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介绍刺绣工艺的历史和发展,以及手工艺刺绣和电脑刺绣在家用纺织品中的应用情况,分析家用纺织品中常用刺绣纹样的寓意,探索刺绣工艺在家用纺织品中的发展空间。 相似文献
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王冬 《中国眼镜科技杂志》2010,(5):101-103
上期重点介绍了隐性斜视的发病原因、与显性斜视和正位眼的鉴别以及用马氏杆和Von Graefe法检查隐斜值。在实际检查过程中,经常出现患者不太理解验光师的讲解情况,特别是理解能力较差、反应较为迟钝的患者更是如此。对于这种情况,如果用马氏杆检查,可以用画图的方式给患者讲解,如点和线的位置关系等;如果用VonGraefe法检查,则可以用手把手的方式告知患者,如将患者的右手向右上方举起, 相似文献
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自古以来,皮革对人类而言,星极具魅力让人渴望不己的东西。“天子狐白,诸侯狐黄,大夫狐苍,士大夫熹”,“秦王坐碍貂皮,贝勒用猞猁,贝子用豹皮,公候用虎度。文武一品用狼,二品用獾,四至六品用羊,七品用鹿,八品用狍,九品用獭。”这是中国古代用皮革服饰制度维持等级的尊严。“貂度只能由王室成员和贵族穿着,市民只能穿着牛度、兔度、猫皮制的衣服”。这是西欧中世纪对皮革使用的法律限制。而幸运的现代人可以不再受阶级地位的限制,轻松地披上各式各样阳皮草服饰,享受着皮草带来的温暖与时尚。如今,随着人工养殖水平的不断提高,皮革价格也越来越能够被大众接受。皮革不再是奢侈的代名词,而是人们个性张扬,表达自我的一种特殊的服饰语言,皮草设计正朝着平民化的方向一路走来。 相似文献
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用淀粉色浆代替颜料。扩大了手绘产品的花色品种。文中介绍了用酸性染料色浆绘制真丝绸,用直接染料色浆绘制棉、麻、粘胶丝织物,用分散染料绘制合纤织物等。使用效果好。同时,分别总结了各色浆的调制方法和产品加工要求。 相似文献
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为了制定膜结构用涂层织物技术标准,简述了制定膜结构用涂层织物技术标准的目的与意义,对比了国内外膜结构用涂层织物相关技术标准,从分类和命名原则、规格和代号、要求(考核项目及技术指标)和试验方法4个方面探讨了膜结构用涂层织物技术标准的主要内容。 相似文献
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我国卷烟行业对卷烟用纸的要求卷烟是由烟丝和卷烟纸卷制而成,卷烟工业需用的纸和纸板材料多达十几种,如卷烟纸,过滤嘴用成型纸,水松纸,防潮用铝箔纸,盒装用胶版印刷纸、单面胶版印刷纸、铜版纸,硬盒用白卡纸,条装用白卡纸、涂布白纸板,箱装用瓦楞原纸、箱纸板、... 相似文献
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ABSTRACT: We investigated means of improving efficacy of hydrogen peroxide washes in reducing Escherichia coli populations on inoculated apples by increasing contact between attached bacteria and the wash solution. Golden Delicious apples were inoculated with E. coli and treated with heated 5% H2 O2 with or without agitation, by spraying and simultaneous brushing or abrading calyx and stem areas, or by vacuum infiltration. Samples were homogenized, diluted, and plated to enumerate surviving bacteria. Population reductions were greater when apples were treated with agitation, by targeted spraying with abrasion, by vacuum infiltration with stem removal, and by application of treatments at 80 °C. However, discoloration occurred at temperatures above 60 °C. 相似文献
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大豆蛋白水解物中肽分子分布的研究 总被引:4,自引:0,他引:4
研究采用超滤法与凝胶过滤色谱(GFC)相结合实验方法就大豆蛋白酶解产物寡肽混合物的分子量的分布状况进行了测定,研究结果表明,木瓜蛋白酶与Asl.398蛋白酶的酶解物中以分子量在1000D以下的小肽为主:木瓜蛋白酶解产物中分子量1000D以下的占63.9%,1000-2000D之间的4.64%,2000-4000D之间的占8.21%,4000-10000D之间的占8.20%,分子量10000D以上的占15%;Asl.398蛋白酶酶解物中分子量1000D以下的占72.1%,1000D-2000D的占6.42%,2000D-4000D之间的占2.5%,4000-10000D之间的占3.92%,10000D以上的占15%。 相似文献
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采用固相微萃取(solid-phase microextraction,SPME)与溶剂辅助蒸发萃取(solvent-assisted evaporative extraction,SAFE)法结合气相色谱-质谱(gas chromatography-mass spectrometry,GC-MS)联用技术分析酒花浸膏中的香气成分,同时采用气相色谱-嗅闻仪(gas chromatography-olfactory,GC-O)结合香气提取稀释分析(aroma extraction dilution analysis,AEDA)方法和香气活性值(odor activity value,OAV),最终确定酒花浸膏的关键性香气成分。结果显示,采用2 种萃取方法结合GC-MS在酒花浸膏中共鉴定出111 种香气成分;经GC-O分析共鉴定出27 种香气活性化合物,其中异丁酸乙酯、丁二酸二乙酯、2-甲基丁酸含量最高,结合风味稀释因子和OAV分析共同确认酒花浸膏的关键香气成分为异丁酸乙酯、2-甲基丁酸、异己酸乙酯、辛酸乙酯、癸酸乙酯等化合物。 相似文献
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Andreas Jankiewicz Werner Baltes Klaus Werner Bgl Lutz Ingo Dehne Annette Jamin Andreas Hoffmann Dieter Haustein Stefan Vieths 《Journal of the science of food and agriculture》1997,75(3):359-370
Celery roots were processed by microwave heating, cooking, drying, γ-irradiation, ultra high pressure treatment and high voltage impulse treatment. The immunochemical stabilities of the three known allergenic structures of celery were tested with sera from patients who were sensitised to celery. In addition, rabbit antisera were used to detect the allergens profilin and Api g 1 on celery immunoblots. The specificity and reactivity of IgE from the patients' sera were investigated by immunoblotting, by an enzyme allergosorbent test (EAST) and by dose-related IgE inhibition experiments. The results of all three methods agreed closely and indicated high antigenic and allergenic activity in native celery which was reduced by thermal processing. The heat-stability of the known celery allergens decreased in the following order: carbohydrate epitopes> profilin>Api g 1. In contrast, the allergenicity was only mildly reduced by non-thermal processing. The results obtained with human IgE were confirmed by an in vitro mediator-release assay that is based on rat basophil leukemia cells (RBL cells) which were passively sensitised with celery-specific murine IgE. With sera from mice that had been immunised with native celery, the native sample and non-thermal celery preparations elicited the strongest mediator release, whereas a weak response was obtained with samples from heat-processed celery. These results agreed closely with the data obtained in allergic patients whose IgE antibodies were directed against the major protein allergen Api g 1. Our results may be helpful in risk assessment and in selecting food preparations which can be consumed without symptoms by a subgroup of celery-allergic patients with a known sensitisation pattern. ©1997 SCI 相似文献
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以罗非鱼、南美白对虾和鳗鲡为实验对象,建立了水产品中三聚氰胺的离子对反相液相色谱测定法。用三氯乙酸和乙酸锌溶液超声提取待测物,离心后上清液过MCX阳离子柱净化,氨化甲醇溶液洗脱,水浴氮气吹干,用甲醇水溶液定容过滤后供高效液相色谱(HPLC)分析,外标法定量。结果表明,三聚氰胺在0.5~100.0mg/L浓度范围内呈线性相关,相关系数R2=0.9999。加标水平在0.2~10.0mg/kg时,回收率为87.6%~94.3%,相对标准偏差为3.9%~7.1%,检出限为0.2mg/kg。 相似文献