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Record W1572322541

“光障”挡不住人类前进的脚步——纪念第242次香山科学会议召开10周年

2013· article· zh· W1572322541 on OpenAlexaboutno aff
黄志洵

Bibliographic record

VenueActa Scientiarum Naturalium Universitatis Sunyatseni · 2013
Typearticle
Languagezh
FieldEngineering
TopicFluid dynamics and aerodynamics studies
Canadian institutionsnot available
Fundersnot available
KeywordsComputer science
DOInot available

Abstract

fetched live from OpenAlex

第242次香山科学会议的主题是"宇航科学前沿与光障问题"。如所周知A.Einstein于1905年断言"超光速没有存在的可能",后人称为"光障"。但在这次会议上宋健院士指出,该说法仅是假设,因为超光速运动不能完全观测,在什么也看不见的地方只能是猜测或假说。现在把太阳系内飞行称为航天,系外飞行称作宇航。估计在本世纪将有第一批宇航员飞出太阳系并安全返回,而飞出太阳系是人类的伟大理想。但这有许多理论与技术问题需要解决。所以必须加大航行速度,应达到光速,可能的话应为超光速。本文回顾了10年前召开的第242次香山科学会议的成就,探讨了2003~2013年间的超光速研究工作。首先对"光障"和"声障"作了比较研究,认为可压缩流体力学可用在超光速研究中,空气动力学发展对突破光障有参考作用。其次讨论了信息速度问题,指出近10年来负群速(NGV)已在许多科学实验中发现,而NGV是超光速的一种形式。众多群速超光速实验是很大的成绩,从波粒二象性角度看就有可能发现以超光速运动的奇异电子。故可考虑改装加速器,使粒子在通过某种势垒后能量减小从而速度加快(v〉c区域的规律)。这类似于使用Laval管突破声障的方法。……本文还讨论了Alcubierre曲速引擎的改变空时以实现超光速宇航方案,虽只是假说,但美国《时代》周刊已于2012年9月19日报道说:"美国航天局着手研究超光速曲速引擎"。因此,重要之点在于NASA已认可超光速宇宙航行。根据10年来超光速研究的发展,认为新学科"超光速物理"的建立已是既成事实。最后进一步讨论了真空中光速c的定义及光速恒定性问题。

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.811
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0010.002
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.002

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.004
GPT teacher head0.175
Teacher spread0.171 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2013
Admission routes1
Has abstractyes

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