mixed oxides
91Law of multiple proportions — In chemistry, the law of multiple proportions is one of the basic laws and a major tool of chemical measurement (stoichiometry). It states that when elements combine they do so in a ratio of small whole numbers. For example, carbon and oxygen… …
92Yttrium barium copper oxide — IUPAC name barium copper yttrium oxide …
93Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …
94soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
95advanced ceramics — ▪ ceramics Introduction substances and processes used in the development and manufacture of ceramic materials that exhibit special properties. As is pointed out in the article ceramic composition and properties, ceramics are… …
96Combustion — This article is about the process of burning. For combustion without external ignition, see spontaneous combustion. For the engine used in mobile propulsion, see internal combustion engine. For the visible part of a fire, see flame. Burning… …
97environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
98Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… …
99climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
100Freshwater environmental quality parameters — are the natural and man made chemical, biological and microbiological characteristics of rivers, lakes and ground waters, the ways they are measured and the ways that they change. The values or concentrations attributed to such parameters can be… …
