若干种川产浓香型白酒的微观形态研究

名优浓香型白酒所含呈香呈味物质在乙醇-水体系中形成了颗粒状微观形态。川产浓香型普通白酒具有如何微观形态呢？采用扫描探针显微镜对五种川产浓香型白酒做扫描,做出了AFM扫描图。首次观察到了五种白酒的在AFM扫描图中不同微观形态。     

扫描探针显微镜对白酒微观状态观察的探讨

本文探索了扫描探针显微镜对白酒微观状态的观察,在对50%Vol乙醇水溶液、39.五粮液、52.剑南春AFM扫描图观察中,明显现察到白酒中呈香呈味物质形成的微观状态,证实了扫描探针显微镜用于白酒微观状态的研究有良好前景.     

几种川产浓香型白酒的微观形态研究

名优浓香型白酒所含呈香呈味物质在乙醇-水体系中形成了颗粒状微观形态。采用扫描探针显微镜对5种川产浓香型白酒进行扫描,得出了样品白酒的AFM扫描图。首次观察到了5种白酒在AFM扫描图中的不同微观形态。不同厂家所用原料不同、生产条件不同、工艺和勾兑措施存在差异,产品质量也不同,因而所含呈香呈味微量物质在乙醇-水体系中形成的微观形态也不同．     

不同度数剑南春成品酒的微观形态研究

白酒中的呈香呈味物质在白酒中形成了微观形态.剑南春酒是中国名优质白酒,剑南春酒中呈香呈味物质具有怎样的微观形态.利用扫描探针显微镜,做出了三种不同度数剑南春成品酒的AFM扫描图,观察到剑南春成品酒的微观形态.     

动态力显微镜DFM在白酒胶体研究中的应用

利用扫描探针显微镜SPM中的DFM功能,对几种中国名优白酒的微观形貌形态进行扫描分析.对白酒经风干后的胶粘态进行DFM分析后发现有大小不一的类圆形胶体颗粒.不同浓度的白酒以及不同品种的白酒平均粒径不同.对白酒胶体颗粒进行三维形貌分析,发现胶体颗粒间距分布比较均匀,无针状凸起,属于典型胶体颗粒形貌.最后通过平均粒径解析软件对白酒胶体颗粒进行了粒径统计,得到不同品种白酒的胶体粒径分布范围.     

浓香型白酒微观形态研究

白酒口感风味与其所含呈香呈味微量成分有关,它们形成怎样的微观形态。本文采用扫描探针显微镜,扫描了浓香型白酒的AFM图的颗粒形态,探讨了呈香呈味物质和乙醇水形成颗粒状微观形态可能。     

扫描探针显微镜对浓香型成品酒的微观形态探讨

利用扫描探针显微镜的AFM功能,对几种优质浓香型成品白酒的微观形态作了探讨.从AFM扫描图可以看到浓香型成品白酒中的呈香呈味物质成分呈近似圆球状的颗粒形态,并且大小分布错落有致.     

几种优质白酒的微观形态

用扫描探针显微镜的AFM功能观察了六种优质白酒的微观形态。从AFM扫描图中,可以看到不同优质白酒的呈香呈味微量化学成分形成的各不相同的颗粒形态,这些颗粒从大小分析都属于溶胶的范围。     

白酒微观形态形成机理探讨

用扫描探针显微镜AFM功能对白酒微观颗粒形态进行观察,探讨白酒微观形态形成机理。对50％vol乙醇水溶液以及添加不同化学成分的50％vol乙醇水溶液作AFM扫描图。结果表明,在白酒酒体中呈现的微观图形变化过程中,微小颗粒图形是由添加的化学成分引起的。     

枸杞泡酒的微观形态研究

用扫描探针显微镜AFM功能能观察到白酒的微观颗粒状态。通过在白酒中浸出的枸杞多糖和其他成分,观察白酒中微量化学成分所形成的微观形态变化。     

颜色技术原理及在印染中的应用(十三)第九篇分光光度测色仪器

物理分光光度测色方法主要有机械扫描式和电子扫描式两大类，机械扫描式分光光度测色仪属传统方法，精度虽高但速度慢；电子扫描式分光光度测色仪则速度快、效率高，因而更适于工业应用。     

差示扫描量热技术及其在大豆蛋白分析中的应用

主要介绍了热分析技术，重点分析了差示扫描量热仪的原理、结构、输出信息以及影响测量结果的主要因素。并举例说明了差示扫描量热技术在大豆蛋白分析中的应用。     

用等离子改性方法提高非织造材料功能

介绍一种运用等离子处理来改善非织造材料表面性能的新方法。采用聚酯(PET)非织造材料作为处理基材,通过扫描探针显微镜(SPM)、扫描电子显微镜(SEM)和环境扫描电子显微镜(ESEM)对非织造材料进行微观结构的观察,得到PET非织造材料表面形貌和化学成分在处理前后发生变化的结果,进而说明了等离子改性在非织造材料表面的改性处理中具有广阔的前景。     

物理化学方法在淀粉研究中应用

该文介绍物理化学方法:差示扫描量热技术(DSC),扫描电子显微镜(SEM),核磁共振 (NMR)和X-射线衍射(XRD)等技术在研究淀粉结构,糊化,老化和玻璃化转变中应用。     

基于毫米波扫描技术的人体点云模型测量方法

三维扫描技术极大地促进了服装企业的现代化,通过三维扫描技术可以获取人体的三维信息,进而进行人体测量。相比其他三维扫描技术,毫米波扫描技术受人体着装的影响较小,避免了在扫描时被测人员必须穿着特定紧身衣的缺点,有效突破了现有三维扫描技术对着装的限制。在此基础上,对毫米波点云进行计算和测量,提出了基于投影和姿势修正的人体测量算法进行缺失数据的拟合,实现基于毫米波点云的人体特征参数测量与计算,并最终验证了基于毫米波扫描技术的人体测量可以在整体上较好地实现人体测量,具有重要的理论研究和实用价值。     

高压均质对玉米淀粉机械力化学效应研究

以玉米淀粉为原料,通过扫描电镜(scanning electron microscope,SEM)、X-射线衍射(X-ray diffraction,XRD)、激光共聚焦显微镜(confocal laser scanning microscopy,CLSM)、快速黏度分析仪(rapid visco analyser,RVA)、差示扫描量热仪(differential scanning calorimetry,DSC)、偏光显微镜(polarizing microscope,PLM)等手段研究高压均质处理对玉米淀粉微观结构及理化性质的影响,揭示高压均质对玉米淀粉机械力化学效应。结果表明,高压均质对淀粉颗粒的无定形区、结晶区产生很强的机械力化学作用,推断淀粉颗粒内部依次发生了聚集和团聚效应。     

Thermal-morphological characterisation of starch from peach-palm (Bactris Gasipaes kunth) fruit (Pejibaye)

The objective of this study was to characterize the starch of the peach-palm fruit. The starch was subjected to thermogravimetric analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy, x-ray diffraction, and scanning electron microscopy. The thermogravimetric analysis showed 76.62% of the weight loss in the temperature range from 251.7 to 380.6 ºC. The peak in differential scanning calorimetry was obtained at 70.0 ^ºC. Fourier transform infrared spectroscopy were obtained with a wavelength band of 528 to 3421 cm^?1. The x-ray diffraction corresponded to C-type crystals. The granule sizes ranged from 1.60 to 8.48 μm.     

Probe microscopies: feeling their way

The invention of the scanning tunnelling microscope (STM) in the early 1980s revolutionized the field of microscopy. The STM is the first of a growing family of probe microscopes which image surfaces by scanning them with a sharp probe, measuring some form of interaction between the probe and the surface. The invention of the STM was closely followed by the development of the scanning force microscope (SFM). Since their inception, scanning probe microscopes have had an obvious appeal to biologists and biophysicists. Both techniques are capable, under appropriate conditions, of obtaining atomic resolution images of suitable surfaces. Images can be obtained under gaseous or liquid environments, offering the prospect for studying biological systems under ‘native’ or ‘physiological’ conditions. Because of its detection mechanism the STM is largely restricted to the study of interfaces or individual biopolymers and their interactions. However, the potential magnification range achievable with the SFM spans the ranges covered by both light and electron microscopes. Examples of the use of scanning probe microscopes will be given in areas relevant to food and agriculture, and potential applications of the microscopes will be discussed.     

Consumer experience of 3D body scanning technology and acceptance of related e-commerce market applications in Saudi Arabia

Abstract

This research paper explores Saudi Arabian female consumers’ experiences using 3D body scanning technology and their level of acceptance of possible market applications of this technology to adopt for apparel online shopping. Data was collected for 82 women after being scanned then viewed a short video explaining three possible scenarios of 3D body scanning applications, which include size prediction, customization, and virtual try-on, before completing the survey questionnaire. Although respondents have strong positive responses towards the scanning experience, the majority were concerned about their privacy during the scanning process. The results indicated that size prediction and virtual try on had greater market application potential and a higher chance of crossing the gap based on consumer interest. The results of the study also indicated a strong positive correlation between respondents’ concern with inability to try on apparel products in online environments and their willingness to use the 3D possible market applications.