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Secret Sharing Schemes from linear Codes over F2+ vF2+ v~2F2

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Chinese Journal of Electronics 2021年第5期30卷 895-901页

作者： WANG Yaru li fulin ZHU Shixin School of Mathematics Hefei University of Technology

Secret sharing is an important concept in cryptography, however it is a difficult problem to determine the access structure of the secret sharing scheme based on a linear code. In this work, we construct twoweight linear codes over finite field by using linear codes over finite ring. We first study MacDonald codes over the finite ring F+v F+v~2Fwith v~3= v. Then we give torsion codes of MacDonald codes of type α and β, which are twoweight linear codes. Finally we give the access structures of secret sharing schemes based on the dual codes of the two-weight codes.

关键词： cryptography linear code finite ring study MacDonald codes linear codes torsion codes two-weight codes dual codes access structure F2+vF2+v2F polynomials secret sharing schemes cyclic codes two-weight linear codes matrix algebra

FCSR PERIODIC MULTISEQUENCES WITH MAXIMAL JOINT N-ADIC COMPLEXITY AND LARGE k-ERROR JOINT N-ADIC COMPLEXITY OVER Z/(N)

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Journal of Systems Science & Complexity 2014年第2期27卷 370-381页

作者： li fulin HU Honggang ZHU Shixin Department of Applied Mathematics Hefei University of Technology School of Information Science and Technology University of Science and Technology of China

Complexity measures for keystream multisequences over Z/(N) play a crucial role in designing good stream cipher systems. This correspondence shows a general upper bound on k-error joint N-adic complexity of periodic multisequences over Z/(N), and establishes the existence of periodic N-adic multisequences over Z/(N) which simultaneously possess maximal joint N-adic complexity and large k-error joint N-adic complexity. Under some conditions the overwhelming majority of all T-periodic N-adic multisequences over Z/(N) with maximal joint N-adic complexity logN(NT- 1)have a k-error joint N-adic complexity close to logN(NT- 1).

关键词： Cryptography N-adic numbers joint N-adie complexity k-error joint N-adic complexity stream cipher.

A Verifiable Multi-Secret Sharing Scheme Based on Short Integer Solution

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Chinese Journal of Electronics 2023年第3期32卷 556-563页

作者： li fulin YAN Jiayun ZHU Shixin HU Hang School of Mathematics Hefei University of Technology Intelligent Interconnected Systems Laboratory of Anhui Province

With the possible birth of the quantum computer, traditional secret sharing schemes have been unable to meet security requirements. We proposed a new verifiable multi-secret sharing scheme based on the short integer solution problem. By utilizing a symmetric binary polynomial,k secrets and secret shares can be generated,and then we convert the secret shares into binary string on Zq, which can be identified by one-way anti-collision hash function on the lattice, so that multiple secrets can be reconstructed safely. The advantages mainly focus on verifiability without interaction in the distribution phase and less memory requirement. In a secret sharing scheme,verifiability prevents the dealer to share the wrong shares and forces the participants to submit their shares correctly. Meanwhile, the interaction can be reduced, which means the security is improved. In a multi-secret sharing scheme, releasing the public values is inevitable, this paper has less public values and less size of shares per secret size to reduce the pressure of memory consumption in the proper parameters. In the end, it can also effectively resist the quantum attack.

关键词： Hash functions Quantum computing Memory management Lattices Resists Cryptography Computer security

Impact of Doctoral Student Training Process Fit on Doctoral Students’ Mental Health

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International Journal of Mental Health Promotion 2022年第2期24卷 169-187页

作者： fulin li Chuanyi Wang Xiaoguang Yue Institute of Education Tsinghua UniversityBeijing100084China School of Sciences European University CyprusNicosia2404Cyprus

Background:Doctoral students have much higher risk of anxiety or depression than general *** students worldwide are facing varying degrees of mental health ***:Based on the survey data of 6,812 doctoral students worldwide in Nature in 2019,Probit and Logit models are used to explore the correlation between theﬁt of doctoral education and training process and the mental health of doctoral ***:(1)The training environmentﬁt of doctoral students has a signiﬁcant positive impact on their mental health.(2)The academic professionﬁt of doctoral students has a signiﬁcant positive impact on their mental health.(3)The orga-nizational cultureﬁt of doctoral students has a signiﬁcant positive impact on their mental health.(4)Theﬁnancial supportﬁt of doctoral students has a signiﬁcant positive impact on their mental ***:The higher the degree of doctoral students’training environmentﬁt,academic professionﬁt,organizational cultureﬁt,andﬁnancial supportﬁt,the lower the possibility of anxiety or depression among doctoral *** current research results can help reveal extensive factors that affect the mental health of doctoral students,facilitate the planning and development of effective intervention measures by universities,improve theﬁt of the doctoral education and training process,improve the mental health of doctoral students,and boost academic excellence.

关键词： Doctoral student training environmentﬁt doctoral student academic professionﬁt doctoral student organizational cultureﬁt doctoral studentﬁnancial supportﬁt mental health

软土地区狭长型深基坑开挖引起深层土体变形分析

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现代隧道技术 2019年第6期56卷 121-127页

作者：李福林中铁十四局集团大盾构工程有限公司浙江大学建筑工程学院

在深厚软土地层中开挖狭长型深基坑将对周边环境产生较大影响。文章通过建立三维有限元模型,采用HS-Small小应变本构模型模拟狭长基坑开挖过程软土变形特性,分析在狭长基坑开挖过程紧邻土体深层位移发展规律。结果表明:邻近土体竖向及... 详细信息

在深厚软土地层中开挖狭长型深基坑将对周边环境产生较大影响。文章通过建立三维有限元模型,采用HS-Small小应变本构模型模拟狭长基坑开挖过程软土变形特性,分析在狭长基坑开挖过程紧邻土体深层位移发展规律。结果表明:邻近土体竖向及水平位移对基坑开挖深度敏感,随着基坑开挖深度的增加而增大;水平位移发展曲线呈V形或弓形形态,最大水平位移基本与开挖深度一致;开挖深度以上土体发生沉降变形,而开挖深度以下土体由于基坑卸荷发生隆起变形;当拆除支撑而不及时施作新梁板结构时,将减弱整体支护刚度,引起地层水平位移与沉降。由于基坑空间效应影响,基坑长边测点水平及竖向位移最大,短边测点次之,坑角最小。

关键词：狭长型基坑软土地层深层土体变形有限元分析

Influence of Ageing Treatments on Stress Rupture Properties of Ni3Al-base Single-crystal Alloy IC21 at 850℃

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Influence of Ageing Treatments on Stress Rupture Properties ...

Buried interface bridging for inverted cesium-formamidinium triiodide perovskite solar cells with long operational stability

中国材料大会2012

作者： Hui li fulin li Shusuo li Heng Zhang Shengkai Gong School of Materials Science and Engineering Beihang University

ISBN: (纸本)9783037856086

The influence of three different ageing treatments （R1:1100℃/2h,air cooling+870℃ /32h,air cooling, R2: 870℃/32h,air cooling and R3: 1060℃/2h,air cooling+870℃/32h,air cooling） on stress rupture properties of Ni3Al-base single-crystal alloy IC21 was investigated. The results indicate that ageing heat treatments have obvious effects on stress rupture properties of IC21 at 850℃ /500Mpa. After R3 ageing treatment, IC21 alloy presents the longest rupture life and the smallest ellipticity and elongation compared to those after the other two ageing treatments. Microstructure examination shows that the mean size of γ′ precipitate is about 0.44μm after R3 ageing heat treatment （1060℃/2h, ac + 870℃/32h, ac）. Transmission electron microscope （TEM） study on the rupture samples illustrates that after R1 and R2 ageing heat treatments, the density of stacking faults increases and the length is larger compared to that after R3 heat treatment. Meanwhile the shearings of γ′ precipitates are more severe. The appropriate γ′ phase size and γ channel width after R3 treatment promote homogenous deformation by ＜110＞{111} slip in the matrix, and facilitate the formation of finer dislocation networks on the γ/γ′ interface, which can restrain the shearing of γ′ phase by dislocations.

关键词： Heat treatment Stress rupture life Dislocations Stacking fault

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Science China Chemistry 2025年第1期68卷 163-173页

作者： Chenhui Zhang Chunjun liang fulin Sun Ting Zhu Xinghai Huang Yuzhu Guo Xinyu Guo Kunyang Ge Dan li Fangtian You Zhiqun He Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic TechnologyBeijing Jiaotong University Department of Physics School of Physical Science and Engineering Beijing Jiaotong University

In the field of perovskite solar cells(PSCs), the research on defects in the buried interface has been relatively limited due to its non-exposure; however, this interface significantly impacts the performance enhancement of inverted PSCs. This study employs phenylethylammonium chloride(PEACl) molecules as a buffer layer to modify the buried interface of p-i-n structured PSCs,aiming to enhance the uniformity of self-assembled monolayers(SAMs) and facilitate the uniform nucleation and growth of perovskite films on the substrate. Furthermore, the introduction of the PEACl buffer layer effectively passivates defects at the bottom of the perovskite layer and notably enhances the crystal quality of the perovskite film by mitigating residual stress,thereby reducing nonradiative recombination loss. Following these optimizations, the MA-free PSCs treated with PEACl achieve a power conversion efficiency(PCE) of 24.11%, with significant improvements in storage, thermal stability, and operational stability. Particularly noteworthy is the device's performance in an unencapsulated state, whereas after 1,500 hours of continuous light operation stability testing, it retains 97% of its original efficiency. This study not only enriches the systematic understanding of the characteristics of the buried interface in PSCs but also contributes significantly to advancing the commercial production of perovskite photovoltaic technology.

关键词： defect-induced recombination buried interfaces inverted perovskite solar cells crystallization lattice mismatch

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党内法规评估标准体系化探究

广东社会科学 2019年第2期 247-253页

作者：李福林广东外语外贸大学党内法规研究中心

党内法规评估标准是党内法规评估制度建设的核心内容,也是开展党内法规评估活动的关键所在。当前,党内法规评估标准尚不明确,可供参考的标准主要集中在合法性、协调性、规范性和可操作性层面,为了提高评估的全面性和客观性,有必要尝试... 详细信息

党内法规评估标准是党内法规评估制度建设的核心内容,也是开展党内法规评估活动的关键所在。当前,党内法规评估标准尚不明确,可供参考的标准主要集中在合法性、协调性、规范性和可操作性层面,为了提高评估的全面性和客观性,有必要尝试运用立法后评估的基本理论以及借鉴立法后评估的实践经验,增加对党内法规合宪性、合理性和实效性的考察,确立体系化的党内法规评估标准,以实现对党内法规制定质量和实施效果的科学评估,促进党内法规制度整体质量的提高、协调性的增强、执行力的提升。

关键词：党内法规评估标准质量实施效果合法性合理性

中国行政法法典化中行政法律关系理论的框架性分析

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学术研究 2023年第4期 67-71页

作者：李福林广东外语外贸大学党内法规研究中心广东广州510420

中国行政法法典化是一个系统工程,既需要行政观念的转变,也需要制度建设的保障,更需要法学方法论的有效运用。行政法律关系理论是为现代行政法革新,尤其是大陆法系行政法学发展所普遍重视与接受的法学方法论。行政法律关系理论在中国现... 详细信息

中国行政法法典化是一个系统工程,既需要行政观念的转变,也需要制度建设的保障,更需要法学方法论的有效运用。行政法律关系理论是为现代行政法革新,尤其是大陆法系行政法学发展所普遍重视与接受的法学方法论。行政法律关系理论在中国现代行政法学发展中具有包容性、时代性与合宪性的法解释论上的价值,在逻辑层面与经验维度中发挥着法认识论的价值,在法律解释的统一性与法学建设的体系化中体现出法教义学上的价值。行政法律关系理论的合理运用能够推动中国行政法学形成更加严谨的体系,为推进我国行政法法典化提供另一种重要的法学方法论。

关键词：行政法律关系理论行政法法典化学术价值框架性分析