence of the indications referred to in A.10 of this...
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Báo cáo khoa học: Intrinsic local disorder and a network of charge–charge interactions are key to actinoporin membrane disruption and cytotoxicity ppt
Ngày tải lên :
14/03/2014, 23:20
... targeting these proteins to the membranes as the electrostatic interactions are effective at long range In addition, the loss of interactions due to the R29Q substitution endows Fig Backbone heteronuclear ... ribbon diagram of the minimal energy structure of StnII-Y111N are shown in (C) The orientation of the structures in (A) and (B) is the same as in the left panel of (C) Some interesting regions ... respectively) To date, no specific function has yet been assigned to this region of the actinoporin structure Considering the results mentioned above, it is tempting to speculate that the conformational processes...
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AUDIT OF THE CONTROL SYSTEM GOVERNING THE PRODUCTION, PROCESSING, DISTRIBUTION AND IMPORTS OF ORGANIC PRODUCTS potx
Ngày tải lên :
28/03/2014, 19:20
... The nature of the supervision has to be determined on the basis of an assessment of the risk of the occurrence of irregularities or infringements of the provisions set out in the EU regulation ... finalise their reports and transmit them to the Commission, within six months of the end of the year to which the reports relate.’ — Reporting on irregularities and infringements affecting the ... factors linked to the nature of their operation (such as the quantity of the products concerned and the risk of exchanging organic with conventional products) in order to decide on additional control...
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Báo cáo khoa học nông nghiệp " Using FFS to enhance farmers'''' knowledge and skills in citrus production management in the process of implementing GAP in the South of Vietnam " docx
Ngày tải lên :
21/06/2014, 05:20
... (16.7%) making a total of 37.2% Farmers produced 26.5% of their planting materials by themselves and 14.9% they bought from their neighbours making a total of 41.4% The remaining 21.4% of respondents ... not know the origin of their planting material In both regions the use of mineral fertilisers was very high, with 95% of farmers reporting their use in the MD and 88% in the CC Use of organic ... petrol used in production, cost of hired labour, cost of packaging and transportation to the market In calculating net profit, farmers did not include costs of their own and their family labour inputs,...
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