Results 31 to 40 of about 1,496 (159)
, 2012 以水稻、高粱和玉米为研究对象,考察了微囊藻毒素对受试作物的毒性差异,研究了不同浓度MC对萌发及萌发初期生长发育的影响,不同灌溉时期对受试作物生长发育的影响,检测指标包括发芽率、株高、鲜重、叶绿素、根系活力等。结果表明,受试作物对微囊藻毒素毒性并不一致,水稻发芽率受到明显抑制,高粱发芽率基本不受影响,玉米出现了低浓度促进、高浓度抑制的现象;MC对水滔、高粱和玉米的光合作用、株高和鲜重没有抑制作用,反而有一定的促进效果;不同灌溉时间条件下的研究结果表明,萌发前对高粱和玉米染毒会明显抑制植株根系活力 ...
刘剑彤, 刘碧波, 吴烨, 耿俊杰
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Eyes on nature: Embedded vision cameras for terrestrial biodiversity monitoring
Methods in Ecology and Evolution, Volume 15, Issue 12, Page 2262-2275, December 2024.Abstract We need comprehensive information to manage and protect biodiversity in the face of global environmental challenges, and artificial intelligence is required to generate that information from vast amounts of biodiversity data. Currently, vision‐based monitoring methods are heterogenous; they poorly cover spatial and temporal dimensions, overly ...
Kevin F. A. Darras +11 more
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甘肃省油菜生产现状、问题及对策Status, problems and countermeasure of rapeseed production in Gansu Province
Zhongguo youzhi为了推动甘肃省油菜产业高质量发展，从油菜种植面积、油菜籽产量、油菜生产机械化程度、主栽品种类型和主推技术等方面分析了甘肃省油菜生产现状，分析了甘肃省油菜生产中存在的问题，并提出了对策。甘肃省油菜生产存在油菜品种搭配不合理，机械化生产技术与装备落后，绿色生产技术研发、应用不够和油料加工业发展滞后等突出问题。为此，提出了加强政策扶持，引导和推动规模种植，加强适宜机械化收获品种的选育，加快研制和筛选油菜机械化装备，发展产业基础性研究，以及培育加工龙头企业等建议。In order to promote the ...
马蕊1，陈其鲜2，刘丽君3，马骊3，李峰4，崔小茹2，张亚宏5，孙万仓1，王旺田3，武军艳1 MA Rui1, CHEN Qixian2, LIU Lijun3, MA Li3, LI Feng4, CUI Xiaoru2, ZHANG Yahong5, SUN Wancang1, WANG Wangtian3 ,WU Junyan1
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Function of SAV6 in Maintenance of Genome Integrity and Root Development in Arabidopsis [PDF]
, 2015 flap核酸内切酶FEN1（flapendonuclease1）是RAD2家族的一种能够识别特异底物结构的核酶。FEN1具有三种酶活性：flap核酸内切酶（FlapEndonuclease,FEN）活性、5’核酸外切酶（5’-Exonuclease,EXO）活性和缺口依赖的核酸内切酶（GapEndonuclease,GEN）活性，在DNA复制、修复以及维持端粒稳定性等方面发挥着重要作用。人们对FEN1在哺乳动物、酵母中的功能已经有了深入了解，但是拟南芥中尚无相关研究 ...
张益娟
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Politeness in Restaurants of Different Grades [PDF]
, 2014 Based on the politeness theories proposed by Brown and Levinson, by Leech, and by Gu, this article tries to explore how environment affects waiters/waitresses and their language and behavior. A qualitative approach is taken in the research to analyze the
PENG, Xiamei
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Simulation study of factors influencing oil yield during cold pressing of rapeseed [PDF]
, 2023 Objective: This study aimed to investigate the factors influencing the oil yield of rapeseed during pressing in a double screw oil press. Methods: To simulate the pressing process of rapeseed and to explore the effects of two factors, the speed of the ...
HUANG Tao +3 more
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浓香菜籽油挥发性风味物质的研究进展Research progress on volatile flavor compounds of fragrant rapeseed oil
Zhongguo youzhi为了对浓香菜籽油的风味品质控制及产业的健康发展提供参考，概述了浓香菜籽油中的挥发性风味物质，并总结了浓香菜籽油挥发性风味物质种类和含量的影响因素。浓香菜籽油中主要的挥发性风味物质包括硫苷降解产物、脂质氧化产物、杂环类化合物，其中硫苷降解产物赋予浓香菜籽油辛辣香味，脂质氧化产物赋予浓香菜籽油青香、果香和油香，杂环类化合物使浓香菜籽油呈现坚果香、焙烤香和些许焦糖香。原料品种、原料预处理方式、油脂精炼工艺以及储存条件均会影响浓香菜籽油中的挥发性风味物质种类和含量。因此，应选择合适的原料、加工工艺和储存条件 ...
蒋黎艳1，邓志薇1，李佳灵1，朱定萍2，肖新生1 JIANG Liyan1, DENG Zhiwei1, LI Jialing1, ZHU Dingping2, XIAO Xinsheng1
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Zhongguo youzhi, 2022 为探索高含量中长链脂肪酸甘油三酯（MLCT）和低成本的酶法催化合成MLCT工艺，以一级菜籽油为原料，采用脂肪酶Lipozyme TL IM酶法催化酯交换合成MLCT，采用单因素试验研究了底物配比（菜籽油与中链甘油三酯质量比）、反应时间、反应温度、酶添加量对酯交换反应的影响，在此基础上，通过正交试验对MLCT合成工艺条件进行优化。结果表明，最佳的MLCT合成工艺条件为底物配比 3∶ 1、反应时间4 h、反应温度50℃、酶添加量8%（基于底物的质量），在此条件下MLCT含量达到87.50 ...
杨颖，熊巍林，汪增乾，李敏利，姜黎YANG Ying，XIONG Weilin，WANG Zengqian，LI Minli，JIANG Li
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Improvement of production method for the conversion of sunflower oil into biodiesel by hydroxide-catalyzed transesterification [PDF]
, 2008 Thesis (Ph. D. in Biotechnology)--University of Tsukuba, (A), no.
Bambase Manolito E. Jr.
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Shuitu Baochi Xuebao, 2011 该文研究了污泥肥对油菜产量、品质及重金属累积的影响规律.结果表明:在适宜范围内(50～80 g污泥肥/盆)污泥肥施用可以明显提高盆栽油菜的产量,当污泥肥用量达到100 g/盆时,污泥肥对盆栽油菜产量的促进作用会明显降低.污泥肥比化肥更能促进油菜对N、P、K营养元素的吸收,提高盆栽油菜可溶性糖、还原型Vc等相关品质指标.污泥肥施用后的油菜硝酸盐含量随污泥肥用量的增加而减少.油菜的硝酸盐和重金属含量均在相关蔬菜食用安全标准范围内.
康少杰 +4 more
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