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  2. Acheson process - Wikipedia

    en.wikipedia.org/wiki/Acheson_process

    To finish the items, the process is run for approximately 20 hours at 200 V with a starting current of 300 A (60 kW) for a furnace approximately 9 meters long by 35 cm in width and 45 cm in depth, and the resistance drops as the carbon heats due to a negative temperature coefficient, causing the current to increase. [2] Cool down takes weeks.

  3. Graphitization - Wikipedia

    en.wikipedia.org/wiki/Graphitization

    Graphitization generally occurs at high temperatures (up to 3,000 °C (5,430 °F)), and can be accelerated by catalysts such as iron or nickel. [ 2 ] When carbonaceous material is exposed to high temperatures for an extended period of time, the carbon atoms begin to rearrange and form layered crystal planes.

  4. Science and technology in Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/Science_and_technology_in...

    The apex body in Sri Lanka for government research funding is the National Science Foundation of Sri Lanka. [2] The Accelerating Higher Education Expansion and Development (AHEAD), a joint program between the Sri Lankan government and the World Bank, provides research grants to Sri Lanka's higher education institutes.

  5. Tank cascade system - Wikipedia

    en.wikipedia.org/wiki/Tank_cascade_system

    The tank cascade system (Sinhala: එල්ලංගාව, romanized: ellaṅgāva) is an ancient irrigation system spanning the island of Sri Lanka. It is a network of thousands of small irrigation tanks ( Sinhala : වැව , romanized: wewa ) draining to large reservoirs that store rainwater and surface runoff for later use.

  6. List of companies listed on the Colombo Stock Exchange

    en.wikipedia.org/wiki/List_of_companies_listed...

    Company Name Symbol B P P L Holdings: CSE: BPPL.N0000: Bairaha Farms: CSE: BFL.N0000: Balangoda Plantations: CSE: BALA.N0000: Bansei Royal Resorts Hikkaduwa: CSE: BRR ...

  7. List of companies of Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_Sri_Lanka

    According to the International Monetary Fund, Sri Lanka's GDP in terms of purchasing power parity is second only to the Maldives in the South Asian region in terms of per capita income. As of 2010 [update] , the service sector makes up 60% of GDP, the industrial sector 28%, and the agriculture sector 12%. [ 1 ]

  8. Shop Great Nordstrom Sales, Deals and Specials - AOL.com

    www.aol.com/shopping/stores/nordstrom

    Browse great deals that our Editors find daily from great stores like Nordstrom. These Nordstrom sales are often limited so visit often and save daily.

  9. Haycarb - Wikipedia

    en.wikipedia.org/wiki/Haycarb

    Haycarb PLC is a coconut shell-based activated carbon manufacturing company in Sri Lanka. [2] Haycarb was incorporated in 1973. The company controls 16% of the world's market share. [3] Haycarb operates manufacturing plants in Sri Lanka, Thailand and Indonesia, while marketing offices are located in the United States, the United Kingdom and ...

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