News on China's scientific and technological development.

SanWenYu

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Scientists from Harbin Institute of Technology in the Weihai campus created tiny robots powered directly by microwave. The four-leg crawling robot is only 15mm long and weighs 0.42 gram.

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不需要携带任何电器件,可以灵活地工作在其他驱动方式尚不能胜任的某些特殊场合(比如封闭、非透明结构体内部),这是哈尔滨工业大学(威海)机器人研究所软体机器人实验室于近日研制成功的微波驱动机器人的两大特色。该机器人首创性地直接利用微波驱动,从而为机器人驱控提供了一种全新的方式。上述研究成果于近日刊发在国际期刊《尖端科学》上。


微波是指频率在300兆赫兹—300吉赫兹之间的电磁波。相比于磁场、光、超声和湿度等无线致动方式,微波可无损耗地穿透某些非透明障碍物,例如水泥、陶瓷、塑料等。同时,利用相控阵技术,微波也可实现非机械快速转向与聚焦。


哈工大团队利用角锥喇叭天线发射的频率为2.47吉赫兹、功率为700瓦的微波对机器人进行驱动,并实现了多个驱动器联合运动的定量控制。同时,他们也提出了一种基于导线和形状记忆合金弹簧的伸缩致动器,并基于此设计了一种四足爬行机器人。该机器人长15毫米、重量仅为0.42克,展示了微波致动机器人在小型化、轻量化方面的优势。


他们还利用4组伸缩致动器模拟植物的感性运动,黄色的导线如同植物的花蕊,当微波照射在这些“花蕊”上时,“花朵”的4片花瓣就会打开;当没有微波时,花瓣则会全部闭合,显示了微波在集群驱动方面的优势。


该团队将持续开展微波驱动相关研究,改进微波驱动的频控能力并降低功耗,使相关技术在封闭容器内部器件控制、体内操作微器械开发等方面得到工程应用。
 

hullopilllw

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I will try to move the OS discussion here. Since China is looking to replace 50 million computers with domestic systems. They will inevitably use Chinese OS. Right now, it seems like there are a few options.
There is the 统信UOS
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the 银河麒麟
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Although the two Kylin seems to be combined into one
and also Deepin
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Based on this it looks like Kylin have more software developed for it and more compatible hardware for it. Both cases the number is not high.

If you look at Kylinos website, it seems like all the well known domestic CPU producers are using them. It's used in both server and desktop OS, so all the cloud providers also support them.

I personally don't think it's a big deal that they don't have that many compatible software right now. MacOS and Chrome also had a fraction of the applications that windows has. They just need to make sure the computers themselves can serve the professional market first before they move elsewhere.
Deepin is not a lightweight linux distro, it feels sluggish on a i3.
 

el pueblo unido

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Deepin is not a lightweight linux distro, it feels sluggish on a i3.
Deepin is very limited so far, definitely not on par with the like of ubuntu or Debian, however, if the OS supports WeChat, WPS office, QQ, plus some FTP/HTTP/SCP and so on, with some more recovery/secure features updated it can suit 90% of the domestic workstation. one Problem with Linux is that they are not as user friendly as windows, and the more terminal command involved the less appear it will have for the average consumer. best for these distro development teams to focus on a specific professional realm first, or they can intergrade many applications features into Cloud-based which can be accessed either via browser or as an electron app, that's how I use WeChat on manjaro anyway.

P.S.: The Wechat team really does not give a fuck about any demands from their 1 billion domestic audience do they? where is the Linux version?
 

tphuang

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With Chinese cloud market growth slowing down, Huawei is putting a lot of effort into worldwide expansion (but especially in ASEAN countries)
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they don't have cloud data centers in 170 countries, but they are offering services to 170 countries.

But more specifically, this is the important part
Till now, there are 4000 ICT talents in Asia-Pacific. By the next five years, this count will come up to 500,000 ICT talents.
There was the story about Indonesia a while back that was published on Carnegie endowment
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And of course, Thailand is their other major focus market
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They are also in other ASEAN countries, but it sounds like they are making an even bigger push now. In many ways, this sounds like Alibaba Cloud's project Asia Forward.

and earlier this year, they launched a program called LEAP to train ICT talents in sub-saharan Africa
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example here in Zambia
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I think they have about 30% cloud market share in Thailand, so it's pretty reasonable for them to focus on Thailand and Indonesia.
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According to this article, ministers from Thailand, Indonesia, Philippines and Bangladesh were in Bangkok for Huawei's annual technology showcase to Southeast Asia. Huawei said it will invest $100 million until 2024 for 100000 developers.

They are expanding cloud data centers in Ireland and Indonesia. Interesting choice with Ireland there.
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After this, Huawei will hold events in Dubai and Paris after this.
 

BlackWindMnt

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With Chinese cloud market growth slowing down, Huawei is putting a lot of effort into worldwide expansion (but especially in ASEAN countries)
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they don't have cloud data centers in 170 countries, but they are offering services to 170 countries.

But more specifically, this is the important part

There was the story about Indonesia a while back that was published on Carnegie endowment
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And of course, Thailand is their other major focus market
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They are also in other ASEAN countries, but it sounds like they are making an even bigger push now. In many ways, this sounds like Alibaba Cloud's project Asia Forward.

and earlier this year, they launched a program called LEAP to train ICT talents in sub-saharan Africa
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example here in Zambia
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I think they have about 30% cloud market share in Thailand, so it's pretty reasonable for them to focus on Thailand and Indonesia.
Please, Log in or Register to view URLs content!
According to this article, ministers from Thailand, Indonesia, Philippines and Bangladesh were in Bangkok for Huawei's annual technology showcase to Southeast Asia. Huawei said it will invest $100 million until 2024 for 100000 developers.

They are expanding cloud data centers in Ireland and Indonesia. Interesting choice with Ireland there.
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After this, Huawei will hold events in Dubai and Paris after this.
Nice, maybe i should read up on Huawei's cloud services.
 

Nutrient

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It is NOT Fusion reactor.

Here is the paper in question
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I agree that the Z-FFR is not a fusion reactor. The fusion part doesn't generate any net energy. Only the fission part does that.


The reactor is hybrid. It has a small fusion device to generate fast neutrons to bombard natural uranium in a fission reactor. The fission reactor is where most the emerge is generated. The fission reactor also generate Tritium which is fed back to the fusion device as fuel. The fusion device is actually creating some continues explosions.
The Z-FFR looks like a fast neutron breeder reactor that uses Z-pinch fusion to generate the neutrons. This could be a great solution to the fast-neutron shortage that has been holding back the breeders.

Fast breeders can burn U-238, which is 140 times more abundant than U-235 -- on land. The oceans hold so much U-238 that the fuel can last us millions of years, even if the world should use only the fast breeders for its energy needs.

Another advantage is that fast breeders can burn up ALL the fuel. Current fission reactors use up only 1% of their U-235, wasting the remaining 99%; that is why people have been talking about reprocessing. With fast breeders, no reprocessing will be necessary, which makes the U-238 last even longer.

If we rely mostly on solar or wind, and use the Z-FFR only for what Sabine Hossenfelder calls Dunkelflaute (no sun, no wind), the Uranium would probably last a geological era.

The Z-FFR -- if it works -- could indeed be a breakthrough.
 
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