Washington, OCT 23 (XINHUA/UNB)-- Chinese, Australian and U.S. scientists used the world's fastest supercomputer Summit to process simulated observations of the early universe ahead of the construction of the radio telescope to be built in Western Australia and South Africa.
Researchers from the International Center for Radio Astronomy Research (ICRAR) in Perth, Oak Ridge National Laboratory in the United States and Shanghai Astronomical Observatory in China processed 400 gigabytes of data a second as they tested data pipelines for the Square Kilometre Array (SKA) telescope, according to an ICRAR statement released on Tuesday.
"Completing this test successfully tells us we'll be able to deal with the data deluge of the SKA when it comes online in the next decade," said Andreas Wicenec, the director of Data Intensive Astronomy at ICRAR.
Wicenec said it was the first time radio astronomy data has been processed on this scale.
The SKA is one of the world's largest science projects, with the low frequency part of the telescope set to have more than 130,000 antennas in the project's initial phase, generating around 550 gigabytes of data every second.
"The fact that we need the world's biggest supercomputer to run this test successfully shows the SKA's needs exist at the very edge of what today's supercomputers are capable of delivering," said Wicenec.
Summit, located at the U.S. Department of Energy's Oak Ridge National Laboratory, is the world's most powerful scientific supercomputer, with a peak performance of 200,000 trillion calculations per second.
The test run used a cosmological simulation of the early universe at a time known as the Epoch of Reionization, when the first stars and galaxies formed and became visible.
They used the Adaptable IO System developed at the Oak Ridge National Laboratory to resolve a bottleneck caused by trying to process so much data at the same time, according to Oak Ridge lab.
An Tao with the Shanghai Astronomical Observatory said the data was first averaged down to a size 36 times smaller before being used to produce an image cube of a kind that can be analysed by astronomers.
"Finally, the image cube was sent to Perth, simulating the complete data flow from the telescope to the end-users," said An.
Construction of the SKA is expected to begin in 2021. The SKA project is supported by 13 national members, including Australia, Canada, China, France, Germany, India, Italy, the Netherlands, New Zealand, South Africa, Spain, Sweden and Britain.
Dhaka, Oct 22 (UNB)- Huawei, a global technology company, has brought two new smart accessories in the market for providing a premium audio experience. The two accessories - Huawei FreeLace and the Huawei Mini Speaker - will offer music enthusiasts a comfortable audio listening experience.
From now on, Huawei FreeLace is available at BDT 4,999 while Huawei Mini Speaker is at BDT 1,399 at more than 200 Huawei Brand Shops across the country.
Huawei FreeLace with the three colours - Graphite Black, Amber Sunrise and Emerald Green - can be used for up to 18 hours once it is charged. Due to the use of HiPair technology, it can be paired and charged after connecting to a particular device. It has also noise cancellation facilities.
And the Mini Speaker is quite slim and portable. This wireless accessory contains the high quality audio facility along with the high quality base. The water resistant accessory can be used for upto four hours after charging one time.
Apart from the new two smart accessories, Huawei Watch GT, FreeBuds, TalkBand B3 Lite, Power Bank, 360 Degree VR Camera, Headphone, Bluetooth Speaker and so many are also available in the market.
Washington, Oct 21 (Xinhua/UNB) -- The 70th International Astronautical Congress (IAC), a five-day conference devoted to discussing innovation and advances in the space industry, began in Washington D.C. on Monday.
The congress, which runs until Friday, has drawn more than 6,000 industry delegates from around the world to discuss the space industry growth, solar and deep space exploration, liquid water search on Mars, defense against asteroids and space transportation management.
Jean-Yves Le Gall, president of the International Astronautical Federation (IAF), put emphasis on collaboration in space exploration.
He said at the opening ceremony that no one can alone achieve what they want nowadays and he urged all players to work together, "not letting anything standing in the way."
This year's congress theme is "Space: The Power of the Past, The Promise of the Future."
The IAC is the world's largest annual gathering of space professionals and its parent organization is the Paris-based IAF.
The International Aeronautical Congress has been held every year since 1950. The five themes of IAC are Science and Exploration, Applications and Operations, Technology, Infrastructure, and Space and Society.
United Nations, Oct 21 (Xinhua/UNB) -- Mary Wareham, global coordinator of the Campaign to Stop Killer Robots, on Monday urged the international community to stop developing lethal autonomous weapons systems, or killer robots.
"We aspire to create a broad based movement that will create so much pressure that the governments launch negotiations on a new international treaty to prohibit weapons systems that would select and engage targets without meaningful human control. Such fully autonomous weapons are also called lethal autonomous weapons systems at the talks in Geneva," said Wareham.
"We believe that they (killer robots) cross the threshold of acceptability and therefore must be prohibited," she said at a press conference held at the UN headquarters in New York.
"Killer robots or lethal autonomous weapon systems are crossing a moral and ethical Rubicon and should not be allowed to exist and be used in combat or any other way," said Jody Williams, the founding coordinator of the International Campaign to Ban Landmines (ICBL) from early 1992 until February 1998.
"I think that they were hoping and really expecting the larger community would not find out about the research and development of killer robots," she said.
"If we allow autonomous weapons to deploy and select and engage with their own targets, we will see disproportionate false fatalities," said Liz O'Sullivan with the International Committee for Robot Arms Control (ICRAC).
Shanghai, Oct 21 (Xinhua/UNB) -- China will have over 600 million 5G subscribers by 2025, accounting for nearly 40 percent of the global total, Sihan Bo Chen, head of GSMA Greater China, told Xinhua on Monday.
The global 5G subscriber forecast has increased to 1.6 billion by 2025 from 1.4 billion, and much of this growth will come from China based on operators' rolled-out plans, she said, citing a forecast by GSMA, an international association in the mobile industry.
Up to 85 percent of the Chinese population will subscribe to mobile services by 2025, while 88 percent of those subscribers will have smartphones and 36 percent will use 5G services, said John Hoffman, CEO of GSMA Ltd.
"We welcome China's continued effort to promote openness to build a 'shared future' through collaboration and cooperation," he said.
As a co-organizer of the World Internet Conference held in east China's Zhejiang Province, GSMA released a white paper on artificial intelligence (AI) in network case studies together with China Mobile, China Telecom, China Unicom, Huawei and other companies.
"We hope the development of the mobile network in China will inspire the rest of the world and bring next-generation AI services to life," said Sihan Bo Chen.