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For other French keyboard layouts, see AZERTY. A simplified Canadian French keyboard layout. A fully standard keyboard has significantly more symbols. [27]

These combinations are intended to be mnemonic and designed to be easy to remember: the circumflex accent (e.g. â) is similar to the free-standing circumflex (caret) ( Alternating hands while typing is a desirable trait in a keyboard design. While one hand types a letter, the other hand can prepare to type the next letter, making the process faster and more efficient. In the QWERTY layout many more words can be spelled using only the left hand than the right hand. In fact, thousands of English words can be spelled using only the left hand, while only a couple of hundred words can be typed using only the right hand [10] (the three most frequent letters in the English language, E T A, are all typed with the left hand). In addition, more typing strokes are done with the left hand in the QWERTY layout. This is helpful for left- handed people but disadvantageous for right-handed people.Sadofev, S. et al. Growth of high-quality ZnMgO epilayers and ZnO/ZnMgO quantum well structures by radical-source molecular-beam epitaxy on sapphire. Appl. Phys. Lett. 87, 091903 (2005). The following sections give general descriptions of QWERTY keyboard variants along with details specific to certain operating systems. The emphasis is on Microsoft Windows. Multilingual keyboard layouts, unlike the default layouts supplied for one language and market, try to make it possible for the user to type in any of several languages using the same number of keys. Mostly this is done by adding a further virtual layer in addition to the ⇧ Shift-key by means of AltGr (or 'right Alt' reused as such), which contains a further repertoire of symbols and diacritics used by the desired languages.

Olthof, S. et al. Ultralow doping in organic semiconductors: evidence of trap filling. Phys. Rev. Lett. 109, 176601 (2012). Finally , instead of being the normal output of their keys, are produced by shifting the same keys. Next, we demonstrate the consequences of the energy level optimization for the balance of energy transfer versus interfacial charge separation at the hybrid interface ( Fig. 1). The inorganic part for this study consists of a ZnO/Zn 0.9Mg 0.1O quantum well (QW) structure grown by molecular-beam epitaxy 34. The role of the QW is to collect the electron-hole pairs injected into the inorganic component. The confinement-induced shift of the exciton energy in the 3.5-nm-wide ZnO QW is only in the 10 meV range and thus of no relevance in the present context. A thin (2 nm) Zn 0.9Mg 0.1O top barrier assures that electron-hole pairs in the QW are close enough to the L4P-sp3 organic layer for subsequent energy transfer, but avoids direct electronic coupling with the molecular states. The selected Mg content of 10% shifts the CBM (VBM) by 0.16 eV (0.06 eV) to higher (lower) energies as compared with ZnO (refs 35, 36). This gap-widening of the top barrier is very small compared with the much larger inorganic/organic type-II level offset, and charge separation leading to luminescence quenching is also expected for the pristine Zn 0.9Mg 0.1O/L4P-sp3 interface. When [RuCp*mes] + is inserted, the QW and the L4P-sp3 energy levels are essentially the same as in Fig. 4d, that is, well aligned, thus we also expect efficient energy transfer from the QW structure and subsequent light emission from L4P-sp3.

Main, K. et al. Energy transfer induced enhancement of localized exciton emission in ZnO nanoparticle–anthracene hybrid films. Phys. Stat. Sol. RRL 7, 1089–1092 (2013). Zhao, S. et al. Electroluminescence of ZnO nanorods/MEH-PPV heterostructure devices. Org. Electron. 11, 789–793 (2010). Also, on MS Windows, the tilde character "~" ( ⇧ Shift+ `) acts as a dead key to type Polish letters (with diacritical marks) thus, to obtain an "Ł", one may press ⇧ Shift+ ` L. The tilde character is obtained with ⇧ Shift+ ` Space. QWERTY was designed for English, a language with accents (' diacritics') appearing only in a few words of foreign origin. The standard US keyboard has no provision for these at all; the need was later met by the so-called " US-International" keyboard mapping, which uses " dead keys" to type accents without having to add more physical keys. (The same principle is used in the standard US keyboard layout for macOS, but in a different way). Most European (including UK) keyboards for PCs have an AltGr key ('Alternative Graphics' key, [a] replaces the right Alt key) that enables easy access to the most common diacritics used in the territory where sold. For example, default keyboard mapping for the UK/Ireland keyboard has the diacritics used in Irish but these are rarely printed on the keys; but to type the accents used in Welsh and Scots Gaelic requires the use of a " UK Extended" keyboard mapping and the dead key or compose key method. This arrangement applies to Windows, ChromeOS and Linux; macOS computers have different techniques. The US International and UK Extended mappings provide many of the diacritics needed for students of other European languages.

Minor changes to the arrangement are made for other languages. There are a large number of different keyboard layouts used for different languages written in Latin script. They can be divided into three main families according to where the Q, A, Z, M, and Y keys are placed on the keyboard. These are usually named after the first six letters, for example this QWERTY layout and the AZERTY layout.

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Michael Ashkenazi; Princess Mawuena Amuzu; Jan Grebe; Christof Kögler; Marc Kösling (February 2013). MANPADS - A Terrorist Threat to Civilian Aviation? (PDF) (Report). BICC brief. Vol.47. Bonn International Center for Conversion. p.159. ISSN 0947-7322 . Retrieved 8 September 2019.