Results 11 to 20 of about 26,696 (205)
Shuitu Baochi Xuebao, 2022 水文恢复力是流域或生态系统维持水文稳定性的重要参考指标,深入研究植被结构和水文恢复力之间的关系是未来在全球变化背景下生态水文学的重要方向。但目前水文恢复力对气候变化与人类活动等不同干扰方式的响应机制还缺乏系统的研究,水文恢复力的形成机制及其与植被结构的关系也尚无全面的认识。系统总结了当前水文恢复力的主要概念,从水分利用效率、Budyko框架的水平衡、植被景观结构变化与受到干旱干扰的恢复时间等不同角度总结了5种主要的算法,分析了气候变化 ...
孙美荣 +3 more
doaj
Physiological responses of three cultivar seedlings of Bougainvillea under drought stress [PDF]
, 2017 该研究对勤花三角梅(Bougainvillea buttiana Miss Manila')、樱花三角梅(B.glabra Imperial; Delight')和金心鸳鸯三角梅(B.peruviana; Thimma')三个三角梅品种的幼苗进行人工干旱胁迫,分析了干旱胁迫对三角梅品种的外观形态和生理生化水平的影响,探讨了不同品种三角梅对干旱胁迫的; 适应能力。结果表明:随着干旱时间的延长,三角梅品种的叶片出现下垂、皱缩、变黄、脱落,最后植株死亡;过氧化物酶POD活性先升高后降低,而超氧化物歧 ...
丁印龙 +4 more
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Binocular suppression based asymmetrical stereo image watermarking with self-recovery [PDF]
, 2013 To authenticate the integrity of stereo image,an asymmetrical stereo image watermarking scheme based on binocular suppression was proposed.Firstly,according to the features of stereo vision,the computation of binocular sup-pression model was established ...
Feng SHAO +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2011 通过表面化学修饰，制备了超疏水CaCO3/SiO2复合粒子，并用接触角测量仪检测疏水性能，当CaCO3与纳米SiO2质量比小于10：1时，可以制得超疏水复合粒子.基于表面修饰的CaCO3/SiO2复合粒子，对亲水涂料进行改性，当CaCO3与纳米SiO2质量比小于6 ： 1时，可以制得超疏水涂层，且涂层疏水性随复合粒子加入量的增加而增大.同时，采用扫描电镜、红外光谱和热重分析等对复合粒子进行结构表征，探讨了基于CaCO3/SiO2复合粒子制备超疏水表面的机理.
BANGGyong-nam(方京男) +4 more
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Study on Temperature and Pressure Variation of Scallop During Vacuum Freeze-drying [PDF]
, 2010 An experiment was conducted with the parameter adjustment of two-time poikilothermia and one-time variable pressure process during freezing and drying process for the adductor muscle of Chlamys Farreri.The result shows that the center temperature of the ...
Zheng Lijing Guan Zhiqiang Li Min
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Components, Processing Characteristics and Aroma of Xinjiang Qiamagu (Brassica rapa L.) Powder Prepared by Different Drying Methods [PDF]
, 2023 Qiamagu (Brassica rapa L) is a plant that can be used both as an edible and medicinal plant. Qiamagu powder is a common form of processed product, which can be used as an ingredient in direct edible products or other products.
Biansheng LI, Jiangchao WU, Jing WANG
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Shuitu Baochi Xuebao, 2023 以青藏高原东北边缘云杉属-冷杉属林火烧迹地为研究对象,基于典型抽样法于2020年8月和2021年7—8月在火烧迹地和未过火天然林采集枯落物样品,采用室内浸泡法测定分析枯落的蓄积量、持水量、有效拦蓄量等指标,探究林火干扰下不同坡位枯落物的水文效应,为更好地促进森林水源涵养以及水土保持功能提供依据。结果表明:(1)在植被恢复过程中,枯落物的厚度和蓄积量随着恢复年限的增加而增加,且厚度为3.75~8.31 cm,蓄积量为6.16~8.13 t/hm2。恢复5,15年火烧迹地上、中 ...
贺万鹏 +6 more
doaj
Medium temperature and humidity evolution of closed heat pump drying and its influence on energy consumption [PDF]
, 2023 Objective： This study aimed to resolve the interactions among the material dehydration, temperature and humidity of dry medium, and the energy consumption.
CI Wen-liang +4 more
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Study on improving the properties of rice flour and rice vermicelli quality by heat treatment with lactic acid solutions [PDF]
, 2020 The paper mainly studies the effect of heat treatment with lactic acid on properties of rice flour and quality of dried rice vermicelli and wet rice vermicelli.Indica rice flour by water milling was selected as raw material and treated with different ...
LIAO Lu-yan, LIU Hui-hui
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Monitoring and Analysis on Eutrophication Status in Baoan Lake of Hubei Province [PDF]
, 2022 [Objective] The spatio-temporal characteristics of the eutrophication status in Baoan Lake, and the key water environmental impact factors were studied in order to provide a basis for ecological restoration and protection. [Methods] Monitoring sites were
Chen Jiaxin +4 more
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