Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Breeding water

Use Fuel for trucks, ships, and other automotive equipment, drilling muds, mosquito control (coating on breeding waters). [Pg.414]

Roller-compacted concrete is developed and extensively applied to construct concrete dams in Japan. In order to control the consistency of fresh concrete, the VC test is carried out. The test is illustrated in Fig. 10.1. Fresh concrete after mixed is placed in the mold on the vibratory table, which vibrates vertically with 1mm stroke and 10 gal acceleration. The surcharge weight is 20 kg. During the vibration, time is measured by second, which is named VC value , until breeding water is observed at the surface of the mold. [Pg.212]

Evidence of a trans-stadial transfer of Asaia from larvae to pupae and from pupae to adults of An. stephensi has also been obtained (Damiani et al. 2008) trans-stadial bacterial transfers in mosquitoes have cmitinued to be a subject of controversy (Lindh et al. 2008 MoU et al. 2001 Pumpuni et al. 1996 Jadin et al. 1%6). Moreover, experiments using molecular tools presented by Damiani et al. (2008) failed to detect Asaia symbionts in the larval breeding water, thus strengthening the belief that symbionts transfer from mie mosquito stage to the next. This type of symbiont transfer was supported by Chouaia and colleagues (2012), who detected Asaia in Asian malaria mosquito An. stephensi) adults whose LI larvae had been inoculated with a strain of Asaia. [Pg.131]

Chemical Composition. From the point of view of leathermaking, hides consist of four broad classes of proteins coUagen, elastin, albumen, and keratin (3). The fats are triglycerides and mixed esters. The hides as received in a taimery contain water and a curing agent. Salt-cured cattie hides contain 40—50% water and 10—20% ordinary salt, NaCl. Surface dirt is usuaUy about 2—5 wt %. Cattie hides have 5—15% fats depending on the breed and source. The balance of the hide is protein (1). [Pg.81]

Tritium is produced in heavy-water-moderated reactors and sometimes must be separated isotopicaHy from hydrogen and deuterium for disposal. Ultimately, the tritium could be used as fuel in thermonuclear reactors (see Fusionenergy). Nuclear fusion reactions that involve tritium occur at the lowest known temperatures for such reactions. One possible reaction using deuterium produces neutrons that can be used to react with a lithium blanket to breed more tritium. [Pg.198]

Chemical treatment of diseases is not common, because of legislative controls and costs caused by the difficulty of appHcation through the leaf canopy. Breeding of resistant varieties is the main weapon for disease control. Some diseases, chiefly ratoon stunting disease, are controlled by hot water treatment of cane (6,8). [Pg.16]

It is possible to breed plants that have more efficient systems for utilization of water, and agricultural technology can help existing crop plants by spraying impervious coatings on them. Extremely small amounts of long-chain, fatty alcohols reduce evaporation losses from quiet lakes or reservoirs to less than 5% of the normal surface evaporation. [Pg.238]

The only large-scale use of deuterium in industry is as a moderator, in the form of D2O, for nuclear reactors. Because of its favorable slowing-down properties and its small capture cross section for neutrons, deuterium moderation permits the use of uranium containing the natural abundance of uranium-235, thus avoiding an isotope enrichment step in the preparation of reactor fuel. Heavy water-moderated thermal neutron reactors fueled with uranium-233 and surrounded with a natural thorium blanket offer the prospect of successful fuel breeding, ie, production of greater amounts of (by neutron capture in thorium) than are consumed by nuclear fission in the operation of the reactor. The advantages of heavy water-moderated reactors are difficult to assess. [Pg.9]

In the case of an open water system, the problem is compounded due to the addition of micr(X)rganisms from the atmosphere. Water temperature control is critical to stop the water from becoming a breeding soup culture for the microorganisms. [Pg.160]

Water birds have not been shown to be directly affected by acidification. However, the prey of waterbirds may be of concern as these lower food-chain organisms may have elevated levels of toxic metals related to acidification of their habitat. Moreover, most water birds rely on some component of the aquatic food-chain for their high protein diet. Invertebrates that normally supply caJcium to egg-laying birds or their growing chicks are among the first to disappear as lakes acidify. As these food sources are reduced or eliminated due to acidification, bird habitat is reduced and reproductive rate of the birds is affected. The Common Loon is able to raise fewer chicks, or none at all, on acidic lakes where fish populations are reduced 37 and 5S). However, in some isolated cases, food supplies can be increased when competitive species are eliminated (e.g.. Common Goldeneye ducks can better exploit insects as food when competition from fish is eliminated). The collective influences of acidification are difficult to quantify on a specific area basis but for species that rely on a healthy aquatic ecosystem to breed, acidification remains a continuing threat in thousands of lakes across eastern North America 14). [Pg.56]

Blum, A. (1983). Breeding programs for improving crop resistance to water stress. In Crop Reactions to Water and Temperature Stresses in Humid, Temperate Climates, ed. C.D. Raper Jr and P.J. Kramer, pp. 263-76. Boulder, Colorado Westview Press. [Pg.211]

Reitz, L.P. (1974). Breeding for more efficient water-use - is it real or a mirage Agricultural Water Management, 14, 3-28. [Pg.215]

Hanson, A.D., Nelson, C.E., Pedersen, A.R. Everson, E.M. (1979). Capacity for proline accumulation during water stress in barley and its implications for breeding for drought resistance. Crop Science, 19, 489-93. [Pg.247]


See other pages where Breeding water is mentioned: [Pg.832]    [Pg.573]    [Pg.832]    [Pg.573]    [Pg.34]    [Pg.150]    [Pg.268]    [Pg.295]    [Pg.339]    [Pg.459]    [Pg.396]    [Pg.37]    [Pg.39]    [Pg.36]    [Pg.42]    [Pg.411]    [Pg.475]    [Pg.335]    [Pg.149]    [Pg.8]    [Pg.165]    [Pg.198]    [Pg.199]    [Pg.201]    [Pg.209]    [Pg.231]    [Pg.243]    [Pg.245]    [Pg.1044]    [Pg.84]    [Pg.91]    [Pg.176]    [Pg.153]    [Pg.290]    [Pg.50]    [Pg.125]    [Pg.158]    [Pg.278]   
See also in sourсe #XX -- [ Pg.204 ]




SEARCH



BREED

© 2024 chempedia.info