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光与信息

应用光学 2016年第6期37卷 789-795页

作者：杨振寰宾州大学电气工程美国宾夕法尼亚州PA16802

光不仅是维持生命活动的主要能量来源,也是一种有效的信息载体。阐述了光作为载体与信息之间的密切联系,讨论了海森堡不确定性原理对信息的解释,即每一比特信息都对应着一个光量子,受限于所在的信息元,并且与熵的消耗相关。分别给出了... 详细信息

光不仅是维持生命活动的主要能量来源,也是一种有效的信息载体。阐述了光作为载体与信息之间的密切联系,讨论了海森堡不确定性原理对信息的解释,即每一比特信息都对应着一个光量子,受限于所在的信息元,并且与熵的消耗相关。分别给出了满足不确定性原理条件以及超出该限制时的例子,从而证明了时间和频率的分辨率不能被同时观测,但成像仍然可以在确定性条件的限制下获得。

关键词：海森堡不确定性原理光信息熵

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用白光信息处理作褪色透明片的彩色复原

物理学报 1981年第6期32卷 841-848页

作者： francis t.s.yu 母国光庄松林 Department of Electrical Engineering Pennsylvania State UniversityUniversity ParkPennsylvania 16802 U.S.A 南开大学物理系现代光学研究室上海光学仪器研究所

本文提供了用白光信息处理技术作褪色透明彩色照片彩色复原的原理和实验,其中之一是由空间编码和彩色滤波两步骤完成的,即将待处理的透明彩色片用空间编码技术编制在一张黑白感光底片上,在白光光学处理系统的傅里叶平面中对这编码的黑... 详细信息

本文提供了用白光信息处理技术作褪色透明彩色照片彩色复原的原理和实验,其中之一是由空间编码和彩色滤波两步骤完成的,即将待处理的透明彩色片用空间编码技术编制在一张黑白感光底片上,在白光光学处理系统的傅里叶平面中对这编码的黑白片的频谱进行彩色滤波,最后在系统的输出平面给出彩色增强或复原的图象,另一种是用白光处理技术作褪色透明彩色片的彩色复原实时处理,它可供及时的直接观察并且有操作简便,成本经济和能灵活多用的特点,这两种技术为彩色图象的彩色增强和复原提供了新方法。

关键词：空间编码透明片白光彩色滤波傅里叶频谱

tensor force impact on shell evolution in neutron-rich si and Ni isotopes

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Chinese Physics C 2024年第4期48卷 95-106页

作者： s.V.sidorov A.s.Kornilova t.yu.tretyakova Faculty of Physics Lomonosov Moscow State UniversityMoscow 119991Russia skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State UniversityMoscow 119991Russia

the influence of the tensor interaction of nucleons on the characteristics of neutron-rich silicon and nickel isotopes was studied in this *** forces are considered within the framework of the Hartree-Fock approach with the skyrme *** addition of a tensor component of interaction is shown to improve the description of the splittings between different single-particle states and decrease nucleon-nucleon pairing correlations in silicon and nickel *** attention was directed toward the role of isovector tensor forces relevant to the interaction of like nucleons.

关键词： nuclear shell model tensor interaction silicon isotopes nickel isotopes

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用自适应协同变换相关器的实时自动目标跟踪

应用光学 1991年第1期 54-60+65页

作者： Eddy C.tam francis t.s.yu Don A.Gregory Richard D.Juday 赵振红

描述了用于跟踪图象序列目标的混合式光学/数字系统。由于协同变换相关器在相关处理过程中不需要匹配空间滤波器,因此通过用前一帧目标图象不断地适时修正参考图象的方法,就能够进行目标跟踪。这种协同变换相关器的自适应特性与光学系... 详细信息

描述了用于跟踪图象序列目标的混合式光学/数字系统。由于协同变换相关器在相关处理过程中不需要匹配空间滤波器,因此通过用前一帧目标图象不断地适时修正参考图象的方法,就能够进行目标跟踪。这种协同变换相关器的自适应特性与光学系统的并行性和高处理速度,确保了两个连续帧图象中的目标之间高度相关。根据相关峰值的位置确定出目标的相对位置。评价了系统性能,并介绍了实验结果。

关键词：相关器自适应景物图象图象序列空间滤波器比例因子目标跟踪光学模式识别

^(4)He monolayer on graphene:a quantum Monte Carlo study

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Communications in theoretical Physics 2024年第9期76卷 149-157页

作者： s yu M Boninsegni Department of Physics University of AlbertaEdmontonAlbertaT6G 2H5Canada

We revisit the problem of adsorption of a single^(4)He layer on graphene,focusing on the commensurate(C_(1/3))crystalline phase,specifically on whether it may possess a nonzero superfluid response,and on the existence of superfluid phases,either(metastable)liquid or vacancy-doped *** make use of canonical quantum Monte Carlo simulations at zero and finite temperature,based on a realistic microscopic model of the *** results confirm the absence of any superfluid response in the commensurate crystal,and that no thermodynamically stable uniform phase exists at lower *** evidence of a possibly long-lived,metastable superfluid phase at C_(1/3)coverage is ***,the results of ground-state projection methods and finite-temperature simulations are entirely consistent.

关键词： superfluidity low-dimensional systems quantum Monte Carlo helium supersolids

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彩虹全息图的分辨率和色模糊理论

上海交通大学学报 1980年第4期 5-16页

作者：杨振寰张幼文庄松林陆永祥美国宾夕法尼亚州立大学上海交通大学应用物理系上海光学仪器研究所上海交通大学应用物理系教授上海交通大学顾问教授研究生

本文运用标量场衍射理论,严格地推导了彩虹全息图的分辨率、放大率和色模糊公式**,成功地解释了某些实验现象。由这些公式可知,为了兼顾分辨率和色模糊,狭缝宽度等参数必须折衷选取。

关键词：彩虹全息图再现光参考光色模糊分辨率鉴别率衍射理论狭缝宽度

Measurement of yields and angular distributions ofγ-quanta from the interaction of 14.1 MeV neutrons with oxygen,phosphorus,and sulfur

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Chinese Physics C 2024年第3期48卷 79-92页

作者： D.N.Grozdanov N.A.Fedorov s.B.Dabylova yu.N.Kopatch I.N.Ruskov V.R.skoy t.yu.tretyakova C.Hramco P.I.Kharlamov G.V.Pampushik P.G.Filonchik A.V.Andreev Joint Institute for Nuclear Research(JINR) DubnaRussia Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of SciencesSofiaBulgaria Faculty of Physics Lomonosov Moscow State UniversityMoscowRussia L.N.Gumilyov Eurasian National University AstanaKazakhstan skobeltsyn Institute of Nuclear Physics Moscow State UniversityMoscowRussia Institute of Chemistry of Moldova ChisinauRepublic of Moldova Moscow Institute of Physics and technology MoscowRussia

A study of the inelastic scattering of neutrons with an energy of 14.1 MeV on the nuclei of oxygen,phosphorus,and sulfur was performed at the tANGRA facility at JINR(Dubna).the experiment aimed to refine existing data and obtain new data on the yields and angular distributions ofγ-quanta emitted by the studied nuclei due to neutron-induced nuclear reactions using the tagged neutron *** types of detector systems were used to registerγ-***γ-ray yields were measured using a high-purity germanium(HPGe)*** angular distributions ofγ-rays were obtained using a system of 18 scintillation detectors based on bismuth germanite Bi_(4)Ge_(3)O_(12)(BGO)located around the *** performed experiments measured the yields of two transitions for the reaction of tagged neutrons with 16O,nine transitions for the reaction with ^(31)P,and nine transitions for the reaction with ^(32)s for the first *** angular anisotropy of theγ-radiation accompanying the inelastic scattering of neutrons with an energy of 14.1 MeV on ^(31)P nuclei was also measured for the first time.

关键词： tagged neutron method yields of gamma-quanta high-resolution gamma-spectrometry neutron-nuclear reactions neutron scattering

New model of linkage evolution for the transtensional fault systems in the Nanpu sag of Bohai Bay Basin: Insight from seismic interpretation and analogue modelling

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Petroleum science 2024年第4期21卷 2287-2310页

作者： yu-Heng Wang Fu-sheng yu Bao-Yin Zhao Ling-Jian Meng College of Geosciences China University of Petroleum (Beijing) state Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum (Beijing) Jidong Oilfield Company PetroChina Limited Company

the evolution of faults within the same stress field is frequently influenced by numerous factors,involving the reactivation of pre-existing structures, stress transmission through ductile detachment layers, and the growth, interaction, as well as linkage of new fault segments. this study analyses a complex multi-phase oblique extension fault system in the Nanpu sag(NPs) of the Bohai Bay Basin(BBB),China. High-resolution three-dimensional(3D) seismic data and analogue modelling indicate that the oblique extensional reactivation of pre-existing structures governs the sequential arrangement of fault segments in the caprock, and they dip synthetically to the reactivated fault at depth. During the NW-sE extension in the Eocene, the predominant movement of the pre-existing fault is strike-slip. subsequently,during the N-s extension since the Oligocene, inclined at *** the pre-existing fault, forming splay fault segments and ultimately creating large en-echelon arcuate faults linked by relay ramps. Using fault throw-distance(t-D) and laser scanning, we reconstructed the fault evolution model of oblique extension reactivation in the presence of a ductile detachment basement. Our study illustrates that the arcuate faults can be categorized into linear master fault segments controlled by pre-existing structures, bending splay faults in the termination zone, and normal fault segments responding to the regional stress *** interaction between faults occurs among normal faults and strike-slip faults, and the kinematic unification of the two fault systems is accomplished in the intersection zone. As the faults continue to evolve, the new fault segments tend to relinquish the control of pre-existing structures and concentrate more on the development of planar and continuous major faults. the ductile detachment layer significantly contributes to the uniform distribution of strain, resulting in narrow shear zones and discontinuous normal faults in its absence.

关键词： Analogue modelling transtensional deformation Fault linkage Fault intersection zone Nanpu sag of Bohai Bay basin

Network Intrusion traffic Detection Based on Feature Extraction

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Computers, Materials & Continua 2024年第1期78卷 473-492页

作者： Xuecheng yu Yan Huang yu Zhang Mingyang song Zhenhong Jia College of Information science and Engineering Xinjiang UniversityUrumqi830046China Network Department China Mobile Communications Group Xinjiang CoLtd.UrumqiUrumqi830011China Xinjiang signal Detection and Processing Key Laboratory Xinjiang UniversityUrumqi830000China

With the increasing dimensionality of network traffic,extracting effective traffic features and improving the identification accuracy of different intrusion traffic have become critical in intrusion detection systems(IDs).However,both unsupervised and semisupervised anomalous traffic detection methods suffer from the drawback of ignoring potential correlations between features,resulting in an analysis that is not an optimal ***,in order to extract more representative traffic features as well as to improve the accuracy of traffic identification,this paper proposes a feature dimensionality reduction method combining principal component analysis and Hotelling’s t^(2) and a multilayer convolutional bidirectional long short-term memory(MsC_BiLstM)classifier model for network traffic intrusion *** method reduces the parameters and redundancy of the model by feature extraction and extracts the dependent features between the data by a bidirectional long short-term memory(BiLstM)network,which fully considers the influence between the before and after *** network traffic is first characteristically downscaled by principal component analysis(PCA),and then the downscaled principal components are used as input to Hotelling’s t^(2) to compare the differences between *** datasets with outliers,Hotelling’s t^(2) can help identify the groups where the outliers are located and quantitatively measure the extent of the ***,a multilayer convolutional neural network and a BiLstM network are used to extract the spatial and temporal features of network traffic *** empirical consequences exhibit that the suggested approach in this manuscript attains superior outcomes in precision,recall and F1-score juxtaposed with the prevailing *** results show that the intrusion detection accuracy,precision,and F1-score of the proposed MsC_BiLstM model for the CIC-IDs 2017 dataset are 98.71%,95.97%,and 90.22%.

关键词： Network intrusion traffic detection PCA Hotelling’s t^(2) BiLstM