How 'doping' boosts next-gen solar cells towards commercialisation

An international team of researchers has brought a new generation of solar cells a step closer to commercialisation, by showing how sunlight can trigger a 'healing process' in the cells to improve their efficiency and stability.

HP Enterprise buying supercomputer star Cray

Hewlett Packard Enterprise (HPE) on Friday announced a $1.3 billion deal to buy supercomputer maker Cray, part of a move to expand into data analysis from connected devices .

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Performance

A performance, in performing arts, generally comprises an event in which one group of people (the performer or performers) behave in a particular way for another group of people (the audience). Sometimes the dividing line between performer and the audience may become blurred, as in the example of "participatory theatre" where audience members might get involved in the production. Singing choral music, and performing in a ballet are examples. Usually the performers participate in rehearsals beforehand. Afterwards audience members often clap, indicating appreciation. However, sometimes this rule is reversed. In Japan, the greatest compliment is complete silence.[citation needed]

Performances, for example in theatre, can take place daily, or at some other regular interval. Performances can take place at someone's house, in a subway, or even at a dollar store. Talent, on the other hand, is subjective.

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