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红茶酥加工工艺优化及品质评价

南方农业学报 2024年第1期55卷 189-198页

作者：廖珺苏有健陈琴张永利孙宇龙方雅各陶涛安徽省农业科学院茶叶研究所安徽黄山245000 安徽粮食工程职业学院食品生物系安徽合肥230012

【目的】优化红茶酥加工工艺,并对其品质进行评价,为红茶酥及红茶中式糕点产业化开发提供科学依据。【方法】以超微红茶粉为原料制作红茶酥,采用感官评定法通过单因素试验结合正交试验优化工艺条件,并对加工的红茶酥进行功能成分、贮藏... 详细信息

【目的】优化红茶酥加工工艺,并对其品质进行评价,为红茶酥及红茶中式糕点产业化开发提供科学依据。【方法】以超微红茶粉为原料制作红茶酥,采用感官评定法通过单因素试验结合正交试验优化工艺条件,并对加工的红茶酥进行功能成分、贮藏性能和消化特性方面的品质评价。【结果】影响红茶酥感官评分的主次因素排序:超微红茶粉添加量>烘烤温度>烘烤时间,3个因素对红茶酥感官评分均有极显著影响(P茶褐素>茶红素>茶黄素>氨基酸>茶多酚。与普通酥饼相比,红茶酥具有更强的抗氧化活性,当贮藏至第16 d时,过氧化值(0.26 g/100 g)和酸价(5.1 mg/g)才超国家标准规定的上限值[过氧化值(以脂肪计)≤0.25g/100g、酸价(以脂肪计)(KOH)≤5mg/g];同时,红茶酥体外抗淀粉消化能力明显增强,其中抗消化淀粉含量升高68.57%,快消化淀粉含量降低7.49%,慢消化淀粉含量降低20.29%;红茶酥血糖生成指数(66.98)明显降低,比普通酥饼(79.81)降低16.08%。【结论】通过优化后的加工工艺研制的红茶酥感官品质和功能成分保留率均较高,且具有较强的贮藏性能和消化特性,该工艺可在实际生产中推广应用。

关键词：红茶酥加工工艺感官评定功能成分贮藏性能消化特性

Gas compression and likely triggered star formation in the infrared bubble N107

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Research in Astronomy and Astrophysics 2018年第10期18卷 49-64页

作者： Hao Li Jin-Zeng Li Jing-Hua Yuan ya-fang Huang Zhi-Yuan Ren National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Science University of Chinese Academy of Sciences

The expansion of HII regions can regulate the evolution of their natal clouds and the star for-mation therein. Infrared dust bubbles, which are frequently associated with HII regions, are ideal labora-tories to test whether impulse（s） driven by the expanding bubbles enhances or suppresses star-formation. In this work, we present a comprehensive study of a 20-pc scale infrared bubble N107 to reveal the com- pression of the neutral gas and associated star-forming activities. We obtain column density （NH2） and dust temperature （Tdust） maps via fitting modified blackbodies to multi-band far-infrared Herschel data. The shell structure can be recognized on the column density map. The molecular gas along the rim of N107 fragments into 94 dense clumps at an angular resolution of 18＂. Besides, based on the GLIMPSE point source catalog, we have identified 228 young stellar objects （YSOs） which are categorized into 55 Class I objects, 127 Class II objects and 46 transition disks （TDs）. The 94 clumps and 55 Class I type YSOs are mainly distributed along the shell, which may suggest triggered star formation exists in N107. In addition, analysis of NH2 probability density functions （PDFs） helps us reveal the condition of natal clouds. The two lognormal profiles of PDFs suggest that the surrounding molecular gas has been compressed due to expansion of the bubble. This compression may trigger the star formation process. Moreover, we find the shape of the PDFs changed after removing the background. Taken together, this big bubble seems to compress the surrounding gas and strongly regulate star formation therein.

关键词： ISM HII regions - ISM clouds - stars formation - ISM structure - methods observational

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温伟强辨脉论治高尿酸血症经验

江西中医药 2024年第7期55卷 28-31页

作者：解金枝刘玉玲方亚温伟强深圳市南山区医疗集团总部广东深圳518052

高尿酸血症患者越来越多,但对其防治仍未重视。温伟强认为无症状性高尿酸血症的病因病机为脾肾阳虚影响运化及分清泌浊功能,导致寒湿痰瘀内生,湿郁久化热,致湿热痰瘀内阻。因痰、湿、瘀胶结于内,伏藏留恋,故不易清除。因无症状,辨证较难... 详细信息

高尿酸血症患者越来越多,但对其防治仍未重视。温伟强认为无症状性高尿酸血症的病因病机为脾肾阳虚影响运化及分清泌浊功能,导致寒湿痰瘀内生,湿郁久化热,致湿热痰瘀内阻。因痰、湿、瘀胶结于内,伏藏留恋,故不易清除。因无症状,辨证较难,惟脉可反映机体情况,故主张以脉诊论治。若脉迟、缓、涩,则辨为寒湿痰瘀内伏,治宜暖脾固肾、除湿豁痰、活血透邪;若脉数、疾、促,则辨为湿热痰瘀内伏,治宜健脾益肾、除湿豁痰、凉血透邪。以辨脉论治、扶正透邪、托毒清伏,多获良效。

关键词：高尿酸血症临证经验辨脉论治

自动矿物分析技术在岩矿稀有金属元素鉴定中运用浅析

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世界有色金属 2024年第12期 220-222页

作者：刘亚芳张悦马梦玲程琳河北省区域地质调查院(河北省地学旅游研究中心) 河北廊坊065000

稀有金属元素在高科技行业中的广泛应用使其成为全球矿产资源开发的重要目标。然而,这些元素通常以微量存在于岩矿中。因此,需要高度精确的分析技术来确定其存在和分布。传统的岩矿分析方法需要耗费大量时间和劳动力,而自动矿物分析技... 详细信息

稀有金属元素在高科技行业中的广泛应用使其成为全球矿产资源开发的重要目标。然而,这些元素通常以微量存在于岩矿中。因此,需要高度精确的分析技术来确定其存在和分布。传统的岩矿分析方法需要耗费大量时间和劳动力,而自动矿物分析技术的引入可以加速这一过程,提高了分析的准确性。本文主要就自动矿物分析技术在岩矿稀有金属元素鉴定中的运用进行探讨,旨在提高矿产资源开发和科学研究的应用前景。

关键词：自动矿物分析技术岩矿稀有金属元素鉴定探讨

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温伟强从脾肾阳虚论治风湿性多肌痛经验

中医药临床杂志 2024年第6期36卷 1037-1041页

作者：方亚刘玉玲解金枝温伟强深圳市南山区医疗集团总部广东深圳518052

风湿性多肌痛患者常以快速解决“颈、肩、骨盆带肌的晨僵、疼痛”为首要诉求,病情反复发作,严重影响患者身心健康。温伟强主任医师认为该病核心病机为脾肾阳虚,肾阳虚则无以充养温煦筋骨,脾虚失健运,气血不足,四肢百骸无以濡养,“不荣... 详细信息

风湿性多肌痛患者常以快速解决“颈、肩、骨盆带肌的晨僵、疼痛”为首要诉求,病情反复发作,严重影响患者身心健康。温伟强主任医师认为该病核心病机为脾肾阳虚,肾阳虚则无以充养温煦筋骨,脾虚失健运,气血不足,四肢百骸无以濡养,“不荣则痛”;脾升胃降为一身气机升降之枢,脾运化水液失职,内生痰湿,痰湿阻络;脾失健运,肝失疏泄,气滞血瘀,脉络瘀阻而为痹;日久则痰湿瘀潜伏于内,为病情反复发作之根源。治疗上重视透邪之法,以清伏邪,治以益肾健脾、活血透邪,临床疗效显著。

关键词：风湿性多肌痛益肾健脾活血透邪名医经验温伟强

Individual-based simulation of the diffusion process of Eupatorium adenophorum

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Forestry Studies in China 2013年第1期15卷 49-55页

作者： ya-Qian fang Jin-Yong yaNG Qing ZHANG School of Sciences Beijing Forestry University

In order to investigate the diffusion patterns of Eupatorium adenophorum, this study uses a computer to simulate various plant diffusion processes under different environments. The study develops binary cellular automata as a framework reflecting the growth and semination of plants by the change of cellular state and transition function. This model allocates 16 integers, namely 1 to 16, to indicate a life history of plant starting from seed. In each iteration （a year）, Monte-Carlo simulation is applied to decide whether an individual survives into the next year, the probability of which is estimated from previous literature. If a plant survives youth, mature or senile period, its propagation will also be considered and short-tailed dispersal kernel was employed. Applying this basic model, this study also simulates the diffusion process of E. adenophorum under four typical ecological environments. Examining the age structure of the four populations, we found that, although with significantly different numbers of plants left, most individuals were in the infancy period. Besides, their dispersal velocity showed different periodic law. These observations provided reasonable suggestions on what control strategies to be taken respectively.

关键词： Eupatorium adenophorum binary cellular automata short-tailed dispersal kernel age structure velocity of front line

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鸡根标准汤剂提取工艺优化及其质量标准建立

中成药 2024年第6期46卷 1773-1781页

作者：杨国春杨亚芳徐素娥柯瑾陈凌云侯安国金文彬云南中医药大学中药学院云南昆明650500 云南省高校外用给药系统与制剂技术研究重点实验室云南昆明650500

目的优化鸡根标准汤剂提取工艺,并建立其质量标准。方法在单因素试验基础上,以浸泡时间、加水量、一煎时间为影响因素,3,6′-二芥子酰基蔗糖含量、出膏率的综合评分为评价指标,响应面法优化提取工艺。测定3,6′-二芥子酰基蔗糖含量及转... 详细信息

目的优化鸡根标准汤剂提取工艺,并建立其质量标准。方法在单因素试验基础上,以浸泡时间、加水量、一煎时间为影响因素,3,6′-二芥子酰基蔗糖含量、出膏率的综合评分为评价指标,响应面法优化提取工艺。测定3,6′-二芥子酰基蔗糖含量及转移率,建立HPLC特征图谱,进行聚类分析、主成分分析和正交偏最小二乘判别分析。结果最佳条件为浸泡时间60 min,加水量(12+11)倍,煎煮时间(47+20)min,综合评分为97.98分。15批标准汤剂平均出膏率为14.182%,转移率为20.468%;其特征图谱中有6个共有峰,相似度均大于0.9(除S4、S8外)。各批标准汤剂聚为2类,3种主成分累积方差贡献率达91.4%,峰2、6为质量标志物。结论该方法精密稳定,重复性好,可用于鸡根标准汤剂的制备及质量控制。

关键词：鸡根标准汤剂提取工艺质量标准响应面法 HPLC特征图谱聚类分析主成分分析正交偏最小二乘判别分析

Effects of U0126 on growth and activation of mitogen-activated protein kinases in Aspergillus fumigatus

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Chinese Medical Journal 2013年第2期126卷 220-225页

作者： MA Dong-mei JI ya-juan yaNG fang LIU Wei WAN Zhe LI Ruo-yu Department of Dermatology Peking University First HospitalResearch Center for Medical Mycology Peking University Beijing100034 China

Background Invasive aspergillosis （IA）, which is mainly caused by Aspergillus fumigatus （A. fumigatus）, is a major cause of morbidity and mortality in immunocompromised patients. Despite considerable progress in currently available antifungals the mortality still remains high in critically ill patients. U0126 which is a highly selective inhibitor of MEK1 and MEK2 in the RAF/MEK/ERK pathway in mammalian cells has been demonstrated to have an anti-proliferative role in cancer cells. The purpose of this study was to explore the role of U0126 on growth inhibition and activation of mitogen-activated protein kinases （MAPKs） in A. fumigatus. Methods Germination percentage and hyphae growth in A. fumigatus treated with U0126 were observed and compared with untreated controls. Western blotting analysis was used to detect changes in activation of SakA, MpkA and MpkB. Results U0126 inhibited germination and hyphae growth in A. fumigatus and enhanced the phosphorylation of SakA and MpkA under oxidative stress. U0126 at 10 pmol/L did not block the activation of MpkB during nitrogen starvation stress. Conclusion U0126 shows promise as an antifungal candidate and the MAPK pathway may be a possible antifungal drug target for A. fumigatus.

关键词： Aspergillus fumigatus protein kinase inhibitors mitogen-activated protein kinases

Spectroscopic study of globular clusters in the halo of M31 with the Xinglong 2.16 m telescope Ⅱ: dynamics, metallicity and age

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Research in Astronomy and Astrophysics 2012年第7期12卷 829-844页

作者： Zhou Fan ya-fang Huang Jin-Zeng Li Xu Zhou Jun Ma Yong-Heng Zhao Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academyof Sciences Beiiin~ 100012 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

In Paper I, we performed spectroscopic observations on 11 confirmed glob- ular clusters （GCs） in M31 with the Xinglong 2.16 m telescope. We mainly focused on the fitting method and the metallicity gradient for the M31 GC sample. Here, we analyze and further discuss the dynamics, metallicity and age, and their distributions, as well as the relationships between these parameters. In our work, eight more con- firmed GCs in the halo of M31 were observed, most of which lack previous spectro- scopic information. These star clusters are located far from the galactic center at a projected radius of ~ 14 to ~ 117 kpc, which is more spatially extended than that in the previous work. Firstly, we measured the Lick absorption-line indices and the ra- dial velocities. Then the ages and metallicity values of [Fe/H] and [a/Fe] were fitted by comparing the observed spectral feature indices and the Single Stellar Population model of Thomas et al. in the Cassisi and Padova stellar evolutionary tracks, respec- tively. Our results show that most of the star clusters in our sample are older than 10 Gyr except B290, which is ~ 5.5 Gyr, and most of them are metal-poor with metallicity [Fe/H] 〈 - 1, suggesting that these clusters were born at the early stage of the galaxy＇s formation. We find that the metallicity gradient for the outer halo clusters with rp 〉 25 kpc may have an insignificant slope of -0.005 ＋ 0.005 dex kpc-1 and if the outliers G001 and H11 are excluded, the slope does not change significantly, with a value of -0.002 ~ 0.003 dex kpc-1. We also find that the metallicity is not a function of age for the GCs with age 〈 7 Gyr, but for the old GCs with age 〉 7 Gyr, there seems to be a trend that the older ones have lower metallicity. Additionally, we plot metallicity distributions with the largest sample of M31 GCs so far and show the bimodality is not significant, and the number of metal-poor and metal-rich groups be- comes comparable. The spatial distributions show that the me

关键词： galaxies: individual (M31) -- galaxies: star clusters -- globular clusters:general -- star clusters: general