人工智能在包装设计中的应用研究

随着人工智能技术的不断发展,其在包装设计领域的应用日益广泛。通过应用智能算法和机器学习等技术手段,对包装设计进行自动化优化,能够提高设计效率和质量。概述人工智能技术的内涵和原理,总结了人工智能在包装设计中的应用优势,探讨了人工智能在包装设计中的具体应用,分析了人工智能在包装设计中面临的挑战和策略,并对未来的发展前景和研究方向作了展望,以期对包装设计行业的发展具有积极意义。     

科技新材料在科普展馆中的应用和设计

随着科技不断发展,不断衍生出的科技新材料在各个领域已经发挥了巨大的作用。在这其中科普展馆已将对科技新材料进行了广泛的应用,在这些应用中科技新材料的发展为科普场馆的表现与设计方面都起到了至关重要的作用,顺应了科普展馆在未来的发展方向和趋势。文章主要对科技新材料在科普场馆中的应用和设计进行分析和探讨,首先对科普场馆中材料应用进行分析,同时认识到了科技新材料在科普展馆中的意义,此后又对科技新材料在科普展馆中的应用效果和科技新材料与展馆设计的关系进行了分析,最后认识到了科技新材料在科普展馆中应用影响以及展示设计中的应用,并以以英国南安普顿科技馆为例进行说明。     

油田用表面活性剂的应用及制备探讨

石油作为一种战略物资,在国民经济和国防应用中发挥着至关重要的作用。文章从油田用表面活性剂的结构特征和油田用表面活性剂的分类两个方面对油田用表面活性剂进行了概述,从一般油田用表面活性剂的应用和新型表面活性剂的应用两个方面对油田用表面活性剂的应用进行了详细阐述。通过对重烷基苯磺酸盐、木质素磺酸盐等表面活性剂的系统论述,对三次采油用表面活性剂的应用实例进行了探讨。     

板式厨柜应用PE热收缩包装膜技术的研究

对厨房家具生产企业引入聚乙烯热收缩包装膜技术的可能性和技术问题进行了分析。通过经验总结和包装试验,对PE热收缩膜包装技术在厨柜上的应用技术和应用效果进行了探讨。结合厨柜企业包装成本高的现状和板式厨柜的特点,对PE热收缩包装膜应用成本进行了分析。研究表明,在板式厨柜中应用PE热收缩包装膜技术是有一定的前景的。     

园林施工放线中全站仪的应用分析

通过对园林绿化工程中施工放线方法的比较分析,明确了传统园林防线方式,同时论述了全站仪在园林施工放线中的应用特点,明确了园林放线施工中全站仪应用的优势,并对全站仪的应用进行了细致的分析和探讨,为园林放线施工技术的完善和发展提供了经验。     

图像工程及在中国的研究状况和文献分布

文章对图像工程这一新学科的定义和内容作了介绍,对图像工程的理论和图像技术的应用给出了详细的分类。本文在此基础上就近五年我国图像工程有关重要文献作了统计和分析,概括了图像工程在我国的发展现状、研究趋势和应用范围,对从事图像工程研究和图像技术应用的人员提供信息和参考。     

仪表自动化在工业中的应用

随着科技的进步和社会的发展,仪表自动化在化工工业方面得到了越来越广泛的应用。对智能化工业应用以及网络化的工业应用进行了详细的介绍,最后对仪器设备的预防性维护方面进行了简要的分析和阐述。     

应力释放孔的应用实践

本文对应力释放孔在工程中的应用方案的探讨和应用,结合实际工程情况提出了相应的解决方案,对其实践提出了施工要点和监测要求。     

木质包装材料的发展现状和前景展望

介绍了国内外木质包装材料的应用现状和研究进展,总结了木材作为包装材料应用时存在的问题,并对人造板包装材料的应用前景作了阐述.     

在应用数学中引入数学建模思想的方法与分析

应用数学是纯粹数学的互补物,本文通过对应用数学特点的分析,阐述了在应用数学中引人数学建模思想的理论与方法,同时讨论了渗透数学建模思想的意义以及对应用数学改革的重要性。在应用数学中引人数学建模的思想可以极大提高学生的兴趣和教学的效果,拓展了应用数学的内涵。     

Encapsulation of cellulose chain into carbon nanotubes and boron nitride nanotubes

Encapsulation of cellulose chain into carbon nanotubes and boron nitride nanotubes was investigated to find out the possibility of band gap engineering in these nanotubes. The structural stability and the electronic properties of the zigzag carbon nanotubes and boron nitride nanotubes filled with cellulose chain were studied using density functional theory. It was found that encapsulation of cellulose chain into nanotubes was an exothermic process. The metallic properties of the carbon nanotubes did not change by cellulose encapsulation. The semiconductor and insulator nanotubes filled with cellulose were shown semiconducting properties. The energy band gap of these tubes was decreased by cellulose encapsulation. The results demonstrated the ability of band gap engineering through the encapsulation of cellulose chain into carbon nanotubes and boron nitride nanotubes.     

碳纳米管和镓掺杂碳纳米管场发射性能研究

采用催化热解方法分别 制备出碳纳米管和镓掺杂碳纳米管, 并利用丝网印刷工艺将其制备成纳米管薄膜. 对此薄膜进行低场致电子发射测试表明, 碳纳米管和镓掺杂纳米管开启电场分别为2.22和1.0V/μm, 当外加电场为2.4V/μm, 碳纳米管发射电流密度为400μA/cm², 镓掺杂纳米管发射电流密度为4000μA/cm². 可见镓掺杂碳纳米管的场发射性能优于同样条件下未掺杂时的碳纳米管. 对镓掺杂纳米管场发射机理进行了探讨.     

The creep behaviour of poly(vinylidene fluoride)/“bud-branched” nanotubes nanocomposites

The creep behaviour of poly(vinylidene fluoride) (PVDF)/multiwall carbon nanotubes nanocomposites has been studied at different stress levels and temperatures. To fine-tune the ability to transfer stress from matrix to carbon nanotubes, bud-branched nanotubes, were fabricated. The PVDF showed improved creep resistance with the addition of carbon nanotubes. However, bud-branched nanotubes showed a modified stress–temperature-dependent creep resistance compared with carbon nanotubes. At low stress levels and low temperatures, bud-branched nanotubes showed better improvement of the creep resistance than that of virgin carbon nanotubes, while at high stress levels and high temperatures, the virgin carbon nanotubes presented better creep resistance than that of bud-branched nanotubes. DSC, WAXD, and FTIR were employed to characterise the crystalline structures and dynamic mechanical properties were characterised by DMA testing. The Burgers’ model and the Findley power law were employed to model the creep behaviour, and both were found well describe the creep behaviour of PVDF and its nanocomposites. The relationship between the structures and properties was analysed based on the parameters of the modelling. The improved creep resistance for PVDF by the addition of nanotubes would benefit its application in thermoset composite welding technology.     

Carbon nanotubes linked with pitavastatin: synthesis and characterisation

The paper presents a study on functionalisation of multi-walled carbon nanotubes in the area of lattice defects and an attempt to bind the nanotubes with pitavastatin. Carbon nanotubes were synthesised by alcohol-chemical vapour deposition in the presence of the catalyst Fe-Co/MgO. The nanotubes were purified and the product was subjected to chemical functionalisation. Functional groups were introduced in the reaction of the purified nanotubes with thionyl chloride to obtain acidic chlorides linked to pitavastatin. The properties and structure of the nanotubes were analysed by FT-IR and Raman spectroscopies, transmission electron microscopy and liquid chromatography coupled with mass spectrometry. Photochemical stability of pitavastatin linked with carbon nanotubes has been found to be increased.     

Synthesis of boron nitride nanotubes from boron oxide by ball milling and annealing process

Boron nitride nanotubes were synthesized from boron oxide by high-energy ball milling and annealing method. The diameter of the nanotubes is in the range of 20-200 nm. The nanotubes show a bamboo-like structure and cylindrical-like structure under low magnification. The shorter bamboo nodes with distinct knots were observed for the bamboo-like nanotubes with larger diameters and the knots can also occasionally be observed in the cylindrical-like BN nanotubes with smaller diameters under high magnification. Al and Si were found to be catalytic materials responsible for the formation of BN nanotubes besides the metallic particles containing Fe, Ni and Cr.     

B---C---N nanotubes prepared by a plasma evaporation method

B---C---N nanotubes prepared by a flush evaporation method using a d.c. arc plasma were mainly characterized by transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS). The nanotubes obtained were divided into three types, such as carbon-, boron nitride-, or carbon nanotubes surrounded with boron nitride nanotubes. These types of nanotubes were obtained at temperatures higher than approximately 3000 K; however, these were not formed at temperatures lower than approximately 3000 K. On the other hand, nanocapsules were formed at all the temperature regions, but the nanocapsules obtained were smaller at lower temperatures. The addition of nickel produced a bundle of single walled carbon nanotubes and boron nitride nanocapsules surrounding nickel particles. Based on the experimental data obtained, the formation mechanisms of both nanotubes and nanocapsules were discussed.     

An electrokinetic route to rapid synthesis of nickel hydroxide and nickel oxide nanotubes

An electrokinetic route was developed for the synthesis of Ni(OH)2 nanotubes in the nanochannel of anodic alumina oxide (AAO) template. The nanotubes in the template were then converted to NiO nanotubes by calcination in air at 300 degrees. Uniform ordered nanotubes were obtained after selecting proper experimental conditions, such as the ionic concentration, the reaction time and the kind of nickel salts. X-ray diffraction (XRD) analysis indicated that the as-prepared Ni(OH)2 nanotubes were crystalline. Thermogravimetric analysis (TGA) was employed to determine the correlation between temperature and weight lose of the nanotubes. The transmission electron microscope (TEM) and scanning electron microscope (SEM) were used to characterize the morphology and structure of the nanotubes.     

纳米碳管/环氧树脂复合材料的制备及力学性能

报道了利用催化裂解法制备的纳米碳管合成环氧树脂复合材料的技术及工艺条件。利用透射电子显微镜(TEM)对制备的复合材料进行观察表征;通过拉伸及压缩实验对纳米碳管/环氧树脂复合材料的力学性能进行了测试。实验结果表明:纳米碳管的加入可以明显地改变环氧树脂基体材料的力学性能。      

含碳纳米管的聚合物复合材料研究进展

介绍了近年来含碳纳米管的聚合物复合材料的研究状况,对直接共混法、原位聚合法和溶胶-凝胶法三种制备含碳纳米管聚合物复合材料的工艺进行了比较分析,指出了含碳纳米管聚合物复合材料研究中面临的一些问题,并探讨了该类复合材料的发展方向。     

Carbon nanotubes growth on silicon nitride substrates

Carbon nanotubes were synthesized on silicon nitride substrates by thermal chemical vapour deposition using an iron precursor catalyst. The nanotubes were characterized by AFM, FESEM, TEM and micro-Raman spectroscopy. The surface topography of the substrate, dense and flat or porous and rough, controlled the catalyst distribution and carbon nanotubes growth. Flat surfaces led to the synthesis of single-walled carbon nanotubes, whereas the porous ones promoted the growth of multi-walled carbon nanotubes of 60 nm diameter. These nanotubes preferentially grew on the porous sites, exhibiting a good substrate-nanotube interface.