检索结果-南通市图书馆

Functional butter for reduction of consumption risk and improvement of nutrition

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Grain & Oil Science and Technology 2023年第4期6卷 172-184页

作者： Shujie Cheng Wei Li Shimin Wu Yuxing Ge Caiyun Wang Siyu Xie Juan Wu Xiangke Chen ling-zhi cheong Department of Food Science and Technology School of Agriculture and BiologyShanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China National Center of Technology Innovation for Dairy Hohhot 010000China School of Agriculture Food and Ecosystem SciencesThe University of MelbourneParkville 3010VictoriaAustralia

Butter has become renowned among consumers because of its exceptional flavor and ***,conventional butter is deemed“unhealthy”due to its high concentration of saturated fats and cholesterol,which are linked to the development of cardiovascular *** the health benefits of butter has become an essential topic of research in the butter *** review focuses on researches that have made improvements to functionality of butter,including the changes in fatty acid composition,cholesterol reduction,incorporation with bioactive substances,development of new *** reduction of saturated fatty acids and cholesterol in butter can help reduce the risk of disease from eating *** addition,incorporating probiotics or natural plant extracts can achieve nutritional functions such as balancing intestinal flora,enhancing nutrient absorption,and increasing the body’s antioxidant *** substitute products can be based on new vegetable oils,insect fats or microbial fats,which cater to the consumer demands for low-calorie butter while reducing the environmental impact that results from butter *** review summarizes the effects and characteristics of various improvement methods and proposes some possible directions for future development of functional butter.

关键词： Improved butter Butter substitute Food function Nutrition Bioactive ingredient

Induced pluripotent stem cell-related approaches to generate dopaminergic neurons for Parkinson's disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第11期20卷 3193-3206页

作者： ling-Xiao Yi Hui Ren Woon Genevieve Saw Li Zeng Eng King Tan zhi Dong Zhou National Neuroscience Institute Singapore Nanyang Technology University Singapore Department of Neurology Singapore General HospitalSingapore Signature Research Program in Neuroscience and Behavioral Disorders Duke-NUS Medical SchoolSingapore

The progressive loss of dopaminergic neurons in affected patient brains is one of the pathological features of Parkinson's disease,the second most common human neurodegenerative *** the detailed pathogenesis accounting for dopaminergic neuron degeneration in Parkinson's disease is still unclear,the advancement of stem cell approaches has shown promise for Parkinson's disease research and *** induced pluripotent stem cells have been commonly used to generate dopaminergic neurons,which has provided valuable insights to improve our understanding of Parkinson's disease pathogenesis and contributed to anti-Parkinson's disease *** current review discusses the practical approaches and potential applications of induced pluripotent stem cell techniques for generating and differentiating dopaminergic neurons from induced pluripotent stem *** benefits of induced pluripotent stem cell-based research are *** dopaminergic neuron differentiation protocols from induced pluripotent stem cells are *** emerging three-dimension-based brain organoid models compared with conventional two-dimensional cell culture are ***,limitations,challenges,and future directions of induced pluripotent stem cell–based approaches are analyzed and proposed,which will be significant to the future application of induced pluripotent stem cell-related techniques for Parkinson's disease.

关键词： dopaminergic neurons induced pluripotent stem cells Parkinson's disease stem cell approaches

Kinetics of Acicular Ferrite Transformation in Weld Metal

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2001年第1期8卷 34-36页

作者： TIAN zhi-ling Cent Iron & Steel Res Inst Beijing 100081 Peoples R China Petr Univ Shandong 257061 Peoples R China Tianjin Univ Tianjin 300072 Peoples R China

Acicular Ferrite(AF) is beneficial in welds because it provides a tough and strong ***,much works have been done in the study of the effect of alloying elements and welding conditions aimed at obtaining more AF in the weld ***,the knowledge about the nature of AF is limited due to the lack of kinetics *** this paper,the kinetic curves of AF transformation in an X65 weld metal were established by means of welding thermal simulation *** results showed that AF transformation is a typical diffusion process of nucleation and growth with incubation *** transformation in weld metal obeys the relationship described by JMA *** effect of welding heat input was also studied.

关键词： weld metal acicular ferrite kinetics pipe steel

Static and dynamic studies of adsorption by four macroporous resins to enrich oridonin from Rabdosia rubescens

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第4期34卷 151-158页

作者： ling Meng Xia Gui zhi Yun College of Chemical Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine Lunan Pharmaceutical Group Co.Ltd.Linyi 273400China

Oridonin,one of the active ingredients in Rabdosia rubescens(***),has been reported to induce cell apoptosis and cell cycle arrest in many *** extraction methods tend to result in unsatisfied enrichment and poor quality of oridonin present in a given *** paper aims to evaluate the performance and separation characteristics of four different macroporous resins to arrive at the most suitable methodology for the isolation and purification of highquality *** absorption kinetics,thermodynamic and dynamic adsorption were ***20 was selected for further study due to its high adsorption capacity of 32 mgg 1 and desorption ratio with 98.5%.The pseudosecondorder model was considered to be the most suitable for kinetic results,and Langmuir model was chosen to better describe the absorption *** optimum conditions(flow rate of 4 ml min 1,bed depth with 6 cm and initial concentration of 2.15 mg·ml^1),the effective content of oridonin increased from 33.9%to 79.1%in the dry extract with a recovery of 81%and the purity of oridonin improved from 76%to 93%.The results confirm that HP20 provides an efficient method to purify most oridonin from ***.

关键词： Rabdosia rubescens Oridonin Macroporous resin Adsorption Kinetics Thermodynamics

Thickness and sp3 bond modulation of（Ti/tetrahedral amorphous carbon）_n multilayer coatings

在线全文

学校读者我要写书评

暂无评论

Tungsten 2025年第1期 152-160页

作者： zhi-Jun Xie Jia-Lin Li ling Gong Xiang-Li Zhong Hong-Jia Song Jin-Bin Wang National-Provincial Laboratory of Special Function Thin Film Materials School of Materials Science and Engineering Xiangtan University

The durability of wear-resistant tetrahedral amorphous carbon（ta-C） coatings is intimately linked to their thickness and the concentration of *** enhance the lifespan of the coatings,we have prepared a multilayer coating consisting of alternating layers of Ti and ta-C,denoted as（Ti/ta-C）_n,using arc ion plating.A multi-layer structure in conjunction with stage cooling is employed to enhance the thickness and promote *** results indicate that the ID/IGvalue,representing the ratio of the intensity of the D peak to that of the G peak in Raman spectroscopy,decreases from 0.85 when no stage cooling is applied to 0.35 when stage cooling is employed,suggesting an enhancement in the fraction of sp3bonds within the *** obtained（Ti/ta-C）_n multilayer coating without peeling off has a maximum thickness of 1.14 μm,which is almost double that of the ta-C coating single layer *** the same time,the coating has a low coefficient of friction,down to 0.069,and maintains excellent friction properties with a wear rate of 3.4×10-6mm3·N-1·*** results conclusively show that the preparation technology can enhance both thickness and sp3bonding in ta-C coatings,significantly expanding their utility across tools,molds,and precision engineering components.

关键词：

Numerical Simulations of Nonlinear Dynamics of Electron Cyclotron Maser with a Straight Beam

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2011年第11期28卷 222-223页

作者： KONG ling-Bao HOU zhi-ling School of Science Beijing University of Chemical TechnologyBeijing 100029

An electron cyclotron maser based on anomalous Doppler effect(ADECM)with an initially axial beam velocity is considered,and the nonlinear equation of beam-wave interaction is *** the numerical methods,the nonlinear dynamics of the ADECM is *** is shown that the saturated interaction efficiency of the ADECM approaches 90%and the interaction length for the saturated efficiency spans about 5–20 *** results may be of importance for designing a compact device in applications in microwave generations or microwave heating of ceramic laminates.

关键词： microwave saturated beam

Solving viscoelastic problems with cyclic symmetry via a precise algorithm and EFGM

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mechanica Sinica 2006年第2期22卷 170-176页

作者： zhi Han Haitian Yang ling Liu State Key Lab of Structural Analysis of Industrial Equipment Department of Engineering Mechanics Dalian University of Technology Dalian 116024 China

The paper combines a self-adaptive precise algorithm in the time domain with Meshless Element Free Galerkin Method （EFGM） for solving viscoelastic problems with rotationally periodic symmetry. By expanding variables at a discretized time interval, the variations of variables can be described more precisely, and iteration is not required for non-linear cases. A space-time domain coupled problem with initial and boundary values can be converted into a series of linear recursive boundary value problems, which are solved by a group theory based on EFGM. It has been proved that the coefficient matrix of the global EFG equation for a rotationally periodic system is block-circulant so long as a kind of symmetry-adapted reference coordinate system is adopted, and then a partitioning algorithm for facilitating parallel processing was proposed via a completely orthogonal group transformation. Therefore instead of solving the original system, only a series of independent small sub-problems need to be solved, leading to computational convenience and a higher computing efficiency. Numerical examples are given to illustrate the full advantages of the proposed algorithm.

关键词： EFGM Cyclic symmetry Precise algorithm Viscoelastic problem

Effect of Ellipsoidal Particle Shape on Tribological Properties of Lubricants Containing Nanoparticles

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2024年第4期37卷 231-242页

作者： ling Pan zhi Li Yunhui Chen Guobin Lin School of Advanced Manufacturing Fuzhou UniversityQuanzhou 362251FujianChina School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou 350108FujianChina

Adding nanoparticles can significantly improve the tribological properties of ***,there is a lack of understanding regarding the influence of nanoparticle shape on lubrication *** this work,the influence of diamond nanoparticles(DNPs)on the tribological properties of lubricants is investigated through friction ***,the friction characteristics of lubricants regarding ellipsoidal particle shape are investigated using molecular dynamics(MD)*** results show that DNPs can drastically lower the lubricant's friction coefficientμfrom 0.21 to *** shearing process reveals that as the aspect ratio(α)of the nanoparticles approaches 1.0,the friction performance improves,and wear on the wall *** the same time,the shape of the nanoparticles tends to be *** 0.85≤α≤1.0,rolling is ellipsoidal particles'main form of motion,and the friction force changes according to a periodic sinusoidal *** the range of 0.80≤α<0.85,ellipsoidal particles primarily exhibit sliding as the dominant movement ***αdecreases within this range,the friction force progressively *** friction coefficientμcalculated through MD simulation is 0.128,which is consistent with the experimental data.

关键词： Molecular dynamics simulation Nanoparticle additives Ellipsoidal particles Tribological properties

Interfacial phase competition induced Kondo-like effect inmanganite-insulator composites

在线全文

学校读者我要写书评

暂无评论

Frontiers of physics 2016年第6期11卷 129-133页

作者： ling-Fang Lin ling-zhi Wu Shuai Dong Department of Physics Southeast University Nanjing 211189 China School of Geography and Biological Information Nanjing University of Posts and Telecommunications Nanjing 210046 China

A Kondo-like effect, namely, the upturn of resistivity at low temperatures, is observed in perovskite manganite when nonmagnetic insulators are doped as secondary phase. In this paper, the low-temperature resistivity upturn effect has been argued to originate from interfacial magnetic phase reconstruction. Heisenberg spin lattices have been simulated using the Monte Carlo method to reveal phase competition around secondary phase boundary, namely, manganite-insulator boundary that behaves with a weak antiferromagnetic tendency. Moreover, the resistor network model based on double-exchange conductive mechanism reproduces the low-temperature resistivity upturn effect. Our work provides a reasonable physical mechanism to understand the novel transport behaviors in microstructures of correlated electron systems.

关键词： manganite Kondo-like effect manganite-insulator composites phase competition 75.47.Lx 75.47.Gk 73.63.-b