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Marine Life Science & Technology 2022年第2期4卷 245-254页

作者： Xinyu Wang Han Ye jiefen cui Yongzhou Chi Ruizhi Liu Peng Wang College of Food Science and Engineering Ocean University of ChinaQingdao266003China State Environmental Protection Key Laboratory of Estuarine and Coastal Environment Beijing100012China

Sulfated rhamnose polysaccharide(SRP)derived from Enteromorpha prolifera is a metal-ion chelating agent that could potentially be used to treat *** aim of our study was to determine the effect of a variant of SRP on ***,we synthesized and characterized SRPE-3 chromium(III)[SRPE-3-Cr(III)]complex using an enzymatic *** maximum chelation rate was 18.2%under optimal chelating conditions of pH 6.0,time 4 h,and temperature 60°*** transform infrared spectroscopy results showed important sites for Cr(III)-binding were O–H and C=O *** then studied the hypolipidemic effects of SRPE-3-Cr(III)on type 2 diabetes mellitus(T2DM)induced by a high-fat,high-sucrose diet(HFSD).Decreased blood glucose content,body fat ratio,serum TG,TC,LDL-C,and increased serum HDL-C were observed after treatment with SRPE-3-Cr(III).In addition,SRPE-3-Cr(III)significantly reduced leptin,resistin,and TNF-αlevels,and increased adiponectin contents relative to *** results also showed that SRPE-3-Cr(III)could alleviate the HFSD-lesioned ***-3-Cr(III)also improved lipid metabolism via a reduction in aspartate aminotransferase,alanine aminotransferase,fatty acid synthase,and acetyl-CoA carboxylase activities in the ***-3-Cr(III)at low doses exhibited better lipid-lowering activities,hence,could be considered to be a novel compound to treat hyperlipidemia and also act as an anti-diabetic agent.

关键词： Sulfated rhamnose polysaccharides Enteromorpha prolifera Chromium Hypolipidemic Type 2 diabetic mice

不同提取方式的柚皮果胶对小鼠结肠炎的缓解作用

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中国食品学报 2023年第7期23卷 187-196页

作者：崔洁芬赵成英王凤郑金铠青岛农业大学食品科学与工程学院山东青岛266109 山东省特种食品技术创新中心山东青岛266109 青岛特种食品研究院山东青岛266109 中国农业科学院农产品加工研究所、农业部农产品加工重点实验室北京100193

目的:探究碱(P10)、纤维素酶(C)和碱+纤维素酶(P10+C)提取得到的3种柚皮果胶对葡聚糖硫酸钠(DSS)诱导的小鼠急性结肠炎的缓解作用。方法:将小鼠随机分为正常组、模型组、P10组、C组和P10+C组。采用染色法、ELISA、16S测序、气相色谱等... 详细信息

目的:探究碱(P10)、纤维素酶(C)和碱+纤维素酶(P10+C)提取得到的3种柚皮果胶对葡聚糖硫酸钠(DSS)诱导的小鼠急性结肠炎的缓解作用。方法:将小鼠随机分为正常组、模型组、P10组、C组和P10+C组。采用染色法、ELISA、16S测序、气相色谱等方法分析小鼠的组织结构、炎症因子、肠道菌群、短链脂肪酸等的变化。结果:柚皮果胶P10+C对小鼠结肠炎的缓解作用最好,其次是P10和C。P10+C可以显著降低DSS诱导的结肠炎小鼠的疾病活动指数和脾脏肥大,缓解结肠缩短和红肿,结肠黏膜受损,隐窝破坏,杯状细胞减少,有效保护肠道屏障。P10+C显著提高了抗炎因子(IL-10)的水平,抑制了促炎因子(IL-6、IL-1β、TNF-α)的分泌,提高了结肠炎小鼠的肠道菌群丰富度和多样性,提高了有益菌阿克曼菌、严格梭状芽胞杆菌-1、毛螺旋菌NK4A136、乳酸杆菌、瘤胃球菌UCG-014的相对丰度,促进了短链脂肪酸的产生,进而缓解肠道炎症。结论:P10+C可作为一种潜在的益生元,缓解急性结肠炎。

关键词：柚皮果胶结肠炎肠道菌群短链脂肪酸

Number of Solitons Emerged in the Initial Profile of Shallow Water Using Convolutional Neural Networks

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Journal of Systems Science & Complexity 2024年第2期37卷 463-479页

作者： WANG Zhen cui Shikun School of Mathematical Sciences Dalian University of TechnologyDalian 116024China School of Mathematical Sciences Beihang UniversityBeijing 100191China

The soliton resolution conjecture proposes that the initial value problem can evolve into a dispersion part and a soliton ***,the problem of determining the number of solitons that form in a given initial profile remains unsolved,except for a few specific *** this paper,the authors use the deep learning method to predict the number of solitons in a given initial value of the Korteweg-de Vries(KdV)*** leveraging the analytical relationship between Asech^(2)(x)initial values and the number of solitons,the authors train a Convolutional Neural Network(CNN)that can accurately identify the soliton count from spatio-temporal *** trained neural network is capable of predicting the number of solitons with other given initial values without any additional *** extensive calculations,the authors demonstrate the effectiveness and high performance of the proposed method.

关键词： Convolutional neural network deep learning method KdV equation soliton

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Multi-Sensor Fusion Adaptive Estimation for Nonlinear Under-observed System with Multiplicative Noise

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Chinese Journal of Electronics 2024年第1期33卷 282-292页

作者： Yongpeng cui Xiaojun SUN School of Electronic Engineering Heilongjiang University Key Laboratory of Information Fusion Estimation and Detection

The adaptive fusion estimation problem was studied for the multi-sensor nonlinear under-observed systems with multiplicative noise. A one-step predictor with state update equations was designed for the virtual state with virtual noise first of all. An extended incremental Kalman filter(EIKF) was then proposed for the nonlinear under-observed systems. Furthermore, an adaptive filtering method was given for optimization. The fusion adaptive incremental Kalman filter weighted by scalar was finally proposed. The comparison analysis was made to verify the optimization of the state estimation using adaptive filtering method in the filtering process.

关键词： Adaptive systems Information filters Matrices Adaptive estimation Kalman filters State estimation Nonlinear systems

“Buckets effect”in the kinetics of electrocatalytic reactions

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Journal of Energy Chemistry 2024年第2期89卷 388-396,I0010页

作者： Haowen cui Yan-Xia Chen Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

In this study,we systematically investigated the effect of proton concentration on the kinetics of the oxygen reduction reaction(ORR)on Pt(111)in acidic *** results demonstrate a rectangular hyperbolic relationship,i.e.,the ORR current excluding the effect of other variables increases with proton concentration and then tends to a constant *** consider that this is caused by the limitation of ORR kinetics by the trace oxygen concentration in the solution,which determines the upper limit of ORR kinetics.A model of effective concentration is further proposed for rectangular hyperbolic relationships:when the reactant concentration is high enough to reach a critical saturation concentration,the effective reactant concentration will become a constant *** could be due to the limited concentration of a certain reactant for reactions involving more than one reactant or the limited number of active sites available on the *** study provides new insights into the kinetics of electrocatalytic reactions,and it is important for the proper evaluation of catalyst activity and the study of structureperformance relationships.

关键词： Oxygen reduction reaction Kinetics Zero order Rectangular hyperbolic relationship pH effect

Nano-effect enhanced cooperative luminescence of Yb^(3+) clusters in bulk materials

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Journal of Rare Earths 2024年第3期42卷 473-478,I0002页

作者： Daguang Li Jiahao cui Yanhui Dong Hao cui Dan Zhao Weiping Qin State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun130012China

In order to improve the multi-ion cooperative transition, we proposed and exploited a novel nanoscale effect, namely the nanoshell effect in bulk materials. Based on the effect, an optimal material structure was designed by coating the surfaces of Ca F_(2):Yb^(3+)micron size particles with ZrO_(2). An about 2 times higher intensity of cooperative luminescence is observed upon laser excitation at 980 nm. Dynamical analysis exhibits that the novel effect plays a key role in improving the performance of cooperative transitions. Our results also suggest that the nanoshell effect in bulk materials is likely to be significant in some special cases, which have not been reported yet in the literature.

关键词： Yb^(3+)cluster ZrO_(2) Nanoshell Enhancement Cooperative luminescence Rare earths

Influence of ammonium sulfate on the corrosion behavior of AZ31 magnesium alloy in chloride environment

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Journal of Magnesium and Alloys 2024年第3期12卷 1082-1101页

作者： Feng Ge Zhongyu cui Yue Liu Li Lei Xin Wang Hongzhi cui School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Beijing National Innovation Institute of Lightweight Ltd.Beijing 101499China

Electrochemical corrosion of AZ31 magnesium alloy in the NH_(4)^(+)-SO_(4)2−-Cl−environment is *** of NH_(4)^(+)overshadows that of Cl−as the(NH_(4))_(2)SO_(4) concentration is 0.005 M or higher,yielding an evolution from localized corrosion to uniform *** effect of NH_(4)^(+)can be attributed to that(i)NH_(4)^(+)dissolves the inner MgO and hinders the precipitation of Mg(OH)_(2) and(ii)the buffering ability of NH_(4)^(+)provides H+,enhances the hydrogen evolution,and expedites the corrosion *** latter is demonstrated as the dominant factor with the results in unbuffered and buffered *** severe corrosion and hydrogen process in NH_(4)^(+)-containing solution results in a high Hads coverage and yields an inductive loop within the low ***,SO_(4)^(2−)is helpful in generating cracked but partially protective corrosion products,while Cl−could broaden the corrosion area beneath the corrosion product.

关键词： Magnesium alloy Ammonium corrosion Electrochemical kinetic parameter Anodic dissolution.

Deciphering the linear relationship in the activity of the oxygen reduction reaction on Pt electrodes:A decisive role of adsorbates

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Journal of Energy Chemistry 2024年第7期94卷 70-77页

作者： Haowen cui Yan-Xia Chen Hefei National Research Center for Physical Sciences at Microscale and Department of Chemical Physics University of Science and Technology of ChinaHefei 230026AnhuiChina

Despite substantial efforts in developing high-performance catalysts for the oxygen reduction reaction(ORR),the persistent challenge lies in the high onset overpotential of the ORR,and the effect of the elec-trolyte solution cannot be ***,we have systematically investigated the impact of adsorbate species and concentration,as well as solution pH,on the ORR activity on Pt(111)and Pt(poly)*** results all tend to establish a linear quantitative relationship between the onset potential for ORR and the adsorption equilibrium potential of the *** finding indicates the decisive role of adsorbates in the onset potential for ORR,suggesting that the adsorption potential of adsorbates can serve as an intuitive criterion for ORR *** support for this conclusion is derived from experimental results obtained from the oxygen evolution reaction on Pt(poly)with different adsorbate species and from the hydrogen evolution reaction on Pt(111)with iodine *** further propose both an empirical equation for the onset potential for ORR and the concept of a potential-regulated adsor-bate shielding effect to elucidate the influence of adsorbates on ORR *** study provides new insights into the high onset overpotential of the ORR and offers potential strategies for predicting and enhancingORRactivity inthefuture.

关键词： Oxygen reduction reaction Activity Adsorbate Equilibrium potential Pt(111)

Carbon nanotube integrated circuit technology:purification,assembly and integration

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International Journal of Extreme Manufacturing 2024年第3期6卷 120-138页

作者： Jianlei cui Fengqi Wei Xuesong Mei State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China

As the manufacturing process of silicon-based integrated circuits(ICs)approaches its physical limit,the quantum effect of silicon-based field-effect transistors(FETs)has become increasingly *** the burgeoning carbon-based semiconductor technology has become one of the most disruptive technologies in the post-Moore *** one-dimensional nanomaterials,carbon nanotubes(CNTs)are far superior to silicon at the same technology nodes of FETs because of their excellent electrical transport and scaling properties,rendering them the most competitive material in the next-generation ICs ***,certain challenges impede the industrialization of CNTs,particularly in terms of material preparation,which significantly hinders the development of CNT-based *** on CNT-based ICs technology,this review summarizes its main technical status,development trends,existing challenges,and future development directions.

关键词： carbon nanotubes integrated circuits field-effect transistors post-Moore

Group Decision-Making Method of Entry Policy During a Pandemic

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Tsinghua Science and Technology 2024年第1期29卷 56-65页

作者： Chunsheng cui Baiqiu Li Xianfeng Chen College of Computer and Information Engineering Henan University of Economics and LawZhengzhou 450046China Tourism College Beijing Union UniversityBeijing 100101China

Omicron,the new mutant coronavirus,has spread rapidly globally,attracting close attention from different stakeholders *** complex and constantly changing epidemic situation has had a new impact on the ***,this paper focuses on the characteristics of the rapid spread of the COVID-19 variant ***,epidemic prevention experts conduct preliminary screening as part of the existing epidemic plan database according to the current local situation,after which they sort the alternatives deemed more suitable for the *** the decision-makers identify the most divergent expert group,plan for consultation and adjustments,and finally obtain the plan with the smallest *** article aims to integrate the experts'opinions with the method of minimizing the differences,which can maximize the expert consensus and help organize the schemes that best meet the epidemic *** experts'negotiation and iteration of the differences in the initial plan align with the current complex and dynamic epidemic situation and are of great significance to the rapid formulation of plans to achieve effective prevention and control.

关键词： epidemic prevention and control group decision-making alternative ranking control policy