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Low-power emerging memristive designs towards secure hardware systems for applications in internet of things

nano Materials Science 2021年第2期3卷 186-204页

作者： nan du Heidemarie Schmidt Ilia Polian Department nano Device Technology Fraunhofer Institute for Electronic Nano SystemsTechnologie-Campus 309126ChemnitzGermany Faculty of Electrical Engineering and Information Technology Chemnitz University of Technology(TU Chemnitz)Straße der Nationen 6209126ChemnitzGermany Department of Quantum Detection Leibniz Institute of Photonic Technology(IPHT)Albert-Einstein-Str.907745JenaGermany Institute for Solid State Physics Friedrich Schiller University JenaFürstengraben 107743JenaGermany Institute of Computer Engineering and Computer Architecture(ITI) University of StuttgartPfaffenwaldring 4770569StuttgartGermany

Emerging memristive devices offer enormous advantages for applications such as non-volatile memories and inmemory computing(IMC),but there is a rising interest in using memristive technologies for security applications in the era of internet of things(IoT).In this review article,for achieving secure hardware systems in IoT,lowpower design techniques based on emerging memristive technology for hardware security primitives/systems are *** reviewing the state-of-the-art in three highlighted memristive application areas,*** non-volatile memory,memristive reconfigurable logic computing and memristive artificial intelligent computing,their application-level impacts on the novel implementations of secret key generation,crypto functions and machine learning attacks are explored,*** the low-power security applications in IoT,it is essential to understand how to best realize cryptographic circuitry using memristive circuitries,and to assess the implications of memristive crypto implementations on security and to develop novel computing paradigms that will enhance their *** review article aims to help researchers to explore security solutions,to analyze new possible threats and to develop corresponding protections for the secure hardware systems based on low-cost memristive circuit designs.

关键词： Memristive technology nanoelectronic device Low-power consumption Miniaturization Nonvolatility Reconfigurability In memory computing Artificial intelligence Hardware security primitives Machine learning-related attacks and defenses

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A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition

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Journal of Materials Science & Technology 2019年第8期35卷 1797-1802页

作者： Haifei Zhou nan du Jingdong Guo Shuan Liu Zhejiang Electric Power Corporation Research Institute Hangzhou 310014 China nanchang Hangkong University Nanchang 330063 China Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China

A new insight into the promotion action of Co^2+ on both particle and metal deposition in Ni-diamond composite electrodeposition system was analyzed according to electrochemical measurements. The results showed that the addition of Co^2+ made particles content in deposits increased remarkably. The change of particles content in deposits was related inversely to the change of cathodic zero potential with the increase of the concentration of cobalt sulfate. Zero charge potential of cathode was shifted to much more negative region. The negative shift of the zero potential, combining with positive shift of the zeta potential, increased the electrostatic force between the particle-adsorbed metallic cations and the cathode. It not only benefits to the transportation of particles in solution towards cathode, but also shortens their residence time on cathodic surface. Meanwhile, entry of particles is also promoted. For metals deposition,reduction resistance of metallic cations rises greatly and deposition current at cathodic potentiodynamic polarization decreases after cobalt sulfate has been added into electrolyte. These factors are favorable for increasing particles content in deposits. In addition, physical model of diamond particles deposition state before and after the addition of Co^(2+)has been discussed.

关键词： Cobalt sulfate Composite electrodeposition Ni-diamond Zero charge potential Particle content in deposits

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Localization for mixed near-field and far-field sources under impulsive noise

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Journal of Systems Engineering and Electronics 2024年第2期35卷 302-315页

作者： GAO Hongyuan ZHANG Yuze du Ya’nan CHENG Jianhua CHEN Menghan College of Information and Communication Engineering Harbin Engineering UniversityHarbin 150001China College of Intelligent Systems Science and Engineering Harbin Engineering UniversityHarbin 150001China

In order to solve the problem that the performance of traditional localization methods for mixed near-field sources(NFSs)and far-field sources(FFSs)degrades under impulsive noise,a robust and novel localization method is *** eliminating the impacts of impulsive noise by the weighted out-lier filter,the direction of arrivals(DOAs)of FFSs can be estimated by multiple signal classification(MUSIC)spectral peaks *** on the DOAs information of FFSs,the separation of mixed sources can be ***,the estimation of localizing parameters of NFSs can avoid two-dimension spectral peaks search by decomposing steering *** Cramer-Rao bounds(CRB)for the unbiased estimations of DOA and range under impulsive noise have been *** experiments verify that the proposed method has advantages in probability of successful estimation(PSE)and root mean square error(RMSE)compared with existing localization *** can be concluded that the proposed method is effective and reliable in the environment with low generalized signal to noise ratio(GSNR),few snapshots,and strong impulse.

关键词： source localization far-field source(NFS) near-field source(FFS) impulsive noise Cramer-Rao bound(CRB)

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Co-regulated Protein Functional Modules with Varying Activities in Dynamic PPI Networks

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Tsinghua Science and Technology 2013年第5期18卷 530-540页

作者： Yuan Zhang nan du Kang L Kebin Jia Aidong Zhang the Department of Electronic Information and Control Engineering Beijing University of Technology the Department of Computer Science and Engineering State University of New York at Buffalo the Department of Electronic Information and Control Engineering Beijing University of Technology Beijing 100124 China

Current methods for the detection of differential gene expression focus on finding individual genes that may be responsible for certain diseases or external irritants. However, for common genetic diseases, multiple genes and their interactions should be understood and treated together during the exploration of disease causes and possible drug design. The present study focuses on analyzing the dynamic patterns of co-regulated modules during biological progression and determining those having remarkably varying activities, using the yeast cell cycle as a case study. We first constructed dynamic active protein-protein interaction networks by modeling the activity of proteins and assembling the dynamic co-regulation protein network at each time point. The dynamic active modules were detected using a method based on the Bayesian graphical model and then the modules with the most varied dispersion of clustering coefficients, which could be responsible for the dynamic mechanism of the cell cycle, were identified. Comparison of results from our functional module detection with the state-of-art functional module detection methods and validation of the ranking of activities of functional modules using GO annotations demonstrate the efficacy of our method for narrowing the scope of possible essential responding modules that could provide multiple targets for biologists to further experimentally validate.

关键词： dynamic protein-protein interaction networks dynamic active modules varying activities Bayesian graphical mode

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Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique

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Acta Metallurgica Sinica(English Letters) 2015年第4期28卷 430-437页

作者： Wen-Ming Tian Ying-Jun Ai Song-Mei Li nan du Chao Ye School of Materials Science and Engineering Beihang University National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology Institute Nanchang Hangkong University

The electronic speckle pattern interferometer was used to in situ monitor the pitting corrosion of 304 stainless steel at anodic polarization. The pitting current and pitting current density of a single pit were obtained. The pit growth was controlled by the corrosion products diffusion. The pit morphology was observed by a scanning electron microscope. The results showed that the pit was dish shaped, and the geometric parameters and pit growth time conformed to the function of Y = A ＋ B1t ＋ B2t2 ＋ B3t3.

关键词： Stainless steel Corrosion Electronic speckle pattern interferometry (ESPI) Pitting

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Characterization of the metallo-dependent amidohydrolases responsible for“auxiliary”leucinyl removal in the biosynthesis of 2,20-bipyridine antibiotics

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Synthetic and Systems Biotechnology 2017年第2期2卷 137-146页

作者： Ming Chen Bo Pang Ya-nan du Yi-peng Zhang Wen Liu State Key Laboratory of Bioorganic and Nature Products Chemistry Shanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling RoadShanghai 200032China State Key Laboratory of Microbial Metabolism School of Life Science&BiotechnologyShanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China Huzhou Center of Bio-Synthetic Innovation 1366 Hongfeng RoadHuzhou 313000China

2,20-Bipyridine(2,20-BiPy)is an attractive core structure present in a number of biologically active natural products,including the structurally related antibiotics caerulomycins(CAEs)and collismycins(COLs).Their biosynthetic pathways share a similar key 2,20-BiPy-L-leucine intermediate,which is desulfurated or sulfurated at C5,arises from a polyketide synthase/nonribosomal peptide synthetase hybrid assembly *** on the common off-line modification steps,we here report that the removal of the“auxiliary”L-leucine residue relies on the metallo-dependent amidohydrolase activity of CaeD or *** activity leads to the production of similar 2,20-BiPy carboxylate products that then receive an oxime functionality that is characteristic for both CAEs and *** many metallo-dependent amidohydrolase superfamily proteins that have been previously reported,these proteins(particularly CaeD)exhibited a strong zinc ion-binding capacity that was proven by site-specific mutagenesis studies to be essential to proteolytic *** kinetics of the conversions that respectively involve CaeD and ColD were analyzed,showing the differences in the efficiency and substrate specificity of these two *** findings would generate interest in the metallo-dependent amidohydrolase superfamily proteins that are involved in the biosynthesis of bioactive natural products.

关键词： 2,20-Bipyridine antibiotics Caerulomycins Collismycins Amidohydrolase

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Use of liquid crystal to study the interactions of alkyl polyglycosides with gelatin and bovine serum albumin

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Chinese Chemical Letters 2016年第6期27卷 852-856页

作者： Zhi-Jian Liao Si-nan du Yang Luo Fang Zuo Jian-Bin Luo College of Chemistry & Environment Protection Engineering Southwest University for Nationalities

In this study, liquid crystal（LC） was used to study the interactions of alkyl polyglycosides（APG） with gelatin and bovine serum albumin（BSA） at the LC-aqueous interface. The LC easily undergo an orientational transition from a homeotropic to a planar state after proteins were in contact to the LCaqueous interface decorated with APG, thus inducing an optical change from dark to bright. The optical image analysis reveals that the rearrangement rate of APG monolayer is tightly dependent on the concentration and chemical structure of the protein of interest. For example, the rearrangement rate of APG monolayer increases with an increasing gelatin concentration. We also find that the chemical structure of the proteins has a significant impact on the difference in the growth behavior of bright domains in LC.

关键词： Liquid crystal Alkyl polyglycoside Optical image Orientational transition

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Geometry and formation mechanism of tension gashes and their implication on the hydrocarbon accumulation in the deep-seated strata of sedimentary basin:A case from Shunnan area of Tarim Basin

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Petroleum Science 2024年第1期21卷 87-99页

作者： Yan-nan du Kong-You Wu Yin Liu Yan-Ying Li Zi-Cheng Cao You-Wei Cui Jun Liu Key Laboratory of Deep Oil and Gas School of GeosciencesChina University of Petroleum(East China)Qingdao 266580ShandongChina Exploration and Development Research Institute SINOPEC Northwest Oilfield BranchUrumqi 830011XinjiangChina The Fifth Gas Production Plant Changqing OilfieldPetroChinaXi'an 710018ShaanxiChina

With the theoretical and technological developments related to cratonic strike-slip faults,the Shuntuoguole Low Uplift in the Tarim Basin has attracted considerable attention *** by multi-stage tectonic movements,the strike-slip faults have controlled the distribution of hydrocarbon resources owing to the special fault characteristics and fault-related *** contrast,the kinematics and formation mechanism of strike-slip faults in buried sedimentary basins are difficult to investigate,limiting the discussion of these faults and hydrocarbon *** this study,we identified the characteristics of massive sigmoidal tension gashes(STGs)that formed in the Shunnan area of the Tarim ***-resolution three-dimensional seismic data and attribute analyses were used to investigate their geometric and kinematic ***,the stress state of each point of the STGs was calculated using seismic curvature ***,the formation mechanism of the STGs and their roles in controlling hydrocarbon migration and accumulation were *** results suggest that:(1)the STGs developed in the Shunnan area have a wide distribution,with a tensile fault arranged in an enéchelon pattern,showing an S-shaped *** STGs formed in multiple stages,and differential rotation occurred along the direction of strike-slip stress during formation.(2)Near the principal displacement zone of the strike-slip faults,the stress value of the STGs was higher,gradually decreasing at both *** shallow layer deformation was greater than the deep layer deformation.(3)STGs are critical for connecting source rocks,migrating oil and gas,sealing horizontally,and developing efficient *** study not only provides seismic evidence for the formation and evolution of super large STGs,but also provides certain guidance for oil and gas exploration in this area.

关键词： Tarim Basin Sigmoidal tension gashes Seismic attributes Shear stress calculation Formation mechanism Reservoir control

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From geometric to charge-distribution symmetry:deeper insights into lifting the performance of dysprosium single-ion magnets

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Science China Chemistry 2023年第7期66卷 1989-1996页

作者： Wei Deng Ying-Qian Zhou Shan-nan du Ze-Yu Ruan Si-Guo Wu Jun-Liang Liu Ming-Liang Tong Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen UniversityGuangzhou 510006China

Crystal-field symmetry of lanthanide ions plays a critical role in suppressing quantum tunneling of magnetization(QTM)in single-molecule magnets(SMMs),but high-performance SMM design and modulation remain challenging only in view of the geometric symmetry of the first coordination ***,two bis(semicarbazone)/bis(thiosemicarbazone)dysprosium singleion magnets with pentagonal bipyramid geometry were reported,and bis(thiosemicarbazone)lanthanide complexes have never been reported to the best of our *** served as good archetypes to study the magneto-structural relationships based on the charge *** complex with more ideal geometric symmetry displays fast zero-field QTM with negligible“effective barrier”,owing to the defective charge *** modulating the transverse crystal field via the replacement of the O sites with the less charged and larger radius S atoms,it results in lower geometric but higher charge-distribution symmetry,giving rise to the significant suppression of QTM and the enhancement of reversal barrier up to ca.1,000 *** results demonstrate that the charge-distribution symmetry can be chemically tailored by modification of the crystal field,which is essential for designing high-performance SMMs.

关键词： single-molecule magnets crystal field symmetry strategy electrostatic potential analysis bis(thiosemicarbazone)

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Estimation of estuarine habitat degradation and its influence on the reproduction process of the crab Eriocheir sinensis in the Yangtze River Estuary

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Ecological Processes 2023年第1期12卷 828-842页

作者： Tingting Zhang nan du Zhi Geng Sikai Wang Yu Gao Gang Yang Xiaorong Huang Tao Zhang Ping Zhuang Feng Zhao East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesKey Laboratory of East China Sea Fishery Resources ExploitationMinistry of Agriculture and Rural AffairsShanghai 200090China

Background The provision of habitat for fishery species in estuaries is highly valued and represents one of the most challenging ecosystem service values to ***,quantifying this value is challenging due to complex relationships between habitat change,ecological processes,and environmental *** study aims to estimate estuarine habitat degradation and its impact on the reproduction process of the crab Eriocheir sinensis by characterizing the changes in breeding habitat and investigating relationships between the species and its habitat in the Yang-tze River *** A species distribution model recently developed was applied to estimate the extent and quality of breeding habitat changes from *** intrinsic(physiological)and external(structural)reproductive attributes of the breeding process were measured to assess the effects of habitat *** relationships among habitat change,reproductive attributes and environmental factors were analyzed to understand the underlying driving forces of habitat degradation for breeding process by multivariate statistical *** About 34.24%of essential habitat was lost,mainly in highly suitable areas due to reclamation and waterway *** degradation significantly affects female distribution and their reproductive processes,particularly gonad development during the pre-reproductive period and fecundity during the reproductive period,without altering population *** results indicated that the main ecological function served by the highly suitable breeding ground was the provision for development of gonad and improvement of *** of salinity and turbidity,caused by hydrodynamic changes from large-scale waterway construction,were identified as the environmental determinants contributing to cumulative habitat *** influences ultimately led to a decrease in the fecundity of *** Our research sheds light on the quantif

关键词： Fishery habitat provision Breeding habitat degradation Reproductive process Estuarine ecosystem

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