h ion in water
Thực vật cải tạo môi trường nước (Phytoremediation in water)
Ngày tải lên :
23/04/2013, 13:17
... sinh h c và độc tính của các sản phẩm phân
h y chưa được xác định.
Chậm h n phương pháp truyền thống chỉ thích h p với các
chất ô nhiễm ưu nước
Chất ô nhiễm có khả năng đi vào chuỗi thực phẩm ...
Phần II
Thực vật cải tạo
môi trường nước
Nhược điểm
Sinh khối giới h n
Chỉ giới h n cho tầng đất nông, nước chảy và nước ngầm
Tích lũy nhiều chất độc h i ô nhiễm cho cây
Khả năng h p thụ sinh ... sinh thực vật tiêu biểu
Loại Tên thông thường Tên khoa h c
Thuỷ sinh thực vật
sống chìm
Hydrilla Hydrilla verticillata
Water milfoil Myriophyllum
spicatum
Blyxa Blyxa aubertii
Thuỷ sinh...
- 29
- 1K
- 3
Long-term trends in water quality in an under-populated watershed and influence of precipitation
Ngày tải lên :
05/09/2013, 10:15
... weekly intervals. For this investigation, the watershed of the
Hii River was chosen as the study site since it is the largest river flowing into Lake
Shinji and the population in the watershed had ... at
point H2 . From these results, it was concluded that the T–N (at points H1 and H2 ), T–P
(at point H2 ), and COD (at point H2 ) concentrations exhibited increasing trends, even
though the precipitation ... for point H1 ;
0.0232 for point H2 ), COD (0.0165 for point H1 ; 0.0184 for point H2 ), and SS (0.0249
for point H1 ; 0.0295 for point H2 ) were higher than those of T–N (0.00978 for point
H1 ; 0.0112...
- 14
- 522
- 0
Spatial Variation of Metal Concentrations in Watercourses of an Urban River Basin in Southeastern Brazil
Ngày tải lên :
05/09/2013, 10:15
... were then plotted in the basin map according
to incremental areas of influence of the monitoring stations.
Delineation of the areas of influence of monitoring stations
Delineation of the area ... the largest river basin entirely contained
within Brazilian territory. The area of the Velhas River basin is 29.173 km², and the
length of the main river, which runs in a south-north direction, ... guidelines (WHO, 2004) for each metal.
Table 2 – Kaplan-Meier UPL95 for metal concentration (mg/L) in watercourses of the
Velhas river basin including the World Health Organization drinking water...
- 14
- 520
- 1
Evaluation of sterilization possibility in water environment of activated nano mno2 coated on calcined laterite
Ngày tải lên :
10/02/2014, 15:24
... continents. However,
97% of the Earth's water is salty ocean water, which is unusable for most human
activities. Much of the remaining 3% of the total global water resource, which is
fresh -water, ... to 21. This happens as the amount of BRM in the second sample is
higher than that of the first one, which leads to more chances for bacteria to
contacting with BRM. Figure 14 shows the optimal ... contributed to the dramatically rising demand of pure water
usage for both household and industrial purposes. The high population density
and industrialization speed have triggered the hydrosphere to...
- 25
- 413
- 0
Tài liệu Freshwater ecosystem adaptation to climate change in water resources management and biodiversity conservation doc
Ngày tải lên :
16/02/2014, 10:20
... southeast. The orographic in uence of the high
mountain ranges introduces a large spatial variability in the
mean annual precipitation (MAP). In the high mountainous
regions in the southwest, ... their institutional capacity.
As identified in the Water Anchor report, strong institutions
operating within the right institutional framework
constitute the first step toward adapting to changes ... even in
the absence of changes in the mean annual precipitation
(IPCC, 2007; IPCC, 2008). Because changes in water timing
result in changes in water quantity and quality, shifts in the
timing...
- 69
- 415
- 0
Báo cáo khoa học: Selectivity of pyruvate kinase for Na+ and K+ in water/dimethylsulfoxide mixtures docx
Ngày tải lên :
08/03/2014, 02:20
... mixtures,
K
+
binds preferentially to the monovalent cation binding
site, whereas the smaller cation Na
+
binds to the divalent
cation (inhibitory) binding site with a higher affinity
(20-fold) than K
+
.
Materials ... show that dimethylsulfoxide induces structural
arrangements in which the whole enzyme population
acquires the high affinity active conformation.
Acknowledgements
The authors thank Rocı
´
oPatin
˜
o ... K
+
are higher in water/ dimethylsulfoxide
mixtures. The authors indicate that dimethylsulfoxide
favors a conformation of the enzyme that exhibits higher
apparent affinities for the monovalent cations....
- 9
- 460
- 0
FOR ORGANIC CHEMICALS IN WATER (latest version 04/01) pptx
Ngày tải lên :
14/03/2014, 20:20
... I8-I18
The default exposure conditions used in this spreadsheet assume exposure duration for
carcinogenic effects of chemicals in water through showering
Concentration (mg/L*L/1000 cm3): Conc = ... during adult showering assuming 5 gal/min of water flow rate
Total dose (mg/day) = Q * T_event * EV
Q: Shower flow rate (5-15 gal/min; here using 5 gal/min) Q = 1135500.0 (cm3/hr = gal/min * 3.785 ... absorption)
IR: Ingestion rate of drinking water
ABSIG: Absorption fraction in GI tract
Refer to Appendix A for equations to evaluate DA_event and DAD
Compare Dermal to Total dose exposed during...
- 23
- 439
- 0
314 CMR 9.00: 401 WATER QUALITY CERTIFICATION FOR DISCHARGE OF DREDGED OR FILL MATERIAL, DREDGING, AND DREDGED MATERIAL DISPOSAL IN WATERS OF THE UNITED STATES WITHIN THE COMMONWEALTH potx
Ngày tải lên :
15/03/2014, 16:20
... other barriers to prevent unauthorized
access to the facility
(e) The facility shall include a final cover system, which shall: minimize the percolation of
water through the final cover into the ... 10.05.
Ground Water. Water below the land surface in a saturated zone including perched ground
water.
High Water Mark. The present arithmetic mean of high water heights observed over a one-year
period using ... addition, shellfish growing areas shall include shellfish growing areas designated by the local
shellfish constable as suitable for shellfishing based on the density of shellfish, the size of the
area,...
- 34
- 983
- 0
The Role of Tradable Permits in Water Pollution Control doc
Ngày tải lên :
15/03/2014, 16:20
... stakeholders as the reason
why Lake Dillon has succeeded in maintaining high water quality. When point-non-point
source trading occurs, point source discharge permits include information on the ... the
basis of the estimated shortfall in protecting shared rivers and for specific actions such as
drainage that increase salinity in the shared rivers. The Murray Darling Basin Commission
maintains a ... success of the scheme during its pilot phase, the EPA established
the scheme through a new specific legislation. The Protection of the Environment Operations
(Hunter River Salinity Trading Scheme)...
- 38
- 503
- 0
Chemical of alumina reactions in aqueous solution and its application in water treatment
Ngày tải lên :
15/03/2014, 23:22
... moderate affinity anions in the pH
range where the fraction of surface protonation would
be otherwise low in the absence of enhancing anions. It
is worth mentioning that with increasing total anion
adsorption ... by the pH value. The increase in the
adsorption density of PVA at higher alkaline pH values
can be attributed to the hydroxylation of the alumina
surface, which enhances its hydrogen-bonding ... with increasing ionic strength at each pH
studied. At the lowest ionic strength of 1 mmol dm ,
y3
the adsorption of HS molecules decreases with increas-
ing pH. This phenomenon is expected since...
- 30
- 806
- 0
Báo cáo khoa học: Intermonomer cross-linking of F-actin alters the dynamics of its interaction with H-meromyosin in the weak-binding state ppt
Ngày tải lên :
16/03/2014, 13:20
... moderate change. Information
regarding the localization of the three cross-links
within the actin filaments in either the same or the
opposing strand has been published previously
[12,13,15]. Here, ... actin [8]. In a recent publication
the authors argue that in the weak binding state of
myosin to actin the heads interact only with one actin
protomer [23]. In our experiments HMM was used
instead ... state. These findings suggest that the dynamic change upon
weak binding by HMM⁄ ADP ⁄ AlF
4
which is inhibited by cross-linking
is essential to the proper mechanical behaviour of the filaments during
movement.
Abbreviations
ABP,...
- 10
- 311
- 0
Toxic Cyanobacteria in Water: A guide to their public health consequences, monitoring and management pot
Ngày tải lên :
23/03/2014, 00:20
... entrained in the water circulation within the epilimnion.
Thus, they can be photosynthetically active only when the circulation maintains them in
the euphotic zone. In eutrophic waters, phytoplankton ... light
intensities their growth rate is higher. Therefore, in waters with high turbidity they have
better chances of out-competing other species. This can explain why cyanobacteria
which can ... The zone in which
photosynthesis can occur is termed the euphotic zone (Z
eu
). By definition, the euphotic
zone extends from the surface to the depth at which 1 per cent of the surface light...
- 400
- 1.1K
- 0
- matrix metalloprotease2 is implicated in many biological processes and degrades extracellular and nonextracellular matrix molecules matrix metalloprotease2 maintains a latent state through a cysteine–zinc ion pairing which
- dissolved humus in soil waters
- blood water in fishery processing plants
- optimal water allocation in the mekong river basin
- durability of fiberglass composite sheet piles in water
- traditional water management in the lower mekong basin
- water animation in flash cs3
- water effect in flash cs3 tutorial
- exercise in english level h answers
Tìm thêm:
- hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam
- xác định các mục tiêu của chương trình
- xác định các nguyên tắc biên soạn
- khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn
- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
- khảo sát chương trình đào tạo gắn với các giáo trình cụ thể
- xác định thời lượng học về mặt lí thuyết và thực tế
- tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam
- điều tra đối với đối tượng giảng viên và đối tượng quản lí
- điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1
- khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam
- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
- xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct
- phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ
- mở máy động cơ lồng sóc
- mở máy động cơ rôto dây quấn
- các đặc tính của động cơ điện không đồng bộ
- hệ số công suất cosp fi p2
- đặc tuyến hiệu suất h fi p2