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... regard only for the interest of stockholders, they are not performing their proper functions; and that they will not serve their real purpose until they become in fact what they are in theory, highways ... mountains of Northern Palestine and the Mediterranean Sea From their situation they learned to rely upon the sea as their principal highway [Pg 20]They transported to the islands of the Mediterranean ... while the Phœnicians for their commercial intercourse with other nations relied chiefly upon the sea, the great highway of nature, they neglected by no means roadbuilding at home They connected their...

Ngày tải lên: 17/02/2014, 02:20

... Exotic Species in the Mekong Basin and Policies for Their Control ix The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control x The Impacts of ... Exotic Species in the Mekong Basin and Policies for Their Control xi The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control xii The Impacts of ... Species in the Mekong Basin and Policies for Their Control xiii The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control xiv The Impacts...

Ngày tải lên: 14/03/2014, 08:48

... only to improve their own capacity to recover their costs but to strengthen themselves in their dealings with formal financial institutions None of them are really the creations of their members ... method from the first As in the straightforward sale of assets, such services require the user to have a stock of wealth in the form of an asset of some sort They allow the user to exploit their ownership ... compensating late winners for their long wait But the device has two other effects It shortens the length of the ROSCA cycle This is because by the time half the members have won their rickshaws, enough...

Ngày tải lên: 15/03/2014, 10:20

... Saturday, the editors of The Sporting News labeled the result “ruinous.” The baseball weekly then praised the executives of the Chicago White Sox for rescheduling their relief game for July to ... actually the best available players for their positions and offered the added bonus of a boost at the ticket window For example, in 1945 the Dodgers signed outfielder Floyd “Babe” Herman, a star for the ... from the front lines and participate in the “drab, hard work of supplying” their replacements before receiving any type of break in their military duties.16 Once they did gain some time for themselves,...

Ngày tải lên: 31/03/2014, 10:21

... error messages and alerts to the user so that the user can fix the problem – Use the Focus() method of the control to transfer the focus back to the field – Set the Cancel property of CancelEventArgs ... true This cancels the Validating event, leaving the focus in the control The CausesValidation Property • The default value of the CausesValidation property for a control is true for all controls ... When the user moves the mouse pointer over the icon, an error message pops up as a ToolTip The ErrorProvider Component Using the ErrorProvider Component and Other Validation Techniques The Validating...

Ngày tải lên: 13/05/2014, 11:39

Ngày tải lên: 12/06/2014, 17:13

... publish reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use Neither this book nor any ... return to the sea carried by the cycle of water In Figure 1.1 the ocean on the left supplies the rain to the land on the right, and the water carrying sediments drains back to the ocean In the original ... restless energies of the sun and heat of the earth, the biogeosphere circulates materials on which human life depends In the global cycle of the earth, the slow rise of the land is balanced by...

Ngày tải lên: 18/06/2014, 19:20

... HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL While lead has long been known as a toxin, the last 20 years has confirmed the poisonous effects of lead for the neurological ... elements and their impact on the environment — the field of ecotoxicology Some of the questions about heavy metals and environment are scientific issues about the way systems self-organize their cycles ... economy? For the future, what is the long-range scenario for use of metals? Will there be a climax accumulation of people and machines on the earth, followed by decreases as the fuel energy basis for...

Ngày tải lên: 18/06/2014, 19:20

... lead since the leaded gasoline maximum in 1980 They calculated lead removal response times (turnover times) as 17 years for northern hardwood forests and 77 years for subalpine spruce–fir forests ... of the swamp with enclosures 40 × 10 m The heavy metal solutions were mixed into partially treated sewage flow through one of the enclosures The other received only the sewage waters Most of the ... proportional to the concentration in the waters decreased as the bound quantity reaches the capacity limit in the sludge These limits were calibrated in batch experiments evaluating equilibrium thermal...

Ngày tải lên: 18/06/2014, 19:20

... flows for the same emergy flows, which means the transformity increases If the energy source is solar energy, then the solar transformity of the inflow to the first unit is 100 sej/100 J = sej/J; the ... concentrate the lead further to the refined state Then this amount of emergy can be subtracted from the emergy per gram of the refined state to get a value for the lesser state TRANSFORMITY, THE EMERGY ... coefficient) The more tightly they are bound, the less time they remain in river and seawaters (smaller residence time) The shorter the residence time the lower the concentrations in the seawaters The...

Ngày tải lên: 18/06/2014, 19:20

... wetland forests in Brown et al (1984: p 317) GPP for trees in other locations is a fraction of reference forest GPP based on the ratios of their LAI b GPP was calculated for Nymphaea by setting the ... Figure 5.4 the daytime respiration (darkly shaded) is made to increase during the day, based on the idea that the more sugar made by the plant the more respiration there is See Appendix A5A for more ... corrections for the diffusion (Figure 5.4) Points above the horizontal line are increases (positive), and points below the line are decreases (negative) The shaded area above the line is net photosynthesis,...

Ngày tải lên: 18/06/2014, 19:20

... apparatus used for measuring the binding of lead by humic substances bound by the humic substances in solution on the other side One side of the membrane had lead solution only, whereas the other side ... from the literature and confirmed with the study of lead fractions (Figure 6.5), much of the lead combines with humic substances To measure the binding to the humic substances in the waters of the ... 2000 4:34 PM 84 HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL LEAD IN VEGETATION Water lily (Nymphaea odorata) was the most popular species for the entire wetland, except site...

Ngày tải lên: 18/06/2014, 19:20

... to the large size of the seedlings and the hypothesis of nutrient limitation and water stress, I cut the seedlings to their original height before the next growing season They did regrow in the ... when the trees were killed The range of acidity and lead treatments in the microcosm was that of the present swamps many years after the initial toxicity Therefore, the question addressed in the ... or acid or their combinations was proven to have any effect greater than the general variation among the replications Therefore all the data were averaged in Figure 7.2 Because of the self-organizing...

Ngày tải lên: 18/06/2014, 19:20

... that the flow of organic matter from the plant storage (P) to the organic sediment storage (D) is in proportion to the amount of plants, the mathematical term for the flow is K7*P (where P is the ... HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL and the flows in and out on the average are labeled for each tank and pathway junction in Figure 8.2 Appendix A8 has the spreadsheet ... organics that fall into the sediments Addition to lead stored in the plants is proportional to the lead in the water and in the plant biomass and decreased by the lead in the organics that go to...

Ngày tải lên: 18/06/2014, 19:20

... HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL SITE DESCRIPTION AND HISTORY The Biala River is located 60 km west of Krakow City, Poland The distance between the river source ... about 11 km The wetland study site is located at the confluence of the Biala River and two discharge channels in the vicinity of Laski village (Figure 9.1) The wetland extends 3.5 km along the river ... erosion of the river bottom in the main stream of the wetland The consequence was a successive disappearance of the wetland progressing downstream from the outlet of Dabrowka Channel As the wetland...

Ngày tải lên: 18/06/2014, 19:20

... zinc are processed into metallic forms in the metallurgical mills There are two basic metallic forms of lead: raw and refined Raw lead is produced in Miasteczko Slaskie, ZGH Orzel Bialy, HM Glogow, ... IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL Poland This gasoline contained 0.15 g Pb per liter which released 715.4 tons of lead after combustion Data were not available on lead in other ... L1401-frame-C10 Page 116 Monday, April 10, 2000 9:59 AM 116 HEAVY METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL Table 10.1 Structure of Lead and Zinc Extraction in Poland (in thousand...

Ngày tải lên: 18/06/2014, 19:20

... obviating the need to treat the acid (Neil Oakes, personal communication) The value of the acid was therefore not considered further Using only the market value of wetland timber to represent the social ... The emergy value of the loss of wetland production over time represented the real ecological damage The transformity of wetland gross primary production for an undamaged forested wetland in the ... shows the reduction in empower per square meter due to the acidic discharge for 1991 In Table 11.4 these estimates are multiplied by the appropriate areas to convert them to total empower for the...

Ngày tải lên: 18/06/2014, 19:20

... emergy of the water, the nutrients, lead, and zinc transported together The waters were partially used by transpiring plants, and this emergy contributed to the treatment work The rest of the water ... economy The value of the contributed water (to the cost) is 4.08 E20 sej, so that when divided by the emergy/money ratio, we find the contribution in 25 years is 6.777 E7 emdollars The other main ... 12.4 summarizes the emergy flows for the two treatment methods The emergy required for installation of the wetland method is 4.151 E20 sej/25 years, while emergy to establish the conventional...

Ngày tải lên: 18/06/2014, 19:20

... METALS IN THE ENVIRONMENT: USING WETLANDS FOR THEIR REMOVAL The laws during this period need to recognize the work the environment can essentially for free The recycle of materials back into the environment ... but the former, also known as end-of -the- pipe regulation, seems to be the outcome In most cases the law does not describe how industrial processes must reduce their wasteful production, rather the ... Rather, the court ruled that if the EIS were performed and considered, it would be the decision of the agency as to the importance of the EIS This Supreme Court decision seems to undermine the...

Ngày tải lên: 18/06/2014, 19:20

... according to the amounts of energy that have been transformed in series For the biogeosphere the scale ranges from low values in the fast processes of the atmosphere to large values required for the slow ... position and the way the self-organization of earth cycles processes them in the geobiosphere These elements are scarce, with high transformity and physiological impact when concentrated To use these ... of lead, and the role of wetlands is the basis for recommending policies for management of lead using wetlands Extrapolating values from the study sites showed abundant capacity for existing...

Ngày tải lên: 18/06/2014, 19:20