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  2. Trina Solar - Wikipedia

    en.wikipedia.org/wiki/Trina_Solar

    In June 2020, Trina Solar listed on the STAR Market of Shanghai Stock Exchange. [2] A 2023 report by Sheffield Hallam University stated that Trina Solar had very high exposure to production in Xinjiang involving forced Uyghur labor. [3] In August 2023, the U.S. Department of Commerce ruled that Trina Solar circumvented tariffs on Chinese-made ...

  3. List of photovoltaics companies - Wikipedia

    en.wikipedia.org/wiki/List_of_photovoltaics...

    Monocrystalline solar cell This is a list of notable photovoltaics (PV) companies. Grid-connected solar photovoltaics (PV) is the fastest growing energy technology in the world, growing from a cumulative installed capacity of 7.7 GW in 2007, to 320 GW in 2016. In 2016, 93% of the global PV cell manufacturing capacity utilized crystalline silicon (cSi) technology, representing a commanding lead ...

  4. Solar-powered calculator - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_calculator

    Solar-powered calculators are hand-held electronic calculators powered by solar cells mounted on the device. [1] They were introduced at the end of the 1970s. [2]Amorphous silicon has been used as a photovoltaic solar cell material for devices which require very little power, such as pocket calculators, because their lower performance compared to conventional crystalline silicon solar cells is ...

  5. Vertex operator algebra - Wikipedia

    en.wikipedia.org/wiki/Vertex_operator_algebra

    A basic example of a noncommutative vertex algebra is the rank 1 free boson, also called the Heisenberg vertex operator algebra. It is "generated" by a single vector b, in the sense that by applying the coefficients of the field b(z) := Y(b,z) to the vector 1, we obtain a spanning set.

  6. Datasheet - Wikipedia

    en.wikipedia.org/wiki/Datasheet

    Front page of a floppy disk controller data sheet (1979) A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to ...

  7. Sharp EL-500W series - Wikipedia

    en.wikipedia.org/wiki/Sharp_EL-500W_series

    Sharp EL-500W series include a range of scientific calculators made by Sharp Corporation, capable of displaying 2 lines, with multi-line playback. It is the successor to the Sharp EL-500V series . Features

  8. Degree (graph theory) - Wikipedia

    en.wikipedia.org/wiki/Degree_(graph_theory)

    A vertex with degree 1 is called a leaf vertex or end vertex or a pendant vertex, and the edge incident with that vertex is called a pendant edge. In the graph on the right, {3,5} is a pendant edge. This terminology is common in the study of trees in graph theory and especially trees as data structures .

  9. Third-generation photovoltaic cell - Wikipedia

    en.wikipedia.org/wiki/Third-generation...

    A three-layer cell should be tuned to 1.83, 1.16 and 0.71 eV, with an efficiency of 48%. A theoretical "infinity-layer" cell would have a theoretical efficiency of 68.2% for diffuse light. [11] While the new solar technologies that have been discovered center around nanotechnology, there are several different material methods currently used.