droughts and heavy rainfall
TECHNOLOGIES AND APPROACHES TO REDUCING THE FUEL CONSUMPTION OF MEDIUM- AND HEAVY-DUTY VEHICLES docx
Ngày tải lên :
22/03/2014, 10:20
... of commercial medium- and
heavy- duty highway vehicles and work trucks and then to
establish a rulemaking to implement a commercial medium-
and heavy- duty on-highway and work-truck fuel efficiency ... European, and Asian approaches to fuel economy and
regulations; Chapters 4 and 5 review and assess technologies
to reduce fuel consumption; Chapter 6 assesses direct and
indirect costs and benefits ... loading
3
If FE
f
= (FE
2
− FE
1
)/FE
1
and FC
f
= (FC
1
− FC
2
)/FC
2
where FE
1
and
FC
1
= FE and FC for vehicle baseline and FE
2
and FC
2
= FE and FC for
vehicles with advanced technology,...
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Báo cáo y học: "Trace Elements, Heavy Metals and Vitamin Levels in Patients with Coronary Artery Diseas"
Ngày tải lên :
25/10/2012, 10:51
... levels
of the vitamins (retinol, tocopherol and cholecalcifer-
ol), and trace elements and heavy metals (Zn, Cu, Fe,
Cd, Pb and Mn) in patients with CAD and the control
group are shown in Table ... (cholecalcif-
erol) and E (α-tocopherol) in patients with CAD.
MATERIALS AND METHODS
The study population included 30 patients hav-
ing angiographically demonstrated CAD and 20 pa-
tients having ...
was considered significant.
RESULTS AND DISCUSSION
Clinical characteristics and serum cholesterol
levels were not significantly different in patients with
and without CAD (Table 1). Comparisons...
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Tài liệu Báo cáo " Study on reuse of heavy metal rich sludge in ceramic pigment and construction material production " docx
Ngày tải lên :
12/02/2014, 17:20
... ~1.7-
2.0kg). The ratio of treated sludge and raw
material varied as 1:1; 1:3; 1:5; and 1:10. In the
latest, treated sludge was mixed with red
pigment and cement (white and black cement) a
the ratio ...
industrialization and modernization processes,
industrial waste has dramatically increased both
in amount and composition. Therefore adequate
behavior and proper investment for waste
treatment and utilization ... sufficiently high
concentration of heavy metal [1-3].
Currently, heavy metal rich sludge is
mainly treated by solidification then
disposed/land filled and incineration. In
addition, some...
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Tài liệu Báo cáo khoa học: Looking for the ancestry of the heavy-chain subunits of heteromeric amino acid transporters rBAT and 4F2hc within the GH13 a-amylase family ppt
Ngày tải lên :
18/02/2014, 13:20
... barrel between the
b3-strand and the a3-helix; (b) the catalytic machinery
consists of the b4-strand aspartate (nucleophile),
b5-strand glutamate (proton donor) and b7-strand
aspartate (transition-state ... between rBATs
and GH13 enzymes; (b) the higher similarity between
4F2hc and hcHAT-like proteins than between 4F2hc
and rBATs; and (c) the seeming absence of rBAT
ancestors in nematodes and arthropods ... of proteins and enzymes can
be found in Fig. 1. The segments covering the strands b2, b3, loop 3 (near the C-terminus of domain B connecting the b3-strand and helix
3), b4, b5, b7 and b8 represent...
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Tài liệu Báo cáo khoa học: The resident endoplasmic reticulum protein, BAP31, associates with c-actin and myosin B heavy chain Analysis by capillary liquid chromatography microelectrospray tandem MS ppt
Ngày tải lên :
20/02/2014, 23:20
... contain
both the BAP31–Flag and the endogenous BAP31 proteins,
migrating at apparent masses of 33 kDa and 28 kDa,
respectively, and two additional protein bands at apparent
masses of 42 and 190 kDa [9]. ... confirmed its
identity as the endogenous BAP31 protein while the 42 and
the 190 kDa bands were identified as nonmuscle c-actin and
myosin heavy chain nonmuscle type B, respectively.
Unambiguous identification ... associates
with c-actin and myosin B heavy chain
Analysis by capillary liquid chromatography microelectrospray tandem MS
Axel Ducret
1
, Mai Nguyen
2
, David G. Breckenridge
2
and Gordon C. Shore
2
1
Merck...
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Tài liệu Heavy-Duty Gas Turbine Operating and Maintenance Considerations docx
Ngày tải lên :
22/02/2014, 09:20
... against their original values
(opening and closing).
■ Casings, shells and frames/ diffusers
are inspected for cracks and erosion.
Heavy- Duty Gas Turbine Operating and Maintenance Considerations
GE ... standby, running and disassembly
inspections. The standby inspection is performed
during off-peak periods when the unit is not
operating and includes routine servicing of acces-
sory systems and ... recommended inspection and
Heavy- Duty Gas Turbine Operating and Maintenance Considerations
GE Power Systems
■
GER-3620J
■
(01/03) 30
Heavy- Duty Gas Turbine Operating and Maintenance Considerations
GE...
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- 1
Adsorption of heavy metal inons on soils and soil constituents
Ngày tải lên :
15/03/2014, 23:09
... of heavy metal ions on soils and soils constituents such as clay minerals, metal (hydr)oxides, and soil or-
ganic matter. Empirical and mechanistic model approaches for heavy metal adsorption and ... influenced by inorganic and or-
ganic ligands. Those ligands can be of biological origin such
as humic and fulvic acids [9–11]andof anthropogenicorigin
such as NTA, EDTA, polyphosphates, and others [12–15],
which ... the solid and the aque-
ous media in soils. The most important among these are the
hydrolysis of Cr(III) and Cr(VI), redox reactions of Cr(III)
and Cr(VI), and adsorption/desorption and precipitation...
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- 1
A meta analysis and risk assessment of heavy metal uptake in common garden vegestable
Ngày tải lên :
15/03/2014, 23:10
... increases in heavy metal uptake (Khan and Frankland 1983).
Soil pH significantly influences heavy metal concentrations in both soil and plant tissues.
The effect of soil pH on mobility of heavy metals ... immobilization of heavy metals, and there is very little leaching
through the soil profile (Khan and Frankland 1983). Immobilization can increase the Cd
concentration of the soil and ultimately ... fact, more Pb and Cd were removed from the soil by plants
than was leached through the profile (Khan and Frankland 1983). Several factors may influence
the content and distribution of heavy metals...
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Distribution and mobility of heavy metals
Ngày tải lên :
15/03/2014, 23:56
... contaminated
sites and with Dutch intervention values (Ministry of
Housing, 1994), formerly known as C values (Table 5).
Italian limits depend on land use, and are lower for
public and private green areas and ... chromium and nickel contents at site B are
above both limits in many samples, whereas lead and
zinc, and in some cases cadmium, are between ‘‘A’’
and ‘‘B’’ values.
All samples exceeding ‘‘A’’ and ... Planning and the Environment.
Intervention and Target Values—Soil Quality Standards. The
Netherlands.
Nowak, B., 1995. Sequential extraction of metal forms in the soil near
a roadway in southern Poland....
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EDTA enhanced heavy metal phytoextraction metal accumulation leaching and toxicity
Ngày tải lên :
16/03/2014, 00:07
... in soil solution and bioavail-
ability due to complexation with organic and inorganic
soil colloides, sorption on oxides and clays and pre-
cipitation as carbonates, hydroxides and phosphates
(Ruby ... 800–805.
Huang J W and Cunningham S D 1996 Lead phytoextraction: spe-
cies variation in lead uptake and translocation. New Phytol. 134,
75–84.
Leyval C, Turnau K and Haselwandter K 1997 Effects of heavy
metal ... presumption and to evaluate the influence of
EDTA treatment on mycorrhizal development.
The toxicity of EDTA on soil bacteria, actinomy-
cetes and fungi was studied with PLFA and DGFA
methods. PLFA and...
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Effect of metal spiking on different chemical pools and chemically extractable fractions of heavy metals
Ngày tải lên :
16/03/2014, 00:07
... Cu, and Cd, F
4
or reducible fraction of Ni, Cu, and Cd and residual fraction of Zn and Pb, but decreased F
2
fraction of Zn,
F
3
of Zn and Ni, F
4
fraction of Zn and F
5
fraction of Ni, Cu, and ... Kandpal et al./ Journal of Hazardous Materials 106B (2004) 133–137 135
Table 2
The contents of heavy metals in different chemical pools, DTPA And 1M CaCl
2
extracts in sewage sludge (SS) and heavy ... * and NS indicate significance at P = 0.01, 0.05 and non-significant difference between pairs, respectively.
3.3. Effect of metal spiking and incubation on
chemical pools
Heavy metal spiking and...
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Heavy metal contamination in soils of urban highways (comparision between runoff and soil concentration
Ngày tải lên :
16/03/2014, 00:25
... mainly in the strongly
bound organic and residual phases. Hewitt and Candy (1990), examined levels of
Pb, Cd and Zn in soil and dust samples collected in and around the city of Cuenca,
Ecuador. ... dried, a duplicate
HEAVY METAL CONTAMINATION IN SOILS OF URBAN HIGHWAYS 297
of Zn and Cu exceeded surface quality discharge standards for all rainfall events
and that Pb had two and Cd had three ... that included other heavy metals like zinc, cad-
mium and copper with measurements of lead. Gibson and Farmer (1984) applied
a six-step sequential leaching procedure to soil and street dirt in...
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