Results 101 to 110 of about 68,199 (213)
Shuitu Baochi Xuebao, 2018 通过室内模拟冷冻和放水冲刷试验，采用2个放水流量（1，2 L/min）、2个土壤处理（未冻坡面，冻结坡面）和4个覆沙厚度（0，1，2，3 cm）研究不同处理对覆沙黄土坡面产流产沙的影响。结果表明：（1）相同流量条件下，覆沙坡面初始产流时间延长，随着覆沙厚度的增加，延长效果越明显，而冻融作用使坡面初始产流时间缩短；不同处理坡面的产流产沙峰值均增大，并且产流量与产沙量的峰现时间具有不同步性。（2）不同流量条件下，不同处理坡面总产流量是对照坡面的1.02~1.28倍，冻结坡面和冻结 ...
任宗萍 +6 more
doaj
Screening of SNP Loci of Growth-related Candidate Gene and Genetic Diversity of Five Populations Based On Microsatellite Markers in Fujian Oyster, Crassostrea angulata [PDF]
, 2015 福建牡蛎(Crassostreaangulata，C.angulata)又名葡萄牙牡蛎，具有重要的经济价值和生态价值，但由于长期未经选育以及人工育苗的应用，导致牡蛎养殖出现经济性状衰退及死亡率逐年增高等现象，亟需加强种质资源保护，开展遗传改良研究。本研究利用单核苷酸多态性分子标记（singlenucleotidepolymorphism，SNP）对福建牡蛎生长相关的5个候选基因，即胰岛素相关多肽（insulinrelatedpeptides，IRPs）、ɑ-淀粉酶（ɑ-Amylase，ɑ-AMY ...
楚瑞敏
core
Extent of threats to marine fish from the online aquarium trade in the United States
Conservation Biology, Volume 40, Issue 1, February 2026.The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Bing Lin +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 为研究冻融坡面径流冲刷条件下侵蚀产沙过程，采用2个坡度（10°，15°）、3个流量（3，6，9 L/min）、2个起始解冻深度（6，12 cm）组合进行野外冲刷试验，结合近景摄影测量技术分析不同解冻深度、不同坡度和不同流量条件下的产沙量，运用线性回归方程对近景摄影测量值和实测值进行拟合。结果表明：起始解冻深度和坡度相同条件下，冻融坡面的土壤侵蚀产沙量随着径流量和坡度的增大而增大；随着时间推移，产沙量越来越小。在流量和坡度相同时，随着初始解冻深度的增大，坡面产沙量也逐渐增大；在流量和解冻深度相同时 ...
明旭辉 +4 more
doaj
Mangrove restoration by water quality improvement: A case of Dongzhaigang Bay, Hainan, China [PDF]
, 2016 受自然和人为活动的威胁，全球红树林严重退化，不仅红树林面积锐减，而且红树植物群落退化、生态功能受损。近几十年来红树林恢复得到广泛关注，世界各地开展了广泛的红树林恢复活动。人工造林是最常用的红树林恢复手段，但不适宜的造林不能有效地恢复红树林，而且中国红树林的宜林地面积有限，除人工造林外，还应该考虑其他手段。本研究以东寨港红树林为例，探讨不通过造林的红树林生态恢复措施。 2008年以来，东寨港红树林由于水产养殖和禽畜养殖的污染而严重退化。为改善东寨港的环境状况，2012年以来 ...
米雪芳
core
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 322-335, February 2026.ABSTRACT Most research into the relationships of linguistic complexity and accuracy to functional adequacy has focused on either spoken or written mode. The current study extended previous studies by investigating these associations across both modalities and how the nature of these relationships was influenced by learners’ L2 proficiency and task type.
Xiaojun Lu, Yui Suzukida
wiley +1 more source
Gaoya dianqi, 2010 通过对国内16家主要220 kV、110 kV主变压器生产企业质量调研,对各生产企业的质量管理体系、人力资源、原材料、生产工艺、生产及检测情况等5个方面进行了分析,指出了各厂220 kV、110 kV主变压器样品质量检测存在的产品损耗偏大、温升偏高、生产试验设备老化等问题。为生产企业进一步提高产品质量提供建议。
李宏斌
doaj
Studies on the Function of Genes Related to Zinc Accumulation of the Fujian Oyster Crassostrea angulata [PDF]
, 2015 牡蛎是我国重要的经济贝类，具有很高的营养价值和保健价值，牡蛎富含人体所需多种微量元素，尤其是锌含量十分丰富。牡蛎同一群体的不同个体间的锌含量有很大差别，但其分子机制迄今尚未阐明。本文研究了福建牡蛎（Crassostreaangulata）几种锌富集相关基因与锌富集的关系，研究结果可为解析牡蛎对锌的高富集及个体富集差异的分子机制提供新资料。主要研究结果如下： 1、利用cDNA末端快速扩增技术（rapid-amplicationofcDNAends，RACE）扩增福建牡蛎锌富集相关基因cDNA全长 ...
向旭
core
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 652-666, February 2026.ABSTRACT Given the importance of the linguistic landscape in language learning, the digital linguistic landscape (DLL) has emerged as an important multimodal input resource. However, few studies have been conducted to explore the antecedent and predictive effect of the DDL on L2 writing. To address this gap, the study attempted to conceptualize the DLL
Zi Yang, Lawrence Jun Zhang
wiley +1 more source
Veterinary Dermatology, Volume 37, Issue 1, Page 34-44, February 2026.Background: The chronic and multifactorial character of canine atopic dermatitis (cAD) often leads to poor disease control and treatment dissatisfaction. Environmental factors are likely to contribute to the disease development and may play a more important role than assumed previously.
Patricia Clara‐Maria Rhodius +11 more
wiley +1 more source