China Media Group (CMG) is displaying its latest accomplishment in "all-media, ultra-high definition" broadcasting at the 31st Beijing International Radio, Film and Television Exhibition, which opened Wednesday in Beijing.
The broadcasting strategy aims to deliver content across multiple platforms with exceptional clarity and high definition.
"The production systems we are exhibiting include equipment for large screens with ultra-high definition and equipment for smaller devices for multiple new media terminals. This is our 'all-media, ultra-high-definition' strategy, which aligns within CMG's broader 5G+4K+8K+AI strategic framework," said Lin Fei, a senior engineer of the CMG technical department.
Through collaboration with domestic manufacturers, CMG has independently developed IP-based, ultra-high-definition production and broadcasting equipment, and has achieved technological breakthroughs across the production and broadcasting chain.
These innovative achievements were already successfully employed in producing international public signals for both the 2022 Beijing Winter Olympics and the 2024 Paris Olympics.
"The application of artificial intelligence runs through every stage of our program production. From recording to post-production, including reviewing and editing, AI is used extensively to improve quality and efficiency," said Jian Weiyi, another senior engineer of the CMG technical department.
Themed on "All Media, Ultra High Definition, Strong Intelligence," the exhibition spans 12 venues covering a total floor space of 50,000 square meters, presenting the latest advancements in technologies for radio, television and film.
Well-known companies and brands from 19 countries and regions including Japan, Germany, the United States, and China's Hong Kong and Taiwan regions participate in the exhibition.
The exhibition attracted 506 exhibitors of international and domestic mainstream equipment manufacturers. Nearly 80 percent of the technologies, products and applications are exhibited for the first time.
Among the exhibitors, there are 106 industry leaders, accounting for over 20 percent of the total, 203 international exhibitors, accounting for over 40 percent, and 47 first-time exhibitors, accounting for nearly 10 percent and setting a record high.
The exhibition runs through Saturday.
CMG displays latest accomplishment in all-media, UHD broadcasting
CMG displays latest accomplishment in all-media, UHD broadcasting
China's scientific expedition team on Thursday obtained critical ice cores during their investigation of the Qinghai-Xizang Plateau, which is known as Asia's "water tower".
The region encompasses "one glacier, two lakes and three rivers". It is home to Purog Kangri Glacier, the world's largest glacier in the mid to low-latitude regions, as well as Siling Lake and Namtso Lake, the largest and second-largest lakes in Xizang, respectively. It is also the birthplace of the Yangtze River, Nujiang River and Yarlung Zangbo River.
The climate in the region is complex and changeable, and its ecosystem is very fragile, and meanwhile it is a pivotal area for Xizang's economic and social development.
During their expedition, the team drilled for ice cores at different depths overnight on Thursday, aiming to capture climate records from different time scales.
Ice core drilling is typically conducted during the night and early morning when the ice temperature is sufficiently low.
Ice cores serve as vital records of global climate and environmental changes. The sediments and bubbles within these cores are clues to understanding the history of Earth's climate. By studying the bubbles captured in ice cores, scientists can analyze atmospheric composition, including carbon dioxide levels, over hundreds of thousands of years.
Yao Tandong, an academician at the Chinese Academy of Sciences (CAS) and leader of the expedition, and Lonnie Thompson, a renowned American glacier expert and foreign academician at CAS, conducted their scientific expedition on the glacier Thursday morning.
Through helicopter observations, thickness-measuring radar, satellite image comparison and other methods, the scientific expedition team has found that the surface area of the Purog Kangri Glacier has shrunk by 10 percent over the past 50 years.
The average altitude of Purog Kangri Glacier is 5,748 meters, with the highest point reaching 6,370 meters. Due to global warming, the glacier is melting rapidly.
"So does the melting of glacier surface -- the higher the altitudes, the less the ablation volume, while at lower altitudes, it accumulates and forms branch-like rivers on the ice surface. Currently, these branches extend up to altitudes of 6,000 meters," said Xu Baiqing, a research fellow of the Institute of Tibetan Plateau Research under the CAS.
Research indicates that the accelerated retreat of glaciers on the Qinghai-Xizang Plateau over the past 40 years reflects a broader trend, and the melting rate of the Purog Kangri Glacier is relatively slow compared to the overall situation of the plateau.
The temperature changes within the glacier also attributed to the great difficulty of drilling, said Xu.
"Due to climate warming, the temperature within the glacier has risen, which suggests that under the same backdrop of temperature variations, the ablation may show abrupt shift with accelerating growth," said Xu.
The expedition was launched on Aug 18, 2024 and is scheduled to continue until October.
Scientists obtain critical ice cores during expedition in Qinghai-Xizang Plateau
