News on China's scientific and technological development.

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gadgetcool5

Senior Member
Registered Member

Tencent launches US$1.5 billion fund to give Chinese scientists freedom to reach new heights of innovation​

“Original innovation is the most difficult task in basic research. Free exploration is unpredictable, difficult to plan, extremely risky and time consuming. That’s why these research activities are less funded,”
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, executive vice-president of the University of Science and Technology of China and a lead scientist in China’s national quantum research programme, said in a statement.

The new programme will fund research in two major areas: mathematics and physical sciences; and biological and biomedical sciences. Under each area there are tens of secondary subjects, such as theoretical computing science and molecular biology.

“The scientists we fund are those who ‘sit on the bench’ doing fundamental research, and their research must step into ‘no man’s land’,” said a director of the secretariat of the programme in an interview published in China Science Daily on Wednesday.

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Well it's not $50 billion, but it's something.
 
O

Overbom

Brigadier
Registered Member
BlackWindMnt said:
If you have the capability of deterrence you want the enemy to know it. It will be a factor in their escalation calculations.

Because a secret deterrence is not a deterrence.
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I think its better to first build it, induct it into the military, operationalize it, and then you can/should start talking about it.

At the moment this is still early (only conceptual design is done so far). Ideally, this news should had been released a few years later imo
 
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visitor123

New Member
Registered Member
Overbom said:
I think its better to first build it, induct it into the military, operationalize it, and then you can/should start talking about it.

At the moment this is still early (only conceptual design is done so far). Ideally, this news should had been released a few years later imo
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how do you know that it has not been deployed?
 
O

Overbom

Brigadier
Registered Member
visitor123 said:
how do you know that it has not been deployed?
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Its certainly a possibility but I doubt it. IMO the tech seems to be a bit too advanced for it to be already developed, deployed and built in sufficient numbers to be meaningful.

R&D will certainly continue but it should take >4 years for all of that to happen (assuming they have just completed the conceptual design)
 
S

SanWenYu

Captain
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Construction of three-dimensional hierarchical porous nitrogen-doped reduced graphene oxide/hollow cobalt ferrite composite aerogels toward highly efficient electromagnetic wave absorption​

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NRGO/hollow CoFe2O4 composite
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were constructed by a facile two-step route.

The prepared composite aerogels showed a 3D hierarchical porous network structure.

EM absorbing capacity was regulated by the ferrite structure and addition amounts.

Strong absorption, wide bandwidth, thin thickness and low loading were achieved.

The potential EM dissipation mechanism of attained composite aerogels was proposed.
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The development of graphene-based composites with low density, robust absorption, wide bandwidth and thin thickness remained a great challenge in the field of electromagnetic (EM) absorption. In this work, nitrogen-doped reduced graphene oxide/hollow cobalt ferrite (NRGO/hollow CoFe2O4) composite aerogels were constructed by a solvothermal and hydrothermal two-step route. Results demonstrated that the as-fabricated composite aerogels had the ultralow density and a unique three-dimensional (3D) network structure, and lots of hollow CoFe2O4 microspheres were almost homogeneously distributed on the wrinkled surfaces of lamellar NRGO. Moreover, superior EM absorbing capacity could be achieved by modulating the ferrite structure, addition amounts of hollow CoFe2O4 and thicknesses. It was noteworthy that the NRGO/hollow CoFe2O4 composite aerogel with the addition amount of ferrite of 15.0 mg possessed the minimum reflection loss of -44.7 dB and maximum absorption bandwidth of 5.2 GHz (from 12.6 to 17.8 GHz) at a very thin thickness of 1.8 mm and filling ratio of 15.0 wt.%. Furthermore, the possible EM attenuation mechanism had been proposed. The results of this work would be helpful for developing RGO-based 3D composites as lightweight, thin and highly efficient EM wave absorbers.
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安徽理工大学化学工程学院疏瑞文教授团队，合成了氮掺杂石墨烯/中空钴铁氧体复合气凝胶，可用于电磁辐射“污染”防护、电磁干扰屏蔽、军事隐身、隔热防火等领域。相关研究成果发表于《材料科学与技术》。
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此次研究中，疏瑞文团队以氧化石墨烯纳米片为模板、乙二胺为还原剂和氮掺杂剂，采用溶剂热-水热自组装两步法，合成氮掺杂石墨烯/中空钴铁氧体复合气凝胶。

研究发现，复合气凝胶具有独特的三维分级多孔网状结构和极低的密度（12.1~14.5 mg/cm3，约为空气密度的9~11倍）。通过改变钴铁氧体的形貌和添加量，可以有效调控复合气凝胶的电磁参数与吸波性能。其中，当中空钴铁氧体的添加量为15mg、匹配厚度为1.8mm时，复合气凝胶具有最优的吸波性能，可以同时满足“薄厚度、强吸收、宽频带、低密度和填充比”的实际应用需求。
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S

SanWenYu

Captain
Registered Member
Chinese scientists have found the genes that control the cotton fibre length. Looks like Xinjiang cotton are going to have even better quality.

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Expressed genes and their new alleles identification during fibre elongation reveal the genetic factors underlying improvements of fibre length in cotton​

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The candidate gene GhMAH1 (Ghir_D10G011050) was validated by the CRISPR–cas9 system. (a) Gene model of GhMAH1. Only one exon for GhMAH1. (b) GhMAH1 was knocked out by CRISPR–cas9 genome editing. The 1 bp insertion and 4 bp/9 bp deletion are shown in GhMAH1. The lower panel illustrates the Sanger sequencing spectrogram. (c) Expression of GhMAH1 in fibre tissue at the three time points. * Represents a significant difference by Student's t-test at P = 0.05. ns indicates no significant difference by Student's t-test. (d) Phenotype of mature fibres of Ghmah1 (CRI24) and WT (CRI24). (e) Mature fibre length between Ghmah1 (CRI24) and WT (CRI24). ** Represents a significant difference by Student's t-test at P = 0.01.
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News report in Chinese:
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近日，中国农业科学院
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棉花分子遗传改良团队与棉花高产育种团队联合国外科研单位，开展了棉花纤维动态伸长相关基因的表达调控和新等位基因的鉴定研究，构建了纤维伸长相关基因的调控网络，揭示新等位基因潜在调控棉花纤维长度的分子机理。相关成果发表在《植物生物技术》(Plant Biotechnology Journal)上。

研究团队以陆地棉中36和海岛棉海7124为亲本，构建了回交自交系群体，并开展了191个子代的基因组重测序分析及47个子代发育纤维的转录组数据分析。

研究发现，新等位基因在子代中的积累显著影响纤维长度，且影响纤维伸长的相关新等位基因在某些子代中出现“超亲”表达。研究人员进一步对纤维表达基因进行定位分析，绘制了纤维伸长相关基因的动态表达调控网络图，从中筛选出105个影响纤维伸长的候选基因，其中包含15个新等位基因。

通过基因编辑技术验证到一个调控棉花纤维伸长的烷烃羟化酶基因GhMAH1。研究结果为解析棉花陆海群体纤维长度变异提供了新思路，为培育长纤维棉花新种质提供了理论基础。
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AssassinsMace

AssassinsMace

Lieutenant General
Rettam Stacf said:
Why does China invest so heavily into deep sea robotic vehicles ?

To detect, locate and remove undersea sensors place by the US in Yellow Sea, E China Sea, S China Sea and maritime passages to go beyond the first island chain ?
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There are lot of precious metals found in the ocean floor. I forget where I saw it here or somewhere else that China is planning a deep sea "space" station.
 
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