the southwest police, say that from their inquir furtheri the southwest police, say that from their inquir further inquiries, the southwest police, say that from their inquirfurther inquiries, there carried out further inquiries, there is no evidence that any criminal committed south offence have been committed south wales police. that is an in port and point to stress. point to stress. yeah, a crucial oint. point to stress. yeah, a crucial point- we point to stress. yeah, a crucial point. we know point to stress. yeah, a crucial point. we know the point to stress. yeah, a crucial l point. we know the metropolitan please have in carrying out further inquiries after they met bbc representatives earlier this week. inquiries after they met bbc representativ key arlier this week. inquiries after they met bbc representativ key question week. inquiries after they met bbc representativ key question that k. inquiries after they met bbc representativ key question that they they had
the rocket was not crude. hello, iam hello, i am maryam moshiri. sport and for a full round up from the bbc sport centre, here s our reporter. he was hugh ferris. thank you very much indeed. erik ten hag has promised his manchester united side will not repeat their performance on the first leg of the europa league final, which saw them have a 2 0 lead with two own goals. it means the second shot they will start at 2-2. a the second shot they will start at 2 2. a player has been prevented playing by a groin injury. the forward as part of the squad that has travelled to spain, hoping to avoid making the same mistakes they became passive- avoid making the same mistakes it iey became passive. it avoid making the same mistakes time; became passive. it is not acceptable, we know that. and you see what happened when you are playing a game for only 60 minutes. you can t do it and when you do it
to russian escalation. do you think direct conflict to russian forces if they cross certain red lines? on that no fly zone, i don t agree with brent stephens. this has been not an air superiority problem. they have not flying aircraft over ukraine. they re afraid of losing them to the anti-aircraft missiles the ukrainians have. so what we have here is a missile defense problem. the missiles that are hitting the theatre, for example, are fired from russian or belarusian territory. i m not sure which. they need air defense help. i was glad to see that the slovakians, for example, are looking to send air defense systems to ukraine. that s what they need right now. those s-300s that iey ve bee asking for some time. thank you for waking up early on the west coast. sure, thank you. ukrainian civilians paying the ultimate price for putin s war. up next, you ll hear from
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December 18, 2020
CEA-Leti Papers at IEDM 2020 Highlight Progress in Overcoming Challenges to Making GaN Energy-Saving, Power-Electronics Devices
Gallium Nitride Seen as Highly Efficient Replacement for Silicon In Wide Range of Consumer and Industrial Uses
GRENOBLE, France – Dec. 16, 2020 – Two complementary research papers from CEA-Leti confirmed that the institute’s approach to gallium-nitride (GaN) technologies is on track overcome challenges in the architecture and performance of advanced GaN devices embedding a MOS gate, and targeting the fast-growing global market for power-conversion systems.
In papers presented at IEDM 2020, scientists recounted experiments with variations of high-electron- mobility transistors (HEMT) based on gallium nitride-on-silicon (GaN-on-Si), called GaN-on-Si HEMT. GaN-based semiconductors improve both performance and reliability of increasingly compact power converters compared to silicon, and AIGaN/GaN HEMTs have shown potential to re