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食品添加剂的合理使用与食品安全的关系研究

现代食品 2024年第6期30卷 175-177页

作者：苗春雨秦敬波青岛海润农大检测有限公司山东青岛266000

本文概述了食品添加剂的定义、分类及其在食品工业中的重要作用,探讨了食品添加剂使用过程中的安全问题,旨在保障食品安全。

关键词：食品添加剂合理使用食品安全

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食品中重金属污染的风险评估及其检测技术

食品安全导刊 2024年第7期 184-186,192页

作者：秦敬波苗春雨斯坦德科创医药科技(青岛)有限公司山东青岛266000 青岛海润农大检测有限公司山东青岛266000

随着工业化进程的加快和环境污染的日益严重,食品中重金属污染问题引起了广泛关注。重金属污染物不仅影响食品安全,也对公众健康构成了潜在威胁。通过对食品样品中的重金属含量进行检测和分析,可以明确重金属对人体健康的潜在风险。对... 详细信息

随着工业化进程的加快和环境污染的日益严重,食品中重金属污染问题引起了广泛关注。重金属污染物不仅影响食品安全,也对公众健康构成了潜在威胁。通过对食品样品中的重金属含量进行检测和分析,可以明确重金属对人体健康的潜在风险。对食品中的重金属污染进行风险评估,对于保障食品安全、维护公众健康具有重要意义,不仅能够帮助政府和相关部门制定更加有效的食品安全标准和管理措施,还能提高公众对食品安全的认知,从而采取适当的预防措施,减少重金属暴露风险。本文论述了各种检测技术的效率和准确性,并提出了降低安全风险的建议,旨在为食品安全监管提供科学依据和技术支持。

关键词：重金属污染食品安全风险评估检测技术

从“毒损脑络”理论探讨牙龈卟啉单胞菌与阿尔茨海默病的相关性

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中药药理与临床 2024年第2期40卷 125-128页

作者：徐曼如朱月陈金鑫李捷范依然秦静波伍文彬成都中医药大学附属医院成都610072

阿尔茨海默病(Alzheimer’s Disease,AD)是一种与年龄有关的神经变性疾病,是全球老龄化背景下亟待解决的共同问题,迄今为止其发病机制尚未完全明确。近来有研究表示,牙龈卟啉单胞菌(Porphyromonas Gingivalis,P.g)与AD发病有密切关系。... 详细信息

阿尔茨海默病(Alzheimer’s Disease,AD)是一种与年龄有关的神经变性疾病,是全球老龄化背景下亟待解决的共同问题,迄今为止其发病机制尚未完全明确。近来有研究表示,牙龈卟啉单胞菌(Porphyromonas Gingivalis,P.g)与AD发病有密切关系。本文从“毒损脑络”理论出发,结合最近的研究进展,讨论牙龈卟啉单胞菌和AD发生的相关性,为AD等神经退行性疾病的中医治疗提供新思路。

关键词：阿尔茨海默病牙龈卟啉单胞菌毒损脑络神经炎症

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Realization of flexible in-memory computing in a van der Waals ferroelectric heterostructure tri-gate transistor

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Nano Research 2024年第3期17卷 1886-1892页

作者： Xinzhu Gao Quan Chen qinggang qin Liang Li Meizhuang Liu Derek Hao Junjie Li jingbo Li Zhongchang Wang Zuxin Chen School of Semiconductor Science and Technology South China Normal UniversityFoshan 528225China Guangdong Provincial Key Laboratory of Chip and Integration Technology Guangzhou 510631China Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of SciencesHefei 230601China School of Science STEM CollegeRMIT UniversityMelbourne 3000Australia CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesUrumqi 830011China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China College of Optical Science and Engineering Zhejiang UniversityHangzhou 310027China International Iberian Nanotechnology Laboratory(INL) Av.Mestre Jose Veiga s/nBraga 4715-330Portugal

Combining logical function and memory characteristics of transistors is an ideal strategy for enhancing computational efficiency of transistor ***,we rationally design a tri-gate two-dimensional(2D)ferroelectric van der Waals heterostructures device based on copper indium thiophosphate(CuInP_(2)S_(6))and few layers tungsten disulfide(WS_(2)),and demonstrate its multi-functional applications in multi-valued state of data,non-volatile storage,and logic *** co-regulating the input signals across the tri-gate,we show that the device can switch functions flexibly at a low supply voltage of 6 V,giving rise to an ultra-high current switching ratio of 107 and a low subthreshold swing of 53.9 mV/*** findings offer perspectives in designing smart 2D devices with excellent functions based on ferroelectric van der Waals heterostructures.

关键词： two-dimensional(2D)ferroelectric heterostructure tri-gate polymorphic regulation in-memory computing

Constraints on the primordial curvature power spectrum by pulsar timing array data:a polynomial parameterization approach

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Communications in Theoretical Physics 2024年第1期76卷 96-104页

作者： qin Fei School of Mathematics and Physics Hubei Polytechnic UniversityHuangshi 435003China

The recent stochastic signal observed jointly by NANOGrav,parkes pulsar timing array,European pulsar timing array,and Chinese pulsar timing array can be accounted for by scalarinduced gravitational waves(SIGWs).The source of the SIGWs is from the primordial curvature perturbations,and the main contribution to the SIGWs is from the peak of the primordial curvature power *** effectively model this peak,we apply the Taylor expansion to parameterize *** the Taylor expansion parameterization,we apply Bayesian methods to constrain the primordial curvature power spectrum based on the NANOGrav 15 year data *** constraint on the primordial curvature power spectrum possesses a degree of generality,as the Taylor expansion can effectively approximate a wide range of function profiles.

关键词： pulsar timing array scalar-induced gravitational waves inflation

Numerical study on the blocking effect of skin on Flash-Ball Impact and damage assessment

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Defence Technology（防务技术） 2024年第3期33卷 532-545页

作者： Dihua Ouyang Chunwei qin Xiaowen qin Qiantao Zhang Xingyu Liu Xi'an University of Architecture and Technology Xi'an 710055China Analysis and Testing Center Xi'an University of Architecture and TechnologyXi'an 710055China Engineering University of PAP Xi'an 710086China

To explore the response law of non-lethal large-size kinetic energy projectiles to blunt attack on skin tissue,and to evaluate the skin injury characteristics of the attacked personnel and the use safety of kinetic energy *** on the LS-DYNA simulation software,a three-layer skin simulation model and a Flash-Ball rubber bullet model are established,and the force-time and deformation-time biomechanical corridors of the Flash-Ball rubber bullet impacting human skin tissue are *** corridor curve and the energy transfer and diffusion are analyzed and *** safety evaluation of the damage caused by the rubber bullet shooting a human body at different distances is carried out using the empirical formula of the penetration ***,the safe shooting distance is *** results show that the model used in the simulation has a good correlation with the experimental data,its biomechanical corridor characteristics are different from those of conventional vehicle impact and smallsize projectile response *** energy transfer and action time of medium and low-speed impact may cause greater *** fat layer is the largest energy absorption *** minimum safe shooting distance to ensure skin tissue from penetrating damage is 15.8 m,and the limit specific kinetic energy of skin damage is 7.88 J/cm^(2).This study can be extended to the study of biomechanical response law and safety evaluation under the impact of the same type of large kinetic energy projectile,which provides an important theoretical reference for the police to use large kinetic energy projectiles to conduct safe shooting in peacekeeping operations.

关键词： KIPs Blunt strike Biomechanical response Damage analysis

Limit state analysis of rigid retaining structures against seismically induced passive failure in heterogeneous soils

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 1095-1105页

作者： Jianfeng Zhou Changbing qin College of Civil Engineering Huaqiao UniversityXiamen362021China School of Civil Engineering Chongqing UniversityChongqing400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityChongqing400045China National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas Chongqing UniversityChongqing400045China

Soils are not necessarily uniform and may present linearly varied or layered characteristics,for example the backfilled soils behind rigid retaining *** the presence of large lateral thrust imposed by arch bridge,passive soil failure is possible.A reliable prediction of passive earth pressure for the design of such wall is challenging in complicated soil strata,when adopting the conventional limit analysis *** order to overcome the challenge for generating a kinematically admissible velocity field and a statically allowable stress field,finite element method is incorporated into limit analysis,forming finiteelement upper-bound(FEUB)and finite-element lower-bound(FELB)***-static,original and modified pseudo-dynamic approaches are adopted to represent seismic acceleration *** generating feasible velocity and stress fields within discretized elements based on specific criteria,FEUB and FELB formulations of seismic passive earth pressure(coefficient K_(P))can be derived from work rate balance equation and stress *** to an interior point algorithm,optimal upper and lower bound solutions are *** proposed FEUB and FELB procedures are well validated by limit equilibrium as well as lower-bound and kinematic *** studies are carried out to investigate the effects of influential factors on seismic K_(P).Notably,true solution of K_(P) is well estimated based on less than 5%difference between FEUB and FELB solutions under such complex scenarios.

关键词： Retaining wall Passive earth pressure Earthquakes Finite-element limit-analysis methods

AI for Supporting the Freedom of Drawing

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Machine Intelligence Research 2024年第1期21卷 63-88页

作者： Xiaohua Sun Juexiao qin College of Design and Innovation Tongji UniversityShanghai 200082China

Artificial intelligence(AI)has recently been developing rapidly in image processing and *** is not only starting to take over repetitive and tedious tasks but is also involved in creative *** is one of the areas with the greatest potential for collaboration between humans and *** is an important approach to express various information,but due to the lack of appropriate knowledge and skills,ordinary people without long-time training are unable to draw *** there have been various attempts at human-AI collaboration in drawing,it is difficult for researchers to consider the wide variety of specific problems and develop univer-sal methods due to the openness,improvisation,and individuality of *** this paper,we first analysed the contents of drawing and the general creation process in ***,we have described a mechanism for using AI to enable people to regain the freedom of drawing ***,we have developed a framework that describes methods for analysing specific problems and quickly finding solutions by building connections between the influencing factors in drawing,the demands of humans,and possible implementa-tion *** framework also reveals a broad scope of possibilities for applying AI to support people in drawing.

关键词： Intention understanding drawing support drawing art human-artificial intelligence(AI)collaboration

The Coarse l^(p)-Novikov Conjecture and Banach Spaces with Property(H)

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Chinese Annals of Mathematics,Series B 2024年第2期45卷 193-220页

作者： Huan WANG qin WANG Research Center for Operator Algebras School of Mathematical SciencesEast China Normal UniversityShanghai 200241China Key Laboratory of MEA Ministry of Educationand Shanghai Key Laboratory of PMMPEast China Normal UniversityShanghai 200241China

In this paper,for 1

关键词： The coarse l^(p)-Novikov conjecture Banach spaces with Property(H) Coarse geometry K-Theory