Isotopic and chemical composition of water and steam discharges from volcanic- magmatic-hydrothermal systems of the Guanacaste Geother- mal Province, Costa Rica. Appl. Geochem. 7, 309-332.Giggenbach, W.F., and Corales, R., 1992, The isotopic and chemical com- position of water and steam ...
The concentrations of chemical constituents of ground waters in the landslide area seem to have increased slightly since 1966. The positive relationships are observed between the concentrations of Ca2+, Mg2+, HCO3- and SO42- in the ground waters. The chemical composition of ground water in ...
Volkmar Zielasek & Marcus Bäumer In chemical vapor deposition experiments with pulsed spray evaporation (PSE-CVD) of liquid solutions of Ni and Co acetylacetonate in ethanol as precursors, the influence of water in the feedstock on the composition and growth kinetics of deposited Ni and Co...
The detailed chemical lake water composition is a reflection of mineral precipitation, fractionation of trace elements in the precipitated phases (such as the rare earth elements and metals in sulfides) and element vapor phase transport by the volcanic gases. Variations in lake composition result from...
Pyrolysis of waste polypropylene plastics for energy recovery: influence of heating rate and vacuum conditions on composition of fuel product. Fuel Processing Technology, 2020, 209: 106522 Article CAS Google Scholar Zhao D, Wang X, Miller J B, Huber G W. The chemistry and kinetics of ...
This invention relates to an exothermic chemical composition which, when moistened with water, or aqueous liquid, spontaneously evolves a controllable quantity of heat and may be used in pads or envelopes of suitable construction for various purposes, such as thrrapeutic heating pads, hair-waving.....
Chemical vapor deposition (CVD) process for coating transparent organic substrates with a hard layer by:substrate preparation, deposition of a C, O, and Si containing adhering layer by a CVD process using a C-containing precursor gas from a silicoorganic compound and oxygen, and deposition of a...
Novel mathematical models for flavour release during drinking are described, based on the physiology of breathing and swallowing. Surprisingly, we conclude... Valéry,Normand,Shane,... - 《Chemical Senses》 被引量: 45发表: 2004年 Immediate effects of breath holding maneuvers onto composition of exh...
Table 1 The chemical composition of biomass from the aquatic environment Full size table Fig. 1 Microscopic image of Zostera marina Full size image Rigid PUR foams were obtained using 50G50P_150 biopolyol and Rokopol®RF551 petrochemical polyol (polyoxyalkylene sorbitol) from PCC Group. The selec...
groundwater, indicating colder climate during infiltration, and radiocarbon dating applying chemical correction with bicarbonate concentration. Only the southern part of mineral water aquifer exhibited a constant isotopic composition at that time while the fresh groundwater in its northern part was dated ...