Water surfaces

Efficient water resource management is a critical mandate for governmental authorities, as it directly impacts the effective utilization of this invaluable natural resource. The expeditious and accurate extraction of water surfaces significantly impacts governmental decision-making.

9p vimitsuki 06-05-2025 1 1   Download

The increasing amount of incineration ash raised significant environmental concerns, particularly regarding waste disposal and pollution. To address these issues and promote sustainable development, this study explored the production of terrazzo tiles using a fine aggregate of waste incineration bottom ash (WIBA) and a ternary binder of cement, fly ash, and hydrated lime.

11p visarada 28-04-2025 1 1   Download

The aim of this is study to analyze and compare the amount of microplastics in the surface water and water column samples at Han River estuary (Da Nang) in the rainy season 2023. Sixteen water samples (eight water column samples and eight surface water samples) were collected and analyzed to determine the quantity, shape, color, size, and polymer forms of microplastics.

9p vimitsuki 30-03-2025 1 1   Download

Polyethyleneimine (PEI) is a novel polymer that contains multiple amine groups that are suitable for chelation with many heavy metal ions (HMI). Anchoring PEI onto the surface of a solid substrate has been widely adopted to develop adsorbent materials with the hope of combining the HMI chelating ability of PEI with the heterogeneity of the substrate.

7p viaburame 14-03-2025 4 1   Download

This research was undertaken to determine the concentrations of heavy metal ions in the surface water and sediment in water bodies that receive wastewater from the Dinh Tram and Pho Noi A industrial zones. The pollution status of the heavy metal ions and their potential ecological risks were evaluated by using the potential ecological risk index (RI) and risk assessment code (RAC).

11p vibecca 01-10-2024 8 2   Download

Embankment crest and the toe: that is limited to the scope of protection of the embankment on the shore. Roof slope: expressed as the ratio, for example 1:3. Roof more comfortable (less steep), the embankment as a protective effect, but the price will be more expensive (for large embankment surface). Structure and size of the overlay: Overlay roof design must be capable of against the effects of currents, waves, etc. Conventional coatings include removable components assembled together. Gap between them so that water inside to escape, to avoid the effects of water pressure in the soil....

38p thachthaoxanh 23-08-2011 51 6   Download

Giếng khai thác .1. KHÁI NiỆM CHUNG QUẢN LÝ NƯỚC KHU VỰC ĐÔ THỊ • Nước Mặt (Surface water) • Chất lượng nước (Water quality) • Nước Ngầm (Ground water) ....

30p boy_them_yeu 04-07-2013 98 13   Download

There are four major categories of catastrophic failure which exists in the boiler itself. 1. Melt down. This is a result of the heating surface metal reaching its melting point. It is a result of the boiler operating on very low water conditions. This by itself will not cause an explosion but will do major damage to the boiler and create a dangerous situation which could lead to an explosion.

24p nguyenhaitrieu87 17-09-2013 56 6   Download

Properties of materials, classes of materials used in medicine,... As the main contents of the lectures "Biomaterials". Invite you to consult for additional documents for the academic needs and research.

21p thangdambme 23-10-2015 49 3   Download

The research goals of the thesis: Preparation and characterization of activated carbon products denaturated by surface oxidation technics. Determination of cation exchange capacity of the materials. Investigation of Mn and Fe linking on surface of prepared materials to form a new adsorption material for effective removing hazard anions in water environment.

26p extraenglish 24-05-2021 32 2   Download

The technique of drip irrigation is a solution of water saving for crops in the scarce region. Water is supplied on the soil surface directly, continuously and regularly by drippers and then it infiltrates into the cultivated soil layer to ensure that plants will grow and develop well.

14p lucastanguyen 01-06-2020 22 3   Download

In this study, in-vitro experiments were performed using a total of 24 porcine motion segments. The harvested specimens were assigned to prolong and 2 different cyclic loadings. Both disc deformations and water contents were measured to investigate how the mode and rate of loading affect the response of intervertebral disc.

8p tohitohi 19-05-2020 11 1   Download

Objectives of research: Research on ammonia removal in groundwater in Hanoi with the concentration of less than 25mg/L (20mgN/L) by simultaneous Nitrification and Denitrification process in the equipment using MBBR with porous carriers (DHY) of a high surface area of about 6,000-8,000 m2 /m3 , high porosity and light weight, easily moving in water without addition of substrates.

26p xacxuoc4321 09-07-2019 30 6   Download

Vietnam-Netherlands Mekong Delta Masterplan project: Me Kong delta water resources assessment studies has many contents: description of the mekong delta of Viet Nam, hydrology and surface water resources, water quality, hydrogelogy and groundwater recources, water demand and water balance, issues to be solved.

68p thanhtrinhqc 04-05-2014 59 6   Download

Vibrio choleraehemolysin (HlyA), a water-soluble protein with a native monomeric relative molecular mass of 65 000, forms transmembrane pentameric channels in target bio-membranes.TheHlyAbinds to lipid vesicles nonspecifically and without saturation; however, self-assembly is triggered specifically by cholesterol.Here we show that the HlyA partitioned quantitatively to amphiphilic media irrespective of their compositions, indicating that the toxin had an amphiphilic surface.

8p research12 23-04-2013 60 4   Download

Glycoconjugates are distributed on the cell surfaces of some small-sized treponemes and have been reported to be com-pletely different from lipopolysaccharides. We separated a glycoconjugate fraction fromTreponema mediumATCC 700293, a medium-sized oral spirochete, to assess its immu-nobiological activities and elucidate the chemical structure of its polysaccharide part using phenol/water extraction, hydrophobic chromatography, and gel filtration.

9p fptmusic 16-04-2013 46 2   Download

The primary structures of N-terminal 19-mer peptides, released by limited trypsin treatment of coat protein (CP) subunits in intact virions of three potato virus X (PVX) isolates, were analyzed. Twowild-type PVXstrains,Russian (Ru) andBritish (UK3),wereusedandalso theSTmutantof UK3 inwhich all 12 serine and threonine residues in the CP N-terminal segment were replaced by glycine or alanine.

10p awards 05-04-2013 48 3   Download

The earth’s surface is two-thirds water, yet most of this is undrinkable or unusable because it is either seawater or ice. Of the 1% that is available as fresh water, most is used for farming or industry. Fresh water pollution is the major problem because many rivers and streams are being polluted with pesticides, industrial waste, and sewage. In poor and developing countries, the addition of sewage to the sources of water leads to diseases, and even death. A United Nations’ report estimates that more than 78% of people drink from polluted water supplies.

7p rrtrungrr11 27-03-2013 375 23   Download

AP1 (GEQGALAQFGEWL) was shown by theoretical analysis to be an anionic oblique-orientateda-helix former. The peptide exhibited a mono-layer surface area of 1.42 nm 2 , implying possession of a-helical structure at an air⁄water interface, and Fourier transform infrared spectroscopy (FTIR) showed the peptide to be a-helical (100%) in the presence of vesi-cle mimics of Escherichia colimembranes.

12p inspiron33 25-03-2013 44 3   Download

The protonation state of residues around the Qo binding site of the cyto-chrome bc1 complex from Paracoccus denitrificansand their interaction with bound quinone(s) was studied by a combined electrochemical and FTIR difference spectroscopic approach. Site-directed mutations of two groups of conserved residues were investigated: (a) acidic side chains located close to the surface and thought to participate in a water chain leading up to the heme bLedge, and (b) residues located in the vicinity of this site. ...

13p inspiron33 23-03-2013 47 5   Download