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氯杀菌剂在食品加工中的应用及抑菌建模研究进展

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包装工程 2020年第21期41卷 1-10页

作者：林梓杰方太松胡丽丽刘阳泰王翔李红梅董庆利上海理工大学医疗器械与食品学院上海200093

目的为研究与拓展氯杀菌剂在食品加工中的应用提供一定的思路与理论参考。方法综述氯杀菌剂在食品微生物控制中的应用、抑菌机理及其抑菌建模研究进展,并对其发展前景予以展望。结果氯杀菌剂因具有广谱杀菌、杀菌作用强、相对安全高效... 详细信息

目的为研究与拓展氯杀菌剂在食品加工中的应用提供一定的思路与理论参考。方法综述氯杀菌剂在食品微生物控制中的应用、抑菌机理及其抑菌建模研究进展,并对其发展前景予以展望。结果氯杀菌剂因具有广谱杀菌、杀菌作用强、相对安全高效等优点,被广泛应用于食品加工中,以保证食品的微生物安全。氯杀菌剂的抑菌机理尚不完全明晰,针对微生物单细胞水平的氯杀菌剂抑菌动力学研究也相对较少。结论氯杀菌剂在食品加工领域的发展潜力巨大,探明其抑菌机理并结合预测微生物学相关理论,可以更好地评估氯杀菌剂对食源性致病菌的抑制作用,更科学地利用氯杀菌剂以保证食品的微生物安全性。

关键词：氯杀菌剂食品加工食源性致病菌预测微生物学

食品类本科专业课程增加食品信息学内容的思考

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食品安全质量检测学报 2020年第20期11卷 7516-7520页

作者：邱景璇许东坡董庆利上海理工大学医疗器械与食品学院上海200093

食品信息学是大数据时代下对食品相关营养、物流、微生物等数据进行收集、分析及处理的一门交叉学科。当前开设食品本科专业的高等院校里开设食品信息学专业课的较少,建议在食品相关本科专业中增加食品信息学内容,使大学生了解并初步掌... 详细信息

食品信息学是大数据时代下对食品相关营养、物流、微生物等数据进行收集、分析及处理的一门交叉学科。当前开设食品本科专业的高等院校里开设食品信息学专业课的较少,建议在食品相关本科专业中增加食品信息学内容,使大学生了解并初步掌握利用食品相关数据进行数据库构建、信息分析、预测模型建立等技能,及时跟进食品信息学领域新进展,有助于食品专业大学生适应大数据时代下新的人才要求。该内容的加入是对食品专业本科教学体系的重要补充。

关键词：食品信息学数据处理本科教学

Analysis of the anti-T2DM components in dichloromethane fraction of Schisandra sphenanthera and its mechanism

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Traditional Medicine Research 2025年第1期10卷 27-43页

作者： Shi-Bo Feng Hai-Hui Jiang Hui-li Kang Yi Jiang Hua-Wei Zhang Xiao-Mei Song Yu-Ze li Wen-li Huang dong-dong Zhang Chong Deng School of Pharmacy Shaanxi University of Chinese MedicineXianyang 712046China School of Pharmacy and Shaanxi Qinling Application Development and Engineering Center of Chinese Herbal Medicine Shaanxi University of Chinese MedicineXianyang 712046China Key Laboratory for Research and Development of“Qin Medicine”of Shaanxi Administration of Traditional Chinese Medicine Xianyang 712046China Shaanxi Key Laboratory of Research and Application of“Taibai Qi Yao” Xianyang 712046China

Background:The type 2 diabetes mellitus(T2DM)pharmacodynamic study of various parts of Schisandra sphenanthera was conducted in the previous stage,and it was found that dichloromethane extracted part(SDP)had a significant hypoglycemic ***,the components of SDP were analyzed,and the specific mechanism of its anti-T2DM was ***:We used a high-fat,high-sugar diet in combination with streptozotocin to induce a T2DM rat model,and the model rats were divided into two groups according to body weight and blood ***,oral glucose tolerance test,fasting blood glucose,low density lipoprotein cholesterol,superoxide dismutase,insulin,glycated hemoglobin,total cholesterol,nonesterified free fatty acids,alanine aminotransferase,high-density lipoprotein cholesterol,aspartate aminotransferase,malondialdehyde,and glutathione peroxidase were measured,organ indices were calculated,and pathological sections of pancreas and liver were *** 16S rRNA V3–V4 region of intestinal flora was sequenced to explore the effect of SDP on biochemical indicators and intestinal *** on the above indicators,the anti-T2DM mechanism of SDP in Schisandra sphenanthera was ***:After six weeks of administration,the biochemical indices of diabetic rats were diminished compared to the control *** SDP could significantly increase the gut microbialα-diversity index,resulting in significant changes in the flora of T2DM rats,with increased richness and diversity,reduced harmful flora,and significantly back-regulated the levels of acetic acid,propionic acid,and butyric ***:SDP can improve the symptoms associated with elevated blood glucose,dyslipidemia,elevated fasting insulin levels,and damaged glucose tolerance in *** against T2DM may be through the control of intestinal flora to normalize and exert anti-diabetic effect;its main active components may be lignans and terpenoids.

关键词： Schisandra sphenanthera T2DM intestinal flora HPLC

Photo‑Energized MoS_(2)/CNT Cathode for High‑Performance li–CO_(2)Batteries in a Wide‑Temperature Range

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Nano-Micro Letters 2025年第1期17卷 160-175页

作者： Tingsong Hu Wenyi lian Kang Hu Qiuju li Xueliang Cui Tengyu Yao Laifa Shen Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

li–CO_(2) batteries are considered promising energy storage systems in extreme environments such as Mars;however,severe performance degradation will occur at a subzero temperature owning to the sluggish reaction ***,a photo-energized strategy adopting sustainable solar energy in wide working temperature range li–CO_(2) battery was achieved with a binder-free MoS_(2)/carbon nanotube(CNT)photo-electrode as *** unique layered structure and excellent photoelectric properties of MoS_(2) facilitate the abundant generation and rapid transfer of photo-excited carriers,which accelerate the CO_(2) reduction and li_(2)CO_(3) decomposition upon *** illuminated battery at room temperature exhibited high discharge voltage of 2.95 V and mitigated charge voltage of 3.27 V,attaining superior energy efficiency of 90.2%and excellent cycling stability of over 120 *** at an extremely low temperature of−30℃,the battery with same electrolyte can still deliver a small polarization of 0.45 V by the photoelectric and photothermal synergistic mechanism of MoS_(2)/CNT *** work demonstrates the promising potential of the photo-energized wide working temperature range li–CO_(2) battery in addressing the obstacle of charge overpotential and energy efficiency.

关键词： li-CO_(2)batteries Photo-energized Wide operation-temperature Kinetics MoS_(2)

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He li li Sai Wang Shao-Jiang Wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng li Meifeng Cai Shengjun Miao Yuan li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

Modular assembly of Co4-thiacalix[4]arene units and Keggin-type SiW12O40 for visible-light photothermal conversion

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Tungsten 2025年第1期 112-119页

作者： Jia-Hui li qing Zhao dong-Ao Mao Kun Zhou Bao-Kuan Chen Yan-Feng Bi School of Petrochemical Engineering Liaoning Petrochemical University

The construction of metal-organic coordination clusters（MCCs） using modular secondary building units is an important method for preparing functional *** this study,two new MCCs modularly assembled from Keggin-type {SiW12O40}H4TC4A=p-tert-Butylthiacalix[4]arene(SiW12) units and thiacalixarene-supported Co4-thiacalix[4]arene(Co4-TC4A polynuclear second-building units（PSBUs,H4TC4A=p-tert-Butylthiacalix[4]arene） are *** two MCCs,abbreviated as Co4-SiW12and Co8-SiW12,were structurally characterized by single-crystal X-ray *** Co4-SiW12is a supramolecular structure involving cation-anion interactions between Co4-TC4A PSBUs and ***8-SiW12features "barbell-like" shapes with two Co4-TC4A coordinatively linked to a Keggin-type SiW12unit on opposite via W-O_t-Co *** coordination of Co4-TC4A to SiW12in Co8-SiW12resulted in significantly improved photothermal conversion performances compared with Co4-SiW12and pure SiW12or ***-gap determination and photophysical analysis combined with density functional theory calculations indicated the binding mode between Co4-TC4A PSBUs and SiW12,which considerably influences the way of electron transport and the conversion ability of visible light to heat.

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LPCVD半绝缘多晶硅的性质和应用研究

河北大学学报（自然科学版） 1984年第2期8卷 62-70页

作者：翟冬青李洪鑫李彦波河北大学电子系

成功地用LPCVD技术制取了优质SIPOS膜。SIPOS膜的生长速率与生长过程中的N_2O/S_iH-4流量比密切相关,SIPOS膜的众多性质中起决定性作用的是其内的氧原子浓度,而膜中氧原子浓度的高低也取决于生长过程中的N_2O/S_iH_4流量比。MO(SI)S结构... 详细信息

成功地用LPCVD技术制取了优质SIPOS膜。SIPOS膜的生长速率与生长过程中的N_2O/S_iH-4流量比密切相关,SIPOS膜的众多性质中起决定性作用的是其内的氧原子浓度,而膜中氧原子浓度的高低也取决于生长过程中的N_2O/S_iH_4流量比。MO(SI)S结构的C—V特性测量及实际应用试验表明,SIPOS膜具有优良的钝化性质和钝化效果。

关键词：钝化效果半绝缘多晶硅流量比 LPCVD 氧原子晶粒间界晶界面缺陷半导体表面硅衬底

基于AMESim的120紧急阀的建模及仿真分析

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铁道机车车辆 2009年第6期29卷 37-39,49页

作者：杨璨倪文波蒋冬清李芾西南交通大学机械工程学院四川成都610031

120紧急阀是保证货运列车紧急情况下行车安全的重要部件,采用AMESim仿真软件对其进行了仿真分析。通过对120紧急阀工作原理的分析,建立了120紧急阀在AMESim仿真环境下的仿真模型,并对其初充气、紧急灵敏度及排气性能和安定性进行了仿真... 详细信息

120紧急阀是保证货运列车紧急情况下行车安全的重要部件,采用AMESim仿真软件对其进行了仿真分析。通过对120紧急阀工作原理的分析,建立了120紧急阀在AMESim仿真环境下的仿真模型,并对其初充气、紧急灵敏度及排气性能和安定性进行了仿真分析。通过仿真结果与试验对比分析,仿真曲线与试验曲线较吻合,证明仿真模型的正确性。

关键词： 120紧急阀 AMESim 仿真分析