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Rosin modified aminated mesoporous silica adsorbed tea tree oil sustained-release system for improve synergistic antibacterial and long-term antibacterial effects
TTO antibacterial evaluation mesoporous silica rosin sustained release
2023/12/5
Tea tree oil, a natural antibacterial compound, cannot be used effectively because of its volatile nature. In this work, a biocompatible carrier was prepared and loaded with tea tree essential oil. Th...
A 1-h time interval between a meal containing iron and consumption of tea attenuates the inhibitory effects on iron absorption: a controlled trial in a cohort of healthy UK women using a stable iron isotope
iron bioavailability iron deficiency hepcidin polyphenols tea
2018/11/21
Background: Tea has been shown to be a potent inhibitor of nonheme iron absorption, but it remains unclear whether the timing of tea consumption relative to a meal influences iron bioavailability.
Effect of Microwave Technology on Some Quality Parameters and Sensory Attributes of Black Tea
hot drink microwave drying polyphenols antioxidant activity quality characteristics sensory analysis
2016/12/9
Although the quality of black tea mainly depends on the constituents and conditions of raw material, the manufacturing process also plays a significant role in obtaining high quality tea products. In ...
Delineation of Healthy and Diseased Tea Patches Using MXL and Texture Based Classification
Remote Sensing Geographic Information System (GIS) GLCM Texture
2015/12/18
Recently, a rapid decline in the quality of Indian tea production has been observed due to the old age of the plantations, disease and pests infestations and frequent application of pesticides and ins...
高功率TEA CO2激光器控制系统设计
TEA CO2激光器 DSP 控制系统 电磁干扰
2016/9/2
随着高功率TEA CO2激光器技术的快速发展，及其在工业加工、科学研究、航空航天等领域的广泛应用，对其自身控制系统也提出了更高的性能要求。针对所研制的高功率TEA CO2激光器，设计了一种基于DSP数字信号处理器技术的控制系统，分别从硬件、软件两方面对控制系统的核心单元做了详细的介绍；为了克服激光器在工作过程中产生的强电磁干扰，对控制系统采取了屏蔽箱体结构、电源滤波、安全接地、数字滤波、关键数据存...
TEA+DETA混合胺液脱除天然气中H2S性能优选
混合胺液 天然气 H2S
2015/9/15
运用小型反应釜及再生实验装置对三乙醇胺(TEA)+二乙烯三胺(DETA)混合胺液与N-甲基二乙醇胺(MDEA)+DETA混合胺液进行天然气中H2S吸收、再生实验,并对不同配比的TEA+DETA混合胺液进行实验。通过分析吸收负荷、吸收速率、再生率指标优选出较优的脱H2S胺液配比,并将其运用到工艺实验装置中。结果表明:TEA+DETA混合胺液与传统的MDEA+DETA混合胺液相比具有更优的H2S脱除性...
MAPPING OF TEA GARDENS FROM SATELLITE IMAGES -A FUZZY KNOWLEDGE-BASED IMAGE INTERPETATION SYSTEM
Automation Classification Fuzzy logic Image interpretation Land cover Mapping
2015/2/3
Detection and identification leading to interpretation and mapping of tea gardens from satellite images is the prerequisite for application of remote sensing technology to monitor and management of te...
大功率TEA CO2激光远场发散角评估方法
大功率TEA CO2激光 远场发散角 激光光斑 光束质量
2016/8/11
在大功率激光远距离定向传输中,远场发散角是衡量其性能的一个重要参量。大功率TEA CO2激光具有功率高、光束直径大等特点,常规手段无法准确测量其远场发散角。为解决该难题,提出了一种利用激光光斑尺寸拟合分析法来评估大功率TEA CO2激光的远场发散角。首先,从理论上推导大Fresnel数多模高斯激光束远场发散角,分析了影响激光束发散角的主要因素;然后,采用光斑烧蚀法试验测量近场(≤20 m)光斑数据...
Distribution patterns of polyphenols and alkaloids in instant coffee, soft and energy drinks, and tea
phytochemical profile phenolic compounds beverages antioxidants caffeine phenolic acids flavan-3-ols catechins flavones flavonols alkaloids
2014/2/24
A previously developed method of HPLC-DAD-Fl has been used for the determination of phytochemical profiles in different types of drinks: instant coffee, soft drinks, energy drinks, and different types...
激光重频对脉冲非稳腔TEA CO2激光远场传输特性的影响分析
重复频率 TEA CO2激光器 热畸变 光束质量
2016/9/1
为了研究TEA CO2激光重复频率对远场光束特性的影响，首先采用有限元方法计算了不同重复频率下反射镜的温度场和热变形分布，然后采用协方差矩阵法对镜面热变形进行了Zernike拟合，最后结合衍射的角谱传播理论和功率谱反演法分析了不同重频TEA CO2激光经过内光路热畸变作用后的远场光束特性。研究表明：在净吸收能量相同的情况下，随着重复频率的增大，反射镜的温度逐渐升高，热变形量逐渐增大，经过内光路热畸...
ESTIMATING BIOCHEMICAL PARAMETERS OF TEA (CAMELLIA SINENSIS (L.)) USING HYPERSPECTRAL TECHNIQUES
Agriculture Quality Hyper spectral Estimation Statistics
2014/4/29
Tea (Camellia Sinensis (L.)) is an important economic crop and the market price of tea depends largely on its quality. This research aims to explore the potential of hyperspectral remote sensing on pr...
A study was undertaken to assess the distribution behaviour of Dimethoate in tea leaf. Tea bushes were subjected to Dimethoate spray at recommended dose and double the recommended doses. The extractio...
Isolation and Applications of One Strain of Lactobacillus paraplantarum from Tea Leaves (Camellia sinensis)
Lactobacillus paraplantarum Tea Leaves
2016/6/1
The aim of the study was to identify the occurrence of lactic acid bacteria in tea leaves and examined the probiotic activity. Probiotics are live microorganisms that are similar to beneficial microor...
高功率TEA CO2激光器的光学谐振腔
TEA CO2激光器 光束发散角 光学谐振腔
2012/11/14
根据TEA CO2激光器工作的实际情况, 以高功率激光器的光束发散角、 模体积、 模式结构和输出功率为依据, 设计了几组不同曲率半径的全反射镜和不同透射率的输出反射镜, 并对激光工作物质的不同总气压和分气压进行实验研究. 结果表明, 经优化设计各项参数, TEA CO2激光器可达到数千瓦的高功率激光输出, 并将激光光束发散角控制在最小范围。
茶叶微波超声波耦合动态逆流浸提工艺（Combined Dynamic Countercurrent Extraction Technology with Microwave Ultrasonic-wave Extraction for Tea）
茶叶 微波 超声波 耦合 浸提
2010/12/29
应用设计的微波超声波耦合动态逆流浸提机，以水为溶剂，茶鲜叶为原料，进行了茶叶有效成分的浸提试验。研究了浸提功率、料液比和浸提时间3因素对茶叶主要有效成分浸提率的影响，并通过L9(34)正交试验设计，对浸提工艺进行优化。结果显示，该设备的最佳浸提工艺参数为：浸提时间6min(微波)+6min(超声波)，料液比1∶20，浸提功率1.0kW(微波)+1.0kW(超声波)。茶多酚、氨基酸、咖啡碱的...