Combinations of these structures are also common.

Combinations of the above techniques produce a " hybrid " or " hyphenated " technique .< ref name =" pmid9008869 "> Several examples are in popular use today and new hybrid techniques are under development.

Combinations can refer to the combination of n things taken k at a time without or with repetitions.

Combinations of approaches two and four are often used in a layered architecture with thin layers of two and thick layers of four.

Combinations of antiretroviral drugs used as AIDS therapy are frequently referred to " drug cocktails " or " AIDS cocktails.

# Volume 4, Fascicle 3: Generating All Combinations and Partitions, 2005.

* Combinations of these, in some analyses, in a single consonsant: linguo-pulmonic and linguo-glottalic ( ejective ) consonants, which are clicks released into either a pulmonic or ejective stop / fricative.

Combinations of different alleles thus go on to generate different traits through the information flow charted above.

* Combinations: A refusal at any of the jumps in combination results in the horse having to repeat the entire set of obstacles, not just the element refused.

Combinations are defined as two or more jumps in which the take-off edge of the second ( or third ) jump is the same as the landing edge of the first jump.

Combinations with salchows or flips as the second jump may also be achieved by doing a half loop as a connecting jump, because its direct landing edge is a backward inside edge.

In 1811, he published an article with the title Essai d ' une manière de déterminer les masses relatives des molécules élémentaires des corps, et les proportions selon lesquelles elles entrent dans ces combinaisons (" Essay on Determining the Relative Masses of the Elementary Molecules of Bodies and the Proportions by Which They Enter These Combinations "), which contains Avogadro's hypothesis.

Combinations of the two have also been studied.

* Isaac Asimov's short story " Sixty Million Trillion Combinations " featured a mathematician who suspected that his work on Goldbach's conjecture had been stolen.

Combinations of these different sets of rhythms and drum sounds created popular rhythmic patterns of the day, e. g. waltzes, fox trots etc.

The theme of " Infinite Diversity in Infinite Combinations " is symbolized by the Vulcans in a Kol-Ut-Shan, represented as a pendant of yellow and white gold with a circle and triangle resting upon each other, and adorned with a white jewel in the center.

In an issue of The Humanist, Majel Barrett claimed that the philosophy of " Infinite Diversity in Infinite Combinations " was based on the teachings of Rabbi Maimonides.

Combinations of solvents that do not form an azeotrope when mixed in any proportion are said to be zeotropic.

Combinations of agribusiness with day spas, wedding facilities, or bed and breakfast accommodations is not unusual.

Combinations such as hazel and poplar also work well.

Combinations such as brindle merle or liver merle are not accepted in the breed standard.

Combinations of antiretrovirals create multiple obstacles to HIV replication to keep the number of offspring low and reduce the possibility of a superior mutation.

Owing to the complete absence of mountain building and glaciation since the Permian ( in many areas since the Cambrian ) ages, the outback is extremely rich in iron, aluminium, manganese and uranium ores, and also contains major deposits of gold, nickel, iron, lead and zinc ores.

Beryllium increases hardness and resistance to corrosion when alloyed to aluminium, cobalt, copper ( notably beryllium copper ), iron and nickel.

chemicals and plastics, machine tools, fabricated metal, electronics, pig iron and rolled steel products, aluminium, paper, wood products, construction materials, textiles, shipbuilding, petroleum and petroleum refining, food and beverages ; tourism

Familiar examples of elements include carbon, oxygen ( non-metals ), silicon, arsenic ( metalloids ), aluminium, iron, copper, gold, mercury, and lead ( metals ).

Less commonly, addition of manganese, aluminium, iron, indium and other elements can produce more unusual colors of gold for various applications.

These substances, major constituents of bauxite, are known as laterites and are formed by leeching from rocks of most of the ions other than aluminium and iron and subsequent hydrolysis of the remaining aluminium and iron.

Pure iron is soft ( softer than aluminium ), but is unobtainable by smelting.

Lithium's coefficient of thermal expansion is twice that of aluminium and almost four times that of iron.

Magnesium may be used as an ignition source for thermite, an otherwise difficult to ignite mixture of aluminium and iron oxide powder.

The two most commonly used structural metals, iron and aluminium, are also the most abundant metals in the Earth's crust.

Other common elements in silicate minerals correspond to other common elements in the Earth's crust, such aluminium, mangesium, iron, calcium, sodium, and potassium.

Epidotes are built around the structure < sup > 10 -</ sup > structure ; for example, the mineral species epidote has calcium, aluminium, and ferric iron to charge balance: Ca < sub > 2 </ sub > Al < sub > 2 </ sub >( Fe < sup > 3 +</ sup >, Al )( SiO < sub > 4 </ sub >)( Si < sub > 2 </ sub > O < sub > 7 </ sub >) O ( OH ).

Common engineering metals include aluminium, chromium, copper, iron, magnesium, nickel, titanium and zinc.

As with other metals, like aluminium, a tightly adhering oxide coating, a passivation layer, protects the bulk iron from further oxidation.

Common naturally occurring sulfur compounds include the sulfide minerals, such as pyrite ( iron sulfide ), cinnabar ( mercury sulfide ), galena ( lead sulfide ), sphalerite ( zinc sulfide ) and stibnite ( antimony sulfide ); and the sulfates, such as gypsum ( calcium sulfate ), alunite ( potassium aluminium sulfate ), and barite ( barium sulfate ).

This equation shows that 1 mole of aluminium oxide and 2 moles of iron will be produced with 1 mole of and 2 moles of aluminium.

A and B can be divalent, trivalent, or quadrivalent cations, including magnesium, zinc, iron, manganese, aluminium, chromium, titanium, and silicon.

Titanium can be alloyed with iron, aluminium, vanadium, molybdenum, among other elements, to produce strong lightweight alloys for aerospace ( jet engines, missiles, and spacecraft ), military, industrial process ( chemicals and petro-chemicals, desalination plants, pulp, and paper ), automotive, agri-food, medical prostheses, orthopedic implants, dental and endodontic instruments and files, dental implants, sporting goods, jewelry, mobile phones, and other applications.

Trace impurities of iron and aluminium are typically present.