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以质量控制为导向的食品检验检测工作开展策略探析

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食品安全导刊 2023年第12期 25-27页

作者：周恒美朱明燕王乾丽吴新文贵州省检测技术研究应用中心贵州贵阳550014

食品检验检测是食品安全管理措施制定和实施的重要依据,食品检验检测结果的准确性会在很大程度上影响食品质量的评价。虽然目前使用的监测检测技术能够满足基本的食品检验检测要求,为食品质量评价和管理提供相关的信息参考,但由于诸多... 详细信息

食品检验检测是食品安全管理措施制定和实施的重要依据,食品检验检测结果的准确性会在很大程度上影响食品质量的评价。虽然目前使用的监测检测技术能够满足基本的食品检验检测要求,为食品质量评价和管理提供相关的信息参考,但由于诸多不确定性因素的存在,食品检验检测的质量仍缺乏有力的保障。基于此,本文以质量控制为切入点,对食品检验检测工作的开展策略进行了探索分析,以期为食品检验检测质量的控制提供相关思路和方法参考。

关键词：质量控制食品检验检测工作策略

维普期刊数据库博看期刊

Characteristics of Particulate Matter Emissions for Low-Sulfur Heavy Oil Used in Low-Speed Two-Stroke Diesel Engines of Ocean-Going Ships

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Journal of Thermal Science 2024年第2期33卷 739-750页

作者： WU Gang MA qianli WEI Lijiang JIANG Guohe wang Tengfei LI Tie Merchant Marine College Shanghai Maritime UniversityShanghai201306China State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai200240China

In this work,particulate matter(PM) emissions from a large two-stroke,low-speed marine diesel engine were investigated when the engine was operated with low-sulfur heavy fuel oil(HFO) at various *** samples were collected in situ from the engine exhaust to determine the detailed physical and chemical *** nanostructure and morphology of the nanoparticles were analyzed using transmission electron microscopy images(TEM).The results show that volatile organic carbon(OC) accounts for more than 80% in the HFO particles and leads to an increase in particle *** thermodynamic conditions of a low-speed engine favor the behavior of capturing the soluble organic components.A large number of spherical char HFO particles with aerodynamic diameters of 0.2 μm-0.5 μm and a suspected inner metal core were *** two peak aerodynamic diameters of the HFO nanoparticles are 15 nm and 86 *** morphological differences among the HFO nanoparticles in varied engine conditions represent the formation process from primary nascent particles to mature graphitized particles caused by *** above study will be valuable for understanding the characteristics of PM emissions from low-sulfur HFO to achieve the ship PM emissions reduction target.

关键词： low-speed diesel engine maritime regulations heavy fuel oil TEM particles size and distribution

Interconnected Ni(OH)_(2)and polyether amine on carbon fiber surface for simultaneously improving interfacial adhesion of epoxy composites and electrochemical properties

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Chinese Journal of Aeronautics 2022年第5期35卷 419-428页

作者： Qing WU Qinqin WAN qianli LIU Fen wang Xin LIU Jianfeng ZHU School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science&TechnologyXi’an 710021China Shanghai Composites Science&Technology Co. Ltd.Shanghai 201112China

Interconnected Ni(OH)_(2)nanoflakes and polyether amine(PEA)were deposited on carbon fiber tows via a facial and effective process of chemical bath deposition and dip *** on this,a win–win benefit of simultaneously improvements in interfacial shear strength(IFSS)of carbon fiber/epoxy composites and the electrochemical activity has been *** with CF and CF-Ni(OH)_(2)composites,the IFSS of CF-Ni(OH)_(2)-PEA/epoxy composite respectively increased 7.9%and 45.4%,which was put down to the covalent bonding of Ni(OH)_(2)-PEA coating with fiber and epoxy matrix,as well as the effective stress transfer by the uniform honeycomb structure of Ni(OH)_(2).In aqueous KOH electrolyte,the CF-Ni(OH)_(2)-PEA electrode presented the maximum specific capacitance of 689.98 F·g^(-1)at 5 m V·s^(-1),572.28 F·g^(-1)at a current density of 0.5 A·g^(-1)due to the strong adhesion of carbon fiber with Ni(OH)_(2)by PEA,the reservation of the threedimensional hollow honeycomb structure of Ni(OH)_(2)for easy ion-transport and–NH_(2)functional groups from PEA for providing more active *** excellent performance of CF-Ni(OH)_(2)-PEA reinforcement demonstrates its promising potential for application in high performance composites with integrated structure and function,which shows great advantages in various fields of aerospace,energy,electronics,automobile,civil engineering,sports,etc.

关键词： Carbon fiber Electrochemical properties Interface/interphase Polymer-matrix composites Surface modification

基于响应曲面法优化H_2O_2/Fe^(3+)脱除烧结烟气中的Hg^0

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环境工程学报 2018年第4期12卷 1083-1091页

作者：李柳柳闫伯骏崔建升邢奕路培李千里王梦思河北科技大学环境科学与工程学院石家庄050018 北京科技大学能源与环境工程学院北京100083 北京市工业典型污染物资源化处理重点实验室北京100083 河北省廊坊市环境保护局廊坊065000

烧结烟气中重金属汞的含量较高,湿法氧化脱除零价汞(Hg^0)是当前最受关注的技术之一,但该氧化脱除技术的操作条件仍需优化。为此,以响应曲面法对H_2O_2/Fe^(3+)氧化脱除Hg^0进行了研究和优化。首先参照单因素实验结果,利用Box-Behnken设... 详细信息

烧结烟气中重金属汞的含量较高,湿法氧化脱除零价汞(Hg^0)是当前最受关注的技术之一,但该氧化脱除技术的操作条件仍需优化。为此,以响应曲面法对H_2O_2/Fe^(3+)氧化脱除Hg^0进行了研究和优化。首先参照单因素实验结果,利用Box-Behnken设计(BBD)的3因素3水平实验研究了溶液温度、H_2O_2浓度和Fe^(3+)浓度3个条件的交互作用并进行分析和优化,发现以H_2O_2/Fe^(3+)氧化脱除Hg^0的最佳条件为溶液温度41.78℃、H_2O_2浓度0.55mol·L^(-1)和Fe^(3+)浓度0.007mol·L^(-1),在此最佳条件下Hg^0的脱除效率可高达87.28%。最后,在该条件下进行了验证研究,实验结果表明最优条件下Hg^0的脱除效率为87.93%±0.87%,与模型预测值基本吻合,表明基于响应曲面分析法所得出的最佳工艺参数准确可靠,对利用H_2O_2/Fe^(3+)脱除钢铁行业烧结烟气中Hg^0的条件优化具有较好的指导作用。

关键词：烧结烟气汞 H2O2/Fe^(3+) 氧化脱除响应曲面法

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水果冷藏集装箱出口作业中制冷中断影响分析

港工技术 2017年第4期54卷 65-69页

作者：马千里彭云王文渊宋向群大连理工大学建设工程学部辽宁大连116024

在集装箱码头出口作业中过程中,港区交通拥堵、低效操作、操作失误等都会引起出口冷链中生鲜水果环境温度的变化,进而引起水果品质下降。针对水果冷藏箱港口出口作业制冷中断影响因素的复杂性和不确定性等特点,本研究结合冷藏箱内水果... 详细信息

在集装箱码头出口作业中过程中,港区交通拥堵、低效操作、操作失误等都会引起出口冷链中生鲜水果环境温度的变化,进而引起水果品质下降。针对水果冷藏箱港口出口作业制冷中断影响因素的复杂性和不确定性等特点,本研究结合冷藏箱内水果托盘中i Button?温度数据记录器记录的环境温度变化及波动数据,基于鱼骨图对水果冷藏箱进行制冷中断的风险识别分析,并给出减少水果冷藏箱在港口出口作业中制冷中断发生次数和持续时间的合理化建议。

关键词：港口出口作业风险识别水果冷藏集装箱制冷中断

Eu^(3+)ions grafted polyacrylonitrile nanofibers possessing enhanced fluorescence performance by introducing benzoic acid as assistant ligand

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Journal of Rare Earths 2022年第3期40卷 421-427,I0003页

作者： Ping Wu qianli Ma Wensheng Yu Jinxian wang Guixia Liu Xiangting Dong Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province Changchun University of Science and TechnologyChangchun 130022China

Eu^(3+) ions were grafted onto the surface of electrospun polyacrylonitrile(PAN)nanofibers through coordination effect between C≡N groups on PAN nanofibers and Eu^(3+) ions,and benzoic acid(BA)was introduced as an assistant *** impacts of concentrations of Eu^(3+) ions and BA,and reaction time on the properties of final products were *** results reveal that Eu^(3+) ions can be successfully grafted onto PAN nanofibers,but the fluorescence intensity of the obtained PAN@Eu^(3+) nanofibers is very *** BA is introduced as the assistant ligand,the fluorescence intensity of the obtained PAN@(Eu^(3+)/BA)nanofibers is greatly stronger than that of PAN@Eu^(3+)nanofibers,and meanwhile,concentration quenching effect of Eu^(3+) ions can be effectively ***,the superior structure of PAN@(Eu^(3+)/BA)nanofibers not only brings the effective utilization of precious elemental europium,but also guarantees high mechanical strength.

关键词： Electrospinning Polyacrylonitrile Nanofibers Fluorescence Rare earths

Referring image segmentation with attention guided cross modal fusion for semantic oriented languages

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Frontiers of Computer Science 2022年第6期16卷 187-189页

作者： qianli ZHOU Rong wang Haimiao HU Quange TAN Wenjin ZHANG Police Information Engineering and Network Security College People's Public Security UniversityBeijing 100038China Computer Science and Engineering Beihang UniversityBeijing 100191China

1 Introduction Referring image segmentation aims to identify and segment the instance by language *** is a challenge task due to the combination of both language and visual domains[1].The current mainstream methods mainly focus on English,and can achieve an appropriated ***,it cannot achieve the similar performance while they are directly applied to semantic-oriented languages like Chinese due to the different language characteristics.

关键词： semantic image modal

传统精酿啤酒与傣药结合生产养生啤酒可行性研究

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现代食品 2021年第17期6卷 53-55,59页

作者：雷开成王乾礼李泽陈熊汉建张秋实滇西应用技术大学傣医药学院云南景洪666100

近年来,精酿啤酒在我国掀起一场热潮,越来越多的饮酒群体倾向于精酿啤酒,但具有一定养生效果且营养价值高的啤酒市场仍处于空白。食物的药用属性与传统医药的药用属性息息相关,作为四大民族医药之一的傣医药学,其理论独特、内容丰富,且... 详细信息

近年来,精酿啤酒在我国掀起一场热潮,越来越多的饮酒群体倾向于精酿啤酒,但具有一定养生效果且营养价值高的啤酒市场仍处于空白。食物的药用属性与传统医药的药用属性息息相关,作为四大民族医药之一的傣医药学,其理论独特、内容丰富,且“药食同源”正是其特色之一。本文主要运用文献研究法对传统精酿啤酒与傣药结合生产养生啤酒的可行性进行分析,了解精酿啤酒目前的产品现状以及傣药的功效,为养生啤酒的发展提供参考。

关键词：养生啤酒傣药可行性

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食品安全承检机构的质量提升研究

现代食品 2023年第13期29卷 128-130页

作者：王乾丽高燕胥建霞周恒美朱明燕胡小芬贵州省检测技术研究应用中心贵州贵阳550000

本文总结了食品安全承检机构近3年存在的质量问题,提出了可操作性强、科学、有效的质量提升计划,为食品安全承检机构的质量提升提供参考。

关键词：食品安全承检机构质量提升食品检测