共查询到20条相似文献，搜索用时 546 毫秒
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蜜梨贮藏保鲜技术研究进展 总被引：1，自引：0，他引：1
概述国内外蜜梨贮藏保鲜技术的发展历史与研究方法,综述蜜梨贮藏保鲜技术中的物理、化学以及生物方法,提出壳聚糖涂膜、中药提取物涂膜保鲜的应用前景以及今后的主要发展方向。 相似文献
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根据冬枣减压贮藏保鲜试验,总结出冬枣减压贮藏保鲜应注意的主要技术环节,并对其保鲜机理、试验效果、经济效益、存在问题进行了分析. 相似文献
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果蔬贮藏技术应用进展 总被引：1，自引：0，他引：1
果品蔬菜贮藏保鲜是实现果蔬采后减损增值、建立现代果蔬产业化经营体系的基础.本文介绍了目前国内外在果品蔬菜贮藏保鲜中的研究进展与应用成果,包括真空技术、辐射技术、微波技术、减压技术等各种高新技术的原理及应用,同时展望了果蔬贮藏未来的发展方向. 相似文献
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湿冷技术是一种可以提供高湿低温贮藏环境的保鲜新技术。该技术适合于果蔬的预冷,也适合于它们的贮运贮藏保鲜。具有提高冷藏果蔬品质、降低冷库运行费用和平衡电网负荷等优点,因此推广该技术有广阔的前景。本文重点分析了湿冷技术特点、在果蔬保鲜中应用现状及前景展望。 相似文献
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分析了我国鲜活植物产品贮藏保鲜与专业技术人才培养的现状和存在的问题,提出了开办农产品贮藏工程与技术专业,培养具有现代生物学、工程学、信息学及贸易学知识和技术,具有国际观的现代复合型农产品贮藏保鲜专门人才的建议. 相似文献
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黄艺宁 《Journal of Zhangzhou Technical Institute》2019,(1):71-75
针对目前杏鲍菇贮藏保鲜时间短、易出现失重、品质下降等现象,寻找杏鲍菇贮藏保鲜的新材料,达到延长保鲜效果的目的。以新鲜的杏鲍菇为原料,对比纳米保鲜袋与普通保鲜袋在(2±1)℃及常温下贮藏的保鲜效果。结果表明,在低温下不同包装材料对杏鲍菇的感官失重率影响不显著,但对可溶性多糖以及蛋白质含量的影响达到显著差异。在常温下贮藏12 d时,纳米包装材料的杏鲍菇感官指标优于普通材料,且对可溶性多糖以及蛋白质含量的影响达到显著差异。不同包装材料对杏鲍菇失重率的影响在贮藏第12 d达到差异显著,12 d内差异不显著。采用纳米包装材料对杏鲍菇贮藏有一定保鲜效果,特别是在常温下贮藏12 d,纳米材料的保鲜效果显著优于普通材料。 相似文献
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通过试验研究,设计建成经济实用小型板栗保鲜贮藏库,提出了土建施工要求、设备选型及安装要求,并在生产中付诸应用,可用于贮藏板栗、大枣以及猕猴桃等果品,具有良好的保鲜贮藏效果。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献